Compare commits

...

502 Commits

Author SHA1 Message Date
cf79751f4f Merge pull request #1207 from akohlmey/next-patch-release
Patch release 15 November 2018
2018-11-15 19:33:52 -05:00
e4dee3de17 Merge pull request #1206 from akohlmey/collected-small-changes
Collected small changes for next release
2018-11-15 17:29:26 -05:00
6e225d90fc fix some minor bugs write data file writing and remove dead code and silence compiler warnings 2018-11-15 16:50:56 -05:00
1fc3b4618c remove dead code and silence compiler warnings 2018-11-15 16:50:56 -05:00
eae9d27f6d OpenMP support from the compiler is not a requirement for USER-OMP. Without OpenMP, it is like the OPT package but for many more styles, so it is still useful and should be supported. 2018-11-15 16:50:56 -05:00
db29ec7eee complete workflow document 2018-11-15 14:58:02 -05:00
090778c42b Merge pull request #1204 from lammps/doc-plumed
Linkage mode improvements and documentation updates for USER-PLUMED package
2018-11-15 13:48:58 -05:00
db935dba5e Merge pull request #1201 from junghans/cmake_doc
cmake: update internal doc about how cmake finds executables
2018-11-15 13:48:17 -05:00
e160376365 incomplete first draft. committed for checking the markup in github. 2018-11-15 12:45:15 -05:00
d5f222464b Update README.md 2018-11-15 09:48:46 -07:00
4d9e2a014b add detailed build instructions and discussion of linkage modes for PLUMED library and USER-PLUMED package 2018-11-15 11:35:04 -05:00
8a4983e4bc reformatting and simplification of fix plumed docs 2018-11-15 10:53:38 -05:00
82d6aa9add interlink fixes colvars, plumed, and smd 2018-11-15 10:52:41 -05:00
4231ab3d57 correct some links 2018-11-15 10:52:03 -05:00
25914ea3f3 patch 15Nov2018 2018-11-15 10:17:25 -05:00
003bb28471 make @gtribello code owner of the USER-PLUMED package 2018-11-14 22:17:25 -05:00
a557644939 support all three plumed linkage modes with CMake as well. For downloaded and previously installed plumed lib 2018-11-14 22:13:18 -05:00
04520e627d add code and scripts to support all three plumed linkage modes with fix plumed for conventional build 2018-11-14 21:26:36 -05:00
952e52982e add comment to indicate code intended for backward compatibility only 2018-11-14 05:37:59 -05:00
a942d8b3ba use memset() for clearing of arrays 2018-11-14 05:30:23 -05:00
7a22b8aa62 check only in currently added data file atoms for dihedral overflow 2018-11-14 05:29:26 -05:00
4c1fbc359a use tagint when unpacking atom tags from communication buffers 2018-11-14 05:28:19 -05:00
2c644c5f2e Merge pull request #1197 from akohlmey/collected-small-fixes
Collection of small changes and bugfixes for the next release
2018-11-13 15:18:09 -05:00
b1186a971e Merge pull request #1202 from lammps/hyper
Add Hyper-dynamics to REPLICA package
2018-11-13 15:17:30 -05:00
2dbd575a4b Merge pull request #1203 from stanmoore1/kk_update
Update Kokkos library in LAMMPS to v2.7.24
2018-11-13 15:15:09 -05:00
4805e1df22 doc page additions for USER-PLUMED package 2018-11-13 08:29:07 -07:00
380f0e4971 remove some debugging code 2018-11-13 08:06:40 -07:00
a026ce9669 correct broken links detected by make mobi 2018-11-12 21:38:26 -05:00
7e779d16de correct broken links in manual reported by 'make html' 2018-11-12 21:33:37 -05:00
b776f0f29f remove dead code and silence warnings about unused parameters 2018-11-12 21:11:55 -05:00
443644025f silence compiler warnings 2018-11-12 20:50:14 -05:00
c4c90a96ec avoid void return from non-void function 2018-11-12 20:49:01 -05:00
5cb2463204 c++ style include files do not have a .h extension 2018-11-12 20:33:30 -05:00
5a4e44b75a remove accidentally duplicated code 2018-11-12 20:27:21 -05:00
0ca02b6f41 added new commands to doc pages, fixed a few missing entries as well 2018-11-12 17:23:15 -07:00
2b96dfd6cc Remove deprecated Kokkos code 2018-11-12 15:49:31 -07:00
c22c6e4d34 Add LAMMPS changes to Kokkos Makefile 2018-11-12 15:30:14 -07:00
b2d67bcbb5 Remove tpls dir 2018-11-12 15:18:06 -07:00
b3f08b38a2 Update Kokkos library in LAMMPS to v2.7.24 2018-11-12 15:16:26 -07:00
8e9d4f5bce modify bond style hybrid, so it can handle bond style quartic as a sub-style 2018-11-12 16:06:55 -05:00
fe07ad279d added NULL declations to constructor, removed debug code 2018-11-12 12:32:54 -07:00
5062c43aea rename example outputs 2018-11-12 12:32:53 -07:00
90caf0019c fix doc page errors 2018-11-12 12:32:53 -07:00
3b7ebbb8df new hyper examples 2018-11-12 12:32:53 -07:00
d7a479d2f6 hyper example dir 2018-11-12 12:32:52 -07:00
0c8ce199af more updates to hyper docs 2018-11-12 12:32:52 -07:00
4a6f088c0b updates to hyper doc pages 2018-11-12 12:32:52 -07:00
56598fcd0b changes to prd command doc page 2018-11-12 12:32:52 -07:00
265c11dca9 more edits to hyper docs 2018-11-12 12:32:52 -07:00
d6631266ce doc files in wrong dir 2018-11-12 12:32:52 -07:00
fbd610b8a9 global/local hyperdynamics src and doc files 2018-11-12 12:32:52 -07:00
86d1304176 cmake: update doc aobut executables 2018-11-10 18:58:53 -07:00
f68d77c7af correct formatting 2018-11-09 08:03:58 -05:00
7a4f534676 replace non-ASCII character 2018-11-09 08:03:41 -05:00
729201ab93 fix typo reported in #1199 2018-11-09 08:03:19 -05:00
ab8215a669 remove dead code 2018-11-09 01:09:31 -05:00
fe04147ee0 fix typo 2018-11-09 01:09:22 -05:00
62b1159673 update presets for USER-PLUMED package. fix typo. 2018-11-09 01:08:57 -05:00
adeb0c2b54 replace faulty preprocessor logic
fixes #1196
2018-11-09 01:08:57 -05:00
1651a21f92 Merge pull request #1198 from akohlmey/next-patch-release
Patch release 9 November 2018
2018-11-08 20:49:49 -05:00
cbae3b5afa Merge pull request #1184 from DiscreteLogarithm/sdpd
add USER-SDPD package for Smoothed Dissipative Particle Dynamics
2018-11-08 17:21:21 -05:00
f2a29880e2 patch 9Nov2018 2018-11-08 16:48:43 -05:00
e0955f6434 Merge branch 'master' into sdpd to resolve merge conflicts
# Conflicts:
#	cmake/CMakeLists.txt
#	src/Makefile
2018-11-08 16:32:02 -05:00
3681bc853d Merge pull request #1195 from jrgissing/bond/react-custom_edges
Bond/react: charge update for custom edges
2018-11-08 16:19:23 -05:00
a6e9b99295 Merge pull request #1180 from gtribello/master
Add natively supported PLUMED interface to LAMMPS
2018-11-08 16:16:50 -05:00
893a51ce14 Merge pull request #1191 from akohlmey/msi2lmp-avoid-bad-topology
Dihedral generation bugfix for msi2lmp
2018-11-08 16:10:31 -05:00
80ee08482c Merge pull request #1182 from junghans/pkgconfig_doc
liblammps.pc: add some more documentation
2018-11-08 16:10:15 -05:00
bbb371134d include USER-SDPD package in list of user packages in conventional make 2018-11-06 22:38:02 -05:00
a1e8992eac replace non-ASCII characters 2018-11-06 22:21:19 -05:00
baa7b705b8 improve logic and grammar of error messages 2018-11-06 22:13:38 -05:00
2d12260ade remove bogus single function and set single_enable = 0 2018-11-06 22:13:05 -05:00
31277349c6 remove dead code and avoid compiler warnings 2018-11-06 22:10:27 -05:00
df232c1cf6 use c++ style include files for c-library functions 2018-11-06 22:09:05 -05:00
bdf73f7adb ignore USER-SDPD files when installed 2018-11-06 22:07:35 -05:00
84fcf01bed bond/react: allow custom update of charges near template edges
also, fixes a bug introduced in PR #1189, when not using stabilization
2018-11-06 19:59:22 -07:00
cc0d685e8e Merge pull request #32 from lammps/master
rebase
2018-11-06 19:52:08 -07:00
5196fa37e0 Merge pull request #1194 from ohenrich/user-cgdna
Update reference for USER-CGDNA
2018-11-06 15:52:22 -05:00
4e6253254c Merge branch 'master' into user-cgdna 2018-11-06 19:48:06 +00:00
562296bdb7 Updated link to preprint article 2018-11-06 19:44:35 +00:00
91c4ef6f64 Merge pull request #1189 from jrgissing/bond/react-custom_group
Bond/react custom group support
2018-11-06 10:32:06 -05:00
f46d6a4312 Merge pull request #1192 from julient31/master
update reference for SPIN package
2018-11-06 10:26:27 -05:00
cb828e9579 update reference 2018-11-06 07:48:47 +01:00
ed77701e56 Merge pull request #31 from lammps/master
rebase
2018-11-05 20:25:38 -07:00
7ed6cab040 do not generate illegal dihedrals, e.g. from 3-membered rings 2018-11-05 20:35:43 -05:00
ce7f76de1d cmake: switch plumed to full static mode 2018-11-05 07:39:23 -07:00
58d2f0cc57 cmake: fix linking again plumed 2018-11-05 05:55:31 -07:00
ab7aa9dfda correction to fix group property doc 2018-11-05 00:49:33 -07:00
6d1ea2d0b1 broke smooth restarts at some point. fixed 2018-11-05 00:46:53 -07:00
a3ca177d20 various small changes and reformatting
- add memory usage estimator
- test against varying number of atoms
- test against non-consecutive atom tags
- test for 32-bit overflow in number of atoms
- test for 32-bit overflow in timestep
- reduce tail correction error to warning
- more LAMMPS style formatting of the source code
- remove trailing whitespace
- avoid leaking memory from allocated arrays for masses/charges/tags
2018-11-04 19:52:10 -05:00
a3c0fe7726 Added check on fix modify for PLUMED to ensures that virial is calculated for group all 2018-11-04 11:43:07 +00:00
a051d61e1f Added functionality to support fix modify for fix plumed 2018-11-04 11:24:01 +00:00
8cb665f013 Added functionality to throw error when time step changes and PLUMED is being used 2018-11-04 10:21:28 +00:00
cb8c51e353 Got rid of some of the hard-coded units in the plumed interface 2018-11-03 18:13:28 +00:00
a37d718ed1 update bond/react examples 2018-11-03 12:01:00 -06:00
f7aa01d74a bond/react: convert group-ID to group-ID-prefix
enables consistent syntax when using custom groups
2018-11-03 11:57:46 -06:00
badfdd7433 download only the plumed-src package and include further tweaks to be compatible with plumed 2.5b 2018-11-03 00:21:10 -04:00
ac11d66d5a provide reference logfiles and move generated files to reference folder 2018-11-02 23:28:09 -04:00
18216de084 correctly check for fixes that maintain their own pressure compute 2018-11-02 23:21:09 -04:00
3cb2291a5a need to include comm.h now 2018-11-02 22:52:51 -04:00
54c52c3bdf adjust compilation settings to link in plumed library statically and all its dependencies 2018-11-02 22:52:36 -04:00
df3390e224 update formatting to closer match LAMMPS' programming style 2018-11-02 21:33:30 -04:00
d185b34b19 reformat to closer match LAMMPS programming style 2018-11-02 21:19:53 -04:00
30518a993b add LAMMPS header 2018-11-02 21:14:36 -04:00
b7e507a258 fix typo and reformat 2018-11-02 21:08:45 -04:00
ea9746f26d insert fix plumed docs into manual generation 2018-11-02 21:08:32 -04:00
2635f7d160 Merge pull request #1190 from giacomofiorin/colvars-update
Update Colvars library to version 2018-10-16
2018-11-02 20:11:28 -04:00
85a5cab663 Update Colvars library to version 2018-10-16 2018-11-02 17:45:20 -04:00
b1c50e3bbe Added plumed documentation in a txt file 2018-11-02 19:50:49 +00:00
0c7c344e19 additional molecule templates sanity-check
thanks to Sagar Patil for report
2018-11-01 01:26:12 -06:00
b67e54dd7d reciprocal 'related commands' 2018-11-01 01:09:52 -06:00
5821a5ecc8 bond/react: custom group with stabilization option 2018-11-01 01:04:45 -06:00
20b9c7fd79 Merge pull request #30 from lammps/master
rebase
2018-10-31 20:15:45 -06:00
a66d4c7451 Merge pull request #1186 from akohlmey/various-small-fixes
Various small fixes
2018-10-31 12:13:38 -04:00
7514838700 put LAMMPS sources folder first in list of include directories 2018-10-31 04:18:08 -04:00
1fccb391a6 Merge pull request #1185 from jrgissing/bond/react-update_edges-option
Bond/react: update edges option
2018-10-31 00:43:07 -04:00
688945a0ef silence compiler warnings about initialization order and unused args 2018-10-31 00:34:58 -04:00
50b99c8450 silence compiler warnings about unused arguments 2018-10-31 00:19:06 -04:00
446b05ebc1 silence warning about initialization order 2018-10-31 00:17:17 -04:00
2a5cd1d31e remove debug output 2018-10-31 00:16:44 -04:00
3faecc4d28 add option to update all atoms' atomic charges
option to update all atomic charges, even when edge atoms are defined
2018-10-30 22:11:52 -06:00
e992bf935b Merge pull request #29 from lammps/master
rebase
2018-10-30 20:35:47 -06:00
42068944aa Merge branch 'master' of github.com:gtribello/lammps into fix-plumed 2018-10-30 20:43:49 -04:00
e3b89b60dc add checksum support for downloaded tar archives. upgrade to v2.4.3 2018-10-30 20:43:20 -04:00
e70a9b0f26 updated CMakeLists to handle the optional dependency of USER-SDPD 2018-10-30 19:35:22 +03:30
113539b053 Merge pull request #1183 from akohlmey/voro-clean-namespace
Reduce namespace pollution for VORONOI package
2018-10-30 11:53:56 -04:00
ba6f6f73f1 first commit: added SDPD 2018-10-30 17:40:00 +03:30
c838a9fd48 use forward declarations for better namespace hygiene 2018-10-30 00:33:51 -04:00
fb4df86d3d Merge pull request #1170 from akohlmey/fix-merge-sort
Bug fix for merge sort by Jeffrey Frey
2018-10-29 18:47:50 -04:00
1bae30c295 liblammps.pc: add some more documentation 2018-10-29 06:57:46 -06:00
044507640f include Plumed.h with full path 2018-10-29 06:52:19 -06:00
bcc7a4c32f cmake: add PLUMED include dir 2018-10-29 06:36:47 -06:00
283096d1d5 update .gitignore 2018-10-29 03:50:55 -04:00
079134255d make sure class member "list" is initialized to NULL in constructor 2018-10-29 03:49:25 -04:00
25b425dbb0 no need to import the PLMD namespace globally 2018-10-28 22:21:35 -04:00
bee2cb96fa remove references to Plumed.cpp and Plumed.h 2018-10-28 22:18:27 -04:00
360aca581c remove last reference to voro++ 2018-10-28 21:56:49 -04:00
21661f84db Merge pull request #1181 from akohlmey/fixup-github-folder
Updates to contributing guidelines
2018-10-28 21:55:02 -04:00
a662afe970 fully integrate USER-PLUMED package into conventional build 2018-10-28 21:37:33 -04:00
3a082e227e remove obsolete and redundant files 2018-10-28 21:33:51 -04:00
54d728c0c7 reduce need for include files by adding forward declaration 2018-10-28 21:33:06 -04:00
ae499b980d make Plumed.cpp obsolete in USER-PLUMED code by inserting it into fix_plumed.cpp 2018-10-28 21:32:47 -04:00
925d6d37b9 adjust header inclusion to current LAMMPS conventions 2018-10-28 21:32:01 -04:00
bdf3764905 update user-plumed Install.sh file to fit better into LAMMPS, adjust to changes in lib folder 2018-10-28 21:31:40 -04:00
bfbf5695fd adjust path for includelink to find the Plumed.h wrapper properly 2018-10-28 21:30:37 -04:00
e788ffe210 Merge branch 'master' of github.com:gtribello/lammps into fix-plumed 2018-10-28 21:29:53 -04:00
3cc9384488 cmake: add support USER-PLUMED 2018-10-28 16:23:29 -06:00
a60b6d1ab8 add feature to python lib install script to support existing installation and use links 2018-10-28 18:12:32 -04:00
174b180a41 remove file that is not present 2018-10-28 18:12:02 -04:00
7bbd8644c8 rework some of the pull request instructions to be realigned with the recent changes in the workflow. 2018-10-28 08:50:37 -04:00
f36b7e38a8 correct link to github tutorial in CONTRIBUTING doc 2018-10-28 08:42:28 -04:00
f70af61b35 Added new version of Plumed wrapper 2018-10-28 09:27:22 +00:00
4fa78a78de Added instructions on PLUMED to build extras and Package details pages of manual 2018-10-26 22:12:17 +01:00
ff9f836be4 Merge remote-tracking branch 'upstream/master' 2018-10-26 22:01:05 +01:00
2e79d9f340 Merged Pablo's fixes into the plumed interface for lammps 2018-10-25 21:45:35 +01:00
2428c1c1f3 Merge pull request #1177 from lammps/modify-reorder
reorder operations in init() to fix a bug with compute chunk/atom del…
2018-10-25 10:55:14 -04:00
0e213b80e9 reorder operations in init() to fix a bug with compute chunk/atom deleting a fix 2018-10-25 08:23:10 -06:00
7069b52a44 Merge pull request #1172 from akohlmey/next-patch-release
Patch release 24 October 2018
2018-10-23 18:08:38 -04:00
45f28517ef Merge pull request #1174 from akohlmey/fix-kspace-refactor
Bug fix for Kspace refactoring in USER-INTEL package
2018-10-23 13:33:36 -04:00
fccc26758b Merge pull request #1152 from lammps/doc-adjust2
More Documentation consistency improvements
2018-10-23 13:05:04 -04:00
b6b6270716 fix bug reported in issue #1173 2018-10-23 11:58:00 -04:00
0293dee9b2 patch 24Oct2018 2018-10-23 11:03:51 -04:00
6107f00e9d Merge pull request #1164 from akohlmey/fix-halt-for-minimize
Enable use of fix halt for minimizations
2018-10-23 10:35:26 -04:00
1d38f2d725 Merge pull request #1165 from akohlmey/refactor-kspace-base-class
Refactor kspace base class to have a settings() method
2018-10-23 10:35:12 -04:00
4a5c14f60d Merge pull request #1148 from akohlmey/deprecated-styles
Implement dummy classes for deprecated and removed styles
2018-10-23 10:34:58 -04:00
aa27c8f733 convert double quotes to latex style 2018-10-23 09:17:00 -04:00
da38ae0370 apply fix for merge sort from issue #1163 by @jtfrey and re-enable it 2018-10-23 08:57:33 -04:00
527ec61586 Merge pull request #1169 from akohlmey/kokkos-parallel-for-workaround
Workaround for parallel_for() compilation issue with newer GNU compilers
2018-10-22 11:17:47 -04:00
8649081904 fix broken links in manual 2018-10-21 18:39:25 -04:00
c0dd187802 make sure all pictures are includes in epub/mobi files 2018-10-21 18:38:46 -04:00
3661836a3b Merge pull request #1168 from athomps/compute-adf
Created new compute ADF for angular distribution function
2018-10-20 20:57:38 -04:00
76a2a9ab0a Fixed normalization error for ordinate degree 2018-10-20 17:16:47 -06:00
8223f5e0a3 Eliminated another initialization error and tweaked rdf-adf example 2018-10-20 16:46:45 -06:00
07a499fcc1 improve check for missing styles in lammps.book 2018-10-20 10:01:55 -04:00
8aecefe233 fix uninitialized data bug in compute adf 2018-10-20 08:12:19 -04:00
2140caa6f5 add an example for RDF and ADF computation with water molecules 2018-10-20 08:12:02 -04:00
fb6f019a11 correct link to output options 2018-10-20 06:45:57 -04:00
79da210dc4 integrate compute adf into manual build infrastructure 2018-10-20 06:45:28 -04:00
348febdf4b work around for parallel_for() compilation issue with newer compilers
apparently, data items used inside parallel_for() constructs have
rather strict requirements on const-ness, which is enforced by
newer GNU compilers. As a workaround we construct explicit const
copies of those class instances. This closes #1045
2018-10-20 02:54:48 -04:00
0783f8ad2f Added compute_rdf.txt 2018-10-19 18:43:58 -06:00
3a735d15d4 Added compute_rdf.cpp 2018-10-19 18:43:04 -06:00
04a4a29fcf Creatd new compute ADF for angular distribution function 2018-10-19 18:36:11 -06:00
52f02f2bbb Merge pull request #1167 from lammps/create-triclinic-lib
fix triclinic rounding bug for lib interface as well
2018-10-19 19:06:01 -04:00
f82a8493fa Merge pull request #1166 from rbberger/cmake_prevent_src_builds
Add src directory to PreventInSourceBuilds checks
2018-10-19 17:56:25 -04:00
8cd70f7d78 fix triclinic rounding bug for lib interface as well 2018-10-19 15:27:38 -06:00
27a46cec8c Add src directory to PreventInSourceBuilds checks 2018-10-19 17:25:18 -04:00
15de09683e Merge pull request #1162 from lammps/restart2dump
added -restart2dump command-line option
2018-10-19 17:24:17 -04:00
f542590090 Merge pull request #1136 from junghans/cmake_out_source
cmake: prevent in-source build
2018-10-19 17:02:05 -04:00
01c3ab5979 update embedded command line help summary string for new feature 2018-10-19 16:49:06 -04:00
709013be5a harden code against buffer overflows 2018-10-19 16:48:37 -04:00
db32373b32 fix some typos caused by trusting emacs' smart case-preserving replace too much 2018-10-19 16:11:13 -04:00
9d7c4ac5f2 add depreacted kspace style 2018-10-19 16:01:26 -04:00
0ec94b2ad6 replace non-ASCII character 2018-10-19 16:01:13 -04:00
83c830fd8a port kspace refactor to GPU and KOKKOS package 2018-10-19 15:47:00 -04:00
3a4bef351c refactor kspace style in USER-SCAFACOS and fix uninitialized handle bug 2018-10-19 15:32:29 -04:00
da84138475 correct scafacos input example 2018-10-19 15:31:53 -04:00
2f52eee6bf kspace refactor compiles for KSPACE and USER-OMP 2018-10-19 15:11:37 -04:00
80e0dddae0 use min_post_force() method to hook fix halt into minimization 2018-10-19 14:08:25 -04:00
1c994bda46 corrections to fix neb doc page 2018-10-19 09:53:19 -06:00
f5206d2f7b more one-liner in pair_style doc page 2018-10-19 09:53:19 -06:00
9bca5ae607 added one-line pair descriptions 2018-10-19 09:53:19 -06:00
d1f260a765 undo changes to PRD doc from another branch 2018-10-19 09:53:19 -06:00
36a1ca7e72 updates some one-line style defs 2018-10-19 09:53:19 -06:00
5f1c77ced2 tweaks to USER-PTM package doc 2018-10-19 09:53:18 -06:00
dc89bdd924 more changes augmenting lists with USER styles and to core/shell doc pages 2018-10-19 09:53:18 -06:00
a979c6eeec updating files that have lists of command styles 2018-10-19 09:53:18 -06:00
cc6f1be82d first attempt to port fix halt to minimizations 2018-10-19 07:26:49 -04:00
9090fd0255 propagate the kspace change to a the first few kspace styles 2018-10-18 16:31:17 -04:00
7deb1df2b6 split kspace style constructor into plain constructor and settings() method 2018-10-18 16:30:45 -04:00
d9dd80b368 added -restart2dump command-line option 2018-10-18 14:24:48 -06:00
4015b36a1a Merge pull request #1161 from lammps/create-atoms-single
bug fix for create_atoms single remap and triclinic
2018-10-18 13:41:28 -04:00
dcde84eb53 bug fix for create_atoms single remap and triclinic 2018-10-18 11:22:51 -06:00
7bb5821baf add deprecated dump and region styles 2018-10-17 18:13:12 -04:00
2b0e474729 implement deprecated styles for bond, angle, dihedral, and improper 2018-10-17 16:26:20 -04:00
65ebbdada3 add DEPRECATED compute style 2018-10-17 16:05:10 -04:00
b71f530bd0 make default style name for deprecated styles uppercase, so it is considered internal
also consolidate the writeout message across styles into a single convenience function
2018-10-17 16:04:52 -04:00
0ec9b9a71a Merge pull request #1160 from akohlmey/user-ptm-portability
Make USER-PTM compile with MinGW64 for Windows
2018-10-16 14:52:26 -04:00
2273604533 resolve portability issues to windows w.r.t. fixed width integer types 2018-10-16 13:49:06 -04:00
6e99b3d8ff Merge pull request #1159 from wmbrownIntel/user-intel-sf-hybrid
Fix to allow suffix and pair hybrid to work together with USER-INTEL.
2018-10-16 06:09:58 -04:00
bea0a3091d Fix to allow suffix and pair hybrid to work together with USER-INTEL. 2018-10-15 10:25:39 -07:00
7968d2ed22 Merge pull request #1155 from athomps/sna-atom-leakfix2
Fixed a segfault introduced by memory-leak fix (#1125)
2018-10-12 13:01:15 -04:00
382e91cf5b Merge pull request #1156 from wmbrownIntel/user-intel-hybrid
Adding hybrid support to USER-INTEL package + EAM/intel bug fix
2018-10-12 12:35:36 -04:00
ce63a22783 Merge pull request #1157 from wmbrownIntel/user-intel-makefiles
Changes to intel Makefiles to make use of MKL consistent.
2018-10-12 12:32:28 -04:00
00c75ecb74 Merge pull request #988 from valleymouth/granular-kokkos
Kokkos port for GRANULAR
2018-10-12 09:04:36 -06:00
8224c89f93 Revert size_velocity change in atom_vec_dpd_kokkos 2018-10-11 16:38:44 -06:00
a223338b47 Fix hang with Kokkos and USER-DPD examples 2018-10-11 16:32:44 -06:00
8eb74d8fb3 Add missing Kokkos pack/unpack comm vel functions 2018-10-11 13:21:44 -06:00
e5c6b6987a Merge branch 'master' of github.com:lammps/lammps into granular-kokkos 2018-10-11 13:14:25 -06:00
8cbee78725 Changes to intel Makefiles to make use of MKL consistent. 2018-10-11 05:46:40 -07:00
c37deebffa Adding full hybrid support to USER-INTEL package and fixing bug with EAM parameter initialization. 2018-10-11 05:12:00 -07:00
c142288eb3 Fixed a segfault introduced by memory-leak fix 2018-10-10 17:24:14 -06:00
7faa48b4c3 Merge pull request #1154 from stanmoore1/small_fixes
Small fixes
2018-10-10 23:05:21 +02:00
a1266a1a1e Fix compile error with copysign function 2018-10-10 14:19:23 -06:00
7cce002cf9 Makefile fix from the mailing list 2018-10-10 14:18:24 -06:00
2def00d4c9 Add missing files to .gitignore 2018-10-10 14:18:00 -06:00
3d0722b974 Merge branch 'master' of github.com:lammps/lammps into granular-kokkos 2018-10-10 10:43:54 -06:00
747f72aca2 Merge branch 'granular-kokkos' of https://github.com/valleymouth/lammps into granular-kokkos 2018-10-10 09:53:15 +01:00
1b76e14224 Merge pull request #1151 from akohlmey/next-patch-release
update version number for next patch release
2018-10-10 02:20:50 +02:00
9a0c02a845 Merge pull request #1150 from mkanski/compute_pair_multiple_pstyles
Extend compute pair to handle multiple instances of a sub-style in pair style hybrid
2018-10-10 00:48:52 +02:00
70bee26641 update version number 2018-10-09 12:59:12 -04:00
7416e113ff Merge pull request #1147 from akohlmey/fix-omp-intel-neighbor
Resolve neighbor list request conflict with USER-INTEL and USER-OMP
2018-10-09 18:40:41 +02:00
791024586e Merge pull request #1131 from ckadding/master
Add compute_pressure_cylinder to USER-MISC package
2018-10-09 18:40:02 +02:00
962fd1df90 Merge pull request #1146 from jrgissing/maxspecial_restarts
put atom->maxspecial in restarts
2018-10-09 17:55:24 +02:00
dc6123fafc fix stupid typo 2018-10-08 17:26:21 +02:00
3c41295e70 change implementation to be consistent with pair_coeff and remain backward compatible 2018-10-08 17:23:22 +02:00
e7ca200e97 Merge pull request #1149 from akohlmey/doc-adjust-bugfix
correct typo in USER-SMD introduced by doc-adjust PR
2018-10-05 22:21:33 +02:00
8b944e06f0 Small changes in doc file 2018-10-05 21:08:18 +02:00
8960774b16 correct typo in USER-SMD introduced by doc-adjust PR 2018-10-05 14:55:18 -04:00
1e9778b81e Extend compute pair to handle multiple instances of a given pair style 2018-10-05 20:34:12 +02:00
d805796cd7 Merge pull request #1133 from lammps/doc-adjust
Multiple documentation adjustments and corrections from Steve and Axel
2018-10-05 20:20:18 +02:00
0c1ff5ac3e Fixing issues with AtomVecSphereKokkos not correctly handling cases with varying and constant radius. 2018-10-05 17:10:31 +01:00
43ae9656d7 add a "deprecated" command style for flagging future removed commands 2018-10-05 17:23:09 +02:00
61e2cd3f61 avoid requesting threaded neighbor lists that are both threaded via USER-OMP and USER-INTEL 2018-10-05 16:03:11 +02:00
e024658cec Merge branch 'doc_cleanup' of https://github.com/jrgissing/lammps into maxspecial_restarts 2018-10-05 14:15:39 +02:00
17853aef20 modify restart changes, so it stays backward compatible and does not result in unexpected behavior when reading old restarts. also use consistent naming conventions for enum entries 2018-10-05 09:47:47 +02:00
7f8302b65b replace extra_special with maxspecial in restarts 2018-10-04 22:08:43 -06:00
fd20eb93b2 remove listing of extinct special_bonds 'extra' keyword 2018-10-04 21:30:34 -06:00
b16a83cddc Merge pull request #28 from lammps/master
rebase
2018-10-04 21:26:22 -06:00
b02d3b1b94 cosmetic change 2018-10-04 12:24:46 +02:00
a1a9f34c18 pair style deprecated now functional and compatible with hybrid pair styles 2018-10-04 12:18:28 +02:00
c3abf13af1 don't allow hybrid/overlay as hybrid substyle as well 2018-10-04 12:18:01 +02:00
cdea8968c2 Merge pull request #1143 from athomps/semigrand_issue_1139
Fixed sign error on mu for semigrand variant of fix atom/swap
2018-10-03 07:42:56 +02:00
9e9b97231c Fixed sign error on mu for semigrand variant 2018-10-02 16:56:27 -06:00
a549752764 reduce compiler warnings and some more whitespace adjustments 2018-10-02 15:18:15 -04:00
590ab1661e convert more system headers to c++ style 2018-10-02 15:17:11 -04:00
08b135ce6b Apply uniform LAMMPS formatting 2018-10-02 14:54:09 -04:00
a6ba55080f Use MathConst namespace 2018-10-02 14:33:49 -04:00
e3b80e734a remove trailing whitespace 2018-10-02 12:37:13 -04:00
177044cd07 Merge pull request #1142 from stanmoore1/kk_eam
Fix bug in Kokkos EAM
2018-10-02 10:28:51 -06:00
ff7449b29a ensure, that we have no division by zero and add an upper limit for bins 2018-10-02 12:27:05 -04:00
13d3903e8d integrate compute pressure/cylinder into build and README 2018-10-02 11:56:29 -04:00
f81836d605 reformat compute pressure/cylinder docs and integrate it into the manual 2018-10-02 11:51:23 -04:00
57b2f60556 Fix bug in Kokkos EAM 2018-10-02 09:45:13 -06:00
c7c0defa77 Insert a comma 2018-10-02 10:45:43 -04:00
ac658a17fc Update compute_pressure_cylinder.cpp 2018-10-02 10:34:08 -04:00
b5a5270f4a fix typos in compute msd/chunk
as reported by @evoyiatzis the example is incorrect,
but also a mention of the compute a few lines above.
2018-10-02 16:29:18 +02:00
b481af51d6 add pair_style deprecated and some tweaks for fix style 2018-10-02 16:26:20 +02:00
69c3ff560e Clarify restrictions and output 2018-10-02 10:11:57 -04:00
af5ac6bcdf Add NULL pointers to constructor init 2018-10-02 09:55:37 -04:00
89c0655809 Add input validation 2018-10-02 09:46:53 -04:00
3a0cfc1d57 Modifying headers 2018-10-02 09:32:26 -04:00
dba8f9c62b Merge pull request #1137 from dilkins/fast-forward-langevin
Fast-forward Langevin functionality included in USER-MISC package
2018-10-02 14:19:37 +02:00
ca3a64ea3e fully integrate fix ffl in conventional build processing 2018-10-02 11:25:39 +02:00
4b4f7d6ee0 implement conventions for unique links in docs 2018-10-02 11:25:12 +02:00
66bfdd20d4 fully integrate fix ffl docs into the manual system 2018-10-02 11:24:45 +02:00
990a93f9d9 fix typo in example input 2018-10-02 10:58:28 +02:00
d5e71e7099 enumeration of flip types 2018-10-02 10:41:55 +02:00
14251948f3 LAMMPS coding conventions 2018-10-02 10:18:40 +02:00
799ffc58d9 C++ system headers included and enumeration of flip_int used;documentation corrected 2018-10-01 17:13:56 +02:00
a333fdac30 correct some documentation issues with the recently added USER-PTM package 2018-09-28 18:02:13 +02:00
ffbc33bea5 Merge branch 'master' into doc-adjust 2018-09-28 17:07:51 +02:00
12d2dd201a update description of RPM based LAMMPS packages with info from @junghans
this fixes #1135
2018-09-28 15:47:56 +02:00
497af2ebb9 document eam/cd/old 2018-09-28 13:44:42 +02:00
21c59d4cf0 Fast-forward Langevin functionality included 2018-09-28 12:46:11 +02:00
4fe23c3854 Merge pull request #1120 from pmla/polyhedral-template-matching
Added compute for Polyhedral Template Matching
2018-09-28 12:26:06 +02:00
1de76c33fd Merge pull request #1122 from oywg11/master
collecting small changes for potential #839
2018-09-28 12:22:29 +02:00
2da999d864 cmake: prevent in-source build 2018-09-27 12:18:43 -06:00
e4d4f3a775 Merge pull request #1132 from martok/meam-init
Small fixes to MEAM/C
2018-09-27 19:40:05 +02:00
f58aa05e02 remove references to USER-OMP version of pair style nb3b/harmonic 2018-09-27 07:44:54 -04:00
9ae6cb5c4f add recently renamed file to purge list 2018-09-27 07:28:44 -04:00
f23b638d47 include USER-PTM into git management 2018-09-27 07:23:38 -04:00
e1627caf04 integrate compute ptm/atom and USER-PTM into the docs 2018-09-27 07:20:03 -04:00
5481e99331 remove broken USER-OMP pair style 2018-09-27 06:52:20 -04:00
91286ddb0e remove references to fix ave/spatial and ave/spatial/sphere 2018-09-27 06:51:30 -04:00
cf0f3b6b61 Update manual for renamed or removed files 2018-09-27 06:23:59 -04:00
8e7ddff6dc reverse order in which pdf files are created.
Creating Developer.pdf first and Manual.pdf later makes
any warnings from the latter step, e.g. about missing
files in doc/src/lammps.book more visible.
2018-09-27 06:15:03 -04:00
7987f3319e remove outdated references to linux rpms on rpm.lammps.org 2018-09-27 06:05:26 -04:00
b07adbf98c Update installing/running LAMMPS on ubuntu for daily binary 2018-09-27 05:49:43 -04:00
a9b8a6521d more mis-matches between doc pages and src files 2018-09-25 13:18:54 -06:00
5a6226caa5 jive src headers with doc page entries and example scripts 2018-09-25 10:50:43 -06:00
37fe03c0ab escape backslash in bibtex string for correct citeme output 2018-09-25 09:19:09 -04:00
93e56c113a add USER-PTM to build system 2018-09-25 09:18:11 -04:00
e5ddc909ad Fully zero-init MEAM data structure 2018-09-25 14:19:26 +02:00
aefdcd0f94 Silence some warnings 2018-09-25 11:14:42 +02:00
36c5fb2ec6 update formatting 2018-09-24 10:37:52 -04:00
918030bf1c Merge branch 'master' of https://github.com/oywg11/lammps into ilp-update 2018-09-24 10:29:08 -04:00
de010551cf Merge pull request #1128 from akohlmey/complain-reax-meam
Warn more loudly about REAX and MEAM going away soon
2018-09-23 10:35:28 -04:00
6e546ef5af added ptm namespace 2018-09-20 14:20:58 -04:00
dd39bc44ee Add compute_pressure_cylinder documentation 2018-09-20 09:16:58 -04:00
5aeba421bb Add compute_pressure_cylinder .cpp and .h files 2018-09-20 09:15:43 -04:00
37201beda5 Fixed folder structure 2018-09-20 00:04:07 -04:00
c705e8d0e6 renamed files for LAMMPS build system compatibility 2018-09-19 20:46:48 -04:00
cda89283aa warn more loudly about REAX and MEAM going away soon 2018-09-18 22:13:17 -04:00
c2758a0b55 Merge pull request #1126 from lammps/patch-18-sep-2018
patch 18Sep18
2018-09-18 21:50:30 -04:00
9c58834af2 Merge pull request #1127 from akohlmey/reax-bonds-typo
fix typo in gzip support for fix reax/bonds
2018-09-18 18:05:57 -04:00
4bfac61b1a fix typo in gzip support for fix reax/bonds 2018-09-18 17:41:02 -04:00
8dff5fd5d7 patch 18Sep18 2018-09-18 17:24:10 -04:00
e9ed95c2db Merge pull request #1108 from akohlmey/fix-sprintf-buffer-overflows
Avoid more buffer overflows due to using snprintf() on fixed size buffers
2018-09-18 16:57:10 -04:00
33e33048bf Merge pull request #1125 from athomps/sna-atom-leakfix
The sna*/atom computes were not destroying SNA objects. Fixed.
2018-09-18 15:50:17 -04:00
d753c51c45 The sna*/atom computes were not destroying SNA objects. Fixed. 2018-09-17 19:44:32 -06:00
e2293cc7df Merge pull request #1119 from lammps/doc-clarify
doc page clarifications
2018-09-17 06:10:25 -04:00
0c287a55cd Merge pull request #1092 from RomainVermorel/master
New stress/mop and stress/mop/profile computes for USER-MISC
2018-09-17 05:16:42 -04:00
5f6b5c5400 fix typo 2018-09-17 05:11:59 -04:00
494b149272 fix typo 2018-09-17 05:10:56 -04:00
39ee7876c4 fix typo 2018-09-17 05:09:23 -04:00
8fa80081df fix typo 2018-09-17 05:08:22 -04:00
e14db00d52 doc link adjustments 2018-09-14 17:31:33 -06:00
7054800932 Merge branch 'master' into master 2018-09-12 22:13:43 +03:00
01beaf38a1 small modifications for potential #839 2018-09-12 21:51:57 +03:00
83b6d6ae96 small modifications of potential #839 2018-09-12 17:47:16 +03:00
6ae4bdead5 Merge pull request #1089 from lammps/spread
2 new computes: chunk/spread/atom and reduce/chunk
2018-09-11 21:21:02 -04:00
1f5885fc45 Merge pull request #1099 from jrgissing/bond/react-efficient-competing_reactions
bond/react: efficient competing reactions
2018-09-11 21:18:41 -04:00
92b508f14c Merge pull request #1097 from lammps/localvars
add variable option to compute bond/angle/dihedral local
2018-09-11 21:18:15 -04:00
b7c75b6c4e Added compute for Polyhedral Template Matching 2018-09-11 16:41:44 -04:00
c3ece2f086 typo in fix relax/box doc page 2018-09-11 12:44:35 -06:00
7f328d3f79 cite a good book on SLLOD thermostatting for molecular systems 2018-09-11 11:49:46 -06:00
983e8bb110 doc page clarifications 2018-09-11 11:36:37 -06:00
0305cca1df make certain that *_freq flags are initialized. use -1 instead of 0 to avoid division by zero 2018-09-10 22:47:45 -04:00
3d2c731709 avoid class initialization order warnings 2018-09-10 22:32:56 -04:00
02b653c0ce correct end of itemized list to be compatible with txt2rst conversion 2018-09-10 22:22:42 -04:00
a33f45f176 Merge pull request #1112 from akohlmey/rename-cdeam-omp
Rename files for pair style eam/cd/omp in USER-OMP
2018-09-10 15:16:10 -04:00
a903e64947 Merge pull request #1114 from junghans/cmake_eigen3
cmake: fix Eigen3 detection
2018-09-10 10:45:20 -04:00
46b87518b8 cmake: use NO_MODULE for Eigen3 2018-09-10 00:35:55 -04:00
45682f8695 Merge pull request #1115 from junghans/cmake_globfix
cmake: fix globbing of emacs files
2018-09-09 22:15:44 -04:00
2faa34b2be Merge pull request #1105 from rbberger/truncate-file-path
Avoid buffer overflow during errors with long filenames
2018-09-09 01:30:14 -04:00
075d366051 Merge pull request #1116 from akohlmey/correct-doc-build
Correct multiple issues in manual build
2018-09-09 01:28:29 -04:00
3b073de357 make it less likely to have people get confused by Eigen3_DIR 2018-09-09 01:21:37 -04:00
6f379f54d6 Merge pull request #1117 from lammps/doc-tweak
small doc page changes, format and content on doc page tarballs
2018-09-07 23:48:46 -04:00
e325c78628 Merge pull request #1101 from Pakketeretet2/bugfix-pair-morse-smooth-linear
Bugfix pair morse smooth linear
2018-09-07 23:38:16 -04:00
b488f1072e recent package links 2018-09-07 14:22:38 -06:00
0384ef8967 more tweaks to client/server doc pages 2018-09-07 14:00:39 -06:00
25907c856e small doc page changes, format and content on doc page tarballs 2018-09-07 09:56:03 -06:00
861a7acdf0 cmake: fix globbing in some more places 2018-09-07 06:40:06 -06:00
f7cdf2a7b8 Merge pull request #26 from lammps/master
rebase
2018-09-06 21:37:52 -06:00
aea148a86a Merge pull request #1100 from rbberger/info-command-refactoring
Avoid unnecessary sorting in print_columns
2018-09-06 22:55:56 -04:00
dd64c063cf various fixes for the manual to address breakage from merging MESSAGE and USER-SCAFACOS packages 2018-09-06 22:28:20 -04:00
44fcdc4024 update reference examples with versions that do not vary by MPI rank count 2018-09-06 21:20:47 -04:00
947f574503 Merge branch 'master' into compute_mop
# Conflicts:
#	cmake/CMakeLists.txt
2018-09-06 21:13:42 -04:00
5c4434b283 Merge pull request #1113 from akohlmey/more-codeowners
Expand the list of code owners for more automated review requests
2018-09-06 20:59:07 -04:00
8f8aee65d2 cmake: fix globbing of emacs files
Done by: sed -i '/GLOB/s@/\*\.@/[^.]*.@g' CMakeLists.txt
2018-09-06 14:52:49 -06:00
d7b00f86f8 cmake: fix Eigen3 detection
For some reason FindEigen3.cmake defines all cap. variables, i.e.
Eigen3_FOUND -> EIGEN3_FOUND
2018-09-06 14:18:31 -06:00
efd582fb21 update list of code owners for automatic review requests. started assigning core files 2018-09-06 13:13:20 -04:00
b915716b60 fix inconsistency resulting from error in auto-replace macro 2018-09-06 12:27:10 -04:00
b3079f3aec rename files and classes for pair style eam/cd/omp to follow the rename of the non-threaded classes 2018-09-06 12:07:25 -04:00
84657f1531 final pass at sprintf() buffer overflow prevention. also fix typo in previous commit 2018-09-06 12:00:04 -04:00
db510af582 more fixes for potential buffer overflows by using snprintf() instead of sprintf() 2018-09-06 11:32:44 -04:00
9c27548a5c more replacing of sprintf() with snprintf() 2018-09-06 10:45:48 -04:00
4d52cb9245 more buffer overflow avoiding through using snprintf() 2018-09-06 09:57:43 -04:00
fbc1c1cfdd replace fixed buffer sprintf() with straight fprintf() 2018-09-06 09:57:10 -04:00
ca04e8f31c use snprintf() in a bunch of cases to avoid overflowing fixed size buffers with unchecked strings 2018-09-06 02:57:53 -04:00
ba1c5d3191 Avoid buffer overflow during errors with long filenames 2018-09-05 21:39:09 -04:00
0b951840f2 Merge pull request #1103 from rbberger/cmake-fix-user-omp
cmake: add missing fix_omp.h and fix_omp.cpp to compilation
2018-09-05 21:27:24 -04:00
95c3d2fc8e Merge pull request #1051 from stanmoore1/data_dup
Add data duplication option to the KOKKOS package
2018-09-05 17:09:09 -06:00
ad498811b1 cmake: add missing fix_omp.h and fix_omp.cpp to compilation 2018-09-05 16:04:35 -04:00
5003354fba Replaced a tab with whitespace. 2018-09-05 11:42:48 -04:00
9b38a5b359 Replaced gpu Makefile with the one from upstream so as not to delete it. 2018-09-05 11:39:41 -04:00
1c8feed69f Removed gpu makefile from wrong branch. 2018-09-05 11:38:04 -04:00
84de0d38ea Replaced files with those from upstream. 2018-09-05 11:34:07 -04:00
c192236a7e Commit before switching to old master. 2018-09-05 11:28:06 -04:00
779f1bd0b1 Fixes a bug in pair_morse_smooth_linear where the cutoff was not properly initialized. 2018-09-05 11:27:10 -04:00
0c92c22755 moved contents of USER-MOP package to USER-MISC as suggested by @sjplimp 2018-09-05 10:56:12 -04:00
4a5e28af81 Avoid unnecessary sorting in print_columns
std::map is a sorted associative container. We don't need to
first copy it into a vector and sort that one.
print_columns has been refactored as a template function and
makes use of this property.
2018-09-05 10:35:47 -04:00
ae7b18fb77 only one call to extract needed 2018-09-05 00:11:50 -06:00
efd81a2854 Merge branch 'master' into bond/react-efficient-competing_reactions 2018-09-04 22:34:04 -06:00
a5f7b418de bond/react: efficient competing reactions 2018-09-04 22:06:49 -06:00
bcecc0389e add variable option to compute bond/angle/dihedral local 2018-09-04 14:48:44 -06:00
cb4ffaf95c update docs and references for name changes in USER-MOP package, remove obsoleted files 2018-09-04 08:42:32 -04:00
a797a0d193 changed computes names to stress/mop and stress/mop/profile 2018-09-04 14:02:19 +02:00
0af80bbbe0 Merge pull request #24 from lammps/master
rebase
2018-09-03 21:44:22 -06:00
f6f4b58167 add parallel reference output 2018-09-03 23:42:52 -04:00
7b423c6d4b integrate USER-MOP package into build and documentat system. apply latest LAMMPS programming style conventions 2018-09-03 23:37:25 -04:00
ba4ff7744b new USER-MOP package submitted 2018-09-03 16:26:36 +02:00
a989d04d09 think this flag should not be set by this fix 2018-08-31 14:17:36 -06:00
e3ce702eec doc adjust 2018-08-31 13:53:02 -06:00
c4c5f9a32e 2 new computes: chunk/spread/atom and reduce/chunk 2018-08-31 13:44:49 -06:00
3f07adb765 Merge branch 'master' of https://www.github.com/lammps/lammps into port-enforce2d-kokkos 2018-08-30 11:53:05 -04:00
cca1e0a399 Merge branch 'master' into granular-kokkos 2018-08-20 22:02:41 -04:00
f8e6e4275a Merge branch 'master' of https://www.github.com/lammps/lammps into port-enforce2d-kokkos 2018-08-20 15:12:11 -04:00
e0fc050bf4 Changes to linux makefile. 2018-08-20 15:12:05 -04:00
9765a9a430 Implementing forward/border comm in Kokkos. 2018-08-13 16:03:23 +01:00
165fa01a97 Cleanup 2018-08-10 14:23:51 -06:00
8f665a5a0f Update Kokkos docs for data duplication 2018-08-10 13:46:03 -06:00
6f1986a8f1 Small tweaks to Kokkos EAM 2018-08-10 13:10:02 -06:00
eb4d586493 Remove duplicate if test in fix_qeq_reax_kokkos 2018-08-10 12:53:27 -06:00
9f058f19bc Deallocate duplicated memory 2018-08-10 12:49:02 -06:00
44d7c79fdc Merge branch 'master' of https://github.com/lammps/lammps into reax_dup 2018-08-10 12:33:28 -06:00
12ecc45b6a Add data duplication to pair_snap_kokkos 2018-08-10 12:30:58 -06:00
ebc0abbb8d Add data duplication to pair_eam_kokkos variants 2018-08-10 12:30:37 -06:00
faa21a0591 Add data duplication to pair_sw_kokkos 2018-08-10 12:30:17 -06:00
d9fb37e25e Add data duplication to pair_tersoff_kokkos and variants 2018-08-10 12:30:03 -06:00
120fdbb9fc Add data duplication to pair_eam_kokkos 2018-08-10 10:53:22 -06:00
b0183de7ca Merge branch 'master' into reax_dup 2018-08-09 17:11:26 -06:00
64cd37b6ed Merge branch 'master' of https://www.github.com/lammps/lammps into port-enforce2d-kokkos 2018-08-08 11:56:28 -04:00
bf2a942f36 Merge branch 'master' into reax_dup 2018-08-07 13:18:45 -06:00
ba693a74be Add contribute method to pair_table_kokkos 2018-08-07 12:27:32 -06:00
c1dffe40dc Merge branch 'master' of https://www.github.com/lammps/lammps into port-enforce2d-kokkos 2018-08-06 10:25:22 -04:00
446a8da8e7 Commit before merge. 2018-08-06 10:25:12 -04:00
cdd85b0749 Merge branch 'reax_dup' of ssh://github.com/stanmoore1/lammps into reax_dup 2018-08-03 07:37:49 -06:00
3e962c9729 Update from master 2018-08-03 07:37:18 -06:00
5412204ff7 Merge branch 'master' into granular-kokkos 2018-08-02 10:11:50 +02:00
591e782415 Optimizing PairGranHookeHistoryKokkos to be less divergent. 2018-07-19 17:08:44 +01:00
406aaf011f Improving global memory access pattern for firstflag and firstvalue in FixNeighHistoryKokkos. 2018-07-16 15:30:24 +01:00
c442166ded Tidied up example directory for PLUMED 2018-07-12 16:22:40 +01:00
6d9face1ec Added documentation describing PLUMED package installation 2018-07-12 12:26:09 +01:00
4734bc09dc Added descriptions of static linking of PLUMED to README files 2018-07-11 21:56:08 +01:00
56c2127127 Merge branch 'granular-kokkos' of github.com:valleymouth/lammps into granular-kokkos 2018-07-11 12:03:57 -06:00
b5816f2637 Update docs for Kokkos version of GRANULAR package 2018-07-11 12:03:34 -06:00
492e945b5a Added options to link plumed statically 2018-07-11 16:39:52 +01:00
0d1e55c99d Removing unnecessary calls to sync/modified in AtomVecSphereKokkos. 2018-07-11 11:06:16 -04:00
c83b5ec226 Prevent error when Kokkos debug mode turned on 2018-07-10 19:49:41 -06:00
687a4427da Fix runtime error in pair_dpd_fdt_energy_kokkos due to rmass change 2018-07-10 12:15:08 -06:00
af0eb52410 Error out if using fix pour with the KOKKOS package 2018-07-10 10:21:42 -06:00
a49f946f2f Add missing modify in atom_vec_sphere_kokkos 2018-07-10 10:04:13 -06:00
8c3cbad7ae Fix runtime error in fix_nve_kokkos 2018-07-10 09:15:24 -06:00
4d5635a3c4 Fixed virial contribution from PLUMED 2018-07-10 16:01:45 +01:00
ca8b109a1c Fix issues with rmass in KOKKOS package 2018-07-10 08:59:06 -06:00
55980294f1 Fix issues in atom_vec_sphere_kokkos 2018-07-09 18:47:17 -06:00
c84ae38e34 Fixed installation scripts for PLUMED 2018-07-09 17:27:41 +01:00
43cdca80f2 Fixed passing of charges 2018-07-09 15:06:10 +01:00
ee98daeba5 Fix bug in atom_vec_sphere_kokkos 2018-07-06 16:47:55 -06:00
2cd95d1a99 Fix misnamed variable in comm_kokkos 2018-07-06 15:47:14 -06:00
13d562e969 Removed wrong which variable 2018-07-06 12:06:09 -06:00
228caa3fab Remove randomread from radius to prevent Kokkos runtime error when radius isn't defined 2018-07-06 11:59:25 -06:00
64fb7674b1 Fix compile warning in fix_freeze_kokkos 2018-07-06 11:58:42 -06:00
cce0755ee9 Fix memory free issue in fix_neigh_history_kokkos 2018-07-06 10:08:21 -06:00
67ed11a960 Allow Kokkos version of fix gravity in fix pour, including kk/device and kk/host suffixes 2018-07-06 09:52:41 -06:00
acb0436057 Allow Kokkos version of fix gravity in fix pour 2018-07-06 09:31:48 -06:00
2f3343b7ed Fixing dependencies with GRANULAR. 2018-07-06 05:24:26 -04:00
13efc1b76d Attempt to fix compilation issue with kokkos_omp. 2018-07-05 18:32:19 -04:00
dc93d4ceea Added virial computation to PairGranHookeHistoryKokkos. 2018-07-05 06:03:27 -04:00
a6df61a637 Making ComputeTempKokkos compatible with rmass in device memory. 2018-07-03 12:05:21 -04:00
f394ed94f3 dump vtk also works with VTK version 8. 2018-07-03 11:33:55 -04:00
11a5ed0e03 Porting fix freeze to Kokkos. 2018-07-03 11:29:13 -04:00
a365246e3a Porting fix gravity to Kokkos. 2018-07-03 11:21:54 -04:00
8ebe38474d Porting fix nve/sphere to Kokkos. 2018-07-03 11:13:27 -04:00
0a5b027bac Porting pair gran/hooke/history to Kokkos. 2018-07-03 11:10:27 -04:00
7f5a83cb1d Added first go at checks on PLUMED interface to LAMMPS 2018-07-02 17:04:19 +01:00
b299bfa821 Started adding tests on PLUMED interface 2018-07-02 13:58:38 +01:00
2c5f2a6683 Added running example of PLUMED + LAMMPS
Not sure if this has been done correctly.  I add both the input and the output
2018-07-02 10:22:23 +01:00
9b44529591 Added an example 2018-06-29 17:46:51 +01:00
f5642ac292 Removed reference to local version of PLUMED from interface 2018-06-29 16:28:53 +01:00
ef0f9c0451 First attempt at permanent PLUMED interface 2018-06-29 12:26:19 +01:00
30f8bb059f Merge branch 'reax_dup' of github.com:stanmoore1/lammps into reax_dup 2018-04-02 12:11:22 -06:00
52254fe155 Fix issue in fix_qeq_reax_kokkos 2018-04-02 12:10:30 -06:00
d8e0f48864 Merge branch 'master' into reax_dup 2018-04-02 10:55:09 -06:00
385e1e5adf Fix compile error with CUDA 2018-03-22 12:28:21 -06:00
28b894a1d7 Remove unnecessary semicolon 2018-03-22 12:09:04 -06:00
f72d38e0c3 Merge branch 'master' into reax_dup 2018-03-22 10:03:06 -06:00
2dcee75ae4 Add data duplication to pair_kokkos.h 2018-03-22 10:01:50 -06:00
968587ac1e Merge from master 2018-03-21 17:24:35 -06:00
6dd8efd0b4 Add if statements 2018-03-21 17:20:45 -06:00
ed494b295f WIP 2018-03-01 11:52:39 -07:00
dbc308f352 Add warning 2018-03-01 10:06:43 -07:00
4ec99edcc6 Merge branch 'master' of github.com:stanmoore1/lammps into reax_dup 2018-02-27 13:10:17 -07:00
c2477ce522 Merge branch 'reax_dup' of ssh://github.com/stanmoore1/lammps into reax_dup 2018-02-12 09:00:21 -07:00
f10c988903 Merge branch 'master' into reax_dup 2018-02-12 08:59:57 -07:00
81331e2a34 Better load balance fix_qeq_reax_kokkos for half neigh list 2017-12-21 11:07:06 -07:00
dbbfacc598 Fix atomic issues 2017-12-20 16:13:28 -07:00
2fc8da08f4 Merge branch 'develop' into reax_dup 2017-12-20 14:32:05 -07:00
5886cadeef Fix compiler warnings in atom_vec_hybrid_kokkos 2017-12-18 14:12:58 -07:00
2b99a26b47 Fix issue in fix_qeq_reax_kokkos, can't call child function from base constructor 2017-12-18 13:57:56 -07:00
7156d49b8d Merge branch 'pr-750' into develop 2017-12-18 11:13:17 -07:00
dce6c9edce Merge branch 'pr-747' into develop 2017-12-18 11:13:15 -07:00
b0f9ae049d Merge branch 'pr-725' into develop 2017-12-18 11:13:11 -07:00
a5790ef68f Rename to ScatterView 2017-12-11 08:38:54 -07:00
8e68015a6f Merge branch 'reax_dup' of github.com:stanmoore1/lammps into reax_dup 2017-12-11 08:32:20 -07:00
95aec46b99 Merge remote-tracking branch 'origin/master' into reax_dup 2017-12-11 08:30:27 -07:00
8a9a7f4e50 Fix issues 2017-12-06 14:06:35 -07:00
d2da1f5797 Template out atomics for full neighbor list 2017-12-06 09:41:29 -07:00
9f08cec07a Merge branch 'improve_reax' of ssh://github.com/stanmoore1/lammps into reax_dup 2017-11-30 09:48:15 -07:00
ee9ba99cde Fix some bugs in pair_reaxc_kokkos 2017-11-29 11:11:20 -07:00
41202c3627 Turn atomics back on for some views in pair_reaxc_kokkos 2017-11-28 16:28:17 -07:00
54f2493018 Added ReductionView to Kokkos ReaxFF 2017-11-28 14:53:44 -07:00
1004 changed files with 72290 additions and 5962 deletions

69
.github/CODEOWNERS vendored
View File

@ -17,6 +17,7 @@ src/GPU/* @ndtrung81
src/KOKKOS/* @stanmoore1
src/KIM/* @ellio167
src/LATTE/* @cnegre
src/MESSAGE/* @sjplimp
src/SPIN/* @julient31
src/USER-CGDNA/* @ohenrich
src/USER-CGSDK/* @akohlmey
@ -28,20 +29,88 @@ src/USER-MEAMC/* @martok
src/USER-MOFFF/* @hheenen
src/USER-MOLFILE/* @akohlmey
src/USER-NETCDF/* @pastewka
src/USER-PLUMED/* @gtribello
src/USER-PHONON/* @lingtikong
src/USER-PTM/* @pmla
src/USER-OMP/* @akohlmey
src/USER-QMMM/* @akohlmey
src/USER-REAXC/* @hasanmetin
src/USER-SCAFACOS/* @rhalver
src/USER-TALLY/* @akohlmey
src/USER-UEF/* @danicholson
src/USER-VTK/* @rbberger
# individual files in packages
src/GPU/pair_vashishta_gpu.* @andeplane
src/KOKKOS/pair_vashishta_kokkos.* @andeplane
src/MANYBODY/pair_vashishta_table.* @andeplane
src/MANYBODY/pair_atm.* @sergeylishchuk
src/USER-MISC/fix_bond_react.* @jrgissing
src/USER-MISC/*_grem.* @dstelter92
src/USER-MISC/compute_stress_mop*.* @RomainVermorel
# core LAMMPS classes
src/lammps.* @sjplimp
src/pointers.h @sjplimp
src/atom.* @sjplimp
src/atom_vec.* @sjplimp
src/angle.* @sjplimp
src/bond.* @sjplimp
src/comm*.* @sjplimp
src/compute.* @sjplimp
src/dihedral.* @sjplimp
src/domain.* @sjplimp
src/dump*.* @sjplimp
src/error.* @sjplimp
src/finish.* @sjplimp
src/fix.* @sjplimp
src/force.* @sjplimp
src/group.* @sjplimp
src/improper.* @sjplimp
src/kspace.* @sjplimp
src/lmptyp.h @sjplimp
src/library.* @sjplimp
src/main.cpp @sjplimp
src/memory.* @sjplimp
src/modify.* @sjplimp
src/molecule.* @sjplimp
src/my_page.h @sjplimp
src/my_pool_chunk.h @sjplimp
src/npair*.* @sjplimp
src/ntopo*.* @sjplimp
src/nstencil*.* @sjplimp
src/neighbor.* @sjplimp
src/nbin*.* @sjplimp
src/neigh_*.* @sjplimp
src/output.* @sjplimp
src/pair.* @sjplimp
src/rcb.* @sjplimp
src/random_*.* @sjplimp
src/region*.* @sjplimp
src/rcb.* @sjplimp
src/read*.* @sjplimp
src/rerun.* @sjplimp
src/run.* @sjplimp
src/respa.* @sjplimp
src/set.* @sjplimp
src/special.* @sjplimp
src/suffix.h @sjplimp
src/thermo.* @sjplimp
src/universe.* @sjplimp
src/update.* @sjplimp
src/variable.* @sjplimp
src/verlet.* @sjplimp
src/velocity.* @sjplimp
src/write_data.* @sjplimp
src/write_restart.* @sjplimp
# overrides for specific files
src/dump_movie.* @akohlmey
src/exceptions.h @rbberger
src/fix_nh.* @athomps
src/info.* @akohlmey @rbberger
src/timer.* @akohlmey
# tools
tools/msi2lmp/* @akohlmey

View File

@ -6,7 +6,7 @@ The following is a set of guidelines as well as explanations of policies and wor
Thus please also have a look at:
* [The Section on submitting new features for inclusion in LAMMPS of the Manual](http://lammps.sandia.gov/doc/Section_modify.html#mod-15)
* [The LAMMPS GitHub Tutorial in the Manual](http://lammps.sandia.gov/doc/tutorial_github.html)
* [The LAMMPS GitHub Tutorial in the Manual](http://lammps.sandia.gov/doc/Howto_github.html)
## Table of Contents
@ -62,7 +62,7 @@ To be able to submit an issue on GitHub, you have to register for an account (fo
We encourage users to submit new features or modifications for LAMMPS to the core developers so they can be added to the LAMMPS distribution. The preferred way to manage and coordinate this is by submitting a pull request at the LAMMPS project on GitHub. For any larger modifications or programming project, you are encouraged to contact the LAMMPS developers ahead of time, in order to discuss implementation strategies and coding guidelines, that will make it easier to integrate your contribution and result in less work for everybody involved. You are also encouraged to search through the list of open issues on GitHub and submit a new issue for a planned feature, so you would not duplicate the work of others (and possibly get scooped by them) or have your work duplicated by others.
How quickly your contribution will be integrated depends largely on how much effort it will cause to integrate and test it, how much it requires changes to the core code base, and of how much interest it is to the larger LAMMPS community. Please see below for a checklist of typical requirements. Once you have prepared everything, see [this tutorial](http://lammps.sandia.gov/doc/tutorial_github.html)
How quickly your contribution will be integrated depends largely on how much effort it will cause to integrate and test it, how much it requires changes to the core code base, and of how much interest it is to the larger LAMMPS community. Please see below for a checklist of typical requirements. Once you have prepared everything, see [this tutorial](http://lammps.sandia.gov/doc/Howto_github.html)
for instructions on how to submit your changes or new files through a GitHub pull request
Here is a checklist of steps you need to follow to submit a single file or user package for our consideration. Following these steps will save both you and us time. See existing files in packages in the source directory for examples. If you are uncertain, please ask on the lammps-users mailing list.
@ -102,11 +102,11 @@ For bug reports, the next step is that one of the core LAMMPS developers will se
### Pull Requests
For submitting pull requests, there is a [detailed tutorial](http://lammps.sandia.gov/doc/tutorial_github.html) in the LAMMPS manual. Thus only a brief breakdown of the steps is presented here.
For submitting pull requests, there is a [detailed tutorial](http://lammps.sandia.gov/doc/Howto_github.html) in the LAMMPS manual. Thus only a brief breakdown of the steps is presented here. Please note, that the LAMMPS developers are still reviewing and trying to improve the process. If you are unsure about something, do not hesitate to post a question on the lammps-users mailing list or contact one fo the core LAMMPS developers.
Immediately after the submission, the LAMMPS continuing integration server at ci.lammps.org will download your submitted branch and perform a simple compilation test, i.e. will test whether your submitted code can be compiled under various conditions. It will also do a check on whether your included documentation translates cleanly. Whether these tests are successful or fail will be recorded. If a test fails, please inspect the corresponding output on the CI server and take the necessary steps, if needed, so that the code can compile cleanly again. The test will be re-run each the pull request is updated with a push to the remote branch on GitHub.
Next a LAMMPS core developer will self-assign and do an overall technical assessment of the submission. If you are not yet registered as a LAMMPS collaborator, you will receive an invitation for that.
You may also receive comments and suggestions on the overall submission or specific details. If permitted, additional changes may be pushed into your pull request branch or a pull request may be filed in your LAMMPS fork on GitHub to include those changes.
The LAMMPS developer may then decide to assign the pull request to another developer (e.g. when that developer is more knowledgeable about the submitted feature or enhancement or has written the modified code). It may also happen, that additional developers are requested to provide a review and approve the changes. For submissions, that may change the general behavior of LAMMPS, or where a possibility of unwanted side effects exists, additional tests may be requested by the assigned developer.
If the assigned developer is satisfied and considers the submission ready for inclusion into LAMMPS, the pull request will be assigned to the LAMMPS lead developer, Steve Plimpton (@sjplimp), who will then have the final decision on whether the submission will be included, additional changes are required or it will be ultimately rejected. After the pull request is merged, you may delete the pull request branch in your personal LAMMPS fork.
Since the learning curve for git is quite steep for efficiently managing remote repositories, local and remote branches, pull requests and more, do not hesitate to ask questions, if you are not sure about how to do certain steps that are asked of you. Even if the changes asked of you do not make sense to you, they may be important for the LAMMPS developers. Please also note, that these all are guidelines and not set in stone.
If the assigned developer is satisfied and considers the submission ready for inclusion into LAMMPS, the pull request will receive approvals and be merged into the master branch by one of the core LAMMPS developers. After the pull request is merged, you may delete the feature branch used for the pull request in your personal LAMMPS fork.
Since the learning curve for git is quite steep for efficiently managing remote repositories, local and remote branches, pull requests and more, do not hesitate to ask questions, if you are not sure about how to do certain steps that are asked of you. Even if the changes asked of you do not make sense to you, they may be important for the LAMMPS developers. Please also note, that these all are guidelines and nothing set in stone. So depending on the nature of the contribution, the workflow may be adjusted.

View File

@ -13,7 +13,7 @@ get_filename_component(LAMMPS_DOC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../doc ABSOLUT
# To avoid conflicts with the conventional Makefile build system, we build everything here
file(GLOB LIB_SOURCES ${LAMMPS_SOURCE_DIR}/*.cpp)
file(GLOB LIB_SOURCES ${LAMMPS_SOURCE_DIR}/[^.]*.cpp)
file(GLOB LMP_SOURCES ${LAMMPS_SOURCE_DIR}/main.cpp)
list(REMOVE_ITEM LIB_SOURCES ${LMP_SOURCES})
@ -69,6 +69,8 @@ get_lammps_version(${LAMMPS_SOURCE_DIR}/version.h LAMMPS_VERSION)
# Cmake modules/macros are in a subdirectory to keep this file cleaner
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/Modules)
include(PreventInSourceBuilds)
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
#release comes with -O3 by default
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE)
@ -164,12 +166,14 @@ set(LAMMPS_DEPS)
set(LAMMPS_API_DEFINES)
set(DEFAULT_PACKAGES ASPHERE BODY CLASS2 COLLOID COMPRESS DIPOLE GRANULAR
KSPACE MANYBODY MC MEAM MESSAGE MISC MOLECULE PERI REAX REPLICA RIGID SHOCK SPIN SNAP
SRD KIM PYTHON MSCG MPIIO VORONOI POEMS LATTE USER-ATC USER-AWPMD USER-BOCS
USER-CGDNA USER-MESO USER-CGSDK USER-COLVARS USER-DIFFRACTION USER-DPD USER-DRUDE
USER-EFF USER-FEP USER-H5MD USER-LB USER-MANIFOLD USER-MEAMC USER-MGPT USER-MISC
USER-MOFFF USER-MOLFILE USER-NETCDF USER-PHONON USER-QTB USER-REAXC USER-SCAFACOS
USER-SMD USER-SMTBQ USER-SPH USER-TALLY USER-UEF USER-VTK USER-QUIP USER-QMMM)
KSPACE MANYBODY MC MEAM MESSAGE MISC MOLECULE PERI REAX REPLICA RIGID SHOCK
SPIN SNAP SRD KIM PYTHON MSCG MPIIO VORONOI POEMS LATTE USER-ATC USER-AWPMD
USER-BOCS USER-CGDNA USER-MESO USER-CGSDK USER-COLVARS USER-DIFFRACTION
USER-DPD USER-DRUDE USER-EFF USER-FEP USER-H5MD USER-LB USER-MANIFOLD
USER-MEAMC USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE USER-NETCDF
USER-PHONON USER-PLUMED USER-PTM USER-QTB USER-REAXC USER-SCAFACOS
USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY USER-UEF USER-VTK
USER-QUIP USER-QMMM)
set(ACCEL_PACKAGES USER-OMP KOKKOS OPT USER-INTEL GPU)
set(OTHER_PACKAGES CORESHELL QEQ)
foreach(PKG ${DEFAULT_PACKAGES})
@ -190,6 +194,8 @@ if(PKG_MEAM OR PKG_USER-H5MD OR PKG_USER-QMMM OR PKG_USER-SCAFACOS)
enable_language(C)
endif()
include_directories(${LAMMPS_SOURCE_DIR})
# do MPI detection after language activation, if MPI for these language is required
find_package(MPI QUIET)
option(BUILD_MPI "Build MPI version" ${MPI_FOUND})
@ -298,7 +304,7 @@ pkg_depends(USER-SCAFACOS MPI)
find_package(OpenMP QUIET)
option(BUILD_OMP "Build with OpenMP support" ${OpenMP_FOUND})
if(BUILD_OMP OR PKG_USER-OMP OR PKG_KOKKOS OR PKG_USER-INTEL)
if(BUILD_OMP OR PKG_KOKKOS OR PKG_USER-INTEL)
find_package(OpenMP REQUIRED)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
@ -343,12 +349,12 @@ if(PKG_KSPACE)
endif()
endif()
if(PKG_MSCG OR PKG_USER-ATC OR PKG_USER-AWPMD OR PKG_USER-QUIP OR PKG_LATTE)
if(PKG_MSCG OR PKG_USER-ATC OR PKG_USER-AWPMD OR PKG_USER-QUIP OR PKG_LATTE OR PKG_USER-PLUMED)
find_package(LAPACK)
find_package(BLAS)
if(NOT LAPACK_FOUND OR NOT BLAS_FOUND)
enable_language(Fortran)
file(GLOB LAPACK_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/linalg/*.[fF])
file(GLOB LAPACK_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/linalg/[^.]*.[fF])
add_library(linalg STATIC ${LAPACK_SOURCES})
set(LAPACK_LIBRARIES linalg)
else()
@ -523,6 +529,54 @@ if(PKG_USER-SCAFACOS)
include_directories(${SCAFACOS_INCLUDE_DIRS})
endif()
if(PKG_USER-PLUMED)
find_package(GSL REQUIRED)
set(PLUMED_MODE "static" CACHE STRING "Linkage mode for Plumed2 library")
set(PLUMED_MODE_VALUES static shared runtime)
set_property(CACHE PLUMED_MODE PROPERTY STRINGS ${PLUMED_MODE_VALUES})
validate_option(PLUMED_MODE PLUMED_MODE_VALUES)
string(TOUPPER ${PLUMED_MODE} PLUMED_MODE)
option(DOWNLOAD_PLUMED "Download Plumed (instead of using the system's one)" OFF)
if(DOWNLOAD_PLUMED)
include(ExternalProject)
ExternalProject_Add(plumed_build
URL https://github.com/plumed/plumed2/releases/download/v2.4.3/plumed-src-2.4.3.tgz
URL_MD5 b1be7c48971627febc11c61b70767fc5
BUILD_IN_SOURCE 1
CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=<INSTALL_DIR>
$<$<BOOL:${BUILD_SHARED_LIBS}>:--with-pic> )
ExternalProject_get_property(plumed_build INSTALL_DIR)
set(PLUMED_INSTALL_DIR ${INSTALL_DIR})
list(APPEND LAMMPS_DEPS plumed_build)
if(PLUMED_MODE STREQUAL "STATIC")
add_definitions(-D__PLUMED_WRAPPER_CXX=1)
list(APPEND LAMMPS_LINK_LIBS ${PLUMED_INSTALL_DIR}/lib/plumed/obj/kernel.o
"${PLUMED_INSTALL_DIR}/lib/plumed/obj/PlumedStatic.o" ${GSL_LIBRARIES} ${CMAKE_DL_LIBS} ${LAPACK_LIBRARIES})
elseif(PLUMED_MODE STREQUAL "SHARED")
list(APPEND LAMMPS_LINK_LIBS ${PLUMED_INSTALL_DIR}/lib/libplumed.so ${CMAKE_DL_LIBS})
elseif(PLUMED_MODE STREQUAL "RUNTIME")
add_definitions(-D__PLUMED_HAS_DLOPEN=1 -D__PLUMED_DEFAULT_KERNEL=${PLUMED_INSTALL_DIR}/lib/libplumedKernel.so)
list(APPEND LAMMPS_LINK_LIBS ${PLUMED_INSTALL_DIR}/lib/libplumedWrapper.a -rdynamic ${CMAKE_DL_LIBS})
endif()
set(PLUMED_INCLUDE_DIRS "${PLUMED_INSTALL_DIR}/include")
else()
find_package(PkgConfig REQUIRED)
pkg_check_modules(PLUMED plumed REQUIRED)
if(PLUMED_MODE STREQUAL "STATIC")
add_definitions(-D__PLUMED_WRAPPER_CXX=1)
include(${PLUMED_LIBDIR}/plumed/src/lib/Plumed.cmake.static)
elseif(PLUMED_MODE STREQUAL "SHARED")
include(${PLUMED_LIBDIR}/plumed/src/lib/Plumed.cmake.shared)
elseif(PLUMED_MODE STREQUAL "RUNTIME")
add_definitions(-D__PLUMED_HAS_DLOPEN=1 -D__PLUMED_DEFAULT_KERNEL=${PLUMED_LIBDIR}/libplumedKernel.so)
include(${PLUMED_LIBDIR}/plumed/src/lib/Plumed.cmake.runtime)
endif()
list(APPEND LAMMPS_LINK_LIBS ${PLUMED_LOAD})
endif()
include_directories(${PLUMED_INCLUDE_DIRS})
endif()
if(PKG_USER-MOLFILE)
add_library(molfile INTERFACE)
target_include_directories(molfile INTERFACE ${LAMMPS_LIB_SOURCE_DIR}/molfile)
@ -550,8 +604,9 @@ if(PKG_USER-SMD)
set(EIGEN3_INCLUDE_DIR ${SOURCE_DIR})
list(APPEND LAMMPS_DEPS Eigen3_build)
else()
find_package(Eigen3)
if(NOT Eigen3_FOUND)
find_package(Eigen3 NO_MODULE)
mark_as_advanced(Eigen3_DIR)
if(NOT EIGEN3_FOUND)
message(FATAL_ERROR "Eigen3 not found, help CMake to find it by setting EIGEN3_INCLUDE_DIR, or set DOWNLOAD_EIGEN3=ON to download it")
endif()
endif()
@ -603,8 +658,9 @@ endif()
if(PKG_MESSAGE)
option(MESSAGE_ZMQ "Use ZeroMQ in MESSAGE package" OFF)
file(GLOB_RECURSE cslib_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/message/cslib/*.F
${LAMMPS_LIB_SOURCE_DIR}/message/cslib/*.c ${LAMMPS_LIB_SOURCE_DIR}/message/cslib/*.cpp)
file(GLOB_RECURSE cslib_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/message/cslib/[^.]*.F
${LAMMPS_LIB_SOURCE_DIR}/message/cslib/[^.]*.c
${LAMMPS_LIB_SOURCE_DIR}/message/cslib/[^.]*.cpp)
if(BUILD_SHARED_LIBS)
add_library(cslib SHARED ${cslib_SOURCES})
@ -720,8 +776,8 @@ RegisterStyles(${LAMMPS_SOURCE_DIR})
foreach(PKG ${DEFAULT_PACKAGES})
set(${PKG}_SOURCES_DIR ${LAMMPS_SOURCE_DIR}/${PKG})
file(GLOB ${PKG}_SOURCES ${${PKG}_SOURCES_DIR}/*.cpp)
file(GLOB ${PKG}_HEADERS ${${PKG}_SOURCES_DIR}/*.h)
file(GLOB ${PKG}_SOURCES ${${PKG}_SOURCES_DIR}/[^.]*.cpp)
file(GLOB ${PKG}_HEADERS ${${PKG}_SOURCES_DIR}/[^.]*.h)
# check for package files in src directory due to old make system
DetectBuildSystemConflict(${LAMMPS_SOURCE_DIR} ${${PKG}_SOURCES} ${${PKG}_HEADERS})
@ -739,8 +795,8 @@ endforeach()
foreach(PKG ${ACCEL_PACKAGES})
set(${PKG}_SOURCES_DIR ${LAMMPS_SOURCE_DIR}/${PKG})
file(GLOB ${PKG}_SOURCES ${${PKG}_SOURCES_DIR}/*.cpp)
file(GLOB ${PKG}_HEADERS ${${PKG}_SOURCES_DIR}/*.h)
file(GLOB ${PKG}_SOURCES ${${PKG}_SOURCES_DIR}/[^.]*.cpp)
file(GLOB ${PKG}_HEADERS ${${PKG}_SOURCES_DIR}/[^.]*.h)
# check for package files in src directory due to old make system
DetectBuildSystemConflict(${LAMMPS_SOURCE_DIR} ${${PKG}_SOURCES} ${${PKG}_HEADERS})
@ -754,8 +810,10 @@ foreach(SIMPLE_LIB REAX MEAM POEMS USER-ATC USER-AWPMD USER-COLVARS USER-H5MD
if(PKG_${SIMPLE_LIB})
string(REGEX REPLACE "^USER-" "" PKG_LIB "${SIMPLE_LIB}")
string(TOLOWER "${PKG_LIB}" PKG_LIB)
file(GLOB_RECURSE ${PKG_LIB}_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/${PKG_LIB}/*.F
${LAMMPS_LIB_SOURCE_DIR}/${PKG_LIB}/*.c ${LAMMPS_LIB_SOURCE_DIR}/${PKG_LIB}/*.cpp)
file(GLOB_RECURSE ${PKG_LIB}_SOURCES
${LAMMPS_LIB_SOURCE_DIR}/${PKG_LIB}/[^.]*.F
${LAMMPS_LIB_SOURCE_DIR}/${PKG_LIB}/[^.]*.c
${LAMMPS_LIB_SOURCE_DIR}/${PKG_LIB}/[^.]*.cpp)
add_library(${PKG_LIB} STATIC ${${PKG_LIB}_SOURCES})
list(APPEND LAMMPS_LINK_LIBS ${PKG_LIB})
if(PKG_LIB STREQUAL awpmd)
@ -830,6 +888,7 @@ if(PKG_USER-OMP)
set(USER-OMP_SOURCES_DIR ${LAMMPS_SOURCE_DIR}/USER-OMP)
set(USER-OMP_SOURCES ${USER-OMP_SOURCES_DIR}/thr_data.cpp
${USER-OMP_SOURCES_DIR}/thr_omp.cpp
${USER-OMP_SOURCES_DIR}/fix_omp.cpp
${USER-OMP_SOURCES_DIR}/fix_nh_omp.cpp
${USER-OMP_SOURCES_DIR}/fix_nh_sphere_omp.cpp
${USER-OMP_SOURCES_DIR}/domain_omp.cpp)
@ -838,7 +897,7 @@ if(PKG_USER-OMP)
# detects styles which have USER-OMP version
RegisterStylesExt(${USER-OMP_SOURCES_DIR} omp OMP_SOURCES)
RegisterFixStyle("${USER-OMP_SOURCES_DIR}/fix_omp.h")
get_property(USER-OMP_SOURCES GLOBAL PROPERTY OMP_SOURCES)
@ -868,6 +927,20 @@ if(PKG_USER-OMP)
include_directories(${USER-OMP_SOURCES_DIR})
endif()
# Fix rigid/meso requires RIGID to be installed
if(PKG_USER-SDPD)
set(USER-SDPD_SOURCES_DIR ${LAMMPS_SOURCE_DIR}/USER-SDPD)
get_property(hlist GLOBAL PROPERTY FIX)
if(NOT PKG_RIGID)
list(REMOVE_ITEM hlist ${USER-SDPD_SOURCES_DIR}/fix_rigid_meso.h)
list(REMOVE_ITEM LIB_SOURCES ${USER-SDPD_SOURCES_DIR}/fix_rigid_meso.cpp)
endif()
set_property(GLOBAL PROPERTY FIX "${hlist}")
include_directories(${USER-SDPD_SOURCES_DIR})
endif()
if(PKG_KOKKOS)
set(LAMMPS_LIB_KOKKOS_SRC_DIR ${LAMMPS_LIB_SOURCE_DIR}/kokkos)
set(LAMMPS_LIB_KOKKOS_BIN_DIR ${LAMMPS_LIB_BINARY_DIR}/kokkos)
@ -1038,7 +1111,7 @@ if(PKG_GPU)
set(GPU_PREC_SETTING "SINGLE_SINGLE")
endif()
file(GLOB GPU_LIB_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cpp)
file(GLOB GPU_LIB_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/gpu/[^.]*.cpp)
file(MAKE_DIRECTORY ${LAMMPS_LIB_BINARY_DIR}/gpu)
if(GPU_API STREQUAL "CUDA")
@ -1051,15 +1124,15 @@ if(PKG_GPU)
set(GPU_ARCH "sm_30" CACHE STRING "LAMMPS GPU CUDA SM architecture (e.g. sm_60)")
file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cu ${CMAKE_CURRENT_SOURCE_DIR}/gpu/*.cu)
file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/[^.]*.cu ${CMAKE_CURRENT_SOURCE_DIR}/gpu/[^.]*.cu)
list(REMOVE_ITEM GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_pppm.cu)
cuda_include_directories(${LAMMPS_LIB_SOURCE_DIR}/gpu ${LAMMPS_LIB_BINARY_DIR}/gpu)
if(CUDPP_OPT)
cuda_include_directories(${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini)
file(GLOB GPU_LIB_CUDPP_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini/*.cpp)
file(GLOB GPU_LIB_CUDPP_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini/*.cu)
file(GLOB GPU_LIB_CUDPP_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini/[^.]*.cpp)
file(GLOB GPU_LIB_CUDPP_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini/[^.]*.cu)
endif()
cuda_compile_cubin(GPU_GEN_OBJS ${GPU_LIB_CU} OPTIONS
@ -1108,7 +1181,7 @@ if(PKG_GPU)
include(OpenCLUtils)
set(OCL_COMMON_HEADERS ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_preprocessor.h ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_aux_fun1.h)
file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cu)
file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/[^.]*.cu)
list(REMOVE_ITEM GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_gayberne.cu ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_gayberne_lj.cu)
foreach(GPU_KERNEL ${GPU_LIB_CU})
@ -1158,7 +1231,6 @@ set(LAMMPS_STYLE_HEADERS_DIR ${CMAKE_CURRENT_BINARY_DIR}/styles)
GenerateStyleHeaders(${LAMMPS_STYLE_HEADERS_DIR})
include_directories(${LAMMPS_SOURCE_DIR})
include_directories(${LAMMPS_STYLE_HEADERS_DIR})
######################################
@ -1235,7 +1307,7 @@ if(BUILD_DOC)
set(VIRTUALENV ${PYTHON_EXECUTABLE} -m virtualenv)
file(GLOB DOC_SOURCES ${LAMMPS_DOC_DIR}/src/*.txt)
file(GLOB DOC_SOURCES ${LAMMPS_DOC_DIR}/src/[^.]*.txt)
file(GLOB PDF_EXTRA_SOURCES ${LAMMPS_DOC_DIR}/src/lammps_commands*.txt ${LAMMPS_DOC_DIR}/src/lammps_support.txt ${LAMMPS_DOC_DIR}/src/lammps_tutorials.txt)
list(REMOVE_ITEM DOC_SOURCES ${PDF_EXTRA_SOURCES})

View File

@ -0,0 +1,23 @@
# - Prevent in-source builds.
# https://stackoverflow.com/questions/1208681/with-cmake-how-would-you-disable-in-source-builds/
function(prevent_in_source_builds)
# make sure the user doesn't play dirty with symlinks
get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
get_filename_component(srcdir2 "${CMAKE_SOURCE_DIR}/.." REALPATH)
get_filename_component(srcdir3 "${CMAKE_SOURCE_DIR}/../src" REALPATH)
get_filename_component(bindir "${CMAKE_BINARY_DIR}" REALPATH)
# disallow in-source builds
if("${srcdir}" STREQUAL "${bindir}" OR "${srcdir2}" STREQUAL "${bindir}" OR "${srcdir3}" STREQUAL "${bindir}")
message(FATAL_ERROR "\
CMake must not to be run in the source directory. \
Rather create a dedicated build directory and run CMake there. \
To clean up after this aborted in-place compilation:
rm -r CMakeCache.txt CMakeFiles
")
endif()
endfunction()
prevent_in_source_builds()

View File

@ -85,19 +85,23 @@ function(RegisterNPairStyle path)
AddStyleHeader(${path} NPAIR)
endfunction(RegisterNPairStyle)
function(RegisterFixStyle path)
AddStyleHeader(${path} FIX)
endfunction(RegisterFixStyle)
function(RegisterStyles search_path)
FindStyleHeaders(${search_path} ANGLE_CLASS angle_ ANGLE ) # angle ) # force
FindStyleHeaders(${search_path} ATOM_CLASS atom_vec_ ATOM_VEC ) # atom ) # atom atom_vec_hybrid
FindStyleHeaders(${search_path} BODY_CLASS body_ BODY ) # body ) # atom_vec_body
FindStyleHeaders(${search_path} BOND_CLASS bond_ BOND ) # bond ) # force
FindStyleHeaders(${search_path} COMMAND_CLASS "" COMMAND ) # command ) # input
FindStyleHeaders(${search_path} COMMAND_CLASS "[^.]" COMMAND ) # command ) # input
FindStyleHeaders(${search_path} COMPUTE_CLASS compute_ COMPUTE ) # compute ) # modify
FindStyleHeaders(${search_path} DIHEDRAL_CLASS dihedral_ DIHEDRAL ) # dihedral ) # force
FindStyleHeaders(${search_path} DUMP_CLASS dump_ DUMP ) # dump ) # output write_dump
FindStyleHeaders(${search_path} FIX_CLASS fix_ FIX ) # fix ) # modify
FindStyleHeaders(${search_path} IMPROPER_CLASS improper_ IMPROPER ) # improper ) # force
FindStyleHeaders(${search_path} INTEGRATE_CLASS "" INTEGRATE ) # integrate ) # update
FindStyleHeaders(${search_path} KSPACE_CLASS "" KSPACE ) # kspace ) # force
FindStyleHeaders(${search_path} INTEGRATE_CLASS "[^.]" INTEGRATE ) # integrate ) # update
FindStyleHeaders(${search_path} KSPACE_CLASS "[^.]" KSPACE ) # kspace ) # force
FindStyleHeaders(${search_path} MINIMIZE_CLASS min_ MINIMIZE ) # minimize ) # update
FindStyleHeaders(${search_path} NBIN_CLASS nbin_ NBIN ) # nbin ) # neighbor
FindStyleHeaders(${search_path} NPAIR_CLASS npair_ NPAIR ) # npair ) # neighbor

View File

@ -1492,6 +1492,11 @@ target API.
</dl>
</td>
</tr>
<tr>
<td><code>BIN2C</code> (CUDA only)</td>
<td>Path to bin2c executable, will automatically pick up the first one in your $PATH.</td>
<td>(automatic)</td>
</tr>
</tbody>
</table>
@ -1647,9 +1652,8 @@ requires `gzip` to be in your `PATH`
</tr>
<tr>
<td><code>GZIP_EXECUTABLE</code></td>
<td></td>
<td>
</td>
<td>Path to gzip executable, will automatically pick up the first one in your $PATH.</td>
<td>(automatic)</td>
</tr>
</tbody>
</table>
@ -1679,9 +1683,8 @@ requires `ffmpeg` to be in your `PATH`
</tr>
<tr>
<td><code>FFMPEG_EXECUTABLE</code></td>
<td></td>
<td>
</td>
<td>Path to ffmpeg executable, will automatically pick up the first one in your $PATH.</td>
<td>(automatic)</td>
</tr>
</tbody>
</table>

View File

@ -1,9 +1,29 @@
# pkg-config file for lammps
# https://people.freedesktop.org/~dbn/pkg-config-guide.html
# Usage: cc `pkg-config --cflags --libs liblammps` -o myapp myapp.c
# after you added @CMAKE_INSTALL_FULL_LIBDIR@/pkg-config to PKG_CONFIG_PATH,
# Add the directory where lammps.pc got installed to your PKG_CONFIG_PATH
# e.g. export PKG_CONFIG_PATH=@CMAKE_INSTALL_FULL_LIBDIR@/pkgconfig
# Use this on commandline with:
# c++ `pkg-config --cflags --libs lammps` -o myapp myapp.cpp
# Use this in a Makefile:
# myapp: myapp.cpp
# $(CC) `pkg-config --cflags --libs lammps` -o $@ $<
# Use this in autotools:
# configure.ac:
# PKG_CHECK_MODULES([LAMMPS], [lammps])
# Makefile.am:
# myapp_CFLAGS = $(LAMMPS_CFLAGS)
# myapp_LDADD = $(LAMMPS_LIBS)
# Use this in CMake:
# CMakeLists.txt:
# find_package(PkgConfig)
# pkg_check_modules(LAMMPS IMPORTED_TARGET lammps)
# target_link_libraries(<lib> PkgConfig::LAMMPS)
prefix=@CMAKE_INSTALL_PREFIX@
libdir=@CMAKE_INSTALL_FULL_LIBDIR@
includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@

View File

@ -8,12 +8,12 @@ set(USER_PACKAGES USER-ATC USER-AWPMD USER-BOCS USER-CGDNA USER-CGSDK USER-COLVA
USER-INTEL USER-LB USER-MANIFOLD USER-MEAMC USER-MESO
USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE
USER-NETCDF USER-OMP USER-PHONON USER-QMMM USER-QTB
USER-QUIP USER-REAXC USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-QUIP USER-REAXC USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-UEF USER-VTK)
set(PACKAGES_WITH_LIB COMPRESS GPU KIM KOKKOS LATTE MEAM MPIIO MSCG POEMS PYTHON REAX VORONOI
USER-ATC USER-AWPMD USER-COLVARS USER-H5MD USER-LB USER-MOLFILE
USER-NETCDF USER-QMMM USER-QUIP USER-SMD USER-VTK)
USER-NETCDF USER-PLUMED USER-QMMM USER-QUIP USER-SMD USER-VTK)
set(ALL_PACKAGES ${STANDARD_PACKAGES} ${USER_PACKAGES})

View File

@ -8,12 +8,12 @@ set(USER_PACKAGES USER-ATC USER-AWPMD USER-BOCS USER-CGDNA USER-CGSDK USER-COLVA
USER-INTEL USER-LB USER-MANIFOLD USER-MEAMC USER-MESO
USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE
USER-NETCDF USER-OMP USER-PHONON USER-QMMM USER-QTB
USER-QUIP USER-REAXC USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-QUIP USER-REAXC USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-UEF USER-VTK)
set(PACKAGES_WITH_LIB COMPRESS GPU KIM KOKKOS LATTE MEAM MPIIO MSCG POEMS PYTHON REAX VORONOI
USER-ATC USER-AWPMD USER-COLVARS USER-H5MD USER-LB USER-MOLFILE
USER-NETCDF USER-QMMM USER-QUIP USER-SMD USER-VTK)
USER-NETCDF USER-PLUMED USER-QMMM USER-QUIP USER-SMD USER-VTK)
set(ALL_PACKAGES ${STANDARD_PACKAGES} ${USER_PACKAGES})

View File

@ -56,11 +56,13 @@ set(PKG_USER-MOFFF OFF CACHE BOOL "" FORCE)
set(PKG_USER-MOLFILE OFF CACHE BOOL "" FORCE)
set(PKG_USER-NETCDF OFF CACHE BOOL "" FORCE)
set(PKG_USER-OMP OFF CACHE BOOL "" FORCE)
set(PKG_USER-PHOFFOFF OFF CACHE BOOL "" FORCE)
set(PKG_USER-PHONON OFF CACHE BOOL "" FORCE)
set(PKG_USER-PLUMED OFF CACHE BOOL "" FORCE)
set(PKG_USER-QMMM OFF CACHE BOOL "" FORCE)
set(PKG_USER-QTB OFF CACHE BOOL "" FORCE)
set(PKG_USER-QUIP OFF CACHE BOOL "" FORCE)
set(PKG_USER-REAXC OFF CACHE BOOL "" FORCE)
set(PKG_USER-SDPD OFF CACHE BOOL "" FORCE)
set(PKG_USER-SMD OFF CACHE BOOL "" FORCE)
set(PKG_USER-SMTBQ OFF CACHE BOOL "" FORCE)
set(PKG_USER-SPH OFF CACHE BOOL "" FORCE)

View File

@ -8,12 +8,12 @@ set(USER_PACKAGES USER-ATC USER-AWPMD USER-BOCS USER-CGDNA USER-CGSDK USER-COLVA
USER-INTEL USER-LB USER-MANIFOLD USER-MEAMC USER-MESO
USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE
USER-NETCDF USER-OMP USER-PHONON USER-QMMM USER-QTB
USER-QUIP USER-REAXC USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-QUIP USER-REAXC USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-UEF USER-VTK)
set(PACKAGES_WITH_LIB COMPRESS GPU KIM KOKKOS LATTE MEAM MPIIO MSCG POEMS PYTHON REAX VORONOI
USER-ATC USER-AWPMD USER-COLVARS USER-H5MD USER-LB USER-MOLFILE
USER-NETCDF USER-QMMM USER-QUIP USER-SMD USER-VTK)
USER-NETCDF USER-PLUMED USER-QMMM USER-QUIP USER-SMD USER-VTK)
set(ALL_PACKAGES ${STANDARD_PACKAGES} ${USER_PACKAGES})

View File

@ -8,7 +8,7 @@ set(USER_PACKAGES USER-ATC USER-AWPMD USER-BOCS USER-CGDNA USER-CGSDK USER-COLVA
USER-INTEL USER-LB USER-MANIFOLD USER-MEAMC USER-MESO
USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE
USER-NETCDF USER-OMP USER-PHONON USER-QMMM USER-QTB
USER-QUIP USER-REAXC USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-QUIP USER-REAXC USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-UEF USER-VTK)
set(PACKAGES_WITH_LIB COMPRESS GPU KIM KOKKOS LATTE MEAM MPIIO MSCG POEMS PYTHON REAX VORONOI

View File

@ -8,7 +8,7 @@ set(USER_PACKAGES USER-ATC USER-AWPMD USER-BOCS USER-CGDNA USER-CGSDK USER-COLVA
USER-INTEL USER-LB USER-MANIFOLD USER-MEAMC USER-MESO
USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE
USER-NETCDF USER-OMP USER-PHONON USER-QMMM USER-QTB
USER-QUIP USER-REAXC USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-QUIP USER-REAXC USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-UEF USER-VTK)
set(PACKAGES_WITH_LIB COMPRESS GPU KIM KOKKOS LATTE MEAM MPIIO MSCG POEMS PYTHON REAX VORONOI

View File

@ -8,12 +8,12 @@ set(USER_PACKAGES USER-ATC USER-AWPMD USER-BOCS USER-CGDNA USER-CGSDK USER-COLVA
USER-INTEL USER-LB USER-MANIFOLD USER-MEAMC USER-MESO
USER-MGPT USER-MISC USER-MOFFF USER-MOLFILE
USER-NETCDF USER-OMP USER-PHONON USER-QMMM USER-QTB
USER-QUIP USER-REAXC USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-QUIP USER-REAXC USER-SDPD USER-SMD USER-SMTBQ USER-SPH USER-TALLY
USER-UEF USER-VTK)
set(PACKAGES_WITH_LIB COMPRESS GPU KIM KOKKOS LATTE MEAM MPIIO MSCG POEMS PYTHON REAX VORONOI
USER-ATC USER-AWPMD USER-COLVARS USER-H5MD USER-LB USER-MOLFILE
USER-NETCDF USER-QMMM USER-QUIP USER-SMD USER-VTK)
USER-NETCDF USER-PLUMED USER-QMMM USER-QUIP USER-SMD USER-VTK)
set(ALL_PACKAGES ${STANDARD_PACKAGES} ${USER_PACKAGES})

View File

@ -38,7 +38,7 @@ OBJECTS=$(SOURCES:src/%.txt=$(RSTDIR)/%.rst)
help:
@echo "Please use \`make <target>' where <target> is one of"
@echo " html create HTML doc pages in html dir"
@echo " pdf create Manual.pdf and Developer.pdf in this dir"
@echo " pdf create Developer.pdf and Manual.pdf in this dir"
@echo " old create old-style HTML doc pages in old dir"
@echo " fetch fetch HTML and PDF files from LAMMPS web site"
@echo " epub create ePUB format manual for e-book readers"
@ -95,9 +95,10 @@ spelling: $(OBJECTS) utils/sphinx-config/false_positives.txt
@echo "Spell check finished."
epub: $(OBJECTS)
@mkdir -p epub
@mkdir -p epub/JPG
@rm -f LAMMPS.epub
@cp src/JPG/lammps-logo.png epub/
@cp src/JPG/*.* epub/JPG
@(\
. $(VENV)/bin/activate ;\
cp -r src/* $(RSTDIR)/ ;\
@ -116,17 +117,17 @@ mobi: epub
pdf: utils/txt2html/txt2html.exe
@(\
set -e; \
cd src; \
../utils/txt2html/txt2html.exe -b *.txt; \
htmldoc --batch lammps.book; \
for s in `echo *.txt | sed -e 's,\.txt,\.html,g'` ; \
do grep -q $$s lammps.book || \
echo doc file $$s missing in src/lammps.book; done; \
rm *.html; \
cd Developer; \
cd src/Developer; \
pdflatex developer; \
pdflatex developer; \
mv developer.pdf ../../Developer.pdf; \
cd ..; \
../utils/txt2html/txt2html.exe -b *.txt; \
htmldoc --batch lammps.book; \
for s in `echo *.txt | sed -e 's/ \(pairs\|bonds\|angles\|dihedrals\|impropers\|commands_list\|fixes\|computes\).txt/ /g' | sed -e 's,\.txt,\.html,g'` ; \
do grep -q ^$$s lammps.book || \
echo WARNING: doc file $$s missing in src/lammps.book; done; \
rm *.html; \
)
old: utils/txt2html/txt2html.exe

View File

@ -0,0 +1,184 @@
# Outline of the GitHub Development Workflow
This purpose of this document is to provide a point of reference for the
core LAMMPS developers and other LAMMPS contibutors to understand the
choices the LAMMPS developers have agreed on. Git and GitHub provide the
tools, but do not set policies, so it is up to the developers to come to
an agreement as to how to define and interpret policies. This document
is likely to change as our experiences and needs change and we try to
adapt accordingly. Last change 2018-11-15.
## Table of Contents
* [GitHub Merge Management](#github-merge-management)
* [Pull Requests](#pull-requests)
* [Pull Request Assignments](#pull-request-assignments)
* [Pull Request Reviews](#pull-request-reviews)
* [Pull Request Discussions](#pull-request-discussions)
* [Checklist for Pull Requests](#checklist-for-pull-requests)
* [GitHub Issues](#github-issues)
* [Milestones and Release Planning](#milestones-and-release-planning)
## GitHub Merge Management
In the interest of consistency, ONLY ONE of the core LAMMPS developers
should doing the merging itself. This is currently
[@akohlmey](https://github.com/akohlmey) (Axel Kohlmeyer).
If this assignment needs to be changed, it shall be done right after a
stable release.
## Pull Requests
ALL changes to the LAMMPS code and documentation, however trivial, MUST
be submitted as a pull request to GitHub. All changes to the "master"
branch must be made exclusively through merging pull requests. The
"unstable" and "stable" branches, respectively are only to be updated
upon patch or stable releases with fast-forward merges based on the
associated tags. Pull requests may also be submitted to (long-running)
feature branches created by LAMMPS developers inside the LAMMPS project,
if needed. Those are not subject to the merge and review restrictions
discussed in this document, though, but get manages as needed on a
case-by-case basis.
### Pull Request Assignments
Pull requests can be "chaperoned" by one of the LAMMPS core developers.
This is indicated by who the pull request is assigned to. LAMMPS core
developers can self-assign or they can decide to assign a pull request
to a different LAMMPS developer. Being assigned to a pull request means,
that this pull request may need some work and the assignee is tasked to
determine what this might be needed or not, and may either implement the
required changes or ask the submitter of the pull request to implement
them. Even though, all LAMMPS developers may have write access to pull
requests (if enabled by the submitter, which is the default), only the
submitter or the assignee of a pull request may do so. During this
period the "work_in_progress" label shall be applied to the pull
request. The assignee gets to decide what happens to the pull request
next, e.g. whether it should be assigned to a different developer for
additional checks and changes, or is recommended to be merged. Removing
the "work_in_progress" label and assigning the pull request to the
developer tasked with merging signals that a pull request is ready to be
merged.
### Pull Request Reviews
People can be assigned to review a pull request in two ways:
* They can be assigned manually to review a pull request
by the submitter or a LAMMPS developer
* They can be automatically assigned, because a developers matches
a file pattern in the `.github/CODEOWNERS` file, which associates
developers with the code they contributed and maintain.
Reviewers are requested to state their appraisal of the proposed changes
and either approve or request changes. People may unassign themselves
from review, if they feel not competent about the changes proposed. At
least one review from a LAMMPS developer with write access is required
before merging in addition to the automated compilation tests. The
feature, that reviews from code owners are "hard" reviews (i.e. they
must all be approved before merging is allowed), is currently disabled
and it is in the discretion of the merge maintainer to assess when
a sufficient degree of approval has been reached. Reviews may be
(automatically) dismissed, when the reviewed code has been changed,
and then approval is required a second time.
### Pull Request Discussions
All discussions about a pull request should be kept as much as possible
on the pull request discussion page on GitHub, so that other developers
can later review the entire discussion after the fact and understand the
rationale behind choices made. Exceptions to this policy are technical
discussions, that are centered on tools or policies themselves
(git, github, c++) rather than on the content of the pull request.
### Checklist for Pull Requests
Here are some items to check:
* source and text files should not have CR/LF line endings (use dos2unix to remove)
* every new command or style should have documentation. The names of
source files (c++ and manual) should follow the name of the style.
(example: `src/fix_nve.cpp`, `src/fix_nve.h` for `fix nve` command,
implementing the class `FixNVE`, documented in `doc/src/fix_nve.txt`)
* all new style names should be lower case, the must be no dashes,
blanks, or underscores separating words, only forward slashes.
* new style docs should be added to the "overview" files in
`doc/src/Commands_*.txt`, `doc/src/{fixes,computes,pairs,bonds,...}.txt`
and `doc/src/lammps.book`
* new files in packages should be added to `src/.gitignore`
* removed or renamed files in packages should be added to `src/Purge.list`
* C++ source files should use C++ style include files for accessing
C-library APIs, e.g. `#include <cstdlib>` instead of `#include <stdlib.h>`.
And they should use angular brackets instead of double quotes. Full list:
* assert.h -> cassert
* ctype.h -> cctype
* errno.h -> cerrno
* float.h -> cfloat
* limits.h -> climits
* math.h -> cmath
* omplex.h -> complex
* setjmp.h -> csetjmp
* signal.h -> csignal
* stddef.h -> cstddef
* stdint.h -> cstdint
* stdio.h -> cstdio
* stdlib.h -> cstdlib
* string.h -> cstring
* time.h -> ctime
Do not replace (as they are C++-11): `inttypes.h` and `stdint.h`.
* Code should follow the C++-98 standard. C++-11 is only accepted
in individual special purpose packages
* indentation is two spaces per level
* there should be no tabs and no trailing whitespace
* header files, especially of new styles, should not include any
other headers, except the header with the base class or cstdio.
Forward declarations should be used instead when possible.
* iostreams should be avoided. LAMMPS uses stdio from the C-library.
* use of STL in headers and class definitions should be avoided.
* static class members should be avoided at all cost.
* anything storing atom IDs should be using `tagint` and not `int`.
This can be flagged by the compiler only for pointers and only when
compiling LAMMPS with `-DLAMMPS_BIGBIG`.
* when including both `lmptype.h` (and using defines or macros from it)
and `mpi.h`, `lmptype.h` must be included first.
## GitHub Issues
The GitHub issue tracker is the location where the LAMMPS developers
and other contributors or LAMMPS users can report issues or bugs with
the LAMMPS code or request new features to be added. Feature requests
are usually indicated by a `[Feature Request]` marker in the subject.
Issues are assigned to a person, if this person is working on this
feature or working to resolve an issue. Issues that have nobody working
on them at the moment, have the label `volunteer needed` attached.
When an issue, say `#125` is resolved by a specific pull request,
the comment for the pull request shall contain the text `closes #125`
or `fixes #125`, so that the issue is automatically deleted when
the pull request is merged.
## Milestones and Release Planning
LAMMPS uses a continuous release development model with incremental
changes, i.e. significant effort is made - including automated pre-merge
testing - that the code in the branch "master" does not get broken.
More extensive testing (including regression testing) is performed after
code is merged to the "master" branch. There are patch releases of
LAMMPS every 1-3 weeks at a point, when the LAMMPS developers feel, that
a sufficient amount of changes have happened, and the post-merge testing
has been successful. These patch releases are marked with a
`patch_<version date>` tag and the "unstable" branch follows only these
versions (and thus is always supposed to be of production quality,
unlike "master", which may be temporary broken, in the case of larger
change sets or unexpected incompatibilities or side effects.
About 3-4 times each year, there are going to be "stable" releases
of LAMMPS. These have seen additional, manual testing and review of
results from testing with instrumented code and static code analysis.
Also, in the last 2-3 patch releases before a stable release are
"release candidate" versions which only contain bugfixes and
documentation updates. For release planning and the information of
code contributors, issues and pull requests being actively worked on
are assigned a "milestone", which corresponds to the next stable
release or the stable release after that, with a tentative release
date.

View File

@ -137,9 +137,9 @@ simply loading the appropriate module before building LAMMPS.
-D CMAKE_C_COMPILER=name # name of C compiler
-D CMAKE_Fortran_COMPILER=name # name of Fortran compiler :pre
-D CMAKE_CXX_FlAGS=string # flags to use with C++ compiler
-D CMAKE_C_FlAGS=string # flags to use with C compiler
-D CMAKE_Fortran_FlAGS=string # flags to use with Fortran compiler :pre
-D CMAKE_CXX_FLAGS=string # flags to use with C++ compiler
-D CMAKE_C_FLAGS=string # flags to use with C compiler
-D CMAKE_Fortran_FLAGS=string # flags to use with Fortran compiler :pre
By default CMake will use a compiler it finds and it will add
optimization flags appropriate to that compiler and any "accelerator
@ -292,6 +292,10 @@ This will create a lammps/doc/html dir with the HTML doc pages so that
you can browse them locally on your system. Type "make" from the
lammps/doc dir to see other options.
NOTE: You can also download a tarball of the documention for the
current LAMMPS version (HTML and PDF files), from the website
"download page"_http://lammps.sandia.gov/download.html.
:line
Install LAMMPS after a build :h4,link(install)

View File

@ -45,6 +45,7 @@ This is the list of packages that may require additional steps.
"USER-INTEL"_#user-intel,
"USER-MOLFILE"_#user-molfile,
"USER-NETCDF"_#user-netcdf,
"USER-PLUMED"_#user-plumed,
"USER-OMP"_#user-omp,
"USER-QMMM"_#user-qmmm,
"USER-QUIP"_#user-quip,
@ -563,9 +564,9 @@ file.
VORONOI package :h4,link(voronoi)
To build with this package, you must download and build the "Voro++
library"_voro_home.
library"_voro-home.
:link(voro_home,http://math.lbl.gov/voro++)
:link(voro-home,http://math.lbl.gov/voro++)
[CMake build]:
@ -712,6 +713,103 @@ a corresponding Makefile.lammps.machine file.
:line
USER-PLUMED package :h4,link(user-plumed)
Before building LAMMPS with this package, you must first build PLUMED.
PLUMED can be built as part of the LAMMPS build or installed separately
from LAMMPS using the generic "plumed installation instructions"_plumedinstall.
:link(plumedinstall,http://plumed.github.io/doc-master/user-doc/html/_installation.html)
PLUMED can be linked into MD codes in three different modes: static,
shared, and runtime. With the "static" mode, all required PLUMED code
is linked statically into the MD code. The MD code is then fully
independent from the PLUMED installation, but also you have to
rebuild/relink the MD code to update the PLUMED code inside it. With
"shared" linkage mode, the MD code is linked to a shared library
containing the PLUMED code, preferably after it was installed in a
globally accessible location. This way the same installed PLUMED code
can be shared across multiple MD packages and can be updated, for as
long as the shared PLUMED library is ABI-compatible. The third linkage
mode is "runtime" which allows to switch the PLUMED kernel at runtime
between different variants through setting the PLUMED_KERNEL environment
varible, which has to point to the location of the libplumedKernel.so
dynamical shared object, which is then loaded at runtime. This is
particularly convenient for doing PLUMED development and comparing
multiple PLUMED versions without having to recompile the hosting MD
code. All three linkage modes are supported by LAMMPS on selected
operating systems (e.g. Linux) and using either CMake or traditional
make build. The "static" mode should be most portable, the "runtime"
mode support in LAMMPS makes the most assumptions about operating
system and compiler environment. If one mode does not work, try a
different one, or switch to a different build system, or consider
a global PLUMED installation or downloading it during building LAMMPS.
[CMake build]:
-D DOWNLOAD_PLUMED=value # download PLUMED for build, value = no (default) or yes
-D PLUMED_MODE=value # Linkage mode for PLUMED, value = static (default), shared, or runtime :pre
If DOWNLOAD_PLUMED is set to "yes", the PLUMED library will be
downloaded (the version of that is hardcoded to a vetted version of
PLUMED, usually a recent stable release version) and built inside the
CMake build directory. If DOWNLOAD_PLUMED is set to "no" (the default),
CMake will try to detect an installed version of PLUMED and link to
that. For this to work, the PLUMED library has to be installed into a
location where the pkg-config tool can find it or the PKG_CONFIG_PATH
environment variable has to be set up accordingly.
The PLUMED_MODE setting determines the linkage mode of the PLUMED
library. Allowed values are "static" (default), "shared", or "runtime".
For a discussion of PLUMED linkage modes, please see above. When
enabling DOWNLOAD_PLUMED, the static linkage mode is recommended.
[Traditional make]:
Before installing the USER-PLUMED package, first the PLUMED library
needs to be configured so that LAMMPS can find the right settings when
compiling and linking the LAMMPS executable itself. You can either
download and build PLUMED inside the LAMMPS plumed library folder or use
a previously installed PLUMED library and point LAMMPS to its
location. You also have to choose the linkage mode: "static" (default),
"shared" or "runtime". For a discussion of PLUMED linkage modes, please
see above.
Download/compilation/configuration of the plumed library can be done
from the src folder through the following make args:
make lib-plumed # print help message
make lib-plumed args="-b" # download and build PLUMED in lib/plumed/plumed2
make lib-plumed args="-p $HOME/.local" # use existing PLUMED installation in $HOME/.local
make lib-plumed args="-p /usr/local -m shared" # use existing PLUMED installation in
# /usr/local and use shared linkage mode
:pre
Note that 2 symbolic (soft) links, "includelink" and "liblink" are
created in lib/plumed to point into the location of the PLUMED build to
use and also a new file lib/plumed/Makefile.lammps is created with
settings suitable for LAMMPS to compile and link PLUMED in the desired
linkage mode. After this step is compleded, you can install the
USER-PLUMED package and compile LAMMPS in the usual manner:
make yes-user-plumed
make machine :pre
Once this compilation completes you should be able to run LAMMPS in the
usual way. For shared linkage mode, libplumed.so must be found by the
LAMMPS executable, which on many operating systems means, you have to
set the LD_LIBRARY_PATH environment variable accordingly.
Support for the different linkage modes in LAMMPS varies for different
operating systems, using the static linkage is expected to be the most
portable, and thus set to be the default.
If you want to change the linkage mode, you have to re-run "make
lib-plumed" with the desired settings [and] do a reinstall if the
USER-PLUMED package with "make yes-user-plumed" to update the required
makefile settings with the changes in the lib/plumed folder.
:line
USER-H5MD package :h4,link(user-h5md)
To build with this package you must have the HDF5 software package
@ -932,9 +1030,9 @@ successfully build on your system.
USER-SCAFACOS package :h4,link(user-scafacos)
To build with this package, you must download and build the "ScaFaCoS
Coulomb solver library"_scafacos_home
Coulomb solver library"_scafacos-home
:link(scafacos_home,http://www.scafacos.de)
:link(scafacos-home,http://www.scafacos.de)
[CMake build]:

View File

@ -42,7 +42,7 @@ packages:
"KOKKOS"_Build_extras.html#kokkos,
"LATTE"_Build_extras.html#latte,
"MEAM"_Build_extras.html#meam,
"MESSAGE"_#Build_extras.html#message,
"MESSAGE"_Build_extras.html#message,
"MSCG"_Build_extras.html#mscg,
"OPT"_Build_extras.html#opt,
"POEMS"_Build_extras.html#poems,
@ -56,10 +56,11 @@ packages:
"USER-INTEL"_Build_extras.html#user-intel,
"USER-MOLFILE"_Build_extras.html#user-molfile,
"USER-NETCDF"_Build_extras.html#user-netcdf,
"USER-PLUMED"_Build_extras.html#user-plumed,
"USER-OMP"_Build_extras.html#user-omp,
"USER-QMMM"_Build_extras.html#user-qmmm,
"USER-QUIP"_Build_extras.html#user-quip,
"USER-SCAFACOS"_#Build_extras.html#user-scafacos,
"USER-SCAFACOS"_Build_extras.html#user-scafacos,
"USER-SMD"_Build_extras.html#user-smd,
"USER-VTK"_Build_extras.html#user-vtk :tb(c=6,ea=c,a=l)

View File

@ -59,6 +59,7 @@ An alphabetic list of all LAMMPS commands.
"fix_modify"_fix_modify.html,
"group"_group.html,
"group2ndx"_group2ndx.html,
"hyper"_hyper.html,
"if"_if.html,
"info"_info.html,
"improper_coeff"_improper_coeff.html,

View File

@ -34,7 +34,7 @@ OPT.
"fene (iko)"_bond_fene.html,
"fene/expand (o)"_bond_fene_expand.html,
"gromos (o)"_bond_gromos.html,
"harmonic (ko)"_bond_harmonic.html,
"harmonic (iko)"_bond_harmonic.html,
"harmonic/shift (o)"_bond_harmonic_shift.html,
"harmonic/shift/cut (o)"_bond_harmonic_shift_cut.html,
"morse (o)"_bond_morse.html,
@ -57,9 +57,11 @@ OPT.
"zero"_angle_zero.html,
"hybrid"_angle_hybrid.html :tb(c=3,ea=c)
"charmm (ko)"_angle_charmm.html,
"charmm (iko)"_angle_charmm.html,
"class2 (ko)"_angle_class2.html,
"class2/p6"_angle_class2.html,
"cosine (o)"_angle_cosine.html,
"cosine/buck6d"_angle_cosine_buck6d.html,
"cosine/delta (o)"_angle_cosine_delta.html,
"cosine/periodic (o)"_angle_cosine_periodic.html,
"cosine/shift (o)"_angle_cosine_shift.html,
@ -70,7 +72,7 @@ OPT.
"fourier/simple (o)"_angle_fourier_simple.html,
"harmonic (iko)"_angle_harmonic.html,
"quartic (o)"_angle_quartic.html,
"sdk"_angle_sdk.html,
"sdk (o)"_angle_sdk.html,
"table (o)"_angle_table.html :tb(c=4,ea=c)
:line
@ -97,7 +99,7 @@ OPT.
"nharmonic (o)"_dihedral_nharmonic.html,
"opls (iko)"_dihedral_opls.html,
"quadratic (o)"_dihedral_quadratic.html,
"spherical (o)"_dihedral_spherical.html,
"spherical"_dihedral_spherical.html,
"table (o)"_dihedral_table.html,
"table/cut"_dihedral_table_cut.html :tb(c=4,ea=c)
@ -112,7 +114,7 @@ OPT.
"none"_improper_none.html,
"zero"_improper_zero.html,
"hybrid"_improper_hybrid.html :tb(c=3,ea=c)
"hybrid"_improper_hybrid.html :tb(c=3,ea=c)
"class2 (ko)"_improper_class2.html,
"cossq (o)"_improper_cossq.html,
@ -120,5 +122,6 @@ OPT.
"distance"_improper_distance.html,
"fourier (o)"_improper_fourier.html,
"harmonic (iko)"_improper_harmonic.html,
"inversion/harmonic"_improper_inversion_harmonic.html,
"ring (o)"_improper_ring.html,
"umbrella (o)"_improper_umbrella.html :tb(c=4,ea=c)

View File

@ -25,6 +25,7 @@ additional letters in parenthesis: g = GPU, i = USER-INTEL, k =
KOKKOS, o = USER-OMP, t = OPT.
"ackland/atom"_compute_ackland_atom.html,
"adf"_compute_adf.html,
"aggregate/atom"_compute_cluster_atom.html,
"angle"_compute_angle.html,
"angle/local"_compute_angle_local.html,
@ -35,6 +36,7 @@ KOKKOS, o = USER-OMP, t = OPT.
"bond/local"_compute_bond_local.html,
"centro/atom"_compute_centro_atom.html,
"chunk/atom"_compute_chunk_atom.html,
"chunk/spread/atom"_compute_chunk_spread_atom.html,
"cluster/atom"_compute_cluster_atom.html,
"cna/atom"_compute_cna_atom.html,
"cnp/atom"_compute_cnp_atom.html,
@ -91,12 +93,15 @@ KOKKOS, o = USER-OMP, t = OPT.
"pe/tally"_compute_tally.html,
"plasticity/atom"_compute_plasticity_atom.html,
"pressure"_compute_pressure.html,
"pressure/cylinder"_compute_pressure_cylinder.html,
"pressure/uef"_compute_pressure_uef.html,
"property/atom"_compute_property_atom.html,
"property/chunk"_compute_property_chunk.html,
"property/local"_compute_property_local.html,
"ptm/atom"_compute_ptm_atom.html,
"rdf"_compute_rdf.html,
"reduce"_compute_reduce.html,
"reduce/chunk"_compute_reduce_chunk.html,
"reduce/region"_compute_reduce.html,
"rigid/local"_compute_rigid_local.html,
"saed"_compute_saed.html,
@ -115,7 +120,7 @@ KOKKOS, o = USER-OMP, t = OPT.
"smd/tlsph/strain"_compute_smd_tlsph_strain.html,
"smd/tlsph/strain/rate"_compute_smd_tlsph_strain_rate.html,
"smd/tlsph/stress"_compute_smd_tlsph_stress.html,
"smd/triangle/mesh/vertices"_compute_smd_triangle_mesh_vertices.html,
"smd/triangle/vertices"_compute_smd_triangle_vertices.html,
"smd/ulsph/num/neighs"_compute_smd_ulsph_num_neighs.html,
"smd/ulsph/strain"_compute_smd_ulsph_strain.html,
"smd/ulsph/strain/rate"_compute_smd_ulsph_strain_rate.html,
@ -126,6 +131,8 @@ KOKKOS, o = USER-OMP, t = OPT.
"snav/atom"_compute_sna_atom.html,
"spin"_compute_spin.html,
"stress/atom"_compute_stress_atom.html,
"stress/mop"_compute_stress_mop.html,
"stress/mop/profile"_compute_stress_mop.html,
"stress/tally"_compute_tally.html,
"tdpd/cc/atom"_compute_tdpd_cc_atom.html,
"temp (k)"_compute_temp.html,
@ -133,6 +140,7 @@ KOKKOS, o = USER-OMP, t = OPT.
"temp/body"_compute_temp_body.html,
"temp/chunk"_compute_temp_chunk.html,
"temp/com"_compute_temp_com.html,
"temp/cs"_compute_temp_cs.html,
"temp/deform"_compute_temp_deform.html,
"temp/deform/eff"_compute_temp_deform_eff.html,
"temp/drude"_compute_temp_drude.html,

View File

@ -40,11 +40,13 @@ OPT.
"ave/time"_fix_ave_time.html,
"aveforce"_fix_aveforce.html,
"balance"_fix_balance.html,
"bocs"_fix_bocs.html,
"bond/break"_fix_bond_break.html,
"bond/create"_fix_bond_create.html,
"bond/react"_fix_bond_react.html,
"bond/swap"_fix_bond_swap.html,
"box/relax"_fix_box_relax.html,
"client/md"_fix_client_md.html,
"cmap"_fix_cmap.html,
"colvars"_fix_colvars.html,
"controller"_fix_controller.html,
@ -54,7 +56,7 @@ OPT.
"drag"_fix_drag.html,
"drude"_fix_drude.html,
"drude/transform/direct"_fix_drude_transform.html,
"drude/transform/reverse"_fix_drude_transform.html,
"drude/transform/inverse"_fix_drude_transform.html,
"dt/reset"_fix_dt_reset.html,
"edpd/source"_fix_dpd_source.html,
"efield"_fix_efield.html,
@ -65,16 +67,19 @@ OPT.
"eos/table/rx (k)"_fix_eos_table_rx.html,
"evaporate"_fix_evaporate.html,
"external"_fix_external.html,
"ffl"_fix_ffl.html,
"filter/corotate"_fix_filter_corotate.html,
"flow/gauss"_fix_flow_gauss.html,
"freeze"_fix_freeze.html,
"freeze (k)"_fix_freeze.html,
"gcmc"_fix_gcmc.html,
"gld"_fix_gld.html,
"gle"_fix_gle.html,
"gravity (o)"_fix_gravity.html,
"gravity (ko)"_fix_gravity.html,
"grem"_fix_grem.html,
"halt"_fix_halt.html,
"heat"_fix_heat.html,
"hyper/global"_fix_hyper_global.html,
"hyper/local"_fix_hyper_local.html,
"imd"_fix_imd.html,
"indent"_fix_indent.html,
"ipi"_fix_ipi.html,
@ -91,6 +96,7 @@ OPT.
"lineforce"_fix_lineforce.html,
"manifoldforce"_fix_manifoldforce.html,
"meso"_fix_meso.html,
"meso/move"_fix_meso_move.html,
"meso/stationary"_fix_meso_stationary.html,
"momentum (k)"_fix_momentum.html,
"move"_fix_move.html,
@ -106,15 +112,16 @@ OPT.
"nph/eff"_fix_nh_eff.html,
"nph/sphere (o)"_fix_nph_sphere.html,
"nphug (o)"_fix_nphug.html,
"npt (kio)"_fix_nh.html,
"npt (iko)"_fix_nh.html,
"npt/asphere (o)"_fix_npt_asphere.html,
"npt/body"_fix_npt_body.html,
"npt/eff"_fix_nh_eff.html,
"npt/sphere (o)"_fix_npt_sphere.html,
"npt/uef"_fix_nh_uef.html,
"nve (kio)"_fix_nve.html,
"nve (iko)"_fix_nve.html,
"nve/asphere (i)"_fix_nve_asphere.html,
"nve/asphere/noforce"_fix_nve_asphere_noforce.html,
"nve/awpmd"_fix_nve_awpmd.html,
"nve/body"_fix_nve_body.html,
"nve/dot"_fix_nve_dot.html,
"nve/dotc/langevin"_fix_nve_dotc_langevin.html,
@ -123,7 +130,7 @@ OPT.
"nve/line"_fix_nve_line.html,
"nve/manifold/rattle"_fix_nve_manifold_rattle.html,
"nve/noforce"_fix_nve_noforce.html,
"nve/sphere (o)"_fix_nve_sphere.html,
"nve/sphere (ko)"_fix_nve_sphere.html,
"nve/spin"_fix_nve_spin.html,
"nve/tri"_fix_nve_tri.html,
"nvk"_fix_nvk.html,
@ -142,6 +149,7 @@ OPT.
"phonon"_fix_phonon.html,
"pimd"_fix_pimd.html,
"planeforce"_fix_planeforce.html,
"plumed"_fix_plumed.html,
"poems"_fix_poems.html,
"pour"_fix_pour.html,
"precession/spin"_fix_precession_spin.html,
@ -168,27 +176,28 @@ OPT.
"restrain"_fix_restrain.html,
"rhok"_fix_rhok.html,
"rigid (o)"_fix_rigid.html,
"rigid/meso"_fix_rigid_meso.html,
"rigid/nph (o)"_fix_rigid.html,
"rigid/nph/small"_fix_rigid.html,
"rigid/npt (o)"_fix_rigid.html,
"rigid/npt/small"_fix_rigid.html,
"rigid/nve (o)"_fix_rigid.html,
"rigid/nve/small"_fix_rigid.html,
"rigid/nvt (o)"_fix_rigid.html,
"rigid/nvt/small"_fix_rigid.html,
"rigid/small (o)"_fix_rigid.html,
"rigid/small/nph"_fix_rigid.html,
"rigid/small/npt"_fix_rigid.html,
"rigid/small/nve"_fix_rigid.html,
"rigid/small/nvt"_fix_rigid.html,
"rx (k)"_fix_rx.html,
"saed/vtk"_fix_saed_vtk.html,
"setforce (k)"_fix_setforce.html,
"shake"_fix_shake.html,
"shardlow (k)"_fix_shardlow.html,
"smd"_fix_smd.html,
"smd/adjust/dt"_fix_smd_adjust_dt.html,
"smd/integrate/tlsph"_fix_smd_integrate_tlsph.html,
"smd/integrate/ulsph"_fix_smd_integrate_ulsph.html,
"smd/move/triangulated/surface"_fix_smd_move_triangulated_surface.html,
"smd/adjust_dt"_fix_smd_adjust_dt.html,
"smd/integrate_tlsph"_fix_smd_integrate_tlsph.html,
"smd/integrate_ulsph"_fix_smd_integrate_ulsph.html,
"smd/move_tri_surf"_fix_smd_move_triangulated_surface.html,
"smd/setvel"_fix_smd_setvel.html,
"smd/wall/surface"_fix_smd_wall_surface.html,
"smd/wall_surface"_fix_smd_wall_surface.html,
"spring"_fix_spring.html,
"spring/chunk"_fix_spring_chunk.html,
"spring/rg"_fix_spring_rg.html,
@ -216,7 +225,7 @@ OPT.
"wall/body/polyhedron"_fix_wall_body_polyhedron.html,
"wall/colloid"_fix_wall.html,
"wall/ees"_fix_wall_ees.html,
"wall/gran"_fix_wall_gran.html,
"wall/gran (o)"_fix_wall_gran.html,
"wall/gran/region"_fix_wall_gran_region.html,
"wall/harmonic"_fix_wall.html,
"wall/lj1043"_fix_wall.html,

View File

@ -26,13 +26,13 @@ OPT.
"none"_pair_none.html,
"zero"_pair_zero.html,
"hybrid"_pair_hybrid.html,
"hybrid (k)"_pair_hybrid.html,
"hybrid/overlay (k)"_pair_hybrid.html :tb(c=4,ea=c)
"adp (o)"_pair_adp.html,
"agni (o)"_pair_agni.html,
"airebo (oi)"_pair_airebo.html,
"airebo/morse (oi)"_pair_airebo.html,
"airebo (io)"_pair_airebo.html,
"airebo/morse (io)"_pair_airebo.html,
"atm"_pair_atm.html,
"awpmd/cut"_pair_awpmd.html,
"beck (go)"_pair_beck.html,
@ -42,21 +42,23 @@ OPT.
"bop"_pair_bop.html,
"born (go)"_pair_born.html,
"born/coul/dsf"_pair_born.html,
"born/coul/dsf/cs"_pair_born.html,
"born/coul/dsf/cs"_pair_cs.html,
"born/coul/long (go)"_pair_born.html,
"born/coul/long/cs"_pair_born.html,
"born/coul/long/cs (g)"_pair_cs.html,
"born/coul/msm (o)"_pair_born.html,
"born/coul/wolf (go)"_pair_born.html,
"born/coul/wolf/cs"_pair_born.html,
"born/coul/wolf/cs (g)"_pair_cs.html,
"brownian (o)"_pair_brownian.html,
"brownian/poly (o)"_pair_brownian.html,
"buck (giko)"_pair_buck.html,
"buck/coul/cut (giko)"_pair_buck.html,
"buck/coul/long (giko)"_pair_buck.html,
"buck/coul/long/cs"_pair_buck.html,
"buck/coul/long/cs"_pair_cs.html,
"buck/coul/msm (o)"_pair_buck.html,
"buck/long/coul/long (o)"_pair_buck_long.html,
"buck/mdf"_pair_mdf.html,
"buck6d/coul/gauss/dsf"_pair_buck6d_coul_gauss.html,
"buck6d/coul/gauss/long"_pair_buck6d_coul_gauss.html,
"colloid (go)"_pair_colloid.html,
"comb (o)"_pair_comb.html,
"comb3"_pair_comb.html,
@ -66,13 +68,13 @@ OPT.
"coul/diel (o)"_pair_coul_diel.html,
"coul/dsf (gko)"_pair_coul.html,
"coul/long (gko)"_pair_coul.html,
"coul/long/cs"_pair_coul.html,
"coul/long/cs (g)"_pair_cs.html,
"coul/long/soft (o)"_pair_lj_soft.html,
"coul/msm"_pair_coul.html,
"coul/msm (o)"_pair_coul.html,
"coul/shield"_pair_coul_shield.html,
"coul/streitz"_pair_coul.html,
"coul/wolf (ko)"_pair_coul.html,
"coul/wolf/cs"_pair_coul.html,
"coul/wolf/cs"_pair_cs.html,
"dpd (gio)"_pair_dpd.html,
"dpd/fdt"_pair_dpd_fdt.html,
"dpd/fdt/energy (k)"_pair_dpd_fdt.html,
@ -81,6 +83,7 @@ OPT.
"eam (gikot)"_pair_eam.html,
"eam/alloy (gikot)"_pair_eam.html,
"eam/cd (o)"_pair_eam.html,
"eam/cd/old (o)"_pair_eam.html,
"eam/fs (gikot)"_pair_eam.html,
"edip (o)"_pair_edip.html,
"edip/multi"_pair_edip.html,
@ -90,11 +93,11 @@ OPT.
"exp6/rx (k)"_pair_exp6_rx.html,
"extep"_pair_extep.html,
"gauss (go)"_pair_gauss.html,
"gauss/cut"_pair_gauss.html,
"gauss/cut (o)"_pair_gauss.html,
"gayberne (gio)"_pair_gayberne.html,
"gran/hertz/history (o)"_pair_gran.html,
"gran/hooke (o)"_pair_gran.html,
"gran/hooke/history (o)"_pair_gran.html,
"gran/hooke/history (ko)"_pair_gran.html,
"gw"_pair_gw.html,
"gw/zbl"_pair_gw.html,
"hbond/dreiding/lj (o)"_pair_hbond_dreiding.html,
@ -109,9 +112,9 @@ OPT.
"list"_pair_list.html,
"lj/charmm/coul/charmm (iko)"_pair_charmm.html,
"lj/charmm/coul/charmm/implicit (ko)"_pair_charmm.html,
"lj/charmm/coul/long (giko)"_pair_charmm.html,
"lj/charmm/coul/long/soft (o)"_pair_charmm.html,
"lj/charmm/coul/msm"_pair_charmm.html,
"lj/charmm/coul/long (gikot)"_pair_charmm.html,
"lj/charmm/coul/long/soft (o)"_pair_lj_soft.html,
"lj/charmm/coul/msm (o)"_pair_charmm.html,
"lj/charmmfsw/coul/charmmfsh"_pair_charmm.html,
"lj/charmmfsw/coul/long"_pair_charmm.html,
"lj/class2 (gko)"_pair_class2.html,
@ -124,12 +127,12 @@ OPT.
"lj/cut/coul/debye (gko)"_pair_lj.html,
"lj/cut/coul/dsf (gko)"_pair_lj.html,
"lj/cut/coul/long (gikot)"_pair_lj.html,
"lj/cut/coul/long/cs"_pair_lj.html,
"lj/cut/coul/long/cs"_pair_cs.html,
"lj/cut/coul/long/soft (o)"_pair_lj_soft.html,
"lj/cut/coul/msm (go)"_pair_lj.html,
"lj/cut/coul/wolf (o)"_pair_lj.html,
"lj/cut/dipole/cut (go)"_pair_dipole.html,
"lj/cut/dipole/long"_pair_dipole.html,
"lj/cut/dipole/long (g)"_pair_dipole.html,
"lj/cut/dipole/sf (go)"_pair_dipole.html,
"lj/cut/soft (o)"_pair_lj_soft.html,
"lj/cut/thole/long (o)"_pair_thole.html,
@ -137,15 +140,17 @@ OPT.
"lj/cut/tip4p/long (ot)"_pair_lj.html,
"lj/cut/tip4p/long/soft (o)"_pair_lj_soft.html,
"lj/expand (gko)"_pair_lj_expand.html,
"lj/expand/coul/long (g)"_pair_lj_expand.html,
"lj/gromacs (gko)"_pair_gromacs.html,
"lj/gromacs/coul/gromacs (ko)"_pair_gromacs.html,
"lj/long/coul/long (io)"_pair_lj_long.html,
"lj/long/coul/long (iot)"_pair_lj_long.html,
"lj/long/dipole/long"_pair_dipole.html,
"lj/long/tip4p/long"_pair_lj_long.html,
"lj/long/tip4p/long (o)"_pair_lj_long.html,
"lj/mdf"_pair_mdf.html,
"lj/sdk (gko)"_pair_sdk.html,
"lj/sdk/coul/long (go)"_pair_sdk.html,
"lj/sdk/coul/msm (o)"_pair_sdk.html,
"lj/sf/dipole/sf (go)"_pair_dipole.html,
"lj/smooth (o)"_pair_lj_smooth.html,
"lj/smooth/linear (o)"_pair_lj_smooth_linear.html,
"lj96/cut (go)"_pair_lj96.html,
@ -160,14 +165,14 @@ OPT.
"meam/spline (o)"_pair_meam_spline.html,
"meam/sw/spline"_pair_meam_sw_spline.html,
"mgpt"_pair_mgpt.html,
"mie/cut (o)"_pair_mie.html,
"mie/cut (g)"_pair_mie.html,
"momb"_pair_momb.html,
"morse (gkot)"_pair_morse.html,
"morse/smooth/linear"_pair_morse.html,
"morse/smooth/linear (o)"_pair_morse.html,
"morse/soft"_pair_morse.html,
"multi/lucy"_pair_multi_lucy.html,
"multi/lucy/rx (k)"_pair_multi_lucy_rx.html,
"nb3b/harmonic (o)"_pair_nb3b_harmonic.html,
"nb3b/harmonic"_pair_nb3b_harmonic.html,
"nm/cut (o)"_pair_nm.html,
"nm/cut/coul/cut (o)"_pair_nm.html,
"nm/cut/coul/long (o)"_pair_nm.html,
@ -179,7 +184,9 @@ OPT.
"oxdna2/coaxstk"_pair_oxdna2.html,
"oxdna2/dh"_pair_oxdna2.html,
"oxdna2/excv"_pair_oxdna2.html,
"oxdna2/hbond"_pair_oxdna2.html,
"oxdna2/stk"_pair_oxdna2.html,
"oxdna2/xstk"_pair_oxdna2.html,
"peri/eps"_pair_peri.html,
"peri/lps (o)"_pair_peri.html,
"peri/pmb (o)"_pair_peri.html,
@ -189,11 +196,12 @@ OPT.
"quip"_pair_quip.html,
"reax"_pair_reax.html,
"reax/c (ko)"_pair_reaxc.html,
"rebo (oi)"_pair_airebo.html,
"rebo (io)"_pair_airebo.html,
"resquared (go)"_pair_resquared.html,
"sdpd/taitwater/isothermal"_pair_sdpd_taitwater_isothermal.html,
"smd/hertz"_pair_smd_hertz.html,
"smd/tlsph"_pair_smd_tlsph.html,
"smd/triangulated/surface"_pair_smd_triangulated_surface.html,
"smd/tri_surface"_pair_smd_triangulated_surface.html,
"smd/ulsph"_pair_smd_ulsph.html,
"smtbq"_pair_smtbq.html,
"snap (k)"_pair_snap.html,
@ -225,8 +233,8 @@ OPT.
"tip4p/long/soft (o)"_pair_lj_soft.html,
"tri/lj"_pair_tri_lj.html,
"ufm (got)"_pair_ufm.html,
"vashishta (ko)"_pair_vashishta.html,
"vashishta (gko)"_pair_vashishta.html,
"vashishta/table (o)"_pair_vashishta.html,
"yukawa (gok)"_pair_yukawa.html,
"yukawa (gko)"_pair_yukawa.html,
"yukawa/colloid (go)"_pair_yukawa_colloid.html,
"zbl (gok)"_pair_zbl.html :tb(c=4,ea=c)
"zbl (gko)"_pair_zbl.html :tb(c=4,ea=c)

View File

@ -22,10 +22,10 @@ users.
LAMMPS source files are in two directories of the distribution
tarball. The src directory has the majority of them, all of which are
C++ files (*.cpp and *.h). Many of these files are in the src
directory itself. There are also dozens of "packages", which can be
directory itself. There are also dozens of ``packages'', which can be
included or excluded when LAMMPS is built. See the
doc/Section\_build.html section of the manual for more information
about packages, or type "make" from within the src directory, which
about packages, or type ``make'' from within the src directory, which
lists package-related commands, such as ``make package-status''. The
source files for each package are in an all-uppercase sub-directory of
src, like src/MOLECULE or src/USER-CUDA. If the package is currently
@ -38,17 +38,17 @@ The lib directory also contains source code for external libraries,
used by a few of the packages. Each sub-directory, like meam or gpu,
contains the source files, some of which are in different languages
such as Fortran. The files are compiled into libraries from within
each sub-directory, e.g. performing a "make" in the lib/meam directory
each sub-directory, e.g. performing a ``make'' in the lib/meam directory
creates a libmeam.a file. These libraries are linked to during a
LAMMPS build, if the corresponding package is installed.
LAMMPS C++ source files almost always come in pairs, such as run.cpp
and run.h. The pair of files defines a C++ class, the Run class in
this case, which contains the code invoked by the "run" command in a
this case, which contains the code invoked by the ``run'' command in a
LAMMPS input script. As this example illustrates, source file and
class names often have a one-to-one correspondence with a command used
in a LAMMPS input script. Some source files and classes do not have a
corresponding input script command, e.g. force.cpp and the Force
corresponding input script command, e.g. ``force.cpp'' and the Force
class. They are discussed in the next section.
\pagebreak
@ -57,12 +57,12 @@ class. They are discussed in the next section.
Though LAMMPS has a lot of source files and classes, its class
hierarchy is quite simple, as outlined in Fig \ref{fig:classes}. Each
boxed name refers to a class and has a pair of associated source files
in lammps/src, e.g. memory.cpp and memory.h. More details on the
in lammps/src, e.g. ``memory.cpp'' and ``memory.h''. More details on the
class and its methods and data structures can be found by examining
its *.h file.
LAMMPS (lammps.cpp/h) is the top-level class for the entire code. It
holds an "instance" of LAMMPS and can be instantiated one or more
holds an ``instance'' of LAMMPS and can be instantiated one or more
times by a calling code. For example, the file src/main.cpp simply
instantiates one instance of LAMMPS and passes it the input script.
@ -81,7 +81,7 @@ enabled by a bit of cleverness in the Pointers class (see
src/pointers.h) which every class inherits from.
There are a handful of virtual parent classes in LAMMPS that define
what LAMMPS calls "styles". They are shaded red in Fig
what LAMMPS calls ``styles''. They are shaded red in Fig
\ref{fig:classes}. Each of these are parents of a number of child
classes that implement the interface defined by the parent class. For
example, the fix style has around 100 child classes. They are the
@ -89,17 +89,17 @@ possible fixes that can be specified by the fix command in an input
script, e.g. fix nve, fix shake, fix ave/time, etc. The corresponding
classes are Fix (for the parent class), FixNVE, FixShake, FixAveTime,
etc. The source files for these classes are easy to identify in the
src directory, since they begin with the word "fix", e,g,
src directory, since they begin with the word ``fix'', e,g,
fix\_nve.cpp, fix\_shake,cpp, fix\_ave\_time.cpp, etc.
The one exception is child class files for the "command" style. These
The one exception is child class files for the ``command'' style. These
implement specific commands in the input script that can be invoked
before/after/between runs or which launch a simulation. Examples are
the create\_box, minimize, run, and velocity commands which encode the
CreateBox, Minimize, Run, and Velocity classes. The corresponding
files are create\_box,cpp, minimize.cpp, run.cpp, and velocity.cpp.
The list of command style files can be found by typing "grep
COMMAND\_CLASS *.h" from within the src directory, since that word in
The list of command style files can be found by typing ``grep
COMMAND\_CLASS *.h'' from within the src directory, since that word in
the header file identifies the class as an input script command.
Similar words can be grepped to list files for the other LAMMPS
styles. E.g. ATOM\_CLASS, PAIR\_CLASS, BOND\_CLASS, REGION\_CLASS,
@ -471,13 +471,13 @@ FixStyle(your/fix/name,FixMine)
\end{verbatim}
\end{center}
Where "your/fix/name" is a name of your fix in the script and FixMine
Where ``your/fix/name'' is a name of your fix in the script and FixMine
is the name of the class. This code allows LAMMPS to find your fix
when it parses input script. In addition, your fix header must be
included in the file "style\_fix.h". In case if you use LAMMPS make,
included in the file ``style\_fix.h''. In case if you use LAMMPS make,
this file is generated automatically - all files starting with prefix
fix\_ are included, so call your header the same way. Otherwise, don't
forget to add your include into "style\_fix.h".
forget to add your include into ``style\_fix.h''.
Let's write a simple fix which will print average velocity at the end
of each timestep. First of all, implement a constructor:
@ -567,11 +567,11 @@ void FixPrintVel::end_of_step()
\end{center}
In the code above, we use MathExtra routines defined in
"math\_extra.h". There are bunch of math functions to work with
``math\_extra.h''. There are bunch of math functions to work with
arrays of doubles as with math vectors.
In this code we use an instance of Atom class. This object is stored
in the Pointers class (see "pointers.h"). This object contains all
in the Pointers class (see ``pointers.h''). This object contains all
global information about the simulation system. Data from Pointers
class available to all classes inherited from it using protected
inheritance. Hence when you write you own class, which is going to use
@ -689,7 +689,7 @@ int FixSavePos::unpack_exchange(int nlocal, double *buf)
Now, a little bit about memory allocation. We used Memory class which
is just a bunch of template functions for allocating 1D and 2D
arrays. So you need to add include "memory.h" to have access to them.
arrays. So you need to add include ``memory.h'' to have access to them.
Finally, if you need to write/read some global information used in
your fix to the restart file, you might do it by setting flag

BIN
doc/src/Eqs/ptm_rmsd.jpg Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 6.7 KiB

21
doc/src/Eqs/ptm_rmsd.tex Normal file
View File

@ -0,0 +1,21 @@
\documentclass[12pt,article]{article}
\usepackage{indentfirst}
\usepackage{amsmath}
\newcommand{\set}[1]{\ensuremath{\mathbf{#1}}}
\newcommand{\mean}[1]{\ensuremath{\overline{#1}}}
\newcommand{\norm}[1]{\ensuremath{\left|\left|{#1}\right|\right|}}
\begin{document}
\begin{equation*}
\text{RMSD}(\set{u}, \set{v}) = \min_{s, \set{Q}} \sqrt{\frac{1}{N} \sum\limits_{i=1}^{N}
\norm{
s[\vec{u_i} - \mean{\set{u}}]
-
\set{Q} \vec{v_i}
}^2}
\end{equation*}
\end{document}

View File

@ -1092,11 +1092,6 @@ correct. :dd
The specified file cannot be opened. Check that the path and name are
correct. :dd
{Cannot open fix ave/spatial file %s} :dt
The specified file cannot be opened. Check that the path and name are
correct. :dd
{Cannot open fix ave/time file %s} :dt
The specified file cannot be opened. Check that the path and name are
@ -1677,10 +1672,6 @@ provided by an atom map. An atom map does not exist (by default) for
non-molecular problems. Using the atom_modify map command will force
an atom map to be created. :dd
{Cannot use fix ave/spatial z for 2 dimensional model} :dt
Self-explanatory. :dd
{Cannot use fix bond/break with non-molecular systems} :dt
Only systems with bonds that can be changed can be used. Atom_style
@ -2425,10 +2416,6 @@ Self-explanatory. :dd
Self-explanatory. :dd
{Compute ID for fix ave/spatial does not exist} :dt
Self-explanatory. :dd
{Compute ID for fix ave/time does not exist} :dt
Self-explanatory. :dd
@ -4074,10 +4061,6 @@ Self-explanatory. :dd
Self-explanatory. :dd
{Fix ID for fix ave/spatial does not exist} :dt
Self-explanatory. :dd
{Fix ID for fix ave/time does not exist} :dt
Self-explanatory. :dd
@ -4379,51 +4362,6 @@ same style. :dd
Self-explanatory. :dd
{Fix ave/spatial compute does not calculate a per-atom array} :dt
Self-explanatory. :dd
{Fix ave/spatial compute does not calculate a per-atom vector} :dt
A compute used by fix ave/spatial must generate per-atom values. :dd
{Fix ave/spatial compute does not calculate per-atom values} :dt
A compute used by fix ave/spatial must generate per-atom values. :dd
{Fix ave/spatial compute vector is accessed out-of-range} :dt
The index for the vector is out of bounds. :dd
{Fix ave/spatial fix does not calculate a per-atom array} :dt
Self-explanatory. :dd
{Fix ave/spatial fix does not calculate a per-atom vector} :dt
A fix used by fix ave/spatial must generate per-atom values. :dd
{Fix ave/spatial fix does not calculate per-atom values} :dt
A fix used by fix ave/spatial must generate per-atom values. :dd
{Fix ave/spatial fix vector is accessed out-of-range} :dt
The index for the vector is out of bounds. :dd
{Fix ave/spatial for triclinic boxes requires units reduced} :dt
Self-explanatory. :dd
{Fix ave/spatial settings invalid with changing box size} :dt
If the box size changes, only the units reduced option can be
used. :dd
{Fix ave/spatial variable is not atom-style variable} :dt
A variable used by fix ave/spatial must generate per-atom values. :dd
{Fix ave/time cannot set output array intensive/extensive from these inputs} :dt
One of more of the vector inputs has individual elements which are

View File

@ -291,24 +291,6 @@ This may cause accuracy problems. :dd
This may cause accuracy problems. :dd
{Fix thermal/conductivity comes before fix ave/spatial} :dt
The order of these 2 fixes in your input script is such that fix
thermal/conductivity comes first. If you are using fix ave/spatial to
measure the temperature profile induced by fix viscosity, then this
may cause a glitch in the profile since you are averaging immediately
after swaps have occurred. Flipping the order of the 2 fixes
typically helps. :dd
{Fix viscosity comes before fix ave/spatial} :dt
The order of these 2 fixes in your input script is such that
fix viscosity comes first. If you are using fix ave/spatial
to measure the velocity profile induced by fix viscosity, then
this may cause a glitch in the profile since you are averaging
immediately after swaps have occurred. Flipping the order
of the 2 fixes typically helps. :dd
{Fixes cannot send data in Kokkos communication, switching to classic communication} :dt
This is current restriction with Kokkos. :dd

View File

@ -22,7 +22,7 @@ commands, to calculate various properties of a system:
"fix ave/chunk"_fix_ave_chunk.html
any of the "compute */chunk"_compute.html commands :ul
Here, each of the 3 kinds of chunk-related commands is briefly
Here, each of the 4 kinds of chunk-related commands is briefly
overviewed. Then some examples are given of how to compute different
properties with chunk commands.
@ -83,8 +83,9 @@ chunk.
Compute */chunk commands: :h4
Currently the following computes operate on chunks of atoms to produce
per-chunk values.
The following computes operate on chunks of atoms to produce per-chunk
values. Any compute whose style name ends in "/chunk" is in this
category:
"compute com/chunk"_compute_com_chunk.html
"compute gyration/chunk"_compute_gyration_chunk.html
@ -111,8 +112,8 @@ of a center of mass, which requires summing mass*position over the
atoms and then dividing by summed mass.
All of these computes produce a global vector or global array as
output, wih one or more values per chunk. They can be used
in various ways:
output, wih one or more values per chunk. The output can be used in
various ways:
As input to the "fix ave/time"_fix_ave_time.html command, which can
write the values to a file and optionally time average them. :ulb,l
@ -122,9 +123,27 @@ histogram values across chunks. E.g. a histogram of cluster sizes or
molecule diffusion rates. :l
As input to special functions of "equal-style
variables"_variable.html, like sum() and max(). E.g. to find the
largest cluster or fastest diffusing molecule. :l
:ule
variables"_variable.html, like sum() and max() and ave(). E.g. to
find the largest cluster or fastest diffusing molecule or average
radius-of-gyration of a set of molecules (chunks). :l,ule
Other chunk commands: :h4
"compute chunk/spread/atom"_compute_chunk_spread_atom.html
"compute reduce/chunk"_compute_reduce_chunk.html :ul
The "compute chunk/spread/atom"_compute_chunk_spread_atom.html command
spreads per-chunk values to each atom in the chunk, producing per-atom
values as its output. This can be useful for outputting per-chunk
values to a per-atom "dump file"_dump.html. Or for using an atom's
associated chunk value in an "atom-style variable"_variable.html.
The "compute reduce/chunk"_compute_reduce_chunk.html command reduces a
peratom value across the atoms in each chunk to produce a value per
chunk. When used with the "compute
chunk/spread/atom"_compute_chunk_spread_atom.html command it can
create peratom values that induce a new set of chunks with a second
"compute chunk/atom"_compute_chunk_atom.html command.
Example calculations with chunks :h4
@ -164,3 +183,13 @@ compute cluster all cluster/atom 1.0
compute cc1 all chunk/atom c_cluster compress yes
compute size all property/chunk cc1 count
fix 1 all ave/histo 100 1 100 0 20 20 c_size mode vector ave running beyond ignore file tmp.histo :pre
(6) An example of using a per-chunk value to apply per-atom forces to
compress individual polymer chains (molecules) in a mixture, is
explained on the "compute
chunk/spread/atom"_compute_chunk_spread_atom.html command doc page.
(7) An example of using one set of per-chunk values for molecule
chunks, to create a 2nd set of micelle-scale chunks (clustered
molecules, due to hydrophobicity), is explained on the "compute
chunk/reduce"_compute_reduce_chunk.html command doc page.

View File

@ -7,7 +7,7 @@ Documentation"_ld - "LAMMPS Commands"_lc :c
:line
Using LAMMPS in client/server mode
Using LAMMPS in client/server mode :h3
Client/server coupling of two codes is where one code is the "client"
and sends request messages to a "server" code. The server responds to
@ -61,7 +61,7 @@ client or server.
"message"_message.html
"fix client md"_fix_client_md.html = LAMMPS is a client for running MD
"server md"_server_md.html = LAMMPS is a server for computing MD forces
"server mc"_server_mc.html = LAMMPS is a server for computing a Monte Carlo energy
"server mc"_server_mc.html = LAMMPS is a server for computing a Monte Carlo energy :ul
The server doc files give details of the message protocols
for data that is exchanged bewteen the client and server.
@ -119,7 +119,7 @@ For message exchange in {mpi/one} mode:
Launch both codes in a single mpirun command:
mpirun -np 2 lmp_mpi -mpicolor 0 -in in.message.client -log log.client : -np 4 lmp_mpi -mpicolor 1 -in in.message.server -log log.server
mpirun -np 2 lmp_mpi -mpicolor 0 -in in.message.client -log log.client : -np 4 lmp_mpi -mpicolor 1 -in in.message.server -log log.server :pre
The two -np values determine how many procs the client and the server
run on.

View File

@ -24,6 +24,11 @@ by subtracting out the streaming velocity of the shearing atoms. The
velocity profile or other properties of the fluid can be monitored via
the "fix ave/chunk"_fix_ave_chunk.html command.
NOTE: A recent (2017) book by "(Daivis and Todd)"_#Daivis-nemd
discusses use of the SLLOD method and non-equilibrium MD (NEMD)
thermostatting generally, for both simple and complex fluids,
e.g. molecular systems. The latter can be tricky to do correctly.
As discussed in the previous section on non-orthogonal simulation
boxes, the amount of tilt or skew that can be applied is limited by
LAMMPS for computational efficiency to be 1/2 of the parallel box
@ -46,3 +51,9 @@ An alternative method for calculating viscosities is provided via the
NEMD simulations can also be used to measure transport properties of a fluid
through a pore or channel. Simulations of steady-state flow can be performed
using the "fix flow/gauss"_fix_flow_gauss.html command.
:line
:link(Daivis-nemd)
[(Daivis and Todd)] Daivis and Todd, Nonequilibrium Molecular Dyanmics (book),
Cambridge University Press, https://doi.org/10.1017/9781139017848, (2017).

View File

@ -43,6 +43,11 @@ nvt/asphere"_fix_nvt_asphere.html thermostat not only translation
velocities but also rotational velocities for spherical and aspherical
particles.
NOTE: A recent (2017) book by "(Daivis and Todd)"_#Daivis-thermostat
discusses use of the SLLOD method and non-equilibrium MD (NEMD)
thermostatting generally, for both simple and complex fluids,
e.g. molecular systems. The latter can be tricky to do correctly.
DPD thermostatting alters pairwise interactions in a manner analogous
to the per-particle thermostatting of "fix
langevin"_fix_langevin.html.
@ -87,3 +92,9 @@ specify them explicitly via the "thermo_style
custom"_thermo_style.html command. Or you can use the
"thermo_modify"_thermo_modify.html command to re-define what
temperature compute is used for default thermodynamic output.
:line
:link(Daivis-thermostat)
[(Daivis and Todd)] Daivis and Todd, Nonequilibrium Molecular Dyanmics (book),
Cambridge University Press, https://doi.org/10.1017/9781139017848, (2017).

View File

@ -37,6 +37,11 @@ used to shear the fluid in between them, again with some kind of
thermostat that modifies only the thermal (non-shearing) components of
velocity to prevent the fluid from heating up.
NOTE: A recent (2017) book by "(Daivis and Todd)"_#Daivis-viscosity
discusses use of the SLLOD method and non-equilibrium MD (NEMD)
thermostatting generally, for both simple and complex fluids,
e.g. molecular systems. The latter can be tricky to do correctly.
In both cases, the velocity profile setup in the fluid by this
procedure can be monitored by the "fix ave/chunk"_fix_ave_chunk.html
command, which determines grad(Vstream) in the equation above.
@ -131,3 +136,9 @@ mean-square-displacement formulation for self-diffusivity. The
time-integrated momentum fluxes play the role of Cartesian
coordinates, whose mean-square displacement increases linearly
with time at sufficiently long times.
:line
:link(Daivis-viscosity)
[(Daivis and Todd)] Daivis and Todd, Nonequilibrium Molecular Dyanmics (book),
Cambridge University Press, https://doi.org/10.1017/9781139017848, (2017).

View File

@ -9,39 +9,16 @@ Documentation"_ld - "LAMMPS Commands"_lc :c
Download an executable for Linux :h3
Binaries are available for many different versions of Linux:
Binaries are available for different versions of Linux:
"Pre-built binary RPMs for Fedora/RedHat/CentOS/openSUSE"_#rpm
"Pre-built Ubuntu Linux executables"_#ubuntu
"Pre-built Fedora Linux executables"_#fedora
"Pre-built EPEL Linux executables (RHEL, CentOS)"_#epel
"Pre-built OpenSuse Linux executables"_#opensuse
"Pre-built Gentoo Linux executable"_#gentoo :all(b)
:line
Pre-built binary RPMs for Fedora/RedHat/CentOS/openSUSE :h4,link(rpm)
Pre-built LAMMPS executables for various Linux distributions
can be downloaded as binary RPM files from this site:
"http://rpm.lammps.org"_http://rpm.lammps.org
There are multiple package variants supporting serial, parallel and
Python wrapper versions. The LAMMPS binaries contain all optional
packages included in the source distribution except: GPU, KIM, REAX,
and USER-INTEL.
Installation instructions for the various versions are here:
"http://rpm.lammps.org/install.html"_http://rpm.lammps.org/install.html
The instructions show how to enable the repository in the respective
system's package management system. Installing and updating are then
straightforward and automatic.
Thanks to Axel Kohlmeyer (Temple U, akohlmey at gmail.com) for setting
up this RPM capability.
:line
Pre-built Ubuntu Linux executables :h4,link(ubuntu)
A pre-built LAMMPS executable suitable for running on the latest
@ -60,10 +37,10 @@ To install LAMMPS do the following once:
sudo apt-get install lammps-daily :pre
This downloads an executable named "lammps-daily" to your box, which
This downloads an executable named "lmp_daily" to your box, which
can then be used in the usual way to run input scripts:
lammps-daily < in.lj :pre
lmp_daily -in in.lj :pre
To update LAMMPS to the most current version, do the following:
@ -99,6 +76,80 @@ Ubuntu package capability.
:line
Pre-built Fedora Linux executables :h4,link(fedora)
Pre-built LAMMPS packages for stable releases are available
in the Fedora Linux distribution as of version 28. The packages
can be installed via the dnf package manager. There are 3 basic
varieties (lammps = no MPI, lammps-mpich = MPICH MPI library,
lammps-openmpi = OpenMPI MPI library) and for each support for
linking to the C library interface (lammps-devel, lammps-mpich-devel,
lammps-openmpi-devel), the header for compiling programs using
the C library interface (lammps-headers), and the LAMMPS python
module for Python 3. All packages can be installed at the same
time and the name of the LAMMPS executable is {lmp} in all 3 cases.
By default, {lmp} will refer to the serial executable, unless
one of the MPI environment modules is loaded
("module load mpi/mpich-x86_64" or "module load mpi/openmpi-x86_64").
Then the corresponding parallel LAMMPS executable is used.
The same mechanism applies when loading the LAMMPS python module.
To install LAMMPS with OpenMPI and run an input in.lj with 2 CPUs do:
dnf install lammps-openmpi
module load mpi/openmpi-x86_64
mpirun -np 2 lmp -in in.lj :pre
The "dnf install" command is needed only once. In case of a new LAMMPS
stable release, "dnf update" will automatically update to the newer
version as soon at the RPM files are built and uploaded to the download
mirrors. The "module load" command is needed once per (shell) session
or shell terminal instance, unless it is automatically loaded from the
shell profile.
Please use "lmp -help" to see which compilation options, packages,
and styles are included in the binary.
Thanks to Christoph Junghans (LANL) for making LAMMPS available in Fedora.
:line
Pre-built EPEL Linux executable :h4,link(epel)
Pre-built LAMMPS packages for stable releases are available
in the "Extra Packages for Enterprise Linux (EPEL) repository"_https://fedoraproject.org/wiki/EPEL
for use with Red Hat Enterprise Linux (RHEL) or CentOS version 7.x
and compatible Linux distributions. Names of packages, executable,
and content are the same as described above for Fedora Linux.
But RHEL/CentOS 7.x uses the "yum" package manager instead of "dnf"
in Fedora 28.
Please use "lmp -help" to see which compilation options, packages,
and styles are included in the binary.
Thanks to Christoph Junghans (LANL) for making LAMMPS available in EPEL.
:line
Pre-built OpenSuse Linux executable :h4,link(opensuse)
A pre-built LAMMPS package for stable releases is available
in OpenSuse as of Leap 15.0. You can install the package with:
zypper install lammps :pre
This includes support for OpenMPI. The name of the LAMMPS executable
is {lmp}. Thus to run an input in parallel on 2 CPUs you would do:
mpirun -np 2 lmp -in in.lj :pre
Please use "lmp -help" to see which compilation options, packages,
and styles are included in the binary.
Thanks to Christoph Junghans (LANL) for making LAMMPS available in OpenSuse.
:line
Pre-built Gentoo Linux executable :h4,link(gentoo)
LAMMPS is part of Gentoo's main package tree and can be installed by

View File

@ -49,7 +49,8 @@ Lennard-Jones benchmark file:
% brew test lammps -v :pre
If you have problems with the installation you can post issues to
"this link"_https://github.com/Homebrew/homebrew-science/issues.
"this link"_homebrew.
Thanks to Derek Thomas (derekt at cello.t.u-tokyo.ac.jp) for setting
up the Homebrew capability.
:link(homebrew,https://github.com/Homebrew/homebrew-science/issues)

View File

@ -7,7 +7,7 @@ Documentation"_ld - "LAMMPS Commands"_lc :c
:line
Download source as a tarball :h3
Download source and documentation as a tarball :h3
You can download a current LAMMPS tarball from the "download page"_download
of the "LAMMPS website"_lws.
@ -22,6 +22,10 @@ few times per year, and undergo more testing before release. Patch
releases occur a couple times per month. The new contents in all
releases are listed on the "bug and feature page"_bug of the website.
Both tarballs include LAMMPS documentation (HTML and PDF files)
corresponding to that version. The download page also has an option
to download the current-version LAMMPS documentation by itself.
Older versions of LAMMPS can also be downloaded from "this
page"_older.

View File

@ -1,7 +1,7 @@
<!-- HTML_ONLY -->
<HEAD>
<TITLE>LAMMPS Users Manual</TITLE>
<META NAME="docnumber" CONTENT="5 Sep 2018 version">
<META NAME="docnumber" CONTENT="15 Nov 2018 version">
<META NAME="author" CONTENT="http://lammps.sandia.gov - Sandia National Laboratories">
<META NAME="copyright" CONTENT="Copyright (2003) Sandia Corporation. This software and manual is distributed under the GNU General Public License.">
</HEAD>
@ -21,7 +21,7 @@
:line
LAMMPS Documentation :c,h1
5 Sep 2018 version :c,h2
15 Nov 2018 version :c,h2
"What is a LAMMPS version?"_Manual_version.html

View File

@ -46,6 +46,7 @@ as contained in the file name.
"MANYBODY"_#PKG-MANYBODY,
"MC"_#PKG-MC,
"MEAM"_#PKG-MEAM,
"MESSAGE"_#PKG-MESSAGE,
"MISC"_#PKG-MISC,
"MOLECULE"_#PKG-MOLECULE,
"MPIIO"_#PKG-MPIIO,
@ -88,11 +89,14 @@ as contained in the file name.
"USER-NETCDF"_#PKG-USER-NETCDF,
"USER-OMP"_#PKG-USER-OMP,
"USER-PHONON"_#PKG-USER-PHONON,
"USER-PLUMED"_#PKG-USER-PLUMED,
"USER-PTM"_#PKG-USER-PTM,
"USER-QMMM"_#PKG-USER-QMMM,
"USER-QTB"_#PKG-USER-QTB,
"USER-QUIP"_#PKG-USER-QUIP,
"USER-REAXC"_#PKG-USER-REAXC,
"USER-SCAFACOS"_#USER-SCAFACOS,
"USER-SCAFACOS"_#PKG-USER-SCAFACOS,
"USER-SDPD"_#PKG-USER-SDPD,
"USER-SMD"_#PKG-USER-SMD,
"USER-SMTBQ"_#PKG-USER-SMTBQ,
"USER-SPH"_#PKG-USER-SPH,
@ -460,10 +464,10 @@ dynamics can be run with LAMMPS using density-functional tight-binding
quantum forces calculated by LATTE.
More information on LATTE can be found at this web site:
"https://github.com/lanl/LATTE"_latte_home. A brief technical
"https://github.com/lanl/LATTE"_latte-home. A brief technical
description is given with the "fix latte"_fix_latte.html command.
:link(latte_home,https://github.com/lanl/LATTE)
:link(latte-home,https://github.com/lanl/LATTE)
[Authors:] Christian Negre (LANL) and Steve Plimpton (Sandia). LATTE
itself is developed at Los Alamos National Laboratory by Marc
@ -666,9 +670,9 @@ MSCG package :link(PKG-mscg),h4
A "fix mscg"_fix_mscg.html command which can parameterize a
Multi-Scale Coarse-Graining (MSCG) model using the open-source "MS-CG
library"_mscg_home.
library"_mscg-home.
:link(mscg_home,https://github.com/uchicago-voth/MSCG-release)
:link(mscg-home,https://github.com/uchicago-voth/MSCG-release)
To use this package you must have the MS-CG library available on your
system.
@ -1006,11 +1010,11 @@ VORONOI package :link(PKG-VORONOI),h4
[Contents:]
A compute command which calculates the Voronoi tesselation of a
collection of atoms by wrapping the "Voro++ library"_voro_home. This
collection of atoms by wrapping the "Voro++ library"_voro-home. This
can be used to calculate the local volume or each atoms or its near
neighbors.
:link(voro_home,http://math.lbl.gov/voro++)
:link(voro-home,http://math.lbl.gov/voro++)
To use this package you must have the Voro++ library available on your
system.
@ -1184,7 +1188,7 @@ the NAMD MD code, but with portability in mind. Axel Kohlmeyer
[Install:]
This package has "specific installation
instructions"_Build_extras.html#gpu on the "Build
instructions"_Build_extras.html#user-colvars on the "Build
extras"_Build_extras.html doc page.
[Supporting info:]
@ -1198,6 +1202,36 @@ examples/USER/colvars :ul
:line
USER-PLUMED package :link(PKG-USER-PLUMED),h4
[Contents:]
The fix plumed command allows you to use the PLUMED free energy plugin
for molecular dynamics to analyse and bias your LAMMPS trajectory on
the fly. The PLUMED library is called from within the LAMMPS input
script by using the "fix plumed _fix_plumed.html command.
[Authors:] The "PLUMED library"_#PLUMED is written and maintained by
Massimilliano Bonomi, Giovanni Bussi, Carlo Camiloni and Gareth
Tribello.
:link(PLUMED,http://www.plumed.org)
[Install:]
This package has "specific installation
instructions"_Build_extras.html#gpu on the "Build
extras"_Build_extras.html doc page.
[Supporting info:]
src/USER-PLUMED/README
lib/plumed/README
"fix plumed"_fix_plumed.html
examples/USER/plumed :ul
:line
USER-DIFFRACTION package :link(PKG-USER-DIFFRACTION),h4
[Contents:]
@ -1518,7 +1552,7 @@ USER-MEAMC package :link(PKG-USER-MEAMC),h4
[Contents:]
A pair style for the modified embedded atom (MEAM) potential
translated from the Fortran version in the "MEAM"_MEAM package
translated from the Fortran version in the "MEAM"_#PKG-MEAM package
to plain C++. In contrast to the MEAM package, no library
needs to be compiled and the pair style can be instantiated
multiple times.
@ -1599,7 +1633,7 @@ USER-MOLFILE package :link(PKG-USER-MOLFILE),h4
[Contents:]
A "dump molfile"_dump_molfile.html command which uses molfile plugins
that are bundled with the "VMD"_vmd_home
that are bundled with the "VMD"_vmd-home
molecular visualization and analysis program, to enable LAMMPS to dump
snapshots in formats compatible with various molecular simulation
tools.
@ -1651,11 +1685,11 @@ Note that NetCDF files can be directly visualized with the following
tools:
"Ovito"_ovito (Ovito supports the AMBER convention and the extensions mentioned above)
"VMD"_vmd_home
"VMD"_vmd-home
"AtomEye"_atomeye (the libAtoms version of AtomEye contains a NetCDF reader not present in the standard distribution) :ul
:link(ovito,http://www.ovito.org)
:link(vmd_home,https://www.ks.uiuc.edu/Research/vmd/)
:link(vmd-home,https://www.ks.uiuc.edu/Research/vmd/)
:link(atomeye,http://www.libatoms.org)
[Author:] Lars Pastewka (Karlsruhe Institute of Technology).
@ -1743,6 +1777,25 @@ examples/USER/phonon :ul
:line
USER-PTM package :link(PKG-USER-PTM),h4
[Contents:]
A "compute ptm/atom"_compute_ptm_atom.html command that calculates
local structure characterization using the Polyhedral Template
Matching methodology.
[Author:] Peter Mahler Larsen (MIT).
[Supporting info:]
src/USER-PTM: filenames not starting with ptm_ -> commands
src/USER-PTM: filenames starting with ptm_ -> supporting code
src/USER-PTM/LICENSE
"compute ptm/atom"_compute_ptm_atom.html :ul
:line
USER-QMMM package :link(PKG-USER-QMMM),h4
[Contents:]
@ -1860,7 +1913,7 @@ examples/reax :ul
:line
USER-SCAFACOS package :link(USER-SCAFACOS),h4
USER-SCAFACOS package :link(PKG-USER-SCAFACOS),h4
[Contents:]
@ -1895,6 +1948,31 @@ examples/USER/scafacos :ul
:line
USER-SDPD package :link(PKG-USER-SDPD),h4
[Contents:]
A pair style for smoothed dissipative particle dynamics (SDPD), which
is an extension of smoothed particle hydrodynamics (SPH) to mesoscale
where thermal fluctuations are important (see the
"USER-SPH package"_#PKG-USER-SPH).
Also two fixes for moving and rigid body integration of SPH/SDPD particles
(particles of atom_style meso).
[Author:] Morteza Jalalvand (Institute for Advanced Studies in Basic
Sciences, Iran).
[Supporting info:]
src/USER-SDPD: filenames -> commands
src/USER-SDPD/README
"pair_style sdpd/taitwater/isothermal"_pair_sdpd_taitwater_isothermal.html
"fix meso/move"_fix_meso_move.html
"fix rigid/meso"_fix_rigid_meso.html
examples/USER/sdpd :ul
:line
USER-SMD package :link(PKG-USER-SMD),h4
[Contents:]

View File

@ -62,14 +62,20 @@ Package, Description, Doc page, Example, Library
"USER-NETCDF"_Packages_details.html#PKG-USER-NETCDF, dump output via NetCDF,"dump netcdf"_dump_netcdf.html, n/a, ext
"USER-OMP"_Packages_details.html#PKG-USER-OMP, OpenMP-enabled styles,"Speed omp"_Speed_omp.html, "Benchmarks"_http://lammps.sandia.gov/bench.html, no
"USER-PHONON"_Packages_details.html#PKG-USER-PHONON, phonon dynamical matrix,"fix phonon"_fix_phonon.html, USER/phonon, no
"USER-PLUMED"_Packages_details.html#PKG-USER-PLUMED, "PLUMED"_#PLUMED free energy library,"fix plumed"_fix_plumed.html, USER/plumed, ext
"USER-PTM"_Packages_details.html#PKG-USER-PTM, Polyhedral Template Matching,"compute ptm/atom"_compute_ptm_atom.html, n/a, no
"USER-QMMM"_Packages_details.html#PKG-USER-QMMM, QM/MM coupling,"fix qmmm"_fix_qmmm.html, USER/qmmm, ext
"USER-QTB"_Packages_details.html#PKG-USER-QTB, quantum nuclear effects,"fix qtb"_fix_qtb.html "fix qbmsst"_fix_qbmsst.html, qtb, no
"USER-QUIP"_Packages_details.html#PKG-USER-QUIP, QUIP/libatoms interface,"pair_style quip"_pair_quip.html, USER/quip, ext
"USER-REAXC"_Packages_details.html#PKG-USER-REAXC, ReaxFF potential (C/C++) ,"pair_style reaxc"_pair_reaxc.html, reax, no
"USER-SCAFACOS"_Packages_details.html#PKG-USER-SCAFACOS, wrapper on ScaFaCoS solver,"kspace_style scafacos"_kspace_style.html, USER/scafacos, ext
"USER-SDPD"_Packages_details.html#PKG-USER-SDPD, smoothed dissipative particle dynamics,"pair_style sdpd/taitwater/isothermal"_pair_sdpd_taitwater_isothermal.html, USER/sdpd, no
"USER-SMD"_Packages_details.html#PKG-USER-SMD, smoothed Mach dynamics,"SMD User Guide"_PDF/SMD_LAMMPS_userguide.pdf, USER/smd, ext
"USER-SMTBQ"_Packages_details.html#PKG-USER-SMTBQ, second moment tight binding QEq potential,"pair_style smtbq"_pair_smtbq.html, USER/smtbq, no
"USER-SPH"_Packages_details.html#PKG-USER-SPH, smoothed particle hydrodynamics,"SPH User Guide"_PDF/SPH_LAMMPS_userguide.pdf, USER/sph, no
"USER-TALLY"_Packages_details.html#PKG-USER-TALLY, pairwise tally computes,"compute XXX/tally"_compute_tally.html, USER/tally, no
"USER-UEF"_Packages_details.html#PKG-USER-UEF, extensional flow,"fix nvt/uef"_fix_nh_uef.html, USER/uef, no
"USER-VTK"_Packages_details.html#PKG-USER-VTK, dump output via VTK, "compute vtk"_dump_vtk.html, n/a, ext :tb(ea=c,ca1=l)
:link(MOFplus,https://www.mofplus.org/content/show/MOF-FF)
:link(PLUMED,http://www.plumed.org)

View File

@ -24,8 +24,9 @@ letter abbreviation can be used:
"-p or -partition"_#partition
"-pl or -plog"_#plog
"-ps or -pscreen"_#pscreen
"-r or -restart"_#restart
"-ro or -reorder"_#reorder
"-r2data or -restart2data"_#restart2data
"-r2dump or -restart2dump"_#restart2dump
"-sc or -screen"_#screen
"-sf or -suffix"_#suffix
"-v or -var"_#var :ul
@ -176,7 +177,7 @@ Option -plog will override the name of the partition log files file.N.
:line
[-mpicolor] color :link(mpi)
[-mpicolor] color :link(mpicolor)
If used, this must be the first command-line argument after the LAMMPS
executable name. It is only used when LAMMPS is launched by an mpirun
@ -280,34 +281,6 @@ specified by the -screen command-line option.
:line
[-restart restartfile {remap} datafile keyword value ...] :link(restart)
Convert the restart file into a data file and immediately exit. This
is the same operation as if the following 2-line input script were
run:
read_restart restartfile {remap}
write_data datafile keyword value ... :pre
Note that the specified restartfile and datafile can have wild-card
characters ("*",%") as described by the
"read_restart"_read_restart.html and "write_data"_write_data.html
commands. But a filename such as file.* will need to be enclosed in
quotes to avoid shell expansion of the "*" character.
Note that following restartfile, the optional flag {remap} can be
used. This has the same effect as adding it to the
"read_restart"_read_restart.html command, as explained on its doc
page. This is only useful if the reading of the restart file triggers
an error that atoms have been lost. In that case, use of the remap
flag should allow the data file to still be produced.
Also note that following datafile, the same optional keyword/value
pairs can be listed as used by the "write_data"_write_data.html
command.
:line
[-reorder] :link(reorder)
This option has 2 forms:
@ -381,6 +354,77 @@ the LAMMPS simulation domain.
:line
[-restart2data restartfile (remap) datafile keyword value ...] :link(restart2data)
Convert the restart file into a data file and immediately exit. This
is the same operation as if the following 2-line input script were
run:
read_restart restartfile (remap)
write_data datafile keyword value ... :pre
Note that the specified restartfile and/or datafile can have the
wild-card character "*". The restartfile can also have the wild-card
character "%". The meaning of these characters is explained on the
"read_restart"_read_restart.html and "write_data"_write_data.html doc
pages. The use of "%" means that a parallel restart file can be read.
Note that a filename such as file.* will need to be enclosed in quotes
to avoid shell expansion of the "*" character.
Note that following restartfile, the optional word "remap" can be
used. This has the effect of adding it to the
"read_restart"_read_restart.html command, as explained on its doc
page. This is useful if reading the restart file triggers an error
that atoms have been lost. In that case, use of the remap flag should
allow the data file to still be produced.
The syntax following restartfile (or remap), namely
datafile keyword value ... :pre
is identical to the arguments of the "write_data"_write_data.html
command. See its doc page for details. This includes its
optional keyword/value settings.
:line
[-restart2dump restartfile {remap} group-ID dumpstyle dumpfile arg1 arg2 ...] :link(restart2dump)
Convert the restart file into a dump file and immediately exit. This
is the same operation as if the following 2-line input script were
run:
read_restart restartfile (remap)
write_dump group-ID dumpstyle dumpfile arg1 arg2 ... :pre
Note that the specified restartfile and dumpfile can have wild-card
characters ("*","%") as explained on the
"read_restart"_read_restart.html and "write_dump"_write_dump.html doc
pages. The use of "%" means that a parallel restart file and/or
parallel dump file can be read and/or written. Note that a filename
such as file.* will need to be enclosed in quotes to avoid shell
expansion of the "*" character.
Note that following restartfile, the optional word "remap" can be
used. This has the effect as adding it to the
"read_restart"_read_restart.html command, as explained on its doc
page. This is useful if reading the restart file triggers an error
that atoms have been lost. In that case, use of the remap flag should
allow the dump file to still be produced.
The syntax following restartfile (or remap), namely
group-ID dumpstyle dumpfile arg1 arg2 ... :pre
is identical to the arguments of the "write_dump"_write_dump.html
command. See its doc page for details. This includes what per-atom
fields are written to the dump file and optional dump_modify settings,
including ones that affect how parallel dump files are written, e.g.
the {nfile} and {fileper} keywords. See the
"dump_modify"_dump_modify.html doc page for details.
:line
[-screen file] :link(screen)
Specify a file for LAMMPS to write its screen information to. In

View File

@ -499,7 +499,7 @@ MPI task.
When offloading to a coprocessor, "hybrid"_pair_hybrid.html styles
that require skip lists for neighbor builds cannot be offloaded.
Using "hybrid/overlay"_pair_hybrid.html is allowed. Only one intel
accelerated style may be used with hybrid styles.
accelerated style may be used with hybrid styles when offloading.
"Special_bonds"_special_bonds.html exclusion lists are not currently
supported with offload, however, the same effect can often be
accomplished by setting cutoffs for excluded atom types to 0. None of

View File

@ -106,6 +106,11 @@ modification to the input script is needed. Alternatively, one can run
with the KOKKOS package by editing the input script as described
below.
NOTE: When using a single OpenMP thread, the Kokkos Serial backend (i.e.
Makefile.kokkos_mpi_only) will give better performance than the OpenMP
backend (i.e. Makefile.kokkos_omp) because some of the overhead to make
the code thread-safe is removed.
NOTE: The default for the "package kokkos"_package.html command is to
use "full" neighbor lists and set the Newton flag to "off" for both
pairwise and bonded interactions. However, when running on CPUs, it
@ -122,6 +127,22 @@ mpirun -np 16 lmp_kokkos_mpi_only -k on -sf kk -pk kokkos newton on neigh half c
If the "newton"_newton.html command is used in the input
script, it can also override the Newton flag defaults.
For half neighbor lists and OpenMP, the KOKKOS package uses data
duplication (i.e. thread-private arrays) by default to avoid
thread-level write conflicts in the force arrays (and other data
structures as necessary). Data duplication is typically fastest for
small numbers of threads (i.e. 8 or less) but does increase memory
footprint and is not scalable to large numbers of threads. An
alternative to data duplication is to use thread-level atomics, which
don't require duplication. The use of atomics can be forced by compiling
with the "-DLMP_KOKKOS_USE_ATOMICS" compile switch. Most but not all
Kokkos-enabled pair_styles support data duplication. Alternatively, full
neighbor lists avoid the need for duplication or atomics but require
more compute operations per atom. When using the Kokkos Serial backend
or the OpenMP backend with a single thread, no duplication or atomics are
used. For CUDA and half neighbor lists, the KOKKOS package always uses
atomics.
[Core and Thread Affinity:]
When using multi-threading, it is important for performance to bind

View File

@ -7,8 +7,8 @@
:line
angle_style class2 command :h3
angle_style class2/omp command :h3
angle_style class2/kk command :h3
angle_style class2/omp command :h3
angle_style class2/p6 command :h3
[Syntax:]

View File

@ -38,10 +38,10 @@ Theta0 (degrees) :ul
Theta0 is specified in degrees, but LAMMPS converts it to radians
internally.
Additional to the cosine term the {cosine/buck6d} angle style computes
the short range (vdW) interaction belonging to the
"pair_buck6d"_pair_buck6d_coul_gauss.html between the end atoms of
the angle. For this reason this angle style only works in combination
Additional to the cosine term the {cosine/buck6d} angle style computes
the short range (vdW) interaction belonging to the
"pair_buck6d"_pair_buck6d_coul_gauss.html between the end atoms of the
angle. For this reason this angle style only works in combination
with the "pair_buck6d"_pair_buck6d_coul_gauss.html styles and needs
the "special_bonds"_special_bonds.html 1-3 interactions to be weighted
0.0 to prevent double counting.

View File

@ -7,6 +7,7 @@
:line
angle_style sdk command :h3
angle_style sdk/omp command :h3
[Syntax:]
@ -43,6 +44,30 @@ internally; hence the units of K are in energy/radian^2.
The also required {lj/sdk} parameters will be extracted automatically
from the pair_style.
:line
Styles with a {gpu}, {intel}, {kk}, {omp}, or {opt} suffix are
functionally the same as the corresponding style without the suffix.
They have been optimized to run faster, depending on your available
hardware, as discussed on the "Speed packages"_Speed_packages.html doc
page. The accelerated styles take the same arguments and should
produce the same results, except for round-off and precision issues.
These accelerated styles are part of the GPU, USER-INTEL, KOKKOS,
USER-OMP and OPT packages, respectively. They are only enabled if
LAMMPS was built with those packages. See the "Build
package"_Build_package.html doc page for more info.
You can specify the accelerated styles explicitly in your input script
by including their suffix, or you can use the "-suffix command-line
switch"_Run_options.html when you invoke LAMMPS, or you can use the
"suffix"_suffix.html command in your input script.
See the "Speed packages"_Speed_packages.html doc page for more
instructions on how to use the accelerated styles effectively.
:line
[Restrictions:]
This angle style can only be used if LAMMPS was built with the

View File

@ -62,18 +62,27 @@ which are included in the LAMMPS distribution. The full list of all
angle styles are is on the "Commands bond"_Commands_bond.html#angle
doc page.
"angle_style none"_angle_none.html - turn off angle interactions
"angle_style zero"_angle_zero.html - topology but no interactions
"angle_style hybrid"_angle_hybrid.html - define multiple styles of angle interactions :ul
"none"_angle_none.html - turn off angle interactions
"zero"_angle_zero.html - topology but no interactions
"hybrid"_angle_hybrid.html - define multiple styles of angle interactions :ul
"angle_style charmm"_angle_charmm.html - CHARMM angle
"angle_style class2"_angle_class2.html - COMPASS (class 2) angle
"angle_style cosine"_angle_cosine.html - cosine angle potential
"angle_style cosine/delta"_angle_cosine_delta.html - difference of cosines angle potential
"angle_style cosine/periodic"_angle_cosine_periodic.html - DREIDING angle
"angle_style cosine/squared"_angle_cosine_squared.html - cosine squared angle potential
"angle_style harmonic"_angle_harmonic.html - harmonic angle
"angle_style table"_angle_table.html - tabulated by angle :ul
"charmm"_angle_charmm.html - CHARMM angle
"class2"_angle_class2.html - COMPASS (class 2) angle
"class2/p6"_angle_class2.html - COMPASS (class 2) angle expanded to 6th order
"cosine"_angle_cosine.html - angle with cosine term
"cosine/buck6d"_angle_cosine_buck6d.html - same as cosine with Buckingham term between 1-3 atoms
"cosine/delta"_angle_cosine_delta.html - angle with difference of cosines
"cosine/periodic"_angle_cosine_periodic.html - DREIDING angle
"cosine/shift"_angle_cosine_shift.html - angle cosine with a shift
"cosine/shift/exp"_angle_cosine_shift_exp.html - cosine with shift and exponential term in spring constant
"cosine/squared"_angle_cosine_squared.html - angle with cosine squared term
"dipole"_angle_dipole.html - angle that controls orientation of a point dipole
"fourier"_angle_fourier.html - angle with multiple cosine terms
"fourier/simple"_angle_fourier_simple.html - angle with a single cosine term
"harmonic"_angle_harmonic.html - harmonic angle
"quartic"_angle_quartic.html - angle with cubic and quartic terms
"sdk"_angle_sdk.html - harmonic angle with repulsive SDK pair style between 1-3 atoms
"table"_angle_table.html - tabulated by angle :ul
:line

View File

@ -516,3 +516,4 @@ appear in {dimstr} for the {shift} style.
"fix balance"_fix_balance.html
[Default:] none
:link(pizza,http://pizza.sandia.gov)

View File

@ -28,34 +28,44 @@ The {oxdna/fene} and {oxdna2/fene} bond styles use the potential
:c,image(Eqs/bond_oxdna_fene.jpg)
to define a modified finite extensible nonlinear elastic (FENE) potential
"(Ouldridge)"_#oxdna_fene to model the connectivity of the phosphate backbone
in the oxDNA force field for coarse-grained modelling of DNA.
to define a modified finite extensible nonlinear elastic (FENE)
potential "(Ouldridge)"_#oxdna_fene to model the connectivity of the
phosphate backbone in the oxDNA force field for coarse-grained
modelling of DNA.
The following coefficients must be defined for the bond type via the
"bond_coeff"_bond_coeff.html command as given in the above example, or in
the data file or restart files read by the "read_data"_read_data.html
or "read_restart"_read_restart.html commands:
"bond_coeff"_bond_coeff.html command as given in the above example, or
in the data file or restart files read by the
"read_data"_read_data.html or "read_restart"_read_restart.html
commands:
epsilon (energy)
Delta (distance)
r0 (distance) :ul
NOTE: The oxDNA bond style has to be used together with the corresponding oxDNA pair styles
for excluded volume interaction {oxdna/excv}, stacking {oxdna/stk}, cross-stacking {oxdna/xstk}
and coaxial stacking interaction {oxdna/coaxstk} as well as hydrogen-bonding interaction {oxdna/hbond} (see also documentation of
"pair_style oxdna/excv"_pair_oxdna.html). For the oxDNA2 "(Snodin)"_#oxdna2 bond style the analogous pair styles and an additional Debye-Hueckel pair
style {oxdna2/dh} have to be defined.
The coefficients in the above example have to be kept fixed and cannot be changed without reparametrizing the entire model.
NOTE: The oxDNA bond style has to be used together with the
corresponding oxDNA pair styles for excluded volume interaction
{oxdna/excv}, stacking {oxdna/stk}, cross-stacking {oxdna/xstk} and
coaxial stacking interaction {oxdna/coaxstk} as well as
hydrogen-bonding interaction {oxdna/hbond} (see also documentation of
"pair_style oxdna/excv"_pair_oxdna.html). For the oxDNA2
"(Snodin)"_#oxdna2 bond style the analogous pair styles and an
additional Debye-Hueckel pair style {oxdna2/dh} have to be defined.
The coefficients in the above example have to be kept fixed and cannot
be changed without reparametrizing the entire model.
Example input and data files for DNA duplexes can be found in examples/USER/cgdna/examples/oxDNA/ and /oxDNA2/.
A simple python setup tool which creates single straight or helical DNA strands,
DNA duplexes or arrays of DNA duplexes can be found in examples/USER/cgdna/util/.
Example input and data files for DNA duplexes can be found in
examples/USER/cgdna/examples/oxDNA/ and /oxDNA2/. A simple python
setup tool which creates single straight or helical DNA strands, DNA
duplexes or arrays of DNA duplexes can be found in
examples/USER/cgdna/util/.
Please cite "(Henrich)"_#Henrich2 and the relevant oxDNA articles in any publication that uses this implementation.
The article contains more information on the model, the structure of the input file, the setup tool
and the performance of the LAMMPS-implementation of oxDNA.
The preprint version of the article can be found "here"_PDF/USER-CGDNA.pdf.
Please cite "(Henrich)"_#Henrich2 and the relevant oxDNA articles in
any publication that uses this implementation. The article contains
more information on the model, the structure of the input file, the
setup tool and the performance of the LAMMPS-implementation of oxDNA.
The preprint version of the article can be found
"here"_PDF/USER-CGDNA.pdf.
:line
@ -65,20 +75,25 @@ This bond style can only be used if LAMMPS was built with the
USER-CGDNA package and the MOLECULE and ASPHERE package. See the
"Build package"_Build_package.html doc page for more info.
[Related commands:]
"pair_style oxdna/excv"_pair_oxdna.html, "pair_style oxdna2/excv"_pair_oxdna2.html, "fix nve/dotc/langevin"_fix_nve_dotc_langevin.html, "bond_coeff"_bond_coeff.html
"pair_style oxdna/excv"_pair_oxdna.html, "pair_style
oxdna2/excv"_pair_oxdna2.html, "fix
nve/dotc/langevin"_fix_nve_dotc_langevin.html,
"bond_coeff"_bond_coeff.html
[Default:] none
:line
:link(Henrich2)
[(Henrich)] O. Henrich, Y. A. Gutierrez-Fosado, T. Curk, T. E. Ouldridge, Eur. Phys. J. E 41, 57 (2018).
[(Henrich)] O. Henrich, Y. A. Gutierrez-Fosado, T. Curk,
T. E. Ouldridge, Eur. Phys. J. E 41, 57 (2018).
:link(oxdna_fene)
[(Ouldridge)] T.E. Ouldridge, A.A. Louis, J.P.K. Doye, J. Chem. Phys. 134, 085101 (2011).
[(Ouldridge)] T.E. Ouldridge, A.A. Louis, J.P.K. Doye,
J. Chem. Phys. 134, 085101 (2011).
:link(oxdna2)
[(Snodin)] B.E. Snodin, F. Randisi, M. Mosayebi, et al., J. Chem. Phys. 142, 234901 (2015).
[(Snodin)] B.E. Snodin, F. Randisi, M. Mosayebi, et al.,
J. Chem. Phys. 142, 234901 (2015).

View File

@ -69,18 +69,23 @@ Note that there are also additional bond styles submitted by users
which are included in the LAMMPS distribution. The full list of all
bond styles is on the "Commands bond"_Commands_bond.html doc page.
"bond_style none"_bond_none.html - turn off bonded interactions
"bond_style zero"_bond_zero.html - topology but no interactions
"bond_style hybrid"_bond_hybrid.html - define multiple styles of bond interactions :ul
"none"_bond_none.html - turn off bonded interactions
"zero"_bond_zero.html - topology but no interactions
"hybrid"_bond_hybrid.html - define multiple styles of bond interactions :ul
"bond_style class2"_bond_class2.html - COMPASS (class 2) bond
"bond_style fene"_bond_fene.html - FENE (finite-extensible non-linear elastic) bond
"bond_style fene/expand"_bond_fene_expand.html - FENE bonds with variable size particles
"bond_style harmonic"_bond_harmonic.html - harmonic bond
"bond_style morse"_bond_morse.html - Morse bond
"bond_style nonlinear"_bond_nonlinear.html - nonlinear bond
"bond_style quartic"_bond_quartic.html - breakable quartic bond
"bond_style table"_bond_table.html - tabulated by bond length :ul
"class2"_bond_class2.html - COMPASS (class 2) bond
"fene"_bond_fene.html - FENE (finite-extensible non-linear elastic) bond
"fene/expand"_bond_fene_expand.html - FENE bonds with variable size particles
"gromos"_bond_gromos.html - GROMOS force field bond
"harmonic"_bond_harmonic.html - harmonic bond
"harmonic/shift"_bond_harmonic_shift.html - shifted harmonic bond
"harmonic/shift/cut"_bond_harmonic_shift_cut.html - shifted harmonic bond with a cutoff
"morse"_bond_morse.html - Morse bond
"nonlinear"_bond_nonlinear.html - nonlinear bond
"oxdna/fene"_bond_oxdna.html - modified FENE bond suitable for DNA modeling
"oxdna2/fene"_bond_oxdna.html - same as oxdna but used with different pair styles
"quartic"_bond_quartic.html - breakable quartic bond
"table"_bond_table.html - tabulated by bond length :ul
:line

View File

@ -44,6 +44,7 @@ Commands :h1
fix_modify
group
group2ndx
hyper
if
improper_coeff
improper_style
@ -89,6 +90,8 @@ Commands :h1
run
run_style
server
server_mc
server_md
set
shell
special_bonds

View File

@ -175,40 +175,64 @@ The individual style names on the "Commands
compute"_Commands_compute.html doc page are followed by one or more of
(g,i,k,o,t) to indicate which accelerated styles exist.
"ackland/atom"_compute_ackland_atom.html -
"adf"_compute_adf.html - angular distribution function
"aggregate/atom"_compute_cluster_atom.html - aggregate ID for each atom
"angle"_compute_angle.html -
"angle/local"_compute_angle_local.html -
"angle/local"_compute_bond_local.html - theta and energy of each angle
"angmom/chunk"_compute_angmom_chunk.html - angular momentum for each chunk
"basal/atom"_compute_basal_atom.html -
"body/local"_compute_body_local.html - attributes of body sub-particles
"bond"_compute_bond.html - values computed by a bond style
"bond/local"_compute_bond_local.html - distance and energy of each bond
"centro/atom"_compute_centro_atom.html - centro-symmetry parameter for each atom
"chunk/atom"_compute_chunk_atom.html - assign chunk IDs to each atom
"chunk/spread/atom"_compute_chunk_spread_atom.html - spreads chunk values to each atom in chunk
"cluster/atom"_compute_cluster_atom.html - cluster ID for each atom
"cna/atom"_compute_cna_atom.html - common neighbor analysis (CNA) for each atom
"cnp/atom"_compute_cnp_atom.html -
"com"_compute_com.html - center-of-mass of group of atoms
"com/chunk"_compute_com_chunk.html - center-of-mass for each chunk
"contact/atom"_compute_contact_atom.html - contact count for each spherical particle
"coord/atom"_compute_coord_atom.html - coordination number for each atom
"damage/atom"_compute_damage_atom.html - Peridynamic damage for each atom
"dihedral"_compute_dihedral.html -
"dihedral/local"_compute_dihedral_local.html - angle of each dihedral
"dilatation/atom"_compute_dilatation_atom.html - Peridynamic dilatation for each atom
"dipole/chunk"_compute_dipole_chunk.html -
"displace/atom"_compute_displace_atom.html - displacement of each atom
"dpd"_compute_dpd.html -
"dpd/atom"_compute_dpd_atom.html -
"edpd/temp/atom"_compute_edpd_temp_atom.html -
"entropy/atom"_compute_entropy_atom.html -
"erotate/asphere"_compute_erotate_asphere.html - rotational energy of aspherical particles
"erotate/rigid"_compute_erotate_rigid.html - rotational energy of rigid bodies
"erotate/sphere"_compute_erotate_sphere.html - rotational energy of spherical particles
"erotate/sphere/atom"_compute_erotate_sphere.html - rotational energy for each spherical particle
"erotate/sphere/atom"_compute_erotate_sphere_atom.html -
"event/displace"_compute_event_displace.html - detect event on atom displacement
"fep"_compute_fep.html -
"force/tally"_compute_tally.html -
"fragment/atom"_compute_cluster_atom.html - fragment ID for each atom
"global/atom"_compute_global_atom.html -
"group/group"_compute_group_group.html - energy/force between two groups of atoms
"gyration"_compute_gyration.html - radius of gyration of group of atoms
"gyration/chunk"_compute_gyration_chunk.html - radius of gyration for each chunk
"heat/flux"_compute_heat_flux.html - heat flux through a group of atoms
"heat/flux/tally"_compute_tally.html -
"hexorder/atom"_compute_hexorder_atom.html - bond orientational order parameter q6
"improper"_compute_improper.html -
"improper/local"_compute_improper_local.html - angle of each improper
"inertia/chunk"_compute_inertia_chunk.html - inertia tensor for each chunk
"ke"_compute_ke.html - translational kinetic energy
"ke/atom"_compute_ke_atom.html - kinetic energy for each atom
"ke/atom/eff"_compute_ke_atom_eff.html -
"ke/eff"_compute_ke_eff.html -
"ke/rigid"_compute_ke_rigid.html - translational kinetic energy of rigid bodies
"meso/e/atom"_compute_meso_e_atom.html -
"meso/rho/atom"_compute_meso_rho_atom.html -
"meso/t/atom"_compute_meso_t_atom.html -
"msd"_compute_msd.html - mean-squared displacement of group of atoms
"msd/chunk"_compute_msd_chunk.html - mean-squared displacement for each chunk
"msd/nongauss"_compute_msd_nongauss.html - MSD and non-Gaussian parameter of group of atoms
@ -218,36 +242,77 @@ compute"_Commands_compute.html doc page are followed by one or more of
"pair/local"_compute_pair_local.html - distance/energy/force of each pairwise interaction
"pe"_compute_pe.html - potential energy
"pe/atom"_compute_pe_atom.html - potential energy for each atom
"pe/mol/tally"_compute_tally.html -
"pe/tally"_compute_tally.html -
"plasticity/atom"_compute_plasticity_atom.html - Peridynamic plasticity for each atom
"pressure"_compute_pressure.html - total pressure and pressure tensor
"pressure/cylinder"_compute_pressure_cylinder.html -
"pressure/uef"_compute_pressure_uef.html -
"property/atom"_compute_property_atom.html - convert atom attributes to per-atom vectors/arrays
"property/local"_compute_property_local.html - convert local attributes to localvectors/arrays
"property/chunk"_compute_property_chunk.html - extract various per-chunk attributes
"property/local"_compute_property_local.html - convert local attributes to localvectors/arrays
"ptm/atom"_compute_ptm_atom.html -
"rdf"_compute_rdf.html - radial distribution function g(r) histogram of group of atoms
"reduce"_compute_reduce.html - combine per-atom quantities into a single global value
"reduce/chunk"_compute_reduce_chunk.html - reduce per-atom quantities within each chunk
"reduce/region"_compute_reduce.html - same as compute reduce, within a region
"rigid/local"_compute_rigid_local.html - extract rigid body attributes
"saed"_compute_saed.html -
"slice"_compute_slice.html - extract values from global vector or array
"smd/contact/radius"_compute_smd_contact_radius.html -
"smd/damage"_compute_smd_damage.html -
"smd/hourglass/error"_compute_smd_hourglass_error.html -
"smd/internal/energy"_compute_smd_internal_energy.html -
"smd/plastic/strain"_compute_smd_plastic_strain.html -
"smd/plastic/strain/rate"_compute_smd_plastic_strain_rate.html -
"smd/rho"_compute_smd_rho.html -
"smd/tlsph/defgrad"_compute_smd_tlsph_defgrad.html -
"smd/tlsph/dt"_compute_smd_tlsph_dt.html -
"smd/tlsph/num/neighs"_compute_smd_tlsph_num_neighs.html -
"smd/tlsph/shape"_compute_smd_tlsph_shape.html -
"smd/tlsph/strain"_compute_smd_tlsph_strain.html -
"smd/tlsph/strain/rate"_compute_smd_tlsph_strain_rate.html -
"smd/tlsph/stress"_compute_smd_tlsph_stress.html -
"smd/triangle/vertices"_compute_smd_triangle_vertices.html -
"smd/triangle/vertices"_compute_smd_triangle_vertices.html -
"smd/ulsph/num/neighs"_compute_smd_ulsph_num_neighs.html -
"smd/ulsph/strain"_compute_smd_ulsph_strain.html -
"smd/ulsph/strain/rate"_compute_smd_ulsph_strain_rate.html -
"smd/ulsph/stress"_compute_smd_ulsph_stress.html -
"smd/vol"_compute_smd_vol.html -
"sna/atom"_compute_sna_atom.html - calculate bispectrum coefficients for each atom
"snad/atom"_compute_sna_atom.html - derivative of bispectrum coefficients for each atom
"snav/atom"_compute_sna_atom.html - virial contribution from bispectrum coefficients for each atom
"spin"_compute_spin.html -
"stress/atom"_compute_stress_atom.html - stress tensor for each atom
"stress/mop"_compute_stress_mop.html -
"stress/mop/profile"_compute_stress_mop.html -
"stress/tally"_compute_tally.html -
"tdpd/cc/atom"_compute_tdpd_cc_atom.html -
"temp"_compute_temp.html - temperature of group of atoms
"temp/asphere"_compute_temp_asphere.html - temperature of aspherical particles
"temp/body"_compute_temp_body.html - temperature of body particles
"temp/chunk"_compute_temp_chunk.html - temperature of each chunk
"temp/com"_compute_temp_com.html - temperature after subtracting center-of-mass velocity
"temp/cs"_compute_temp_cs.html -
"temp/deform"_compute_temp_deform.html - temperature excluding box deformation velocity
"temp/deform/eff"_compute_temp_deform_eff.html -
"temp/drude"_compute_temp_drude.html -
"temp/eff"_compute_temp_eff.html -
"temp/partial"_compute_temp_partial.html - temperature excluding one or more dimensions of velocity
"temp/profile"_compute_temp_profile.html - temperature excluding a binned velocity profile
"temp/ramp"_compute_temp_ramp.html - temperature excluding ramped velocity component
"temp/region"_compute_temp_region.html - temperature of a region of atoms
"temp/region/eff"_compute_temp_region_eff.html -
"temp/rotate"_compute_temp_rotate.html -
"temp/sphere"_compute_temp_sphere.html - temperature of spherical particles
"temp/uef"_compute_temp_uef.html -
"ti"_compute_ti.html - thermodynamic integration free energy values
"torque/chunk"_compute_torque_chunk.html - torque applied on each chunk
"vacf"_compute_vacf.html - velocity-autocorrelation function of group of atoms
"vcm/chunk"_compute_vcm_chunk.html - velocity of center-of-mass for each chunk
"voronoi/atom"_compute_voronoi_atom.html - Voronoi volume and neighbors for each atom :ul
"voronoi/atom"_compute_voronoi_atom.html - Voronoi volume and neighbors for each atom
"xrd"_compute_xrd.html - :ul
[Restrictions:] none

213
doc/src/compute_adf.txt Normal file
View File

@ -0,0 +1,213 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
compute adf command :h3
[Syntax:]
compute ID group-ID adf Nbin itype1 jtype1 ktype1 Rjinner1 Rjouter1 Rkinner1 Rkouter1 ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
adf = style name of this compute command :l
Nbin = number of ADF bins :l
itypeN = central atom type for Nth ADF histogram (see asterisk form below) :l
jtypeN = J atom type for Nth ADF histogram (see asterisk form below) :l
ktypeN = K atom type for Nth ADF histogram (see asterisk form below) :l
RjinnerN = inner radius of J atom shell for Nth ADF histogram (distance units) :l
RjouterN = outer radius of J atom shell for Nth ADF histogram (distance units) :l
RkinnerN = inner radius of K atom shell for Nth ADF histogram (distance units) :l
RkouterN = outer radius of K atom shell for Nth ADF histogram (distance units) :l
zero or one keyword/value pairs may be appended :l
keyword = {ordinate} :l
{ordinate} value = {degree} or {radian} or {cosine}
Choose the ordinate parameter for the histogram :pre
:ule
[Examples:]
compute 1 fluid adf 32 1 1 1 0.0 1.2 0.0 1.2 &
1 1 2 0.0 1.2 0.0 1.5 &
1 2 2 0.0 1.5 0.0 1.5 &
2 1 1 0.0 1.2 0.0 1.2 &
2 1 2 0.0 1.5 2.0 3.5 &
2 2 2 2.0 3.5 2.0 3.5
compute 1 fluid adf 32 1*2 1*2 1*2 0.5 3.5
compute 1 fluid adf 32 :pre
[Description:]
Define a computation that calculates one or more angular distribution functions
(ADF) for a group of particles. Each ADF is calculated in histogram form
by measuring the angle formed by a central atom and two neighbor atoms and
binning these angles into {Nbin} bins.
Only neighbors for which {Rinner} < {R} < {Router} are counted, where
{Rinner} and {Router} are specified separately for the first and second
neighbor atom in each requested ADF.
NOTE: If you have a bonded system, then the settings of
"special_bonds"_special_bonds.html command can remove pairwise
interactions between atoms in the same bond, angle, or dihedral. This
is the default setting for the "special_bonds"_special_bonds.html
command, and means those pairwise interactions do not appear in the
neighbor list. Because this fix uses a neighbor list, it also means
those pairs will not be included in the ADF. This does not apply when
using long-range coulomb interactions ({coul/long}, {coul/msm},
{coul/wolf} or similar. One way to get around this would be to set
special_bond scaling factors to very tiny numbers that are not exactly
zero (e.g. 1.0e-50). Another workaround is to write a dump file, and
use the "rerun"_rerun.html command to compute the ADF for snapshots in
the dump file. The rerun script can use a
"special_bonds"_special_bonds.html command that includes all pairs in
the neighbor list.
NOTE: If you request any outer cutoff {Router} > force cutoff, or if no
pair style is defined, e.g. the "rerun"_rerun.html command is being used to
post-process a dump file of snapshots you must insure ghost atom information
out to the largest value of {Router} + {skin} is communicated, via the
"comm_modify cutoff"_comm_modify.html command, else the ADF computation
cannot be performed, and LAMMPS will give an error message. The {skin} value
is what is specified with the "neighbor"_neighbor.html command.
The {itypeN},{jtypeN},{ktypeN} settings can be specified in one of two
ways. An explicit numeric value can be used, as in the 1st example
above. Or a wild-card asterisk can be used to specify a range of atom
types as in the 2nd example above.
This takes the form "*" or "*n" or "n*" or "m*n". If N = the
number of atom types, then an asterisk with no numeric values means
all types from 1 to N. A leading asterisk means all types from 1 to n
(inclusive). A trailing asterisk means all types from n to N
(inclusive). A middle asterisk means all types from m to n
(inclusive).
If {itypeN}, {jtypeN}, and {ktypeN} are single values, as in the 1st example
above, this means that the ADF is computed where atoms of type {itypeN}
are the central atom, and neighbor atoms of type {jtypeN} and {ktypeN}
are forming the angle. If any of {itypeN}, {jtypeN}, or {ktypeN}
represent a range of values via
the wild-card asterisk, as in the 2nd example above, this means that the
ADF is computed where atoms of any of the range of types represented
by {itypeN} are the central atom, and the angle is formed by two neighbors,
one neighbor in the range of types represented by {jtypeN} and another neighbor
in the range of types represented by {ktypeN}.
If no {itypeN}, {jtypeN}, {ktypeN} settings are specified, then
LAMMPS will generate a single ADF for all atoms in the group.
The inner cutoff is set to zero and the outer cutoff is set
to the force cutoff. If no pair_style is specified, there is no
force cutoff and LAMMPS will give an error message. Note that
in most cases, generating an ADF for all atoms is not a good thing.
Such an ADF is both uninformative and
extremely expensive to compute. For example, with liquid water
with a 10 A force cutoff, there are 80,000 angles per atom.
In addition, most of the interesting angular structure occurs for
neighbors that are the closest to the central atom, involving
just a few dozen angles.
Angles for each ADF are generated by double-looping over the list of
neighbors of each central atom I,
just as they would be in the force calculation for
a threebody potential such as "Stillinger-Weber"_pair_sw.html.
The angle formed by central atom I and neighbor atoms J and K is included in an
ADF if the following criteria are met:
atoms I,J,K are all in the specified compute group
the distance between atoms I,J is between Rjinner and Rjouter
the distance between atoms I,K is between Rkinner and Rkouter
the type of the I atom matches itypeN (one or a range of types)
atoms I,J,K are distinct
the type of the J atom matches jtypeN (one or a range of types)
the type of the K atom matches ktypeN (one or a range of types) :ul
Each unique angle satisfying the above criteria is counted only once, regardless
of whether either or both of the neighbor atoms making up the
angle appear in both the J and K lists.
It is OK if a particular angle is included in more than
one individual histogram, due to the way the {itypeN}, {jtypeN}, {ktypeN}
arguments are specified.
The first ADF value for a bin is calculated from the histogram count by
dividing by the total number of triples satisfying the criteria,
so that the integral of the ADF w.r.t. angle is 1, i.e. the ADF
is a probability density function.
The second ADF value is reported as a cumulative sum of
all bins up to the current bins, averaged
over atoms of type {itypeN}. It represents the
number of angles per central atom with angle less
than or equal to the angle of the current bin,
analogous to the coordination
number radial distribution function.
The {ordinate} optional keyword determines
whether the bins are of uniform angular size from zero
to 180 ({degree}), zero to Pi ({radian}), or the
cosine of the angle uniform in the range \[-1,1\] ({cosine}).
{cosine} has the advantage of eliminating the {acos()} function
call, which speeds up the compute by 2-3x, and it is also preferred
on physical grounds, because the for uniformly distributed particles
in 3D, the angular probability density w.r.t dtheta is
sin(theta)/2, while for d(cos(theta)), it is 1/2,
Regardless of which ordinate is chosen, the first column of ADF
values is normalized w.r.t. the range of that ordinate, so that
the integral is 1.
The simplest way to output the results of the compute adf calculation
to a file is to use the "fix ave/time"_fix_ave_time.html command, for
example:
compute myADF all adf 32 2 2 2 0.5 3.5 0.5 3.5
fix 1 all ave/time 100 1 100 c_myADF\[*\] file tmp.adf mode vector :pre
[Output info:]
This compute calculates a global array with the number of rows =
{Nbins}, and the number of columns = 1 + 2*Ntriples, where Ntriples is the
number of I,J,K triples specified. The first column has the bin
coordinate (angle-related ordinate at midpoint of bin). Each subsequent column has
the two ADF values for a specific set of ({itypeN},{jtypeN},{ktypeN})
interactions, as described above. These values can be used
by any command that uses a global values from a compute as input. See
the "Howto output"_Howto_output.html doc page for an overview of
LAMMPS output options.
The array values calculated by this compute are all "intensive".
The first column of array values is the angle-related ordinate, either
the angle in degrees or radians, or the cosine of the angle. Each
subsequent pair of columns gives the first and second kinds of ADF
for a specific set of ({itypeN},{jtypeN},{ktypeN}). The values
in the first ADF column are normalized numbers >= 0.0,
whose integral w.r.t. the ordinate is 1,
i.e. the first ADF is a normalized probability distribution.
The values in the second ADF column are also numbers >= 0.0.
They are the cumulative density distribution of angles per atom.
By definition, this ADF is monotonically increasing from zero to
a maximum value equal to the average total number of
angles per atom satisfying the ADF criteria.
[Restrictions:]
The ADF is not computed for neighbors outside the force cutoff,
since processors (in parallel) don't know about atom coordinates for
atoms further away than that distance. If you want an ADF for larger
distances, you can use the "rerun"_rerun.html command to post-process
a dump file and set the cutoff for the potential to be longer in the
rerun script. Note that in the rerun context, the force cutoff is
arbitrary, since you aren't running dynamics and thus are not changing
your model.
[Related commands:]
"compute rdf"_compute_rdf.html, "fix ave/time"_fix_ave_time.html, "compute_modify"_compute_modify.html
[Default:]
The keyword default is ordinate = degree.

View File

@ -10,20 +10,27 @@ compute angle/local command :h3
[Syntax:]
compute ID group-ID angle/local value1 value2 ... :pre
compute ID group-ID angle/local value1 value2 ... keyword args ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
angle/local = style name of this compute command :l
one or more values may be appended :l
value = {theta} or {eng} :l
value = {theta} or {eng} or {v_name} :l
{theta} = tabulate angles
{eng} = tabulate angle energies :pre
{eng} = tabulate angle energies
{v_name} = equal-style variable with name (see below) :pre
zero or more keyword/args pairs may be appended :l
keyword = {set} :l
{set} args = theta name
theta = only currently allowed arg
name = name of variable to set with theta :pre
:ule
[Examples:]
compute 1 all angle/local theta
compute 1 all angle/local eng theta :pre
compute 1 all angle/local eng theta
compute 1 all angle/local theta v_cos set theta t :pre
[Description:]
@ -36,6 +43,47 @@ The value {theta} is the angle for the 3 atoms in the interaction.
The value {eng} is the interaction energy for the angle.
The value {v_name} can be used together with the {set} keyword to
compute a user-specified function of the angle theta. The {name}
specified for the {v_name} value is the name of an "equal-style
variable"_variable.html which should evaluate a formula based on a
variable which will store the angle theta. This other variable must
be an "internal-style variable"_variable.html defined in the input
script; its initial numeric value can be anything. It must be an
internal-style variable, because this command resets its value
directly. The {set} keyword is used to identify the name of this
other variable associated with theta.
Note that the value of theta for each angle which stored in the
internal variable is in radians, not degrees.
As an example, these commands can be added to the bench/in.rhodo
script to compute the cosine and cosine^2 of every angle in the system
and output the statistics in various ways:
variable t internal 0.0
variable cos equal cos(v_t)
variable cossq equal cos(v_t)*cos(v_t) :pre
compute 1 all property/local aatom1 aatom2 aatom3 atype
compute 2 all angle/local eng theta v_cos v_cossq set theta t
dump 1 all local 100 tmp.dump c_1[*] c_2[*] :pre
compute 3 all reduce ave c_2[*]
thermo_style custom step temp press c_3[*] :pre
fix 10 all ave/histo 10 10 100 -1 1 20 c_2[3] mode vector file tmp.histo :pre
The "dump local"_dump.html command will output the energy, angle,
cosine(angle), cosine^2(angle) for every angle in the system. The
"thermo_style"_thermo_style.html command will print the average of
those quantities via the "compute reduce"_compute_reduce.html command
with thermo output. And the "fix ave/histo"_fix_ave_histo.html
command will histogram the cosine(angle) values and write them to a
file.
:line
The local data stored by this command is generated by looping over all
the atoms owned on a processor and their angles. An angle will only
be included if all 3 atoms in the angle are in the specified compute
@ -65,12 +113,12 @@ dump 1 all local 1000 tmp.dump index c_1\[1\] c_1\[2\] c_1\[3\] c_1\[4\] c_2\[1\
[Output info:]
This compute calculates a local vector or local array depending on the
number of keywords. The length of the vector or number of rows in the
array is the number of angles. If a single keyword is specified, a
local vector is produced. If two or more keywords are specified, a
number of values. The length of the vector or number of rows in the
array is the number of angles. If a single value is specified, a
local vector is produced. If two or more values are specified, a
local array is produced where the number of columns = the number of
keywords. The vector or array can be accessed by any command that
uses local values from a compute as input. See the "Howto
values. The vector or array can be accessed by any command that uses
local values from a compute as input. See the "Howto
output"_Howto_output.html doc page for an overview of LAMMPS output
options.

View File

@ -10,12 +10,12 @@ compute bond/local command :h3
[Syntax:]
compute ID group-ID bond/local value1 value2 ... :pre
compute ID group-ID bond/local value1 value2 ... keyword args ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
bond/local = style name of this compute command :l
one or more values may be appended :l
value = {dist} or {engpot} or {force} or {engvib} or {engrot} or {engtrans} or {omega} or {velvib} :l
value = {dist} or {engpot} or {force} or {engvib} or {engrot} or {engtrans} or {omega} or {velvib} or {v_name} :l
{dist} = bond distance
{engpot} = bond potential energy
{force} = bond force :pre
@ -23,13 +23,22 @@ value = {dist} or {engpot} or {force} or {engvib} or {engrot} or {engtrans} or {
{engrot} = bond kinetic energy of rotation
{engtrans} = bond kinetic energy of translation
{omega} = magnitude of bond angular velocity
{velvib} = vibrational velocity along the bond length :pre
{velvib} = vibrational velocity along the bond length
{v_name} = equal-style variable with name (see below) :pre
zero or more keyword/args pairs may be appended :l
keyword = {set} :l
{set} args = dist name
dist = only currently allowed arg
name = name of variable to set with distance (dist) :pre
:ule
:ule
[Examples:]
compute 1 all bond/local engpot
compute 1 all bond/local dist engpot force :pre
compute 1 all angle/local dist v_distsq set dist d :pre
[Description:]
@ -38,6 +47,10 @@ interactions. The number of datums generated, aggregated across all
processors, equals the number of bonds in the system, modified by the
group parameter as explained below.
All these properties are computed for the pair of atoms in a bond,
whether the 2 atoms represent a simple diatomic molecule, or are part
of some larger molecule.
The value {dist} is the current length of the bond.
The value {engpot} is the potential energy for the bond,
@ -79,9 +92,41 @@ two atoms in the bond towards each other. A negative value means the
2 atoms are moving toward each other; a positive value means they are
moving apart.
Note that all these properties are computed for the pair of atoms in a
bond, whether the 2 atoms represent a simple diatomic molecule, or are
part of some larger molecule.
The value {v_name} can be used together with the {set} keyword to
compute a user-specified function of the bond distance. The {name}
specified for the {v_name} value is the name of an "equal-style
variable"_variable.html which should evaluate a formula based on a
variable which will store the bond distance. This other variable must
be an "internal-style variable"_variable.html defined in the input
script; its initial numeric value can be anything. It must be an
internal-style variable, because this command resets its value
directly. The {set} keyword is used to identify the name of this
other variable associated with theta.
As an example, these commands can be added to the bench/in.rhodo
script to compute the distance^2 of every bond in the system and
output the statistics in various ways:
variable d internal 0.0
variable dsq equal v_d*v_d :pre
compute 1 all property/local batom1 batom2 btype
compute 2 all bond/local engpot dist v_dsq set dist d
dump 1 all local 100 tmp.dump c_1[*] c_2[*] :pre
compute 3 all reduce ave c_2[*]
thermo_style custom step temp press c_3[*] :pre
fix 10 all ave/histo 10 10 100 0 6 20 c_2[3] mode vector file tmp.histo :pre
The "dump local"_dump.html command will output the energy, distance,
distance^2 for every bond in the system. The
"thermo_style"_thermo_style.html command will print the average of
those quantities via the "compute reduce"_compute_reduce.html command
with thermo output. And the "fix ave/histo"_fix_ave_histo.html
command will histogram the distance^2 values and write them to a file.
:line
The local data stored by this command is generated by looping over all
the atoms owned on a processor and their bonds. A bond will only be
@ -111,12 +156,12 @@ dump 1 all local 1000 tmp.dump index c_1\[*\] c_2\[*\] :pre
[Output info:]
This compute calculates a local vector or local array depending on the
number of keywords. The length of the vector or number of rows in the
array is the number of bonds. If a single keyword is specified, a
local vector is produced. If two or more keywords are specified, a
local array is produced where the number of columns = the number of
keywords. The vector or array can be accessed by any command that
uses local values from a compute as input. See the "Howto
number of values. The length of the vector or number of rows in the
array is the number of bonds. If a single value is specified, a local
vector is produced. If two or more values are specified, a local
array is produced where the number of columns = the number of values.
The vector or array can be accessed by any command that uses local
values from a compute as input. See the "Howto
output"_Howto_output.html doc page for an overview of LAMMPS output
options.

View File

@ -14,7 +14,7 @@ compute ID group-ID chunk/atom style args keyword values ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
chunk/atom = style name of this compute command :l
style = {bin/1d} or {bin/2d} or {bin/3d} or {bin/sphere} or {type} or {molecule} or {compute/fix/variable}
style = {bin/1d} or {bin/2d} or {bin/3d} or {bin/sphere} or {type} or {molecule} or c_ID, c_ID\[I\], f_ID, f_ID\[I\], v_name
{bin/1d} args = dim origin delta
dim = {x} or {y} or {z}
origin = {lower} or {center} or {upper} or coordinate value (distance units)
@ -40,7 +40,7 @@ style = {bin/1d} or {bin/2d} or {bin/3d} or {bin/sphere} or {type} or {molecule}
ncbin = # of concentric circle bins between rmin and rmax
{type} args = none
{molecule} args = none
{compute/fix/variable} = c_ID, c_ID\[I\], f_ID, f_ID\[I\], v_name with no args
c_ID, c_ID\[I\], f_ID, f_ID\[I\], v_name args = none
c_ID = per-atom vector calculated by a compute with ID
c_ID\[I\] = Ith column of per-atom array calculated by a compute with ID
f_ID = per-atom vector calculated by a fix with ID
@ -85,7 +85,8 @@ compute 1 all chunk/atom bin/1d z lower 0.02 units reduced
compute 1 all chunk/atom bin/2d z lower 1.0 y 0.0 2.5
compute 1 all chunk/atom molecule region sphere nchunk once ids once compress yes
compute 1 all chunk/atom bin/sphere 5 5 5 2.0 5.0 5 discard yes
compute 1 all chunk/atom bin/cylinder z lower 2 10 10 2.0 5.0 3 discard yes :pre
compute 1 all chunk/atom bin/cylinder z lower 2 10 10 2.0 5.0 3 discard yes
compute 1 all chunk/atom c_cluster :pre
[Description:]
@ -386,8 +387,8 @@ described below, which resets {Nchunk}. The {limit} keyword is then
applied to the new {Nchunk} value, exactly as described in the
preceding paragraph. Note that in this case, all atoms will end up
with chunk IDs <= {Nc}, but their original values (e.g. molecule ID or
compute/fix/variable value) may have been > {Nc}, because of the
compression operation.
compute/fix/variable) may have been > {Nc}, because of the compression
operation.
If {compress yes} is set, and the {compress} keyword comes after the
{limit} keyword, then the {limit} value of {Nc} is applied first to

View File

@ -0,0 +1,174 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
compute chunk/spread/atom command :h3
[Syntax:]
compute ID group-ID chunk/spread/atom chunkID input1 input2 ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
chunk/spread/atom = style name of this compute command :l
chunkID = ID of "compute chunk/atom"_compute_chunk_atom.html command :l
one or more inputs can be listed :l
input = c_ID, c_ID\[N\], f_ID, f_ID\[N\] :l
c_ID = global vector calculated by a compute with ID
c_ID\[I\] = Ith column of global array calculated by a compute with ID, I can include wildcard (see below)
f_ID = global vector calculated by a fix with ID
f_ID\[I\] = Ith column of global array calculated by a fix with ID, I can include wildcard (see below) :pre
:ule
[Examples:]
compute 1 all chunk/spread/atom mychunk c_com[*] c_gyration :pre
[Description:]
Define a calculation that "spreads" one or more per-chunk values to
each atom in the chunk. This can be useful for creating a "dump
file"_dump.html where each atom lists info about the chunk it is in,
e.g. for post-processing purposes. It can also be used in "atom-style
variables"_variable.html that need info about the chunk each atom is
in. Examples are given below.
In LAMMPS, chunks are collections of atoms defined by a "compute
chunk/atom"_compute_chunk_atom.html command, which assigns each atom
to a single chunk (or no chunk). The ID for this command is specified
as chunkID. For example, a single chunk could be the atoms in a
molecule or atoms in a spatial bin. See the "compute
chunk/atom"_compute_chunk_atom.html and "Howto chunk"_Howto_chunk.html
doc pages for details of how chunks can be defined and examples of how
they can be used to measure properties of a system.
For inputs that are computes, they must be a compute that calculates
per-chunk values. These are computes whose style names end in
"/chunk".
For inputs that are fixes, they should be a a fix that calculates
per-chunk values. For example, "fix ave/chunk"_fix_ave_chunk.html or
"fix ave/time"_fix_ave_time.html (assuming it is time-averaging
per-chunk data).
For each atom, this compute accesses its chunk ID from the specified
{chunkID} compute, then accesses the per-chunk value in each input.
Those values are copied to this compute to become the output for that
atom.
The values generated by this compute will be 0.0 for atoms not in the
specified compute group {group-ID}. They will also be 0.0 if the atom
is not in a chunk, as assigned by the {chunkID} compute. They will
also be 0.0 if the current chunk ID for the atom is out-of-bounds with
respect to the number of chunks stored by a particular input compute
or fix.
NOTE: LAMMPS does not check that a compute or fix which calculates
per-chunk values uses the same definition of chunks as this compute.
It's up to you to be consistent. Likewise, for a fix input, LAMMPS
does not check that it is per-chunk data. It only checks that the fix
produces a global vector or array.
:line
Each listed input is operated on independently.
If a bracketed index I is used, it can be specified using a wildcard
asterisk with the index to effectively specify multiple values. This
takes the form "*" or "*n" or "n*" or "m*n". If N = the number of
columns in the array, then an asterisk with no numeric values means
all indices from 1 to N. A leading asterisk means all indices from 1
to n (inclusive). A trailing asterisk means all indices from n to N
(inclusive). A middle asterisk means all indices from m to n
(inclusive).
Using a wildcard is the same as if the individual columns of the array
had been listed one by one. E.g. these 2 compute chunk/spread/atom
commands are equivalent, since the "compute
com/chunk"_compute_com_chunk.html command creates a per-atom array
with 3 columns:
compute com all com/chunk mychunk
compute 10 all chunk/spread/atom mychunk c_com\[*\]
compute 10 all chunk/spread/atom mychunk c_com\[1\] c_com\[2\] c_com\[3\] :pre
:line
Here is an example of writing a dump file the with the center-of-mass
(COM) for the chunk each atom is in. The commands below can be added
to the bench/in.chain script.
compute cmol all chunk/atom molecule
compute com all com/chunk cmol
compute comchunk all chunk/spread/atom cmol c_com[*]
dump 1 all custom 50 tmp.dump id mol type x y z c_comchunk[*]
dump_modify 1 sort id :pre
The same per-chunk data for each atom could be used to define per-atom
forces for the "fix addforce"_fix_addforce.html command. In this
example the forces act to pull atoms of an extended polymer chain
towards its COM in an attractive manner.
compute prop all property/atom xu yu zu
variable k equal 0.1
variable fx atom v_k*(c_comchunk\[1\]-c_prop\[1\])
variable fy atom v_k*(c_comchunk\[2\]-c_prop\[2\])
variable fz atom v_k*(c_comchunk\[3\]-c_prop\[3\])
fix 3 all addforce v_fx v_fy v_fz :pre
Note that "compute property/atom"_compute_property_atom.html is used
to generate unwrapped coordinates for use in the per-atom force
calculation, so that the effect of periodic boundaries is accounted
for properly.
Over time this applied force could shrink each polymer chain's radius
of gyration in a polymer mixture simulation. Here is output from the
bench/in.chain script. Thermo output is shown for 1000 steps, where
the last column is the average radius of gyration over all 320 chains
in the 32000 atom system:
compute gyr all gyration/chunk cmol
variable ave equal ave(c_gyr)
thermo_style custom step etotal press v_ave :pre
0 22.394765 4.6721833 5.128278
100 22.445002 4.8166709 5.0348372
200 22.500128 4.8790392 4.9364875
300 22.534686 4.9183766 4.8590693
400 22.557196 4.9492211 4.7937849
500 22.571017 4.9161853 4.7412008
600 22.573944 5.0229708 4.6931243
700 22.581804 5.0541301 4.6440647
800 22.584683 4.9691734 4.6000016
900 22.59128 5.0247538 4.5611513
1000 22.586832 4.94697 4.5238362 :pre
:line
[Output info:]
This compute calculates a per-atom vector or array, which can be
accessed by any command that uses per-atom values from a compute as
input. See the "Howto output"_Howto_output.html doc page for an
overview of LAMMPS output options.
The output is a per-atom vector if a single input value is specified,
otherwise a per-atom array is output. The number of columns in the
array is the number of inputs provided. The per-atom values for the
vector or each column of the array will be in whatever
"units"_units.html the corresponding input value is in.
The vector or array values are "intensive".
[Restrictions:] none
[Related commands:]
"compute chunk/atom"_compute_chunk_atom.html, "fix
ave/chunk"_fix_ave_chunk.html, "compute
reduce/chunk"_compute_reduce_chunk.html
[Default:] none

View File

@ -10,18 +10,25 @@ compute dihedral/local command :h3
[Syntax:]
compute ID group-ID dihedral/local value1 value2 ... :pre
compute ID group-ID dihedral/local value1 value2 ... keyword args ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
dihedral/local = style name of this compute command :l
one or more values may be appended :l
value = {phi} :l
{phi} = tabulate dihedral angles :pre
value = {phi} or {v_name} :l
{phi} = tabulate dihedral angles
{v_name} = equal-style variable with name (see below) :pre
zero or more keyword/args pairs may be appended :l
keyword = {set} :l
{set} args = phi name
phi = only currently allowed arg
name = name of variable to set with phi :pre
:ule
[Examples:]
compute 1 all dihedral/local phi :pre
compute 1 all dihedral/local phi v_cos set phi p :pre
[Description:]
@ -33,6 +40,47 @@ by the group parameter as explained below.
The value {phi} is the dihedral angle, as defined in the diagram on
the "dihedral_style"_dihedral_style.html doc page.
The value {v_name} can be used together with the {set} keyword to
compute a user-specified function of the dihedral angle phi. The
{name} specified for the {v_name} value is the name of an "equal-style
variable"_variable.html which should evaluate a formula based on a
variable which will store the angle phi. This other variable must
be an "internal-style variable"_variable.html defined in the input
script; its initial numeric value can be anything. It must be an
internal-style variable, because this command resets its value
directly. The {set} keyword is used to identify the name of this
other variable associated with phi.
Note that the value of phi for each angle which stored in the internal
variable is in radians, not degrees.
As an example, these commands can be added to the bench/in.rhodo
script to compute the cosine and cosine^2 of every dihedral angle in
the system and output the statistics in various ways:
variable p internal 0.0
variable cos equal cos(v_p)
variable cossq equal cos(v_p)*cos(v_p) :pre
compute 1 all property/local datom1 datom2 datom3 datom4 dtype
compute 2 all dihedral/local phi v_cos v_cossq set phi p
dump 1 all local 100 tmp.dump c_1[*] c_2[*] :pre
compute 3 all reduce ave c_2[*]
thermo_style custom step temp press c_3[*] :pre
fix 10 all ave/histo 10 10 100 -1 1 20 c_2[2] mode vector file tmp.histo :pre
The "dump local"_dump.html command will output the angle,
cosine(angle), cosine^2(angle) for every dihedral in the system. The
"thermo_style"_thermo_style.html command will print the average of
those quantities via the "compute reduce"_compute_reduce.html command
with thermo output. And the "fix ave/histo"_fix_ave_histo.html
command will histogram the cosine(angle) values and write them to a
file.
:line
The local data stored by this command is generated by looping over all
the atoms owned on a processor and their dihedrals. A dihedral will
only be included if all 4 atoms in the dihedral are in the specified
@ -57,12 +105,12 @@ dump 1 all local 1000 tmp.dump index c_1\[1\] c_1\[2\] c_1\[3\] c_1\[4\] c_1\[5\
[Output info:]
This compute calculates a local vector or local array depending on the
number of keywords. The length of the vector or number of rows in the
array is the number of dihedrals. If a single keyword is specified, a
local vector is produced. If two or more keywords are specified, a
number of values. The length of the vector or number of rows in the
array is the number of dihedrals. If a single value is specified, a
local vector is produced. If two or more values are specified, a
local array is produced where the number of columns = the number of
keywords. The vector or array can be accessed by any command that
uses local values from a compute as input. See the "Howto
values. The vector or array can be accessed by any command that uses
local values from a compute as input. See the "Howto
output"_Howto_output.html doc page for an overview of LAMMPS output
options.

View File

@ -90,12 +90,12 @@ This is so that the fix this compute creates to store per-chunk
quantities will also have the same ID, and thus be initialized
correctly with chunk reference positions from the restart file.
The simplest way to output the results of the compute com/msd
The simplest way to output the results of the compute msd/chunk
calculation to a file is to use the "fix ave/time"_fix_ave_time.html
command, for example:
compute cc1 all chunk/atom molecule
compute myChunk all com/msd cc1
compute myChunk all msd/chunk cc1
fix 1 all ave/time 100 1 100 c_myChunk\[*\] file tmp.out mode vector :pre
[Output info:]

View File

@ -10,17 +10,20 @@ compute pair command :h3
[Syntax:]
compute ID group-ID pair pstyle evalue :pre
compute ID group-ID pair pstyle \[nstyle\] \[evalue\] :pre
ID, group-ID are documented in "compute"_compute.html command
pair = style name of this compute command
pstyle = style name of a pair style that calculates additional values
evalue = {epair} or {evdwl} or {ecoul} or blank (optional setting) :ul
ID, group-ID are documented in "compute"_compute.html command :ulb,l
pair = style name of this compute command :l
pstyle = style name of a pair style that calculates additional values :l
nsub = {n}-instance of a substyle, if a pair style is used multiple times in a hybrid style :l
{evalue} = {epair} or {evdwl} or {ecoul} or blank (optional) :l
:ule
[Examples:]
compute 1 all pair gauss
compute 1 all pair lj/cut/coul/cut ecoul
compute 1 all pair tersoff 2 epair
compute 1 all pair reax :pre
[Description:]
@ -33,15 +36,19 @@ NOTE: The group specified for this command is [ignored].
The specified {pstyle} must be a pair style used in your simulation
either by itself or as a sub-style in a "pair_style hybrid or
hybrid/overlay"_pair_hybrid.html command.
hybrid/overlay"_pair_hybrid.html command. If the sub-style is
used more than once, an additional number {nsub} has to be specified
in order to choose which instance of the sub-style will be used by
the compute. Not specifying the number in this case will cause the
compute to fail.
The {evalue} setting is optional; it may be left off the command. All
The {evalue} setting is optional. All
pair styles tally a potential energy {epair} which may be broken into
two parts: {evdwl} and {ecoul} such that {epair} = {evdwl} + {ecoul}.
If the pair style calculates Coulombic interactions, their energy will
be tallied in {ecoul}. Everything else (whether it is a Lennard-Jones
style van der Waals interaction or not) is tallied in {evdwl}. If
{evalue} is specified as {epair} or left out, then {epair} is stored
{evalue} is blank or specified as {epair}, then {epair} is stored
as a global scalar by this compute. This is useful when using
"pair_style hybrid"_pair_hybrid.html if you want to know the portion
of the total energy contributed by one sub-style. If {evalue} is
@ -82,4 +89,4 @@ the doc page for the pair style for details.
[Default:]
The default for {evalue} is {epair}.
The keyword defaults are {evalue} = {epair}, nsub = 0.

View File

@ -0,0 +1,81 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
compute pressure/cylinder command :h3
[Syntax:]
compute ID group-ID pressure/cylinder zlo zhi Rmax bin_width :pre
ID, group-ID are documented in "compute"_compute.html command
pressure/cylinder = style name of this compute command
zlo = minimum z-boundary for cylinder
zhi = maximum z-boundary for cylinder
Rmax = maximum radius to perform calculation to
bin_width = width of radial bins to use for calculation :ul
[Examples:]
compute 1 all pressure/cylinder -10.0 10.0 15.0 0.25 :pre
[Description:]
Define a computation that calculates the pressure tensor of a system in
cylindrical coordinates, as discussed in "(Addington)"_#Addington1.
This is useful for systems with a single axis of rotational symmetry,
such as cylindrical micelles or carbon nanotubes. The compute splits the
system into radial, cylindrical-shell-type bins of width bin_width,
centered at x=0,y=0, and calculates the radial (P_rhorho), azimuthal
(P_phiphi), and axial (P_zz) components of the configurational pressure
tensor. The local density is also calculated for each bin, so that the
true pressure can be recovered as P_kin+P_conf=density*k*T+P_conf. The
output is a global array with 5 columns; one each for bin radius, local
number density, P_rhorho, P_phiphi, and P_zz. The number of rows is
governed by the values of Rmax and bin_width. Pressure tensor values are
output in pressure units.
[Output info:]
This compute calculates a global array with 5 columns and Rmax/bin_width
rows. The output columns are: R (distance units), number density (inverse
volume units), configurational radial pressure (pressure units),
configurational azimuthal pressure (pressure units), and configurational
axial pressure (pressure units).
The values calculated by this compute are
"intensive". The pressure values will be in pressure
"units"_units.html. The number density values will be in
inverse volume "units"_units.html.
[Restrictions:]
This compute currently calculates the pressure tensor contributions
for pair styles only (i.e. no bond, angle, dihedral, etc. contributions
and in the presence of bonded interactions, the result will be incorrect
due to exclusions for special bonds) and requires pair-wise force
calculations not available for most manybody pair styles. K-space
calculations are also excluded. Note that this pressure compute outputs
the configurational terms only; the kinetic contribution is not included
and may be calculated from the number density output by P_kin=density*k*T.
This compute is part of the USER-MISC package. It is only enabled
if LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info.
[Related commands:]
"compute temp"_compute_temp.html, "compute
stress/atom"_compute_stress_atom.html,
"thermo_style"_thermo_style.html,
[Default:] none
:line
:link(Addington1)
[(Addington)] Addington, Long, Gubbins, J Chem Phys, 149, 084109 (2018).

View File

@ -0,0 +1,121 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
compute ptm/atom command :h3
[Syntax:]
compute ID group-ID ptm/atom structures threshold :pre
ID, group-ID are documented in "compute"_compute.html command
ptm/atom = style name of this compute command
structures = structure types to search for
threshold = lattice distortion threshold (RMSD) :ul
[Examples:]
compute 1 all ptm/atom default 0.1
compute 1 all ptm/atom fcc-hcp-dcub-dhex 0.15
compute 1 all ptm/atom all 0 :pre
[Description:]
Define a computation that determines the local lattice structure
around an atom using the PTM (Polyhedral Template Matching) method.
The PTM method is described in "(Larsen)"_#Larsen.
Currently, there are seven lattice structures PTM recognizes:
fcc = 1
hcp = 2
bcc = 3
ico (icosahedral) = 4
sc (simple cubic) = 5
dcub (diamond cubic) = 6
dhex (diamond hexagonal) = 7
other = 8 :ul
The value of the PTM structure will be 0 for atoms not in the specified
compute group. The choice of structures to search for can be specified using the "structures"
argument, which is a hyphen-separated list of structure keywords.
Two convenient pre-set options are provided:
default: fcc-hcp-bcc-ico
all: fcc-hcp-bcc-ico-sc-dcub-dhex :ul
The 'default' setting detects the same structures as the Common Neighbor Analysis method.
The 'all' setting searches for all structure types. A small performance penalty is
incurred for the diamond structures, so it is not recommended to use this option if
it is known that the simulation does not contain diamond structures.
PTM identifies structures using two steps. First, a graph isomorphism test is used
to identify potential structure matches. Next, the deviation is computed between the
local structure (in the simulation) and a template of the ideal lattice structure.
The deviation is calculated as:
:c,image(Eqs/ptm_rmsd.jpg)
Here, u and v contain the coordinates of the local and ideal structures respectively,
s is a scale factor, and Q is a rotation. The best match is identified by the
lowest RMSD value, using the optimal scaling, rotation, and correspondence between the
points.
The 'threshold' keyword sets an upper limit on the maximum permitted deviation before
a local structure is identified as disordered. Typical values are in the range 0.1-0.15,
but larger values may be desirable at higher temperatures.
A value of 0 is equivalent to infinity and can be used if no threshold is desired.
The neighbor list needed to compute this quantity is constructed each
time the calculation is performed (e.g. each time a snapshot of atoms
is dumped). Thus it can be inefficient to compute/dump this quantity
too frequently or to have multiple compute/dump commands, each with a
{ptm/atom} style.
[Output info:]
This compute calculates a per-atom arry, which can be accessed by
any command that uses per-atom values from a compute as input. See
the "Howto output"_Howto_output.html doc page for an overview of
LAMMPS output options.
Results are stored in the per-atom array in the following order:
type
rmsd
interatomic distance
qw
qx
qy
qw :ul
The type is a number from 0 to 8. The rmsd is a positive real number.
The interatomic distance is computed from the scale factor in the RMSD equation.
The (qw,qx,qy,qz) parameters represent the orientation of the local structure
in quaternion form. The reference coordinates for each template (from which the
orientation is determined) can be found in the {ptm_constants.h} file in the PTM source directory.
[Restrictions:]
This fix is part of the USER-PTM package. It is only enabled if
LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info.
[Related commands:]
"compute centro/atom"_compute_centro_atom.html
"compute cna/atom"_compute_cna_atom.html
[Default:] none
:line
:link(Larsen)
[(Larsen)] Larsen, Schmidt, Schiotz, Modelling Simul Mater Sci Eng, 24, 055007 (2016).

View File

@ -191,7 +191,8 @@ via "compute_modify dynamic yes"_compute_modify.html
[Related commands:]
"fix ave/time"_fix_ave_time.html, "compute_modify"_compute_modify.html
"fix ave/time"_fix_ave_time.html, "compute_modify"_compute_modify.html,
"compute adf"_compute_adf.html
[Default:]

View File

@ -97,9 +97,9 @@ equivalent, since the "compute stress/atom"_compute_stress_atom.html
command creates a per-atom array with 6 columns:
compute myPress all stress/atom NULL
compute 2 all reduce min myPress\[*\]
compute 2 all reduce min myPress\[1\] myPress\[2\] myPress\[3\] &
myPress\[4\] myPress\[5\] myPress\[6\] :pre
compute 2 all reduce min c_myPress\[*\]
compute 2 all reduce min c_myPress\[1\] c_myPress\[2\] c_myPress\[3\] &
c_myPress\[4\] c_myPress\[5\] c_myPress\[6\] :pre
:line

View File

@ -0,0 +1,177 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
compute reduce/chunk command :h3
[Syntax:]
compute ID group-ID reduce/chunk chunkID mode input1 input2 ... :pre
ID, group-ID are documented in "compute"_compute.html command :ulb,l
reduce/chunk = style name of this compute command :l
chunkID = ID of "compute chunk/atom"_compute_chunk_atom.html command :l
mode = {sum} or {min} or {max} :l
one or more inputs can be listed :l
input = c_ID, c_ID\[N\], f_ID, f_ID\[N\], v_ID :l
c_ID = per-atom vector calculated by a compute with ID
c_ID\[I\] = Ith column of per-atom array calculated by a compute with ID, I can include wildcard (see below)
f_ID = per-atom vector calculated by a fix with ID
f_ID\[I\] = Ith column of per-atom array calculated by a fix with ID, I can include wildcard (see below)
v_name = per-atom vector calculated by an atom-style variable with name :pre
:ule
[Examples:]
compute 1 all reduce/chunk/atom mychunk min c_cluster :pre
[Description:]
Define a calculation that reduces one or more per-atom vectors into
per-chunk values. This can be useful for diagnostic output. Or when
used in conjunction with the "compute
chunk/spread/atom"_compute_chunk_spread_atom.html command it can be
used ot create per-atom values that induce a new set of chunks with a
second "compute chunk/atom"_compute_chunk_atom.html command. An
example is given below.
In LAMMPS, chunks are collections of atoms defined by a "compute
chunk/atom"_compute_chunk_atom.html command, which assigns each atom
to a single chunk (or no chunk). The ID for this command is specified
as chunkID. For example, a single chunk could be the atoms in a
molecule or atoms in a spatial bin. See the "compute
chunk/atom"_compute_chunk_atom.html and "Howto chunk"_Howto_chunk.html
doc pages for details of how chunks can be defined and examples of how
they can be used to measure properties of a system.
For each atom, this compute accesses its chunk ID from the specified
{chunkID} compute. The per-atom value from an input contributes
to a per-chunk value corresponding the the chunk ID.
The reduction operation is specified by the {mode} setting and is
performed over all the per-atom values from the atoms in each chunk.
The {sum} option adds the pre-atom values to a per-chunk total. The
{min} or {max} options find the minimum or maximum value of the
per-atom values for each chunk.
Note that only atoms in the specified group contribute to the
reduction operation. If the {chunkID} compute returns a 0 for the
chunk ID of an atom (i.e. the atom is not in a chunk defined by the
"compute chunk/atom"_compute_chunk_atom.html command), that atom will
also not contribute to the reduction operation. An input that is a
compute or fix may define its own group which affects the quantities
it returns. For example, a compute with return a zero value for atoms
that are not in the group specified for that compute.
Each listed input is operated on independently. Each input can be the
result of a "compute"_compute.html or "fix"_fix.html or the evaluation
of an atom-style "variable"_variable.html.
Note that for values from a compute or fix, the bracketed index I can
be specified using a wildcard asterisk with the index to effectively
specify multiple values. This takes the form "*" or "*n" or "n*" or
"m*n". If N = the size of the vector (for {mode} = scalar) or the
number of columns in the array (for {mode} = vector), then an asterisk
with no numeric values means all indices from 1 to N. A leading
asterisk means all indices from 1 to n (inclusive). A trailing
asterisk means all indices from n to N (inclusive). A middle asterisk
means all indices from m to n (inclusive).
Using a wildcard is the same as if the individual columns of the array
had been listed one by one. E.g. these 2 compute reduce/chunk
commands are equivalent, since the "compute
property/chunk"_compute_property_chunk.html command creates a per-atom
array with 3 columns:
compute prop all property/atom vx vy vz
compute 10 all reduce/chunk mychunk max c_prop\[*\]
compute 10 all reduce/chunk mychunk max c_prop\[1\] c_prop\[2\] c_prop\[3\] :pre
:line
Here is an example of using this compute, in conjunction with the
compute chunk/spread/atom command to identify self-assembled micelles.
The commands below can be added to the examples/in.micelle script.
Imagine a collection of polymer chains or small molecules with
hydrophobic end groups. All the hydrophobic (HP) atoms are assigned
to a group called "phobic".
These commands will assign a unique cluster ID to all HP atoms within
a specified distance of each other. A cluster will contain all HP
atoms in a single molecule, but also the HP atoms in nearby molecules,
e.g. molecules that have clumped to form a micelle due to the
attraction induced by the hydrophobicity. The output of the
chunk/reduce command will be a cluster ID per chunk (molecule).
Molecules with the same cluster ID are in the same micelle.
group phobic type 4 # specific to in.micelle model
compute cluster phobic cluster/atom 2.0
compute cmol all chunk/atom molecule
compute reduce phobic reduce/chunk cmol min c_cluster :pre
This per-chunk info could be output in at least two ways:
fix 10 all ave/time 1000 1 1000 c_reduce file tmp.phobic mode vector :pre
compute spread all chunk/spread/atom cmol c_reduce
dump 1 all custom 1000 tmp.dump id type mol x y z c_cluster c_spread
dump_modify 1 sort id :pre
In the first case, each snapshot in the tmp.phobic file will contain
one line per molecule. Molecules with the same value are in the same
micelle. In the second case each dump snapshot contains all atoms,
each with a final field with the cluster ID of the micelle that the HP
atoms of that atom's molecule belong to.
The result from compute chunk/spread/atom can be used to define a new
set of chunks, where all the atoms in all the molecules in the same
micelle are assigned to the same chunk, i.e. one chunk per micelle.
compute micelle all chunk/atom c_spread compress yes :pre
Further analysis on a per-micelle basis can now be performed using any
of the per-chunk computes listed on the "Howto chunk"_Howto_chunk.html
doc page. E.g. count the number of atoms in each micelle, calculate
its center or mass, shape (moments of intertia), radius of gyration,
etc.
compute prop all property/chunk micelle count
fix 20 all ave/time 1000 1 1000 c_prop file tmp.micelle mode vector :pre
Each snapshot in the tmp.micelle file will have one line per micelle
with its count of atoms, plus a first line for a chunk with all the
solvent atoms. By the time 50000 steps have elapsed there are a
handful of large micelles.
:line
[Output info:]
This compute calculates a global vector if a single input value is
specified, otherwise a global array is output. The number of columns
in the array is the number of inputs provided. The length of the
vector or the number of vector elements or array rows = the number of
chunks {Nchunk} as calculated by the specified "compute
chunk/atom"_compute_chunk_atom.html command. The vector or array can
be accessed by any command that uses global values from a compute as
input. See the "Howto output"_Howto_output.html doc page for an
overview of LAMMPS output options.
The per-atom values for the vector or each column of the array will be
in whatever "units"_units.html the corresponding input value is in.
The vector or array values are "intensive".
[Restrictions:] none
[Related commands:]
"compute chunk/atom"_compute_chunk_atom.html, "compute
reduce"_compute_reduce.html, "compute
chunk/spread/atom"_compute_chunk_spread_atom.html
[Default:] none

View File

@ -6,14 +6,14 @@
:line
compute smd/triangle/mesh/vertices :h3
compute smd/triangle/vertices command :h3
[Syntax:]
compute ID group-ID smd/triangle/mesh/vertices :pre
compute ID group-ID smd/triangle/vertices :pre
ID, group-ID are documented in "compute"_compute.html command
smd/triangle/mesh/vertices = style name of this compute command :ul
smd/triangle/vertices = style name of this compute command :ul
[Examples:]

View File

@ -10,14 +10,14 @@ compute spin command :h3
[Syntax:]
compute ID group-ID compute/spin :pre
compute ID group-ID spin :pre
ID, group-ID are documented in "compute"_compute.html command
compute/spin = style name of this compute command :ul
spin = style name of this compute command :ul
[Examples:]
compute out_mag all compute/spin :pre
compute out_mag all spin :pre
[Description:]
@ -26,7 +26,8 @@ of atoms having spins.
This compute calculates 6 magnetic quantities.
The three first quantities are the x,y and z coordinates of the total magnetization.
The three first quantities are the x,y and z coordinates of the total
magnetization.
The fourth quantity is the norm of the total magnetization.
@ -39,7 +40,7 @@ The simplest way to output the results of the compute spin calculation
is to define some of the quantities as variables, and to use the thermo and
thermo_style commands, for example:
compute out_mag all compute/spin :pre
compute out_mag all spin :pre
variable mag_z equal c_out_mag\[3\]
variable mag_norm equal c_out_mag\[4\]
@ -53,7 +54,6 @@ the total magnetization, and the magnetic temperature. Three variables are
assigned to those quantities. The thermo and thermo_style commands print them
every 10 timesteps.
[Output info:]
The array values are "intensive". The array values will be in
@ -68,7 +68,6 @@ has to be "spin" for this compute to be valid.
[Related commands:] none
[Default:] none
:line

View File

@ -0,0 +1,111 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
compute stress/mop command :h3
compute stress/mop/profile command :h3
[Syntax:]
compute ID group-ID style dir args keywords ... :pre
ID, group-ID are documented in "compute"_compute.html command
style = {stress/mop} or {stress/mop/profile}
dir = {x} or {y} or {z} is the direction normal to the plane
args = argument specific to the compute style
keywords = {kin} or {conf} or {total} (one of more can be specified) :ul
{stress/mop} args = pos
pos = {lower} or {center} or {upper} or coordinate value (distance units) is the position of the plane
{stress/mop/profile} args = origin delta
origin = {lower} or {center} or {upper} or coordinate value (distance units) is the position of the first plane
delta = value (distance units) is the distance between planes :pre
compute 1 all stress/mop x lower total
compute 1 liquid stress/mop z 0.0 kin conf
fix 1 all ave/time 10 1000 10000 c_1\[*\] file mop.time
fix 1 all ave/time 10 1000 10000 c_1\[2\] file mop.time :pre
compute 1 all stress/mop/profile x lower 0.1 total
compute 1 liquid stress/mop/profile z 0.0 0.25 kin conf
fix 1 all ave/time 500 20 10000 c_1\[*\] ave running overwrite file mopp.time mode vector :pre
[Description:]
Compute {stress/mop} and compute {stress/mop/profile} define computations that
calculate components of the local stress tensor using the method of
planes "(Todd)"_#mop-todd. Specifically in compute {stress/mop} calculates 3
components are computed in directions {dir},{x}; {dir},{y}; and
{dir},{z}; where {dir} is the direction normal to the plane, while
in compute {stress/mop/profile} the profile of the stress is computed.
Contrary to methods based on histograms of atomic stress (i.e. using
"compute stress/atom"_compute_stress_atom.html), the method of planes is
compatible with mechanical balance in heterogeneous systems and at
interfaces "(Todd)"_#mop-todd.
The stress tensor is the sum of a kinetic term and a configurational
term, which are given respectively by Eq. (21) and Eq. (16) in
"(Todd)"_#mop-todd. For the kinetic part, the algorithm considers that
atoms have crossed the plane if their positions at times t-dt and t are
one on either side of the plane, and uses the velocity at time t-dt/2
given by the velocity-Verlet algorithm.
Between one and three keywords can be used to indicate which
contributions to the stress must be computed: kinetic stress (kin),
configurational stress (conf), and/or total stress (total).
NOTE 1: The configurational stress is computed considering all pairs of atoms where at least one atom belongs to group group-ID.
NOTE 2: The local stress does not include any Lennard-Jones tail
corrections to the pressure added by the "pair_modify tail
yes"_pair_modify.html command, since those are contributions to the global system pressure.
[Output info:]
Compute {stress/mop} calculates a global vector (indices starting at 1), with 3
values for each declared keyword (in the order the keywords have been
declared). For each keyword, the stress tensor components are ordered as
follows: stress_dir,x, stress_dir,y, and stress_dir,z.
Compute {stress/mop/profile} instead calculates a global array, with 1 column
giving the position of the planes where the stress tensor was computed,
and with 3 columns of values for each declared keyword (in the order the
keywords have been declared). For each keyword, the profiles of stress
tensor components are ordered as follows: stress_dir,x; stress_dir,y;
and stress_dir,z.
The values are in pressure "units"_units.html.
The values produced by this compute can be accessed by various "output commands"_Howto_output.html. For instance, the results can be written to a file using the "fix ave/time"_fix_ave_time.html command. Please see the example in the examples/USER/mop folder.
[Restrictions:]
These styles are part of the USER-MISC package. They are only enabled if
LAMMPS is built with that package. See the "Build package"_Build_package.html
doc page on for more info.
The method is only implemented for 3d orthogonal simulation boxes whose
size does not change in time, and axis-aligned planes.
The method only works with two-body pair interactions, because it
requires the class method pair->single() to be implemented. In
particular, it does not work with more than two-body pair interactions,
intra-molecular interactions, and long range (kspace) interactions.
[Related commands:]
"compute stress/atom"_compute_stress_atom.html
[Default:] none
:line
:link(mop-todd)
[(Todd)] B. D. Todd, Denis J. Evans, and Peter J. Daivis: "Pressure tensor for inhomogeneous fluids",
Phys. Rev. E 52, 1627 (1995).

View File

@ -6,6 +6,7 @@ Computes :h1
:maxdepth: 1
compute_ackland_atom
compute_adf
compute_angle
compute_angle_local
compute_angmom_chunk
@ -15,6 +16,7 @@ Computes :h1
compute_bond_local
compute_centro_atom
compute_chunk_atom
compute_chunk_spread_atom
compute_cluster_atom
compute_cna_atom
compute_cnp_atom
@ -66,12 +68,15 @@ Computes :h1
compute_pe_atom
compute_plasticity_atom
compute_pressure
compute_pressure_cylinder
compute_pressure_uef
compute_property_atom
compute_property_chunk
compute_property_local
compute_ptm_atom
compute_rdf
compute_reduce
compute_reduce_chunk
compute_rigid_local
compute_saed
compute_slice
@ -89,7 +94,7 @@ Computes :h1
compute_smd_tlsph_strain
compute_smd_tlsph_strain_rate
compute_smd_tlsph_stress
compute_smd_triangle_mesh_vertices
compute_smd_triangle_vertices
compute_smd_ulsph_num_neighs
compute_smd_ulsph_strain
compute_smd_ulsph_strain_rate
@ -98,6 +103,7 @@ Computes :h1
compute_sna_atom
compute_spin
compute_stress_atom
compute_stress_mop
compute_tally
compute_tdpd_cc_atom
compute_temp

View File

@ -16,7 +16,7 @@ dihedral_style nharmonic :pre
[Examples:]
dihedral_style nharmonic
dihedral_coeff 3 10.0 20.0 30.0 :pre
dihedral_coeff * 3 10.0 20.0 30.0 :pre
[Description:]

View File

@ -85,16 +85,24 @@ which are included in the LAMMPS distribution. The full list of all
dihedral styles is on the "Commands bond"_Commands_bond.html#dihedral
doc page.
"dihedral_style none"_dihedral_none.html - turn off dihedral interactions
"dihedral_style zero"_dihedral_zero.html - topology but no interactions
"dihedral_style hybrid"_dihedral_hybrid.html - define multiple styles of dihedral interactions :ul
"none"_dihedral_none.html - turn off dihedral interactions
"zero"_dihedral_zero.html - topology but no interactions
"hybrid"_dihedral_hybrid.html - define multiple styles of dihedral interactions :ul
"dihedral_style charmm"_dihedral_charmm.html - CHARMM dihedral
"dihedral_style class2"_dihedral_class2.html - COMPASS (class 2) dihedral
"dihedral_style harmonic"_dihedral_harmonic.html - harmonic dihedral
"dihedral_style helix"_dihedral_helix.html - helix dihedral
"dihedral_style multi/harmonic"_dihedral_multi_harmonic.html - multi-harmonic dihedral
"dihedral_style opls"_dihedral_opls.html - OPLS dihedral :ul
"charmm"_dihedral_charmm.html - CHARMM dihedral
"charmmfsw"_dihedral_charmm.html - CHARMM dihedral with force switching
"class2"_dihedral_class2.html - COMPASS (class 2) dihedral
"cosine/shift/exp"_dihedral_cosine_shift_exp.html - dihedral with exponential in spring constant
"fourier"_dihedral_fourier.html - dihedral with multiple cosine terms
"harmonic"_dihedral_harmonic.html - harmonic dihedral
"helix"_dihedral_helix.html - helix dihedral
"multi/harmonic"_dihedral_multi_harmonic.html - dihedral with 5 harmonic terms
"nharmonic"_dihedral_nharmonic.html - same as multi-harmonic with N terms
"opls"_dihedral_opls.html - OPLS dihedral
"quadratic"_dihedral_quadratic.html - dihedral with quadratic term in angle
"spherical"_dihedral_spherical.html - dihedral which includes angle terms to avoid singularities
"table"_dihedral_table.html - tabulated dihedral
"table/cut"_dihedral_table_cut.html - tabulated dihedral with analytic cutoff :ul
:line

View File

@ -50,7 +50,7 @@ dump h5md1 all h5md 100 dump_h5md.h5 velocity author "John Doe" :pre
[Description:]
Dump a snapshot of atom coordinates every N timesteps in the
"HDF5"_HDF5_ws based "H5MD"_h5md file format "(de Buyl)"_#h5md_cpc.
"HDF5"_HDF5-ws based "H5MD"_h5md file format "(de Buyl)"_#h5md_cpc.
HDF5 files are binary, portable and self-describing. This dump style
will write only one file, on the root node.
@ -102,11 +102,11 @@ enabled if LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info. It also requires
(i) building the ch5md library provided with LAMMPS (See the "Build
package"_Build_package.html doc page for more info.) and (ii) having
the "HDF5"_HDF5_ws library installed (C bindings are sufficient) on
the "HDF5"_HDF5-ws library installed (C bindings are sufficient) on
your system. The library ch5md is compiled with the h5cc wrapper
provided by the HDF5 library.
:link(HDF5_ws,http://www.hdfgroup.org/HDF5/)
:link(HDF5-ws,http://www.hdfgroup.org/HDF5/)
:line

View File

@ -384,12 +384,7 @@ change this via the "dump_modify"_dump_modify.html command.
:line
The {fix} keyword can be used with a "fix"_fix.html that produces
objects to be drawn. An example is the "fix
surface/global"_fix_surface_global.html command which can draw lines
or triangles for 2d/3d simulations.
NOTE: Aug 2016 - The fix surface/global command is not yet added to
LAMMPS.
objects to be drawn.
The {fflag1} and {fflag2} settings are numerical values which are
passed to the fix to affect how the drawing of its objects is done.

View File

@ -167,136 +167,217 @@ page are followed by one or more of (g,i,k,o,t) to indicate which
accelerated styles exist.
"adapt"_fix_adapt.html - change a simulation parameter over time
"adapt/fep"_fix_adapt_fep.html -
"addforce"_fix_addforce.html - add a force to each atom
"addtorque"_fix_addtorque.html -
"append/atoms"_fix_append_atoms.html - append atoms to a running simulation
"atc"_fix_atc.html -
"atom/swap"_fix_atom_swap.html - Monte Carlo atom type swapping
"aveforce"_fix_aveforce.html - add an averaged force to each atom
"ave/atom"_fix_ave_atom.html - compute per-atom time-averaged quantities
"ave/chunk"_fix_ave_chunk.html - compute per-chunk time-averaged quantities
"ave/correlate"_fix_ave_correlate.html - compute/output time correlations
"ave/correlate/long"_fix_ave_correlate_long.html -
"ave/histo"_fix_ave_histo.html - compute/output time-averaged histograms
"ave/histo/weight"_fix_ave_histo.html -
"ave/time"_fix_ave_time.html - compute/output global time-averaged quantities
"aveforce"_fix_aveforce.html - add an averaged force to each atom
"balance"_fix_balance.html - perform dynamic load-balancing
"bocs"_fix_bocs.html -
"bond/break"_fix_bond_break.html - break bonds on the fly
"bond/create"_fix_bond_create.html - create bonds on the fly
"bond/react"_fix_bond_react.html -
"bond/swap"_fix_bond_swap.html - Monte Carlo bond swapping
"box/relax"_fix_box_relax.html - relax box size during energy minimization
"client/md"_fix_client_md.html -
"cmap"_fix_cmap.html -
"colvars"_fix_colvars.html -
"controller"_fix_controller.html -
"deform"_fix_deform.html - change the simulation box size/shape
"deposit"_fix_deposit.html - add new atoms above a surface
"dpd/energy"_fix_dpd_energy.html -
"drag"_fix_drag.html - drag atoms towards a defined coordinate
"drude"_fix_drude.html -
"drude/transform/direct"_fix_drude_transform.html -
"drude/transform/inverse"_fix_drude_transform.html -
"dt/reset"_fix_dt_reset.html - reset the timestep based on velocity, forces
"edpd/source"_fix_dpd_source.html -
"efield"_fix_efield.html - impose electric field on system
"ehex"_fix_ehex.html - ehanced heat exchange algorithm
"enforce2d"_fix_enforce2d.html - zero out z-dimension velocity and force
"eos/cv"_fix_eos_cv.html -
"eos/table"_fix_eos_table.html -
"eos/table/rx"_fix_eos_table_rx.html -
"evaporate"_fix_evaporate.html - remove atoms from simulation periodically
"external"_fix_external.html - callback to an external driver program
"ffl"_fix_ffl.html -
"filter/corotate"_fix_filter_corotate.html -
"flow/gauss"_fix_flow_gauss.html -
"freeze"_fix_freeze.html - freeze atoms in a granular simulation
"gcmc"_fix_gcmc.html - grand canonical insertions/deletions
"gld"_fix_gcmc.html - generalized Langevin dynamics integrator
"gld"_fix_gld.html -
"gle"_fix_gle.html -
"gravity"_fix_gravity.html - add gravity to atoms in a granular simulation
"grem"_fix_grem.html -
"halt"_fix_halt.html - terminate a dynamics run or minimization
"heat"_fix_heat.html - add/subtract momentum-conserving heat
"hyper/global"_fix_hyper_global.html - global hyperdynamics
"hyper/local"_fix_hyper_local.html - local hyperdynamics
"imd"_fix_imd.html -
"indent"_fix_indent.html - impose force due to an indenter
"latte"_fix_latte.html - wrapper on LATTE density-functional tight-binding code
"ipi"_fix_ipi.html -
"langevin"_fix_langevin.html - Langevin temperature control
"langevin/drude"_fix_langevin_drude.html -
"langevin/eff"_fix_langevin_eff.html -
"langevin/spin"_fix_langevin_spin.html -
"latte"_fix_latte.html - wrapper on LATTE density-functional tight-binding code
"lb/fluid"_fix_lb_fluid.html -
"lb/momentum"_fix_lb_momentum.html -
"lb/pc"_fix_lb_pc.html -
"lb/rigid/pc/sphere"_fix_lb_rigid_pc_sphere.html -
"lb/viscous"_fix_lb_viscous.html -
"lineforce"_fix_lineforce.html - constrain atoms to move in a line
"manifoldforce"_fix_manifoldforce.html -
"meso"_fix_meso.html -
"meso"_fix_meso_move.html - move mesoscopic SPH/SDPD particles in a prescribed fashion
"meso/move"_fix_meso_move.html -
"meso/stationary"_fix_meso_stationary.html -
"momentum"_fix_momentum.html - zero the linear and/or angular momentum of a group of atoms
"move"_fix_move.html - move atoms in a prescribed fashion
"mscg"_fix_mscg.html -
"msst"_fix_msst.html - multi-scale shock technique (MSST) integration
"mvv/dpd"_fix_mvv_dpd.html -
"mvv/edpd"_fix_mvv_dpd.html -
"mvv/tdpd"_fix_mvv_dpd.html -
"neb"_fix_neb.html - nudged elastic band (NEB) spring forces
"nph"_fix_nh.html - constant NPH time integration via Nose/Hoover
"nphug"_fix_nphug.html - constant-stress Hugoniostat integration
"nph/asphere"_fix_nph_asphere.html - NPH for aspherical particles
"nph/body"_fix_nph_body.html -
"nph/body"_fix_nve_body.html - NPH for body particles
"nph/eff"_fix_nh_eff.html -
"nph/sphere"_fix_nph_sphere.html - NPH for spherical particles
"nphug"_fix_nphug.html - constant-stress Hugoniostat integration
"npt"_fix_nh.html - constant NPT time integration via Nose/Hoover
"npt/asphere"_fix_npt_asphere.html - NPT for aspherical particles
"npt/body"_fix_npt_body.html -
"npt/body"_fix_nve_body.html - NPT for body particles
"npt/eff"_fix_nh_eff.html -
"npt/sphere"_fix_npt_sphere.html - NPT for spherical particles
"npt/uef"_fix_nh_uef.html -
"nve"_fix_nve.html - constant NVE time integration
"nve/asphere"_fix_nve_asphere.html - NVE for aspherical particles
"nve/asphere/noforce"_fix_nve_asphere_noforce.html - NVE for aspherical particles without forces"
"nve/awpmd"_fix_nve_awpmd.html -
"nve/body"_fix_nve_body.html - NVE for body particles
"nve/dot"_fix_nve_dot.html -
"nve/dotc/langevin"_fix_nve_dotc_langevin.html -
"nve/eff"_fix_nve_eff.html -
"nve/limit"_fix_nve_limit.html - NVE with limited step length
"nve/line"_fix_nve_line.html - NVE for line segments
"nve/manifold/rattle"_fix_nve_manifold_rattle.html -
"nve/noforce"_fix_nve_noforce.html - NVE without forces (v only)
"nve/sphere"_fix_nve_sphere.html - NVE for spherical particles
"nve/spin"_fix_nve_spin.html -
"nve/tri"_fix_nve_tri.html - NVE for triangles
"nvk"_fix_nvk.html -
"nvt"_fix_nh.html - constant NVT time integration via Nose/Hoover
"nvt/asphere"_fix_nvt_asphere.html - NVT for aspherical particles
"nvt/body"_fix_nve_body.html - NVT for body particles
"nvt/body"_fix_nvt_body.html -
"nvt/eff"_fix_nh_eff.html -
"nvt/manifold/rattle"_fix_nvt_manifold_rattle.html -
"nvt/sllod"_fix_nvt_sllod.html - NVT for NEMD with SLLOD equations
"nvt/sllod/eff"_fix_nvt_sllod_eff.html -
"nvt/sphere"_fix_nvt_sphere.html - NVT for spherical particles
"nvt/uef"_fix_nh_uef.html -
"oneway"_fix_oneway.html - constrain particles on move in one direction
"orient/bcc"_fix_orient.html - add grain boundary migration force for BCC
"orient/fcc"_fix_orient.html - add grain boundary migration force for FCC
"phonon"_fix_phonon.html -
"pimd"_fix_pimd.html -
"planeforce"_fix_planeforce.html - constrain atoms to move in a plane
"poems"_fix_poems.html - constrain clusters of atoms to move \
as coupled rigid bodies
"plumed"_fix_plumed.html - wrapper on PLUMED free energy library
"poems"_fix_poems.html - constrain clusters of atoms to move as coupled rigid bodies
"pour"_fix_pour.html - pour new atoms/molecules into a granular simulation domain
"press/berendsen"_fix_press_berendsen.html - pressure control by \
Berendsen barostat
"precession/spin"_fix_precession_spin.html -
"press/berendsen"_fix_press_berendsen.html - pressure control by Berendsen barostat
"print"_fix_print.html - print text and variables during a simulation
"property/atom"_fix_property_atom.html - add customized per-atom values
"qeq/comb"_fix_qeq_comb.html - charge equilibration for COMB potential \
"qeq/dynamic"_fix_qeq.html - charge equilibration via dynamic method \
"qeq/fire"_fix_qeq.html - charge equilibration via FIRE minimizer \
"qeq/point"_fix_qeq.html - charge equilibration via point method \
"qeq/shielded"_fix_qeq.html - charge equilibration via shielded method \
"qeq/slater"_fix_qeq.html - charge equilibration via Slater method \
"python/invoke"_fix_python_invoke.html -
"python/move"_fix_python_move.html -
"qbmsst"_fix_qbmsst.html -
"qeq/comb"_fix_qeq_comb.html - charge equilibration for COMB potential
"qeq/dynamic"_fix_qeq.html - charge equilibration via dynamic method
"qeq/fire"_fix_qeq.html - charge equilibration via FIRE minimizer
"qeq/point"_fix_qeq.html - charge equilibration via point method
"qeq/reax"_fix_qeq_reax.html -
"qeq/shielded"_fix_qeq.html - charge equilibration via shielded method
"qeq/slater"_fix_qeq.html - charge equilibration via Slater method
"qmmm"_fix_qmmm.html -
"qtb"_fix_qtb.html -
"rattle"_fix_shake.html - RATTLE constraints on bonds and/or angles
"reax/bonds"_fix_reax_bonds.html - write out ReaxFF bond information \
"recenter"_fix_recenter.html - constrain the center-of-mass position \
of a group of atoms
"reax/bonds"_fix_reax_bonds.html - write out ReaxFF bond information
"reax/c/bonds"_fix_reax_bonds.html -
"reax/c/species"_fix_reaxc_species.html -
"recenter"_fix_recenter.html - constrain the center-of-mass position of a group of atoms
"restrain"_fix_restrain.html - constrain a bond, angle, dihedral
"rigid"_fix_rigid.html - constrain one or more clusters of atoms to \
move as a rigid body with NVE integration
"rigid/nph"_fix_rigid.html - constrain one or more clusters of atoms to \
move as a rigid body with NPH integration
"rigid/npt"_fix_rigid.html - constrain one or more clusters of atoms to \
move as a rigid body with NPT integration
"rigid/nve"_fix_rigid.html - constrain one or more clusters of atoms to \
move as a rigid body with alternate NVE integration
"rigid/nvt"_fix_rigid.html - constrain one or more clusters of atoms to \
move as a rigid body with NVT integration
"rigid/small"_fix_rigid.html - constrain many small clusters of atoms to \
move as a rigid body with NVE integration
"rigid/small/nph"_fix_rigid.html - constrain many small clusters of atoms to \
move as a rigid body with NPH integration
"rigid/small/npt"_fix_rigid.html - constrain many small clusters of atoms to \
move as a rigid body with NPT integration
"rigid/small/nve"_fix_rigid.html - constrain many small clusters of atoms to \
move as a rigid body with alternate NVE integration
"rigid/small/nvt"_fix_rigid.html - constrain many small clusters of atoms to \
move as a rigid body with NVT integration
"rhok"_fix_rhok.html -
"rigid"_fix_rigid.html - constrain one or more clusters of atoms to move as a rigid body with NVE integration
"rigid/nph"_fix_rigid.html - constrain one or more clusters of atoms to move as a rigid body with NPH integration
"rigid/nph/small"_fix_rigid.html -
"rigid/npt"_fix_rigid.html - constrain one or more clusters of atoms to move as a rigid body with NPT integration
"rigid/npt/small"_fix_rigid.html -
"rigid/nve"_fix_rigid.html - constrain one or more clusters of atoms to move as a rigid body with alternate NVE integration
"rigid/nve/small"_fix_rigid.html -
"rigid/nvt"_fix_rigid.html - constrain one or more clusters of atoms to move as a rigid body with NVT integration
"rigid/nvt/small"_fix_rigid.html -
"rigid/small"_fix_rigid.html - constrain many small clusters of atoms to move as a rigid body with NVE integration
"rigid/small/nph"_fix_rigid.html - constrain many small clusters of atoms to move as a rigid body with NPH integration
"rigid/small/npt"_fix_rigid.html - constrain many small clusters of atoms to move as a rigid body with NPT integration
"rigid/small/nve"_fix_rigid.html - constrain many small clusters of atoms to move as a rigid body with alternate NVE integration
"rigid/small/nvt"_fix_rigid.html - constrain many small clusters of atoms to move as a rigid body with NVT integration
"rigid/meso"_fix_rigid_meso.html - constrain clusters of mesoscopic SPH/SDPD particles to move as a rigid body
"rx"_fix_rx.html -
"saed/vtk"_fix_saed_vtk.html -
"setforce"_fix_setforce.html - set the force on each atom
"shake"_fix_shake.html - SHAKE constraints on bonds and/or angles
"shardlow"_fix_shardlow.html -
"smd"_fix_smd.html -
"smd/adjust_dt"_fix_smd_adjust_dt.html -
"smd/integrate_tlsph"_fix_smd_integrate_tlsph.html -
"smd/integrate_ulsph"_fix_smd_integrate_ulsph.html -
"smd/move_tri_surf"_fix_smd_move_triangulated_surface.html -
"smd/setvel"_fix_smd_setvel.html -
"smd/wall_surface"_fix_smd_wall_surface.html -
"spring"_fix_spring.html - apply harmonic spring force to group of atoms
"spring/chunk"_fix_spring_chunk.html - apply harmonic spring force to each chunk of atoms
"spring/rg"_fix_spring_rg.html - spring on radius of gyration of \
group of atoms
"spring/rg"_fix_spring_rg.html - spring on radius of gyration of group of atoms
"spring/self"_fix_spring_self.html - spring from each atom to its origin
"srd"_fix_srd.html - stochastic rotation dynamics (SRD)
"store/force"_fix_store_force.html - store force on each atom
"store/state"_fix_store_state.html - store attributes for each atom
"temp/berendsen"_fix_temp_berendsen.html - temperature control by \
Berendsen thermostat
"tdpd/source"_fix_dpd_source.html -
"temp/berendsen"_fix_temp_berendsen.html - temperature control by Berendsen thermostat
"temp/csld"_fix_temp_csvr.html - canonical sampling thermostat with Langevin dynamics
"temp/csvr"_fix_temp_csvr.html - canonical sampling thermostat with Hamiltonian dynamics
"temp/rescale"_fix_temp_rescale.html - temperature control by \
velocity rescaling
"temp/rescale"_fix_temp_rescale.html - temperature control by velocity rescaling
"temp/rescale/eff"_fix_temp_rescale_eff.html -
"tfmc"_fix_tfmc.html - perform force-bias Monte Carlo with time-stamped method
"thermal/conductivity"_fix_thermal_conductivity.html - Muller-Plathe kinetic energy exchange for \
thermal conductivity calculation
"thermal/conductivity"_fix_thermal_conductivity.html - Muller-Plathe kinetic energy exchange for thermal conductivity calculation
"ti/spring"_fix_ti_spring.html -
"tmd"_fix_tmd.html - guide a group of atoms to a new configuration
"ttm"_fix_ttm.html - two-temperature model for electronic/atomic coupling
"ttm/mod"_fix_ttm.html -
"tune/kspace"_fix_tune_kspace.html - auto-tune KSpace parameters
"vector"_fix_vector.html - accumulate a global vector every N timesteps
"viscosity"_fix_viscosity.html - Muller-Plathe momentum exchange for \
viscosity calculation
"viscosity"_fix_viscosity.html - Muller-Plathe momentum exchange for viscosity calculation
"viscous"_fix_viscous.html - viscous damping for granular simulations
"wall/body/polygon"_fix_wall_body_polygon.html -
"wall/body/polyhedron"_fix_wall_body_polyhedron.html -
"wall/colloid"_fix_wall.html - Lennard-Jones wall interacting with finite-size particles
"wall/ees"_fix_wall_ees.html -
"wall/gran"_fix_wall_gran.html - frictional wall(s) for granular simulations
"wall/gran/region"_fix_wall_gran_region.html -
"wall/harmonic"_fix_wall.html - harmonic spring wall
"wall/lj1043"_fix_wall.html - Lennard-Jones 10-4-3 wall
"wall/lj126"_fix_wall.html - Lennard-Jones 12-6 wall
@ -304,6 +385,7 @@ accelerated styles exist.
"wall/piston"_fix_wall_piston.html - moving reflective piston wall
"wall/reflect"_fix_wall_reflect.html - reflecting wall(s)
"wall/region"_fix_wall_region.html - use region surface as wall
"wall/region/ees"_fix_wall_ees.html -
"wall/srd"_fix_wall_srd.html - slip/no-slip wall for SRD particles :ul
[Restrictions:]

View File

@ -376,3 +376,4 @@ appear in {dimstr} for the {shift} style.
"group"_group.html, "processors"_processors.html, "balance"_balance.html
[Default:] none
:link(pizza,http://pizza.sandia.gov)

View File

@ -137,8 +137,8 @@ doc page for more info.
[Related commands:]
"fix bond/create"_fix_bond_create.html, "fix
bond/swap"_fix_bond_swap.html, "dump local"_dump.html,
"special_bonds"_special_bonds.html
bond/react"_fix_bond_react.html, "fix bond/swap"_fix_bond_swap.html,
"dump local"_dump.html, "special_bonds"_special_bonds.html
[Default:]

View File

@ -232,8 +232,8 @@ doc page for more info.
[Related commands:]
"fix bond/break"_fix_bond_break.html, "fix
bond/swap"_fix_bond_swap.html, "dump local"_dump.html,
"special_bonds"_special_bonds.html
bond/react"_fix_bond_react.html, "fix bond/swap"_fix_bond_swap.html,
"dump local"_dump.html, "special_bonds"_special_bonds.html
[Default:]

View File

@ -24,11 +24,11 @@ common_keyword = {stabilization} :l
{stabilization} values = {no} or {yes} {group-ID} {xmax}
{no} = no reaction site stabilization
{yes} = perform reaction site stabilization
{group-ID} = user-assigned ID for all non-reacting atoms (group created internally)
{group-ID} = user-assigned prefix for the dynamic group of non-reacting atoms
{xmax} = xmax value that is used by an internally created "nve/limit"_fix_nve_limit.html integrator :pre
react = mandatory argument indicating new reaction specification :l
react-ID = user-assigned name for the reaction :l
react-group-ID = only atoms in this group are available for the reaction :l
react-group-ID = only atoms in this group are considered for the reaction :l
Nevery = attempt reaction every this many steps :l
Rmin = bonding pair atoms must be separated by more than Rmin to initiate reaction (distance units) :l
Rmax = bonding pair atoms must be separated by less than Rmax to initiate reaction (distance units) :l
@ -41,14 +41,18 @@ react = mandatory argument indicating new reaction specification :l
fraction = initiate reaction with this probability if otherwise eligible
seed = random number seed (positive integer)
{stabilize_steps} value = timesteps
timesteps = number of timesteps to apply internally created nve/limit.html :pre
timesteps = number of timesteps to apply internally created nve/limit fix :pre
{update_edges} value = {none} or {charges} :l
none = do not update topology near the edges of reaction templates
charges = update atomic charges of all atoms in reaction templates
custom = force the update of user-specified atomic charges :pre
:ule
[Examples:]
molecule mol1 pre_reacted_topology.txt
molecule mol2 post_reacted_topology.txt
fix 5 all bond/react stabilization no react myrxn1 all 1 0 3.25 mol1 mol2 map_file.txt :pre
fix 5 all bond/react react myrxn1 all 1 0 3.25 mol1 mol2 map_file.txt :pre
molecule mol1 pre_reacted_rxn1.txt
molecule mol2 post_reacted_rxn1.txt
@ -57,7 +61,7 @@ molecule mol4 post_reacted_rxn2.txt
fix 5 all bond/react stabilization yes nvt_grp .03 &
react myrxn1 all 1 0 3.25 mol1 mol2 map_file_rxn1.txt prob 0.50 12345 &
react myrxn2 all 1 0 2.75 mol3 mol4 map_file_rxn2.txt prob 0.25 12345
fix 6 nvt_grp nvt temp 300 300 100 # set thermostat after bond/react :pre
fix 6 nvt_grp_REACT nvt temp 300 300 100 # set thermostat after bond/react :pre
[Description:]
@ -99,19 +103,29 @@ involved in any new reactions. The {xmax} value keyword should
typically be set to the maximum distance that non-reacting atoms move
during the simulation.
The group-ID set using the {stabilization} keyword should be a
previously unused group-ID. It cannot be specified as 'all'. The fix
bond/react command creates a "dynamic group"_group.html of this name
that includes all non-reacting atoms. This dynamic group-ID should
then be used by a subsequent system-wide time integrator such as nvt,
npt, or nve, as shown in the second example above. It is currently
necessary to place the time integration command after the fix
bond/react command due to the internal dynamic grouping performed by
fix bond/react.
The group-ID set using the {stabilization} keyword can be an existing
static group or a previously-unused group-ID. It cannot be specified
as 'all'. If the group-ID is previously unused, the fix bond/react
command creates a "dynamic group"_group.html that is initialized to
include all atoms. If the group-ID is that of an existing static
group, the group is used as the parent group of new,
internally-created dynamic group. In both cases, this new dynamic
group is named by appending '_REACT' to the group-ID, e.g.
nvt_grp_REACT. By specifying an existing group, you may thermostat
constant-topology parts of your system separately. The dynamic group
contains only non-reacting atoms at a given timestep, and therefore
should be used by a subsequent system-wide time integrator such as
nvt, npt, or nve, as shown in the second example above. The time
integration command should be placed after the fix bond/react command
due to the internal dynamic grouping performed by fix bond/react.
NOTE: The internally created group currently applies to all atoms in
the system, i.e. you should generally not have a separate thermostat
which acts on the 'all' group.
NOTE: If the group-ID is an existing static group, react-group-IDs
should also be specified as this static group, or a subset.
NOTE: If the group-ID is previously unused, the internally created
group applies to all atoms in the system, i.e. you should generally
not have a separate thermostat which acts on the 'all' group, or any
other group.
The following comments pertain to each {react} argument:
@ -155,7 +169,17 @@ Some atoms in the pre-reacted template that are not reacting may have
missing topology with respect to the simulation. For example, the
pre-reacted template may contain an atom that would connect to the
rest of a long polymer chain. These are referred to as edge atoms, and
are also specified in the map file.
are also specified in the map file. When the pre-reaction template
contains edge atoms, not all atoms, bonds, charges, etc. specified in
the reaction templates will be updated. Specifically, topology that
involves only atoms that are 'too near' to template edges will not be
updated. The definition of 'too near the edge' depends on which
interactions are defined in the simulation. If the simulation has
defined dihedrals, atoms within two bonds of edge atoms are considered
'too near the edge.' If the simulation defines angles, but not
dihedrals, atoms within one bond of edge atoms are considered 'too
near the edge.' If just bonds are defined, only edge atoms are
considered 'too near the edge.'
Note that some care must be taken when a building a molecule template
for a given simulation. All atom types in the pre-reacted template
@ -178,23 +202,30 @@ A discussion of correctly handling this is also provided on the
The map file is a text document with the following format:
A map file has a header and a body. The header of map file the
contains one mandatory keyword and one optional keyword. The mandatory
keyword is 'equivalences' and the optional keyword is 'edgeIDs':
contains one mandatory keyword and two optional keywords. The mandatory
keyword is 'equivalences' and the optional keywords are 'edgeIDs' and
'customIDs':
N {equivalences} = # of atoms N in the reaction molecule templates
N {edgeIDs} = # of edge atoms N in the pre-reacted molecule template :pre
N {edgeIDs} = # of edge atoms N in the pre-reacted molecule template
N {customIDs} = # of atoms N that are specified for a custom update :pre
The body of the map file contains two mandatory sections and one
optional section. The first mandatory section begins with the keyword
The body of the map file contains two mandatory sections and two
optional sections. The first mandatory section begins with the keyword
'BondingIDs' and lists the atom IDs of the bonding atom pair in the
pre-reacted molecule template. The second mandatory section begins
with the keyword 'Equivalences' and lists a one-to-one correspondence
between atom IDs of the pre- and post-reacted templates. The first
column is an atom ID of the pre-reacted molecule template, and the
second column is the corresponding atom ID of the post-reacted
molecule template. The optional section begins with the keyword
molecule template. The first optional section begins with the keyword
'EdgeIDs' and lists the atom IDs of edge atoms in the pre-reacted
molecule template.
molecule template. The second optional section begins with the keyword
'Custom Edges' and allows for forcing the update of a specific atom's
atomic charge. The first column is the ID of an atom near the edge of
the pre-reacted molecule template, and the value of the second column
is either 'none' or 'charges.' Further details are provided in the
discussion of the 'update_edges' keyword.
A sample map file is given below:
@ -255,6 +286,18 @@ The {stabilize_steps} keyword allows for the specification of how many
timesteps a reaction site is stabilized before being returned to the
overall system thermostat.
The {update_edges} keyword can increase the number of atoms whose
atomic charges are updated, when the pre-reaction template contains
edge atoms. When the value is set to 'charges,' all atoms' atomic
charges are updated to those specified by the post-reaction template,
including atoms near the edge of reaction templates. When the value is
set to 'custom,' an additional section must be included in the map
file that specifies whether to update charges, on a per-atom basis.
The format of this section is detailed above. Listing a pre-reaction
atom ID with a value of 'charges' will force the update of the atom's
charge, even if it is near a template edge. Atoms not near a template
edge are unaffected by this setting.
In order to produce the most physical behavior, this 'reaction site
equilibration time' should be tuned to be as small as possible while
retaining stability for a given system or reaction step. After a
@ -323,7 +366,7 @@ bond/break"_fix_bond_break.html, "fix bond/swap"_fix_bond_swap.html,
[Default:]
The option defaults are stabilization = no, prob = 1.0, stabilize_steps = 60
The option defaults are stabilization = no, prob = 1.0, stabilize_steps = 60, update_edges = none
:line

View File

@ -221,8 +221,8 @@ This equation only applies when the box dimensions are equal to those
of the reference dimensions. If this is not the case, then the
converged stress tensor will not equal that specified by the user. We
can resolve this problem by periodically resetting the reference
dimensions. The keyword {nreset_ref} controls how often this is done.
If this keyword is not used, or is given a value of zero, then the
dimensions. The keyword {nreset} controls how often this is done. If
this keyword is not used, or is given a value of zero, then the
reference dimensions are set to those of the initial simulation domain
and are never changed. A value of {nstep} means that every {nstep}
minimization steps, the reference dimensions are set to those of the

View File

@ -50,7 +50,7 @@ md"_server_md.html doc page.
Note that when using LAMMPS as an MD client, your LAMMPS input script
should not normally contain force field commands, like a
"pair_style"_doc/pair_style.html, "bond_style"_doc/bond_style.html, or
"pair_style"_pair_style.html, "bond_style"_bond_style.html, or
"kspace_style"_kspace_style.html commmand. However it is possible for
a server code to only compute a portion of the full force-field, while
LAMMPS computes the remaining part. Your LAMMPS script can also

View File

@ -116,7 +116,8 @@ not a limitation of functionality.
[Related commands:]
"fix smd"_fix_smd.html
"fix smd"_fix_smd.html, "fix spring"_fix_spring.html,
"fix plumed"_fix_plumed.html
[Default:]
@ -126,4 +127,4 @@ and tstat = NULL.
:line
:link(Fiorin)
[(Fiorin)] Fiorin , Klein, Henin, Mol. Phys., DOI:10.1080/00268976.2013.813594
[(Fiorin)] Fiorin, Klein, Henin, Mol. Phys., DOI:10.1080/00268976.2013.813594

124
doc/src/fix_ffl.txt Normal file
View File

@ -0,0 +1,124 @@
<script type="text/javascript"
src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
</script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({ TeX: { equationNumbers: {autoNumber: "AMS"} } });
</script>
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
fix ffl command :h3
[Syntax:]
fix ID id-group ffl tau Tstart Tstop seed \[flip-type\] :pre
ID, group-ID are documented in "fix"_fix.html command :ulb,l
ffl = style name of this fix command :l
tau = thermostat parameter (positive real) :l
Tstart, Tstop = temperature ramp during the run :l
seed = random number seed to use for generating noise (positive integer) :l
one more value may be appended :l
flip-type = determines the flipping type, can be chosen between rescale - no_flip - hard - soft, if no flip type is given, rescale will be chosen by default :pre
:ule
[Examples:]
fix 3 boundary ffl 10 300 300 31415
fix 1 all ffl 100 500 500 9265 soft :pre
[Description:]
Apply a Fast-Forward Langevin Equation (FFL) thermostat as described
in "(Hijazi)"_#Hijazi. Contrary to
"fix langevin"_fix_langevin.html, this fix performs both
thermostatting and evolution of the Hamiltonian equations of motion, so it
should not be used together with "fix nve"_fix_nve.html -- at least not
on the same atom groups.
The time-evolution of a single particle undergoing Langevin dynamics is described
by the equations
\begin\{equation\} \frac \{dq\}\{dt\} = \frac\{p\}\{m\}, \end\{equation\}
\begin\{equation\} \frac \{dp\}\{dt\} = -\gamma p + W + F, \end\{equation\}
where \(F\) is the physical force, \(\gamma\) is the friction coefficient, and \(W\) is a
Gaussian random force.
The friction coefficient is the inverse of the thermostat parameter : \(\gamma = 1/\tau\), with \(\tau\) the thermostat parameter {tau}.
The thermostat parameter is given in the time units, \(\gamma\) is in inverse time units.
Equilibrium sampling a temperature T is obtained by specifying the
target value as the {Tstart} and {Tstop} arguments, so that the internal
constants depending on the temperature are computed automatically.
The random number {seed} must be a positive integer. A Marsaglia random
number generator is used. Each processor uses the input seed to
generate its own unique seed and its own stream of random numbers.
Thus the dynamics of the system will not be identical on two runs on
different numbers of processors.
The flipping type {flip-type} can be chosen between 4 types described in
"(Hijazi)"_#Hijazi. The flipping operation occurs during the thermostatting
step and it flips the momenta of the atoms. If no_flip is chosen, no flip
will be executed and the integration will be the same as a standard
Langevin thermostat "(Bussi)"_#Bussi3. The other flipping types are : rescale - hard - soft.
[Restart, fix_modify, output, run start/stop, minimize info:]
The instantaneous values of the extended variables are written to
"binary restart files"_restart.html. Because the state of the random
number generator is not saved in restart files, this means you cannot
do "exact" restarts with this fix, where the simulation continues on
the same as if no restart had taken place. However, in a statistical
sense, a restarted simulation should produce the same behavior.
Note however that you should use a different seed each time you
restart, otherwise the same sequence of random numbers will be used
each time, which might lead to stochastic synchronization and
subtle artefacts in the sampling.
This fix can ramp its target temperature over multiple runs, using the
{start} and {stop} keywords of the "run"_run.html command. See the
"run"_run.html command for details of how to do this.
The "fix_modify"_fix_modify.html {energy} option is supported by this
fix to add the energy change induced by Langevin thermostatting to the
system's potential energy as part of "thermodynamic
output"_thermo_style.html.
This fix computes a global scalar which can be accessed by various
"output commands"_Howto_output.html. The scalar is the cumulative
energy change due to this fix. The scalar value calculated by this
fix is "extensive".
[Restrictions:]
In order to perform constant-pressure simulations please use
"fix press/berendsen"_fix_press_berendsen.html, rather than
"fix npt"_fix_nh.html, to avoid duplicate integration of the
equations of motion.
This fix is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info.
[Related commands:]
"fix nvt"_fix_nh.html, "fix temp/rescale"_fix_temp_rescale.html, "fix
viscous"_fix_viscous.html, "fix nvt"_fix_nh.html, "pair_style
dpd/tstat"_pair_dpd.html, "fix gld"_fix_gld.html, "fix gle"_fix_gle.html
:line
:link(Hijazi)
[(Hijazi)] M. Hijazi, D. M. Wilkins, M. Ceriotti, J. Chem. Phys. 148, 184109 (2018)
:link(Bussi3)
[(Bussi)] G. Bussi, M. Parrinello, Phs. Rev. E 75, 056707 (2007)

View File

@ -7,6 +7,7 @@
:line
fix freeze command :h3
fix freeze/kk command :h3
[Syntax:]

View File

@ -8,6 +8,7 @@
fix gravity command :h3
fix gravity/omp command :h3
fix gravity/kk command :h3
[Syntax:]

View File

@ -135,8 +135,7 @@ files"_restart.html. None of the "fix_modify"_fix_modify.html options
are relevant to this fix. No global or per-atom quantities are stored
by this fix for access by various "output commands"_Howto_output.html.
No parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command. This fix is not invoked during "energy
minimization"_minimize.html.
the "run"_run.html command.
[Restrictions:] none

View File

@ -0,0 +1,260 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
fix hyper/global command :h3
[Syntax:]
fix ID group-ID hyper/global cutbond qfactor Vmax Tequil :pre
ID, group-ID are documented in "fix"_fix.html command
hyper/global = style name of this fix command
cutbond = max distance at which a pair of atoms is considered bonded (distance units)
qfactor = max strain at which bias potential goes to 0.0 (unitless)
Vmax = height of bias potential (energy units)
Tequil = equilibration temperature (temperature units) :ul
[Examples:]
fix 1 all hyper/global 1.0 0.3 0.8 300.0 :pre
[Description:]
This fix is meant to be used with the "hyper"_hyper.html command to
perform a bond-boost global hyperdynamics (GHD) simulation. The role
of this fix is to a select a single pair of atoms in the system at
each timestep to add a global bias potential to, which will alter the
dynamics of the system in a manner that effectively accelerates time.
This is in contrast to the "fix hyper/local"_fix_hyper_local.html
command, which can be user to perform a local hyperdynamics (LHD)
simulation, by adding a local bias potential to multiple pairs of
atoms at each timestep. GHD can time accelerate a small simulation
with up to a few 100 atoms. For larger systems, LHD is needed to
achieve good time acceleration.
For a system that undergoes rare transition events, where one or more
atoms move over an energy barrier to a new potential energy basin, the
effect of the bias potential is to induce more rapid transitions.
This can lead to a dramatic speed-up in the rate at which events
occurs, without altering their relative frequencies, thus leading to
an overall increase in the elapsed real time of the simulation as
compared to running for the same number of timesteps with normal MD.
See the "hyper"_hyper.html doc page for a more general discussion of
hyperdynamics and citations that explain both GHD and LHD.
The equations and logic used by this fix and described here to perform
GHD follow the description given in "(Voter2013)"_#Voter2013ghd. The
bond-boost form of a bias potential for HD is due to Miron and
Fichthorn as described in "(Miron)"_#Mironghd. In LAMMPS we use a
simplified version of bond-boost GHD where a single bond in the system
is biased at any one timestep.
Bonds are defined between each pair of I,J atoms whose R0ij distance
is less than {cutbond}, when the system is in a quenched state
(minimum) energy. Note that these are not "bonds" in a covalent
sense. A bond is simply any pair of atoms that meet the distance
criterion. {Cutbond} is an argument to this fix; it is discussed
below. A bond is only formed if one or both of the I.J atoms are in
the specified group.
The current strain of bond IJ (when running dynamics) is defined as
Eij = (Rij - R0ij) / R0ij :pre
where Rij is the current distance between atoms I,J, and R0ij is the
equilibrium distance in the quenched state.
The bias energy Vij of any bond IJ is defined as
Vij = Vmax * (1 - (Eij/q)^2) for abs(Eij) < qfactor
= 0 otherwise :pre
where the prefactor {Vmax} and the cutoff {qfactor} are arguments to
this fix; they are discussed below. This functional form is an
inverse parabola centered at 0.0 with height Vmax and which goes to
0.0 at +/- qfactor.
Let Emax = the maximum of abs(Eij) for all IJ bonds in the system on a
given timestep. On that step, Vij is added as a bias potential to
only the single bond with strain Emax, call it Vij(max). Note that
Vij(max) will be 0.0 if Emax >= qfactor on that timestep. Also note
that Vij(max) is added to the normal interatomic potential that is
computed between all atoms in the system at every step.
The derivative of Vij(max) with respect to the position of each atom
in the Emax bond gives a bias force Fij(max) acting on the bond as
Fij(max) = - dVij(max)/dEij = 2 Vmax Eij / qfactor^2 for abs(Eij) < qfactor
= 0 otherwise :pre
which can be decomposed into an equal and opposite force acting on
only the two I,J atoms in the Emax bond.
The time boost factor for the system is given each timestep I by
Bi = exp(beta * Vij(max)) :pre
where beta = 1/kTequil, and {Tequil} is the temperature of the system
and an argument to this fix. Note that Bi >= 1 at every step.
NOTE: To run GHD, the input script must also use the "fix
langevin"_fix_langevin.html command to thermostat the atoms at the
same {Tequil} as specified by this fix, so that the system is running
constant-temperature (NVT) dynamics. LAMMPS does not check that this
is done.
The elapsed time t_hyper for a GHD simulation running for {N}
timesteps is simply
t_hyper = Sum (i = 1 to N) Bi * dt :pre
where dt is the timestep size defined by the "timestep"_timestep.html
command. The effective time acceleration due to GHD is thus t_hyper /
N*dt, where N*dt is elapsed time for a normal MD run of N timesteps.
Note that in GHD, the boost factor varies from timestep to timestep.
Likewise, which bond has Emax strain and thus which pair of atoms the
bias potential is added to, will also vary from timestep to timestep.
This is in contrast to local hyperdynamics (LHD) where the boost
factor is an input parameter; see the "fix
hyper/local"_fix_hyper_local.html doc page for details.
:line
Here is additional information on the input parameters for GHD.
The {cutbond} argument is the cutoff distance for defining bonds
between pairs of nearby atoms. A pair of I,J atoms in their
equilibrium, minimum-energy configuration, which are separated by a
distance Rij < {cutbond}, are flagged as a bonded pair. Setting
{cubond} to be ~25% larger than the nearest-neighbor distance in a
crystalline lattice is a typical choice for solids, so that bonds
exist only between nearest neighbor pairs.
The {qfactor} argument is the limiting strain at which the bias
potential goes to 0.0. It is dimensionless, so a value of 0.3 means a
bond distance can be up to 30% larger or 30% smaller than the
equilibrium (quenched) R0ij distance and the two atoms in the bond
could still experience a non-zero bias force.
If {qfactor} is set too large, then transitions from one energy basin
to another are affected because the bias potential is non-zero at the
transition state (e.g. saddle point). If {qfactor} is set too small
than little boost is achieved because the Eij strain of some bond in
the system will (nearly) always exceed {qfactor}. A value of 0.3 for
{qfactor} is typically reasonable.
The {Vmax} argument is the prefactor on the bias potential. Ideally,
tt should be set to a value slightly less than the smallest barrier
height for an event to occur. Otherwise the applied bias potential
may be large enough (when added to the interatomic potential) to
produce a local energy basin with a maxima in the center. This can
produce artificial energy minima in the same basin that trap an atom.
Or if {Vmax} is even larger, it may induce an atom(s) to rapidly
transition to another energy basin. Both cases are "bad dynamics"
which violate the assumptions of GHD that guarantee an accelerated
time-accurate trajectory of the system.
Note that if {Vmax} is set too small, the GHD simulation will run
correctly. There will just be fewer events because the hyper time
(t_hyper equation above) will be shorter.
NOTE: If you have no physical intuition as to the smallest barrier
height in your system, a reasonable strategy to determine the largest
{Vmax} you can use for an LHD model, is to run a sequence of
simulations with smaller and smaller {Vmax} values, until the event
rate does not change.
The {Tequil} argument is the temperature at which the system is
simulated; see the comment above about the "fix
langevin"_fix_langevin.html thermostatting. It is also part of the
beta term in the exponential factor that determines how much boost is
achieved as a function of the bias potential.
In general, the lower the value of {Tequil} and the higher the value
of {Vmax}, the more boost will be achievable by the GHD algorithm.
:line
[Restart, fix_modify, output, run start/stop, minimize info:]
No information about this fix is written to "binary restart
files"_restart.html.
The "fix_modify"_fix_modify.html {energy} option is supported by this
fix to add the energy of the bias potential to the the system's
potential energy as part of "thermodynamic output"_thermo_style.html.
This fix computes a global scalar and global vector of length 11, which
can be accessed by various "output commands"_Howto_output.html. The
scalar is the magnitude of the bias potential (energy units) applied on
the current timestep. The vector stores the following quantities:
1 = boost factor on this step (unitless)
2 = max strain Eij of any bond on this step (unitless)
3 = ID of first atom in the max-strain bond
4 = ID of second atom in the max-strain bond
5 = average # of bonds/atom on this step :ul
6 = fraction of timesteps with bias = 0.0 during this run
7 = max drift distance of any atom during this run (distance units)
8 = max bond length during this run (distance units) :ul
9 = cummulative hyper time since fix was defined (time units)
10 = cummulative count of event timesteps since fix was defined
11 = cummulative count of atoms in events since fix was defined :ul
The first 5 quantities are for the current timestep. Quantities 6-8
are for the current hyper run. Quantities 9-11 are cummulative across
multiple runs (since the fix was defined in the input script).
For value 7, drift is the distance an atom moves between timesteps
when the bond list is reset, i.e. between events. Atoms involved in
an event will typically move the greatest distance since others are
typically oscillating around their lattice site.
For value 10, events are checked for by the "hyper"_hyper.html command
once every {Nevent} timesteps. This value is the count of those
timesteps on which one (or more) events was detected. It is NOT the
number of distinct events, since more than one event may occur in the
same {Nevent} time window.
For value 11, each time the "hyper"_hyper.html command checks for an
event, it invokes a compute to flag zero or more atoms as
participating in one or more events. E.g. atoms that have displaced
more than some distance from the previous quench state. Value 11 is
the cummulative count of the number of atoms participating in any of
the events that were found.
The scalar and vector values calculated by this fix are all
"intensive".
No parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command. This fix is not invoked during "energy
minimization"_minimize.html.
[Restrictions:]
This command can only be used if LAMMPS was built with the REPLICA
package. See the "Build package"_Build_package.html doc page for more
info.
[Related commands:]
"hyper"_hyper.html, "fix hyper/local"_fix_hyper_local.html
[Default:] None
:line
:link(Voter2013ghd)
[(Voter2013)] S. Y. Kim, D. Perez, A. F. Voter, J Chem Phys, 139,
144110 (2013).
:link(Mironghd)
[(Miron)] R. A. Miron and K. A. Fichthorn, J Chem Phys, 119, 6210 (2003).

404
doc/src/fix_hyper_local.txt Normal file
View File

@ -0,0 +1,404 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
fix hyper/local command :h3
[Syntax:]
fix ID group-ID hyper/local cutbond qfactor Vmax Tequil Dcut alpha Btarget :pre
ID, group-ID are documented in "fix"_fix.html command :ulb,l
hyper/local = style name of this fix command :l
cutbond = max distance at which a pair of atoms is considered bonded (distance units) :l
qfactor = max strain at which bias potential goes to 0.0 (unitless) :l
Vmax = estimated height of bias potential (energy units) :l
Tequil = equilibration temperature (temperature units) :l
Dcut = minimum distance between boosted bonds (distance units) :l
alpha = boostostat relaxation time (time units) :l
Btarget = desired time boost factor (unitless) :l
zero or more keyword/value pairs may be appended :l
keyword = {lost} or {check/bias} or {check/coeff}
{lostbond} value = error/warn/ignore
{check/bias} values = Nevery error/warn/ignore
{check/coeff} values = Nevery error/warn/ignore :pre
:ule
[Examples:]
fix 1 all hyper/local 1.0 0.3 0.8 300.0 :pre
[Description:]
This fix is meant to be used with the "hyper"_hyper.html command to
perform a bond-boost local hyperdynamics (LHD) simulation. The role
of this fix is to a select multiple pairs of atoms in the system at
each timestep to add a local bias potential to, which will alter the
dynamics of the system in a manner that effectively accelerates time.
This is in contrast to the "fix hyper/global"_fix_hyper_global.html
command, which can be user to perform a global hyperdynamics (GHD)
simulation, by adding a global bias potential to a single pair of
atoms at each timestep. GHD can time accelerate a small simulation
with up to a few 100 atoms. For larger systems, LHD is needed to
achieve good time acceleration.
For a system that undergoes rare transition events, where one or more
atoms move over an energy barrier to a new potential energy basin, the
effect of the bias potential is to induce more rapid transitions.
This can lead to a dramatic speed-up in the rate at which events
occurs, without altering their relative frequencies, thus leading to
an overall increase in the elapsed real time of the simulation as
compared to running for the same number of timesteps with normal MD.
See the "hyper"_hyper.html doc page for a more general discussion of
hyperdynamics and citations that explain both GHD and LHD.
The equations and logic used by this fix and described here to perform
LHD follow the description given in "(Voter2013)"_#Voter2013lhd. The
bond-boost form of a bias potential for HD is due to Miron and
Fichthorn as described in "(Miron)"_#Mironlhd.
To understand this description, you should first read the description
of the GHD algorithm on the "fix hyper/global"_fix_hyper_global.html
doc page. This description of LHD builds on the GHD description.
The definition of bonds, Eij, and Emax are the same for GHD and LHD.
The formulas for Vij(max) and Fij(max) are also the same except for a
pre-factor Cij, explained below.
The bias energy Vij applied to a bond IJ with maximum strain is
Vij(max) = Cij * Vmax * (1 - (Eij/q)^2) for abs(Eij) < qfactor
= 0 otherwise :pre
The derivative of Vij(max) with respect to the position of each atom
in the IJ bond gives a bias force Fij(max) acting on the bond as
Fij(max) = - dVij(max)/dEij = 2 Cij Vmax Eij / qfactor^2 for abs(Eij) < qfactor
= 0 otherwise :pre
which can be decomposed into an equal and opposite force acting on
only the two I,J atoms in the IJ bond.
The key difference is that in GHD a bias energy and force is added (on
a particular timestep) to only one bond (pair of atoms) in the system,
which is the bond with maximum strain Emax.
In LHD, a bias energy and force can be added to multiple bonds
separated by the specified {Dcut} distance or more. A bond IJ is
biased if it is the maximum strain bond within its local
"neighborhood", which is defined as the bond IJ plus any neighbor
bonds within a distance {Dcut} from IJ. The "distance" between bond
IJ and bond KL is the minimum distance between any of the IK, IL, JK,
JL pairs of atoms.
For a large system, multiple bonds will typically meet this
requirement, and thus a bias potential Vij(max) will be applied to
many bonds on the same timestep.
In LHD, all bonds store a Cij prefactor which appears in the Vij(max)
and Fij(max) equations above. Note that the Cij factor scales the
strength of the bias energy and forces whenever bond IJ is the maximum
strain bond in its neighborhood.
Cij is initialized to 1.0 when a bond between the I,J atoms is first
defined. The specified {Btarget} factor is then used to adjust the
Cij prefactors for each bond every timestep in the following manner.
An instantaneous boost factor Bij is computed each timestep
for each bond, as
Bij = exp(beta * Vkl(max)) :pre
where Vkl(max) is the bias energy of the maxstrain bond KL within bond
IJ's neighborhood, beta = 1/kTequil, and {Tequil} is the temperature
of the system and an argument to this fix.
NOTE: To run LHD, the input script must also use the "fix
langevin"_fix_langevin.html command to thermostat the atoms at the
same {Tequil} as specified by this fix, so that the system is running
constant-temperature (NVT) dynamics. LAMMPS does not check that this
is done.
Note that if IJ = KL, then bond IJ is a biased bond on that timestep,
otherwise it is not. But regardless, the boost factor Bij can be
thought of an estimate of time boost currently being applied within a
local region centered on bond IJ. For LHD, we want this to be the
specified {Btarget} value everywhere in the simulation domain.
To accomplish this, if Bij < Btarget, the Cij prefactor for bond IJ is
incremented on the current timestep by an amount proportional to the
inverse of the specified {alpha} and the difference (Bij - Btarget).
Conversely if Bij > Btarget, Cij is decremented by the same amount.
This procedure is termed "boostostatting" in
"(Voter2013)"_#Voter2013lhd. It drives all of the individual Cij to
values such that when Vij{max} is applied as a bias to bond IJ, the
resulting boost factor Bij will be close to {Btarget} on average.
Thus the LHD time acceleration factor for the overall system is
effectively {Btarget}.
Note that in LHD, the boost factor {Btarget} is specified by the user.
This is in contrast to global hyperdynamics (GHD) where the boost
factor varies each timestep and is computed as a function of {Vmax},
Emax, and {Tequil}; see the "fix hyper/global"_fix_hyper_global.html
doc page for details.
:line
Here is additional information on the input parameters for LHD.
Note that the {cutbond}, {qfactor}, and {Tequil} arguments have the
same meaning as for GHD. The {Vmax} argument is slightly different.
The {Dcut}, {alpha}, and {Btarget} parameters are unique to LHD.
The {cutbond} argument is the cutoff distance for defining bonds
between pairs of nearby atoms. A pair of I,J atoms in their
equilibrium, minimum-energy configuration, which are separated by a
distance Rij < {cutbond}, are flagged as a bonded pair. Setting
{cubond} to be ~25% larger than the nearest-neighbor distance in a
crystalline lattice is a typical choice for solids, so that bonds
exist only between nearest neighbor pairs.
The {qfactor} argument is the limiting strain at which the bias
potential goes to 0.0. It is dimensionless, so a value of 0.3 means a
bond distance can be up to 30% larger or 30% smaller than the
equilibrium (quenched) R0ij distance and the two atoms in the bond
could still experience a non-zero bias force.
If {qfactor} is set too large, then transitions from one energy basin
to another are affected because the bias potential is non-zero at the
transition state (e.g. saddle point). If {qfactor} is set too small
than little boost can be achieved because the Eij strain of some bond in
the system will (nearly) always exceed {qfactor}. A value of 0.3 for
{qfactor} is typically a reasonable value.
The {Vmax} argument is a fixed prefactor on the bias potential. There
is a also a dynamic prefactor Cij, driven by the choice of {Btarget}
as discussed above. The product of these should be a value less than
the smallest barrier height for an event to occur. Otherwise the
applied bias potential may be large enough (when added to the
interatomic potential) to produce a local energy basin with a maxima
in the center. This can produce artificial energy minima in the same
basin that trap an atom. Or if Cij*{Vmax} is even larger, it may
induce an atom(s) to rapidly transition to another energy basin. Both
cases are "bad dynamics" which violate the assumptions of LHD that
guarantee an accelerated time-accurate trajectory of the system.
NOTE: It may seem that {Vmax} can be set to any value, and Cij will
compensate to reduce the overall prefactor if necessary. However the
Cij are initialized to 1.0 and the boostostatting procedure typically
operates slowly enough that there can be a time period of bad dynamics
if {Vmax} is set too large. A better strategy is to set {Vmax} to the
smallest barrier height for an event (the same as for GHD), so that
the Cij remain near unity.
The {Tequil} argument is the temperature at which the system is
simulated; see the comment above about the "fix
langevin"_fix_langevin.html thermostatting. It is also part of the
beta term in the exponential factor that determines how much boost is
achieved as a function of the bias potential. See the discussion of
the {Btarget} argument below.
As discussed above, the {Dcut} argument is the distance required
between two locally maxstrain bonds for them to both be selected as
biased bonds on the same timestep. Computationally, the larger {Dcut}
is, the more work (computation and communication) must be done each
timestep within the LHD algorithm. And the fewer bonds can be
simultaneously biased, which may mean the specified {Btarget} time
acceleration cannot be achieved.
Physically {Dcut} should be a long enough distance that biasing two
pairs of atoms that close together will not influence the dynamics of
each pair. E.g. something like 2x the cutoff of the interatomic
potential. In practice a {Dcut} value of ~10 Angstroms seems to work
well for many solid-state systems.
NOTE: You must also insure that ghost atom communication is performed
for a distance of at least {Dcut} + {cutevent} where {cutevent} = the
distance one or more atoms move (between quenched states) to be
considered an "event". It is an argument to the "compute
event/displace" command used to detect events. By default the ghost
communication distance is set by the pair_style cutoff, which will
typically be < {Dcut}. The "comm_modify cutoff"_comm_modify.html
command can be used to set the ghost cutoff explicitly, e.g.
comm_modify cutoff 12.0 :pre
This fix does not know the {cutevent} parameter, but uses half the
bond length as an estimate to warn if the ghost cutoff is not long
enough.
As described above the {alpha} argument is a pre-factor in the
boostostat update equation for each bond's Cij prefactor. {Alpha} is
specified in time units, similar to other thermostat or barostat
damping parameters. It is roughly the physical time it will take the
boostostat to adjust a Cij value from a too high (or too low) value to
a correct one. An {alpha} setting of a few ps is typically good for
solid-state systems. Note that the {alpha} argument here is the
inverse of the alpha parameter discussed in
"(Voter2013)"_#Voter2013lhd.
The {Btarget} argument is the desired time boost factor (a value > 1)
that all the atoms in the system will experience. The elapsed time
t_hyper for an LHD simulation running for {N} timesteps is simply
t_hyper = Btarget * N*dt :pre
where dt is the timestep size defined by the "timestep"_timestep.html
command. The effective time acceleration due to LHD is thus t_hyper /
N*dt = Btarget, where N*dt is elapsed time for a normal MD run
of N timesteps.
You cannot choose an arbitrarily large setting for {Btarget}. The
maximum value you should choose is
Btarget = exp(beta * Vsmall) :pre
where Vsmall is the smallest event barrier height in your system, beta
= 1/kTequil, and {Tequil} is the specified temperature of the system
(both by this fix and the Langevin thermostat).
Note that if {Btarget} is set smaller than this, the LHD simulation
will run correctly. There will just be fewer events because the hyper
time (t_hyper equation above) will be shorter.
NOTE: If you have no physical intuition as to the smallest barrier
height in your system, a reasonable strategy to determine the largest
{Btarget} you can use for an LHD model, is to run a sequence of
simulations with smaller and smaller {Btarget} values, until the event
rate does not change.
:line
[Restart, fix_modify, output, run start/stop, minimize info:]
No information about this fix is written to "binary restart
files"_restart.html.
The "fix_modify"_fix_modify.html {energy} option is supported by this
fix to add the energy of the bias potential to the the system's
potential energy as part of "thermodynamic output"_thermo_style.html.
This fix computes a global scalar and global vector of length 23,
which can be accessed by various "output
commands"_Howto_output.html. The scalar is the magnitude of
the bias potential (energy units) applied on the current timestep,
summed over all biased bonds. The vector stores the following
quantities:
1 = # of biased bonds on this step
2 = max strain Eij of any bond on this step (unitless)
3 = average bias potential for all biased bonds on this step (energy units)
4 = average # of bonds/atom on this step
5 = average neighbor bonds/bond on this step within {Dcut} :ul
6 = fraction of steps and bonds with no bias during this run
7 = max drift distance of any atom during this run (distance units)
8 = max bond length during this run (distance units)
9 = average # of biased bonds/step during this run
10 = average bias potential for all biased bonds during this run (energy units)
11 = max bias potential for any biased bond during this run (energy units)
12 = min bias potential for any biased bond during this run (energy units)
13 = max distance from my sub-box of any ghost atom with maxstrain < qfactor during this run (distance units)
14 = max distance outside my box of any ghost atom with any maxstrain during this run (distance units)
15 = count of ghost neighbor atoms not found on reneighbor steps during this run
16 = count of lost bond partners during this run
17 = average bias coeff for lost bond partners during this run
18 = count of bias overlaps found during this run
19 = count of non-matching bias coefficients found during this run :ul
20 = cummulative hyper time since fix created (time units)
21 = cummulative count of event timesteps since fix created
22 = cummulative count of atoms in events since fix created
23 = cummulative # of new bonds since fix created :ul
The first quantities (1-5) are for the current timestep. Quantities
6-19 are for the current hyper run. They are reset each time a new
hyper run is performed. Quantities 20-23 are cummulative across
multiple runs (since the fix was defined in the input script).
For value 6, the numerator is a count of all biased bonds on every
timestep whose bias energy = 0.0 due to Eij >= {qfactor}. The
denominator is the count of all biased bonds on all timesteps.
For value 7, drift is the distance an atom moves between timesteps
when the bond list is reset, i.e. between events. Atoms involved in
an event will typically move the greatest distance since others are
typically oscillating around their lattice site.
For values 13 and 14, the maxstrain of a ghost atom is the maxstrain
of any bond it is part of, and it is checked for ghost atoms within
the bond neighbor cutoff.
Values 15-19 are mostly useful for debugging and diagnositc purposes.
For values 15-17, it is possible that a ghost atom owned by another
processor will move far enough (e.g. as part of an event-in-progress)
that it will no longer be within the communication cutoff distance for
acquiring ghost atoms. Likewise it may be a ghost atom bond partner
that cannot be found because it has moved too far. These values count
those occurrences. Because they typically involve atoms that are part
of events, they do not usually indicate bad dynamics. Value 16 is the
average bias coefficient for bonds where a partner atom was lost.
For value 18, no two bonds should be biased if they are within a
{Dcut} distance of each other. This value should be zero, indicating
that no pair of bonds "overlap", meaning they are closer than {Dcut}
from each other.
For value 19, the same bias coefficient is stored by both atoms in an
IJ bond. This value should be zero, indicating that for all bonds,
each atom in the bond stores the a bias coefficient with the same
value.
Value 20 is simply the specified {boost} factor times the number of
timestep times the timestep size.
For value 21, events are checked for by the "hyper"_hyper.html command
once every {Nevent} timesteps. This value is the count of those
timesteps on which one (or more) events was detected. It is NOT the
number of distinct events, since more than one event may occur in the
same {Nevent} time window.
For value 22, each time the "hyper"_hyper.html command checks for an
event, it invokes a compute to flag zero or more atoms as
participating in one or more events. E.g. atoms that have displaced
more than some distance from the previous quench state. Value 22 is
the cummulative count of the number of atoms participating in any of
the events that were found.
Value 23 tallies the number of new bonds created by the bond reset
operation. Bonds between a specific I,J pair of atoms may persist for
the entire hyperdynamics simulation if neither I or J are involved in
an event.
The scalar and vector values calculated by this fix are all
"intensive".
No parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command. This fix is not invoked during "energy
minimization"_minimize.html.
[Restrictions:]
This fix is part of the REPLICA package. It is only enabled if LAMMPS
was built with that package. See the "Build package"_Build_package.html
doc page for more info.
[Related commands:]
"hyper"_hyper.html, "fix hyper/global"_fix_hyper_global.html
[Default:] None
:line
:link(Voter2013lhd)
[(Voter2013)] S. Y. Kim, D. Perez, A. F. Voter, J Chem Phys, 139,
144110 (2013).
:link(Mironlhd)
[(Miron)] R. A. Miron and K. A. Fichthorn, J Chem Phys, 119, 6210 (2003).

233
doc/src/fix_meso_move.txt Normal file
View File

@ -0,0 +1,233 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
fix meso/move command :h3
[Syntax:]
fix ID group-ID meso/move style args keyword values ... :pre
ID, group-ID are documented in "fix"_fix.html command :ulb,l
meso/move = style name of this fix command :l
style = {linear} or {wiggle} or {rotate} or {variable} :l
{linear} args = Vx Vy Vz
Vx,Vy,Vz = components of velocity vector (velocity units), any component can be specified as NULL
{wiggle} args = Ax Ay Az period
Ax,Ay,Az = components of amplitude vector (distance units), any component can be specified as NULL
period = period of oscillation (time units)
{rotate} args = Px Py Pz Rx Ry Rz period
Px,Py,Pz = origin point of axis of rotation (distance units)
Rx,Ry,Rz = axis of rotation vector
period = period of rotation (time units)
{variable} args = v_dx v_dy v_dz v_vx v_vy v_vz
v_dx,v_dy,v_dz = 3 variable names that calculate x,y,z displacement as function of time, any component can be specified as NULL
v_vx,v_vy,v_vz = 3 variable names that calculate x,y,z velocity as function of time, any component can be specified as NULL :pre
zero or more keyword/value pairs may be appended :l
keyword = {units} :l
{units} value = {box} or {lattice} :pre
:ule
[Examples:]
fix 1 boundary meso/move wiggle 3.0 0.0 0.0 1.0 units box
fix 2 boundary meso/move rotate 0.0 0.0 0.0 0.0 0.0 1.0 5.0
fix 2 boundary meso/move variable v_myx v_myy NULL v_VX v_VY NULL :pre
[Description:]
Perform updates of position, velocity, internal energy and local
density for mesoscopic particles in the group each timestep using the
specified settings or formulas, without regard to forces on the
particles. This can be useful for boundary, solid bodies or other
particles, whose movement can influence nearby particles.
The operation of this fix is exactly like that described by the
"fix move"_fix_move.html command, except that particles' density,
internal energy and extrapolated velocity are also updated.
NOTE: The particles affected by this fix should not be time integrated
by other fixes (e.g. "fix meso"_fix_meso.html, "fix
meso/stationary"_fix_meso_stationary.html), since that will change their
positions and velocities twice.
NOTE: As particles move due to this fix, they will pass thru periodic
boundaries and be remapped to the other side of the simulation box,
just as they would during normal time integration (e.g. via the "fix
meso"_fix_meso.html command). It is up to you to decide whether periodic
boundaries are appropriate with the kind of particle motion you are
prescribing with this fix.
NOTE: As dicsussed below, particles are moved relative to their initial
position at the time the fix is specified. These initial coordinates
are stored by the fix in "unwrapped" form, by using the image flags
associated with each particle. See the "dump custom"_dump.html command
for a discussion of "unwrapped" coordinates. See the Atoms section of
the "read_data"_read_data.html command for a discussion of image flags
and how they are set for each particle. You can reset the image flags
(e.g. to 0) before invoking this fix by using the "set image"_set.html
command.
:line
The {linear} style moves particles at a constant velocity, so that their
position {X} = (x,y,z) as a function of time is given in vector
notation as
X(t) = X0 + V * delta :pre
where {X0} = (x0,y0,z0) is their position at the time the fix is
specified, {V} is the specified velocity vector with components
(Vx,Vy,Vz), and {delta} is the time elapsed since the fix was
specified. This style also sets the velocity of each particle to V =
(Vx,Vy,Vz). If any of the velocity components is specified as NULL,
then the position and velocity of that component is time integrated
the same as the "fix meso"_fix_meso.html command would perform, using
the corresponding force component on the particle.
Note that the {linear} style is identical to using the {variable}
style with an "equal-style variable"_variable.html that uses the
vdisplace() function. E.g.
variable V equal 10.0
variable x equal vdisplace(0.0,$V)
fix 1 boundary move variable v_x NULL NULL v_V NULL NULL :pre
The {wiggle} style moves particles in an oscillatory fashion, so that
their position {X} = (x,y,z) as a function of time is given in vector
notation as
X(t) = X0 + A sin(omega*delta) :pre
where {X0} = (x0,y0,z0) is their position at the time the fix is
specified, {A} is the specified amplitude vector with components
(Ax,Ay,Az), {omega} is 2 PI / {period}, and {delta} is the time
elapsed since the fix was specified. This style also sets the
velocity of each particle to the time derivative of this expression.
If any of the amplitude components is specified as NULL, then the
position and velocity of that component is time integrated the same as
the "fix meso"_fix_meso.html command would perform, using the
corresponding force component on the particle.
Note that the {wiggle} style is identical to using the {variable}
style with "equal-style variables"_variable.html that use the
swiggle() and cwiggle() functions. E.g.
variable A equal 10.0
variable T equal 5.0
variable omega equal 2.0*PI/$T
variable x equal swiggle(0.0,$A,$T)
variable v equal v_omega*($A-cwiggle(0.0,$A,$T))
fix 1 boundary move variable v_x NULL NULL v_v NULL NULL :pre
The {rotate} style rotates particles around a rotation axis {R} =
(Rx,Ry,Rz) that goes thru a point {P} = (Px,Py,Pz). The {period} of
the rotation is also specified. The direction of rotation for the
particles around the rotation axis is consistent with the right-hand
rule: if your right-hand thumb points along {R}, then your fingers wrap
around the axis in the direction of rotation.
This style also sets the velocity of each particle to (omega cross
Rperp) where omega is its angular velocity around the rotation axis and
Rperp is a perpendicular vector from the rotation axis to the particle.
The {variable} style allows the position and velocity components of
each particle to be set by formulas specified via the
"variable"_variable.html command. Each of the 6 variables is
specified as an argument to the fix as v_name, where name is the
variable name that is defined elsewhere in the input script.
Each variable must be of either the {equal} or {atom} style.
{Equal}-style variables compute a single numeric quantity, that can be
a function of the timestep as well as of other simulation values.
{Atom}-style variables compute a numeric quantity for each particle, that
can be a function per-atom quantities, such as the particle's position, as
well as of the timestep and other simulation values. Note that this
fix stores the original coordinates of each particle (see note below) so
that per-atom quantity can be used in an atom-style variable formula.
See the "variable"_variable.html command for details.
The first 3 variables (v_dx,v_dy,v_dz) specified for the {variable}
style are used to calculate a displacement from the particle's original
position at the time the fix was specified. The second 3 variables
(v_vx,v_vy,v_vz) specified are used to compute a velocity for each
particle.
Any of the 6 variables can be specified as NULL. If both the
displacement and velocity variables for a particular x,y,z component
are specified as NULL, then the position and velocity of that
component is time integrated the same as the "fix meso"_fix_meso.html
command would perform, using the corresponding force component on the
particle. If only the velocity variable for a component is specified as
NULL, then the displacement variable will be used to set the position
of the particle, and its velocity component will not be changed. If only
the displacement variable for a component is specified as NULL, then
the velocity variable will be used to set the velocity of the particle,
and the position of the particle will be time integrated using that
velocity.
The {units} keyword determines the meaning of the distance units used
to define the {linear} velocity and {wiggle} amplitude and {rotate}
origin. This setting is ignored for the {variable} style. A {box}
value selects standard units as defined by the "units"_units.html
command, e.g. velocity in Angstroms/fmsec and amplitude and position
in Angstroms for units = real. A {lattice} value means the velocity
units are in lattice spacings per time and the amplitude and position
are in lattice spacings. The "lattice"_lattice.html command must have
been previously used to define the lattice spacing. Each of these 3
quantities may be dependent on the x,y,z dimension, since the lattice
spacings can be different in x,y,z.
:line
[Restart, fix_modify, output, run start/stop, minimize info:]
This fix writes the original coordinates of moving particles to "binary
restart files"_restart.html, as well as the initial timestep, so that
the motion can be continuous in a restarted simulation. See the
"read_restart"_read_restart.html command for info on how to re-specify
a fix in an input script that reads a restart file, so that the
operation of the fix continues in an uninterrupted fashion.
NOTE: Because the move positions are a function of the current
timestep and the initial timestep, you cannot reset the timestep to a
different value after reading a restart file, if you expect a fix move
command to work in an uninterrupted fashion.
None of the "fix_modify"_fix_modify.html options are relevant to this
fix.
This fix produces a per-atom array which can be accessed by various
"output commands"_Howto_output.html. The number of columns for each
atom is 3, and the columns store the original unwrapped x,y,z coords
of each particle. The per-atom values can be accessed on any timestep.
No parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command.
This fix is not invoked during "energy minimization"_minimize.html.
[Restrictions:]
This fix is part of the USER-SDPD package. It is only enabled if
LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info.
This fix requires that atoms store density and internal energy as
defined by the "atom_style meso"_atom_style.html command.
All particles in the group must be mesoscopic SPH/SDPD particles.
[Related commands:]
"fix move"_fix_move.html, "fix meso"_fix_meso.html,
"displace_atoms"_displace_atoms.html
[Default:]
The option default is units = lattice.

View File

@ -6,7 +6,7 @@
:line
fix msst command :h3
fix msst command :h3
[Syntax:]

View File

@ -35,7 +35,7 @@ keyword = {parallel} or {perp} or {end} :l
fix 1 active neb 10.0
fix 2 all neb 1.0 perp 1.0 end last
fix 2 all neb 1.0 perp 1.0 end first 1.0 end last 1.0
fix 1 all neb 1.0 nudge ideal end last/efirst 1 :pre
fix 1 all neb 1.0 parallel ideal end last/efirst 1 :pre
[Description:]
@ -212,7 +212,7 @@ page for more info.
[Default:]
The option defaults are nudge = neigh, perp = 0.0, ends is not
The option defaults are parallel = neigh, perp = 0.0, ends is not
specified (no inter-replica force on the end replicas).
:line

56
doc/src/fix_nve_awpmd.txt Normal file
View File

@ -0,0 +1,56 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
fix nve/awpmd command :h3
[Syntax:]
fix ID group-ID nve/awpmd :pre
ID, group-ID are documented in "fix"_fix.html command
nve/awpmd = style name of this fix command :ul
[Examples:]
fix 1 all nve/awpmd :pre
[Description:]
Perform constant NVE integration to update position and velocity for
nuclei and electrons in the group for the "Antisymmetrized Wave Packet
Molecular Dynamics"_pair_awpmd.html model. V is volume; E is energy.
This creates a system trajectory consistent with the microcanonical
ensemble.
The operation of this fix is exactly like that described by the "fix
nve"_fix_nve.html command, except that the width and width-velocity of
the electron wavefunctions are also updated.
:line
[Restart, fix_modify, output, run start/stop, minimize info:]
No information about this fix is written to "binary restart
files"_restart.html. None of the "fix_modify"_fix_modify.html options
are relevant to this fix. No global or per-atom quantities are stored
by this fix for access by various "output commands"_Howto_output.html.
No parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command. This fix is not invoked during "energy
minimization"_minimize.html.
[Restrictions:]
This fix is part of the USER-AWPMD package. It is only enabled if
LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info.
[Related commands:]
"fix nve"_fix_nve.html
[Default:] none

View File

@ -36,8 +36,8 @@ The command is equivalent to the "fix nve"_fix_nve.html.
The particles are always considered to have a finite size.
An example input file can be found in /examples/USER/cgdna/examples/duplex1/.
A technical report with more information on this integrator can be found
"here"_PDF/USER-CGDNA-overview.pdf.
Further details of the implementation and stability of the integrator are contained in "(Henrich)"_#Henrich3.
The preprint version of the article can be found "here"_PDF/USER-CGDNA.pdf.
:line
@ -59,3 +59,5 @@ See the "Build package"_Build_package.html doc page for more info.
[(Davidchack)] R.L Davidchack, T.E. Ouldridge, and M.V. Tretyakov. J. Chem. Phys. 142, 144114 (2015).
:link(Miller1)
[(Miller)] T. F. Miller III, M. Eleftheriou, P. Pattnaik, A. Ndirango, G. J. Martyna, J. Chem. Phys., 116, 8649-8659 (2002).
:link(Henrich3)
[(Henrich)] O. Henrich, Y. A. Gutierrez-Fosado, T. Curk, T. E. Ouldridge, Eur. Phys. J. E 41, 57 (2018).

View File

@ -114,8 +114,8 @@ The scale factor after the {angmom} keyword gives the ratio of the rotational to
the translational friction coefficient.
An example input file can be found in /examples/USER/cgdna/examples/duplex2/.
A technical report with more information on this integrator can be found
"here"_PDF/USER-CGDNA-overview.pdf.
Further details of the implementation and stability of the integrators are contained in "(Henrich)"_#Henrich4.
The preprint version of the article can be found "here"_PDF/USER-CGDNA.pdf.
:line
@ -139,3 +139,5 @@ See the "Build package"_Build_package.html doc page for more info.
[(Miller)] T. F. Miller III, M. Eleftheriou, P. Pattnaik, A. Ndirango, G. J. Martyna, J. Chem. Phys., 116, 8649-8659 (2002).
:link(Dunweg3)
[(Dunweg)] B. Dunweg, W. Paul, Int. J. Mod. Phys. C, 2, 817-27 (1991).
:link(Henrich4)
[(Henrich)] O. Henrich, Y. A. Gutierrez-Fosado, T. Curk, T. E. Ouldridge, Eur. Phys. J. E 41, 57 (2018).

View File

@ -8,6 +8,7 @@
fix nve/sphere command :h3
fix nve/sphere/omp command :h3
fix nve/sphere/kk command :h3
[Syntax:]

View File

@ -63,6 +63,11 @@ implemented in LAMMPS, they are coupled to a Nose/Hoover chain
thermostat in a velocity Verlet formulation, closely following the
implementation used for the "fix nvt"_fix_nh.html command.
NOTE: A recent (2017) book by "(Daivis and Todd)"_#Daivis-sllod
discusses use of the SLLOD method and non-equilibrium MD (NEMD)
thermostatting generally, for both simple and complex fluids,
e.g. molecular systems. The latter can be tricky to do correctly.
Additional parameters affecting the thermostat are specified by
keywords and values documented with the "fix nvt"_fix_nh.html
command. See, for example, discussion of the {temp} and {drag}
@ -177,3 +182,7 @@ Same as "fix nvt"_fix_nh.html, except tchain = 1.
:link(Daivis)
[(Daivis and Todd)] Daivis and Todd, J Chem Phys, 124, 194103 (2006).
:link(Daivis-sllod)
[(Daivis and Todd)] Daivis and Todd, Nonequilibrium Molecular Dyanmics (book),
Cambridge University Press, https://doi.org/10.1017/9781139017848, (2017).

117
doc/src/fix_plumed.txt Normal file
View File

@ -0,0 +1,117 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
fix plumed command :h3
[Syntax:]
fix ID group-ID plumed keyword value ... :pre
ID, group-ID are documented in "fix"_fix.html command :ulb,l
plumed = style name of this fix command :l
keyword = {plumedfile} or {outfile} :l
{plumedfile} arg = name of PLUMED input file to use (default: NULL)
{outfile} arg = name of file on which to write the PLUMED log (default: NULL) :pre
:ule
[Examples:]
fix pl all plumed all plumed plumedfile plumed.dat outfile p.log
[Description:]
This fix instructs LAMMPS to call the "PLUMED"_plumedhome library, which
allows one to perform various forms of trajectory analysis on the fly
and to also use methods such as umbrella sampling and metadynamics to
enhance the sampling of phase space.
The documentation included here only describes the fix plumed command
itself. This command is LAMMPS specific, whereas most of the
functionality implemented in PLUMED, however, will work with a range of
MD codes, and when PLUMED is used as a stand alone code for analysis.
The full "documentation for PLUMED"_plumeddocs is available online and
included in the PLUMED source code. The PLUMED library development is
hosted at
"https://github.com/plumed/plumed2"_https://github.com/plumed/plumed2
A detailed discussion of the code can be found in "(PLUMED)"_#PLUMED.
There is an example input for using this package with LAMMPS in the
examples/USER/plumed directory.
:line
The command to make LAMMPS call PLUMED during a run requires two keyword
value pairs pointing to the PLUMED input file and an output file for the
PLUMED log. The user must specify these arguments every time PLUMED is
to be used. Furthermore, the fix plumed command should appear in the
LAMMPS input file [after] relevant input paramters (e.g. the timestep)
have been set.
The {group-ID} entry is ignored. LAMMPS will always pass all the atoms
to PLUMED and there can only be one instance of the plumed fix at a
time. The plumed fix communicates the minimum amount of information
required and the PLUMED supports multiple, completely independent
collective variables, multiple independent biases and multiple
independent forms of analysis. There is thus really no restriction in
functionality by only allowing only one plumed fix in the LAMMPS input.
The {plumedfile} keyword allows the user to specify the name of the
PLUMED input file. Instructions as to what should be included in a
plumed input file can be found in the "documentation for
PLUMED"_plumeddocs
The {outfile} keyword allows the user to specify the name of a file on
which to output the PLUMED log. This log file normally just parrots the
information that is contained in the input file. The names of the files
on which the results from the various analyses that have been performed
using PLUMED will be specified by the user in the PLUMED input file.
[Restart, fix_modify, output, run start/stop, minimize info:]
When performing a restart of a calculation that involves PLUMED you must
include a RESTART command in the PLUMED input file as detailed in the
"PLUMED documentation"_plumeddocs. When the restart command is found in
the PLUMED input PLUMED will append to the files that were generated in
the run that was performed previously. No part of the PLUMED restart
data is included in the LAMMPS restart files. Furthermore, any history
dependent bias potentials that were accumulated in previous calculations
will be read in when the RESTART command is included in the PLUMED
input.
The "fix_modify"_fix_modify.html {energy} option is not supported by
this fix.
Nothing is computed by this fix that can be accessed by any of the
"output commands"_Howto_output.html within LAMMPS. All the quantities
of interest can be output by commands that are native to PLUMED,
however.
[Restrictions:]
This fix is part of the USER-PLUMED package. It is only enabled if
LAMMPS was built with that package. See the "Build
package"_Build_package.html doc page for more info.
There can only be one plumed fix active at a time.
[Related commands:]
"fix smd"_fix_smd.html
"fix colvars"_fix_colvars.html
[Default:]
The default options are plumedfile = NULL and outfile = NULL
:line
:link(PLUMED)
[(PLUMED)] G.A. Tribello, M. Bonomi, D. Branduardi, C. Camilloni and G. Bussi, Comp. Phys. Comm 185, 604 (2014)
:link(plumeddocs,http://www.plumed.org/documentation)
:link(plumedhome,http://www.plumed.org/)

View File

@ -6,7 +6,7 @@
:line
fix poems :h3
fix poems command :h3
Syntax:

View File

@ -7,6 +7,7 @@
:line
fix property/atom command :h3
fix property/atom/kk command :h3
[Syntax:]
@ -201,6 +202,7 @@ added classes.
:line
:link(isotopes)
Example for using per-atom masses with TIP4P water to
study isotope effects. When setting up simulations with the "TIP4P
pair styles"_Howto_tip4p.html for water, you have to provide exactly
@ -238,6 +240,28 @@ set group hwat mass 2.0141018 :pre
:line
Styles with a {gpu}, {intel}, {kk}, {omp}, or {opt} suffix are
functionally the same as the corresponding style without the suffix.
They have been optimized to run faster, depending on your available
hardware, as discussed on the "Speed packages"_Speed_packages.html doc
page. The accelerated styles take the same arguments and should
produce the same results, except for round-off and precision issues.
These accelerated styles are part of the GPU, USER-INTEL, KOKKOS,
USER-OMP and OPT packages, respectively. They are only enabled if
LAMMPS was built with those packages. See the "Build
package"_Build_package.html doc page for more info.
You can specify the accelerated styles explicitly in your input script
by including their suffix, or you can use the "-suffix command-line
switch"_Run_options.html when you invoke LAMMPS, or you can use the
"suffix"_suffix.html command in your input script.
See the "Speed packages"_Speed_packages.html doc page for more
instructions on how to use the accelerated styles effectively.
:line
[Restart, fix_modify, output, run start/stop, minimize info:]
This fix writes the per-atom values it stores to "binary restart

349
doc/src/fix_rigid_meso.txt Normal file
View File

@ -0,0 +1,349 @@
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Commands_all.html)
:line
fix rigid/meso command :h3
[Syntax:]
fix ID group-ID rigid/meso bodystyle args keyword values ... :pre
ID, group-ID are documented in "fix"_fix.html command :ulb,l
rigid/meso = style name of this fix command :l
bodystyle = {single} or {molecule} or {group} :l
{single} args = none
{molecule} args = none
{custom} args = {i_propname} or {v_varname}
i_propname = an integer property defined via fix property/atom
v_varname = an atom-style or atomfile-style variable
{group} args = N groupID1 groupID2 ...
N = # of groups
groupID1, groupID2, ... = list of N group IDs :pre
zero or more keyword/value pairs may be appended :l
keyword = {reinit} or {force} or {torque} or {infile} :l
{reinit} = {yes} or {no}
{force} values = M xflag yflag zflag
M = which rigid body from 1-Nbody (see asterisk form below)
xflag,yflag,zflag = off/on if component of center-of-mass force is active
{torque} values = M xflag yflag zflag
M = which rigid body from 1-Nbody (see asterisk form below)
xflag,yflag,zflag = off/on if component of center-of-mass torque is active
{infile} filename
filename = file with per-body values of mass, center-of-mass, moments of inertia :pre
:ule
[Examples:]
fix 1 ellipsoid rigid/meso single
fix 1 rods rigid/meso molecule
fix 1 spheres rigid/meso single force 1 off off on
fix 1 particles rigid/meso molecule force 1*5 off off off force 6*10 off off on
fix 2 spheres rigid/meso group 3 sphere1 sphere2 sphere3 torque * off off off :pre
[Description:]
Treat one or more sets of mesoscopic SPH/SDPD particles as independent
rigid bodies. This means that each timestep the total force and torque
on each rigid body is computed as the sum of the forces and torques on
its constituent particles. The coordinates and velocities of the
particles in each body are then updated so that the body moves and
rotates as a single entity using the methods described in the paper by
"(Miller)"_#Miller. Density and internal energy of the particles will
also be updated. This is implemented by creating internal data structures
for each rigid body and performing time integration on these data
structures. Positions and velocities of the constituent particles are
regenerated from the rigid body data structures in every time step. This
restricts which operations and fixes can be applied to rigid bodies. See
below for a detailed discussion.
The operation of this fix is exactly like that described by the
"fix rigid/nve"_fix_rigid.html command, except that particles' density,
internal energy and extrapolated velocity are also updated.
NOTE: You should not update the particles in rigid bodies via other
time-integration fixes (e.g. "fix meso"_fix_meso.html,
"fix meso/stationary"_fix_meso_stationary.html), or you will have conflicting
updates to positions and velocities resulting in unphysical behavior in most
cases. When performing a hybrid simulation with some atoms in rigid bodies,
and some not, a separate time integration fix like "fix meso"_fix_meso.html
should be used for the non-rigid particles.
NOTE: These fixes are overkill if you simply want to hold a collection
of particles stationary or have them move with a constant velocity. To
hold particles stationary use "fix
meso/stationary"_fix_meso_stationary.html instead. If you would like to
move particles with a constant velocity use "fix
meso/move"_fix_meso_move.html.
IMPORTANT NOTE: The aggregate properties of each rigid body are
calculated at the start of a simulation run and are maintained in
internal data structures. The properties include the position and
velocity of the center-of-mass of the body, its moments of inertia, and
its angular momentum. This is done using the properties of the
constituent particles of the body at that point in time (or see the {infile}
keyword option). Thereafter, changing these properties of individual
particles in the body will have no effect on a rigid body's dynamics, unless
they effect any computation of per-particle forces or torques. If the
keyword {reinit} is set to {yes} (the default), the rigid body data
structures will be recreated at the beginning of each {run} command;
if the keyword {reinit} is set to {no}, the rigid body data structures
will be built only at the very first {run} command and maintained for
as long as the rigid fix is defined. For example, you might think you
could displace the particles in a body or add a large velocity to each particle
in a body to make it move in a desired direction before a 2nd run is
performed, using the "set"_set.html or
"displace_atoms"_displace_atoms.html or "velocity"_velocity.html
commands. But these commands will not affect the internal attributes
of the body unless {reinit} is set to {yes}. With {reinit} set to {no}
(or using the {infile} option, which implies {reinit} {no}) the position
and velocity of individual particles in the body will be reset when time
integration starts again.
:line
Each rigid body must have two or more particles. A particle can belong
to at most one rigid body. Which particles are in which bodies can be
defined via several options.
For bodystyle {single} the entire fix group of particles is treated as
one rigid body.
For bodystyle {molecule}, particles are grouped into rigid bodies by their
respective molecule IDs: each set of particles in the fix group with the
same molecule ID is treated as a different rigid body. Note that particles
with a molecule ID = 0 will be treated as a single rigid body. For a
system with solvent (typically this is particles with molecule ID = 0)
surrounding rigid bodies, this may not be what you want. Thus you
should be careful to use a fix group that only includes particles you
want to be part of rigid bodies.
Bodystyle {custom} is similar to bodystyle {molecule} except that it
is more flexible in using other per-atom properties to define the sets
of particles that form rigid bodies. An integer vector defined by the
"fix property/atom"_fix_property_atom.html command can be used. Or an
"atom-style or atomfile-style variable"_variable.html can be used; the
floating-point value produced by the variable is rounded to an
integer. As with bondstyle {molecule}, each set of particles in the fix
groups with the same integer value is treated as a different rigid
body. Since fix property/atom vectors and atom-style variables
produce values for all particles, you should be careful to use a fix group
that only includes particles you want to be part of rigid bodies.
For bodystyle {group}, each of the listed groups is treated as a
separate rigid body. Only particles that are also in the fix group are
included in each rigid body.
NOTE: To compute the initial center-of-mass position and other
properties of each rigid body, the image flags for each particle in the
body are used to "unwrap" the particle coordinates. Thus you must
insure that these image flags are consistent so that the unwrapping
creates a valid rigid body (one where the particles are close together)
, particularly if the particles in a single rigid body straddle a
periodic boundary. This means the input data file or restart file must
define the image flags for each particle consistently or that you have
used the "set"_set.html command to specify them correctly. If a
dimension is non-periodic then the image flag of each particle must be
0 in that dimension, else an error is generated.
By default, each rigid body is acted on by other particles which induce
an external force and torque on its center of mass, causing it to
translate and rotate. Components of the external center-of-mass force
and torque can be turned off by the {force} and {torque} keywords.
This may be useful if you wish a body to rotate but not translate, or
vice versa, or if you wish it to rotate or translate continuously
unaffected by interactions with other particles. Note that if you
expect a rigid body not to move or rotate by using these keywords, you
must insure its initial center-of-mass translational or angular
velocity is 0.0. Otherwise the initial translational or angular
momentum the body has will persist.
An xflag, yflag, or zflag set to {off} means turn off the component of
force or torque in that dimension. A setting of {on} means turn on
the component, which is the default. Which rigid body(s) the settings
apply to is determined by the first argument of the {force} and
{torque} keywords. It can be an integer M from 1 to Nbody, where
Nbody is the number of rigid bodies defined. A wild-card asterisk can
be used in place of, or in conjunction with, the M argument to set the
flags for multiple rigid bodies. This takes the form "*" or "*n" or
"n*" or "m*n". If N = the number of rigid bodies, then an asterisk
with no numeric values means all bodies from 1 to N. A leading
asterisk means all bodies from 1 to n (inclusive). A trailing
asterisk means all bodies from n to N (inclusive). A middle asterisk
means all bodies from m to n (inclusive). Note that you can use the
{force} or {torque} keywords as many times as you like. If a
particular rigid body has its component flags set multiple times, the
settings from the final keyword are used.
For computational efficiency, you should typically define one fix
rigid/meso command which includes all the desired rigid bodies. LAMMPS
will allow multiple rigid/meso fixes to be defined, but it is more
expensive.
:line
The keyword/value option pairs are used in the following ways.
The {reinit} keyword determines, whether the rigid body properties
are re-initialized between run commands. With the option {yes} (the
default) this is done, with the option {no} this is not done. Turning
off the re-initialization can be helpful to protect rigid bodies against
unphysical manipulations between runs or when properties cannot be
easily re-computed (e.g. when read from a file). When using the {infile}
keyword, the {reinit} option is automatically set to {no}.
:line
The {infile} keyword allows a file of rigid body attributes to be read
in from a file, rather then having LAMMPS compute them. There are 5
such attributes: the total mass of the rigid body, its center-of-mass
position, its 6 moments of inertia, its center-of-mass velocity, and
the 3 image flags of the center-of-mass position. For rigid bodies
consisting of point particles or non-overlapping finite-size
particles, LAMMPS can compute these values accurately. However, for
rigid bodies consisting of finite-size particles which overlap each
other, LAMMPS will ignore the overlaps when computing these 4
attributes. The amount of error this induces depends on the amount of
overlap. To avoid this issue, the values can be pre-computed
(e.g. using Monte Carlo integration).
The format of the file is as follows. Note that the file does not
have to list attributes for every rigid body integrated by fix rigid.
Only bodies which the file specifies will have their computed
attributes overridden. The file can contain initial blank lines or
comment lines starting with "#" which are ignored. The first
non-blank, non-comment line should list N = the number of lines to
follow. The N successive lines contain the following information:
ID1 masstotal xcm ycm zcm ixx iyy izz ixy ixz iyz vxcm vycm vzcm lx ly lz ixcm iycm izcm
ID2 masstotal xcm ycm zcm ixx iyy izz ixy ixz iyz vxcm vycm vzcm lx ly lz ixcm iycm izcm
...
IDN masstotal xcm ycm zcm ixx iyy izz ixy ixz iyz vxcm vycm vzcm lx ly lz ixcm iycm izcm :pre
The rigid body IDs are all positive integers. For the {single}
bodystyle, only an ID of 1 can be used. For the {group} bodystyle,
IDs from 1 to Ng can be used where Ng is the number of specified
groups. For the {molecule} bodystyle, use the molecule ID for the
atoms in a specific rigid body as the rigid body ID.
The masstotal and center-of-mass coordinates (xcm,ycm,zcm) are
self-explanatory. The center-of-mass should be consistent with what
is calculated for the position of the rigid body with all its atoms
unwrapped by their respective image flags. If this produces a
center-of-mass that is outside the simulation box, LAMMPS wraps it
back into the box.
The 6 moments of inertia (ixx,iyy,izz,ixy,ixz,iyz) should be the
values consistent with the current orientation of the rigid body
around its center of mass. The values are with respect to the
simulation box XYZ axes, not with respect to the principal axes of the
rigid body itself. LAMMPS performs the latter calculation internally.
The (vxcm,vycm,vzcm) values are the velocity of the center of mass.
The (lx,ly,lz) values are the angular momentum of the body. The
(vxcm,vycm,vzcm) and (lx,ly,lz) values can simply be set to 0 if you
wish the body to have no initial motion.
The (ixcm,iycm,izcm) values are the image flags of the center of mass
of the body. For periodic dimensions, they specify which image of the
simulation box the body is considered to be in. An image of 0 means
it is inside the box as defined. A value of 2 means add 2 box lengths
to get the true value. A value of -1 means subtract 1 box length to
get the true value. LAMMPS updates these flags as the rigid bodies
cross periodic boundaries during the simulation.
NOTE: If you use the {infile} keyword and write restart
files during a simulation, then each time a restart file is written,
the fix also write an auxiliary restart file with the name
rfile.rigid, where "rfile" is the name of the restart file,
e.g. tmp.restart.10000 and tmp.restart.10000.rigid. This auxiliary
file is in the same format described above. Thus it can be used in a
new input script that restarts the run and re-specifies a rigid fix
using an {infile} keyword and the appropriate filename. Note that the
auxiliary file will contain one line for every rigid body, even if the
original file only listed a subset of the rigid bodies.
:line
[Restart, fix_modify, output, run start/stop, minimize info:]
No information is written to "binary restart files"_restart.html.
If the {infile} keyword is used, an auxiliary file is written out
with rigid body information each time a restart file is written, as
explained above for the {infile} keyword.
None of the "fix_modify"_fix_modify.html options are relevant to this
fix.
This fix computes a global array of values which can be accessed by
various "output commands"_Howto_output.html.
The number of rows in the array is equal to the number of rigid
bodies. The number of columns is 28. Thus for each rigid body, 28
values are stored: the xyz coords of the center of mass (COM), the xyz
components of the COM velocity, the xyz components of the force acting
on the COM, the components of the 4-vector quaternion representing the
orientation of the rigid body, the xyz components of the angular momentum
of the body around its COM, the xyz components of the torque acting on the
COM, the 3 principal components of the moment of inertia and the xyz image
flags of the COM.
The center of mass (COM) for each body is similar to unwrapped
coordinates written to a dump file. It will always be inside (or
slightly outside) the simulation box. The image flags have the same
meaning as image flags for particle positions (see the "dump" command).
This means you can calculate the unwrapped COM by applying the image
flags to the COM, the same as when unwrapped coordinates are written
to a dump file.
The force and torque values in the array are not affected by the
{force} and {torque} keywords in the fix rigid command; they reflect
values before any changes are made by those keywords.
The ordering of the rigid bodies (by row in the array) is as follows.
For the {single} keyword there is just one rigid body. For the
{molecule} keyword, the bodies are ordered by ascending molecule ID.
For the {group} keyword, the list of group IDs determines the ordering
of bodies.
The array values calculated by this fix are "intensive", meaning they
are independent of the number of particles in the simulation.
No parameter of this fix can be used with the {start/stop} keywords of
the "run"_run.html command.
This fix is not invoked during "energy minimization"_minimize.html.
:line
[Restrictions:]
This fix is part of the USER-SDPD package and also depends on the RIGID
package. It is only enabled if LAMMPS was built with both packages. See
the "Build package"_Build_package.html doc page for more info.
This fix requires that atoms store density and internal energy as
defined by the "atom_style meso"_atom_style.html command.
All particles in the group must be mesoscopic SPH/SDPD particles.
[Related commands:]
"fix meso/move"_fix_meso_move.html, "fix rigid"_fix_rigid.html,
"neigh_modify exclude"_neigh_modify.html
[Default:]
The option defaults are force * on on on and torque * on on on,
meaning all rigid bodies are acted on by center-of-mass force and
torque. Also reinit = yes.
:line
:link(Miller)
[(Miller)] Miller, Eleftheriou, Pattnaik, Ndirango, and Newns,
J Chem Phys, 116, 8649 (2002).

Some files were not shown because too many files have changed in this diff Show More