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Author SHA1 Message Date
a59b7e4d56 patch 24Jul17 2017-07-24 09:09:22 -06:00
2eaea2d274 Merge pull request #594 from junghans/license
LICENSE: update address of Free Software Foundation
2017-07-24 08:56:11 -06:00
1ddace4dba Merge pull request #595 from libAtoms/idces2quip
Add a (contrived) molecular example for USER-QUIP
2017-07-24 08:55:03 -06:00
af3d0ca381 Merge pull request #593 from akohlmey/collected-bug-fixes-and-small-updates
Collected bug fixes and small updates
2017-07-24 08:54:16 -06:00
c24e316baa avoid floating point overflows in iterative solvers of fix shake 2017-07-22 23:15:01 -04:00
2c6e177d5c avoid reporting negative memory allocation when memory_usage() is called before initialized 2017-07-22 23:14:17 -04:00
7b2182833f disallow binary output with dump style local. fixes #596 2017-07-22 10:35:16 -04:00
1afab981b0 Clarified some points in in.molecular example 2017-07-22 14:40:33 +01:00
1af937e99d Update in.molecular
- expand comments to provide more details on the choice of exclusion settings
- comment out dump file generation
2017-07-21 22:00:29 -04:00
4e0a249e27 Add a (contrived) molecular example for USER-QUIP
This example showcases the use of different 'special_bonds' settings for
different pair styles, so quip gets all the bonded neighbours but lj can
exclude them if it needs to.

The results have been checked against a pure quip implementation of the
potential; the expected lammps output is included.

DISCLAIMER: This example mixes parameters for methane and silane and is
NOT intended to be a realistic representation of either system.
2017-07-22 01:33:15 +01:00
edc756a65f LICENSE: update address of Free Software Foundation 2017-07-21 17:13:28 -06:00
a477f26477 add support for trapping floating point exception as an optional compile time feature
we may make this a run time setting by connecting this code to a command.
2017-07-21 15:37:40 -04:00
b1b399d5c3 update readme for examples 2017-07-21 15:06:15 -04:00
00474ab09d handle one more case where allowing shifted potential with cutoff 0.0 would create NaNs 2017-07-21 10:30:11 -04:00
733ea61bf1 correct typo in USER-REAXC code 2017-07-21 01:15:24 -04:00
5c13b087e4 Merge pull request #592 from akohlmey/reaxc-bugfix
Bugfix for USER-REAXC and reaxc in KOKKOS and USER-OMP
2017-07-20 16:26:20 -06:00
ec23aef20b fix reaxc division by zero bug also for USER-OMP variant 2017-07-20 18:19:53 -04:00
61b1487cbd avoid division by zero in reaxff bond interaction computations in very rare cases
this addresses the issue reported by stan and ishan
2017-07-20 18:17:19 -04:00
e53583d9c6 Merge pull request #590 from lammps/fortran-dftb
update of Fortran-DFTB interface to be compatible with fix msst
2017-07-20 15:30:23 -06:00
551001f172 revert change, that is part of the kim-install branch and changeset 2017-07-20 17:08:19 -04:00
5dbe2df854 revert change that accidentally undoes part of PRs #583 and #588 2017-07-20 17:07:31 -04:00
3f83396837 Merge pull request #588 from akohlmey/colvars-quickfix
avoid makefile failure, if LAMMPS has not been configured yet
2017-07-20 14:45:25 -06:00
59db5f6a17 update of Fortran-DFTB interface to be compatible with fix msst 2017-07-20 14:40:35 -06:00
1b704bab18 Merge branch 'colvars-safer-makefiles' of https://github.com/giacomofiorin/lammps into colvars-quickfix 2017-07-20 15:59:23 -04:00
c98f6140e7 Change order of targets in Makefiles for Colvars 2017-07-20 15:49:31 -04:00
5031f5b807 Comment out use by Colvars of Makefile.lammps from other packages 2017-07-20 15:48:10 -04:00
9d0d90c038 README clarification from giacomo 2017-07-20 15:25:27 -04:00
66154e8a8b avoid makefile failure, if LAMMPS has not been configured yet 2017-07-20 15:05:58 -04:00
3cd597e948 Merge pull request #585 from akohlmey/make-py-manual-cleanup
Make.py removal and manual cleanup
2017-07-20 12:05:04 -06:00
eca61226c2 Merge pull request #583 from giacomofiorin/colvars-update-2017-07-19
Update Colvars to version 2017-07-15 and support automated builds for it
2017-07-20 12:04:49 -06:00
fac3e3daa2 Merge pull request #581 from libAtoms/idces2quip
Modified USER-QUIP interface to pass lammps atom IDs
2017-07-20 12:04:32 -06:00
72e5f537c8 Merge pull request #576 from akohlmey/sanitizer-changes
Collected changes for issues detected by gcc -fsanitize
2017-07-20 12:03:40 -06:00
bdd2f3a6b2 remove references to Make.py and USER-CUDA 2017-07-20 12:25:42 -04:00
a351977c59 update manual links that got broken when removing and renumbering a section 2017-07-20 12:25:42 -04:00
8499e72cdc updates to USER-REAXC code in USER-OMP from Chris Knight. addresses issues with multiple threads in use 2017-07-20 12:11:46 -04:00
ef9fb944c7 Detect number of processors for make 2017-07-20 10:53:08 -04:00
187a80be77 Add forgotten decode() in Install.py 2017-07-19 22:21:49 -04:00
ee6cac826e Update Colvars to version 2017-07-15 and support automated builds for it 2017-07-19 14:24:07 -04:00
52a1c54d50 support QUIP wrapper API version query, relax hybrid restriction to allow hybrid/overlay, update docs 2017-07-19 13:17:35 -04:00
fcf9607a66 Update USER_QUIP docs to clarify use of "special_bonds" 2017-07-19 17:47:21 +01:00
148364949e fix memory corruption issue in fix reax/c/species 2017-07-18 16:11:49 -04:00
17aff29fe2 fix off-by-one bug when copying strings 2017-07-18 15:48:31 -04:00
f96b9e0dcf add various checks and improvements to identify incompatible uses and warn or exit with error message 2017-07-18 15:48:18 -04:00
02572a4099 add workaround that allows pair style quip to work with -DLAMMPS_BIGBIG, assuming tags are still only 32-bit signed integer 2017-07-18 14:41:38 -04:00
085cbee116 protect LAMMPS from calling incompatible QUIP library with -DLAMMPS_BIGBIG 2017-07-18 11:17:25 -04:00
4ad9528999 safer handling of memory management for lists in reax/c 2017-07-18 07:37:14 -04:00
358915d16e avoid division by zero in peri pair styles 2017-07-18 07:26:45 -04:00
d9186c8fde Revert "use neighbor list exclusions instead of a zero cutoff"
This reverts commit bbb4d63db9.
2017-07-18 01:17:34 -04:00
bc5186bc30 fix unitialized pointer issue in USER-OMP with pppm/disp 2017-07-18 00:44:24 -04:00
c083d5d6f3 fix memory leak in list of neighbor list requests 2017-07-18 00:18:03 -04:00
c3a2ed0d1b plug small memory leak in USER-OMP variants of pppm kspace styles 2017-07-17 23:56:38 -04:00
23033404b0 skip table consistency check for bitmapped tables 2017-07-17 18:18:21 -04:00
bda0730169 Modified the quip/lammps interface to pass lammps atom ids 2017-07-17 16:55:05 +01:00
992ce79701 add sanity checks to EAM potential file reader subroutine 2017-07-16 14:37:30 -04:00
4ec07422f0 avoid division by zero when using cutoff 0.0 with pair_modify shift yes 2017-07-14 23:33:00 -04:00
3f297382ac Revert "do not allow pairwise cutoffs <= 0.0. avoids undefined behavior and division by zero errors"
This reverts commit a04711b21f.
2017-07-14 22:41:59 -04:00
cc9b3864bf Merge pull request #577 from v0i0/airebo-kim-difference
AIREBO: Add doc about OpenKIM issue
2017-07-14 16:22:15 -06:00
bbb4d63db9 use neighbor list exclusions instead of a zero cutoff 2017-07-14 14:52:08 -04:00
1c92eecea7 move updated gauss_flow example to the correct folder 2017-07-14 14:01:41 -04:00
a04711b21f do not allow pairwise cutoffs <= 0.0. avoids undefined behavior and division by zero errors 2017-07-14 13:49:28 -04:00
e084d4dad6 print warnings in Pair::init() only on MPI rank 0 2017-07-14 13:48:21 -04:00
522bc13d67 avoid casts to the wrong derived class, which upsets code analysis tools. seems to improve performance, too. 2017-07-14 13:47:49 -04:00
14f1d646ad provide working examples for all four peridynamics models and reference outputs 2017-07-14 13:46:19 -04:00
3b1134c164 correct formatting error in peridynamics pair style docs 2017-07-14 13:42:02 -04:00
4d4c03a1e4 restore gaussian flow example that was lost. tweak input to make it usable for comparing 2017-07-14 12:33:40 -04:00
e5405cdb04 AIREBO: Add doc about OpenKIM issue 2017-07-14 17:57:25 +02:00
8a1db83b73 silence static code analysis warning 2017-07-14 10:31:51 -04:00
de45a46529 Merge branch 'compute_rdf_dynamic' into sanitizer-changes 2017-07-13 17:39:12 -04:00
32ca58bdf2 whitespace cleanup 2017-07-13 17:34:30 -04:00
111786e92e avoid trying to free NULL pointers and reallocate storage for OpenMP, when not using OpenMP styles 2017-07-13 17:33:56 -04:00
132cee9840 protect warning printf()s to be only printed on rank 0 2017-07-13 17:33:00 -04:00
609c8b1e87 add flag to reax/c system struct to signaling, whether OpenMP is active 2017-07-13 17:32:27 -04:00
9988030409 Merge pull request #563 from akohlmey/airebo-example
Add AIREBO and AIREBO-M example input deck
2017-07-13 13:12:30 -06:00
fc36754ca2 Merge pull request #561 from v0i0/fix-airebo-various
Fix Various AIREBO issues
2017-07-13 13:10:42 -06:00
3a46c34c2f Merge pull request #574 from lammps/snap-virial
changes to SNAP virial from Aidan
2017-07-13 13:07:29 -06:00
cb935730c0 Merge branch 'master' into compute_rdf_dynamic 2017-07-13 15:02:50 -04:00
983eb0e80d Merge pull request #572 from junghans/data2xmovie
tools/Makefile: remove remains of data2xmovie
2017-07-13 11:27:46 -06:00
fc6c10c9a9 Merge pull request #571 from hasanmetin/reaxc-omp-credits-update
updated the credits and citations for pair style reaxc/omp and qeq/reax/omp
2017-07-13 11:27:18 -06:00
a3a0c9b144 Merge pull request #570 from akohlmey/collected-small-changes
Collected small changes
2017-07-13 11:26:47 -06:00
b64849d574 Merge pull request #569 from ellio167/kim-install-py
Kim install py
2017-07-13 11:24:43 -06:00
e58bcd8b4a Merge pull request #568 from akohlmey/fix_gcmc_parallel_workaround
Workaround for data corruption when using fix gcmc in parallel with shake or fix rigid
2017-07-13 11:23:49 -06:00
ef2f4980e9 Merge pull request #566 from akohlmey/compute_rdf_dynamic
Dynamic group and normalization support for compute rdf
2017-07-13 11:23:22 -06:00
d3a45f6d50 Merge pull request #560 from aershadinia/master
EES wall potential
2017-07-13 11:22:47 -06:00
d0cc1dfbb8 changes to SNAP virial from Aidan 2017-07-13 11:19:35 -06:00
de8d417aec fix off-by-one memory allocation bug 2017-07-13 10:55:13 -04:00
0af9203fdc remove useless and incorrect neighbor list request in fix qeq/comb/omp 2017-07-12 18:32:04 -04:00
c24fca61f3 fix possible uninitialized data access with pppm and pppm/disp 2017-07-12 18:14:11 -04:00
01e848387a avoid accessing uninitialized data when exiting LAMMPS early 2017-07-12 18:00:38 -04:00
734729b0a4 avoid small memory leak with USER-REAXC + USER-OMP, spotted by GCC's address sanitizer 2017-07-12 17:27:49 -04:00
a419c7c57c update src/.gitignore for fix wall*/ees sources 2017-07-12 11:40:35 -04:00
69d97fa60c fix enforce2d has to be defined after fixes with enforce2d_flag set
this check currently only applies to rigid fixes and is needed
so that their respective enforce2d function is called _after_
the post force functions. this is required in combination with
commit a9ff593763 to allow rigid
fixes use the langevin option correctly for 2d systems
2017-07-12 11:26:16 -04:00
a9ff593763 avoid segfault when calling enforce2d before langevin data has been initialized 2017-07-12 09:48:07 -04:00
ddc9621325 remove absolutely last reference to xmovie 2017-07-11 18:30:41 -04:00
f717a70638 tools/Makefile: remove remains of data2xmovie
data2xmovie was removed in e110d6961a
2017-07-11 16:16:03 -06:00
f7f4a24930 whitspace cleanup 2017-07-11 15:01:15 -04:00
338fc28970 combine citeme.log entry for pair reax/c/omp and fix qeq/reax/omp 2017-07-11 14:59:08 -04:00
5a1e020bf0 updated the credits and citations for pair style reaxc/omp and qeq/reax/omp 2017-07-11 08:05:36 -07:00
c8939d8df6 clarify explanation of body style molecule in rigid fixes 2017-07-11 09:43:54 -04:00
e30c5fc956 Fixed shebang and renamed to lib/kim/Install.py 2017-07-10 21:05:29 -05:00
c29e8fba9b Updated lib/kim/README file to go along with new install.py 2017-07-10 17:00:30 -05:00
8d592f4b9e Finalized code for lib/kim/install.py 2017-07-10 16:43:23 -05:00
c9a0d38a3e mention restriction for use with fix shake or fix rigid in fix gcmc docs 2017-07-10 17:34:00 -04:00
b5e9e90bb6 white space cleanup 2017-07-10 17:21:20 -04:00
92395e9bb4 disallow MC moves with fix rigid and fix shake active. update examples and add shake example 2017-07-10 17:19:37 -04:00
71ddcaf0b6 whitespace cleanup 2017-07-07 15:50:19 -04:00
fe888e4622 add support for recomputing normalization factors and finite size correction during 2017-07-07 15:39:25 -04:00
b0be8b24ea Further work on lib/kim/install.py 2017-07-06 15:50:03 -05:00
16fc2d6fe1 Add install.py and update config for kim lib 2017-07-06 15:49:58 -05:00
7193fffe0d make example input / output conform with LAMMPS conventions (no dump files, no log command) and update reference outputs 2017-07-06 16:08:25 -04:00
4339379948 patch 6Jul17 2017-07-06 13:58:26 -06:00
23925b3a57 update fix wall/ees and wall/region/ees file to conform more to common formatting
also fix some typos and formatting issues
2017-07-06 14:47:44 -04:00
423e3b6389 integrate fix wall/ees and wall/region/ees into doc system 2017-07-06 14:45:51 -04:00
87af3b1fd9 Merge pull request #564 from lammps/fix-external
bugfix for fix msst
2017-07-06 08:58:20 -06:00
8be6d5bfd8 Merged two doc files 2017-07-06 20:21:55 +09:00
a62eb43791 Delete "fix_wall_region_ees.txt" 2017-07-06 20:20:12 +09:00
33be51af54 Deleted "fix wall/region/ees" doc file 2017-07-06 20:19:40 +09:00
47649ff50f some edits to make examples more illustrative. 2017-07-06 15:35:06 +09:00
0423971205 whitespace cleanup 2017-07-06 00:24:00 -04:00
4ee7c6f5ca remove code without effect 2017-07-06 00:23:50 -04:00
7f63c09667 correct comment for Fix::ev_setup() 2017-07-05 22:35:58 -04:00
a5234d7aea fix bug reported by richard berger via https://ci.lammps.org/job/lammps/job/master/job/regression/160/testReport/junit/examples/msst/msst/ 2017-07-05 22:34:34 -04:00
fa469ae1d0 add polyethylene airebo example for future reference 2017-07-05 17:44:18 -04:00
e493b6a648 Fix sigcut class variable actually used 2017-07-05 22:52:29 +02:00
be8360ac4b Merge pull request #562 from lammps/fix-external
additional fix external hooks for calling programs
2017-07-05 14:46:10 -06:00
4de9cec1b6 make old_velocities allocation safer while retaining the test for nlocal 2017-07-05 16:22:39 -04:00
8c3f6947ad remove unused variables to silence compiler warnings 2017-07-05 16:19:59 -04:00
894e0c3cf5 simplify parsing of optional arguments 2017-07-05 16:19:24 -04:00
09ad293425 remove dead code 2017-07-05 15:04:35 -04:00
e625e79171 safer handling of processors w/o local atoms 2017-07-05 15:04:27 -04:00
f1088a5003 changes requested by @sjplimp 2017-07-05 15:03:58 -04:00
d451dbb1a0 adjust EES wall input example to print out some thermodynamic info that can be used for testing 2017-07-05 13:54:56 -04:00
6eddc1a2ee coding style and whitespace cleanup to match LAMMPS style 2017-07-05 12:33:41 -04:00
1bf1cb150f Updated credits 2017-07-05 18:26:32 +02:00
ea4f16bd79 additional fix external hooks for calling programs 2017-07-05 10:01:19 -06:00
9fa4588eb7 fixed a typo 2017-07-05 23:46:48 +09:00
f5440a777b Merge branch 'master' of https://github.com/aershadinia/lammps
hello
2017-07-05 23:25:03 +09:00
92831f185b Merge branch 'master' of https://github.com/aershadinia/lammps 2017-07-05 23:23:09 +09:00
8e279d4ec8 Examples moved 2017-07-05 23:16:42 +09:00
cbd8f99754 Restrictions Added 2017-07-05 23:15:27 +09:00
b720f39163 Restrictions Added 2017-07-05 23:15:23 +09:00
ff761d639a Sync AIREBO USER-OMP implementation. 2017-07-05 15:29:40 +02:00
d2f7f4843a AIREBO Fix Credits 2017-07-05 15:16:45 +02:00
7e42af18bc Feature: AIREBO parametrize cutoff switching
In #514 it has been raised that the switching function that
ensures a smooth transition to the cutoff is only correct if
cutlj = 3.0. This patch gives users an opportunity to configure
the switching function together with the cutoff by specifying
the start of the transition region. Behaviour in the default case
remaing unchanged.
This allows users to specify larger cutoffs than 3 (which used to
have no effect) and get correct cutoff behaviour for values less
then 3.
2017-07-05 15:11:58 +02:00
74d63c24fd Fix AIREBO missing derivative in bondorderLJ
This change replaces the bondorderLJ() function with code provided
by Github user CF17, which is based on the bondorder() code.
It could be fixed with a shorter patch [1], but layering fix upon
fix seems to be unwise in this case.
While the code at this point departs from following the Fortran
code closely, the reason is that the bug is present in the Fortran
code as well.
Instead, the new code follows closely the bondorder() code that
already exists, which should be easier to maintain in the future.
This patch makes the two functions consistent with each other,
and makes outside contributions easier.
Since it uses a different approach to compute its value, some
explanation of that reasoning has been added on top.

1: e8c5c662b2
2017-07-05 14:51:34 +02:00
769870cfc9 Proper spline coefficient calculation for AIREBO 2017-07-05 12:55:53 +02:00
e0521f27b4 Added reference to example directory. 2017-07-05 15:08:07 +09:00
5eb5391b20 Add reference to example 2017-07-05 15:06:34 +09:00
d3b8e688c9 Files Added to MISC 2017-07-05 14:57:43 +09:00
67d474df2a deleteing USER-EES 2017-07-05 14:39:37 +09:00
d0a397d6cb Merge pull request #559 from lammps/fortran3
3rd variant of Fortran wrapper for DFTB+ calling LAMMPS
2017-07-03 14:50:33 -06:00
f670dba3d0 3rd variant of Fortran wrapper for DFTB+ calling LAMMPS 2017-07-03 14:24:16 -06:00
6fc0a94e87 Merge pull request #524 from martok/package-meamc
Package USER-MEAMC
2017-07-03 12:30:01 -06:00
5c0c8bb4cd Merge pull request #558 from lammps/intel
memory allocation bugfix for USER-INTEL pppm from M Brown
2017-07-03 12:25:12 -06:00
9eeb97b039 Merge pull request #544 from akohlmey/tip4p-triclinic
Correct handling of triclinic box support in pppm/tip4p and pppm/tip4p/omp
2017-07-03 12:24:18 -06:00
9ca9b5e2ff add authors tag to pull request template 2017-07-03 12:06:36 -04:00
db73eca29f correct example inputs for recent changes to create_bonds command 2017-07-03 11:43:55 -04:00
2d1941ed9b make USER-INTEL compilable again with gcc and without OpenMP active 2017-07-03 11:33:08 -04:00
e634c5a2de memory allocation bugfix for USER-INTEL pppm from M Brown 2017-07-03 08:53:53 -06:00
22f3db4723 remove some dead code and prune argument lists accordingly 2017-07-01 18:16:36 -04:00
a1574fc03d remove unused variables 2017-07-01 17:55:13 -04:00
d68fb1cbb8 avoid repeated computation of deltaik and deltajk, calls to pow() 2017-07-01 17:49:14 -04:00
060e32973e another speedup by folding dsij() into meam_force() 2017-07-01 17:07:56 -04:00
a4a15f24bd fold screen() function into getscreen() and avoid some repeated operations 2017-06-30 18:44:51 -04:00
883b7aaa0e Merge pull request #557 from lammps/create-bonds
add single options to create_bonds command
2017-06-30 14:18:15 -06:00
1fff30af90 update or create example outputs for meam and meam/c 2017-06-30 15:30:06 -04:00
a490e04d24 add backward compatibility item to pull request template 2017-06-30 15:07:43 -04:00
b445f8eadf spell-check new additions to create_bonds doc page 2017-06-30 14:59:08 -04:00
b79044d4f6 Merge pull request #554 from jewettaij/master
Have extra/XXX/per/atom set by keyword to the read_data command
2017-06-30 11:47:46 -06:00
711afe5062 add single options to create_bonds command 2017-06-30 11:30:43 -06:00
3bf2c60276 Merge pull request #553 from Pakketeretet2/USER-MANIFOLD-gaussian-bump
Update to USER-MANIFOLD gaussian bump
2017-06-30 11:08:47 -06:00
d5119b2d75 Merge pull request #550 from stanmoore1/kokkos_leakfix
Fix Memory Leak in Kokkos NeighList
2017-06-30 11:08:30 -06:00
b2b621a2e1 Merge pull request #547 from akohlmey/collected-bugfixes
Collected small bugfixes and updates
2017-06-30 11:08:02 -06:00
b5250d11f6 Merge pull request #545 from akohlmey/issue-and-pull-request-templates
Add folder .github containing administrative files for use with GitHub
2017-06-30 11:06:58 -06:00
9dad95d101 performance improvement through moving inlinable functions to header file 2017-06-30 13:04:09 -04:00
f6faad335c update documentation for nb3/harmonic pair style according to e-mail to lammps-users 2017-06-30 11:37:18 -04:00
5548704700 Move stateless functions to separate module, improve style
- use static/const
- return instead of ptr-parameter, &ref if more than one return
- replace macros from header with inline functions
- remove useless/old comments
2017-06-30 15:37:26 +02:00
e0939ac795 Re-Run clang-format 2017-06-30 12:28:22 +02:00
d5921e9fb9 consolidate and update error message and read_data documentation for the updated read_data command 2017-06-29 16:30:49 -04:00
aa3f4b7690 change the handling of reading "extra XXX per atom", so that the final choice is the larger of the value in the file and the keyword 2017-06-29 16:09:23 -04:00
38075455b6 new keywords for read_data: extra/X/per/atoms + changes to docs 2017-06-28 17:55:30 -07:00
fa30635465 Revert "added feature to write_data.cpp to support "extra bonds" (angles,dihedrals,impropers,special)."
This reverts commit 0c2f7c74be.
2017-06-28 17:48:32 -07:00
0c2f7c74be added feature to write_data.cpp to support "extra bonds" (angles,dihedrals,impropers,special). 2017-06-28 14:12:03 -07:00
91bce7ccf9 Replaced std::fabs with fabs. 2017-06-28 09:48:00 -04:00
d0470799ac consistently check for all per-atom-type masses being set only when per-atom masses are not set
rather than placing an if statement around every incidence of calling atom->check_mass() to ensure it is only called when per atom masses are not set, we place that check _inside_ Atom::check_mass(). This avoids unexpected error messages.
2017-06-28 06:26:21 -04:00
076990c28a Updated Gaussian bump so that it has a better taper function. 2017-06-27 16:48:33 -04:00
661e51b607 remove non-ascii characters and spell check 2017-06-27 00:38:53 -04:00
d076040471 use itemized list instead of paragraphs for links at the top 2017-06-27 00:24:04 -04:00
2f9c0a3b8e more formatting issues addressed 2017-06-27 00:23:10 -04:00
b9d213ee2b update formatting for contributing ToC 2017-06-27 00:21:29 -04:00
fa3c7727e1 contributing guidelines, issue and pull request template are now feature complete
This is still a draft and in need of editing, proofreading and testing for formatting.
2017-06-27 00:17:37 -04:00
9fec8a0470 Remove clean_copy function from pair_vashishta_kokkos 2017-06-26 10:56:03 -06:00
b889776557 Fixing memory leak in Kokkos neighborlist 2017-06-26 10:51:26 -06:00
8fca667e4b Change indexing of remaining variables and locals
- Voigt index tables
- local variables
- remove shims from header
2017-06-26 18:09:11 +02:00
f7077d9672 Merge branch 'collected-bugfixes' of github.com:akohlmey/lammps into collected-bugfixes 2017-06-26 11:27:31 -04:00
f89a7266bf make USER-INTEL compilable again with gcc and without OpenMP active 2017-06-25 23:57:42 -04:00
1257955662 Merge branch 'master' of https://www.github.com/lammps/lammps 2017-06-23 19:31:43 -04:00
1370385c8c patch 23Jun17 2017-06-23 17:10:59 -06:00
2240c3d7d3 Merge pull request #548 from lammps/doc-update
doc page clarifications for CHARMM energy and dipole pre-factors
2017-06-23 16:48:37 -06:00
4fcbd58d5a doc page clarifications for CHARMM energy and dipole pre-factors 2017-06-23 15:54:14 -06:00
c2c6dc1458 remove spurious comment line 2017-06-23 16:24:37 -04:00
18983c307e fix qeq/reax/omp bugfix from metin 2017-06-23 16:24:00 -04:00
25a5d12af3 Merge pull request #541 from lammps/charmm
use CHARMM energy conversion factor with new CHARMM pair styles
2017-06-23 09:10:04 -06:00
05fbf93455 skip deleting internal data before setup has been run 2017-06-23 10:37:00 -04:00
73b948dcfc pppm must be fully reinitialized after switching to triclinic box to avoid memory corruption 2017-06-23 10:01:45 -04:00
374eef2b17 add first draft of issue template 2017-06-23 01:13:10 -04:00
dc7243838b first draft of a contributor's guide file 2017-06-23 00:54:20 -04:00
57d5cfede3 add first draft of a pull request template 2017-06-22 23:07:09 -04:00
feb500b526 reword the kspace_modify fftbench keyword docs to reflect the current state (i.e. off by default) of code 2017-06-22 19:17:41 -04:00
a714b57741 make neighbor list reset message for minimization more explicit 2017-06-22 19:07:57 -04:00
c5430b0a26 print info messages when changing qqr2e constant in fully CHARMM compatible pair styles 2017-06-22 18:41:44 -04:00
c081d383d1 Merge branch 'master' of https://www.github.com/lammps/lammps 2017-06-22 18:37:37 -04:00
f8364342c2 port corrected triclinic handling from pppm/tip4p to pppm/tip4p/omp 2017-06-22 18:12:28 -04:00
488d1b7a79 correct find_M() function in pppm/tip4p to properly account for ghost atoms not being in lamda space with triclinic cells 2017-06-22 17:36:18 -04:00
dadd1c8b4d Remove neigh_f2c/c2f, related cleanup
- neighbour lists now use C indexing
- removed many arr*v() macros
- removed some unneccessary pointers
- minor reformatting
2017-06-22 19:02:14 +02:00
60c3f3d64c use CHARMM energy conversion factor with new CHARMM pair styles 2017-06-22 09:15:15 -06:00
7a4a569859 Merge pull request #540 from lammps/neighrespa
fix issue with rRESPA inner/middle neighbor lists
2017-06-22 07:54:12 -06:00
4fc3f4f7e5 Merge pull request #538 from akohlmey/collected-small-changes
Collected small changes and bugfixes
2017-06-22 07:52:21 -06:00
f092da80a9 Fix some shadowing warnings 2017-06-22 13:28:12 +02:00
b0ddabbcde update examples for fix filter/corotate to comply with new CHARMM restrictions 2017-06-22 00:19:21 -04:00
b9029ada77 fix bug in incorrect use of O coordinate instead of M coordinate in pppm/tip4p 2017-06-22 00:07:59 -04:00
de3157f720 document new restrictions to CHARMM compatible dihedral styles 2017-06-21 19:31:40 -04:00
0c6a751751 may check for 1-4 scaling factors in CHARMM dihedral styles only when "weightflag" is set, since they may be used with amber 2017-06-21 19:29:31 -04:00
612b44a895 enforce using 'special_bonds charmm' for dihedral styles charmm and charmmfsw 2017-06-21 19:15:52 -04:00
684b7334a5 enforce that CHARMM dihedral styles are run at the same r-RESPA level as pair 2017-06-21 19:08:02 -04:00
1fc2eb1e3e fix issue with rRESPA inner/middle neighbor lists 2017-06-21 15:12:51 -06:00
e69ef56f10 Merge pull request #539 from lammps/neighsize
insure compute pair/property local will use a copy of granular neighbor list
2017-06-21 15:03:12 -06:00
7dc380b113 insure compute pair/property local will use a copy of granular neigh list 2017-06-21 12:44:35 -06:00
f47aaa5f3c Merge branch 'master' of https://www.github.com/lammps/lammps 2017-06-21 14:11:12 -04:00
5e165e6782 fix array bounds issue due to typo. spotted by GCC. 2017-06-21 13:33:26 -04:00
02625b2855 fix typos introduced in original translation: results are correct again 2017-06-21 18:54:21 +02:00
1a77135ed6 whitespace cleanup in docs 2017-06-21 09:38:10 -04:00
f45c7e1fb0 update fix ti/spring docs to reflect it is part of USER-MISC 2017-06-21 09:36:30 -04:00
0cfe8980d4 dead code removal 2017-06-20 22:07:40 -04:00
2988508cee correct indexing bug in pair style lj/long/tip4p/long 2017-06-20 17:53:45 -04:00
15c596153a remove dead code 2017-06-20 17:38:28 -04:00
e13c94ed4f fix uninitialized variable bug spotted by coverity scan 2017-06-20 17:25:01 -04:00
812f1a8fab remove local variables shadowing global ones in BondsOMP() 2017-06-20 17:20:57 -04:00
218bc92c82 make pre-processor defines for using libc's qsort() consistent 2017-06-20 17:13:42 -04:00
ffa906de6f add C++ format identifiers to .h files 2017-06-20 16:18:34 -04:00
cccf72a21d make certain class member list is initialized to NULL before assigned to a neighbor list 2017-06-20 16:09:11 -04:00
87c028ed02 patch 20Jun17 2017-06-20 12:06:02 -06:00
bb47fa8783 Change indexing of all MEAM element arrays
- arrays in MEAM class
- eltind setting
- remove fmap translation
2017-06-20 19:56:14 +02:00
c79dc53c6a code improvement, less pointer params 2017-06-20 19:36:07 +02:00
72a1364d85 Merge branch 'master' into package-meamc 2017-06-20 13:21:46 -04:00
198fe7ecd7 fix storing of invalid memory pointer 2017-06-20 19:00:57 +02:00
84b530cca1 Merge pull request #537 from lammps/neb
minor changes to NEB doc pages and examples
2017-06-20 09:38:32 -06:00
50c9167913 small formatting correction in fix neb docs 2017-06-20 10:36:30 -04:00
d2610d9e7c minor changes to NEB doc pages and examples 2017-06-20 08:19:23 -06:00
326a8a1289 Merge pull request #536 from akohlmey/fix-nvcc-openmp-conflicts
Implement workaround for NVCC incompatibilities with OpenMP directives
2017-06-20 07:44:40 -06:00
b5300724bb Merge pull request #533 from lammps/user-intel
Updates for USER-INTEL package and NEB command flags/docs updates and issues
2017-06-20 07:44:17 -06:00
e129f18e6f Merge pull request #530 from akohlmey/no_static_sort_in_dump
Refactor Dump and Irregular classes to remove static class members
2017-06-20 07:43:49 -06:00
8c54fcd1b6 cleanup from aidan for fix reax/c/species and its KOKKOS version
this version eliminates the need for the PBCconnected list and avoids having to access the spec_atom array for ghost atoms
2017-06-19 17:31:54 -04:00
f5047ac3c7 augment fix shardlow check for ordering fixes to be KOKKOS compatible 2017-06-19 17:23:23 -04:00
164cedf353 protect all OpenMP pragmas with ifdefs and add special conditions for nvcc to ignore unsupported directives 2017-06-19 15:31:20 -04:00
3c329d1707 massive whitespace cleanup in USER-INTEL
removed are:
- DOS/Windows text format carriage return characters (^M)
- tabs replaced with spaces (tabs are evil!!)
- trailing whitespace
2017-06-19 13:23:01 -04:00
b687d16177 insert C++ file format indicator comments 2017-06-19 13:03:23 -04:00
9d3e34e492 add missing reference for lj/smooth/linear 2017-06-19 11:23:30 -04:00
8988b692a3 modified the documentation, first and last freeend can have different spring constants 2017-06-19 16:30:42 +02:00
c97415aefa corrected the initial free end 2017-06-19 14:57:39 +02:00
a9f3f90025 fix uninitialized members 2017-06-19 12:51:18 +02:00
9b8de3ba29 remove ifdefs for selecting between plain and hybrid merge sort. use hybrid only. 2017-06-17 09:30:41 -04:00
cd88b31450 same PR, also has cosmetic changes to new fix neb options 2017-06-16 17:02:05 -06:00
9b9f6d6fe2 USER-INTEL upgrade from M Brown 2017-06-16 16:56:28 -06:00
c1b0b1b3f9 restore old qsort() based code and add preprocessor directives to switch
-DLMP_USE_LIBC_QSORT will use qsort() from libc to sort (requires static/global variables).
-DLMP_USE_MERGE_SORT will use a plain merge sort. slightly slower for expensive comparisons.
-DLMP_USE_HYBRID_SORT will use hybrid merge sort. faster than merge sort (no static/global variables)
2017-06-16 18:17:48 -04:00
bc0241576f Merge pull request #532 from akohlmey/restore-heuristics-in-fix-shardlow
recover running USER-DPD with USER-OMP and suffixes
2017-06-16 09:46:58 -06:00
2a6f026853 mergesort performance improvements
- use insertion sort to pre-sort data in 32-element chunks
- swap pointers between merge runs instead of copying the data
2017-06-16 08:05:55 -04:00
8728a8ddae restore heuristics for checking against integrators that broke after PR #499 was merged 2017-06-15 15:16:50 -04:00
9aa450b832 Merge pull request #528 from akohlmey/no_static_in_ring_comm
Refactor ring communication to no longer require static class variables
2017-06-15 11:13:07 -06:00
0588c382f0 Merge pull request #513 from v0i0/bugfix-airebo-nconj-kronecker
Bugfix in AIREBO as reported in #59 by @KammIma
2017-06-15 11:12:29 -06:00
d3c90f3c14 Merge pull request #510 from akohlmey/collected-small-changes
Collected small changes
2017-06-15 11:12:14 -06:00
b62d526cc9 Revert "avoid undesired negative forces for high particle velocities in granular models"
This reverts commit 066123007c.
2017-06-15 11:01:36 -04:00
1a29048940 Merge pull request #531 from ohenrich/user-cgdna
Affiliation Update for USER-CGDNA
2017-06-15 08:54:52 -06:00
0a6b3f8790 Merge pull request #527 from dstelter92/master
Added compute_scalar to fix_grem
2017-06-15 08:54:22 -06:00
7227bc415d Merge pull request #526 from andeplane/vashishta_gpu
Implemented pair style vashishta in GPU package
2017-06-15 08:52:13 -06:00
a4bc233d86 Merge pull request #525 from akohlmey/user-tally-refactor
Refactoring of USER-TALLY computes to handle sparse/hybrid system for many processors plus bugfixes
2017-06-15 08:51:24 -06:00
5c5b4ffadb Merge pull request #522 from akohlmey/tip4p-cleanup-refactor
Refactor and bugfix for some TIP4P pair styles
2017-06-15 08:48:52 -06:00
30177c4eae Merge pull request #521 from pastewka/17_dump_nc
Updated NetCDF dump style (dump netcdf)
2017-06-15 08:47:29 -06:00
178eff237b Merge pull request #520 from stanmoore1/kokkos_update
Kokkos library update to v2.03.05
2017-06-15 08:47:09 -06:00
576b7f1d97 Merge pull request #519 from Pakketeretet2/USER-MANIFOLD-gaussian-bump
Some extensions/cleanup in USER-MANIFOLD
2017-06-15 08:46:55 -06:00
86369fec6b Merge pull request #517 from akohlmey/select-rigid-reinit-option
Add `reinit` keyword to rigid body fixes
2017-06-15 08:46:29 -06:00
79341ac5d1 Merge pull request #516 from akohlmey/check-rigid-overlap
Implement check whether commands or styles try to change cached properties in rigid body integrators
2017-06-15 08:44:05 -06:00
66945294a9 Merge pull request #515 from stanmoore1/remove_fences
Remove unnecessary thread fences in Kokkos package
2017-06-15 08:40:43 -06:00
9a7207e34c Merge pull request #511 from akohlmey/add-compute-cnp
Integrate compute cnp/atom contributed by Paulo Branicio (USC)
2017-06-15 08:38:05 -06:00
d41c617d1d Merge pull request #509 from akohlmey/add-atomonly-npair-for-omp
add "atomonly" optimized neighbor list build styles to USER-OMP
2017-06-15 08:24:44 -06:00
1ec9e588ff Merge pull request #504 from andeplane/hexorder_fix
Using correct ndegree instead of nnn
2017-06-15 08:24:25 -06:00
3c7417fb59 Merge pull request #497 from lammps/add-user-reaxc-omp
Add USER-OMP compatible OpenMP support to USER-REAXC
2017-06-15 08:24:03 -06:00
34cfc7bd51 Merge pull request #490 from EmileMaras/NEB-Change
added several features to the NEB
2017-06-15 08:23:04 -06:00
c98bb7fa5f Corrected minor bug in utility script 2017-06-15 12:57:44 +01:00
77ca68a2b4 Changed affiliation 2017-06-15 12:52:19 +01:00
06fe703eed add missing mergesort header 2017-06-14 23:22:49 -04:00
8500a197ae whitespace cleanup 2017-06-14 23:13:10 -04:00
1f17e8ebbb remove need for static class member variables in Dump and Irregular
The dump and irregular classes were using qsort() from the C-library
for sorting lists through custom comparison functions, which required
access to additional data, which was passed via static class variables,
i.e. globals. This collides with having multiple LAMMPS instances in
the same address space.

the calls to qsort() are replaced with a custom merge sort, which passes
a void pointer to the comparison functions, which can contain any kind
of desired information, e.g. a class handle or a list
2017-06-14 23:10:53 -04:00
fcc387f232 change ring communication API to no longer require a static variable pointing to 'this' of the caller 2017-06-14 17:01:06 -04:00
e7634a44f4 updated thermo_modify in example 2017-06-14 13:11:54 -04:00
3214d639aa removed unneeded .gitignore 2017-06-14 12:26:52 -04:00
0ad66ecb89 Added compute_scalar to fix_grem for easier output managment, updated example to show use 2017-06-14 12:18:22 -04:00
e139a7fd45 Updated docs for vashishta/gpu 2017-06-14 13:52:03 +02:00
d7646aeeed Fixed opencl error 2017-06-14 12:03:47 +02:00
5f9341813d Removed debug output 2017-06-14 10:57:54 +02:00
8441307185 Removed non-general CUDA-dir in makefile 2017-06-14 10:28:46 +02:00
720af5c360 Added vashishta to OpenCL makefile 2017-06-14 10:27:52 +02:00
eeff0b8633 Added vashishta GPU package for NVidia 2017-06-14 10:24:16 +02:00
32b967ed9c add rigid body overlap warnings to change_box and delete_atoms 2017-06-13 16:26:49 -04:00
3d066283b6 fix compilation, move meam_cleanup to destructor 2017-06-13 19:41:29 +02:00
29e60fa53a Move rho/gamma arrays to fields of MEAM, remove arguments and arrdim macros 2017-06-13 18:39:40 +02:00
11751521e7 remove dead code 2017-06-12 22:49:31 -04:00
7a05d87f7c update USER-TALLY examples 2017-06-12 22:20:36 -04:00
b01143102d refactoring of USER-TALLY computes to handle sparse and hybrid systems
with sparse and hybrid systems, Pair::ev_tally() may not be called on
every processor and thus the computes in USER-TALLY may hang during
reverse communication because of the error->all() call after checking
whether callback from Pair::ev_tally() has been called at least once.
To address this cleanly, a second callback function needs to be added,
which is run during Pair::ev_setup() and will now handle all memory
re-allocation and clearing of accumulators, just like it is done for
regular tallied data.
2017-06-12 22:12:12 -04:00
e530ba46f4 cleanup and bugfix for compute heat/flux/tally
- make heatj a pointer instead of a static array
- fix memory leaks for eatom, stress
- simplify and streamline computation
2017-06-12 21:46:00 -04:00
420db44596 print incompatible pair style warnings in USER-TALLY only on MPI rank 0 2017-06-12 20:05:15 -04:00
cfeb9b5ba5 Merge branch 'collected-small-changes' of github.com:akohlmey/lammps into collected-small-changes 2017-06-12 14:20:50 -04:00
0c805d0b70 correctly skip over point particles and point dipoles when counting extendend particles in fix rigid/small 2017-06-12 14:20:38 -04:00
6b289b0794 change incorrect EINERTIA constant in rigid body integrators from 4.0 to 2.0 (same as in other integrators) 2017-06-12 14:07:40 -04:00
078f2a0a47 Convert/Reindex phir* arrays 2017-06-12 17:41:09 +02:00
bdd908c303 update documentation for USER-MEAMC package and pair style meam/c 2017-06-11 21:54:18 -04:00
b45a95107d remove ambiguous access conflict to fm_exp() in pair style agni/omp after moving fm_exp() to math_special.h 2017-06-11 18:45:40 -04:00
9f852f5f58 Improve C++-ness, eliminate some macros
- fm_exp moved to math_special (exp2 was already there)
- use std::min/max template instead of macros
- use memory->create for dynamic arrays (still 1-indexed with macro)
- remove _ from function names, adjust method visibility
2017-06-11 16:55:41 +02:00
fea28d8028 ensure that allocatable_double_2d types are initialized 2017-06-11 07:29:44 -04:00
afed8bb978 make changes to pass compilation test
- move MEAM class into LAMMPS_NS namespace
- move inclusion of meam.h header to pair_meamc.cpp to reduce namespace pollution
- use forward declaration for MEAM class reference
- make that class reference a pointer and add a destructor
- replace MAX/MIN macros with versions compatible with older compilers
2017-06-11 07:18:13 -04:00
03c93b31d6 Convert to C++, allow multiple instances 2017-06-11 11:29:24 +02:00
d3f31547f9 Reformat code with clang-format (Mozilla style guide) 2017-06-11 11:29:24 +02:00
7c7468ffc2 Change c->cpp for better integration with makefile 2017-06-11 11:29:23 +02:00
bab292b551 Create package USER-MEAMC
Step 1: very literal translation of lib/meam
2017-06-11 11:29:23 +02:00
daa77176ad add restart support to fix deform. only "initial" data is restored and some consistency check performed 2017-06-10 17:28:17 -04:00
8f18c284d3 add crude check to print warning when using compute cnp/atom on multi-type system 2017-06-10 17:08:07 -04:00
06915162b0 whitespace cleanup 2017-06-10 16:56:54 -04:00
a849f35dcd adjust compute cnp/atom to match the documentation. need to skip atoms not in compute group. 2017-06-10 16:55:42 -04:00
4c69bbcf5c apply rigid body check to displace_atoms command 2017-06-10 11:37:54 -04:00
dd44189d1f fix bug in compute orientorder/atom argument parsing 2017-06-10 04:35:11 -04:00
2f6bbcfbbc output detailed multi-thread performance data only with "timer full" 2017-06-09 15:11:40 -04:00
2686b7f830 simplify compatibility check for fix reax/c/bonds with pair styles 2017-06-09 14:39:52 -04:00
d3a863e7af when identifying molecules/clusters fall back to unfiltered coordinates for ghost atoms 2017-06-09 14:35:12 -04:00
64e8000720 expand error message requiring a reax/c derived pair style 2017-06-09 11:42:35 -04:00
c160d0cd5e fix reax/c/species/omp doesn't is not needed anymore 2017-06-09 11:04:11 -04:00
9222278fb5 match reax/c pair style variants against prefix and not full name 2017-06-09 11:00:16 -04:00
bdf03757e6 MAINT: Simplified GPL headers. 2017-06-08 23:20:21 +02:00
c81bc108f9 DOC: Updated dump_modify and dump netcdf documentation. 2017-06-08 23:19:38 +02:00
10d2e7c380 MAINT: DumpNetCDF and DumpNetCDFMPIIO need access to thermo output. 2017-06-08 23:18:54 +02:00
bd83c7c7f9 MAINT: Updated contact data and fixed typos. 2017-06-08 23:02:22 +02:00
d51cee1b82 MAINT: Turned 'global' options into a 'thermo yes'/'thermo no' option that enables dumping of thermo data to the netcdf file (for parallel NetCDF/MPIIO variant). 2017-06-08 22:58:27 +02:00
be476c9e1d MAINT: Turned 'global' options into a 'thermo yes'/'thermo no' option that enables dumping of thermo data to the netcdf file. 2017-06-08 22:43:10 +02:00
0ecdb99885 fix uninitialized data access as reported by @martok in #174 2017-06-08 13:50:17 -04:00
00ce15d043 Remove tpls dir 2017-06-08 10:43:19 -06:00
5c1d17d1c0 Updating Kokkos lib to v2.03.05 2017-06-08 10:42:08 -06:00
afd4f5b0a6 Merge branch 'collected-small-changes' of github.com:akohlmey/lammps into collected-small-changes 2017-06-07 17:37:13 -04:00
31a734b03d sbmask function should be flagged as const indicating no side effects 2017-06-07 17:10:33 -04:00
2e728972e2 make pair styles lj/cut/tip4p/long/omp, lj/long/tip4p/long and lj/long/tip4p/long/omp consistent with the reset of tip4p styles 2017-06-07 17:09:45 -04:00
36c8b26fef BUG: DumpNCMPIIO is now called DumpNetCDFMPIIO 2017-06-07 14:01:36 +02:00
99ef36f440 MAINT: Switched NetCDF from 64BIT_OFFSET to 64BIT_DATA which can handle frames (of unlimited dimension) > 2 GB. This becomes important for system sizes 100 Mio atoms and upwards. 2017-06-07 13:52:33 +02:00
a2edef7c9c local variable fp in pair style eam/cd was shadowing class member. renamed local variable to fptr 2017-06-07 00:23:53 -04:00
1f9504c546 some more bookkeeping updates triggered by the lj/sf style removal 2017-06-06 17:31:45 -04:00
04ebd81ac5 minor whitespace cleanup 2017-06-06 17:26:18 -04:00
5cb56796a2 alias pair style lj/sf to lj/smooth/linear and remove/update related files 2017-06-06 17:26:06 -04:00
0c1b87c8cf Merge branch 'collected-small-changes' of github.com:akohlmey/lammps into collected-small-changes 2017-06-06 16:27:07 -04:00
cd67eaa5f4 update e-mail and affiliation for stefan paquay in USER-MANIFOLD related files 2017-06-06 16:26:57 -04:00
18dee3f78e Added Gaussian bump. Updated e-mail address. 2017-06-06 16:03:09 -04:00
13643e185c Merge branch 'USER-MANIFOLD-gaussian-bump' 2017-06-06 15:47:41 -04:00
06c8e95774 corrected the fix_neb documentation 2017-06-06 14:20:54 +02:00
d437650c77 make certain Domain::box_change is initialized before use 2017-06-06 08:08:10 -04:00
46c5cbae8f update rigid fix documentation for added reinit keyword 2017-06-05 18:04:09 -04:00
deff6c666e add flag "reinit" with args "yes" / "no" to fixes rigid & rigid/small 2017-06-05 17:31:43 -04:00
3a01836325 simplify code for rigid body overlap checks 2017-06-05 16:39:17 -04:00
0034d2db35 apply the rigid body checks to some more example codes 2017-06-05 16:30:30 -04:00
ed50bd2254 Removing unnecessary fences 2017-06-05 13:54:13 -06:00
90ca0852c7 use "body" list via Fix::extract() to correctly identify atoms in bodies 2017-06-05 15:48:23 -04:00
968de8548c apply test for overlap with rigid bodies to set and velocity command 2017-06-05 13:06:53 -04:00
95d6f05a76 add 3 APIs to Modify for checking if atoms overlap with any rigid fixes 2017-06-05 12:41:37 -04:00
ff58ccac28 add clarification to impact of special bonds to manybody potentials 2017-06-04 21:21:32 -04:00
e03cc99467 made the command options more lammps standard style 2017-06-02 23:42:16 +02:00
f59ee5bd62 enable support for dynamic groups in fix planeforce and fix lineforce 2017-06-02 08:45:15 -04:00
af5f19604c remove no longer correct sentence from set command docs 2017-05-31 23:36:39 -04:00
3025996407 Merge branch 'master' into add-user-reaxc-omp
This updates the code base with several required updates from master
2017-05-31 12:53:38 -04:00
d2b6559039 Fixing issue in fix_qeq_reax 2017-05-31 10:52:03 -06:00
3c0cef9927 Merge branch 'fix_domain_pointer' of https://github.com/andeplane/lammps into collected-small-changes 2017-05-31 07:10:16 -04:00
937cf0b996 Bugfix: Kronecker term ignored in spline forces.
The code ignored the kronecker(ktype, 0) or kronecker(ltype, 0)
terms in the contributing terms to NconjtmpI and NconjtmpJ.
The issue was present both in ::bondorder and ::bondorderLJ and
led to energy conservation issues.
It has been fixed by checking for the atom type before entering
the offending calculations and adding clarifying comments.
2017-05-31 12:20:12 +02:00
f57f1efdff Setting lattice to NULL before creating 2017-05-31 00:34:26 -07:00
2b3c124e61 add example input for compute cnp/atom 2017-05-31 00:43:53 -04:00
85e917ae52 integrate compute cnp/atom contributed by Paulo Branicio (USC) 2017-05-31 00:38:44 -04:00
0be2cd3d43 fix bug reported on lammps-users, when not using the first molecule template 2017-05-30 23:58:56 -04:00
066123007c avoid undesired negative forces for high particle velocities in granular models 2017-05-30 21:54:16 -04:00
167a51538e support atom style variables for assigning image flags with the set command 2017-05-30 21:52:32 -04:00
5c6f63d8b4 Merge branch 'fix_adapt_doc_fix' of https://github.com/Pakketeretet2/lammps into collected-small-changes 2017-05-30 17:06:25 -04:00
03ab8d0f48 major neighbor list style whitespace cleanup 2017-05-30 17:04:48 -04:00
75b567a457 add "atomonly" optimized neighbor list build styles to USER-OMP 2017-05-30 16:50:38 -04:00
cace3e3530 Added missing :pre to doc/src/fix_adapt.txt 2017-05-30 16:08:32 -04:00
286d4f2743 Merge pull request #506 from lammps/snap
SNAP changes by Aidan
2017-05-30 13:32:00 -06:00
952b18fc02 Merge pull request #494 from rbberger/small_updates
Collection of minor updates
2017-05-30 10:51:24 -06:00
816fa93429 Merge pull request #499 from akohlmey/add-fix-compute-style-bugfix
Fix bug where fix/compute style names were not correctly set with suffixes
2017-05-30 10:49:27 -06:00
f4f975edd6 Merge pull request #495 from akohlmey/doc-fixes
Collected small updates and bugfixes
2017-05-30 10:48:57 -06:00
cff4e4a837 Merge pull request #468 from andeplane/gcmc_fix_nlocal
Using correct value for atom->nlocal in translate/rotate in fix_gcmc.cpp
2017-05-30 10:45:39 -06:00
32db4660bd Merge pull request #460 from andeplane/gcmc_fix
Setting molecule COM to 0 after moving atoms
2017-05-30 10:45:23 -06:00
22fdb1fc14 SNAP changes by Aidan 2017-05-30 10:21:07 -06:00
412cb8f089 avoid hang in fix reax/c/species when multiple atoms have the exact same x-coordinate 2017-05-30 08:15:55 -04:00
092806ad4f no need for special whitespace handling in library interface 2017-05-30 07:55:48 -04:00
4ae314731d must not use strtok() in library function as it is not re-entrant and may be used inside LAMMPS commands 2017-05-30 07:42:10 -04:00
4b8d2e829c triclinic member variable is referenced in destructor and thus must be initialized in constructor 2017-05-30 07:41:01 -04:00
d93938f7e1 displace_atom rotate needs to operate on unwrapped coordinates with image flags set to zero 2017-05-29 16:57:35 -04:00
c904cfb8bc removed a bug in fix_neb.cpp which prevented the freeend to work properly, plus added an example for the neb freeend 2017-05-29 15:49:04 +02:00
32c87f3131 removed a bug in fix_neb.cpp which prevented the freeend to work properly, plus added an example for the neb freeend 2017-05-29 14:00:13 +02:00
ba0ddea5e1 Using correct ndegree instead of nnn 2017-05-28 15:44:12 -07:00
c0339120d2 add missing neighbor list class definitions to USER-OMP 2017-05-26 21:28:41 -04:00
5a23d2d1da fix bug in computing mixed EAM potentials introduced by TI modifications 2017-05-26 20:28:45 -04:00
de446ace2f Merge branch 'user-manifold-doc-fix' of https://github.com/Pakketeretet2/lammps into doc-fixes 2017-05-26 18:44:29 -04:00
2055110e05 Fixed typo in dox. 2017-05-26 17:38:21 -04:00
5b1e582f03 prevent segfault when defining pair_style comb3 without arguments 2017-05-26 10:52:20 -04:00
f1ec6dc41a dead code removal and reformatting 2017-05-25 18:55:07 -04:00
c3f6e27bfe augment documentation for newly added multi-threaded reax/c styles 2017-05-25 17:00:19 -04:00
0a2fe70511 remove redundant code from fix qeq/reax and qeq/reax/omp 2017-05-25 16:31:31 -04:00
53e7fee5b7 Merge branch 'doc-fixes' of github.com:akohlmey/lammps into doc-fixes 2017-05-25 10:11:31 -04:00
5291f2ed6e fix bug in fix shear/history reported by kevin hanley. see #500 2017-05-25 10:11:24 -04:00
99a68e487f fix suffix style handling bug for adding fixes and computes 2017-05-25 02:01:04 -04:00
271431ab18 clean up code so it can be compiled with and without OpenMP enabled regardless of whether the USER-OMP package is installed 2017-05-24 17:25:57 -04:00
88d4150d2b remove trailing whitespace 2017-05-24 16:29:56 -04:00
0e3cfbc007 remove trailing whitespace 2017-05-24 16:29:26 -04:00
5345ad2da7 merge in the remainder of the USER-REAXC-OMP code. still a lot of work to do. compiles only with -fopenmp active 2017-05-24 16:24:43 -04:00
ead05f81c0 Merge branch 'pair_morse_soft-doc-fix' of https://github.com/Pakketeretet2/lammps into doc-fixes 2017-05-24 13:56:54 -04:00
4f9e7cbd16 Cleaned up docs for pair_mores, a missing :pre ruined formatting. 2017-05-24 13:36:14 -04:00
bb890941ca first chunk of code from USER-REAXC-OMP imported and adapted into USER-REAXC 2017-05-24 00:19:36 -04:00
4002dce639 restore explicit NAN constants in output 2017-05-22 22:39:52 -04:00
c801cdd81f some more formatting cleanup in fix neb 2017-05-22 22:33:14 -04:00
9008a31190 more formatting cleanup
This cleans up and simplifies the neb command code some more
2017-05-22 21:55:55 -04:00
bdfb7c69ea Remove unused code detected by coverity CID 177700 2017-05-22 17:51:40 -04:00
084626e60b Fixes coverity issue CID 179426 2017-05-22 17:36:16 -04:00
a7d790a827 Fixes coverity issue CID 179439 2017-05-22 17:33:47 -04:00
8a630ff4ec Fixes coverity issue CID 179440 2017-05-22 17:32:07 -04:00
617ca4e0c8 Fixes coverity issue CID 179436 2017-05-22 17:30:46 -04:00
62601678cd when growing arrays with reallocate, always check against atom->nmax and not atom->nlocal or else these arrays may be of inconsistent size and communication can lead to data corruption 2017-05-22 17:16:19 -04:00
081910adbc do not try to free null communicators 2017-05-22 17:15:14 -04:00
f73fd0625d rename nall class member to numall to avoid confusion with the common convention nall = atom->nlocal+atom->nghost 2017-05-22 17:14:38 -04:00
06a4f47a4c Merge remote-tracking branch 'upstream/master' into small_updates 2017-05-22 17:14:29 -04:00
7185db98b4 NEBLongRange was incorrectly set to false by default. revert to true. 2017-05-22 17:13:38 -04:00
4780d72809 use '&&' and '||' instead of 'and' and 'or' operators for consistency 2017-05-22 14:42:42 -04:00
3fd91a239f avoid use '&&' and '||' instead of 'and' and 'or' for consistency 2017-05-22 14:41:01 -04:00
8bc829c7f1 change example inputs to be backward compatible 2017-05-22 14:40:01 -04:00
97d3c843c4 small documentation fixes to fix typos and formatting issues 2017-05-21 11:13:47 -04:00
546aed7ccd plug some memory leaks 2017-05-19 16:14:59 -04:00
6ef79d3715 silence several compiler warnings 2017-05-19 15:13:19 -04:00
c2bf3269ac formatting cleanup. combine 8 MPI_Allreduce() calls into 1 2017-05-19 15:02:29 -04:00
aca16745e4 restore spelling fix and semantic fix from upstream 2017-05-19 12:17:19 -04:00
a5110d81ea correct a bunch of documentation formatting issues for updated neb and fix neb commands 2017-05-19 12:13:23 -04:00
2225fce94e patch 19May17 2017-05-19 07:35:36 -06:00
9593e05c9e Force PDF documentation build to fail on first error 2017-05-18 19:37:08 -04:00
941b737319 Merge pull request #493 from akohlmey/doc-and-example-fixes
Doc and example fixes
2017-05-18 16:40:46 -06:00
654e09e999 correct input examples affected by the Pair::settings() bugfix 2017-05-18 18:34:27 -04:00
8751850eca a few formatting fixes for pair style python 2017-05-18 18:34:03 -04:00
0f88348917 Merge pull request #492 from lammps/pre-patch
update docs before patch release
2017-05-18 13:44:34 -06:00
d4ee03c778 changed doc links 2017-05-18 21:31:39 +02:00
069f3e746b small formating changes 2017-05-18 21:23:29 +02:00
b28ecd44c2 update docs before patch release 2017-05-18 13:14:47 -06:00
9db9fc9de3 Merge pull request #491 from akohlmey/fix-bigint-thermo-in-variables-bug
convert bigint values for bonds/angles/dihedrals/impropers to doubles
2017-05-18 13:08:42 -06:00
6ac9b7a1b0 Merge pull request #482 from akohlmey/add-pair-python
Add python pair style for implementing simple pairwise additive potentials in python
2017-05-18 11:15:58 -06:00
34dbf6b225 do not compute properties twice 2017-05-18 12:45:43 -04:00
26d71b66e4 convert bigint values for bonds/angles/dihedrals/impropers to doubles when evaluating those keywords in variable expressions 2017-05-18 12:41:48 -04:00
65eacb6b90 Fix compilation warnings in fix_python 2017-05-18 12:20:39 -04:00
cb3344a337 Merge pull request #489 from akohlmey/thread-safe-biasing
port thread-safe temperature biasing from LAMMPS-ICMS
2017-05-18 09:15:07 -06:00
5d38cbbce9 Merge pull request #487 from akohlmey/pair_edip_multi_element
Import multi-element compatible pair style edip as edip/multi
2017-05-18 09:13:30 -06:00
30babd8157 Merge pull request #485 from akohlmey/pair_settings_cut_bugfix
Bugfix for correct resetting of previously set cutoffs to various Pair::settings() functions
2017-05-18 09:12:47 -06:00
aa09f45b7e Merge pull request #484 from akohlmey/add-gao-weber-styles
Add Gao-Weber manybody styles
2017-05-18 09:10:03 -06:00
4b61cf6f52 Merge pull request #483 from akohlmey/airebo-spline-bugfix-refactor
AIREBO spline code out-of-bounds and bondorder derivative bugfix and refactor
2017-05-18 09:01:33 -06:00
683f3d9d2a Merge pull request #481 from akohlmey/collected-small-changes
Collected small updates and bugfixes
2017-05-18 09:01:04 -06:00
ce18524251 Merge pull request #480 from akohlmey/pair_morse_smooth_linear_bugfix
corrections to pair style morse/smooth/linear
2017-05-18 08:57:24 -06:00
95dae9737b Merge pull request #488 from lammps/neigh_occasional_bugfix
bugfix for 2 recenty reported neighbor issues, also a ReaxFF fix species update from Stan
2017-05-18 08:53:54 -06:00
8daba01151 some small formating change but does not work anymore 2017-05-18 16:48:20 +02:00
640edbc1d4 added several features to the NEB 2017-05-18 11:08:08 +02:00
4b1914aa1f update citations for multi-element edip potential 2017-05-18 01:07:52 -04:00
bd11479a16 lock the sphinx command to version 1.5.6, since version 1.6.x seems to break one of the extensions we use 2017-05-18 00:50:35 -04:00
0208fe9996 update example outputs 2017-05-18 00:46:49 -04:00
24654ad28f small formatting corrections to pair python style 2017-05-18 00:38:36 -04:00
8d46aa6056 add readme file to discuss various python pair style usage examples 2017-05-18 00:31:54 -04:00
09f3b687f7 new long-rance example with using hybrid/overlay and table only for lj part 2017-05-18 00:31:15 -04:00
436d3fd761 make hybrid example use half the atoms with python, half with lj/cut 2017-05-18 00:30:41 -04:00
9833f38499 change coulomb example to use cutoff coulomb 2017-05-18 00:30:19 -04:00
9725708b90 update pair style python docs 2017-05-18 00:29:02 -04:00
67962b15fc a bunch refactoring changes in the python pair style and the examples
- make all python potential classes derived from LAMMPSPairPotential
  which contains shared functionality. We currently don't check
  for supported atom types. may want to add that again later.
- keep track of skipped atom types in the C++ code.
- add test against units setting. must set self.units='...' in constructor
- make compute_force method consistent with Pair::single() in LAMMPS and return force/r instead of force.
- rename potentials.py to py_pot.py
- update test runs. some small tweaks.
2017-05-17 20:55:48 -04:00
1d48f287f0 add partial documentation for pair style python 2017-05-17 19:05:18 -04:00
43efe9e417 adding Pair::single() support to python pair style and examples
with the single function, python pair styles can be massively
sped up and made compatible to accelerators, as one can translate
the analytic force and energy functions through LAMMPS into suitable
tables and then simply use the on-the-fly tables for production runs
2017-05-17 17:20:56 -04:00
278b9f7fba move pair gw and gw/zbl to USER-MISC package 2017-05-17 14:59:46 -04:00
085f3afdfb fix typo in docs 2017-05-17 09:59:30 -04:00
45becfb235 correct author attributions 2017-05-17 09:59:01 -04:00
a34c935e20 update log files in python pair style example 2017-05-17 08:00:21 -04:00
13e16dc3f1 update log files for pair style python examples 2017-05-17 07:52:13 -04:00
96f0a82aa5 simplify class names in pair style python examples. add SPC/E water example 2017-05-17 07:48:15 -04:00
7caf6cf459 Change how a Python pair style is loaded
Implements a class loader which takes a fully qualified Python class
name, loads the module and creates an object instance.

To add flexibility, the current working directory and the
directory specified by the LAMMPS_POTENTIALS environment variable are
added to the module search path.
2017-05-16 23:29:48 -04:00
8936b99e9f add contributed SiC.edip potential file 2017-05-16 18:15:53 -04:00
d2810f9f83 port thread-safe temperature biasing from LAMMPS-ICMS 2017-05-16 18:15:13 -04:00
597f95fb1b fix duplicate reference 2017-05-16 17:53:12 -04:00
7f9a331c73 bugfix for 2 recenty reported neighbor issues, also a ReaxFF fix species issue 2017-05-16 15:51:41 -06:00
35e92733e9 import multi-element compatible pair style edip as edip/multi 2017-05-16 17:40:59 -04:00
c11e87618b implement second bugfix suggestion from @CF17 on issue #59 2017-05-16 14:18:56 -04:00
ca87e57129 improved version of AIREBO splines based on a suggestion by markus hoehnerbach 2017-05-16 11:58:34 -04:00
66084ad1f4 fix typo in rerun docs. closes #486 2017-05-16 04:27:15 -04:00
d807ba1974 whitespace cleanup 2017-05-16 00:26:39 -04:00
51fc386e72 correct the inner loop range for resetting cutoffs when redefining a pair style
this was reported by frank uhlig on lammps-users for lj/cut, but it applies to many more pair styles
2017-05-16 00:26:18 -04:00
a6f0d700f1 Merge branch 'add-pair-python' of github.com:akohlmey/lammps into add-pair-python 2017-05-15 18:44:52 -04:00
14f3deed6b Minor coefficient lookup improvement 2017-05-15 18:43:46 -04:00
d66a696a84 avoid preprocessor warnings, by placing Python.h include file on the top, as suggested by python docs 2017-05-15 18:02:02 -04:00
69ccbd1562 Extract common wrappers to Python compatibility header 2017-05-15 17:46:57 -04:00
d9d4ef17c8 add gao-weber potentials (regular and with ZBL core) with SiC potential files
NOTE: documentation is missing
2017-05-15 17:44:25 -04:00
93cc6f4a5d Use in syntax for key lookup for Python 3 compatibility 2017-05-15 17:34:48 -04:00
0a40a7af7b whitespace cleanup 2017-05-15 17:00:41 -04:00
eb6f6a77e5 dead code removal 2017-05-15 16:16:12 -04:00
fb7164a811 replace pow(x,-0.5) with 1.0/sqrt(x) 2017-05-15 16:16:01 -04:00
64cf52d3b5 address spline out-of-bounds bug reported in issue #59 and refactor high-level spline code for consistency and efficiency 2017-05-15 15:55:15 -04:00
6a1f7e61f2 provide reference output for python pair style inputs 2017-05-15 00:25:11 -04:00
d662f5d429 whitspace cleanup and gitignore update 2017-05-15 00:22:22 -04:00
df55a90ef6 some example input file tweaks 2017-05-15 00:22:03 -04:00
6e113c1eaf basic feature complete version of lj melt example with python interaction function 2017-05-15 00:15:41 -04:00
f484ab6dfb completed lj parameter set and compute functions for melt example 2017-05-15 00:14:36 -04:00
86283c6309 make melt input consistent with melt example again 2017-05-15 00:13:32 -04:00
34cc3946b8 first few pieces of pair style python 2017-05-14 18:29:06 -04:00
6aa0250bc5 corrections to pair style morse/smooth/linear contributed by David R. Heine 2017-05-12 23:40:24 -04:00
c5db3ff401 two small doc corrections from Andrew Jewett for pair style gauss and dihedral style spherical 2017-05-12 23:27:58 -04:00
06c151421c Merge pull request #478 from akohlmey/add-python-source-cmd
Add python support features
2017-05-12 13:28:20 -06:00
0008b6fc2d Merge pull request #477 from lammps/renamings
rename some USER/misc dirs
2017-05-12 08:54:12 -06:00
b6a70ec6fd fixup docs after last change 2017-05-12 00:34:47 -04:00
c4d0f07093 Allow fix python to only execute every N steps 2017-05-12 00:29:58 -04:00
93f6033061 Add documentation about fix python 2017-05-11 23:50:40 -04:00
110bb79b14 Implement fix python mentioned in issue #454
Allows to call a python function at defined points in the integration loop
2017-05-11 23:50:30 -04:00
d84f8898b7 implement functions to execute arbitrary python code from strings or files and recast the python source keyword through using them. 2017-05-11 22:39:08 -04:00
27a6371f9b implement a python source command as suggested in issue #454 2017-05-11 19:18:09 -04:00
7c3b8e014c rename some USER/misc dirs 2017-05-11 10:15:28 -06:00
a069d21621 Merge pull request #476 from akohlmey/dump_custom_bugfix
dump custom memory allocation bugfix
2017-05-11 09:27:08 -06:00
d7f54464c6 Merge pull request #474 from rbberger/dump_vtk_fixes
Various dump vtk fixes
2017-05-11 09:25:42 -06:00
998eb44e83 Merge pull request #473 from akohlmey/compress-for-reaxc-fixes
compressed output via gzip for some ReaxFF fixes
2017-05-11 09:25:18 -06:00
96d1de8575 Merge pull request #471 from akohlmey/fix-4may2017-issues
Fix a bunch of remaining issues in the 4 may 2017 release
2017-05-11 09:24:35 -06:00
deff6ffaac Merge pull request #466 from DallasTrinkle/meam-spline-multicomponent
Meam spline multicomponent
2017-05-11 09:22:25 -06:00
328ef873d8 fix mixed memory alloc bug in dump custom. this closes #475 2017-05-10 22:41:41 -04:00
4ecf876a64 Added two examples of using the VTK dump style 2017-05-10 19:52:00 -04:00
c4ac5773cb Fix segmentation fault in dump vtk 2017-05-10 19:51:14 -04:00
cac1bf83ef Work around VTK 7 API change 2017-05-10 19:41:48 -04:00
abeb1e096a add support for gzip compressed output to fix reax/bonds, reax/c/bonds and reax/c/species 2017-05-10 11:19:18 -04:00
9f7ce39f9f correct some more omitted updates 2017-05-09 18:14:34 -04:00
29ae8d4ca3 correct broken links and references in documentation 2017-05-09 17:15:07 -04:00
3f4aee1046 implement overlooked changes from 4may2017 patch 2017-05-09 15:57:35 -04:00
d0da0639f0 add a couple of simple example single/multi-elment inputs for meam/spline pair styles 2017-05-09 15:51:59 -04:00
390ceb1475 whitespace cleanup 2017-05-09 15:49:37 -04:00
6c5edf6c70 performance improvement through avoiding function call and dereference overhead
- make i_to_potl() and ij_to_potl() functions inline and const
- don't dereference inside the functions, but cache, if possible in external variables
=> up to 15% speedup.
2017-05-09 15:38:10 -04:00
9cd994f57c fix issues with potential file parser
- use Force::open_potential()
- replace ftell()/fseek() with rewind()/fgets() which is safer on windows and other platforms with automatic CR/LF to LF conversion on text files
- make parser use properly NULL terminated strings through using strtok()
2017-05-09 15:35:48 -04:00
a6e2d5b5f7 Merge pull request #470 from lammps/integration
neighbor list bugfix to prevent cycle in copy lists
2017-05-09 10:32:25 -06:00
08ec55743e neighbor list bugfix to prevent cycle in copy lists 2017-05-09 08:55:18 -06:00
c4f90b3841 Merge pull request #449 from rbberger/python_refactoring
Add Python 3 compatibility and expand Python interface availability
2017-05-08 08:29:24 -06:00
f8af7edf92 Merge remote-tracking branch 'upstream/master' into python_refactoring 2017-05-06 16:00:22 -04:00
a73402ad93 update src/Purge.list with renamed reaxc src files 2017-05-04 14:53:08 -06:00
d7dbff0f54 jive Kokkos/reaxc file names with new user-reaxc file names 2017-05-04 14:46:59 -06:00
42531389df Cleanup of style (removing all tabs, shortened long lines). 2017-05-04 15:28:11 -05:00
f7230006fe OpenMP version added. 2017-05-04 15:08:04 -05:00
754b40cb31 Removed unused functions. 2017-05-04 13:16:46 -05:00
ffdc8b556d Cleanup. 2017-05-04 13:03:09 -05:00
5accce976a Cleanup. 2017-05-04 13:02:09 -05:00
349c1443a1 Cleanup. 2017-05-04 13:01:45 -05:00
2f71245d82 Removed extra "helper" functions. 2017-05-04 13:00:06 -05:00
480727815a Starting to refactor in preparation to contruct OMP version. 2017-05-04 11:27:55 -05:00
45187a0fc7 Fix system header #include style. 2017-05-04 11:05:50 -05:00
7409c6d781 Cleaned up atom->x and atom->f deferences. 2017-05-03 16:56:07 -05:00
11cb0212b7 Cleanup: two space indent + no trailing spaces on lines. 2017-05-03 16:49:43 -05:00
7adc7f02e0 Stopped working on gaussian bump. 2017-05-03 11:21:18 -04:00
50c7234f26 Fix to communication for mpi. Tested, and now working correctly with MPI. 2017-05-02 09:43:57 -05:00
f58fc9488f Fixed neighbor list building that caused error in parallel runs with pair_meam_spline. 2017-05-01 21:56:19 -05:00
408cc19885 Fix for seg fault. 2017-05-01 20:36:09 -05:00
c76d27373e Another fix for seg fault in parallel allocation. 2017-05-01 20:33:07 -05:00
fb08dc09f3 Small error in elements allocation causing seg. fault for parallel runs; fixed. 2017-05-01 13:38:37 -05:00
914848433a Using correct value for atom->nlocal 2017-05-01 00:02:57 +02:00
8bddf105bf Updated version of equations, documentation. 2017-04-28 20:22:22 -05:00
31446e35b9 Cleanup on equations; JPG to be constructed. 2017-04-28 15:31:49 -05:00
9bdc43bb66 Updates to pair/meam/spline documentation. 2017-04-28 15:15:21 -05:00
a0b61d17b5 Updates to documentation: equation. 2017-04-28 15:08:59 -05:00
8cc8441367 Cleanup on pair_meam_spline.cpp 2017-04-28 14:53:25 -05:00
7d9670bc6c Addition of potential, code modifications to incorporate multicomponent spline MEAM in pair_meam_spline.
Backwards compatible with previous version of pair_meam_spline.
2017-04-28 14:48:34 -05:00
67fced37c8 Setting molecule COM to 0 after moving atoms 2017-04-26 20:10:18 +02:00
2e1f8b4aef make Python::init() method public and remove the now redundant Python::request() method 2017-04-25 10:21:02 -04:00
958f05a6f3 Allow requesting Python interpreter without having to define a function just for that 2017-04-25 01:09:05 -04:00
c9bc141335 remove doc text explaining restrictions that are lifted with the changes in this branch 2017-04-14 12:57:35 -04:00
3cbf4f3b58 correct logic bug in else branch of the conditional 2017-04-14 11:57:53 -04:00
6c2dd7ebb1 pass the name of the python interpreter compatible with the python package to 'make install-python' 2017-04-14 11:44:36 -04:00
d3187b22c4 restore lost change to PYTHON/Install.sh 2017-04-13 18:11:57 -04:00
e6f30ebc9c Merge remote-tracking branch 'origin/master' into python_refactoring 2017-04-12 20:26:57 -04:00
3fa9f0a27b Delete python_wrapper.h 2017-04-11 21:51:21 -04:00
05d7bc556f Initialize Python interpreter in PythonImpl constructor 2017-04-11 21:46:33 -04:00
2d8bce78a6 Refactor PYTHON package and wrapper classes 2017-04-11 21:22:30 -04:00
9a027a01da Add Python 3 compatibility to PYTHON package 2017-04-11 20:24:42 -04:00
8f37285b05 UPLOAD examples 2017-03-16 21:12:10 +09:00
ef72145540 Readme for examples 2017-03-16 21:10:41 +09:00
d17d99b9dd UPLOAD Formulas for EES 2017-03-13 22:54:09 +09:00
68b2a454b5 UPLOAD fix_wall_ees_image 2017-03-13 22:53:10 +09:00
23c3f5622a DOC files for USER-EES
txt doc files for fix_wall_ees and fix_wall_region_ees added.
2017-03-13 22:51:15 +09:00
6311d33a5d UPLOAD source files
source files and install.sh added
2017-03-13 22:49:04 +09:00
e136a9db02 Create README 2017-03-13 22:48:12 +09:00
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# Contributing to LAMMPS via GitHub
Thank your for considering to contribute to the LAMMPS software project.
The following is a set of guidelines as well as explanations of policies and workflows for contributing to the LAMMPS molecular dynamics software project. These guidelines focus on submitting issues or pull requests on the LAMMPS GitHub project.
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)
## Table of Contents
[I don't want to read this whole thing, I just have a question!](#i-dont-want-to-read-this-whole-thing-i-just-have-a-question)
[How Can I Contribute?](#how-can-i-contribute)
* [Discussing How To Use LAMMPS](#discussing-how-to-use-lammps)
* [Reporting Bugs](#reporting-bugs)
* [Suggesting Enhancements](#suggesting-enhancements)
* [Contributing Code](#contributing-code)
[GitHub Workflows](#github-workflows)
* [Issues](#issues)
* [Pull Requests](#pull-requests)
__
## I don't want to read this whole thing I just have a question!
> **Note:** Please do not file an issue to ask a general question about LAMMPS, its features, how to use specific commands, or how perform simulations or analysis in LAMMPS. Instead post your question to the ['lammps-users' mailing list](http://lammps.sandia.gov/mail.html). You do not need to be subscribed to post to the list (but a mailing list subscription avoids having your post delayed until it is approved by a mailing list moderator). Most posts to the mailing list receive a response within less than 24 hours. Before posting to the mailing list, please read the [mailing list guidelines](http://lammps.sandia.gov/guidelines.html). Following those guidelines will help greatly to get a helpful response. Always mention which LAMMPS version you are using.
## How Can I Contribute?
There are several ways how you can actively contribute to the LAMMPS project: you can discuss compiling and using LAMMPS, and solving LAMMPS related problems with other LAMMPS users on the lammps-users mailing list, you can report bugs or suggest enhancements by creating issues on GitHub (or posting them to the lammps-users mailing list), and you can contribute by submitting pull requests on GitHub or e-mail your code
to one of the [LAMMPS core developers](http://lammps.sandia.gov/authors.html). As you may see from the aforementioned developer page, the LAMMPS software package includes the efforts of a very large number of contributors beyond the principal authors and maintainers.
### Discussing How To Use LAMMPS
The LAMMPS mailing list is hosted at SourceForge. The mailing list began in 2005, and now includes tens of thousands of messages in thousands of threads. LAMMPS developers try to respond to posted questions in a timely manner, but there are no guarantees. Please consider that people live in different timezone and may not have time to answer e-mails outside of their work hours.
You can post to list by sending your email to lammps-users at lists.sourceforge.net (no subscription required), but before posting, please read the [mailing list guidelines](http://lammps.sandia.gov/guidelines.html) to maximize your chances to receive a helpful response.
Anyone can browse/search previous questions/answers in the archives. You do not have to subscribe to the list to post questions, receive answers (to your questions), or browse/search the archives. You **do** need to subscribe to the list if you want emails for **all** the posts (as individual messages or in digest form), or to answer questions yourself. Feel free to sign up and help us out! Answering questions from fellow LAMMPS users is a great way to pay back the community for providing you a useful tool for free, and to pass on the advice you have received yourself to others. It improves your karma and helps you understand your own research better.
If you post a message and you are a subscriber, your message will appear immediately. If you are not a subscriber, your message will be moderated, which typically takes one business day. Either way, when someone replies the reply will usually be sent to both, your personal email address and the mailing list. When replying to people, that responded to your post to the list, please always included the mailing list in your replies (i.e. use "Reply All" and **not** "Reply"). Responses will appear on the list in a few minutes, but it can take a few hours for postings and replies to show up in the SourceForge archive. Sending replies also to the mailing list is important, so that responses are archived and people with a similar issue can search for possible solutions in the mailing list archive.
### Reporting Bugs
While developers writing code for LAMMPS are careful to test their code, LAMMPS is such a large and complex software, that it is impossible to test for all combinations of features under all normal and not so normal circumstances. Thus bugs do happen, and if you suspect, that you have encountered one, please try to document it and report it as an [Issue](https://github.com/lammps/lammps/issues) on the LAMMPS GitHub project web page. However, before reporting a bug, you need to check whether this is something that may have already been corrected. The [Latest Features and Bug Fixes in LAMMPS](http://lammps.sandia.gov/bug.html) web page lists all significant changes to LAMMPS over the years. It also tells you what the current latest development version of LAMMPS is, and you should test whether your issue still applies to that version.
When you click on the green "New Issue" button, you will be provided with a text field, where you can enter your message. That text field with contain a template with several headlines and some descriptions. Keep the headlines that are relevant to your reported potential bug and replace the descriptions with the information as suggested by the descriptions.
You can also attach small text files (please add the file name extension `.txt` or it will be rejected), images, or small compressed text files (using gzip, do not use RAR or 7-ZIP or similar tools that are uncommon outside of Windows machines). In many cases, bugs are best illustrated by providing a small input deck (do **not** attach your entire production input, but remove everything that is not required to reproduce the issue, and scale down your system size, that the resulting calculation runs fast and can be run on small desktop quickly).
To be able to submit an issue on GitHub, you have to register for an account (for GitHub in general). If you do not want to do that, or have other reservations against submitting an issue there, you can - as an alternative and in decreasing preference - either send an e-mail to the lammps-users mailing list, the original authors of the feature that you suspect to be affected, or one or more of the core LAMMPS developers.
### Suggesting Enhancements
The LAMMPS developers welcome suggestions for enhancements or new features. These should be submitted using the [GitHub Issue Tracker](https://github.com/lammps/lammps/issues) of the LAMMPS project. This is particularly recommended, when you plan to implement the feature or enhancement yourself, as this allows to coordinate in case there are other similar or conflicting ongoing developments.
The LAMMPS developers will review your submission and consider implementing it. Whether this will actually happen depends on many factors: how difficult it would be, how much effort it would take, how many users would benefit from it, how well the individual developer would understand the underlying physics of the feature, and whether this is a feature that would fit into a software like LAMMPS, or would be better implemented as a separate tool. Because of these factors, it matters how well the suggested enhancement is formulated and the overall benefit is argued convincingly.
To be able to submit an issue on GitHub, you have to register for an account (for GitHub in general). If you do not want to do that, or have other reservations against submitting an issue there, you can - as an alternative - send an e-mail to the lammps-users mailing list.
### Contributing Code
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)
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.
* All source files you provide must compile with the most current version of LAMMPS with multiple configurations. In particular you need to test compiling LAMMPS from scratch with `-DLAMMPS_BIGBIG` set in addition to the default `-DLAMMPS_SMALLBIG` setting. Your code will need to work correctly in serial and in parallel using MPI.
* For consistency with the rest of LAMMPS and especially, if you want your contribution(s) to be added to main LAMMPS code or one of its standard packages, it needs to be written in a style compatible with other LAMMPS source files. This means: 2-character indentation per level, no tabs, no lines over 80 characters. I/O is done via the C-style stdio library, class header files should not import any system headers outside <stdio.h>, STL containers should be avoided in headers, and forward declarations used where possible or needed. All added code should be placed into the LAMMPS_NS namespace or a sub-namespace; global or static variables should be avoided, as they conflict with the modular nature of LAMMPS and the C++ class structure. Header files must not import namespaces with using. This all is so the developers can more easily understand, integrate, and maintain your contribution and reduce conflicts with other parts of LAMMPS. This basically means that the code accesses data structures, performs its operations, and is formatted similar to other LAMMPS source files, including the use of the error class for error and warning messages.
* If you want your contribution to be added as a user-contributed feature, and it is a single file (actually a `<name>.cpp` and `<name>.h` file) it can be rapidly added to the USER-MISC directory. Include the one-line entry to add to the USER-MISC/README file in that directory, along with the 2 source files. You can do this multiple times if you wish to contribute several individual features.
* If you want your contribution to be added as a user-contribution and it is several related features, it is probably best to make it a user package directory with a name like USER-FOO. In addition to your new files, the directory should contain a README text file. The README should contain your name and contact information and a brief description of what your new package does. If your files depend on other LAMMPS style files also being installed (e.g. because your file is a derived class from the other LAMMPS class), then an Install.sh file is also needed to check for those dependencies. See other README and Install.sh files in other USER directories as examples. Send us a tarball of this USER-FOO directory.
* Your new source files need to have the LAMMPS copyright, GPL notice, and your name and email address at the top, like other user-contributed LAMMPS source files. They need to create a class that is inside the LAMMPS namespace. If the file is for one of the USER packages, including USER-MISC, then we are not as picky about the coding style (see above). I.e. the files do not need to be in the same stylistic format and syntax as other LAMMPS files, though that would be nice for developers as well as users who try to read your code.
* You **must** also create or extend a documentation file for each new command or style you are adding to LAMMPS. For simplicity and convenience, the documentation of groups of closely related commands or styles may be combined into a single file. This will be one file for a single-file feature. For a package, it might be several files. These are simple text files with a specific markup language, that are then auto-converted to HTML and PDF. The tools for this conversion are included in the source distribution, and the translation can be as simple as doing "make html pdf" in the doc folder. Thus the documentation source files must be in the same format and style as other `<name>.txt` files in the lammps/doc/src directory for similar commands and styles; use one or more of them as a starting point. A description of the markup can also be found in `lammps/doc/utils/txt2html/README.html` As appropriate, the text files can include links to equations (see doc/Eqs/*.tex for examples, we auto-create the associated JPG files), or figures (see doc/JPG for examples), or even additional PDF files with further details (see doc/PDF for examples). The doc page should also include literature citations as appropriate; see the bottom of doc/fix_nh.txt for examples and the earlier part of the same file for how to format the cite itself. The "Restrictions" section of the doc page should indicate that your command is only available if LAMMPS is built with the appropriate USER-MISC or USER-FOO package. See other user package doc files for examples of how to do this. The prerequisite for building the HTML format files are Python 3.x and virtualenv, the requirement for generating the PDF format manual is the htmldoc software. Please run at least "make html" and carefully inspect and proofread the resulting HTML format doc page before submitting your code.
* For a new package (or even a single command) you should include one or more example scripts demonstrating its use. These should run in no more than a couple minutes, even on a single processor, and not require large data files as input. See directories under examples/USER for examples of input scripts other users provided for their packages. These example inputs are also required for validating memory accesses and testing for memory leaks with valgrind
* If there is a paper of yours describing your feature (either the algorithm/science behind the feature itself, or its initial usage, or its implementation in LAMMPS), you can add the citation to the *.cpp source file. See src/USER-EFF/atom_vec_electron.cpp for an example. A LaTeX citation is stored in a variable at the top of the file and a single line of code that references the variable is added to the constructor of the class. Whenever a user invokes your feature from their input script, this will cause LAMMPS to output the citation to a log.cite file and prompt the user to examine the file. Note that you should only use this for a paper you or your group authored. E.g. adding a cite in the code for a paper by Nose and Hoover if you write a fix that implements their integrator is not the intended usage. That kind of citation should just be in the doc page you provide.
Finally, as a general rule-of-thumb, the more clear and self-explanatory you make your documentation and README files, and the easier you make it for people to get started, e.g. by providing example scripts, the more likely it is that users will try out your new feature.
If the new features/files are broadly useful we may add them as core files to LAMMPS or as part of a standard package. Else we will add them as a user-contributed file or package. Examples of user packages are in src sub-directories that start with USER. The USER-MISC package is simply a collection of (mostly) unrelated single files, which is the simplest way to have your contribution quickly added to the LAMMPS distribution. You can see a list of the both standard and user packages by typing "make package" in the LAMMPS src directory.
Note that by providing us files to release, you are agreeing to make them open-source, i.e. we can release them under the terms of the GPL, used as a license for the rest of LAMMPS. See Section 1.4 for details.
With user packages and files, all we are really providing (aside from the fame and fortune that accompanies having your name in the source code and on the Authors page of the LAMMPS WWW site), is a means for you to distribute your work to the LAMMPS user community, and a mechanism for others to easily try out your new feature. This may help you find bugs or make contact with new collaborators. Note that you are also implicitly agreeing to support your code which means answer questions, fix bugs, and maintain it if LAMMPS changes in some way that breaks it (an unusual event).
To be able to submit an issue on GitHub, you have to register for an account (for GitHub in general). If you do not want to do that, or have other reservations or difficulties to submit a pull request, you can - as an alternative - contact one or more of the core LAMMPS developers and ask if one of them would be interested in manually merging your code into LAMMPS and send them your source code. Since the effort to merge a pull request is a small fraction of the effort of integrating source code manually (which would usually be done by converting the contribution into a pull request), your chances to have your new code included quickly are the best with a pull request.
If you prefer to submit patches or full files, you should first make certain, that your code works correctly with the latest patch-level version of LAMMPS and contains all bug fixes from it. Then create a gzipped tar file of all changed or added files or a corresponding patch file using 'diff -u' or 'diff -c' and compress it with gzip. Please only use gzip compression, as this works well on all platforms.
## GitHub Workflows
This section briefly summarizes the steps that will happen **after** you have submitted either an issue or a pull request on the LAMMPS GitHub project page.
### Issues
After submitting an issue, one or more of the LAMMPS developers will review it and categorize it by assigning labels. Confirmed bug reports will be labeled `bug`; if the bug report also contains a suggestion for how to fix it, it will be labeled `bugfix`; if the issue is a feature request, it will be labeled `enhancement`. Other labels may be attached as well, depending on which parts of the LAMMPS code are affected. If the assessment is, that the issue does not warrant any changes, the `wontfix` label will be applied and if the submission is incorrect or something that should not be submitted as an issue, the `invalid` label will be applied. In both of the last two cases, the issue will then be closed without further action.
For feature requests, what happens next is that developers may comment on the viability or relevance of the request, discuss and make suggestions for how to implement it. If a LAMMPS developer or user is planning to implement the feature, the issue will be assigned to that developer. For developers, that are not yet listed as LAMMPS project collaborators, they will receive an invitation to be added to the LAMMPS project as a collaborator so they can get assigned. If the requested feature or enhancement is implemented, it will usually be submitted as a pull request, which will contain a reference to the issue number. And once the pull request is reviewed and accepted for inclusion into LAMMPS, the issue will be closed. For details on how pull requests are processed, please see below.
For bug reports, the next step is that one of the core LAMMPS developers will self-assign to the issue and try to confirm the bug. If confirmed, the `bug` label and potentially other labels are added to classify the issue and its impact to LAMMPS. Before confirming, further questions may be asked or requests for providing additional input files or details about the steps required to reproduce the issue. Any bugfix is likely to be submitted as a pull request (more about that below) and since most bugs require only local changes, the bugfix may be included in a pull request specifically set up to collect such local bugfixes or small enhancements. Once the bugfix is included in the master branch, the issue will be closed.
### 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.
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.

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## Summary
_Please provide a brief description of the issue_
## Type of Issue
_Is this a 'Bug Report' or a 'Suggestion for an Enhancement'?_
## Detailed Description (Enhancement Suggestion)
_Explain how you would like to see LAMMPS enhanced, what feature(s) you are looking for, provide references to relevant background information, and whether you are willing to implement the enhancement yourself or would like to participate in the implementation_
## LAMMPS Version (Bug Report)
_Please specify which LAMMPS version this issue was detected with. If this is not the latest development version, please stop and test that version, too, and report it here if the bug persists_
## Expected Behavior (Bug Report)
_Describe the expected behavior. Quote from the LAMMPS manual where needed or explain why the expected behavior is meaningful, especially when it differs from the manual_
## Actual Behavior (Bug Report)
_Describe the actual behavior, how it differs from the expected behavior, and how this can be observed. Try to be specific and do **not* use vague terms like "doesn't work" or "wrong result". Do not assume that the person reading this has any experience with or knowledge of your specific research._
## Steps to Reproduce (Bug Report)
_Describe the steps required to quickly reproduce the issue. You can attach (small) files to the section below or add URLs where to download an archive with all necessary files. Please try to create input that are as small as possible and run as fast as possible. NOTE: the less effort and time it takes to reproduce your issue, the more likely, that somebody will look into it._
## Further Information, Files, and Links
_Put any additional information here, attach relevant text or image files and URLs to external sites, e.g. relevant publications_

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## Purpose
_Briefly describe the new feature(s), enhancement(s), or bugfix(es) included in this pull request. If this addresses an open GitHub Issue, mention the issue number, e.g. with `fixes #221` or `closes #135`, so that issue will be automatically closed when the pull request is merged_
## Author(s)
_Please state name and affiliation of the author or authors that should be credited with the changes in this pull request_
## Backward Compatibility
_Please state whether any changes in the pull request break backward compatibility for inputs, and - if yes - explain what has been changed and why_
## Implementation Notes
_Provide any relevant details about how the changes are implemented, how correctness was verified, how other features - if any - in LAMMPS are affected_
## Post Submission Checklist
_Please check the fields below as they are completed_
- [ ] The feature or features in this pull request is complete
- [ ] Suitable new documentation files and/or updates to the existing docs are included
- [ ] One or more example input decks are included
- [ ] The source code follows the LAMMPS formatting guidelines
## Further Information, Files, and Links
_Put any additional information here, attach relevant text or image files, and URLs to external sites (e.g. DOIs or webpages)_

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Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.

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These are input scripts used to run versions of several of the
benchmarks in the top-level bench directory using the GPU and
USER-CUDA accelerator packages. The results of running these scripts
on two different machines (a desktop with 2 Tesla GPUs and the ORNL
Titan supercomputer) are shown on the "GPU (Fermi)" section of the
Benchmark page of the LAMMPS WWW site: lammps.sandia.gov/bench.
benchmarks in the top-level bench directory using the GPU accelerator
package. The results of running these scripts on two different machines
(a desktop with 2 Tesla GPUs and the ORNL Titan supercomputer) are shown
on the "GPU (Fermi)" section of the Benchmark page of the LAMMPS WWW
site: lammps.sandia.gov/bench.
Examples are shown below of how to run these scripts. This assumes
you have built 3 executables with both the GPU and USER-CUDA packages
you have built 3 executables with the GPU package
installed, e.g.
lmp_linux_single
lmp_linux_mixed
lmp_linux_double
The precision (single, mixed, double) refers to the GPU and USER-CUDA
package precision. See the README files in the lib/gpu and lib/cuda
directories for instructions on how to build the packages with
different precisions. The GPU and USER-CUDA sub-sections of the
doc/Section_accelerate.html file also describes this process.
Make.py -d ~/lammps -j 16 -p #all orig -m linux -o cpu -a exe
Make.py -d ~/lammps -j 16 -p #all opt orig -m linux -o opt -a exe
Make.py -d ~/lammps -j 16 -p #all omp orig -m linux -o omp -a exe
Make.py -d ~/lammps -j 16 -p #all gpu orig -m linux \
-gpu mode=double arch=20 -o gpu_double -a libs exe
Make.py -d ~/lammps -j 16 -p #all gpu orig -m linux \
-gpu mode=mixed arch=20 -o gpu_mixed -a libs exe
Make.py -d ~/lammps -j 16 -p #all gpu orig -m linux \
-gpu mode=single arch=20 -o gpu_single -a libs exe
Make.py -d ~/lammps -j 16 -p #all cuda orig -m linux \
-cuda mode=double arch=20 -o cuda_double -a libs exe
Make.py -d ~/lammps -j 16 -p #all cuda orig -m linux \
-cuda mode=mixed arch=20 -o cuda_mixed -a libs exe
Make.py -d ~/lammps -j 16 -p #all cuda orig -m linux \
-cuda mode=single arch=20 -o cuda_single -a libs exe
Make.py -d ~/lammps -j 16 -p #all intel orig -m linux -o intel_cpu -a exe
Make.py -d ~/lammps -j 16 -p #all kokkos orig -m linux -o kokkos_omp -a exe
Make.py -d ~/lammps -j 16 -p #all kokkos orig -kokkos cuda arch=20 \
-m cuda -o kokkos_cuda -a exe
Make.py -d ~/lammps -j 16 -p #all opt omp gpu cuda intel kokkos orig \
-gpu mode=double arch=20 -cuda mode=double arch=20 -m linux \
-o all -a libs exe
Make.py -d ~/lammps -j 16 -p #all opt omp gpu cuda intel kokkos orig \
-kokkos cuda arch=20 -gpu mode=double arch=20 \
-cuda mode=double arch=20 -m cuda -o all_cuda -a libs exe
------------------------------------------------------------------------
To run on just CPUs (without using the GPU or USER-CUDA styles),
To run on just CPUs (without using the GPU styles),
do something like the following:
mpirun -np 1 lmp_linux_double -v x 8 -v y 8 -v z 8 -v t 100 < in.lj
@ -81,23 +47,5 @@ node via a "-ppn" setting.
------------------------------------------------------------------------
To run with the USER-CUDA package, do something like the following:
mpirun -np 1 lmp_linux_single -c on -sf cuda -v x 16 -v y 16 -v z 16 -v t 100 < in.lj
mpirun -np 2 lmp_linux_double -c on -sf cuda -pk cuda 2 -v x 32 -v y 64 -v z 64 -v t 100 < in.eam
The "xyz" settings determine the problem size. The "t" setting
determines the number of timesteps. The "np" setting determines how
many MPI tasks (per node) the problem will run on. The numeric
argument to the "-pk" setting is the number of GPUs (per node); 1 GPU
is the default. Note that the number of MPI tasks must equal the
number of GPUs (both per node) with the USER-CUDA package.
These mpirun commands run on a single node. To run on multiple nodes,
scale up the "-np" setting, and control the number of MPI tasks per
node via a "-ppn" setting.
------------------------------------------------------------------------
If the script has "titan" in its name, it was run on the Titan
supercomputer at ORNL.

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@ -71,49 +71,33 @@ integration
----------------------------------------------------------------------
Here is a src/Make.py command which will perform a parallel build of a
LAMMPS executable "lmp_mpi" with all the packages needed by all the
examples. This assumes you have an MPI installed on your machine so
that "mpicxx" can be used as the wrapper compiler. It also assumes
you have an Intel compiler to use as the base compiler. You can leave
off the "-cc mpi wrap=icc" switch if that is not the case. You can
also leave off the "-fft fftw3" switch if you do not have the FFTW
(v3) installed as an FFT package, in which case the default KISS FFT
library will be used.
cd src
Make.py -j 16 -p none molecule manybody kspace granular rigid orig \
-cc mpi wrap=icc -fft fftw3 -a file mpi
----------------------------------------------------------------------
Here is how to run each problem, assuming the LAMMPS executable is
named lmp_mpi, and you are using the mpirun command to launch parallel
runs:
Serial (one processor runs):
lmp_mpi < in.lj
lmp_mpi < in.chain
lmp_mpi < in.eam
lmp_mpi < in.chute
lmp_mpi < in.rhodo
lmp_mpi -in in.lj
lmp_mpi -in in.chain
lmp_mpi -in in.eam
lmp_mpi -in in.chute
lmp_mpi -in in.rhodo
Parallel fixed-size runs (on 8 procs in this case):
mpirun -np 8 lmp_mpi < in.lj
mpirun -np 8 lmp_mpi < in.chain
mpirun -np 8 lmp_mpi < in.eam
mpirun -np 8 lmp_mpi < in.chute
mpirun -np 8 lmp_mpi < in.rhodo
mpirun -np 8 lmp_mpi -in in.lj
mpirun -np 8 lmp_mpi -in in.chain
mpirun -np 8 lmp_mpi -in in.eam
mpirun -np 8 lmp_mpi -in in.chute
mpirun -np 8 lmp_mpi -in in.rhodo
Parallel scaled-size runs (on 16 procs in this case):
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 < in.lj
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 < in.chain.scaled
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 < in.eam
mpirun -np 16 lmp_mpi -var x 4 -var y 4 < in.chute.scaled
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 < in.rhodo.scaled
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 -in in.lj
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 -in in.chain.scaled
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 -in in.eam
mpirun -np 16 lmp_mpi -var x 4 -var y 4 -in in.chute.scaled
mpirun -np 16 lmp_mpi -var x 2 -var y 2 -var z 4 -in in.rhodo.scaled
For each of the scaled-size runs you must set 3 variables as -var
command line switches. The variables x,y,z are used in the input

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@ -100,6 +100,7 @@ epub: $(OBJECTS)
pdf: utils/txt2html/txt2html.exe
@(\
set -e; \
cd src; \
../utils/txt2html/txt2html.exe -b *.txt; \
htmldoc --batch lammps.book; \
@ -158,7 +159,7 @@ $(VENV):
@( \
virtualenv -p $(PYTHON) $(VENV); \
. $(VENV)/bin/activate; \
pip install Sphinx; \
pip install Sphinx==1.5.6; \
pip install sphinxcontrib-images; \
deactivate;\
)

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@ -0,0 +1,14 @@
\documentclass[12pt,article]{article}
\usepackage{indentfirst}
\usepackage{amsmath}
\begin{document}
\begin{eqnarray*}
r_{c}^{fcc} & = & \frac{1}{2} \left(\frac{\sqrt{2}}{2} + 1\right) \mathrm{a} \simeq 0.8536 \:\mathrm{a} \\
r_{c}^{bcc} & = & \frac{1}{2}(\sqrt{2} + 1) \mathrm{a} \simeq 1.207 \:\mathrm{a} \\
r_{c}^{hcp} & = & \frac{1}{2}\left(1+\sqrt{\frac{4+2x^{2}}{3}}\right) \mathrm{a}
\end{eqnarray*}
\end{document}

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@ -0,0 +1,12 @@
\documentclass[12pt,article]{article}
\usepackage{indentfirst}
\usepackage{amsmath}
\begin{document}
$$
Rc + Rs > 2*{\rm cutoff}
$$
\end{document}

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9
doc/src/Eqs/cnp_eq.tex Normal file
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@ -0,0 +1,9 @@
\documentclass[12pt]{article}
\begin{document}
$$
Q_{i} = \frac{1}{n_i}\sum_{j = 1}^{n_i} | \sum_{k = 1}^{n_{ij}} \vec{R}_{ik} + \vec{R}_{jk} |^2
$$
\end{document}

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@ -0,0 +1,10 @@
\documentclass[12pt]{article}
\begin{document}
$$
E = \epsilon \left[ \frac{2 \sigma_{LJ}^{12} \left(7 r^5+14 r^3 \sigma_{n}^2+3 r \sigma_{n}^4\right) }{945 \left(r^2-\sigma_{n}^2\right)^7} -\frac{ \sigma_{LJ}^6 \left(2 r \sigma_{n}^3+\sigma_{n}^2 \left(r^2-\sigma_{n}^2\right)\log{ \left[\frac{r-\sigma_{n}}{r+\sigma_{n}}\right]}\right) }{12 \sigma_{n}^5 \left(r^2-\sigma_{n}^2\right)} \right]\qquad \sigma_n < r < r_c
$$
\end{document}

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@ -1,11 +0,0 @@
\documentclass[12pt]{article}
\begin{document}
\begin{eqnarray*}
F & = & F_{\mathrm{LJ}}(r) - F_{\mathrm{LJ}}(r_{\mathrm{c}}) \qquad r < r_{\mathrm{c}} \\
E & = & E_{\mathrm{LJ}}(r) - E_{\mathrm{LJ}}(r_{\mathrm{c}}) + (r - r_{\mathrm{c}}) F_{\mathrm{LJ}}(r_{\mathrm{c}}) \qquad r < r_{\mathrm{c}} \\
\mathrm{with} \qquad E_{\mathrm{LJ}}(r) & = & 4 \epsilon \left[ \left(\frac{\sigma}{r}\right)^{12} - \left(\frac{\sigma}{r}\right)^6 \right] \qquad \mathrm{and} \qquad F_{\mathrm{LJ}}(r) = - E^\prime_{\mathrm{LJ}}(r)
\end{eqnarray*}
\end{document}

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@ -1,13 +1,14 @@
\documentclass[12pt]{article}
\usepackage{amsmath}
\begin{document}
$$
E=\sum_{ij}\phi(r_{ij})+\sum_{i}U(\rho_{i}),
E=\sum_{i<j}\phi(r_{ij})+\sum_{i}U(n_{i}),
$$
$$
\rho_{i}=\sum_{j}\rho(r_{ij})+\sum_{jk}f(r_{ij})f(r_{ik})g[\cos(\theta_{jik})]
n_{i}=\sum_{j}\rho(r_{ij})+\sum_{\substack{j<k,\\j,k\neq i}}f(r_{ij})f(r_{ik})g[\cos(\theta_{jik})]
$$
\end{document}

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@ -0,0 +1,14 @@
\documentclass[12pt]{article}
\usepackage{amsmath}
\begin{document}
$$
E=\sum_{i<j}\phi_{ij}(r_{ij})+\sum_{i}U_i(n_{i}),
$$
$$
n_{i}=\sum_{j\ne i}\rho_j(r_{ij})+\sum_{\substack{j<k,\\j,k\neq i}}f_{j}(r_{ij})f_{k}(r_{ik})g_{jk}[\cos(\theta_{jik})]
$$
\end{document}

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@ -1,7 +1,7 @@
<!-- HTML_ONLY -->
<HEAD>
<TITLE>LAMMPS Users Manual</TITLE>
<META NAME="docnumber" CONTENT="4 May 2017 version">
<META NAME="docnumber" CONTENT="24 Jul 2017 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 @@
<H1></H1>
LAMMPS Documentation :c,h3
4 May 2017 version :c,h4
24 Jul 2017 version :c,h4
Version info: :h4
@ -261,7 +261,6 @@ END_RST -->
:link(start_6,Section_start.html#start_6)
:link(start_7,Section_start.html#start_7)
:link(start_8,Section_start.html#start_8)
:link(start_9,Section_start.html#start_9)
:link(cmd_1,Section_commands.html#cmd_1)
:link(cmd_2,Section_commands.html#cmd_2)

View File

@ -56,7 +56,7 @@ timings; you can simply extrapolate from short runs.
For the set of runs, look at the timing data printed to the screen and
log file at the end of each LAMMPS run. "This
section"_Section_start.html#start_8 of the manual has an overview.
section"_Section_start.html#start_7 of the manual has an overview.
Running on one (or a few processors) should give a good estimate of
the serial performance and what portions of the timestep are taking
@ -226,16 +226,16 @@ re-build LAMMPS |
make machine |
prepare and test a regular LAMMPS simulation |
lmp_machine -in in.script; mpirun -np 32 lmp_machine -in in.script |
enable specific accelerator support via '-k on' "command-line switch"_Section_start.html#start_7, |
enable specific accelerator support via '-k on' "command-line switch"_Section_start.html#start_6, |
only needed for KOKKOS package |
set any needed options for the package via "-pk" "command-line switch"_Section_start.html#start_7 or "package"_package.html command, |
set any needed options for the package via "-pk" "command-line switch"_Section_start.html#start_6 or "package"_package.html command, |
only if defaults need to be changed |
use accelerated styles in your input via "-sf" "command-line switch"_Section_start.html#start_7 or "suffix"_suffix.html command | lmp_machine -in in.script -sf gpu
use accelerated styles in your input via "-sf" "command-line switch"_Section_start.html#start_6 or "suffix"_suffix.html command | lmp_machine -in in.script -sf gpu
:tb(c=2,s=|)
Note that the first 4 steps can be done as a single command, using the
src/Make.py tool. This tool is discussed in "Section
2.4"_Section_start.html#start_4 of the manual, and its use is
4"_Section_packages.html of the manual, and its use is
illustrated in the individual accelerator sections. Typically these
steps only need to be done once, to create an executable that uses one
or more accelerator packages.

View File

@ -527,9 +527,9 @@ These are additional commands in USER packages, which can be used if
"LAMMPS is built with the appropriate
package"_Section_start.html#start_3.
"dump custom/vtk"_dump_custom_vtk.html,
"dump nc"_dump_nc.html,
"dump nc/mpiio"_dump_nc.html,
"dump netcdf"_dump_netcdf.html,
"dump netcdf/mpiio"_dump_netcdf.html,
"dump vtk"_dump_vtk.html,
"group2ndx"_group2ndx.html,
"ndx2group"_group2ndx.html,
"temper/grem"_temper_grem.html :tb(c=3,ea=c)
@ -618,6 +618,7 @@ USER-INTEL, k = KOKKOS, o = USER-OMP, t = OPT.
"press/berendsen"_fix_press_berendsen.html,
"print"_fix_print.html,
"property/atom"_fix_property_atom.html,
"python"_fix_python.html,
"qeq/comb (o)"_fix_qeq_comb.html,
"qeq/dynamic"_fix_qeq.html,
"qeq/fire"_fix_qeq.html,
@ -716,7 +717,7 @@ package"_Section_start.html#start_3.
"phonon"_fix_phonon.html,
"pimd"_fix_pimd.html,
"qbmsst"_fix_qbmsst.html,
"qeq/reax"_fix_qeq_reax.html,
"qeq/reax (ko)"_fix_qeq_reax.html,
"qmmm"_fix_qmmm.html,
"qtb"_fix_qtb.html,
"reax/c/bonds"_fix_reax_bonds.html,
@ -733,7 +734,9 @@ package"_Section_start.html#start_3.
"smd/wall/surface"_fix_smd_wall_surface.html,
"temp/rescale/eff"_fix_temp_rescale_eff.html,
"ti/spring"_fix_ti_spring.html,
"ttm/mod"_fix_ttm.html :tb(c=6,ea=c)
"ttm/mod"_fix_ttm.html
"wall/ees"_fix_wall_ees.html
"wall/region/ees"_fix_wall_ees.html :tb(c=6,ea=c)
:line
@ -830,6 +833,7 @@ package"_Section_start.html#start_3.
"ackland/atom"_compute_ackland_atom.html,
"basal/atom"_compute_basal_atom.html,
"cnp/atom"_compute_cnp_atom.html,
"dpd"_compute_dpd.html,
"dpd/atom"_compute_dpd_atom.html,
"fep"_compute_fep.html,
@ -931,6 +935,8 @@ KOKKOS, o = USER-OMP, t = OPT.
"gran/hertz/history (o)"_pair_gran.html,
"gran/hooke (o)"_pair_gran.html,
"gran/hooke/history (o)"_pair_gran.html,
"gw"_pair_gw.html,
"gw/zbl"_pair_gw.html,
"hbond/dreiding/lj (o)"_pair_hbond_dreiding.html,
"hbond/dreiding/morse (o)"_pair_hbond_dreiding.html,
"kim"_pair_kim.html,
@ -960,7 +966,7 @@ KOKKOS, o = USER-OMP, t = OPT.
"lj/expand (gko)"_pair_lj_expand.html,
"lj/gromacs (gko)"_pair_gromacs.html,
"lj/gromacs/coul/gromacs (ko)"_pair_gromacs.html,
"lj/long/coul/long (o)"_pair_lj_long.html,
"lj/long/coul/long (io)"_pair_lj_long.html,
"lj/long/dipole/long"_pair_dipole.html,
"lj/long/tip4p/long"_pair_lj_long.html,
"lj/smooth (o)"_pair_lj_smooth.html,
@ -982,6 +988,7 @@ KOKKOS, o = USER-OMP, t = OPT.
"peri/pmb (o)"_pair_peri.html,
"peri/ves"_pair_peri.html,
"polymorphic"_pair_polymorphic.html,
"python"_pair_python.html,
"reax"_pair_reax.html,
"rebo (o)"_pair_airebo.html,
"resquared (go)"_pair_resquared.html,
@ -1016,6 +1023,7 @@ package"_Section_start.html#start_3.
"dpd/fdt/energy"_pair_dpd_fdt.html,
"eam/cd (o)"_pair_eam.html,
"edip (o)"_pair_edip.html,
"edip/multi"_pair_edip.html,
"eff/cut"_pair_eff.html,
"exp6/rx"_pair_exp6_rx.html,
"gauss/cut"_pair_gauss.html,
@ -1033,7 +1041,7 @@ package"_Section_start.html#start_3.
"lj/sdk (gko)"_pair_sdk.html,
"lj/sdk/coul/long (go)"_pair_sdk.html,
"lj/sdk/coul/msm (o)"_pair_sdk.html,
"lj/sf (o)"_pair_lj_sf.html,
"meam/c"_pair_meam.html,
"meam/spline (o)"_pair_meam_spline.html,
"meam/sw/spline"_pair_meam_sw_spline.html,
"mgpt"_pair_mgpt.html,
@ -1052,7 +1060,7 @@ package"_Section_start.html#start_3.
"oxdna2/excv"_pair_oxdna2.html,
"oxdna2/stk"_pair_oxdna2.html,
"quip"_pair_quip.html,
"reax/c (k)"_pair_reaxc.html,
"reax/c (ko)"_pair_reaxc.html,
"smd/hertz"_pair_smd_hertz.html,
"smd/tlsph"_pair_smd_tlsph.html,
"smd/triangulated/surface"_pair_smd_triangulated_surface.html,
@ -1068,7 +1076,7 @@ package"_Section_start.html#start_3.
"table/rx"_pair_table_rx.html,
"tersoff/table (o)"_pair_tersoff.html,
"thole"_pair_thole.html,
"tip4p/long/soft (o)"_pair_lj_soft.html :tb(c=4,ea=c)
"tip4p/long/soft (o)"_pair_lj_soft.html :tb(c=4,ea=c)
:line
@ -1220,7 +1228,7 @@ USER-OMP, t = OPT.
"msm/cg (o)"_kspace_style.html,
"pppm (go)"_kspace_style.html,
"pppm/cg (o)"_kspace_style.html,
"pppm/disp"_kspace_style.html,
"pppm/disp (i)"_kspace_style.html,
"pppm/disp/tip4p"_kspace_style.html,
"pppm/stagger"_kspace_style.html,
"pppm/tip4p (o)"_kspace_style.html :tb(c=4,ea=c)

View File

@ -71,7 +71,7 @@ style", with ... being fix, compute, pair, etc, it means that you
mistyped the style name or that the command is part of an optional
package which was not compiled into your executable. The list of
available styles in your executable can be listed by using "the -h
command-line argument"_Section_start.html#start_7. The installation
command-line argument"_Section_start.html#start_6. The installation
and compilation of optional packages is explained in the "installation
instructions"_Section_start.html#start_3.
@ -4696,9 +4696,9 @@ Self-explanatory. :dd
{Fix bond/create induced too many angles/dihedrals/impropers per atom} :dt
See the read_data command for info on setting the "extra angle per
atom", etc header values to allow for additional angles, etc to be
formed. :dd
See the read_data command for info on using the "extra/angle/per/atom",
(or dihedral, improper) keywords to allow for additional
angles, dihedrals, and impropers to be formed. :dd
{Fix bond/create needs ghost atoms from further away} :dt
@ -7876,18 +7876,20 @@ See the setting for tagint in the src/lmptype.h file. :dd
{New bond exceeded bonds per atom in create_bonds} :dt
See the read_data command for info on setting the "extra bond per
atom" header value to allow for additional bonds to be formed. :dd
See the read_data command for info on using the "extra/bond/per/atom"
keyword to allow for additional bonds to be formed
{New bond exceeded bonds per atom in fix bond/create} :dt
See the read_data command for info on setting the "extra bond per
atom" header value to allow for additional bonds to be formed. :dd
See the read_data command for info on using the "extra/bond/per/atom"
keyword to allow for additional bonds to be formed :dd
{New bond exceeded special list size in fix bond/create} :dt
See the special_bonds extra command for info on how to leave space in
the special bonds list to allow for additional bonds to be formed. :dd
See the "special_bonds extra" command
(or the "read_data extra/special/per/atom" command)
for info on how to leave space in the special bonds
list to allow for additional bonds to be formed. :dd
{Newton bond change after simulation box is defined} :dt
@ -8890,6 +8892,14 @@ This is a requirement to use this potential. :dd
See the newton command. This is a restriction to use this potential. :dd
{Pair style vashishta/gpu requires atom IDs} :dt
This is a requirement to use this potential. :dd
{Pair style vashishta/gpu requires newton pair off} :dt
See the newton command. This is a restriction to use this potential. :dd
{Pair style tersoff/gpu requires atom IDs} :dt
This is a requirement to use the tersoff/gpu potential. :dd
@ -9656,9 +9666,10 @@ you are running. :dd
{Special list size exceeded in fix bond/create} :dt
See the read_data command for info on setting the "extra special per
atom" header value to allow for additional special values to be
stored. :dd
See the special_bonds extra command
(or the read_data extra/special/per/atom command)
for info on how to leave space in the special bonds
list to allow for additional bonds to be formed. :dd
{Specified processors != physical processors} :dt
@ -9675,23 +9686,23 @@ Self-explanatory. :dd
{Subsequent read data induced too many angles per atom} :dt
See the create_box extra/angle/per/atom or read_data "extra angle per
atom" header value to set this limit larger. :dd
See the extra/angle/per/atom keyword for the create_box
or the read_data command to set this limit larger :dd
{Subsequent read data induced too many bonds per atom} :dt
See the create_box extra/bond/per/atom or read_data "extra bond per
atom" header value to set this limit larger. :dd
See the extra/bond/per/atom keyword for the create_box
or the read_data command to set this limit larger :dd
{Subsequent read data induced too many dihedrals per atom} :dt
See the create_box extra/dihedral/per/atom or read_data "extra
dihedral per atom" header value to set this limit larger. :dd
See the extra/dihedral/per/atom keyword for the create_box
or the read_data command to set this limit larger :dd
{Subsequent read data induced too many impropers per atom} :dt
See the create_box extra/improper/per/atom or read_data "extra
improper per atom" header value to set this limit larger. :dd
See the extra/improper/per/atom keyword for the create_box
or the read_data command to set this limit larger :dd
{Substitution for illegal variable} :dt

View File

@ -54,7 +54,7 @@ restart files can be saved to disk using the "restart"_restart.html
command. At a later time, these binary files can be read via a
"read_restart"_read_restart.html command in a new script. Or they can
be converted to text data files using the "-r command-line
switch"_Section_start.html#start_7 and read by a
switch"_Section_start.html#start_6 and read by a
"read_data"_read_data.html command in a new script.
Here we give examples of 2 scripts that read either a binary restart
@ -337,7 +337,7 @@ All of the above examples work whether you are running on 1 or
multiple processors, but assumed you are running LAMMPS on a single
partition of processors. LAMMPS can be run on multiple partitions via
the "-partition" command-line switch as described in "this
section"_Section_start.html#start_7 of the manual.
section"_Section_start.html#start_6 of the manual.
In the last 2 examples, if LAMMPS were run on 3 partitions, the same
scripts could be used if the "index" and "loop" variables were
@ -387,7 +387,7 @@ for more info on packages.
In all these cases, you must run with one or more processors per
replica. The processors assigned to each replica are determined at
run-time by using the "-partition command-line
switch"_Section_start.html#start_7 to launch LAMMPS on multiple
switch"_Section_start.html#start_6 to launch LAMMPS on multiple
partitions, which in this context are the same as replicas. E.g.
these commands:
@ -395,7 +395,7 @@ mpirun -np 16 lmp_linux -partition 8x2 -in in.temper
mpirun -np 8 lmp_linux -partition 8x1 -in in.neb :pre
would each run 8 replicas, on either 16 or 8 processors. Note the use
of the "-in command-line switch"_Section_start.html#start_7 to specify
of the "-in command-line switch"_Section_start.html#start_6 to specify
the input script which is required when running in multi-replica mode.
Also note that with MPI installed on a machine (e.g. your desktop),
@ -1872,7 +1872,7 @@ void lammps_free(void *) :pre
The lammps_open() function is used to initialize LAMMPS, passing in a
list of strings as if they were "command-line
arguments"_Section_start.html#start_7 when LAMMPS is run in
arguments"_Section_start.html#start_6 when LAMMPS is run in
stand-alone mode from the command line, and a MPI communicator for
LAMMPS to run under. It returns a ptr to the LAMMPS object that is
created, and which is used in subsequent library calls. The
@ -1938,7 +1938,7 @@ documentation in the src/library.cpp file for details, including
which quantities can be queried by name:
void *lammps_extract_global(void *, char *)
void lammps_extract_box(void *, double *, double *,
void lammps_extract_box(void *, double *, double *,
double *, double *, double *, int *, int *)
void *lammps_extract_atom(void *, char *)
void *lammps_extract_compute(void *, char *, int, int)
@ -2682,14 +2682,14 @@ bond_coeff 2 25.724 0.0 :pre
When running dynamics with the adiabatic core/shell model, the
following issues should be considered. The relative motion of
the core and shell particles corresponds to the polarization,
hereby an instantaneous relaxation of the shells is approximated
the core and shell particles corresponds to the polarization,
hereby an instantaneous relaxation of the shells is approximated
and a fast core/shell spring frequency ensures a nearly constant
internal kinetic energy during the simulation.
internal kinetic energy during the simulation.
Thermostats can alter this polarization behaviour, by scaling the
internal kinetic energy, meaning the shell will not react freely to
its electrostatic environment.
Therefore it is typically desirable to decouple the relative motion of
internal kinetic energy, meaning the shell will not react freely to
its electrostatic environment.
Therefore it is typically desirable to decouple the relative motion of
the core/shell pair, which is an imaginary degree of freedom, from the
real physical system. To do that, the "compute
temp/cs"_compute_temp_cs.html command can be used, in conjunction with
@ -2721,13 +2721,13 @@ fix thermostatequ all nve # integrator as needed f
fix_modify thermoberendsen temp CSequ
thermo_modify temp CSequ # output of center-of-mass derived temperature :pre
The pressure for the core/shell system is computed via the regular
LAMMPS convention by "treating the cores and shells as individual
particles"_#MitchellFincham2. For the thermo output of the pressure
as well as for the application of a barostat, it is necessary to
use an additional "pressure"_compute_pressure compute based on the
default "temperature"_compute_temp and specifying it as a second
argument in "fix modify"_fix_modify.html and
The pressure for the core/shell system is computed via the regular
LAMMPS convention by "treating the cores and shells as individual
particles"_#MitchellFincham2. For the thermo output of the pressure
as well as for the application of a barostat, it is necessary to
use an additional "pressure"_compute_pressure compute based on the
default "temperature"_compute_temp and specifying it as a second
argument in "fix modify"_fix_modify.html and
"thermo_modify"_thermo_modify.html resulting in:
(...)
@ -2757,18 +2757,18 @@ temp/cs"_compute_temp_cs.html command to the {temp} keyword of the
velocity all create 1427 134 bias yes temp CSequ
velocity all scale 1427 temp CSequ :pre
To maintain the correct polarizability of the core/shell pairs, the
kinetic energy of the internal motion shall remain nearly constant.
Therefore the choice of spring force and mass ratio need to ensure
much faster relative motion of the 2 atoms within the core/shell pair
than their center-of-mass velocity. This allows the shells to
effectively react instantaneously to the electrostatic environment and
To maintain the correct polarizability of the core/shell pairs, the
kinetic energy of the internal motion shall remain nearly constant.
Therefore the choice of spring force and mass ratio need to ensure
much faster relative motion of the 2 atoms within the core/shell pair
than their center-of-mass velocity. This allows the shells to
effectively react instantaneously to the electrostatic environment and
limits energy transfer to or from the core/shell oscillators.
This fast movement also dictates the timestep that can be used.
The primary literature of the adiabatic core/shell model suggests that
the fast relative motion of the core/shell pairs only allows negligible
energy transfer to the environment.
energy transfer to the environment.
The mentioned energy transfer will typically lead to a small drift
in total energy over time. This internal energy can be monitored
using the "compute chunk/atom"_compute_chunk_atom.html and "compute
@ -2790,7 +2790,7 @@ pairs as chunks.
For example if core/shell pairs are the only molecules:
read_data NaCl_CS_x0.1_prop.data
read_data NaCl_CS_x0.1_prop.data
compute prop all property/atom molecule
compute cs_chunk all chunk/atom c_prop
compute cstherm all temp/chunk cs_chunk temp internal com yes cdof 3.0 # note the chosen degrees of freedom for the core/shell pairs

View File

@ -121,9 +121,10 @@ Package, Description, Doc page, Example, Library
"USER-INTEL"_#USER-INTEL, optimized Intel CPU and KNL styles,"Section 5.3.2"_accelerate_intel.html, WWW bench, -
"USER-LB"_#USER-LB, Lattice Boltzmann fluid,"fix lb/fluid"_fix_lb_fluid.html, USER/lb, -
"USER-MANIFOLD"_#USER-MANIFOLD, motion on 2d surfaces,"fix manifoldforce"_fix_manifoldforce.html, USER/manifold, -
"USER-MEAMC"_#USER-MEAMC, modified EAM potential (C++), "pair_style meam/c"_pair_meam.html, meam, -
"USER-MGPT"_#USER-MGPT, fast MGPT multi-ion potentials, "pair_style mgpt"_pair_mgpt.html, USER/mgpt, -
"USER-MISC"_#USER-MISC, single-file contributions, USER-MISC/README, USER/misc, -
"USER-MOLFILE"_#USER-MOLFILE, "VMD"_VMD molfile plug-ins,"dump molfile"_dump_molfile.html, -, ext
"USER-MOLFILE"_#USER-MOLFILE, "VMD"_vmd_home molfile plug-ins,"dump molfile"_dump_molfile.html, -, ext
"USER-NETCDF"_#USER-NETCDF, dump output via NetCDF,"dump netcdf"_dump_netcdf.html, -, ext
"USER-OMP"_#USER-OMP, OpenMP-enabled styles,"Section 5.3.4"_accelerate_omp.html, WWW bench, -
"USER-PHONON"_#USER-PHONON, phonon dynamical matrix,"fix phonon"_fix_phonon.html, USER/phonon, -
@ -135,7 +136,7 @@ Package, Description, Doc page, Example, Library
"USER-SMTBQ"_#USER-SMTBQ, second moment tight binding QEq potential,"pair_style smtbq"_pair_smtbq.html, USER/smtbq, -
"USER-SPH"_#USER-SPH, smoothed particle hydrodynamics,"SPH User Guide"_PDF/SPH_LAMMPS_userguide.pdf, USER/sph, -
"USER-TALLY"_#USER-TALLY, pairwise tally computes,"compute XXX/tally"_compute_tally.html, USER/tally, -
"USER-VTK"_#USER-VTK, dump output via VTK, "compute custom/vtk"_dump_custom_vtk.html, -, ext
"USER-VTK"_#USER-VTK, dump output via VTK, "compute vtk"_dump_vtk.html, -, ext
:tb(ea=c,ca1=l)
:line
@ -368,7 +369,7 @@ suffix in their style name. "Section 5.3.1"_accelerate_gpu.html gives
details of what hardware and Cuda software is required on your system,
and details on how to build and use this package. Its styles can be
invoked at run time via the "-sf gpu" or "-suffix gpu" "command-line
switches"_Section_start.html#start_7. See also the "KOKKOS"_#KOKKOS
switches"_Section_start.html#start_6. See also the "KOKKOS"_#KOKKOS
package, which has GPU-enabled styles.
[Authors:] Mike Brown (Intel) while at Sandia and ORNL and Trung Nguyen
@ -426,8 +427,8 @@ src/GPU/README
lib/gpu/README
"Section 5.3"_Section_accelerate.html#acc_3
"Section 5.3.1"_accelerate_gpu.html
"Section 2.7 -sf gpu"_Section_start.html#start_7
"Section 2.7 -pk gpu"_Section_start.html#start_7
"Section 2.6 -sf gpu"_Section_start.html#start_6
"Section 2.6 -pk gpu"_Section_start.html#start_6
"package gpu"_package.html
Pair Styles section of "Section 3.5"_Section_commands.html#cmd_5 for pair styles followed by (g)
"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul
@ -528,8 +529,8 @@ style name. "Section 5.3.3"_accelerate_kokkos.html gives details of
what hardware and software is required on your system, and how to
build and use this package. Its styles can be invoked at run time via
the "-sf kk" or "-suffix kk" "command-line
switches"_Section_start.html#start_7. Also see the "GPU"_#GPU,
"OPT"_#OPT, "USER-INTEL"_#USER-INTEL, and "USER-OMP"_#USER_OMP
switches"_Section_start.html#start_6. Also see the "GPU"_#GPU,
"OPT"_#OPT, "USER-INTEL"_#USER-INTEL, and "USER-OMP"_#USER-OMP
packages, which have styles optimized for CPUs, KNLs, and GPUs.
You must have a C++11 compatible compiler to use this package.
@ -585,7 +586,7 @@ do not recommend building with other acceleration packages installed
make yes-kokkos
make machine :pre
make no-kokkos
make machine :pre
@ -596,9 +597,9 @@ src/KOKKOS/README
lib/kokkos/README
"Section 5.3"_Section_accelerate.html#acc_3
"Section 5.3.3"_accelerate_kokkos.html
"Section 2.7 -k on ..."_Section_start.html#start_7
"Section 2.7 -sf kk"_Section_start.html#start_7
"Section 2.7 -pk kokkos"_Section_start.html#start_7
"Section 2.6 -k on ..."_Section_start.html#start_6
"Section 2.6 -sf kk"_Section_start.html#start_6
"Section 2.6 -pk kokkos"_Section_start.html#start_6
"package kokkos"_package.html
Styles sections of "Section 3.5"_Section_commands.html#cmd_5 for styles followed by (k)
"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul
@ -839,13 +840,13 @@ written and read in parallel.
Note that MPIIO is part of the standard message-passing interface
(MPI) library, so you should not need any additional compiler or link
settings, beyond what LAMMPS normally uses for MPI on your system.
make yes-mpiio
make machine :pre
make no-mpiio
make machine :pre
[Supporting info:]
src/MPIIO: filenames -> commands
@ -855,16 +856,16 @@ src/MPIIO: filenames -> commands
"read_restart"_read_restart.html :ul
:line
MSCG package :link(MSCG),h4
MSCG package :link(mscg),h4
[Contents:]
A "fix mscg"_fix_mscg.html command which can parameterize a
Mulit-Scale Coarse-Graining (MSCG) model using the open-source "MS-CG
library"_mscg.
library"_mscg_home.
:link(mscg,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.
@ -914,7 +915,7 @@ lib/mscg/README
examples/mscg :ul
:line
OPT package :link(OPT),h4
[Contents:]
@ -925,7 +926,7 @@ CHARMM, and Morse potentials. The styles have an "opt" suffix in
their style name. "Section 5.3.5"_accelerate_opt.html gives details
of how to build and use this package. Its styles can be invoked at
run time via the "-sf opt" or "-suffix opt" "command-line
switches"_Section_start.html#start_7. See also the "KOKKOS"_#KOKKOS,
switches"_Section_start.html#start_6. See also the "KOKKOS"_#KOKKOS,
"USER-INTEL"_#USER-INTEL, and "USER-OMP"_#USER-OMP packages, which
have styles optimized for CPU performance.
@ -952,7 +953,7 @@ CCFLAGS: add -restrict :ul
src/OPT: filenames -> commands
"Section 5.3"_Section_accelerate.html#acc_3
"Section 5.3.5"_accelerate_opt.html
"Section 2.7 -sf opt"_Section_start.html#start_7
"Section 2.6 -sf opt"_Section_start.html#start_6
Pair Styles section of "Section 3.5"_Section_commands.html#cmd_5 for pair styles followed by (t)
"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul
@ -1323,11 +1324,11 @@ VORONOI package :link(VORONOI),h4
[Contents:]
A compute command which calculates the Voronoi tesselation of a
collection of atoms by wrapping the "Voro++ library"_voronoi. 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(voronoi,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.
@ -1387,7 +1388,7 @@ atomic information to continuum fields.
[Authors:] Reese Jones, Jeremy Templeton, Jon Zimmerman (Sandia).
[Install or un-install:]
Before building LAMMPS with this package, you must first build the ATC
library in lib/atc. You can do this manually if you prefer; follow
the instructions in lib/atc/README. You can also do it in one step
@ -1420,10 +1421,10 @@ usual manner:
make yes-user-atc
make machine :pre
make no-user-atc
make machine :pre
[Supporting info:]
src/USER-ATC: filenames -> commands
@ -1446,7 +1447,7 @@ model.
[Author:] Ilya Valuev (JIHT, Russia).
[Install or un-install:]
Before building LAMMPS with this package, you must first build the
AWPMD library in lib/awpmd. You can do this manually if you prefer;
follow the instructions in lib/awpmd/README. You can also do it in
@ -1479,16 +1480,15 @@ usual manner:
make yes-user-awpmd
make machine :pre
make no-user-awpmd
make machine :pre
[Supporting info:]
src/USER-AWPMD: filenames -> commands
src/USER-AWPMD/README
"pair awpmd/cut"_pair_awpmd.html
"fix nve/awpmd"_fix_nve_awpmd.html
examples/USER/awpmd :ul
:line
@ -1503,16 +1503,16 @@ oxDNA model of Doye, Louis and Ouldridge at the University of Oxford.
This includes Langevin-type rigid-body integrators with improved
stability.
[Author:] Oliver Henrich (University of Edinburgh).
[Author:] Oliver Henrich (University of Strathclyde, Glasgow).
[Install or un-install:]
make yes-user-cgdna
make machine :pre
make no-user-cgdna
make machine :pre
[Supporting info:]
src/USER-CGDNA: filenames -> commands
@ -1520,7 +1520,7 @@ src/USER-CGDNA: filenames -> commands
"pair_style oxdna/*"_pair_oxdna.html
"pair_style oxdna2/*"_pair_oxdna2.html
"bond_style oxdna/*"_bond_oxdna.html
"bond_style oxdna2/*"_bond_oxdna2.html
"bond_style oxdna2/*"_bond_oxdna.html
"fix nve/dotc/langevin"_fix_nve_dotc_langevin.html :ul
:line
@ -1537,13 +1537,13 @@ acids.
[Author:] Axel Kohlmeyer (Temple U).
[Install or un-install:]
make yes-user-cgsdk
make machine :pre
make no-user-cgsdk
make machine :pre
[Supporting info:]
src/USER-CGSDK: filenames -> commands
@ -1571,7 +1571,7 @@ by Giacomo Fiorin (ICMS, Temple University, Philadelphia, PA, USA) and
Jerome Henin (LISM, CNRS, Marseille, France).
[Install or un-install:]
Before building LAMMPS with this package, you must first build the
COLVARS library in lib/colvars. You can do this manually if you
prefer; follow the instructions in lib/colvars/README. You can also
@ -1595,10 +1595,10 @@ usual manner:
make yes-user-colvars
make machine :pre
make no-user-colvars
make machine :pre
[Supporting info:]
src/USER-COLVARS: filenames -> commands
@ -1620,13 +1620,13 @@ intensities based on kinematic diffraction theory.
[Author:] Shawn Coleman while at the U Arkansas.
[Install or un-install:]
make yes-user-diffraction
make machine :pre
make no-user-diffraction
make machine :pre
[Supporting info:]
src/USER-DIFFRACTION: filenames -> commands
@ -1655,13 +1655,13 @@ algorithm.
Brennan (ARL).
[Install or un-install:]
make yes-user-dpd
make machine :pre
make no-user-dpd
make machine :pre
[Supporting info:]
src/USER-DPD: filenames -> commands
@ -1697,13 +1697,13 @@ tools/drude.
Devemy (CNRS), and Agilio Padua (U Blaise Pascal).
[Install or un-install:]
make yes-user-drude
make machine :pre
make no-user-drude
make machine :pre
[Supporting info:]
src/USER-DRUDE: filenames -> commands
@ -1735,21 +1735,21 @@ tools/eff; see its README file.
[Author:] Andres Jaramillo-Botero (CalTech).
[Install or un-install:]
make yes-user-eff
make machine :pre
make no-user-eff
make machine :pre
[Supporting info:]
src/USER-EFF: filenames -> commands
src/USER-EFF/README
"atom_style electron"_atom_style.html
"fix nve/eff"_fix_nve_eff.html
"fix nvt/eff"_fix_nvt_eff.html
"fix npt/eff"_fix_npt_eff.html
"fix nvt/eff"_fix_nh_eff.html
"fix npt/eff"_fix_nh_eff.html
"fix langevin/eff"_fix_langevin_eff.html
"compute temp/eff"_compute_temp_eff.html
"pair eff/cut"_pair_eff.html
@ -1774,13 +1774,13 @@ for using this package in tools/fep; see its README file.
[Author:] Agilio Padua (Universite Blaise Pascal Clermont-Ferrand)
[Install or un-install:]
make yes-user-fep
make machine :pre
make no-user-fep
make machine :pre
[Supporting info:]
src/USER-FEP: filenames -> commands
@ -1837,13 +1837,13 @@ file.
You can then install/un-install the package and build LAMMPS in the
usual manner:
make yes-user-h5md
make machine :pre
make no-user-h5md
make machine :pre
[Supporting info:]
src/USER-H5MD: filenames -> commands
@ -1863,7 +1863,7 @@ All of them have an "intel" in their style name. "Section
5.3.2"_accelerate_intel.html gives details of what hardware and
compilers are required on your system, and how to build and use this
package. Its styles can be invoked at run time via the "-sf intel" or
"-suffix intel" "command-line switches"_Section_start.html#start_7.
"-suffix intel" "command-line switches"_Section_start.html#start_6.
Also see the "KOKKOS"_#KOKKOS, "OPT"_#OPT, and "USER-OMP"_#USER-OMP
packages, which have styles optimized for CPUs and KNLs.
@ -1909,7 +1909,7 @@ explained in "Section 5.3.2"_accelerate_intel.html.
make yes-user-intel yes-user-omp
make machine :pre
make no-user-intel no-user-omp
make machine :pre
@ -1919,8 +1919,8 @@ src/USER-INTEL: filenames -> commands
src/USER-INTEL/README
"Section 5.3"_Section_accelerate.html#acc_3
"Section 5.3.2"_accelerate_gpu.html
"Section 2.7 -sf intel"_Section_start.html#start_7
"Section 2.7 -pk intel"_Section_start.html#start_7
"Section 2.6 -sf intel"_Section_start.html#start_6
"Section 2.6 -pk intel"_Section_start.html#start_6
"package intel"_package.html
Styles sections of "Section 3.5"_Section_commands.html#cmd_5 for styles followed by (i)
src/USER-INTEL/TEST
@ -1939,13 +1939,13 @@ can be used to model MD particles influenced by hydrodynamic forces.
Ontario).
[Install or un-install:]
make yes-user-lb
make machine :pre
make no-user-lb
make machine :pre
[Supporting info:]
src/USER-LB: filenames -> commands
@ -1973,13 +1973,13 @@ matrix-MGPT algorithm due to Tomas Oppelstrup at LLNL.
[Authors:] Tomas Oppelstrup and John Moriarty (LLNL).
[Install or un-install:]
make yes-user-mgpt
make machine :pre
make no-user-mgpt
make machine :pre
[Supporting info:]
src/USER-MGPT: filenames -> commands
@ -2001,13 +2001,13 @@ dihedral, improper, or command style.
src/USER-MISC/README file.
[Install or un-install:]
make yes-user-misc
make machine :pre
make no-user-misc
make machine :pre
[Supporting info:]
src/USER-MISC: filenames -> commands
@ -2028,40 +2028,73 @@ algorithm to formulate single-particle constraint functions
g(xi,yi,zi) = 0 and their derivative (i.e. the normal of the manifold)
n = grad(g).
[Author:] Stefan Paquay (Eindhoven University of Technology (TU/e), The
Netherlands)
[Author:] Stefan Paquay (until 2017: Eindhoven University of Technology (TU/e), The
Netherlands; since 2017: Brandeis University, Waltham, MA, USA)
[Install or un-install:]
make yes-user-manifold
make machine :pre
make no-user-manifold
make machine :pre
[Supporting info:]
src/USER-MANIFOLD: filenames -> commands
src/USER-MANIFOLD/README
"doc/manifolds"_manifolds.html
"fix manifoldforce"_fix_manifoldforce.html
"fix nve/manifold/rattle"_fix_nve_manifold/rattle.html
"fix nvt/manifold/rattle"_fix_nvt_manifold/rattle.html
"fix nve/manifold/rattle"_fix_nve_manifold_rattle.html
"fix nvt/manifold/rattle"_fix_nvt_manifold_rattle.html
examples/USER/manifold
http://lammps.sandia.gov/movies.html#manifold :ul
:line
USER-MEAMC package :link(USER-MEAMC),h4
[Contents:]
A pair style for the modified embedded atom (MEAM) potential
translated from the Fortran version in the "MEAM"_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.
[Author:] Sebastian Huetter, (Otto-von-Guericke University Magdeburg)
based on the Fortran version of Greg Wagner (Northwestern U) while at
Sandia.
[Install or un-install:]
make yes-user-meamc
make machine :pre
make no-user-meamc
make machine :pre
[Supporting info:]
src/USER-MEAMC: filenames -> commands
src/USER-MEAMC/README
"pair meam/c"_pair_meam.html
examples/meam :ul
:line
USER-MOLFILE package :link(USER-MOLFILE),h4
[Contents:]
A "dump molfile"_dump_molfile.html command which uses molfile plugins
that are bundled with the "VMD"_http://www.ks.uiuc.edu/Research/vmd
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.
:link(vmd_home,http://www.ks.uiuc.edu/Research/vmd)
To use this package you must have the desired VMD plugins available on
your system.
@ -2079,7 +2112,7 @@ at
[Author:] Axel Kohlmeyer (Temple U).
[Install or un-install:]
Note that the lib/molfile/Makefile.lammps file has a setting for a
dynamic loading library libdl.a that should is typically present on
all systems, which is required for LAMMPS to link with this package.
@ -2089,10 +2122,10 @@ lib/molfile/Makefile.lammps for details.
make yes-user-molfile
make machine :pre
make no-user-molfile
make machine :pre
[Supporting info:]
src/USER-MOLFILE: filenames -> commands
@ -2118,7 +2151,7 @@ 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
"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)
@ -2127,7 +2160,7 @@ tools:
[Author:] Lars Pastewka (Karlsruhe Institute of Technology).
[Install or un-install:]
Note that to follow these steps, you need the standard NetCDF software
package installed on your system. The lib/netcdf/Makefile.lammps file
has settings for NetCDF include and library files that LAMMPS needs to
@ -2137,7 +2170,7 @@ lib/netcdf/README for details.
make yes-user-netcdf
make machine :pre
make no-user-netcdf
make machine :pre
@ -2160,7 +2193,7 @@ via OpenMP directives. All of them have an "omp" in their style name.
"Section 5.3.4"_accelerate_omp.html gives details of what hardware and
compilers are required on your system, and how to build and use this
package. Its styles can be invoked at run time via the "-sf omp" or
"-suffix omp" "command-line switches"_Section_start.html#start_7.
"-suffix omp" "command-line switches"_Section_start.html#start_6.
Also see the "KOKKOS"_#KOKKOS, "OPT"_#OPT, and
"USER-INTEL"_#USER-INTEL packages, which have styles optimized for
CPUs.
@ -2177,10 +2210,10 @@ Once you have an appropriate Makefile.machine, you can
install/un-install the package and build LAMMPS in the usual manner:
[Install or un-install:]
make yes-user-omp
make machine :pre
make no-user-omp
make machine :pre
@ -2193,8 +2226,8 @@ src/USER-OMP: filenames -> commands
src/USER-OMP/README
"Section 5.3"_Section_accelerate.html#acc_3
"Section 5.3.4"_accelerate_omp.html
"Section 2.7 -sf omp"_Section_start.html#start_7
"Section 2.7 -pk omp"_Section_start.html#start_7
"Section 2.6 -sf omp"_Section_start.html#start_6
"Section 2.6 -pk omp"_Section_start.html#start_6
"package omp"_package.html
Styles sections of "Section 3.5"_Section_commands.html#cmd_5 for styles followed by (o)
"Benchmarks page"_http://lammps.sandia.gov/bench.html of web site :ul
@ -2212,13 +2245,13 @@ relations, directly from molecular dynamics simulations.
[Author:] Ling-Ti Kong (Shanghai Jiao Tong University).
[Install or un-install:]
make yes-user-phonon
make machine :pre
make no-user-phonon
make machine :pre
[Supporting info:]
src/USER-PHONON: filenames -> commands
@ -2234,7 +2267,7 @@ USER-QMMM package :link(USER-QMMM),h4
A "fix qmmm"_fix_qmmm.html command which allows LAMMPS to be used in a
QM/MM simulation, currently only in combination with the "Quantum
ESPRESSO"_espresso package.
ESPRESSO"_espresso package.
:link(espresso,http://www.quantum-espresso.org)
@ -2274,7 +2307,7 @@ usual manner:
make yes-user-qmmm
make machine :pre
make no-user-qmmm
make machine :pre
@ -2283,7 +2316,7 @@ for a QM/MM simulation. You must also build Quantum ESPRESSO and
create a new executable which links LAMMPS and Quanutm ESPRESSO
together. These are steps 3 and 4 described in the lib/qmmm/README
file.
[Supporting info:]
src/USER-QMMM: filenames -> commands
@ -2311,13 +2344,13 @@ simulation.
[Author:] Yuan Shen (Stanford U).
[Install or un-install:]
make yes-user-qtb
make machine :pre
make no-user-qtb
make machine :pre
[Supporting info:]
src/USER-QTB: filenames -> commands
@ -2361,10 +2394,10 @@ usual manner:
make yes-user-quip
make machine :pre
make no-user-quip
make machine :pre
[Supporting info:]
src/USER-QUIP: filenames -> commands
@ -2387,13 +2420,13 @@ for monitoring molecules as bonds are created and destroyed.
[Author:] Hasan Metin Aktulga (MSU) while at Purdue University.
[Install or un-install:]
make yes-user-reaxc
make machine :pre
make no-user-reaxc
make machine :pre
[Supporting info:]
src/USER-REAXC: filenames -> commands
@ -2450,10 +2483,10 @@ usual manner:
make yes-user-smd
make machine :pre
make no-user-smd
make machine :pre
[Supporting info:]
src/USER-SMD: filenames -> commands
@ -2476,13 +2509,13 @@ ionocovalent bonds in oxides.
Tetot (LAAS-CNRS, France).
[Install or un-install:]
make yes-user-smtbq
make machine :pre
make no-user-smtbq
make machine :pre
[Supporting info:]
src/USER-SMTBQ: filenames -> commands
@ -2515,13 +2548,13 @@ property/atom"_compute_property_atom.html command.
Dynamics, Ernst Mach Institute, Germany).
[Install or un-install:]
make yes-user-sph
make machine :pre
make no-user-sph
make machine :pre
[Supporting info:]
src/USER-SPH: filenames -> commands
@ -2543,13 +2576,13 @@ stress, etc) about individual interactions.
[Author:] Axel Kohlmeyer (Temple U).
[Install or un-install:]
make yes-user-tally
make machine :pre
make no-user-tally
make machine :pre
[Supporting info:]
src/USER-TALLY: filenames -> commands
@ -2563,7 +2596,7 @@ USER-VTK package :link(USER-VTK),h4
[Contents:]
A "dump custom/vtk"_dump_custom_vtk.html command which outputs
A "dump vtk"_dump_vtk.html command which outputs
snapshot info in the "VTK format"_vtk, enabling visualization by
"Paraview"_paraview or other visuzlization packages.
@ -2576,7 +2609,7 @@ system.
[Authors:] Richard Berger (JKU) and Daniel Queteschiner (DCS Computing).
[Install or un-install:]
The lib/vtk/Makefile.lammps file has settings for accessing VTK files
and its library, which are required for LAMMPS to build and link with
this package. If the settings are not valid for your system, check if
@ -2589,13 +2622,13 @@ usual manner:
make yes-user-vtk
make machine :pre
make no-user-vtk
make machine :pre
[Supporting info:]
src/USER-VTK: filenames -> commands
src/USER-VTK/README
lib/vtk/README
"dump custom/vtk"_dump_custom_vtk.html :ul
"dump vtk"_dump_vtk.html :ul

View File

@ -118,18 +118,21 @@ check which version of Python you have installed, by simply typing
11.2 Overview of using Python from a LAMMPS script :link(py_2),h4
NOTE: It is not currently possible to use the "python"_python.html
command described in this section with Python 3, only with Python 2.
The C API changed from Python 2 to 3 and the LAMMPS code is not
compatible with both.
LAMMPS has several commands which can be used to invoke Python
code directly from an input script:
LAMMPS has a "python"_python.html command which can be used in an
input script to define and execute a Python function that you write
the code for. The Python function can also be assigned to a LAMMPS
python-style variable via the "variable"_variable.html command. Each
time the variable is evaluated, either in the LAMMPS input script
itself, or by another LAMMPS command that uses the variable, this will
trigger the Python function to be invoked.
"python"_python.html
"variable python"_variable.html
"fix python"_fix_python.html
"pair_style python"_pair_python.html :ul
The "python"_python.html command which can be used to define and
execute a Python function that you write the code for. The Python
function can also be assigned to a LAMMPS python-style variable via
the "variable"_variable.html command. Each time the variable is
evaluated, either in the LAMMPS input script itself, or by another
LAMMPS command that uses the variable, this will trigger the Python
function to be invoked.
The Python code for the function can be included directly in the input
script or in an auxiliary file. The function can have arguments which
@ -162,8 +165,16 @@ doc page for its python-style variables for more info, including
examples of Python code you can write for both pure Python operations
and callbacks to LAMMPS.
To run pure Python code from LAMMPS, you only need to build LAMMPS
with the PYTHON package installed:
The "fix python"_fix_python.html command can execute
Python code at selected timesteps during a simulation run.
The "pair_style python"_pair_python command allows you to define
pairwise potentials as python code which encodes a single pairwise
interaction. This is useful for rapid-developement and debugging of a
new potential.
To use any of these commands, you only need to build LAMMPS with the
PYTHON package installed:
make yes-python
make machine :pre
@ -187,7 +198,7 @@ file and the shared library.
11.3 Building LAMMPS as a shared library :link(py_3),h4
Instructions on how to build LAMMPS as a shared library are given in
"Section 2.5"_Section_start.html#start_5. A shared library is one
"Section 2.4"_Section_start.html#start_4. A shared library is one
that is dynamically loadable, which is what Python requires to wrap
LAMMPS. On Linux this is a library file that ends in ".so", not ".a".
@ -206,7 +217,7 @@ NOTE: If you are building LAMMPS with an MPI or FFT library or other
auxiliary libraries (used by various packages), then all of these
extra libraries must also be shared libraries. If the LAMMPS
shared-library build fails with an error complaining about this, see
"Section 2.5"_Section_start.html#start_5 for more details.
"Section 2.4"_Section_start.html#start_4 for more details.
:line
@ -428,7 +439,7 @@ first importing from the lammps.py file:
>>> CDLL("liblammps.so") :pre
If an error occurs, carefully go thru the steps in "Section
2.5"_Section_start.html#start_5 and above about building a shared
2.4"_Section_start.html#start_4 and above about building a shared
library and about insuring Python can find the necessary two files
it needs.
@ -703,7 +714,7 @@ stored in the "image" property. All three image flags are stored in
a packed format in a single integer, so count would be 1 to retrieve
that integer, however also a count value of 3 can be used and then
the image flags will be unpacked into 3 individual integers, ordered
in a similar fashion as coordinates.
in a similar fashion as coordinates.
Note that the data structure gather_atoms("x") returns is different
from the data structure returned by extract_atom("x") in four ways.

View File

@ -14,11 +14,11 @@ experienced users.
2.1 "What's in the LAMMPS distribution"_#start_1
2.2 "Making LAMMPS"_#start_2
2.3 "Making LAMMPS with optional packages"_#start_3
2.5 "Building LAMMPS as a library"_#start_4
2.6 "Running LAMMPS"_#start_5
2.7 "Command-line options"_#start_6
2.8 "Screen output"_#start_7
2.9 "Tips for users of previous versions"_#start_8 :all(b)
2.4 "Building LAMMPS as a library"_#start_4
2.5 "Running LAMMPS"_#start_5
2.6 "Command-line options"_#start_6
2.7 "Screen output"_#start_7
2.8 "Tips for users of previous versions"_#start_8 :all(b)
:line
@ -434,20 +434,39 @@ files. Note that on some large parallel machines which use "modules"
for their compile/link environements, you may simply need to include
the correct module in your build environment. Or the parallel machine
may have a vendor-provided FFT library which the compiler has no
trouble finding.
trouble finding. See the src/MAKE/OPTIONS/Makefile.fftw file for an
example of how to specify these variables to use the FFTW3 library.
FFTW is a fast, portable library that should also work on any
platform. You can download it from
FFTW is fast, portable library that should also work on any platform
and typically be faster than KISS FFT. You can download it from
"www.fftw.org"_http://www.fftw.org. Both the legacy version 2.1.X and
the newer 3.X versions are supported as -DFFT_FFTW2 or -DFFT_FFTW3.
Building FFTW for your box should be as simple as ./configure; make.
Note that on some platforms FFTW2 has been pre-installed, and uses
renamed files indicating the precision it was compiled with,
e.g. sfftw.h, or dfftw.h instead of fftw.h. In this case, you can
specify an additional define variable for FFT_INC called -DFFTW_SIZE,
which will select the correct include file. In this case, for FFT_LIB
you must also manually specify the correct library, namely -lsfftw or
-ldfftw.
Building FFTW for your box should be as simple as ./configure; make;
make install. The install command typically requires root privileges
(e.g. invoke it via sudo), unless you specify a local directory with
the "--prefix" option of configure. Type "./configure --help" to see
various options.
If you wish to have FFTW support for single-precision FFTs (see below
about -DFFT_SINGLE) in addition to the default double-precision FFTs,
you will need to build FFTW a second time for single-precision. For
FFTW3, do this via:
make clean
./configure --enable-single; make; make install :pre
which should produce the additional library libfftw3f.a.
For FFTW2, do this:
make clean
./configure --enable-float --enable-type-prefix; make; make install :pre
which should produce the additional library libsfftw.a and additional
include file sfttw.a. Note that on some platforms FFTW2 has been
pre-installed for both single- and double-precision, and may already
have these files as well as libdfftw.a and dfftw.h for double
precision.
The FFT_INC variable also allows for a -DFFT_SINGLE setting that will
use single-precision FFTs with PPPM, which can speed-up long-range
@ -459,6 +478,16 @@ accuracy for reduced memory use and parallel communication costs for
transposing 3d FFT data. Note that single precision FFTs have only
been tested with the FFTW3, FFTW2, MKL, and KISS FFT options.
When using -DFFT_SINGLE with FFTW3 or FFTW2, you need to build FFTW
with support for single-precision, as explained above. For FFTW3 you
also need to include -lfftw3f with the FFT_LIB setting, in addition to
-lfftw3. For FFTW2, you also need to specify -DFFT_SIZE with the
FFT_INC setting and -lsfftw with the FFT_LIB setting (in place of
-lfftw). Similarly, if FFTW2 has been preinstalled with an explicit
double-precision library (libdfftw.a and not the default libfftw.a),
then you can specify -DFFT_SIZE (and not -DFFT_SINGLE), and specify
-ldfftw to use double-precision FFTs.
Step 7 :h6
The 3 JPG variables allow you to specify a JPEG and/or PNG library
@ -655,8 +684,7 @@ This section has the following sub-sections:
2.3.1 "Package basics"_#start_3_1
2.3.2 "Including/excluding packages"_#start_3_2
2.3.3 "Packages that require extra libraries"_#start_3_3
2.3.4 "Packages that require Makefile.machine settings"_#start_3_4 :all(b)
2.3.3 "Packages that require extra libraries"_#start_3_3 :all(b)
:line
@ -686,7 +714,7 @@ type
lmp_machine -h :pre
to run your executable with the optional "-h command-line
switch"_#start_7 for "help", which will list the styles and commands
switch"_#start_6 for "help", which will list the styles and commands
known to your executable, and immediately exit.
:line
@ -828,13 +856,13 @@ Packages in the tables "Section 4"_Section_packages.html with an "ext"
in the last column link to exernal libraries whose source code is not
included with LAMMPS. You must first download and install the library
before building LAMMPS with that package installed. E.g. the voronoi
package links to the freely available "Voro++ library"_voronoi. You
package links to the freely available "Voro++ library"_voro_home2. You
can often do the download/build in one step by typing "make lib-name
args=..." from the src dir, with appropriate arguments. You can leave
off the args to see a help message. See "Section
4"_Section_packages.html for details for each package.
:link(voronoi,http://math.lbl.gov/voro++)
:link(voro_home2,http://math.lbl.gov/voro++)
[Possible errors:]

View File

@ -54,7 +54,7 @@ specify the # of GPUs per node
use GPU styles in your input script :ul
The latter two steps can be done using the "-pk gpu" and "-sf gpu"
"command-line switches"_Section_start.html#start_7 respectively. Or
"command-line switches"_Section_start.html#start_6 respectively. Or
the effect of the "-pk" or "-sf" switches can be duplicated by adding
the "package gpu"_package.html or "suffix gpu"_suffix.html commands
respectively to your input script.
@ -75,7 +75,7 @@ This requires two steps (a,b): build the GPU library, then build
LAMMPS with the GPU package.
You can do both these steps in one line, using the src/Make.py script,
described in "Section 2.4"_Section_start.html#start_4 of the manual.
described in "Section 4"_Section_packages.html of the manual.
Type "Make.py -h" for help. If run from the src directory, this
command will create src/lmp_gpu using src/MAKE/Makefile.mpi as the
starting Makefile.machine:
@ -151,9 +151,9 @@ automatically if you create more MPI tasks/node than there are
GPUs/mode. E.g. with 8 MPI tasks/node and 2 GPUs, each GPU will be
shared by 4 MPI tasks.
Use the "-sf gpu" "command-line switch"_Section_start.html#start_7,
Use the "-sf gpu" "command-line switch"_Section_start.html#start_6,
which will automatically append "gpu" to styles that support it. Use
the "-pk gpu Ng" "command-line switch"_Section_start.html#start_7 to
the "-pk gpu Ng" "command-line switch"_Section_start.html#start_6 to
set Ng = # of GPUs/node to use.
lmp_machine -sf gpu -pk gpu 1 -in in.script # 1 MPI task uses 1 GPU
@ -188,7 +188,7 @@ pair_style lj/cut/gpu 2.5 :pre
You must also use the "package gpu"_package.html command to enable the
GPU package, unless the "-sf gpu" or "-pk gpu" "command-line
switches"_Section_start.html#start_7 were used. It specifies the
switches"_Section_start.html#start_6 were used. It specifies the
number of GPUs/node to use, as well as other options.
[Speed-ups to expect:]

View File

@ -30,8 +30,8 @@ Dihedral Styles: charmm, harmonic, opls :l
Fixes: nve, npt, nvt, nvt/sllod :l
Improper Styles: cvff, harmonic :l
Pair Styles: buck/coul/cut, buck/coul/long, buck, eam, gayberne,
charmm/coul/long, lj/cut, lj/cut/coul/long, sw, tersoff :l
K-Space Styles: pppm :l
charmm/coul/long, lj/cut, lj/cut/coul/long, lj/long/coul/long, sw, tersoff :l
K-Space Styles: pppm, pppm/disp :l
:ule
[Speed-ups to expect:]
@ -42,61 +42,90 @@ precision mode. Performance improvements are shown compared to
LAMMPS {without using other acceleration packages} as these are
under active development (and subject to performance changes). The
measurements were performed using the input files available in
the src/USER-INTEL/TEST directory. These are scalable in size; the
results given are with 512K particles (524K for Liquid Crystal).
Most of the simulations are standard LAMMPS benchmarks (indicated
by the filename extension in parenthesis) with modifications to the
run length and to add a warmup run (for use with offload
benchmarks).
the src/USER-INTEL/TEST directory with the provided run script.
These are scalable in size; the results given are with 512K
particles (524K for Liquid Crystal). Most of the simulations are
standard LAMMPS benchmarks (indicated by the filename extension in
parenthesis) with modifications to the run length and to add a
warmup run (for use with offload benchmarks).
:c,image(JPG/user_intel.png)
Results are speedups obtained on Intel Xeon E5-2697v4 processors
(code-named Broadwell) and Intel Xeon Phi 7250 processors
(code-named Knights Landing) with "18 Jun 2016" LAMMPS built with
Intel Parallel Studio 2016 update 3. Results are with 1 MPI task
(code-named Knights Landing) with "June 2017" LAMMPS built with
Intel Parallel Studio 2017 update 2. Results are with 1 MPI task
per physical core. See {src/USER-INTEL/TEST/README} for the raw
simulation rates and instructions to reproduce.
:line
[Accuracy and order of operations:]
In most molecular dynamics software, parallelization parameters
(# of MPI, OpenMP, and vectorization) can change the results due
to changing the order of operations with finite-precision
calculations. The USER-INTEL package is deterministic. This means
that the results should be reproducible from run to run with the
{same} parallel configurations and when using determinstic
libraries or library settings (MPI, OpenMP, FFT). However, there
are differences in the USER-INTEL package that can change the
order of operations compared to LAMMPS without acceleration:
Neighbor lists can be created in a different order :ulb,l
Bins used for sorting atoms can be oriented differently :l
The default stencil order for PPPM is 7. By default, LAMMPS will
calculate other PPPM parameters to fit the desired acuracy with
this order :l
The {newton} setting applies to all atoms, not just atoms shared
between MPI tasks :l
Vectorization can change the order for adding pairwise forces :l
:ule
The precision mode (described below) used with the USER-INTEL
package can change the {accuracy} of the calculations. For the
default {mixed} precision option, calculations between pairs or
triplets of atoms are performed in single precision, intended to
be within the inherent error of MD simulations. All accumulation
is performed in double precision to prevent the error from growing
with the number of atoms in the simulation. {Single} precision
mode should not be used without appropriate validation.
:line
[Quick Start for Experienced Users:]
LAMMPS should be built with the USER-INTEL package installed.
Simulations should be run with 1 MPI task per physical {core},
not {hardware thread}.
For Intel Xeon CPUs:
Edit src/MAKE/OPTIONS/Makefile.intel_cpu_intelmpi as necessary. :ulb,l
If using {kspace_style pppm} in the input script, add "neigh_modify binsize 3" and "kspace_modify diff ad" to the input script for better
performance. :l
"-pk intel 0 omp 2 -sf intel" added to LAMMPS command-line :l
Set the environment variable KMP_BLOCKTIME=0 :l
"-pk intel 0 omp $t -sf intel" added to LAMMPS command-line :l
$t should be 2 for Intel Xeon CPUs and 2 or 4 for Intel Xeon Phi :l
For some of the simple 2-body potentials without long-range
electrostatics, performance and scalability can be better with
the "newton off" setting added to the input script :l
For simulations on higher node counts, add "processors * * * grid
numa" to the beginning of the input script for better scalability :l
If using {kspace_style pppm} in the input script, add
"kspace_modify diff ad" for better performance :l
:ule
For Intel Xeon Phi CPUs for simulations without {kspace_style
pppm} in the input script :
For Intel Xeon Phi CPUs:
Edit src/MAKE/OPTIONS/Makefile.knl as necessary. :ulb,l
Runs should be performed using MCDRAM. :l
"-pk intel 0 omp 2 -sf intel" {or} "-pk intel 0 omp 4 -sf intel"
should be added to the LAMMPS command-line. Choice for best
performance will depend on the simulation. :l
Runs should be performed using MCDRAM. :ulb,l
:ule
For Intel Xeon Phi CPUs for simulations with {kspace_style
pppm} in the input script:
For simulations using {kspace_style pppm} on Intel CPUs
supporting AVX-512:
Edit src/MAKE/OPTIONS/Makefile.knl as necessary. :ulb,l
Runs should be performed using MCDRAM. :l
Add "neigh_modify binsize 3" to the input script for better
performance. :l
Add "kspace_modify diff ad" to the input script for better
performance. :l
export KMP_AFFINITY=none :l
"-pk intel 0 omp 3 lrt yes -sf intel" or "-pk intel 0 omp 1 lrt yes
-sf intel" added to LAMMPS command-line. Choice for best performance
will depend on the simulation. :l
Add "kspace_modify diff ad" to the input script :ulb,l
The command-line option should be changed to
"-pk intel 0 omp $r lrt yes -sf intel" where $r is the number of
threads minus 1. :l
Do not use thread affinity (set KMP_AFFINITY=none) :l
The "newton off" setting may provide better scalability :l
:ule
For Intel Xeon Phi coprocessors (Offload):
@ -168,6 +197,10 @@ cat /proc/cpuinfo :pre
[Building LAMMPS with the USER-INTEL package:]
NOTE: See the src/USER-INTEL/README file for additional flags that
might be needed for best performance on Intel server processors
code-named "Skylake".
The USER-INTEL package must be installed into the source directory:
make yes-user-intel :pre
@ -193,7 +226,7 @@ source /opt/intel/parallel_studio_xe_2016.3.067/psxevars.sh
make intel_cpu_intelmpi :pre
Alternatively, the build can be accomplished with the src/Make.py
script, described in "Section 2.4"_Section_start.html#start_4 of the
script, described in "Section 4"_Section_packages.html of the
manual. Type "Make.py -h" for help. For an example:
Make.py -v -p intel omp -intel cpu -a file intel_cpu_intelmpi :pre
@ -268,7 +301,7 @@ Hyper-Threading technology disabled.
To enable USER-INTEL optimizations for all available styles used in
the input script, the "-sf intel"
"command-line switch"_Section_start.html#start_7 can be used without
"command-line switch"_Section_start.html#start_6 can be used without
any requirement for editing the input script. This switch will
automatically append "intel" to styles that support it. It also
invokes a default command: "package intel 1"_package.html. This
@ -281,7 +314,7 @@ support, that 1 coprocessor per node will be used with automatic
balancing of work between the CPU and the coprocessor.
You can specify different options for the USER-INTEL package by using
the "-pk intel Nphi" "command-line switch"_Section_start.html#start_7
the "-pk intel Nphi" "command-line switch"_Section_start.html#start_6
with keyword/value pairs as specified in the documentation. Here,
Nphi = # of Xeon Phi coprocessors/node (ignored without offload
support). Common options to the USER-INTEL package include {omp} to
@ -321,8 +354,8 @@ follow in the input script.
NOTE: The USER-INTEL package will perform better with modifications
to the input script when "PPPM"_kspace_style.html is used:
"kspace_modify diff ad"_kspace_modify.html and "neigh_modify binsize
3"_neigh_modify.html should be added to the input script.
"kspace_modify diff ad"_kspace_modify.html should be added to the
input script.
Long-Range Thread (LRT) mode is an option to the "package
intel"_package.html command that can improve performance when using
@ -341,6 +374,10 @@ would normally perform best with "-pk intel 0 omp 4", instead use
environment variable "KMP_AFFINITY=none". LRT mode is not supported
when using offload.
NOTE: Changing the "newton"_newton.html setting to off can improve
performance and/or scalability for simple 2-body potentials such as
lj/cut or when using LRT mode on processors supporting AVX-512.
Not all styles are supported in the USER-INTEL package. You can mix
the USER-INTEL package with styles from the "OPT"_accelerate_opt.html
package or the "USER-OMP package"_accelerate_omp.html. Of course,
@ -350,13 +387,17 @@ can performed automatically by using "-sf hybrid intel opt" or
and "omp" suffixes can be appended manually in the input script. For
the latter, the "package omp"_package.html command must be in the
input script or the "-pk omp Nt" "command-line
switch"_Section_start.html#start_7 must be used where Nt is the
switch"_Section_start.html#start_6 must be used where Nt is the
number of OpenMP threads. The number of OpenMP threads should not be
set differently for the different packages. Note that the "suffix
hybrid intel omp"_suffix.html command can also be used within the
input script to automatically append the "omp" suffix to styles when
USER-INTEL styles are not available.
NOTE: For simulations on higher node counts, add "processors * * *
grid numa"_processors.html" to the beginning of the input script for
better scalability.
When running on many nodes, performance might be better when using
fewer OpenMP threads and more MPI tasks. This will depend on the
simulation and the machine. Using the "verlet/split"_run_style.html
@ -445,7 +486,7 @@ sorting"_atom_modify.html is changed to 1 so that the per-atom data is
effectively sorted at every rebuild of the neighbor lists. All the
available coprocessor threads on each Phi will be divided among MPI
tasks, unless the {tptask} option of the "-pk intel" "command-line
switch"_Section_start.html#start_7 is used to limit the coprocessor
switch"_Section_start.html#start_6 is used to limit the coprocessor
threads per MPI task.
[Restrictions:]
@ -466,7 +507,7 @@ supported.
Brown, W.M., Carrillo, J.-M.Y., Mishra, B., Gavhane, N., Thakker, F.M., De Kraker, A.R., Yamada, M., Ang, J.A., Plimpton, S.J., "Optimizing Classical Molecular Dynamics in LAMMPS," in Intel Xeon Phi Processor High Performance Programming: Knights Landing Edition, J. Jeffers, J. Reinders, A. Sodani, Eds. Morgan Kaufmann. :ulb,l
Brown, W. M., Semin, A., Hebenstreit, M., Khvostov, S., Raman, K., Plimpton, S.J. Increasing Molecular Dynamics Simulation Rates with an 8-Fold Increase in Electrical Power Efficiency. 2016 International Conference for High Performance Computing. In press. :l
Brown, W. M., Semin, A., Hebenstreit, M., Khvostov, S., Raman, K., Plimpton, S.J. "Increasing Molecular Dynamics Simulation Rates with an 8-Fold Increase in Electrical Power Efficiency."_http://dl.acm.org/citation.cfm?id=3014915 2016 High Performance Computing, Networking, Storage and Analysis, SC16: International Conference (pp. 82-95). :l
Brown, W.M., Carrillo, J.-M.Y., Gavhane, N., Thakkar, F.M., Plimpton, S.J. Optimizing Legacy Molecular Dynamics Software with Directive-Based Offload. Computer Physics Communications. 2015. 195: p. 95-101. :l
:ule

View File

@ -136,7 +136,7 @@ You must choose at build time whether to build for CPUs (OpenMP),
GPUs, or Phi.
You can do any of these in one line, using the src/Make.py script,
described in "Section 2.4"_Section_start.html#start_4 of the manual.
described in "Section 4"_Section_packages.html of the manual.
Type "Make.py -h" for help. If run from the src directory, these
commands will create src/lmp_kokkos_omp, lmp_kokkos_cuda, and
lmp_kokkos_phi. Note that the OMP and PHI options use
@ -144,7 +144,7 @@ src/MAKE/Makefile.mpi as the starting Makefile.machine. The CUDA
option uses src/MAKE/OPTIONS/Makefile.kokkos_cuda.
The latter two steps can be done using the "-k on", "-pk kokkos" and
"-sf kk" "command-line switches"_Section_start.html#start_7
"-sf kk" "command-line switches"_Section_start.html#start_6
respectively. Or the effect of the "-pk" or "-sf" switches can be
duplicated by adding the "package kokkos"_package.html or "suffix
kk"_suffix.html commands respectively to your input script.
@ -280,10 +280,10 @@ specify how many Phi coprocessors there are per node; each
coprocessors is simply treated as running some number of MPI tasks.
You must use the "-k on" "command-line
switch"_Section_start.html#start_7 to enable the KOKKOS package. It
switch"_Section_start.html#start_6 to enable the KOKKOS package. It
takes additional arguments for hardware settings appropriate to your
system. Those arguments are "documented
here"_Section_start.html#start_7. The two most commonly used
here"_Section_start.html#start_6. The two most commonly used
options are:
-k on t Nt g Ng :pre
@ -304,12 +304,12 @@ The "-k on" switch also issues a "package kokkos" command (with no
additional arguments) which sets various KOKKOS options to default
values, as discussed on the "package"_package.html command doc page.
Use the "-sf kk" "command-line switch"_Section_start.html#start_7,
Use the "-sf kk" "command-line switch"_Section_start.html#start_6,
which will automatically append "kk" to styles that support it. Use
the "-pk kokkos" "command-line switch"_Section_start.html#start_7 if
the "-pk kokkos" "command-line switch"_Section_start.html#start_6 if
you wish to change any of the default "package kokkos"_package.html
optionns set by the "-k on" "command-line
switch"_Section_start.html#start_7.
switch"_Section_start.html#start_6.
@ -323,7 +323,7 @@ However, when running in MPI-only mode with 1 thread per MPI task, it
will typically be faster to use "half" neighbor lists and set the
Newton flag to "on", just as is the case for non-accelerated pair
styles. You can do this with the "-pk" "command-line
switch"_Section_start.html#start_7.
switch"_Section_start.html#start_6.
[Or run with the KOKKOS package by editing an input script:]
@ -332,7 +332,7 @@ appropriate thread and GPU values for host=OMP or host=MIC or
device=CUDA are the same.
You must still use the "-k on" "command-line
switch"_Section_start.html#start_7 to enable the KOKKOS package, and
switch"_Section_start.html#start_6 to enable the KOKKOS package, and
specify its additional arguments for hardware options appropriate to
your system, as documented above.
@ -343,7 +343,7 @@ pair_style lj/cut/kk 2.5 :pre
You only need to use the "package kokkos"_package.html command if you
wish to change any of its option defaults, as set by the "-k on"
"command-line switch"_Section_start.html#start_7.
"command-line switch"_Section_start.html#start_6.
[Speed-ups to expect:]
@ -389,7 +389,7 @@ If N is the number of physical cores/node, then the number of MPI
tasks/node * number of threads/task should not exceed N, and should
typically equal N. Note that the default threads/task is 1, as set by
the "t" keyword of the "-k" "command-line
switch"_Section_start.html#start_7. If you do not change this, no
switch"_Section_start.html#start_6. If you do not change this, no
additional parallelism (beyond MPI) will be invoked on the host
CPU(s).
@ -415,21 +415,21 @@ For binding threads with the KOKKOS OMP option, use thread affinity
environment variables to force binding. With OpenMP 3.1 (gcc 4.7 or
later, intel 12 or later) setting the environment variable
OMP_PROC_BIND=true should be sufficient. For binding threads with the
KOKKOS pthreads option, compile LAMMPS the KOKKOS HWLOC=yes option, as
discussed in "Section 2.3.4"_Sections_start.html#start_3_4 of the
manual.
KOKKOS pthreads option, compile LAMMPS the KOKKOS HWLOC=yes option
(see "this section"_Section_packages.html#KOKKOS of the manual for
details).
[Running on GPUs:]
Insure the -arch setting in the machine makefile you are using,
e.g. src/MAKE/Makefile.cuda, is correct for your GPU hardware/software
(see "this section"_Section_start.html#start_3_4 of the manual for
e.g. src/MAKE/Makefile.cuda, is correct for your GPU hardware/software.
(see "this section"_Section_packages.html#KOKKOS of the manual for
details).
The -np setting of the mpirun command should set the number of MPI
tasks/node to be equal to the # of physical GPUs on the node.
Use the "-k" "command-line switch"_Section_commands.html#start_7 to
Use the "-k" "command-line switch"_Section_commands.html#start_6 to
specify the number of GPUs per node, and the number of threads per MPI
task. As above for multi-core CPUs (and no GPU), if N is the number
of physical cores/node, then the number of MPI tasks/node * number of

View File

@ -41,7 +41,7 @@ each MPI task running on a CPU.
The lines above illustrate how to include/build with the USER-OMP
package in two steps, using the "make" command. Or how to do it with
one command via the src/Make.py script, described in "Section
2.4"_Section_start.html#start_4 of the manual. Type "Make.py -h" for
4"_Section_packages.html of the manual. Type "Make.py -h" for
help.
Note that the CCFLAGS and LINKFLAGS settings in Makefile.machine must
@ -62,14 +62,14 @@ threads/task should not exceed the physical number of cores (on a
node), otherwise performance will suffer.
As in the lines above, use the "-sf omp" "command-line
switch"_Section_start.html#start_7, which will automatically append
switch"_Section_start.html#start_6, which will automatically append
"omp" to styles that support it. The "-sf omp" switch also issues a
default "package omp 0"_package.html command, which will set the
number of threads per MPI task via the OMP_NUM_THREADS environment
variable.
You can also use the "-pk omp Nt" "command-line
switch"_Section_start.html#start_7, to explicitly set Nt = # of OpenMP
switch"_Section_start.html#start_6, to explicitly set Nt = # of OpenMP
threads per MPI task to use, as well as additional options. Its
syntax is the same as the "package omp"_package.html command whose doc
page gives details, including the default values used if it is not

View File

@ -36,7 +36,7 @@ None.
The lines above illustrate how to build LAMMPS with the OPT package in
two steps, using the "make" command. Or how to do it with one command
via the src/Make.py script, described in "Section
2.4"_Section_start.html#start_4 of the manual. Type "Make.py -h" for
4"_Section_packages.html of the manual. Type "Make.py -h" for
help.
Note that if you use an Intel compiler to build with the OPT package,
@ -46,7 +46,7 @@ The Make.py command will add this automatically.
[Run with the OPT package from the command line:]
As in the lines above, use the "-sf opt" "command-line
switch"_Section_start.html#start_7, which will automatically append
switch"_Section_start.html#start_6, which will automatically append
"opt" to styles that support it.
[Or run with the OPT package by editing an input script:]

View File

@ -63,7 +63,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -94,7 +94,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -50,7 +50,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -55,7 +55,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -63,7 +63,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -53,7 +53,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -65,7 +65,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -55,7 +55,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -51,7 +51,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -50,7 +50,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -57,7 +57,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -57,7 +57,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -136,7 +136,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -394,7 +394,7 @@ weights. It assigns the same weight to each particle owned by a
processor based on the total computational time spent by that
processor. See details below on what time window is used. It uses
the same timing information as is used for the "MPI task timing
breakdown"_Section_start.html#start_8, namely, for sections {Pair},
breakdown"_Section_start.html#start_7, namely, for sections {Pair},
{Bond}, {Kspace}, and {Neigh}. The time spent in those portions of
the timestep are measured for each MPI rank, summed, then divided by
the number of particles owned by that processor. I.e. the weight is

View File

@ -56,7 +56,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -59,7 +59,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -62,7 +62,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -54,7 +54,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -55,7 +55,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -55,7 +55,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -53,7 +53,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -53,7 +53,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -30,7 +30,7 @@ The {oxdna/fene} and {oxdna2/fene} bond styles use the potential
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.
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
@ -43,8 +43,8 @@ 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
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.
@ -66,7 +66,7 @@ LAMMPS"_Section_start.html#start_3 section for more info on packages.
[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

View File

@ -88,7 +88,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -133,7 +133,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -32,12 +32,12 @@ Commands :h1
dimension
displace_atoms
dump
dump_custom_vtk
dump_h5md
dump_image
dump_modify
dump_molfile
dump_nc
dump_netcdf
dump_vtk
echo
fix
fix_modify

View File

@ -26,7 +26,7 @@ Define a computation that calculates the CNA (Common Neighbor
Analysis) pattern for each atom in the group. In solid-state systems
the CNA pattern is a useful measure of the local crystal structure
around an atom. The CNA methodology is described in "(Faken)"_#Faken
and "(Tsuzuki)"_#Tsuzuki.
and "(Tsuzuki)"_#Tsuzuki1.
Currently, there are five kinds of CNA patterns LAMMPS recognizes:
@ -93,5 +93,5 @@ above.
:link(Faken)
[(Faken)] Faken, Jonsson, Comput Mater Sci, 2, 279 (1994).
:link(Tsuzuki)
:link(Tsuzuki1)
[(Tsuzuki)] Tsuzuki, Branicio, Rino, Comput Phys Comm, 177, 518 (2007).

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 cnp/atom command :h3
[Syntax:]
compute ID group-ID cnp/atom cutoff :pre
ID, group-ID are documented in "compute"_compute.html command
cnp/atom = style name of this compute command
cutoff = cutoff distance for nearest neighbors (distance units) :ul
[Examples:]
compute 1 all cnp/atom 3.08 :pre
[Description:]
Define a computation that calculates the Common Neighborhood
Parameter (CNP) for each atom in the group. In solid-state systems
the CNP is a useful measure of the local crystal structure
around an atom and can be used to characterize whether the
atom is part of a perfect lattice, a local defect (e.g. a dislocation
or stacking fault), or at a surface.
The value of the CNP parameter will be 0.0 for atoms not in the
specified compute group. Note that normally a CNP calculation should
only be performed on single component systems.
This parameter is computed using the following formula from
"(Tsuzuki)"_#Tsuzuki2
:c,image(Eqs/cnp_eq.jpg)
where the index {j} goes over the {n}i nearest neighbors of atom
{i}, and the index {k} goes over the {n}ij common nearest neighbors
between atom {i} and atom {j}. Rik and Rjk are the vectors connecting atom
{k} to atoms {i} and {j}. The quantity in the double sum is computed
for each atom.
The CNP calculation is sensitive to the specified cutoff value.
You should ensure that the appropriate nearest neighbors of an atom are
found within the cutoff distance for the presumed crystal structure.
E.g. 12 nearest neighbor for perfect FCC and HCP crystals, 14 nearest
neighbors for perfect BCC crystals. These formulas can be used to
obtain a good cutoff distance:
:c,image(Eqs/cnp_cutoff.jpg)
where a is the lattice constant for the crystal structure concerned
and in the HCP case, x = (c/a) / 1.633, where 1.633 is the ideal c/a
for HCP crystals.
Also note that since the CNP calculation in LAMMPS uses the neighbors
of an owned atom to find the nearest neighbors of a ghost atom, the
following relation should also be satisfied:
:c,image(Eqs/cnp_cutoff2.jpg)
where Rc is the cutoff distance of the potential, Rs is the skin
distance as specified by the "neighbor"_neighbor.html command, and
cutoff is the argument used with the compute cnp/atom command. LAMMPS
will issue a warning if this is not the case.
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
{cnp/atom} style.
[Output info:]
This compute calculates a per-atom vector, which can be accessed by
any command that uses per-atom values from a compute as input. See
"Section 6.15"_Section_howto.html#howto_15 for an overview of
LAMMPS output options.
The per-atom vector values will be real positive numbers. Some typical CNP
values:
FCC lattice = 0.0
BCC lattice = 0.0
HCP lattice = 4.4 :pre
FCC (111) surface ~ 13.0
FCC (100) surface ~ 26.5
FCC dislocation core ~ 11 :pre
[Restrictions:]
This compute is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the "Making
LAMMPS"_Section_start.html#start_3 section for more info.
[Related commands:]
"compute cna/atom"_compute_cna_atom.html
"compute centro/atom"_compute_centro_atom.html
[Default:] none
:line
:link(Tsuzuki2)
[(Tsuzuki)] Tsuzuki, Branicio, Rino, Comput Phys Comm, 177, 518 (2007).

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@ -76,7 +76,9 @@ command for the types of the two atoms is used. For the {radius}
setting, the sum of the radii of the two particles is used as a
cutoff. For example, this is appropriate for granular particles which
only interact when they are overlapping, as computed by "granular pair
styles"_pair_gran.txt.
styles"_pair_gran.txt. Note that if a granular model defines atom
types such that all particles of a specific type are monodisperse
(same diameter), then the two settings are effectively identical.
Note that as atoms migrate from processor to processor, there will be
no consistent ordering of the entries within the local vector or array

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@ -117,7 +117,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -79,6 +79,9 @@ the two atoms is used. For the {radius} setting, the sum of the radii
of the two particles is used as a cutoff. For example, this is
appropriate for granular particles which only interact when they are
overlapping, as computed by "granular pair styles"_pair_gran.html.
Note that if a granular model defines atom types such that all
particles of a specific type are monodisperse (same diameter), then
the two settings are effectively identical.
If the inputs are bond, angle, etc attributes, the local data is
generated by looping over all the atoms owned on a processor and

View File

@ -180,9 +180,18 @@ will register an arbitrarily large spike at whatever distance they
happen to be at, and zero everywhere else. Coord(r) will show a step
change from zero to one at the location of the spike in g(r).
NOTE: compute rdf can handle dynamic groups and systems where atoms
are added or removed, but this causes that certain normalization
parameters need to be recomputed in every step and include collective
communication operations. This will reduce performance and limit
parallel efficiency and scaling. For systems, where only the type
of atoms changes (e.g. when using "fix atom/swap"_fix_atom_swap.html),
you need to explicitly request the dynamic normalization updates
via "compute_modify dynamic yes"_compute_modify.html
[Related commands:]
"fix ave/time"_fix_ave_time.html
"fix ave/time"_fix_ave_time.html, "compute_modify"_compute_modify.html
[Default:]

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@ -111,26 +111,26 @@ Coefficients parameterized by "(Fox)"_#Fox are assigned for each
atom type designating the chemical symbol and charge of each atom
type. Valid chemical symbols for compute saed are:
H: He: Li: Be: B:
C: N: O: F: Ne:
Na: Mg: Al: Si: P:
S: Cl: Ar: K: Ca:
Sc: Ti: V: Cr: Mn:
Fe: Co: Ni: Cu: Zn:
Ga: Ge: As: Se: Br:
Kr: Rb: Sr: Y: Zr:
Nb: Mo: Tc: Ru: Rh:
Pd: Ag: Cd: In: Sn:
Sb: Te: I: Xe: Cs:
Ba: La: Ce: Pr: Nd:
Pm: Sm: Eu: Gd: Tb:
Dy: Ho: Er: Tm: Yb:
Lu: Hf: Ta: W: Re:
Os: Ir: Pt: Au: Hg:
Tl: Pb: Bi: Po: At:
Rn: Fr: Ra: Ac: Th:
Pa: U: Np: Pu: Am:
Cm: Bk: Cf:tb(c=5,s=:)
H: He: Li: Be: B:
C: N: O: F: Ne:
Na: Mg: Al: Si: P:
S: Cl: Ar: K: Ca:
Sc: Ti: V: Cr: Mn:
Fe: Co: Ni: Cu: Zn:
Ga: Ge: As: Se: Br:
Kr: Rb: Sr: Y: Zr:
Nb: Mo: Tc: Ru: Rh:
Pd: Ag: Cd: In: Sn:
Sb: Te: I: Xe: Cs:
Ba: La: Ce: Pr: Nd:
Pm: Sm: Eu: Gd: Tb:
Dy: Ho: Er: Tm: Yb:
Lu: Hf: Ta: W: Re:
Os: Ir: Pt: Au: Hg:
Tl: Pb: Bi: Po: At:
Rn: Fr: Ra: Ac: Th:
Pa: U: Np: Pu: Am:
Cm: Bk: Cf:tb(c=5,s=:)
If the {echo} keyword is specified, compute saed will provide extra

View File

@ -231,11 +231,12 @@ the numbers of columns are 930, 2790, and 5580, respectively.
If the {quadratic} keyword value is set to 1, then additional
columns are appended to each per-atom array, corresponding to
a matrix of quantities that are products of two bispectrum components. If the
number of bispectrum components is {K}, then the number of matrix elements
is {K}^2. These are output in subblocks of {K}^2 columns, using the same
ordering of columns and sub-blocks as was used for the bispectrum
components.
the products of all distinct pairs of bispectrum components. If the
number of bispectrum components is {K}, then the number of distinct pairs
is {K}({K}+1)/2. These are output in subblocks of {K}({K}+1)/2 columns, using the same
ordering of sub-blocks as was used for the bispectrum
components. Within each sub-block, the ordering is upper-triangular,
(1,1),(1,2)...(1,{K}),(2,1)...({K}-1,{K}-1),({K}-1,{K}),({K},{K})
These values can be accessed by any command that uses per-atom values
from a compute as input. See "Section

View File

@ -79,7 +79,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -86,7 +86,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -17,6 +17,7 @@ Computes :h1
compute_chunk_atom
compute_cluster_atom
compute_cna_atom
compute_cnp_atom
compute_com
compute_com_chunk
compute_contact_atom

View File

@ -10,53 +10,93 @@ create_bonds command :h3
[Syntax:]
create_bonds group-ID group2-ID btype rmin rmax :pre
create_bonds style args ... keyword value ... :pre
group-ID = ID of first group
group2-ID = ID of second group, bonds will be between atoms in the 2 groups
btype = bond type of created bonds
rmin = minimum distance between pair of atoms to bond together
rmax = minimum distance between pair of atoms to bond together :ul
style = {many} or {single/bond} or {single/angle} or {single/dihedral} :ule,l
{many} args = group-ID group2-ID btype rmin rmax
group-ID = ID of first group
group2-ID = ID of second group, bonds will be between atoms in the 2 groups
btype = bond type of created bonds
rmin = minimum distance between pair of atoms to bond together
rmax = minimum distance between pair of atoms to bond together
{single/bond} args = btype batom1 batom2
btype = bond type of new bond
batom1,batom2 = atom IDs for two atoms in bond
{single/angle} args = atype aatom1 aatom2 aatom3
atype = bond type of new angle
aatom1,aatom2,aatom3 = atom IDs for three atoms in angle
{single/dihedral} args = dtype datom1 datom2 datom3 datom4
dtype = bond type of new dihedral
datom1,datom2,datom3,datom4 = atom IDs for four atoms in dihedral :pre
zero or more keyword/value pairs may be appended :l
keyword = {special} :l
{special} value = {yes} or {no} :pre
:ule
[Examples:]
create_bonds all all 1 1.0 1.2
create_bonds surf solvent 3 2.0 2.4 :pre
create_bonds many all all 1 1.0 1.2
create_bonds many surf solvent 3 2.0 2.4
create_bond single/bond 1 1 2
create_bond single/angle 5 52 98 107 special no :pre
[Description:]
Create bonds between pairs of atoms that meet specified distance
criteria. The bond interactions can then be computed during a
simulation by the bond potential defined by the
"bond_style"_bond_style.html and "bond_coeff"_bond_coeff.html
commands. This command is useful for adding bonds to a system,
e.g. between nearest neighbors in a lattice of atoms, without having
to enumerate all the bonds in the data file read by the
"read_data"_read_data.html command.
Create bonds between pairs of atoms that meet a specified distance
criteria. Or create a single bond, angle, or dihedral between 2, 3,
or 4 specified atoms.
Note that the flexibility of this command is limited. It can be used
several times to create different types of bond at different
distances. But it cannot typically create all the bonds that would
normally be defined in a complex system of molecules. Also note that
this command does not add any 3-body or 4-body interactions which,
depending on your model, may be induced by added bonds,
e.g. "angle"_angle_style.html, "dihedral"_dihedral_style.html, or
"improper"_improper_style.html interactions.
The new bond (angle, dihedral) interactions will then be computed
during a simulation by the bond (angle, dihedral) potential defined by
the "bond_style"_bond_style.html, "bond_coeff"_bond_coeff.html,
"angle_style"_angle_style.html, "angle_coeff"_angle_coeff.html,
"dihedral_style"_dihedral_style.html,
"dihedral_coeff"_dihedral_coeff.html commands.
All created bonds will be between pairs of atoms I,J where I is in one
of the two specified groups, and J is in the other. The two groups
can be the same, e.g. group "all". The created bonds will be of bond
type {btype}, where {btype} must be a value between 1 and the number
of bond types defined. This maximum value is set by the "bond types"
field in the header of the data file read by the
"read_data"_read_data.html command, or via the optional "bond/types"
argument of the "create_box"_create_box.html command.
The {many} style is useful for adding bonds to a system, e.g. between
nearest neighbors in a lattice of atoms, without having to enumerate
all the bonds in the data file read by the "read_data"_read_data.html
command.
The {single} styles are useful for adding bonds, angles, dihedrals
to a system incrementally, then continuing a simulation.
Note that this command does not auto-create any angle or dihedral
interactions when a bond is added. Nor does it auto-create any bonds
when an angle or dihedral is added. Or auto-create any angles when a
dihedral is added. Thus the flexibility of this command is limited.
It can be used several times to create different types of bond at
different distances. But it cannot typically auto-create all the
bonds or angles or dihedral that would normally be defined in a data
file for a complex system of molecules.
NOTE: If the system has no bonds (angles, dihedrals) to begin with, or
if more bonds per atom are being added than currently exist, then you
must insure that the number of bond types and the maximum number of
bonds per atom are set to large enough values. And similarly for
angles and dihedrals. Otherwise an error may occur when too many
bonds (angles, dihedrals) are added to an atom. If the
"read_data"_read_data.html command is used to define the system, these
parameters can be set via the "bond types" and "extra bond per atom"
fields in the header section of the data file. If the
"create_box"_create_box.html command is used to define the system,
these 2 parameters can be set via its optional "bond/types" and
"extra/bond/per/atom" arguments. And similarly for angles and
dihedrals. See the doc pages for these 2 commands for details.
:line
The {many} style will create bonds between pairs of atoms I,J where I
is in one of the two specified groups, and J is in the other. The two
groups can be the same, e.g. group "all". The created bonds will be
of bond type {btype}, where {btype} must be a value between 1 and the
number of bond types defined.
For a bond to be created, an I,J pair of atoms must be a distance D
apart such that {rmin} <= D <= {rmax}.
The following settings must have been made in an input
script before this command is used:
The following settings must have been made in an input script before
this style is used:
special_bonds weight for 1-2 interactions must be 0.0
a "pair_style"_pair_style.html must be defined
@ -69,8 +109,8 @@ cannot appear in the neighbor list, to avoid creation of duplicate
bonds. The neighbor list for all atom type pairs must also extend to
a distance that encompasses the {rmax} for new bonds to create.
An additional requirement is that your system must be ready to perform
a simulation. This means, for example, that all
An additional requirement for this style is that your system must be
ready to perform a simulation. This means, for example, that all
"pair_style"_pair_style.html coefficients be set via the
"pair_coeff"_pair_coeff.html command. A "bond_style"_bond_style.html
command and all bond coefficients must also be set, even if no bonds
@ -83,17 +123,58 @@ executes, e.g. if you wish to use long-range Coulombic interactions
via the "kspace_style"_kspace_style.html command for your subsequent
simulation.
NOTE: If the system has no bonds to begin with, or if more bonds per
atom are being added than currently exist, then you must insure that
the number of bond types and the maximum number of bonds per atom are
set to large enough values. Otherwise an error may occur when too
many bonds are added to an atom. If the "read_data"_read_data.html
command is used to define the system, these 2 parameters can be set
via the "bond types" and "extra bond per atom" fields in the header
section of the data file. If the "create_box"_create_box.html command
is used to define the system, these 2 parameters can be set via its
optional "bond/types" and "extra/bond/per/atom" arguments. See the
doc pages for the 2 commands for details.
:line
The {single/bond} style creates a single bond of type {btype} between
two atoms with IDs {batom1} and {batom2}. {Btype} must be a value
between 1 and the number of bond types defined.
The {single/angle} style creates a single angle of type {atype}
between three atoms with IDs {aatom1}, {aatom2}, and {aatom3}. The
ordering of the atoms is the same as in the {Angles} section of a data
file read by the "read_data"_read_data command. I.e. the 3 atoms are
ordered linearly within the angle; the central atom is {aatom2}.
{Atype} must be a value between 1 and the number of angle types
defined.
The {single/dihedral} style creates a single dihedral of type {btype}
between two atoms with IDs {batom1} and {batom2}. The ordering of the
atoms is the same as in the {Dihedrals} section of a data file read by
the "read_data"_read_data command. I.e. the 4 atoms are ordered
linearly within the dihedral. {Dtype} must be a value between 1 and
the number of dihedral types defined.
:line
The keyword {special} controls whether an internal list of special
bonds is created after one or more bonds, or a single angle or
dihedral is added to the system.
The default value is {yes}. A value of {no} cannot be used
with the {many} style.
This is an expensive operation since the bond topology for the system
must be walked to find all 1-2, 1-3, 1-4 interactions to store in an
internal list, which is used when pairwise interactions are weighted;
see the "special_bonds"_special_bonds.html command for details.
Thus if you are adding a few bonds or a large list of angles all at
the same time, by using this command repeatedly, it is more efficient
to only trigger the internal list to be created once, after the last
bond (or angle, or dihedral) is added:
create_bonds single/bond 5 52 98 special no
create_bonds single/bond 5 73 74 special no
...
create_bonds single/bond 5 17 386 special no
create_bonds single/bond 4 112 183 special yes :pre
Note that you MUST insure the internal list is re-built after the last
bond (angle, dihedral) is added, before performing a simulation.
Otherwise pairwise interactions will not be properly excluded or
weighted. LAMMPS does NOT check that you have done this correctly.
:line
[Restrictions:]
@ -105,4 +186,6 @@ molecule template files via the "molecule"_molecule.html and
"create_atoms"_create_atoms.html, "delete_bonds"_delete_bonds.html
[Default:] none
[Default:]
The keyword default is special = yes.

View File

@ -128,7 +128,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for
@ -138,7 +138,15 @@ more instructions on how to use the accelerated styles effectively.
[Restrictions:]
This dihedral style can only be used if LAMMPS was built with the
When using run_style "respa"_run_style.html, these dihedral styles
must be assigned to the same r-RESPA level as {pair} or {outer}.
When used in combination with CHARMM pair styles, the 1-4
"special_bonds"_special_bonds.html scaling factors must be set to 0.0.
Otherwise non-bonded contributions for these 1-4 pairs will be
computed multiple times.
These dihedral styles can only be used if LAMMPS was built with the
MOLECULE package. See the "Making
LAMMPS"_Section_start.html#start_3 section for more info on packages.

View File

@ -153,7 +153,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -64,7 +64,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -55,7 +55,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -65,7 +65,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -58,7 +58,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -52,7 +52,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -52,7 +52,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -60,7 +60,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -53,7 +53,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -14,10 +14,11 @@ dihedral_style spherical :pre
[Examples:]
dihedral_coeff 1 1 286.1 1 124 1 1 90.0 0 1 90.0 0
dihedral_coeff 1 3 286.1 1 114 1 1 90 0 1 90.0 0 &
17.3 0 0.0 0 1 158 1 0 0.0 0 &
15.1 0 0.0 0 0 0.0 0 1 167.3 1 :pre
dihedral_coeff 1 1 286.1 1 124 1 1 90.0 0 1 90.0 0
dihedral_coeff 1 3 69.3 1 93.9 1 1 90 0 1 90 0 &
49.1 0 0.00 0 1 74.4 1 0 0.00 0 &
25.2 0 0.00 0 0 0.00 0 1 48.1 1
:pre
[Description:]
@ -35,13 +36,14 @@ the dihedral interaction even if it requires adding additional terms to
the expansion (as was done in the second example). A careful choice of
parameters can prevent singularities that occur with traditional
force-fields whenever theta1 or theta2 approach 0 or 180 degrees.
The last example above corresponds to an interaction with a single energy
minima located at phi=114, theta1=158, theta2=167.3 degrees, and it remains
minima located near phi=93.9, theta1=74.4, theta2=48.1 degrees, and it remains
numerically stable at all angles (phi, theta1, theta2). In this example,
the coefficients 17.3, and 15.1 can be physically interpreted as the
the coefficients 49.1, and 25.2 can be physically interpreted as the
harmonic spring constants for theta1 and theta2 around their minima.
The coefficient 286.1 is the harmonic spring constant for phi after
division by sin(158)*sin(167.3) (the minima positions for theta1 and theta2).
The coefficient 69.3 is the harmonic spring constant for phi after
division by sin(74.4)*sin(48.1) (the minima positions for theta1 and theta2).
The following coefficients must be defined for each dihedral type via the
"dihedral_coeff"_dihedral_coeff.html command as in the example above, or in

View File

@ -16,7 +16,8 @@ dump-ID = ID of dump to modify :ulb,l
one or more keyword/value pairs may be appended :l
these keywords apply to various dump styles :l
keyword = {append} or {buffer} or {element} or {every} or {fileper} or {first} or {flush} or {format} or {image} or {label} or {nfile} or {pad} or {precision} or {region} or {scale} or {sort} or {thresh} or {unwrap} :l
{append} arg = {yes} or {no}
{append} arg = {yes} or {no} or {at} N
N = index of frame written upon first dump
{buffer} arg = {yes} or {no}
{element} args = E1 E2 ... EN, where N = # of atom types
E1,...,EN = element name, e.g. C or Fe or Ga
@ -41,6 +42,7 @@ keyword = {append} or {buffer} or {element} or {every} or {fileper} or {first} o
{region} arg = region-ID or "none"
{scale} arg = {yes} or {no}
{sfactor} arg = coordinate scaling factor (> 0.0)
{thermo} arg = {yes} or {no}
{tfactor} arg = time scaling factor (> 0.0)
{sort} arg = {off} or {id} or N or -N
off = no sorting of per-atom lines within a snapshot
@ -139,12 +141,13 @@ and {dcd}. It also applies only to text output files, not to binary
or gzipped or image/movie files. If specified as {yes}, then dump
snapshots are appended to the end of an existing dump file. If
specified as {no}, then a new dump file will be created which will
overwrite an existing file with the same name. This keyword can only
take effect if the dump_modify command is used after the
"dump"_dump.html command, but before the first command that causes
dump snapshots to be output, e.g. a "run"_run.html or
"minimize"_minimize.html command. Once the dump file has been opened,
this keyword has no further effect.
overwrite an existing file with the same name. If the {at} option is present
({netcdf} only), then the frame to append to can be specified. Negative values
are counted from the end of the file. This keyword can only take effect if the
dump_modify command is used after the "dump"_dump.html command, but before the
first command that causes dump snapshots to be output, e.g. a "run"_run.html or
"minimize"_minimize.html command. Once the dump file has been opened, this
keyword has no further effect.
:line
@ -413,6 +416,13 @@ most effective when the typical magnitude of position data is between
:line
The {thermo} keyword ({netcdf} only) triggers writing of "thermo"_thermo.html
information to the dump file alongside per-atom data. The data included in the
dump file is identical to the data specified by
"thermo_style"_thermo_style.html.
:line
The {region} keyword only applies to the dump {custom}, {cfg},
{image}, and {movie} styles. If specified, only atoms in the region
will be written to the dump file or included in the image/movie. Only

View File

@ -24,7 +24,7 @@ args = list of atom attributes, same as for "dump_style custom"_dump.html :l,ule
[Examples:]
dump 1 all netcdf 100 traj.nc type x y z vx vy vz
dump_modify 1 append yes at -1 global c_thermo_pe c_thermo_temp c_thermo_press
dump_modify 1 append yes at -1 thermo yes
dump 1 all netcdf/mpiio 1000 traj.nc id type x y z :pre
[Description:]
@ -44,7 +44,7 @@ rank.
NetCDF files can be directly visualized via the following tools:
Ovito (http://www.ovito.org/). Ovito supports the AMBER convention and
all of the above extensions. :ule,b
all extensions of this dump style. :ule,b
VMD (http://www.ks.uiuc.edu/Research/vmd/). :l
@ -52,15 +52,9 @@ AtomEye (http://www.libatoms.org/). The libAtoms version of AtomEye
contains a NetCDF reader that is not present in the standard
distribution of AtomEye. :l,ule
In addition to per-atom data, global data can be included in the dump
file, which are the kinds of values output by the
"thermo_style"_thermo_style.html command . See "Section howto
6.15"_Section_howto.html#howto_15 for an explanation of per-atom
versus global data. The global output written into the dump file can
be from computes, fixes, or variables, by prefixing the compute/fix ID
or variable name with "c_" or "f_" or "v_" respectively, as in the
example above. These global values are specified via the "dump_modify
global"_dump_modify.html command.
In addition to per-atom data, "thermo"_thermo.html data can be included in the
dump file. The data included in the dump file is identical to the data specified
by "thermo_style"_thermo_style.html.
:link(netcdf-home,http://www.unidata.ucar.edu/software/netcdf/)
:link(pnetcdf-home,http://trac.mcs.anl.gov/projects/parallel-netcdf/)

View File

@ -16,7 +16,7 @@ ID = user-assigned name for the dump
group-ID = ID of the group of atoms to be dumped
vtk = style of dump command (other styles {atom} or {cfg} or {dcd} or {xtc} or {xyz} or {local} or {custom} are discussed on the "dump"_dump.html doc page)
N = dump every this many timesteps
file = name of file to write dump info to
file = name of file to write dump info to
args = same as arguments for "dump_style custom"_dump.html :ul
[Examples:]
@ -83,7 +83,7 @@ Triclinic simulation boxes (non-orthogonal) are saved as
hexahedrons in either legacy .vtk or .vtu XML format.
Style {vtk} allows you to specify a list of atom attributes to be
written to the dump file for each atom. The list of possible attributes
written to the dump file for each atom. The list of possible attributes
is the same as for the "dump_style custom"_dump.html command; see
its doc page for a listing and an explanation of each attribute.

View File

@ -26,7 +26,7 @@ command to the screen and/or log file as it is read and processed. If
an input script has errors, it can be useful to look at echoed output
to see the last command processed.
The "command-line switch"_Section_start.html#start_5 -echo can be used
The "command-line switch"_Section_start.html#start_6 -echo can be used
in place of this command.
[Restrictions:] none

View File

@ -47,7 +47,7 @@ keyword = {scale} or {reset} :l
fix 1 all adapt 1 pair soft a 1 1 v_prefactor
fix 1 all adapt 1 pair soft a 2* 3 v_prefactor
fix 1 all adapt 1 pair lj/cut epsilon * * v_scale1 coul/cut scale 3 3 v_scale2 scale yes reset yes
fix 1 all adapt 10 atom diameter v_size
fix 1 all adapt 10 atom diameter v_size :pre
variable ramp_up equal "ramp(0.01,0.5)"
fix stretch all adapt 1 bond harmonic r0 1 v_ramp_up :pre

View File

@ -117,7 +117,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -77,7 +77,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -245,8 +245,8 @@ appear the system is converging to your specified pressure. The
solution for this is to either (a) zero the velocities of all atoms
before performing the minimization, or (b) make sure you are
monitoring the pressure without its kinetic component. The latter can
be done by outputting the pressure from the fix this command creates
(see below) or a pressure fix you define yourself.
be done by outputting the pressure from the pressure compute this
command creates (see below) or a pressure compute you define yourself.
NOTE: Because pressure is often a very sensitive function of volume,
it can be difficult for the minimizer to equilibrate the system the
@ -308,7 +308,7 @@ thermo_modify command (or in two separate commands), then the order in
which the keywords are specified is important. Note that a "pressure
compute"_compute_pressure.html defines its own temperature compute as
an argument when it is specified. The {temp} keyword will override
this (for the pressure compute being used by fix npt), but only if the
this (for the pressure compute being used by fix box/relax), but only if the
{temp} keyword comes after the {press} keyword. If the {temp} keyword
comes before the {press} keyword, then the new pressure compute
specified by the {press} keyword will be unaffected by the {temp}
@ -316,18 +316,16 @@ setting.
This fix computes a global scalar which can be accessed by various
"output commands"_Section_howto.html#howto_15. The scalar is the
pressure-volume energy, plus the strain energy, if it exists.
This fix computes a global scalar which can be accessed by various
"output commands"_Section_howto.html#howto_15. The scalar is given
by the energy expression shown above. The energy values reported
at the end of a minimization run under "Minimization stats" include
this energy, and so differ from what LAMMPS normally reports as
potential energy. This fix does not support the
"fix_modify"_fix_modify.html {energy} option,
because that would result in double-counting of the fix energy in the
minimization energy. Instead, the fix energy can be explicitly
added to the potential energy using one of these two variants:
pressure-volume energy, plus the strain energy, if it exists,
as described above.
The energy values reported at the
end of a minimization run under "Minimization stats" include this
energy, and so differ from what LAMMPS normally reports as potential
energy. This fix does not support the "fix_modify"_fix_modify.html
{energy} option, because that would result in double-counting of the
fix energy in the minimization energy. Instead, the fix energy can be
explicitly added to the potential energy using one of these two
variants:
variable emin equal pe+f_1 :pre

View File

@ -557,7 +557,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for
@ -565,8 +565,10 @@ more instructions on how to use the accelerated styles effectively.
[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
This fix will restore the initial box settings from "binary restart
files"_restart.html, which allows the fix to be properly continue
deformation, when using the start/stop options of the "run"_run.html
command. 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"_Section_howto.html#howto_15.

View File

@ -41,7 +41,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -45,14 +45,14 @@ species {j} in particle {i}, {u_j} is the internal energy of species j,
{DeltaH_f,j} is the heat of formation of species {j}, N is the number of
molecules represented by the coarse-grained particle, kb is the
Boltzmann constant, and T is the temperature of the system. Additionally,
it is possible to modify the concentration-dependent particle internal
energy relation by adding an energy correction, temperature-dependent
it is possible to modify the concentration-dependent particle internal
energy relation by adding an energy correction, temperature-dependent
correction, and/or a molecule-dependent correction. An energy correction can
be specified as a constant (in energy units). A temperature correction can be
specified by multiplying a temperature correction coefficient by the
internal temperature. A molecular correction can be specified by
by multiplying a molecule correction coefficient by the average number of
product gas particles in the coarse-grain particle.
be specified as a constant (in energy units). A temperature correction can be
specified by multiplying a temperature correction coefficient by the
internal temperature. A molecular correction can be specified by
by multiplying a molecule correction coefficient by the average number of
product gas particles in the coarse-grain particle.
Fix {eos/table/rx} creates interpolation tables of length {N} from {m}
internal energy values of each species {u_j} listed in a file as a
@ -72,12 +72,12 @@ The second filename specifies a file containing heat of formation
{DeltaH_f,j} for each species.
In cases where the coarse-grain particle represents a single molecular
species (i.e., no reactions occur and fix {rx} is not present in the input file),
fix {eos/table/rx} can be applied in a similar manner to fix {eos/table}
within a non-reactive DPD simulation. In this case, the heat of formation
species (i.e., no reactions occur and fix {rx} is not present in the input file),
fix {eos/table/rx} can be applied in a similar manner to fix {eos/table}
within a non-reactive DPD simulation. In this case, the heat of formation
filename is replaced with the heat of formation value for the single species.
Additionally, the energy correction and temperature correction coefficients may
also be specified as fix arguments.
Additionally, the energy correction and temperature correction coefficients may
also be specified as fix arguments.
:line
@ -138,8 +138,8 @@ used as the species name must correspond with the tags used to define
the reactions with the "fix rx"_fix_rx.html command.
Alternatively, corrections to the EOS can be included by specifying
three additional columns that correspond to the energy correction,
the temperature correction coefficient and molecule correction
three additional columns that correspond to the energy correction,
the temperature correction coefficient and molecule correction
coefficient. In this case, the format of the file is as follows:
# HEAT OF FORMATION TABLE (one or more comment or blank lines) :pre

View File

@ -70,8 +70,8 @@ minimization"_minimize.html.
[Restrictions:]
This fix is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the "Making
This fix is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the "Making
LAMMPS"_Section_start.html#start_3 section for more info.
Currently, it does not support "molecule templates"_molecule.html.

View File

@ -45,7 +45,7 @@ LAMMPS"_Section_start.html#start_3 section 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"_Section_start.html#start_7 when you invoke LAMMPS, or you can
switch"_Section_start.html#start_6 when you invoke LAMMPS, or you can
use the "suffix"_suffix.html command in your input script.
See "Section 5"_Section_accelerate.html of the manual for

View File

@ -383,6 +383,9 @@ called. Reneighboring is required.
Can be run in parallel, but aspects of the GCMC part will not scale
well in parallel. Only usable for 3D simulations.
When using fix gcmc in combination with fix shake or fix rigid,
only gcmc exchange moves are supported.
Note that very lengthy simulations involving insertions/deletions of
billions of gas molecules may run out of atom or molecule IDs and
trigger an error, so it is better to run multiple shorter-duration
@ -406,7 +409,7 @@ the user for each subsequent fix gcmc command.
[Default:]
The option defaults are mol = no, maxangle = 10, overlap_cutoff = 0.0,
fugacity_coeff = 1, and full_energy = no,
fugacity_coeff = 1, and full_energy = no,
except for the situations where full_energy is required, as
listed above.

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