diff --git a/doc/Makefile b/doc/Makefile index a8e2ba5300..ad80017b7e 100644 --- a/doc/Makefile +++ b/doc/Makefile @@ -214,7 +214,7 @@ style_check : $(VENV) package_check : $(VENV) @(\ - . $(VENV)/bin/activate ; env PYTHONWARNINGS= PYTHONDONTWRITEBYTECODE=1 \\ + . $(VENV)/bin/activate ; env PYTHONWARNINGS= PYTHONDONTWRITEBYTECODE=1 \ python utils/check-packages.py -s ../src -d src ;\ deactivate ;\ ) diff --git a/doc/src/Commands_fix.rst b/doc/src/Commands_fix.rst index 5b331af1aa..89cf3e880a 100644 --- a/doc/src/Commands_fix.rst +++ b/doc/src/Commands_fix.rst @@ -264,6 +264,7 @@ OPT. * :doc:`wall/lj1043 ` * :doc:`wall/lj126 ` * :doc:`wall/lj93 (k) ` + * :doc:`wall/lepton ` * :doc:`wall/morse ` * :doc:`wall/piston ` * :doc:`wall/reflect (k) ` @@ -271,4 +272,5 @@ OPT. * :doc:`wall/region ` * :doc:`wall/region/ees ` * :doc:`wall/srd ` + * :doc:`wall/table ` * :doc:`widom ` diff --git a/doc/src/Tools.rst b/doc/src/Tools.rst index 20e3d2c094..2eae1aabc7 100644 --- a/doc/src/Tools.rst +++ b/doc/src/Tools.rst @@ -320,7 +320,8 @@ eam generate tool ----------------------------- The tools/eam_generate directory contains several one-file C programs -that convert an analytic formula into a tabulated :doc:`embedded atom method (EAM) ` setfl potential file. The potentials they +that convert an analytic formula into a tabulated :doc:`embedded atom +method (EAM) ` setfl potential file. The potentials they produce are in the potentials directory, and can be used with the :doc:`pair_style eam/alloy ` command. diff --git a/doc/src/fix.rst b/doc/src/fix.rst index 71f8bf9e16..7d505fec63 100644 --- a/doc/src/fix.rst +++ b/doc/src/fix.rst @@ -416,6 +416,7 @@ accelerated styles exist. * :doc:`wall/lj1043 ` - Lennard-Jones 10--4--3 wall * :doc:`wall/lj126 ` - Lennard-Jones 12--6 wall * :doc:`wall/lj93 ` - Lennard-Jones 9--3 wall +* :doc:`wall/lepton ` - Custom Lepton expression wall * :doc:`wall/morse ` - Morse potential wall * :doc:`wall/piston ` - moving reflective piston wall * :doc:`wall/reflect ` - reflecting wall(s) @@ -423,6 +424,7 @@ accelerated styles exist. * :doc:`wall/region ` - use region surface as wall * :doc:`wall/region/ees ` - use region surface as wall for ellipsoidal particles * :doc:`wall/srd ` - slip/no-slip wall for SRD particles +* :doc:`wall/table ` - Tabulated potential wall wall * :doc:`widom ` - Widom insertions of atoms or molecules Restrictions diff --git a/doc/src/fix_wall.rst b/doc/src/fix_wall.rst index 9f20470bbc..7b38b6035c 100644 --- a/doc/src/fix_wall.rst +++ b/doc/src/fix_wall.rst @@ -4,7 +4,9 @@ .. index:: fix wall/lj1043 .. index:: fix wall/colloid .. index:: fix wall/harmonic +.. index:: fix wall/lepton .. index:: fix wall/morse +.. index:: fix wall/table fix wall/lj93 command ===================== @@ -23,20 +25,31 @@ fix wall/colloid command fix wall/harmonic command ========================= +fix wall/lepton command +========================= + fix wall/morse command ====================== +fix wall/table command +========================= + Syntax """""" .. parsed-literal:: - fix ID group-ID style face args ... keyword value ... + fix ID group-ID style [tabstyle] [N] face args ... keyword value ... * ID, group-ID are documented in :doc:`fix ` command -* style = *wall/lj93* or *wall/lj126* or *wall/lj1043* or *wall/colloid* or *wall/harmonic* or *wall/morse* +* style = *wall/lj93* or *wall/lj126* or *wall/lj1043* or *wall/colloid* or *wall/harmonic* or *wall/lepton* or *wall/morse* or *wall/table* +* tabstyle = *linear* or *spline* = method of table interpolation (only applies to *wall/table*) +* N = use N values in *linear* or *spline* interpolation (only applies to *wall/table*) * one or more face/arg pairs may be appended * face = *xlo* or *xhi* or *ylo* or *yhi* or *zlo* or *zhi* + +.. spacer + * args for styles *lj93* or *lj126* or *lj1043* or *colloid* or *harmonic* .. parsed-literal:: @@ -50,7 +63,19 @@ Syntax epsilon can be a variable (see below) sigma = size factor for wall-particle interaction (distance units) sigma can be a variable (see below) - cutoff = distance from wall at which wall-particle interaction is cut off (distance units) + cutoff = distance from wall at which wall-particle interactions are cut off (distance units) + +* args for style *lepton* + + .. parsed-literal:: + + args = coord expression cutoff + coord = position of wall = EDGE or constant or variable + EDGE = current lo or hi edge of simulation box + constant = number like 0.0 or -30.0 (distance units) + variable = :doc:`equal-style variable ` like v_x or v_wiggle + expression = Lepton expression for the potential (energy units) + cutoff = distance from wall at which wall-particle interactions are cut off (distance units) * args for style *morse* @@ -67,7 +92,20 @@ Syntax alpha can be a variable (see below) r_0 = distance of the potential minimum from the face of region (distance units) r_0 can be a variable (see below) - cutoff = distance from wall at which wall-particle interaction is cut off (distance units) + cutoff = distance from wall at which wall-particle interactions are cut off (distance units) + +* args for style *table* + + .. parsed-literal:: + + args = coord filename keyword cutoff + coord = position of wall = EDGE or constant or variable + EDGE = current lo or hi edge of simulation box + constant = number like 0.0 or -30.0 (distance units) + variable = :doc:`equal-style variable ` like v_x or v_wiggle + filename = file containing tabulated energy and force values + keyword = section identifier to select a specific table in table file + cutoff = distance from wall at which wall-particle interactions are cut off (distance units) * zero or more keyword/value pairs may be appended * keyword = *units* or *fld* or *pbc* @@ -91,9 +129,13 @@ Examples fix wallhi all wall/lj93 xlo -1.0 1.0 1.0 2.5 units box fix wallhi all wall/lj93 xhi EDGE 1.0 1.0 2.5 + fix wallhi all wall/harmonic xhi EDGE 100.0 0.0 4.0 units box fix wallhi all wall/morse xhi EDGE 1.0 1.0 1.0 2.5 units box fix wallhi all wall/lj126 v_wiggle 23.2 1.0 1.0 2.5 fix zwalls all wall/colloid zlo 0.0 1.0 1.0 0.858 zhi 40.0 1.0 1.0 0.858 + fix xwall mobile wall/table spline 200 EDGE -5.0 walltab.dat HARMONIC 4.0 + fix xwalls mobile wall/lepton xlo -5.0 "k*(r-rc)^2;k=100.0" 4.0 xhi 5.0 "k*(r-rc)^2;k=100.0" 4.0 + Description """"""""""" @@ -103,7 +145,7 @@ wall that interacts with the atoms in the group by generating a force on the atom in a direction perpendicular to the wall. The energy of wall-particle interactions depends on the style. -For style *wall/lj93*, the energy E is given by the 9/3 potential: +For style *wall/lj93*, the energy E is given by the 9-3 Lennard-Jones potential: .. math:: @@ -111,7 +153,7 @@ For style *wall/lj93*, the energy E is given by the 9/3 potential: \left(\frac{\sigma}{r}\right)^3 \right] \qquad r < r_c -For style *wall/lj126*, the energy E is given by the 12/6 potential: +For style *wall/lj126*, the energy E is given by the 12-6 Lennard-Jones potential: .. math:: @@ -119,7 +161,7 @@ For style *wall/lj126*, the energy E is given by the 12/6 potential: \left(\frac{\sigma}{r}\right)^6 \right] \qquad r < r_c -For style *wall/lj1043*, the energy E is given by the 10/4/3 potential: +For style *wall/lj1043*, the energy E is given by the 10-4-3 Lennard-Jones potential: .. math:: @@ -138,8 +180,8 @@ of the :doc:`pair_style colloid ` potential: & \left. - \frac{1}{6} \left(\frac{2R(D+R) + D(D+2R) \left[ \ln D - \ln (D+2R) \right]}{D(D+2R)} \right) \right] \qquad r < r_c -For style *wall/harmonic*, the energy E is given by a harmonic spring -potential: +For style *wall/harmonic*, the energy E is given by a repulsive-only harmonic +spring potential: .. math:: @@ -152,6 +194,56 @@ For style *wall/morse*, the energy E is given by a Morse potential: E = D_0 \left[ e^{- 2 \alpha (r - r_0)} - 2 e^{- \alpha (r - r_0)} \right] \qquad r < r_c +For style *wall/lepton*, the energy E is provided as an Lepton +expression string using "r" as the distance variable. The `Lepton +library `_, that the *wall/lepton* +style interfaces with, evaluates this expression string at run time to +compute the wall-particle energy. It also creates an analytical +representation of the first derivative of this expression with respect +to "r" and then uses that to compute the force between the wall and +atoms in the fix group. The Lepton expression must be either enclosed +in quotes or must not contain any whitespace so that LAMMPS recognizes +it as a single keyword. + +Optionally, the expression may use "rc" to refer to the cutoff distance +for the given wall. Further constants in the expression can be defined +in the same string as additional expressions separated by semi-colons. +The expression "k*(r-rc)^2;k=100.0" represents a repulsive-only harmonic +spring as in fix *wall/harmonic* with a force constant *K* (same as +:math:`\epsilon` above) of 100 energy units. More details on the Lepton +expression strings are given below. + +For style *wall/table*, the energy E and forces are determined from +interpolation tables listed in one or more files as a function of +distance. The interpolation tables are used to evaluate energy and +forces between particles and the wall similar to how analytic formulas +are used for the other wall styles. + +The interpolation tables are created as a pre-computation by fitting +cubic splines to the file values and interpolating energy and force +values at each of *N* distances. During a simulation, the tables are +used to interpolate energy and force values as needed for each wall and +particle separated by a distance *R*\ . The interpolation is done in +one of two styles: *linear* or *spline*\ . + +For the *linear* style, the distance *R* is used to find the 2 +surrounding table values from which an energy or force is computed by +linear interpolation. + +For the *spline* style, cubic spline coefficients are computed and +stored for each of the *N* values in the table, one set of splines for +energy, another for force. Note that these splines are different than +the ones used to pre-compute the *N* values. Those splines were fit +to the *Nfile* values in the tabulated file, where often *Nfile* < +*N*\ . The distance *R* is used to find the appropriate set of spline +coefficients which are used to evaluate a cubic polynomial which +computes the energy or force. + +For each wall a filename and a keyword must be provided as in the +examples above. The filename specifies a file containing tabulated +energy and force values. The keyword specifies a section of the file. +The format of this file is described below. + In all cases, *r* is the distance from the particle to the wall at position *coord*, and :math:`r_c` is the *cutoff* distance at which the particle and wall no longer interact. The energy of the wall @@ -180,11 +272,12 @@ box parameters and timestep and elapsed time. Thus it is easy to specify a time-dependent wall position. See examples below. For the *wall/lj93* and *wall/lj126* and *wall/lj1043* styles, -:math:`\epsilon` and :math:`\sigma` are the usual Lennard-Jones parameters, which -determine the strength and size of the particle as it interacts with -the wall. Epsilon has energy units. Note that this :math:`\epsilon` and -:math:`\sigma` may be different than any :math:`\epsilon` or :math:`\sigma` values defined -for a pair style that computes particle-particle interactions. +:math:`\epsilon` and :math:`\sigma` are the usual Lennard-Jones +parameters, which determine the strength and size of the particle as it +interacts with the wall. Epsilon has energy units. Note that this +:math:`\epsilon` and :math:`\sigma` may be different than any +:math:`\epsilon` or :math:`\sigma` values defined for a pair style that +computes particle-particle interactions. The *wall/lj93* interaction is derived by integrating over a 3d half-lattice of Lennard-Jones 12/6 particles. The *wall/lj126* @@ -207,11 +300,11 @@ are the number density of the constituent particles, in the wall and colloid respectively, in units of 1/volume. The *wall/colloid* interaction is derived by integrating over -constituent LJ particles of size :math:`\sigma` within the colloid particle -and a 3d half-lattice of Lennard-Jones 12/6 particles of size :math:`\sigma` -in the wall. As mentioned in the preceding paragraph, the density of -particles in the wall and colloid can be different, as specified by -the :math:`\epsilon` prefactor. +constituent LJ particles of size :math:`\sigma` within the colloid +particle and a 3d half-lattice of Lennard-Jones 12/6 particles of size +:math:`\sigma` in the wall. As mentioned in the preceding paragraph, +the density of particles in the wall and colloid can be different, as +specified by the :math:`\epsilon` prefactor. For the *wall/harmonic* style, :math:`\epsilon` is effectively the spring constant K, and has units (energy/distance\^2). The input parameter @@ -220,20 +313,21 @@ spring is at the *cutoff*\ . This is a repulsive-only spring since the interaction is truncated at the *cutoff* For the *wall/morse* style, the three parameters are in this order: -:math:`D_0` the depth of the potential, :math:`\alpha` the width parameter, and -:math:`r_0` the location of the minimum. :math:`D_0` has energy units, :math:`\alpha` -inverse distance units, and :math:`r_0` distance units. +:math:`D_0` the depth of the potential, :math:`\alpha` the width +parameter, and :math:`r_0` the location of the minimum. :math:`D_0` has +energy units, :math:`\alpha` inverse distance units, and :math:`r_0` +distance units. -For any wall, the :math:`\epsilon` and/or :math:`\sigma` and/or :math:`\alpha` parameter can -be specified -as an :doc:`equal-style variable `, in which case it should be +For any wall that supports them, the :math:`\epsilon` and/or +:math:`\sigma` and/or :math:`\alpha` parameter can be specified as an +:doc:`equal-style variable `, in which case it should be specified as v_name, where name is the variable name. As with a -variable wall position, the variable is evaluated each timestep and -the result becomes the current epsilon or sigma of the wall. -Equal-style variables can specify formulas with various mathematical -functions, and include :doc:`thermo_style ` command -keywords for the simulation box parameters and timestep and elapsed -time. Thus it is easy to specify a time-dependent wall interaction. +variable wall position, the variable is evaluated each timestep and the +result becomes the current epsilon or sigma of the wall. Equal-style +variables can specify formulas with various mathematical functions, and +include :doc:`thermo_style ` command keywords for the +simulation box parameters and timestep and elapsed time. Thus it is +easy to specify a time-dependent wall interaction. .. note:: @@ -266,20 +360,19 @@ define the lattice spacings. The *fld* keyword can be used with a *yes* setting to invoke the wall constraint before pairwise interactions are computed. This allows an implicit FLD model using :doc:`pair_style lubricateU ` -to include the wall force in its calculations. If the setting is -*no*, wall forces are imposed after pairwise interactions, in the -usual manner. +to include the wall force in its calculations. If the setting is *no*, +wall forces are imposed after pairwise interactions, in the usual +manner. -The *pbc* keyword can be used with a *yes* setting to allow walls to -be specified in a periodic dimension. See the -:doc:`boundary ` command for options on simulation box -boundaries. The default for *pbc* is *no*, which means the system -must be non-periodic when using a wall. But you may wish to use a -periodic box. E.g. to allow some particles to interact with the wall -via the fix group-ID, and others to pass through it and wrap around a -periodic box. In this case you should ensure that the wall if -sufficiently far enough away from the box boundary. If you do not, -then particles may interact with both the wall and with periodic +The *pbc* keyword can be used with a *yes* setting to allow walls to be +specified in a periodic dimension. See the :doc:`boundary ` +command for options on simulation box boundaries. The default for *pbc* +is *no*, which means the system must be non-periodic when using a wall. +But you may wish to use a periodic box. E.g. to allow some particles to +interact with the wall via the fix group-ID, and others to pass through +it and wrap around a periodic box. In this case you should ensure that +the wall if sufficiently far enough away from the box boundary. If you +do not, then particles may interact with both the wall and with periodic images on the other side of the box, which is probably not what you want. @@ -328,6 +421,57 @@ perturbation on the particles: ---------- +.. include:: lepton_expression.rst + +---------- + +Table file format +""""""""""""""""" + +Suitable tables for use with fix *wall/table* can be created by the +Python code in the ``tools/tabulate`` folder of the LAMMPS source code +distribution. + +The format of a tabulated file is as follows (without the parenthesized +comments): + +.. parsed-literal:: + + # Tabulated wall potential UNITS: real + + HARMONIC (keyword is the first text on a line) + N 100 FP 200 200 + (blank line) + 1 0.04 1568.16 792.00 (index, distance to wall, energy, force) + 2 0.08 1536.64 784.00 + 3 0.12 1505.44 776.00 + ... + 99 3.96 0.16 8.00 + 100 4.00 0 0 + +A section begins with a non-blank line whose first character is not a +"#"; blank lines or lines starting with "#" can be used as comments +between sections. The first line begins with a keyword which identifies +the section. The line can contain additional text, but the initial text +must match the argument specified in the fix *wall/table* command. The +next line lists (in any order) one or more parameters for the table. +Each parameter is a keyword followed by one or more numeric values. + +The parameter "N" is required and its value is the number of table +entries that follow. Note that this may be different than the *N* +specified in the fix *wall/table* command. Let Ntable = *N* in the fix +command, and Nfile = "N" in the tabulated file. What LAMMPS does is a +preliminary interpolation by creating splines using the Nfile tabulated +values as nodal points. It uses these to interpolate as needed to +generate energy and force values at Ntable different points. The +resulting tables of length Ntable are then used as described above, when +computing energy and force for wall-particle interactions. This means that +if you want the interpolation tables of length Ntable to match exactly +what is in the tabulated file (with effectively no preliminary +interpolation), you should set Ntable = Nfile. + +---------- + Restart, fix_modify, output, run start/stop, minimize info """"""""""""""""""""""""""""""""""""""""""""""""""""""""""" @@ -354,16 +498,15 @@ fix. This allows to set at which level of the :doc:`r-RESPA ` integrator the fix is adding its forces. Default is the outermost level. -This fix computes a global scalar energy and a global vector of -forces, which can be accessed by various :doc:`output commands -`. Note that the scalar energy is the sum of -interactions with all defined walls. If you want the energy on a -per-wall basis, you need to use multiple fix wall commands. The -length of the vector is equal to the number of walls defined by the -fix. Each vector value is the normal force on a specific wall. Note -that an outward force on a wall will be a negative value for *lo* -walls and a positive value for *hi* walls. The scalar and vector -values calculated by this fix are "extensive". +This fix computes a global scalar energy and a global vector of forces, +which can be accessed by various :doc:`output commands `. +Note that the scalar energy is the sum of interactions with all defined +walls. If you want the energy on a per-wall basis, you need to use +multiple fix wall commands. The length of the vector is equal to the +number of walls defined by the fix. Each vector value is the normal +force on a specific wall. Note that an outward force on a wall will be +a negative value for *lo* walls and a positive value for *hi* walls. +The scalar and vector values calculated by this fix are "extensive". No parameter of this fix can be used with the *start/stop* keywords of the :doc:`run ` command. @@ -386,7 +529,11 @@ invoked by the :doc:`minimize ` command. Restrictions """""""""""" - none + +Fix *wall/lepton* is part of the LEPTON package and only enabled if +LAMMPS was built with this package. See the :doc:`Build package +` page for more info. + Related commands """""""""""""""" diff --git a/doc/utils/sphinx-config/false_positives.txt b/doc/utils/sphinx-config/false_positives.txt index fdacbf9c4c..d03300439f 100644 --- a/doc/utils/sphinx-config/false_positives.txt +++ b/doc/utils/sphinx-config/false_positives.txt @@ -3487,6 +3487,7 @@ sz Sz Tabbernor tabinner +tabstyle Tadmor Tafipolsky tagID diff --git a/examples/wall/in.wall.lepton b/examples/wall/in.wall.lepton new file mode 100644 index 0000000000..76d8e71f01 --- /dev/null +++ b/examples/wall/in.wall.lepton @@ -0,0 +1,110 @@ +units real +atom_style bond +boundary f p p +region box block -5.000000000000001 5.000000000000001 -5 5 -5 5 +create_box 1 box bond/types 1 extra/bond/per/atom 1 extra/special/per/atom 1 + +pair_style zero 5.0 +pair_coeff * * +mass * 1.0 +bond_style zero +bond_coeff * 1.0 + +create_atoms 1 single -4.0 0.0 0.0 +create_atoms 1 single 4.0 0.0 0.0 +create_atoms 1 single -5.0 0.0 0.0 +create_atoms 1 single 5.0 0.0 0.0 +create_bonds single/bond 1 3 1 +create_bonds single/bond 1 4 2 + +group move id 1:2 +write_restart walltest.restart + +variable name string wall-harmonic +include wall.inc + +fix 1 move wall/harmonic xlo -5.0 100 0.0 4.0 xhi 5.0 100 1.0 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string lepton-harmonic +include wall.inc + +fix 1 move wall/lepton xlo -5.0 "k*(r-rc)^2;k=100.0" 4.0 xhi 5.0 "k*(r-rc)^2;k=100.0" 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string bond-harmonic +include wall.inc + +bond_style harmonic +bond_coeff 1 100 4.0 +run 5 post no + +variable name string pair-harmonic +include wall.inc + +pair_style harmonic/cut +pair_coeff 1 1 100 4.0 +run 5 post no + +variable eps index 0.02 +variable sig index 2.0 +variable name string wall-lj126 +include wall.inc + +fix 1 move wall/lj126 xlo -5.0 ${eps} ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string lepton-lj126 +include wall.inc + +fix 1 move wall/lepton xlo -5.0 "4.0*epsilon*((sigma/r)^12 - (sigma/r)^6);epsilon=v_eps;sigma=v_sig" 4.0 & + xhi 5.0 "4.0*epsilon*((sigma/r)^12 - (sigma/r)^6);epsilon=v_eps;sigma=v_sig" 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string pair-lj126 +include wall.inc + +pair_style lj/cut 4.0 +pair_coeff 1 1 ${eps} ${sig} +pair_modify shift yes +run 5 post no + +variable d0 index 20.0 +variable al index 2.0 +variable r0 index 1.2 + +variable name string wall-morse +include wall.inc + +fix 1 move wall/morse xlo -5.0 ${d0} ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string lepton-morse +include wall.inc + +fix 1 move wall/lepton xlo -5.0 "d0*(-1.0 + (1.0 - ralpha) * (1.0 - ralpha));ralpha=exp(-alpha*(r-r0));d0=v_d0;alpha=v_al;r0=v_r0" 4.0 & + xhi 5.0 "d0*(-1.0 + (1.0 - ralpha) * (1.0 - ralpha));ralpha=exp(-alpha*(r-r0));d0=v_d0;alpha=v_al;r0=v_r0" 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string bond-morse +include wall.inc + +bond_style morse +bond_coeff 1 ${d0} ${al} ${r0} +run 5 post no + +variable name string pair-morse +include wall.inc + +pair_style morse 4.0 +pair_coeff 1 1 ${d0} ${al} ${r0} +pair_modify shift yes +run 5 post no + +shell rm -f walltest.restart diff --git a/examples/wall/in.wall.table b/examples/wall/in.wall.table new file mode 100644 index 0000000000..f5b8232ef8 --- /dev/null +++ b/examples/wall/in.wall.table @@ -0,0 +1,129 @@ +units real +atom_style bond +boundary f p p +region box block -5.000000000000001 5.000000000000001 -5 5 -5 5 +create_box 1 box bond/types 1 extra/bond/per/atom 1 extra/special/per/atom 1 + +pair_style zero 5.0 +pair_coeff * * +mass * 1.0 +bond_style zero +bond_coeff * 1.0 + +create_atoms 1 single -4.0 0.0 0.0 +create_atoms 1 single 4.0 0.0 0.0 +create_atoms 1 single -5.0 0.0 0.0 +create_atoms 1 single 5.0 0.0 0.0 +create_bonds single/bond 1 3 1 +create_bonds single/bond 1 4 2 + +group move id 1:2 +write_restart walltest.restart + +variable name string wall-harmonic +include wall.inc + +fix 1 move wall/harmonic xlo -5.0 100 0.0 4.0 xhi 5.0 100 1.0 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string table-harmonic +include wall.inc + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat HARMONIC 4.0 xhi 5.0 walltab.dat HARMONIC 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string spline-harmonic +include wall.inc + +fix 1 move wall/table spline 200 xlo -5.0 walltab.dat HARMONIC 4.0 xhi 5.0 walltab.dat HARMONIC 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string bond-harmonic +include wall.inc + +bond_style harmonic +bond_coeff 1 100 4.0 +run 5 post no + +variable name string pair-harmonic +include wall.inc + +pair_style harmonic/cut +pair_coeff 1 1 100 4.0 +run 5 post no + +variable eps index 0.02 +variable sig index 2.0 +variable name string wall-lj126 +include wall.inc + +fix 1 move wall/lj126 xlo -5.0 ${eps} ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string table-lj126 +include wall.inc + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat LJ126 4.0 xhi 5.0 walltab.dat LJ126 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string spline-lj126 +include wall.inc + +fix 1 move wall/table spline 200 xlo -5.0 walltab.dat LJ126 4.0 xhi 5.0 walltab.dat LJ126 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string pair-lj126 +include wall.inc + +pair_style lj/cut 4.0 +pair_coeff 1 1 ${eps} ${sig} +pair_modify shift yes +run 5 post no + +variable d0 index 20.0 +variable al index 2.0 +variable r0 index 1.2 + +variable name string wall-morse +include wall.inc + +fix 1 move wall/morse xlo -5.0 ${d0} ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string table-morse +include wall.inc + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat MORSE 4.0 xhi 5.0 walltab.dat MORSE 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string spline-morse +include wall.inc + +fix 1 move wall/table spline 1000 xlo -5.0 walltab.dat MORSE 4.0 xhi 5.0 walltab.dat MORSE 4.0 +fix_modify 1 energy yes +run 5 post no + +variable name string bond-morse +include wall.inc + +bond_style morse +bond_coeff 1 ${d0} ${al} ${r0} +run 5 post no + +variable name string pair-morse +include wall.inc + +pair_style morse 4.0 +pair_coeff 1 1 ${d0} ${al} ${r0} +pair_modify shift yes +run 5 post no + +shell rm -f walltest.restart diff --git a/examples/wall/log.23Feb23.wall.lepton.g++.1 b/examples/wall/log.23Feb23.wall.lepton.g++.1 new file mode 100644 index 0000000000..5d555b2717 --- /dev/null +++ b/examples/wall/log.23Feb23.wall.lepton.g++.1 @@ -0,0 +1,882 @@ +LAMMPS (8 Feb 2023) + using 1 OpenMP thread(s) per MPI task +units real +atom_style bond +boundary f p p +region box block -5.000000000000001 5.000000000000001 -5 5 -5 5 +create_box 1 box bond/types 1 extra/bond/per/atom 1 extra/special/per/atom 1 +Created orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + +pair_style zero 5.0 +pair_coeff * * +mass * 1.0 +bond_style zero +bond_coeff * 1.0 + +create_atoms 1 single -4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single -5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_bonds single/bond 1 3 1 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds +create_bonds single/bond 1 4 2 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +group move id 1:2 +2 atoms in group move +write_restart walltest.restart +System init for write_restart ... +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard + +variable name string wall-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/harmonic xlo -5.0 100 0.0 4.0 xhi 5.0 100 1.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 7.6828e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string lepton-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lepton xlo -5.0 "k*(r-rc)^2;k=100.0" 4.0 xhi 5.0 "k*(r-rc)^2;k=100.0" 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 0.00134915 on 1 procs for 5 steps with 4 atoms + + +variable name string bond-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style harmonic +bond_coeff 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +WARNING: Communication cutoff 7 is shorter than a bond length based estimate of 8. This may lead to errors. (src/comm.cpp:723) +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 194283.6024 91313.53086 1737.367544 25.51012833 1762.877672 12.75506417 +Loop time of 4.6572e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string pair-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style harmonic/cut +pair_coeff 1 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair harmonic/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.43 | 4.43 | 4.43 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 170540.4005 97560.47089 1525.045619 190.8165235 1715.862142 178.0614593 +Loop time of 8.4058e-05 on 1 procs for 5 steps with 4 atoms + + +variable eps index 0.02 +variable sig index 2.0 +variable name string wall-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lj126 xlo -5.0 ${eps} ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 2.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.1224609 645.1224609 0 + 1 178153.8707 72825.53278 1593.128544 0.2259591031 1593.354503 0 + 2 178262.3593 72869.88065 1594.098696 -0.02237405364 1594.076322 0 + 3 178259.9436 72868.89314 1594.077094 -0.003385746252 1594.073708 0 + 4 178259.4975 72868.71081 1594.073105 0 1594.073105 0 + 5 178259.4975 72868.71081 1594.073105 0 1594.073105 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 4.3942e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string lepton-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lepton xlo -5.0 "4.0*epsilon*((sigma/r)^12 - (sigma/r)^6);epsilon=v_eps;sigma=v_sig" 4.0 xhi 5.0 "4.0*epsilon*((sigma/r)^12 - (sigma/r)^6);epsilon=v_eps;sigma=v_sig" 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.1224609 645.1224609 0 + 1 178153.8707 72825.53278 1593.128544 0.2259591031 1593.354503 0 + 2 178262.3593 72869.88065 1594.098696 -0.02237405364 1594.076322 0 + 3 178259.9436 72868.89314 1594.077094 -0.003385746252 1594.073708 0 + 4 178259.4975 72868.71081 1594.073105 0 1594.073105 0 + 5 178259.4975 72868.71081 1594.073105 0 1594.073105 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.00298781 on 1 procs for 5 steps with 4 atoms + + +variable name string pair-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style lj/cut 4.0 +pair_coeff 1 1 ${eps} ${sig} +pair_coeff 1 1 0.02 ${sig} +pair_coeff 1 1 0.02 2.0 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair lj/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.43 | 4.43 | 4.43 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 178343.7047 0 645.1224609 645.1224609 322.5612305 + 1 178153.8707 72925.96146 1593.128544 0.2259591031 1593.354503 0.1129795516 + 2 178262.3593 72867.28485 1594.098696 -0.02237405364 1594.076322 -0.01118702682 + 3 178260.8147 72867.80305 1594.084884 -0.007499601847 1594.077384 -0.005806728722 + 4 176007.6835 72778.53677 1573.936415 2.772305717 1576.708721 2.772305717 + 5 1.132219912e+27 4.628275436e+26 1.012479748e+25 3.761972158e+12 1.012479748e+25 3.761972158e+12 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 4.4455e-05 on 1 procs for 5 steps with 4 atoms + + +variable d0 index 20.0 +variable al index 2.0 +variable r0 index 1.2 + +variable name string wall-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/morse xlo -5.0 ${d0} ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 1.2 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905654 -30.02905654 0 + 1 146.0893547 59.71823711 1.30639385 -31.40065042 -30.09425657 0 + 2 485.8091411 198.5884977 4.34431431 -34.55987817 -30.21556386 0 + 3 822.0828974 336.0500941 7.351418888 -37.63613582 -30.28471693 0 + 4 1018.806679 416.4666136 9.110607565 -39.39265114 -30.28204357 0 + 5 1050.331347 429.3532307 9.392514704 -39.63687095 -30.24435625 0 +Loop time of 7.6505e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string lepton-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lepton xlo -5.0 "d0*(-1.0 + (1.0 - ralpha) * (1.0 - ralpha));ralpha=exp(-alpha*(r-r0));d0=v_d0;alpha=v_al;r0=v_r0" 4.0 xhi 5.0 "d0*(-1.0 + (1.0 - ralpha) * (1.0 - ralpha));ralpha=exp(-alpha*(r-r0));d0=v_d0;alpha=v_al;r0=v_r0" 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905654 -30.02905654 0 + 1 146.0893547 59.71823711 1.30639385 -31.40065042 -30.09425657 0 + 2 485.8091411 198.5884977 4.34431431 -34.55987817 -30.21556386 0 + 3 822.0828974 336.0500941 7.351418888 -37.63613582 -30.28471693 0 + 4 1018.806679 416.4666136 9.110607565 -39.39265114 -30.28204357 0 + 5 1050.331347 429.3532307 9.392514704 -39.63687095 -30.24435625 0 +Loop time of 0.00266357 on 1 procs for 5 steps with 4 atoms + + +variable name string bond-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style morse +bond_coeff 1 ${d0} ${al} ${r0} +bond_coeff 1 20.0 ${al} ${r0} +bond_coeff 1 20.0 2.0 ${r0} +bond_coeff 1 20.0 2.0 1.2 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 9.675661328 9.675661328 4.837830664 + 1 146.0893547 2514.939772 1.30639385 8.304067455 9.610461305 4.152033728 + 2 485.8091411 2063.804037 4.34431431 5.144839701 9.489154012 2.572419851 + 3 822.0828974 1456.368913 7.351418888 2.06858205 9.420000938 1.034291025 + 4 1018.806679 823.4383177 9.110607565 0.3120667313 9.422674297 0.1560333657 + 5 1050.331347 253.0262957 9.392514704 0.06784692056 9.460361624 0.03392346028 +Loop time of 0.000120428 on 1 procs for 5 steps with 4 atoms + + +variable name string pair-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style morse 4.0 +pair_coeff 1 1 ${d0} ${al} ${r0} +pair_coeff 1 1 20.0 ${al} ${r0} +pair_coeff 1 1 20.0 2.0 ${r0} +pair_coeff 1 1 20.0 2.0 1.2 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair morse, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.43 | 4.43 | 4.43 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 -30.02905654 -30.02905654 -15.01452827 + 1 146.0893547 2514.939772 1.30639385 -31.40065042 -30.09425657 -15.70032521 + 2 485.8091411 2063.804037 4.34431431 -34.55987817 -30.21556386 -17.27993908 + 3 822.0828974 1456.368913 7.351418888 -37.63613582 -30.28471693 -18.81806791 + 4 1018.806679 823.4383177 9.110607565 -39.39265114 -30.28204357 -19.69632557 + 5 1050.331347 253.0262957 9.392514704 -39.63687095 -30.24435625 -19.81843547 +Loop time of 3.6356e-05 on 1 procs for 5 steps with 4 atoms + + +shell rm -f walltest.restart +Total wall time: 0:00:00 diff --git a/examples/wall/log.23Feb23.wall.lepton.g++.4 b/examples/wall/log.23Feb23.wall.lepton.g++.4 new file mode 100644 index 0000000000..7820f2a9ae --- /dev/null +++ b/examples/wall/log.23Feb23.wall.lepton.g++.4 @@ -0,0 +1,882 @@ +LAMMPS (8 Feb 2023) + using 1 OpenMP thread(s) per MPI task +units real +atom_style bond +boundary f p p +region box block -5.000000000000001 5.000000000000001 -5 5 -5 5 +create_box 1 box bond/types 1 extra/bond/per/atom 1 extra/special/per/atom 1 +Created orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + +pair_style zero 5.0 +pair_coeff * * +mass * 1.0 +bond_style zero +bond_coeff * 1.0 + +create_atoms 1 single -4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single -5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_bonds single/bond 1 3 1 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds +create_bonds single/bond 1 4 2 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.001 seconds + +group move id 1:2 +2 atoms in group move +write_restart walltest.restart +System init for write_restart ... +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard + +variable name string wall-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/harmonic xlo -5.0 100 0.0 4.0 xhi 5.0 100 1.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 0.000266179 on 4 procs for 5 steps with 4 atoms + + +variable name string lepton-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lepton xlo -5.0 "k*(r-rc)^2;k=100.0" 4.0 xhi 5.0 "k*(r-rc)^2;k=100.0" 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 0.00230794 on 4 procs for 5 steps with 4 atoms + + +variable name string bond-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style harmonic +bond_coeff 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +WARNING: Communication cutoff 7 is shorter than a bond length based estimate of 8. This may lead to errors. (src/comm.cpp:723) +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 194283.6024 91313.53086 1737.367544 25.51012833 1762.877672 12.75506417 +Loop time of 0.000358068 on 4 procs for 5 steps with 4 atoms + + +variable name string pair-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style harmonic/cut +pair_coeff 1 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair harmonic/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.38 | 4.56 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 170540.4005 97560.47089 1525.045619 190.8165235 1715.862142 178.0614593 +Loop time of 0.000341881 on 4 procs for 5 steps with 4 atoms + + +variable eps index 0.02 +variable sig index 2.0 +variable name string wall-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lj126 xlo -5.0 ${eps} ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 2.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.1224609 645.1224609 0 + 1 178153.8707 72825.53278 1593.128544 0.2259591031 1593.354503 0 + 2 178262.3593 72869.88065 1594.098696 -0.02237405364 1594.076322 0 + 3 178259.9436 72868.89314 1594.077094 -0.003385746252 1594.073708 0 + 4 178259.4975 72868.71081 1594.073105 0 1594.073105 0 + 5 178259.4975 72868.71081 1594.073105 0 1594.073105 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.000345376 on 4 procs for 5 steps with 4 atoms + + +variable name string lepton-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lepton xlo -5.0 "4.0*epsilon*((sigma/r)^12 - (sigma/r)^6);epsilon=v_eps;sigma=v_sig" 4.0 xhi 5.0 "4.0*epsilon*((sigma/r)^12 - (sigma/r)^6);epsilon=v_eps;sigma=v_sig" 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.1224609 645.1224609 0 + 1 178153.8707 72825.53278 1593.128544 0.2259591031 1593.354503 0 + 2 178262.3593 72869.88065 1594.098696 -0.02237405364 1594.076322 0 + 3 178259.9436 72868.89314 1594.077094 -0.003385746252 1594.073708 0 + 4 178259.4975 72868.71081 1594.073105 0 1594.073105 0 + 5 178259.4975 72868.71081 1594.073105 0 1594.073105 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.00332789 on 4 procs for 5 steps with 4 atoms + + +variable name string pair-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style lj/cut 4.0 +pair_coeff 1 1 ${eps} ${sig} +pair_coeff 1 1 0.02 ${sig} +pair_coeff 1 1 0.02 2.0 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair lj/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.38 | 4.56 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 178343.7047 0 645.1224609 645.1224609 322.5612305 + 1 178153.8707 72925.96146 1593.128544 0.2259591031 1593.354503 0.1129795516 + 2 178262.3593 72867.28485 1594.098696 -0.02237405364 1594.076322 -0.01118702682 + 3 178260.8147 72867.80305 1594.084884 -0.007499601847 1594.077384 -0.005806728722 + 4 176007.6835 72778.53677 1573.936415 2.772305717 1576.708721 2.772305717 + 5 1.132219912e+27 4.628275436e+26 1.012479748e+25 3.761972158e+12 1.012479748e+25 3.761972158e+12 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.000404238 on 4 procs for 5 steps with 4 atoms + + +variable d0 index 20.0 +variable al index 2.0 +variable r0 index 1.2 + +variable name string wall-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/morse xlo -5.0 ${d0} ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 1.2 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905654 -30.02905654 0 + 1 146.0893547 59.71823711 1.30639385 -31.40065042 -30.09425657 0 + 2 485.8091411 198.5884977 4.34431431 -34.55987817 -30.21556386 0 + 3 822.0828974 336.0500941 7.351418888 -37.63613582 -30.28471693 0 + 4 1018.806679 416.4666136 9.110607565 -39.39265114 -30.28204357 0 + 5 1050.331347 429.3532307 9.392514704 -39.63687095 -30.24435625 0 +Loop time of 0.000748817 on 4 procs for 5 steps with 4 atoms + + +variable name string lepton-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lepton xlo -5.0 "d0*(-1.0 + (1.0 - ralpha) * (1.0 - ralpha));ralpha=exp(-alpha*(r-r0));d0=v_d0;alpha=v_al;r0=v_r0" 4.0 xhi 5.0 "d0*(-1.0 + (1.0 - ralpha) * (1.0 - ralpha));ralpha=exp(-alpha*(r-r0));d0=v_d0;alpha=v_al;r0=v_r0" 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905654 -30.02905654 0 + 1 146.0893547 59.71823711 1.30639385 -31.40065042 -30.09425657 0 + 2 485.8091411 198.5884977 4.34431431 -34.55987817 -30.21556386 0 + 3 822.0828974 336.0500941 7.351418888 -37.63613582 -30.28471693 0 + 4 1018.806679 416.4666136 9.110607565 -39.39265114 -30.28204357 0 + 5 1050.331347 429.3532307 9.392514704 -39.63687095 -30.24435625 0 +Loop time of 0.00347272 on 4 procs for 5 steps with 4 atoms + + +variable name string bond-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.001 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style morse +bond_coeff 1 ${d0} ${al} ${r0} +bond_coeff 1 20.0 ${al} ${r0} +bond_coeff 1 20.0 2.0 ${r0} +bond_coeff 1 20.0 2.0 1.2 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 9.675661328 9.675661328 4.837830664 + 1 146.0893547 2514.939772 1.30639385 8.304067455 9.610461305 4.152033728 + 2 485.8091411 2063.804037 4.34431431 5.144839701 9.489154012 2.572419851 + 3 822.0828974 1456.368913 7.351418888 2.06858205 9.420000938 1.034291025 + 4 1018.806679 823.4383177 9.110607565 0.3120667313 9.422674297 0.1560333657 + 5 1050.331347 253.0262957 9.392514704 0.06784692056 9.460361624 0.03392346028 +Loop time of 0.000859458 on 4 procs for 5 steps with 4 atoms + + +variable name string pair-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style morse 4.0 +pair_coeff 1 1 ${d0} ${al} ${r0} +pair_coeff 1 1 20.0 ${al} ${r0} +pair_coeff 1 1 20.0 2.0 ${r0} +pair_coeff 1 1 20.0 2.0 1.2 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair morse, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.38 | 4.56 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 -30.02905654 -30.02905654 -15.01452827 + 1 146.0893547 2514.939772 1.30639385 -31.40065042 -30.09425657 -15.70032521 + 2 485.8091411 2063.804037 4.34431431 -34.55987817 -30.21556386 -17.27993908 + 3 822.0828974 1456.368913 7.351418888 -37.63613582 -30.28471693 -18.81806791 + 4 1018.806679 823.4383177 9.110607565 -39.39265114 -30.28204357 -19.69632557 + 5 1050.331347 253.0262957 9.392514704 -39.63687095 -30.24435625 -19.81843547 +Loop time of 0.00029769 on 4 procs for 5 steps with 4 atoms + + +shell rm -f walltest.restart +Total wall time: 0:00:00 diff --git a/examples/wall/log.23Feb23.wall.table.g++.1 b/examples/wall/log.23Feb23.wall.table.g++.1 new file mode 100644 index 0000000000..f734be7403 --- /dev/null +++ b/examples/wall/log.23Feb23.wall.table.g++.1 @@ -0,0 +1,1116 @@ +LAMMPS (8 Feb 2023) + using 1 OpenMP thread(s) per MPI task +units real +atom_style bond +boundary f p p +region box block -5.000000000000001 5.000000000000001 -5 5 -5 5 +create_box 1 box bond/types 1 extra/bond/per/atom 1 extra/special/per/atom 1 +Created orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + +pair_style zero 5.0 +pair_coeff * * +mass * 1.0 +bond_style zero +bond_coeff * 1.0 + +create_atoms 1 single -4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.001 seconds +create_atoms 1 single -5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_bonds single/bond 1 3 1 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds +create_bonds single/bond 1 4 2 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +group move id 1:2 +2 atoms in group move +write_restart walltest.restart +System init for write_restart ... +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard + +variable name string wall-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/harmonic xlo -5.0 100 0.0 4.0 xhi 5.0 100 1.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 4.6507e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string table-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat HARMONIC 4.0 xhi 5.0 walltab.dat HARMONIC 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800.000356 1800.000356 0 + 1 16146.37291 6600.295604 144.3878119 1652.527723 1796.915535 0 + 2 59294.04011 24238.149 530.232812 1258.437853 1788.670665 0 + 3 115302.7492 47133.32419 1031.086781 746.8824148 1777.969196 0 + 4 165817.4572 67782.66799 1482.811029 285.5061521 1768.317181 0 + 5 194283.6024 79419.02582 1737.367544 25.51090543 1762.878449 0 +Loop time of 5.7549e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string spline-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table spline 200 xlo -5.0 walltab.dat HARMONIC 4.0 xhi 5.0 walltab.dat HARMONIC 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 7.285e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string bond-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style harmonic +bond_coeff 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +WARNING: Communication cutoff 7 is shorter than a bond length based estimate of 8. This may lead to errors. (src/comm.cpp:723) +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 194283.6024 91313.53086 1737.367544 25.51012833 1762.877672 12.75506417 +Loop time of 4.5844e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string pair-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style harmonic/cut +pair_coeff 1 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair harmonic/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.43 | 4.43 | 4.43 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 170540.4005 97560.47089 1525.045619 190.8165235 1715.862142 178.0614593 +Loop time of 4.6409e-05 on 1 procs for 5 steps with 4 atoms + + +variable eps index 0.02 +variable sig index 2.0 +variable name string wall-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lj126 xlo -5.0 ${eps} ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 2.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.1224609 645.1224609 0 + 1 178153.8707 72825.53278 1593.128544 0.2259591031 1593.354503 0 + 2 178262.3593 72869.88065 1594.098696 -0.02237405364 1594.076322 0 + 3 178259.9436 72868.89314 1594.077094 -0.003385746252 1594.073708 0 + 4 178259.4975 72868.71081 1594.073105 0 1594.073105 0 + 5 178259.4975 72868.71081 1594.073105 0 1594.073105 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 4.3816e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string table-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat LJ126 4.0 xhi 5.0 walltab.dat LJ126 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.2141852 645.2141852 0 + 1 178212.5398 72849.51549 1593.653189 0.2256644171 1593.878854 0 + 2 178320.9331 72893.82438 1594.622489 -0.02236253394 1594.600126 0 + 3 178318.518 72892.83712 1594.600891 -0.0033818408 1594.597509 0 + 4 178318.0722 72892.6549 1594.596905 0 1594.596905 0 + 5 178318.0722 72892.6549 1594.596905 0 1594.596905 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 4.2027e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string spline-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table spline 200 xlo -5.0 walltab.dat LJ126 4.0 xhi 5.0 walltab.dat LJ126 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.3361317 645.3361317 0 + 1 161871.9611 66169.83266 1447.528705 0.3353251002 1447.86403 0 + 2 162015.342 66228.44376 1448.810879 -0.02581160308 1448.785068 0 + 3 162012.784 66227.39811 1448.788005 -0.004635008226 1448.78337 0 + 4 162012.2554 66227.18201 1448.783278 0 1448.783278 0 + 5 162012.2554 66227.18201 1448.783278 0 1448.783278 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 7.5223e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string pair-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style lj/cut 4.0 +pair_coeff 1 1 ${eps} ${sig} +pair_coeff 1 1 0.02 ${sig} +pair_coeff 1 1 0.02 2.0 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair lj/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.43 | 4.43 | 4.43 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 178343.7047 0 645.1224609 645.1224609 322.5612305 + 1 178153.8707 72925.96146 1593.128544 0.2259591031 1593.354503 0.1129795516 + 2 178262.3593 72867.28485 1594.098696 -0.02237405364 1594.076322 -0.01118702682 + 3 178260.8147 72867.80305 1594.084884 -0.007499601847 1594.077384 -0.005806728722 + 4 176007.6835 72778.53677 1573.936415 2.772305717 1576.708721 2.772305717 + 5 1.132219912e+27 4.628275436e+26 1.012479748e+25 3.761972158e+12 1.012479748e+25 3.761972158e+12 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 8.0904e-05 on 1 procs for 5 steps with 4 atoms + + +variable d0 index 20.0 +variable al index 2.0 +variable r0 index 1.2 + +variable name string wall-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/morse xlo -5.0 ${d0} ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 1.2 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905654 -30.02905654 0 + 1 146.0893547 59.71823711 1.30639385 -31.40065042 -30.09425657 0 + 2 485.8091411 198.5884977 4.34431431 -34.55987817 -30.21556386 0 + 3 822.0828974 336.0500941 7.351418888 -37.63613582 -30.28471693 0 + 4 1018.806679 416.4666136 9.110607565 -39.39265114 -30.28204357 0 + 5 1050.331347 429.3532307 9.392514704 -39.63687095 -30.24435625 0 +Loop time of 7.721e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string table-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat MORSE 4.0 xhi 5.0 walltab.dat MORSE 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.0282104 -30.0282104 0 + 1 146.0967469 59.72125889 1.306459954 -31.40033773 -30.09387777 0 + 2 485.8417772 198.6018386 4.344606156 -34.55851819 -30.21391203 0 + 3 822.1558136 336.0799007 7.352070936 -37.63533573 -30.28326479 0 + 4 1018.904947 416.5067832 9.111486314 -39.39200056 -30.28051425 0 + 5 1050.436268 429.3961205 9.393452958 -39.63643565 -30.24298269 0 +Loop time of 5.4273e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string spline-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table spline 1000 xlo -5.0 walltab.dat MORSE 4.0 xhi 5.0 walltab.dat MORSE 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905657 -30.02905657 0 + 1 146.0893531 59.71823647 1.306393836 -31.40065068 -30.09425684 0 + 2 485.809133 198.5884944 4.344314238 -34.55987846 -30.21556422 0 + 3 822.0828818 336.0500877 7.351418748 -37.63613601 -30.28471726 0 + 4 1018.80666 416.4666056 9.110607389 -39.39265128 -30.28204389 0 + 5 1050.331328 429.353223 9.392514534 -39.63687099 -30.24435645 0 +Loop time of 3.4052e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string bond-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style morse +bond_coeff 1 ${d0} ${al} ${r0} +bond_coeff 1 20.0 ${al} ${r0} +bond_coeff 1 20.0 2.0 ${r0} +bond_coeff 1 20.0 2.0 1.2 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.429 | 4.429 | 4.429 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 9.675661328 9.675661328 4.837830664 + 1 146.0893547 2514.939772 1.30639385 8.304067455 9.610461305 4.152033728 + 2 485.8091411 2063.804037 4.34431431 5.144839701 9.489154012 2.572419851 + 3 822.0828974 1456.368913 7.351418888 2.06858205 9.420000938 1.034291025 + 4 1018.806679 823.4383177 9.110607565 0.3120667313 9.422674297 0.1560333657 + 5 1050.331347 253.0262957 9.392514704 0.06784692056 9.460361624 0.03392346028 +Loop time of 7.2553e-05 on 1 procs for 5 steps with 4 atoms + + +variable name string pair-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 1 by 1 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.000 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style morse 4.0 +pair_coeff 1 1 ${d0} ${al} ${r0} +pair_coeff 1 1 20.0 ${al} ${r0} +pair_coeff 1 1 20.0 2.0 ${r0} +pair_coeff 1 1 20.0 2.0 1.2 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair morse, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.43 | 4.43 | 4.43 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 -30.02905654 -30.02905654 -15.01452827 + 1 146.0893547 2514.939772 1.30639385 -31.40065042 -30.09425657 -15.70032521 + 2 485.8091411 2063.804037 4.34431431 -34.55987817 -30.21556386 -17.27993908 + 3 822.0828974 1456.368913 7.351418888 -37.63613582 -30.28471693 -18.81806791 + 4 1018.806679 823.4383177 9.110607565 -39.39265114 -30.28204357 -19.69632557 + 5 1050.331347 253.0262957 9.392514704 -39.63687095 -30.24435625 -19.81843547 +Loop time of 4.2481e-05 on 1 procs for 5 steps with 4 atoms + + +shell rm -f walltest.restart +Total wall time: 0:00:00 diff --git a/examples/wall/log.23Feb23.wall.table.g++.4 b/examples/wall/log.23Feb23.wall.table.g++.4 new file mode 100644 index 0000000000..8b0e9e0902 --- /dev/null +++ b/examples/wall/log.23Feb23.wall.table.g++.4 @@ -0,0 +1,1116 @@ +LAMMPS (8 Feb 2023) + using 1 OpenMP thread(s) per MPI task +units real +atom_style bond +boundary f p p +region box block -5.000000000000001 5.000000000000001 -5 5 -5 5 +create_box 1 box bond/types 1 extra/bond/per/atom 1 extra/special/per/atom 1 +Created orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + +pair_style zero 5.0 +pair_coeff * * +mass * 1.0 +bond_style zero +bond_coeff * 1.0 + +create_atoms 1 single -4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 4.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single -5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_atoms 1 single 5.0 0.0 0.0 +Created 1 atoms + using lattice units in orthogonal box = (-5 -5 -5) to (5 5 5) + create_atoms CPU = 0.000 seconds +create_bonds single/bond 1 3 1 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds +create_bonds single/bond 1 4 2 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.001 seconds + +group move id 1:2 +2 atoms in group move +write_restart walltest.restart +System init for write_restart ... +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard + +variable name string wall-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.001 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/harmonic xlo -5.0 100 0.0 4.0 xhi 5.0 100 1.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 0.000766029 on 4 procs for 5 steps with 4 atoms + + +variable name string table-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat HARMONIC 4.0 xhi 5.0 walltab.dat HARMONIC 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800.000356 1800.000356 0 + 1 16146.37291 6600.295604 144.3878119 1652.527723 1796.915535 0 + 2 59294.04011 24238.149 530.232812 1258.437853 1788.670665 0 + 3 115302.7492 47133.32419 1031.086781 746.8824148 1777.969196 0 + 4 165817.4572 67782.66799 1482.811029 285.5061521 1768.317181 0 + 5 194283.6024 79419.02582 1737.367544 25.51090543 1762.878449 0 +Loop time of 0.000395044 on 4 procs for 5 steps with 4 atoms + + +variable name string spline-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table spline 200 xlo -5.0 walltab.dat HARMONIC 4.0 xhi 5.0 walltab.dat HARMONIC 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 1800 1800 0 + 1 16146.37291 6600.295604 144.3878119 1652.527054 1796.914866 0 + 2 59294.04011 24238.149 530.232812 1258.437705 1788.670517 0 + 3 115302.7492 47133.32419 1031.086781 746.8819904 1777.968771 0 + 4 165817.4572 67782.66799 1482.811029 285.5057515 1768.31678 0 + 5 194283.6024 79419.02582 1737.367544 25.51012833 1762.877672 0 +Loop time of 0.00033613 on 4 procs for 5 steps with 4 atoms + + +variable name string bond-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style harmonic +bond_coeff 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +WARNING: Communication cutoff 7 is shorter than a bond length based estimate of 8. This may lead to errors. (src/comm.cpp:723) +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 194283.6024 91313.53086 1737.367544 25.51012833 1762.877672 12.75506417 +Loop time of 0.000380067 on 4 procs for 5 steps with 4 atoms + + +variable name string pair-harmonic +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style harmonic/cut +pair_coeff 1 1 100 4.0 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair harmonic/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.38 | 4.56 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 27427.366 0 1800 1800 900 + 1 16146.37291 36178.74173 144.3878119 1652.527054 1796.914866 826.263527 + 2 59294.04011 58444.6962 530.232812 1258.437705 1788.670517 629.2188524 + 3 115302.7492 83661.44348 1031.086781 746.8819904 1777.968771 373.4409952 + 4 165817.4572 98424.89283 1482.811029 285.5057515 1768.31678 142.7528758 + 5 170540.4005 97560.47089 1525.045619 190.8165235 1715.862142 178.0614593 +Loop time of 0.000337009 on 4 procs for 5 steps with 4 atoms + + +variable eps index 0.02 +variable sig index 2.0 +variable name string wall-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/lj126 xlo -5.0 ${eps} ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 ${sig} 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 ${eps} ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 ${sig} 4.0 +fix 1 move wall/lj126 xlo -5.0 0.02 2.0 4.0 xhi 5.0 0.02 2.0 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.1224609 645.1224609 0 + 1 178153.8707 72825.53278 1593.128544 0.2259591031 1593.354503 0 + 2 178262.3593 72869.88065 1594.098696 -0.02237405364 1594.076322 0 + 3 178259.9436 72868.89314 1594.077094 -0.003385746252 1594.073708 0 + 4 178259.4975 72868.71081 1594.073105 0 1594.073105 0 + 5 178259.4975 72868.71081 1594.073105 0 1594.073105 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.000404521 on 4 procs for 5 steps with 4 atoms + + +variable name string table-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat LJ126 4.0 xhi 5.0 walltab.dat LJ126 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.2141852 645.2141852 0 + 1 178212.5398 72849.51549 1593.653189 0.2256644171 1593.878854 0 + 2 178320.9331 72893.82438 1594.622489 -0.02236253394 1594.600126 0 + 3 178318.518 72892.83712 1594.600891 -0.0033818408 1594.597509 0 + 4 178318.0722 72892.6549 1594.596905 0 1594.596905 0 + 5 178318.0722 72892.6549 1594.596905 0 1594.596905 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.000334746 on 4 procs for 5 steps with 4 atoms + + +variable name string spline-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table spline 200 xlo -5.0 walltab.dat LJ126 4.0 xhi 5.0 walltab.dat LJ126 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +WARNING: 1 of 400 force values in table are inconsistent with -dE/dr. +WARNING: Should only be flagged at inflection points (src/fix_wall_table.cpp:244) +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 645.3361317 645.3361317 0 + 1 161871.9611 66169.83266 1447.528705 0.3353251002 1447.86403 0 + 2 162015.342 66228.44376 1448.810879 -0.02581160308 1448.785068 0 + 3 162012.784 66227.39811 1448.788005 -0.004635008226 1448.78337 0 + 4 162012.2554 66227.18201 1448.783278 0 1448.783278 0 + 5 162012.2554 66227.18201 1448.783278 0 1448.783278 0 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.000345529 on 4 procs for 5 steps with 4 atoms + + +variable name string pair-lj126 +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style lj/cut 4.0 +pair_coeff 1 1 ${eps} ${sig} +pair_coeff 1 1 0.02 ${sig} +pair_coeff 1 1 0.02 2.0 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair lj/cut, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.38 | 4.56 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 178343.7047 0 645.1224609 645.1224609 322.5612305 + 1 178153.8707 72925.96146 1593.128544 0.2259591031 1593.354503 0.1129795516 + 2 178262.3593 72867.28485 1594.098696 -0.02237405364 1594.076322 -0.01118702682 + 3 178260.8147 72867.80305 1594.084884 -0.007499601847 1594.077384 -0.005806728722 + 4 176007.6835 72778.53677 1573.936415 2.772305717 1576.708721 2.772305717 + 5 1.132219912e+27 4.628275436e+26 1.012479748e+25 3.761972158e+12 1.012479748e+25 3.761972158e+12 +WARNING: Bond/angle/dihedral extent > half of periodic box length (src/domain.cpp:936) +Loop time of 0.000315196 on 4 procs for 5 steps with 4 atoms + + +variable d0 index 20.0 +variable al index 2.0 +variable r0 index 1.2 + +variable name string wall-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/morse xlo -5.0 ${d0} ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 ${al} ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 ${r0} 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 ${d0} ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 ${al} ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 ${r0} 4.0 +fix 1 move wall/morse xlo -5.0 20.0 2.0 1.2 4.0 xhi 5.0 20.0 2.0 1.2 4.0 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905654 -30.02905654 0 + 1 146.0893547 59.71823711 1.30639385 -31.40065042 -30.09425657 0 + 2 485.8091411 198.5884977 4.34431431 -34.55987817 -30.21556386 0 + 3 822.0828974 336.0500941 7.351418888 -37.63613582 -30.28471693 0 + 4 1018.806679 416.4666136 9.110607565 -39.39265114 -30.28204357 0 + 5 1050.331347 429.3532307 9.392514704 -39.63687095 -30.24435625 0 +Loop time of 0.000711295 on 4 procs for 5 steps with 4 atoms + + +variable name string table-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table linear 1000 xlo -5.0 walltab.dat MORSE 4.0 xhi 5.0 walltab.dat MORSE 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.0282104 -30.0282104 0 + 1 146.0967469 59.72125889 1.306459954 -31.40033773 -30.09387777 0 + 2 485.8417772 198.6018386 4.344606156 -34.55851819 -30.21391203 0 + 3 822.1558136 336.0799007 7.352070936 -37.63533573 -30.28326479 0 + 4 1018.904947 416.5067832 9.111486314 -39.39200056 -30.28051425 0 + 5 1050.436268 429.3961205 9.393452958 -39.63643565 -30.24298269 0 +Loop time of 0.000302153 on 4 procs for 5 steps with 4 atoms + + +variable name string spline-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +fix 1 move wall/table spline 1000 xlo -5.0 walltab.dat MORSE 4.0 xhi 5.0 walltab.dat MORSE 4.0 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +Reading fix wall/table table potential file walltab.dat with DATE: 2023-02-23 +fix_modify 1 energy yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 0 0 -30.02905657 -30.02905657 0 + 1 146.0893531 59.71823647 1.306393836 -31.40065068 -30.09425684 0 + 2 485.809133 198.5884944 4.344314238 -34.55987846 -30.21556422 0 + 3 822.0828818 336.0500877 7.351418748 -37.63613601 -30.28471726 0 + 4 1018.80666 416.4666056 9.110607389 -39.39265128 -30.28204389 0 + 5 1050.331328 429.353223 9.392514534 -39.63687099 -30.24435645 0 +Loop time of 0.000295181 on 4 procs for 5 steps with 4 atoms + + +variable name string bond-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +bond_style morse +bond_coeff 1 ${d0} ${al} ${r0} +bond_coeff 1 20.0 ${al} ${r0} +bond_coeff 1 20.0 2.0 ${r0} +bond_coeff 1 20.0 2.0 1.2 +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 7 + ghost atom cutoff = 7 + binsize = 3.5, bins = 3 3 3 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair zero, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.379 | 4.559 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 9.675661328 9.675661328 4.837830664 + 1 146.0893547 2514.939772 1.30639385 8.304067455 9.610461305 4.152033728 + 2 485.8091411 2063.804037 4.34431431 5.144839701 9.489154012 2.572419851 + 3 822.0828974 1456.368913 7.351418888 2.06858205 9.420000938 1.034291025 + 4 1018.806679 823.4383177 9.110607565 0.3120667313 9.422674297 0.1560333657 + 5 1050.331347 253.0262957 9.392514704 0.06784692056 9.460361624 0.03392346028 +Loop time of 0.000710295 on 4 procs for 5 steps with 4 atoms + + +variable name string pair-morse +include wall.inc + +clear + using 1 OpenMP thread(s) per MPI task +read_restart walltest.restart +Reading restart file ... + restart file = 8 Feb 2023, LAMMPS = 8 Feb 2023 + restoring atom style bond from restart + orthogonal box = (-5 -5 -5) to (5 5 5) + 1 by 2 by 2 MPI processor grid + restoring pair style zero from restart + restoring bond style zero from restart + 4 atoms + 2 bonds +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 0 0 0 + special bond factors coul: 0 0 0 + 1 = max # of 1-2 neighbors + 0 = max # of 1-3 neighbors + 0 = max # of 1-4 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + read_restart CPU = 0.001 seconds +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 +Finding 1-2 1-3 1-4 neighbors ... + special bond factors lj: 1 1 1 + special bond factors coul: 1 1 1 + 1 = max # of 1-2 neighbors + 3 = max # of special neighbors + special bonds CPU = 0.000 seconds + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g + +pair_style morse 4.0 +pair_coeff 1 1 ${d0} ${al} ${r0} +pair_coeff 1 1 20.0 ${al} ${r0} +pair_coeff 1 1 20.0 2.0 ${r0} +pair_coeff 1 1 20.0 2.0 1.2 +pair_modify shift yes +run 5 post no +Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule +Neighbor list info ... + update: every = 1 steps, delay = 0 steps, check = yes + max neighbors/atom: 2000, page size: 100000 + master list distance cutoff = 6 + ghost atom cutoff = 6 + binsize = 3, bins = 4 4 4 + 1 neighbor lists, perpetual/occasional/extra = 1 0 0 + (1) pair morse, perpetual + attributes: half, newton on + pair build: half/bin/newton + stencil: half/bin/3d + bin: standard +Per MPI rank memory allocation (min/avg/max) = 4.32 | 4.38 | 4.56 Mbytes + Step Temp Press KinEng PotEng TotEng c_pe + 0 0 2683.187147 0 -30.02905654 -30.02905654 -15.01452827 + 1 146.0893547 2514.939772 1.30639385 -31.40065042 -30.09425657 -15.70032521 + 2 485.8091411 2063.804037 4.34431431 -34.55987817 -30.21556386 -17.27993908 + 3 822.0828974 1456.368913 7.351418888 -37.63613582 -30.28471693 -18.81806791 + 4 1018.806679 823.4383177 9.110607565 -39.39265114 -30.28204357 -19.69632557 + 5 1050.331347 253.0262957 9.392514704 -39.63687095 -30.24435625 -19.81843547 +Loop time of 0.000297435 on 4 procs for 5 steps with 4 atoms + + +shell rm -f walltest.restart +Total wall time: 0:00:00 diff --git a/examples/wall/wall.inc b/examples/wall/wall.inc new file mode 100644 index 0000000000..1b36f2c38e --- /dev/null +++ b/examples/wall/wall.inc @@ -0,0 +1,16 @@ + +clear +read_restart walltest.restart +# log ${name}.log + +compute ea move pe/atom +compute pe move reduce sum c_ea +special_bonds lj/coul 1.0 1.0 1.0 + +thermo_style custom step temp press ke pe etotal c_pe +thermo 1 +thermo_modify format float %14.10g + +fix 0 move nve +# dump 1 all custom 1 ${name}.dump id x fx +# dump_modify 1 format float %20.15g diff --git a/examples/wall/walltab.dat b/examples/wall/walltab.dat new file mode 100644 index 0000000000..53b2b42700 --- /dev/null +++ b/examples/wall/walltab.dat @@ -0,0 +1,1212 @@ +# DATE: 2023-02-23 UNITS: real +HARMONIC +N 400 FP 199.99999998802 200.000000002102 + + 1 0.01 1592.01 798 + 2 0.02 1584.04 796 + 3 0.03 1576.09 794 + 4 0.04 1568.16 792 + 5 0.05 1560.25 790 + 6 0.06 1552.36 788 + 7 0.07 1544.49 786 + 8 0.08 1536.64 784 + 9 0.09 1528.81 782 + 10 0.1 1521 780 + 11 0.11 1513.21 778 + 12 0.12 1505.44 776 + 13 0.13 1497.69 774 + 14 0.14 1489.96 772 + 15 0.15 1482.25 770 + 16 0.16 1474.56 768 + 17 0.17 1466.89 766 + 18 0.18 1459.24 764 + 19 0.19 1451.61 762 + 20 0.2 1444 760 + 21 0.21 1436.41 758 + 22 0.22 1428.84 756 + 23 0.23 1421.29 754 + 24 0.24 1413.76 752 + 25 0.25 1406.25 750 + 26 0.26 1398.76 748 + 27 0.27 1391.29 746 + 28 0.28 1383.84 744 + 29 0.29 1376.41 742 + 30 0.3 1369 740 + 31 0.31 1361.61 738 + 32 0.32 1354.24 736 + 33 0.33 1346.89 734 + 34 0.34 1339.56 732 + 35 0.35 1332.25 730 + 36 0.36 1324.96 728 + 37 0.37 1317.69 726 + 38 0.38 1310.44 724 + 39 0.39 1303.21 722 + 40 0.4 1296 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-0.306717065428139 + 399 3.99 -0.150617975739817 -0.30066666145589 + 400 4 -0.147641064738004 -0.29473516163338 diff --git a/src/.gitignore b/src/.gitignore index 0d73a7911d..df02ab3397 100644 --- a/src/.gitignore +++ b/src/.gitignore @@ -62,6 +62,8 @@ /angle_lepton.h /dihedral_lepton.cpp /dihedral_lepton.h +/fix_wall_lepton.cpp +/fix_wall_lepton.h /lepton_utils.cpp /lepton_utils.h diff --git a/src/COLLOID/fix_wall_colloid.cpp b/src/COLLOID/fix_wall_colloid.cpp index d21856bc60..3160fadb53 100644 --- a/src/COLLOID/fix_wall_colloid.cpp +++ b/src/COLLOID/fix_wall_colloid.cpp @@ -24,7 +24,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/EXTRA-FIX/fix_wall_ees.cpp b/src/EXTRA-FIX/fix_wall_ees.cpp index bbddd919af..d9bc2a8450 100644 --- a/src/EXTRA-FIX/fix_wall_ees.cpp +++ b/src/EXTRA-FIX/fix_wall_ees.cpp @@ -26,7 +26,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/EXTRA-FIX/fix_wall_reflect_stochastic.cpp b/src/EXTRA-FIX/fix_wall_reflect_stochastic.cpp index 7899c88473..c0b44530e8 100644 --- a/src/EXTRA-FIX/fix_wall_reflect_stochastic.cpp +++ b/src/EXTRA-FIX/fix_wall_reflect_stochastic.cpp @@ -31,7 +31,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; enum{NONE,DIFFUSIVE,MAXWELL,CCL}; diff --git a/src/GRANULAR/fix_wall_gran_region.cpp b/src/GRANULAR/fix_wall_gran_region.cpp index f1bd55a7bc..68afce2b0b 100644 --- a/src/GRANULAR/fix_wall_gran_region.cpp +++ b/src/GRANULAR/fix_wall_gran_region.cpp @@ -29,7 +29,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/KOKKOS/fix_wall_lj93_kokkos.cpp b/src/KOKKOS/fix_wall_lj93_kokkos.cpp index 03bf6cf8ea..dff47f1c30 100644 --- a/src/KOKKOS/fix_wall_lj93_kokkos.cpp +++ b/src/KOKKOS/fix_wall_lj93_kokkos.cpp @@ -19,7 +19,6 @@ #include "atom_masks.h" using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/KOKKOS/fix_wall_reflect_kokkos.cpp b/src/KOKKOS/fix_wall_reflect_kokkos.cpp index 32b9ee61b1..a8a01c1926 100644 --- a/src/KOKKOS/fix_wall_reflect_kokkos.cpp +++ b/src/KOKKOS/fix_wall_reflect_kokkos.cpp @@ -24,7 +24,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; enum{XLO=0,XHI=1,YLO=2,YHI=3,ZLO=4,ZHI=5}; enum{NONE=0,EDGE,CONSTANT,VARIABLE}; diff --git a/src/LEPTON/fix_wall_lepton.cpp b/src/LEPTON/fix_wall_lepton.cpp new file mode 100644 index 0000000000..a81d3c4edb --- /dev/null +++ b/src/LEPTON/fix_wall_lepton.cpp @@ -0,0 +1,138 @@ +/* ---------------------------------------------------------------------- + LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator + https://www.lammps.org/, Sandia National Laboratories + LAMMPS development team: developers@lammps.org + + Copyright (2003) Sandia Corporation. Under the terms of Contract + DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains + certain rights in this software. This software is distributed under + the GNU General Public License. + + See the README file in the top-level LAMMPS directory. +------------------------------------------------------------------------- */ + +#include "fix_wall_lepton.h" +#include "atom.h" +#include "error.h" + +#include "Lepton.h" +#include "lepton_utils.h" + +using namespace LAMMPS_NS; + +/* ---------------------------------------------------------------------- */ + +FixWallLepton::FixWallLepton(LAMMPS *lmp, int narg, char **arg) : FixWall(lmp, narg, arg) +{ + dynamic_group_allow = 1; +} + +/* ---------------------------------------------------------------------- */ + +void FixWallLepton::post_constructor() +{ + // check validity of lepton expression + + for (int m = 0; m < nwall; ++m) { + // remove whitespace and quotes from expression string and then + // check if the expression can be parsed and evaluated without error + std::string exp_one = LeptonUtils::condense(lstr[m]); + try { + auto parsed = Lepton::Parser::parse(LeptonUtils::substitute(exp_one, lmp)); + auto wallpot = parsed.createCompiledExpression(); + auto wallforce = parsed.differentiate("r").createCompiledExpression(); + wallpot.getVariableReference("r") = 0.0; + wallforce.getVariableReference("r") = 0.0; + wallpot.evaluate(); + wallforce.evaluate(); + } catch (std::exception &e) { + error->all(FLERR, e.what()); + } + } +} + +/* ---------------------------------------------------------------------- + compute the potential energy offset so it can be shifted to zero at the cutoff +------------------------------------------------------------------------- */ + +void FixWallLepton::precompute(int m) +{ + std::string exp_one = LeptonUtils::condense(lstr[m]); + auto parsed = Lepton::Parser::parse(LeptonUtils::substitute(exp_one, lmp)); + auto wallpot = parsed.createCompiledExpression(); + + try { + wallpot.getVariableReference("rc") = cutoff[m]; + } catch (std::exception &) { + ; // do nothing + } + + wallpot.getVariableReference("r") = cutoff[m]; + offset[m] = wallpot.evaluate(); +} + +/* ---------------------------------------------------------------------- + interaction of all particles in group with a wall + m = index of wall coeffs + which = xlo,xhi,ylo,yhi,zlo,zhi + error if any particle is on or behind wall +------------------------------------------------------------------------- */ + +void FixWallLepton::wall_particle(int m, int which, double coord) +{ + std::string exp_one = LeptonUtils::condense(lstr[m]); + auto parsed = Lepton::Parser::parse(LeptonUtils::substitute(exp_one, lmp)); + auto wallpot = parsed.createCompiledExpression(); + auto wallforce = parsed.differentiate("r").createCompiledExpression(); + + // set cutoff value, if used + try { + wallpot.getVariableReference("rc") = cutoff[m]; + wallforce.getVariableReference("rc") = cutoff[m]; + } catch (std::exception &) { + ; // do nothing + } + + double delta, fwall, vn; + + double **x = atom->x; + double **f = atom->f; + int *mask = atom->mask; + int nlocal = atom->nlocal; + + int dim = which / 2; + int side = which % 2; + if (side == 0) side = -1; + + int onflag = 0; + + for (int i = 0; i < nlocal; i++) { + if (mask[i] & groupbit) { + if (side < 0) + delta = x[i][dim] - coord; + else + delta = coord - x[i][dim]; + if (delta >= cutoff[m]) continue; + if (delta <= 0.0) { + onflag = 1; + continue; + } + wallpot.getVariableReference("r") = delta; + wallforce.getVariableReference("r") = delta; + + fwall = side * wallforce.evaluate(); + f[i][dim] += fwall; + ewall[0] += wallpot.evaluate() - offset[m]; + ewall[m + 1] += fwall; + + if (evflag) { + if (side < 0) + vn = -fwall * delta; + else + vn = fwall * delta; + v_tally(dim, i, vn); + } + } + } + if (onflag) error->one(FLERR, "Particle on or inside fix {} surface", style); +} diff --git a/src/LEPTON/fix_wall_lepton.h b/src/LEPTON/fix_wall_lepton.h new file mode 100644 index 0000000000..4c1df801c7 --- /dev/null +++ b/src/LEPTON/fix_wall_lepton.h @@ -0,0 +1,41 @@ +/* -*- c++ -*- ---------------------------------------------------------- + LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator + https://www.lammps.org/, Sandia National Laboratories + LAMMPS development team: developers@lammps.org + + Copyright (2003) Sandia Corporation. Under the terms of Contract + DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains + certain rights in this software. This software is distributed under + the GNU General Public License. + + See the README file in the top-level LAMMPS directory. +------------------------------------------------------------------------- */ + +#ifdef FIX_CLASS +// clang-format off +FixStyle(wall/lepton,FixWallLepton); +// clang-format on +#else + +#ifndef LMP_FIX_WALL_LEPTON_H +#define LMP_FIX_WALL_LEPTON_H + +#include "fix_wall.h" + +namespace LAMMPS_NS { + +class FixWallLepton : public FixWall { + public: + FixWallLepton(class LAMMPS *, int, char **); + void post_constructor() override; + void precompute(int) override; + void wall_particle(int, int, double) override; + + protected: + double offset[6]; +}; + +} // namespace LAMMPS_NS + +#endif +#endif diff --git a/src/SHOCK/fix_wall_piston.cpp b/src/SHOCK/fix_wall_piston.cpp index 82cec907f4..cb20e2d683 100644 --- a/src/SHOCK/fix_wall_piston.cpp +++ b/src/SHOCK/fix_wall_piston.cpp @@ -13,17 +13,19 @@ ------------------------------------------------------------------------- */ #include "fix_wall_piston.h" + +#include "atom.h" +#include "comm.h" +#include "domain.h" +#include "error.h" +#include "force.h" +#include "lattice.h" +#include "math_const.h" +#include "random_mars.h" +#include "update.h" + #include #include -#include "atom.h" -#include "domain.h" -#include "lattice.h" -#include "update.h" -#include "error.h" -#include "random_mars.h" -#include "force.h" -#include "comm.h" -#include "math_const.h" using namespace LAMMPS_NS; using namespace FixConst; diff --git a/src/SRD/fix_wall_srd.cpp b/src/SRD/fix_wall_srd.cpp index ccce252e5d..d9e55a49f2 100644 --- a/src/SRD/fix_wall_srd.cpp +++ b/src/SRD/fix_wall_srd.cpp @@ -27,7 +27,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; enum { XLO, XHI, YLO, YHI, ZLO, ZHI }; enum { NONE, EDGE, CONSTANT, VARIABLE }; diff --git a/src/fix_wall.cpp b/src/fix_wall.cpp index d624ee9ff7..4c4406a34c 100644 --- a/src/fix_wall.cpp +++ b/src/fix_wall.cpp @@ -1,4 +1,3 @@ -// clang-format off /* ---------------------------------------------------------------------- LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator https://www.lammps.org/, Sandia National Laboratories @@ -28,14 +27,14 @@ using namespace LAMMPS_NS; using namespace FixConst; -enum{XLO=0,XHI=1,YLO=2,YHI=3,ZLO=4,ZHI=5}; -enum{NONE=0,EDGE,CONSTANT,VARIABLE}; +enum { XLO = 0, XHI = 1, YLO = 2, YHI = 3, ZLO = 4, ZHI = 5 }; +enum { NONE = 0, EDGE, CONSTANT, VARIABLE }; + +static const char *wallpos[] = {"xlo", "xhi", "ylo", "yhi", "zlo", "zhi"}; /* ---------------------------------------------------------------------- */ -FixWall::FixWall(LAMMPS *lmp, int narg, char **arg) : - Fix(lmp, narg, arg), - nwall(0) +FixWall::FixWall(LAMMPS *lmp, int narg, char **arg) : Fix(lmp, narg, arg), nwall(0) { scalar_flag = 1; vector_flag = 1; @@ -53,111 +52,145 @@ FixWall::FixWall(LAMMPS *lmp, int narg, char **arg) : fldflag = 0; int pbcflag = 0; - for (int i = 0; i < 6; i++) xstr[i] = estr[i] = sstr[i] = nullptr; + for (int i = 0; i < 6; i++) xstr[i] = estr[i] = sstr[i] = lstr[i] = fstr[i] = kstr[i] = nullptr; int iarg = 3; + if (utils::strmatch(style, "^wall/table")) iarg = 5; + while (iarg < narg) { - if ((strcmp(arg[iarg],"xlo") == 0) || (strcmp(arg[iarg],"xhi") == 0) || - (strcmp(arg[iarg],"ylo") == 0) || (strcmp(arg[iarg],"yhi") == 0) || - (strcmp(arg[iarg],"zlo") == 0) || (strcmp(arg[iarg],"zhi") == 0)) { - if (iarg+5 > narg) error->all(FLERR,"Illegal fix wall command"); + int wantargs = 5; + if (utils::strmatch(style, "^wall/lepton")) wantargs = 4; + if (utils::strmatch(style, "^wall/morse")) wantargs = 6; + + if ((strcmp(arg[iarg], "xlo") == 0) || (strcmp(arg[iarg], "xhi") == 0) || + (strcmp(arg[iarg], "ylo") == 0) || (strcmp(arg[iarg], "yhi") == 0) || + (strcmp(arg[iarg], "zlo") == 0) || (strcmp(arg[iarg], "zhi") == 0)) { + if (iarg + wantargs > narg) error->all(FLERR, "Missing argument for fix {} command", style); int newwall; - if (strcmp(arg[iarg],"xlo") == 0) newwall = XLO; - else if (strcmp(arg[iarg],"xhi") == 0) newwall = XHI; - else if (strcmp(arg[iarg],"ylo") == 0) newwall = YLO; - else if (strcmp(arg[iarg],"yhi") == 0) newwall = YHI; - else if (strcmp(arg[iarg],"zlo") == 0) newwall = ZLO; - else if (strcmp(arg[iarg],"zhi") == 0) newwall = ZHI; - - for (int m = 0; (m < nwall) && (m < 6); m++) + if (strcmp(arg[iarg], "xlo") == 0) { + newwall = XLO; + } else if (strcmp(arg[iarg], "xhi") == 0) { + newwall = XHI; + } else if (strcmp(arg[iarg], "ylo") == 0) { + newwall = YLO; + } else if (strcmp(arg[iarg], "yhi") == 0) { + newwall = YHI; + } else if (strcmp(arg[iarg], "zlo") == 0) { + newwall = ZLO; + } else if (strcmp(arg[iarg], "zhi") == 0) { + newwall = ZHI; + } + for (int m = 0; (m < nwall) && (m < 6); m++) { if (newwall == wallwhich[m]) - error->all(FLERR,"Wall defined twice in fix wall command"); - + error->all(FLERR, "{} wall defined twice in fix {} command", wallpos[newwall], style); + } wallwhich[nwall] = newwall; - if (strcmp(arg[iarg+1],"EDGE") == 0) { + + if (strcmp(arg[iarg + 1], "EDGE") == 0) { xstyle[nwall] = EDGE; int dim = wallwhich[nwall] / 2; int side = wallwhich[nwall] % 2; - if (side == 0) coord0[nwall] = domain->boxlo[dim]; - else coord0[nwall] = domain->boxhi[dim]; - } else if (utils::strmatch(arg[iarg+1],"^v_")) { + if (side == 0) { + coord0[nwall] = domain->boxlo[dim]; + } else { + coord0[nwall] = domain->boxhi[dim]; + } + } else if (utils::strmatch(arg[iarg + 1], "^v_")) { xstyle[nwall] = VARIABLE; - xstr[nwall] = utils::strdup(arg[iarg+1]+2); + xstr[nwall] = utils::strdup(arg[iarg + 1] + 2); } else { xstyle[nwall] = CONSTANT; - coord0[nwall] = utils::numeric(FLERR,arg[iarg+1],false,lmp); + coord0[nwall] = utils::numeric(FLERR, arg[iarg + 1], false, lmp); } - if (utils::strmatch(arg[iarg+2],"^v_")) { - estr[nwall] = utils::strdup(arg[iarg+2]+2); - estyle[nwall] = VARIABLE; + if (utils::strmatch(style, "^wall/lepton")) { + estyle[nwall] = sstyle[nwall] = CONSTANT; + lstr[nwall] = utils::strdup(arg[iarg + 2]); + cutoff[nwall] = utils::numeric(FLERR, arg[iarg + 3], false, lmp); + } else if (utils::strmatch(style, "^wall/table")) { + estyle[nwall] = sstyle[nwall] = CONSTANT; + fstr[nwall] = utils::strdup(arg[iarg + 2]); + kstr[nwall] = utils::strdup(arg[iarg + 3]); + cutoff[nwall] = utils::numeric(FLERR, arg[iarg + 4], false, lmp); } else { - epsilon[nwall] = utils::numeric(FLERR,arg[iarg+2],false,lmp); - estyle[nwall] = CONSTANT; - } + if (iarg + 5 > narg) error->all(FLERR, "Missing argument for fix {} command", style); - if (utils::strmatch(style,"^wall/morse")) { - if (utils::strmatch(arg[iarg+3],"^v_")) { - astr[nwall] = utils::strdup(arg[iarg+3]+2); - astyle[nwall] = VARIABLE; + if (utils::strmatch(arg[iarg + 2], "^v_")) { + estr[nwall] = utils::strdup(arg[iarg + 2] + 2); + estyle[nwall] = VARIABLE; } else { - alpha[nwall] = utils::numeric(FLERR,arg[iarg+3],false,lmp); - astyle[nwall] = CONSTANT; + epsilon[nwall] = utils::numeric(FLERR, arg[iarg + 2], false, lmp); + estyle[nwall] = CONSTANT; } - ++iarg; - } - if (utils::strmatch(arg[iarg+3],"^v_")) { - sstr[nwall] = utils::strdup(arg[iarg+3]+2); - sstyle[nwall] = VARIABLE; - } else { - sigma[nwall] = utils::numeric(FLERR,arg[iarg+3],false,lmp); - sstyle[nwall] = CONSTANT; - } + if (utils::strmatch(style, "^wall/morse")) { + if (utils::strmatch(arg[iarg + 3], "^v_")) { + astr[nwall] = utils::strdup(arg[iarg + 3] + 2); + astyle[nwall] = VARIABLE; + } else { + alpha[nwall] = utils::numeric(FLERR, arg[iarg + 3], false, lmp); + astyle[nwall] = CONSTANT; + } + // adjust so we can share the regular code path + ++iarg; + --wantargs; + } - cutoff[nwall] = utils::numeric(FLERR,arg[iarg+4],false,lmp); + if (utils::strmatch(arg[iarg + 3], "^v_")) { + sstr[nwall] = utils::strdup(arg[iarg + 3] + 2); + sstyle[nwall] = VARIABLE; + } else { + sigma[nwall] = utils::numeric(FLERR, arg[iarg + 3], false, lmp); + sstyle[nwall] = CONSTANT; + } + cutoff[nwall] = utils::numeric(FLERR, arg[iarg + 4], false, lmp); + } nwall++; - iarg += 5; - - } else if (strcmp(arg[iarg],"units") == 0) { - if (iarg+2 > narg) error->all(FLERR,"Illegal fix wall command"); - if (strcmp(arg[iarg+1],"box") == 0) scaleflag = 0; - else if (strcmp(arg[iarg+1],"lattice") == 0) scaleflag = 1; - else error->all(FLERR,"Illegal fix wall command"); + iarg += wantargs; + } else if (strcmp(arg[iarg], "units") == 0) { + if (iarg + 2 > narg) error->all(FLERR, "Illegal fix {} command", style); + if (strcmp(arg[iarg + 1], "box") == 0) + scaleflag = 0; + else if (strcmp(arg[iarg + 1], "lattice") == 0) + scaleflag = 1; + else + error->all(FLERR, "Illegal fix {} command", style); iarg += 2; - } else if (strcmp(arg[iarg],"fld") == 0) { - if (iarg+2 > narg) error->all(FLERR,"Illegal fix wall command"); - fldflag = utils::logical(FLERR,arg[iarg+1],false,lmp); + } else if (strcmp(arg[iarg], "fld") == 0) { + if (iarg + 2 > narg) error->all(FLERR, "Illegal fix {} command", style); + fldflag = utils::logical(FLERR, arg[iarg + 1], false, lmp); iarg += 2; - } else if (strcmp(arg[iarg],"pbc") == 0) { - if (iarg+2 > narg) error->all(FLERR,"Illegal fix wall command"); - pbcflag = utils::logical(FLERR,arg[iarg+1],false,lmp); + } else if (strcmp(arg[iarg], "pbc") == 0) { + if (iarg + 2 > narg) error->all(FLERR, "Illegal fix {} command", style); + pbcflag = utils::logical(FLERR, arg[iarg + 1], false, lmp); iarg += 2; - } else error->all(FLERR,"Illegal fix wall command"); + } else + error->all(FLERR, "Illegal fix {} command", style); } size_vector = nwall; // error checks - if (nwall == 0) error->all(FLERR,"Illegal fix wall command"); - for (int m = 0; m < nwall; m++) + if (nwall == 0) error->all(FLERR, "Illegal fix {} command: no walls defined", style); + for (int m = 0; m < nwall; m++) { if (cutoff[m] <= 0.0) - error->all(FLERR,"Fix wall cutoff <= 0.0"); + error->all(FLERR, "Fix {} cutoff <= 0.0 for {} wall", style, wallpos[wallwhich[m]]); + } for (int m = 0; m < nwall; m++) if ((wallwhich[m] == ZLO || wallwhich[m] == ZHI) && domain->dimension == 2) - error->all(FLERR,"Cannot use fix wall zlo/zhi for a 2d simulation"); + error->all(FLERR, "Cannot use fix {} zlo/zhi for a 2d simulation", style); if (!pbcflag) { for (int m = 0; m < nwall; m++) { if ((wallwhich[m] == XLO || wallwhich[m] == XHI) && domain->xperiodic) - error->all(FLERR,"Cannot use fix wall in periodic dimension"); + error->all(FLERR, "Cannot use {} wall in periodic x dimension", wallpos[wallwhich[m]]); if ((wallwhich[m] == YLO || wallwhich[m] == YHI) && domain->yperiodic) - error->all(FLERR,"Cannot use fix wall in periodic dimension"); + error->all(FLERR, "Cannot use {} wall in periodic y dimension", wallpos[wallwhich[m]]); if ((wallwhich[m] == ZLO || wallwhich[m] == ZHI) && domain->zperiodic) - error->all(FLERR,"Cannot use fix wall in periodic dimension"); + error->all(FLERR, "Cannot use {} wall in periodic z dimension", wallpos[wallwhich[m]]); } } @@ -172,14 +205,17 @@ FixWall::FixWall(LAMMPS *lmp, int narg, char **arg) : xscale = domain->lattice->xlattice; yscale = domain->lattice->ylattice; zscale = domain->lattice->zlattice; - } - else xscale = yscale = zscale = 1.0; + } else + xscale = yscale = zscale = 1.0; for (int m = 0; m < nwall; m++) { if (xstyle[m] != CONSTANT) continue; - if (wallwhich[m] < YLO) coord0[m] *= xscale; - else if (wallwhich[m] < ZLO) coord0[m] *= yscale; - else coord0[m] *= zscale; + if (wallwhich[m] < YLO) + coord0[m] *= xscale; + else if (wallwhich[m] < ZLO) + coord0[m] *= yscale; + else + coord0[m] *= zscale; } } @@ -191,8 +227,10 @@ FixWall::FixWall(LAMMPS *lmp, int narg, char **arg) : for (int m = 0; m < nwall; m++) { if (xstyle[m] == VARIABLE) xflag = 1; if (xflag || estyle[m] == VARIABLE || sstyle[m] == VARIABLE) varflag = 1; - if (estyle[m] == VARIABLE || sstyle[m] == VARIABLE) wstyle[m] = VARIABLE; - else wstyle[m] = CONSTANT; + if (estyle[m] == VARIABLE || sstyle[m] == VARIABLE) + wstyle[m] = VARIABLE; + else + wstyle[m] = CONSTANT; } eflag = 0; @@ -206,9 +244,12 @@ FixWall::~FixWall() if (copymode) return; for (int m = 0; m < nwall; m++) { - delete [] xstr[m]; - delete [] estr[m]; - delete [] sstr[m]; + delete[] xstr[m]; + delete[] estr[m]; + delete[] sstr[m]; + delete[] lstr[m]; + delete[] fstr[m]; + delete[] kstr[m]; } } @@ -220,8 +261,10 @@ int FixWall::setmask() // FLD implicit needs to invoke wall forces before pair style - if (fldflag) mask |= PRE_FORCE; - else mask |= POST_FORCE; + if (fldflag) + mask |= PRE_FORCE; + else + mask |= POST_FORCE; mask |= POST_FORCE_RESPA; mask |= MIN_POST_FORCE; @@ -235,24 +278,21 @@ void FixWall::init() for (int m = 0; m < nwall; m++) { if (xstyle[m] == VARIABLE) { xindex[m] = input->variable->find(xstr[m]); - if (xindex[m] < 0) - error->all(FLERR,"Variable name for fix wall does not exist"); + if (xindex[m] < 0) error->all(FLERR, "Variable name for fix wall does not exist"); if (!input->variable->equalstyle(xindex[m])) - error->all(FLERR,"Variable for fix wall is invalid style"); + error->all(FLERR, "Variable for fix wall is invalid style"); } if (estyle[m] == VARIABLE) { eindex[m] = input->variable->find(estr[m]); - if (eindex[m] < 0) - error->all(FLERR,"Variable name for fix wall does not exist"); + if (eindex[m] < 0) error->all(FLERR, "Variable name for fix wall does not exist"); if (!input->variable->equalstyle(eindex[m])) - error->all(FLERR,"Variable for fix wall is invalid style"); + error->all(FLERR, "Variable for fix wall is invalid style"); } if (sstyle[m] == VARIABLE) { sindex[m] = input->variable->find(sstr[m]); - if (sindex[m] < 0) - error->all(FLERR,"Variable name for fix wall does not exist"); + if (sindex[m] < 0) error->all(FLERR, "Variable name for fix wall does not exist"); if (!input->variable->equalstyle(sindex[m])) - error->all(FLERR,"Variable for fix wall is invalid style"); + error->all(FLERR, "Variable for fix wall is invalid style"); } } @@ -260,9 +300,9 @@ void FixWall::init() for (int m = 0; m < nwall; m++) precompute(m); - if (utils::strmatch(update->integrate_style,"^respa")) { - ilevel_respa = (dynamic_cast(update->integrate))->nlevels-1; - if (respa_level >= 0) ilevel_respa = MIN(respa_level,ilevel_respa); + if (utils::strmatch(update->integrate_style, "^respa")) { + ilevel_respa = (dynamic_cast(update->integrate))->nlevels - 1; + if (respa_level >= 0) ilevel_respa = MIN(respa_level, ilevel_respa); } } @@ -270,11 +310,11 @@ void FixWall::init() void FixWall::setup(int vflag) { - if (utils::strmatch(update->integrate_style,"^verlet")) { + if (utils::strmatch(update->integrate_style, "^verlet")) { if (!fldflag) post_force(vflag); } else { (dynamic_cast(update->integrate))->copy_flevel_f(ilevel_respa); - post_force_respa(vflag,ilevel_respa,0); + post_force_respa(vflag, ilevel_respa, 0); (dynamic_cast(update->integrate))->copy_f_flevel(ilevel_respa); } } @@ -319,25 +359,27 @@ void FixWall::post_force(int vflag) for (int m = 0; m < nwall; m++) { if (xstyle[m] == VARIABLE) { coord = input->variable->compute_equal(xindex[m]); - if (wallwhich[m] < YLO) coord *= xscale; - else if (wallwhich[m] < ZLO) coord *= yscale; - else coord *= zscale; - } else coord = coord0[m]; + if (wallwhich[m] < YLO) + coord *= xscale; + else if (wallwhich[m] < ZLO) + coord *= yscale; + else + coord *= zscale; + } else + coord = coord0[m]; if (wstyle[m] == VARIABLE) { if (estyle[m] == VARIABLE) { epsilon[m] = input->variable->compute_equal(eindex[m]); - if (epsilon[m] < 0.0) - error->all(FLERR,"Variable evaluation in fix wall gave bad value"); + if (epsilon[m] < 0.0) error->all(FLERR, "Variable evaluation in fix wall gave bad value"); } if (sstyle[m] == VARIABLE) { sigma[m] = input->variable->compute_equal(sindex[m]); - if (sigma[m] < 0.0) - error->all(FLERR,"Variable evaluation in fix wall gave bad value"); + if (sigma[m] < 0.0) error->all(FLERR, "Variable evaluation in fix wall gave bad value"); } precompute(m); } - wall_particle(m,wallwhich[m],coord); + wall_particle(m, wallwhich[m], coord); } if (varflag) modify->addstep_compute(update->ntimestep + 1); @@ -366,7 +408,7 @@ double FixWall::compute_scalar() // only sum across procs one time if (eflag == 0) { - MPI_Allreduce(ewall,ewall_all,nwall+1,MPI_DOUBLE,MPI_SUM,world); + MPI_Allreduce(ewall, ewall_all, nwall + 1, MPI_DOUBLE, MPI_SUM, world); eflag = 1; } return ewall_all[0]; @@ -381,8 +423,8 @@ double FixWall::compute_vector(int n) // only sum across procs one time if (eflag == 0) { - MPI_Allreduce(ewall,ewall_all,nwall+1,MPI_DOUBLE,MPI_SUM,world); + MPI_Allreduce(ewall, ewall_all, nwall + 1, MPI_DOUBLE, MPI_SUM, world); eflag = 1; } - return ewall_all[n+1]; + return ewall_all[n + 1]; } diff --git a/src/fix_wall.h b/src/fix_wall.h index 32fccea2b3..12ceb17b49 100644 --- a/src/fix_wall.h +++ b/src/fix_wall.h @@ -50,8 +50,8 @@ class FixWall : public Fix { double xscale, yscale, zscale; int estyle[6], sstyle[6], astyle[6], wstyle[6]; int eindex[6], sindex[6]; - char *estr[6], *sstr[6], *astr[6]; - int varflag; // 1 if any wall position,epsilon,sigma is a var + char *estr[6], *sstr[6], *astr[6], *lstr[6], *fstr[6], *kstr[6]; + int varflag; // 1 if any wall position,epsilon,sigma is a variable int eflag; // per-wall flag for energy summation int ilevel_respa; int fldflag; diff --git a/src/fix_wall_harmonic.cpp b/src/fix_wall_harmonic.cpp index a8e4127523..0e8fa22684 100644 --- a/src/fix_wall_harmonic.cpp +++ b/src/fix_wall_harmonic.cpp @@ -16,7 +16,6 @@ #include "error.h" using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/fix_wall_lj126.cpp b/src/fix_wall_lj126.cpp index 78d9656e7f..f7458448be 100644 --- a/src/fix_wall_lj126.cpp +++ b/src/fix_wall_lj126.cpp @@ -18,7 +18,6 @@ #include "error.h" using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/fix_wall_lj93.cpp b/src/fix_wall_lj93.cpp index 1e02b61fe1..7c4db056f9 100644 --- a/src/fix_wall_lj93.cpp +++ b/src/fix_wall_lj93.cpp @@ -18,7 +18,6 @@ #include "error.h" using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ diff --git a/src/fix_wall_morse.cpp b/src/fix_wall_morse.cpp index a1427b380f..6c5eee885d 100644 --- a/src/fix_wall_morse.cpp +++ b/src/fix_wall_morse.cpp @@ -18,7 +18,6 @@ #include using namespace LAMMPS_NS; -using namespace FixConst; /* ---------------------------------------------------------------------- */ @@ -72,7 +71,7 @@ void FixWallMorse::wall_particle(int m, int which, double coord) } double dr = delta - sigma[m]; double dexp = exp(-alpha[m] * dr); - fwall = side * coeff1[m] * (dexp * dexp - dexp) / delta; + fwall = side * coeff1[m] * (dexp * dexp - dexp); ewall[0] += epsilon[m] * (dexp * dexp - 2.0 * dexp) - offset[m]; f[i][dim] -= fwall; ewall[m + 1] += fwall; diff --git a/src/fix_wall_table.cpp b/src/fix_wall_table.cpp new file mode 100644 index 0000000000..dc1dda4504 --- /dev/null +++ b/src/fix_wall_table.cpp @@ -0,0 +1,472 @@ +/* ---------------------------------------------------------------------- + LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator + https://www.lammps.org/, Sandia National Laboratories + LAMMPS development team: developers@lammps.org + + Copyright (2003) Sandia Corporation. Under the terms of Contract + DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains + certain rights in this software. This software is distributed under + the GNU General Public License. + + See the README file in the top-level LAMMPS directory. +------------------------------------------------------------------------- */ + +#include "fix_wall_table.h" +#include "atom.h" +#include "comm.h" +#include "error.h" +#include "memory.h" +#include "table_file_reader.h" +#include "tokenizer.h" + +#include + +using namespace LAMMPS_NS; + +enum { NONE, LINEAR, SPLINE }; + +static constexpr double BIGNUM = 1.0e300; + +/* ---------------------------------------------------------------------- */ + +FixWallTable::FixWallTable(LAMMPS *lmp, int narg, char **arg) : + FixWall(lmp, narg, arg), tables(nullptr) +{ + dynamic_group_allow = 1; + tabstyle = NONE; + if (strcmp(arg[3], "linear") == 0) + tabstyle = LINEAR; + else if (strcmp(arg[3], "spline") == 0) + tabstyle = SPLINE; + else + error->all(FLERR, "Unknown table style {} in fix {}", arg[3], style); + + tablength = utils::inumeric(FLERR, arg[4], false, lmp); + if (tablength < 2) error->all(FLERR, "Illegal number of fix {} table entries", style); +} + +/* ---------------------------------------------------------------------- */ + +void FixWallTable::post_constructor() +{ + memory->sfree(tables); + tables = (Table *) memory->smalloc(nwall * sizeof(Table), "wall:tables"); + + for (int m = 0; m < nwall; ++m) { + Table &tb = tables[m]; + null_table(tb); + + if (comm->me == 0) read_table(tb, fstr[m], kstr[m]); + bcast_table(tb); + + // error check on table parameters + if (tb.ninput <= 1) error->all(FLERR, "Invalid fix {} table length: {}", style, tb.ninput); + tb.lo = tb.rfile[0]; + tb.hi = tb.rfile[tb.ninput - 1]; + if (tb.lo >= tb.hi) error->all(FLERR, "Fix {} table distance values do not increase", style); + if (cutoff[m] > tb.hi) + error->all(FLERR, "Fix {} wall cutoff {} is larger than table outer cutoff {}", style, + cutoff[m], tb.hi); + + // spline read-in data and compute r,e,f arrays within table + spline_table(tb); + compute_table(tb); + } +} + +/* ---------------------------------------------------------------------- */ + +FixWallTable::~FixWallTable() +{ + for (int m = 0; m < nwall; m++) free_table(tables[m]); + memory->sfree(tables); +} + +/* ---------------------------------------------------------------------- + compute the potential energy offset so it can be shifted to zero at the cutoff +------------------------------------------------------------------------- */ + +void FixWallTable::precompute(int m) +{ + double u, mdu; + + // always use linear interpolation to determine the offset, since we may be at the + // outer table cutoff and spline interpolation would cause out-of-bounds array accesses + int savedtabstyle = tabstyle; + tabstyle = LINEAR; + uf_lookup(m, cutoff[m], u, mdu); + offset[m] = u; + tabstyle = savedtabstyle; +} + +/* ---------------------------------------------------------------------- + interaction of all particles in group with a wall + m = index of wall coeffs + which = xlo,xhi,ylo,yhi,zlo,zhi + error if any particle is on or behind wall +------------------------------------------------------------------------- */ + +void FixWallTable::wall_particle(int m, int which, double coord) +{ + double delta, fwall, vn, u, mdu; + + double **x = atom->x; + double **f = atom->f; + int *mask = atom->mask; + int nlocal = atom->nlocal; + + int dim = which / 2; + int side = which % 2; + if (side == 0) side = -1; + + int onflag = 0; + + for (int i = 0; i < nlocal; i++) + if (mask[i] & groupbit) { + if (side < 0) + delta = x[i][dim] - coord; + else + delta = coord - x[i][dim]; + if (delta >= cutoff[m]) continue; + if (delta <= 0.0) { + onflag = 1; + continue; + } + + uf_lookup(m, delta, u, mdu); + fwall = side * mdu; + f[i][dim] -= fwall; + ewall[0] += u - offset[m]; + ewall[m + 1] += fwall; + + if (evflag) { + if (side < 0) + vn = -fwall * delta; + else + vn = fwall * delta; + v_tally(dim, i, vn); + } + } + + if (onflag) error->one(FLERR, "Particle on or inside fix {} surface", style); +} + +/* ---------------------------------------------------------------------- */ + +void FixWallTable::null_table(Table &tb) +{ + tb.rfile = tb.efile = tb.ffile = nullptr; + tb.e2file = tb.f2file = nullptr; + tb.r = tb.e = tb.de = nullptr; + tb.f = tb.df = tb.e2 = tb.f2 = nullptr; +} + +/* ---------------------------------------------------------------------- */ + +void FixWallTable::free_table(Table &tb) +{ + memory->destroy(tb.rfile); + memory->destroy(tb.efile); + memory->destroy(tb.ffile); + memory->destroy(tb.e2file); + memory->destroy(tb.f2file); + + memory->destroy(tb.r); + memory->destroy(tb.e); + memory->destroy(tb.de); + memory->destroy(tb.f); + memory->destroy(tb.df); + memory->destroy(tb.e2); + memory->destroy(tb.f2); +} + +/* ---------------------------------------------------------------------- */ + +void FixWallTable::read_table(Table &tb, const std::string &tabfile, const std::string &keyword) +{ + TableFileReader reader(lmp, tabfile, "fix wall/table"); + + char *line = reader.find_section_start(keyword); + if (!line) error->one(FLERR, "Did not find keyword {} in table file", keyword); + + // read args on 2nd line of section + // allocate table arrays for file values + + line = reader.next_line(); + param_extract(tb, line); + memory->create(tb.rfile, tb.ninput, "wall:rfile"); + memory->create(tb.efile, tb.ninput, "wall:efile"); + memory->create(tb.ffile, tb.ninput, "wall:ffile"); + + // read r,e,f table values from file + + reader.skip_line(); + for (int i = 0; i < tb.ninput; i++) { + line = reader.next_line(); + if (!line) + error->one(FLERR, "Data missing when parsing wall table '{}' line {} of {}.", keyword, i + 1, + tb.ninput); + try { + ValueTokenizer values(line); + values.next_int(); + tb.rfile[i] = values.next_double(); + tb.efile[i] = values.next_double(); + tb.ffile[i] = values.next_double(); + } catch (TokenizerException &e) { + error->one(FLERR, "Error parsing wall table '{}' line {} of {}. {}\nLine was: {}", keyword, + i + 1, tb.ninput, e.what(), line); + } + } + + // warn if force != dE/dr at any point that is not an inflection point + // check via secant approximation to dE/dr + // skip two end points since do not have surrounding secants + // inflection point is where curvature changes sign + + double r, e, f, rprev, rnext, eprev, enext, fleft, fright; + + int ferror = 0; + for (int i = 1; i < tb.ninput - 1; i++) { + r = tb.rfile[i]; + rprev = tb.rfile[i - 1]; + rnext = tb.rfile[i + 1]; + e = tb.efile[i]; + eprev = tb.efile[i - 1]; + enext = tb.efile[i + 1]; + f = tb.ffile[i]; + fleft = -(e - eprev) / (r - rprev); + fright = -(enext - e) / (rnext - r); + if (f < fleft && f < fright) ferror++; + if (f > fleft && f > fright) ferror++; + } + + if (ferror) + error->warning(FLERR, + "{} of {} force values in table are inconsistent with -dE/dr.\n" + "WARNING: Should only be flagged at inflection points", + ferror, tb.ninput); +} + +/* ---------------------------------------------------------------------- + build spline representation of e,f over entire range of read-in table + this function sets these values in e2file,f2file +------------------------------------------------------------------------- */ + +void FixWallTable::spline_table(Table &tb) +{ + memory->create(tb.e2file, tb.ninput, "wall:e2file"); + memory->create(tb.f2file, tb.ninput, "wall:f2file"); + + double ep0 = -tb.ffile[0]; + double epn = -tb.ffile[tb.ninput - 1]; + spline(tb.rfile, tb.efile, tb.ninput, ep0, epn, tb.e2file); + + if (tb.fpflag == 0) { + tb.fplo = (tb.ffile[1] - tb.ffile[0]) / (tb.rfile[1] - tb.rfile[0]); + tb.fphi = (tb.ffile[tb.ninput - 1] - tb.ffile[tb.ninput - 2]) / + (tb.rfile[tb.ninput - 1] - tb.rfile[tb.ninput - 2]); + } + + double fp0 = tb.fplo; + double fpn = tb.fphi; + spline(tb.rfile, tb.ffile, tb.ninput, fp0, fpn, tb.f2file); +} + +/* ---------------------------------------------------------------------- + compute r,e,f vectors from splined values +------------------------------------------------------------------------- */ + +void FixWallTable::compute_table(Table &tb) +{ + // delta = table spacing for N-1 bins + int tlm1 = tablength - 1; + + tb.delta = (tb.hi - tb.lo) / tlm1; + tb.invdelta = 1.0 / tb.delta; + tb.deltasq6 = tb.delta * tb.delta / 6.0; + + // N-1 evenly spaced bins in r from min to max + // r,e,f = value at lower edge of bin + // de,df values = delta values of e,f + // r,e,f are N in length so de,df arrays can compute difference + + memory->create(tb.r, tablength, "wall:r"); + memory->create(tb.e, tablength, "wall:e"); + memory->create(tb.de, tablength, "wall:de"); + memory->create(tb.f, tablength, "wall:f"); + memory->create(tb.df, tablength, "wall:df"); + memory->create(tb.e2, tablength, "wall:e2"); + memory->create(tb.f2, tablength, "wall:f2"); + + double a; + for (int i = 0; i < tablength; i++) { + a = tb.lo + i * tb.delta; + tb.r[i] = a; + tb.e[i] = splint(tb.rfile, tb.efile, tb.e2file, tb.ninput, a); + tb.f[i] = splint(tb.rfile, tb.ffile, tb.f2file, tb.ninput, a); + } + + for (int i = 0; i < tlm1; i++) { + tb.de[i] = tb.e[i + 1] - tb.e[i]; + tb.df[i] = tb.f[i + 1] - tb.f[i]; + } + // get final elements from linear extrapolation + tb.de[tlm1] = 2.0 * tb.de[tlm1 - 1] - tb.de[tlm1 - 2]; + tb.df[tlm1] = 2.0 * tb.df[tlm1 - 1] - tb.df[tlm1 - 2]; + + double ep0 = -tb.f[0]; + double epn = -tb.f[tlm1]; + spline(tb.r, tb.e, tablength, ep0, epn, tb.e2); + spline(tb.r, tb.f, tablength, tb.fplo, tb.fphi, tb.f2); +} + +/* ---------------------------------------------------------------------- + extract attributes from parameter line in table section + format of line: N value FP fplo fphi + N is required, other params are optional +------------------------------------------------------------------------- */ + +void FixWallTable::param_extract(Table &tb, char *line) +{ + tb.ninput = 0; + tb.fpflag = 0; + + try { + ValueTokenizer values(line); + + while (values.has_next()) { + std::string word = values.next_string(); + + if (word == "N") { + tb.ninput = values.next_int(); + } else if (word == "FP") { + tb.fpflag = 1; + tb.fplo = values.next_double(); + tb.fphi = values.next_double(); + } else { + error->one(FLERR, "Invalid keyword {} in fix {} table parameters", word, style); + } + } + } catch (TokenizerException &e) { + error->one(FLERR, e.what()); + } + + if (tb.ninput == 0) error->one(FLERR, "Fix {} parameters did not set N", style); +} + +/* ---------------------------------------------------------------------- + broadcast read-in table info from proc 0 to other procs + this function communicates these values in Table: + ninput,rfile,efile,ffile,fpflag,fplo,fphi +------------------------------------------------------------------------- */ + +void FixWallTable::bcast_table(Table &tb) +{ + MPI_Bcast(&tb.ninput, 1, MPI_INT, 0, world); + + if (comm->me > 0) { + memory->create(tb.rfile, tb.ninput, "wall:rfile"); + memory->create(tb.efile, tb.ninput, "wall:efile"); + memory->create(tb.ffile, tb.ninput, "wall:ffile"); + } + + MPI_Bcast(tb.rfile, tb.ninput, MPI_DOUBLE, 0, world); + MPI_Bcast(tb.efile, tb.ninput, MPI_DOUBLE, 0, world); + MPI_Bcast(tb.ffile, tb.ninput, MPI_DOUBLE, 0, world); + + MPI_Bcast(&tb.fpflag, 1, MPI_INT, 0, world); + if (tb.fpflag) { + MPI_Bcast(&tb.fplo, 1, MPI_DOUBLE, 0, world); + MPI_Bcast(&tb.fphi, 1, MPI_DOUBLE, 0, world); + } +} + +/* ---------------------------------------------------------------------- + spline and splint routines modified from Numerical Recipes +------------------------------------------------------------------------- */ + +void FixWallTable::spline(double *x, double *y, int n, double yp1, double ypn, double *y2) +{ + int i, k; + double p, qn, sig, un; + auto u = new double[n]; + + if (yp1 > BIGNUM) + y2[0] = u[0] = 0.0; + else { + y2[0] = -0.5; + u[0] = (3.0 / (x[1] - x[0])) * ((y[1] - y[0]) / (x[1] - x[0]) - yp1); + } + for (i = 1; i < n - 1; i++) { + sig = (x[i] - x[i - 1]) / (x[i + 1] - x[i - 1]); + p = sig * y2[i - 1] + 2.0; + y2[i] = (sig - 1.0) / p; + u[i] = (y[i + 1] - y[i]) / (x[i + 1] - x[i]) - (y[i] - y[i - 1]) / (x[i] - x[i - 1]); + u[i] = (6.0 * u[i] / (x[i + 1] - x[i - 1]) - sig * u[i - 1]) / p; + } + if (ypn > BIGNUM) + qn = un = 0.0; + else { + qn = 0.5; + un = (3.0 / (x[n - 1] - x[n - 2])) * (ypn - (y[n - 1] - y[n - 2]) / (x[n - 1] - x[n - 2])); + } + y2[n - 1] = (un - qn * u[n - 2]) / (qn * y2[n - 2] + 1.0); + for (k = n - 2; k >= 0; k--) y2[k] = y2[k] * y2[k + 1] + u[k]; + + delete[] u; +} + +/* ---------------------------------------------------------------------- */ + +double FixWallTable::splint(double *xa, double *ya, double *y2a, int n, double x) +{ + int klo, khi, k; + double h, b, a, y; + + klo = 0; + khi = n - 1; + while (khi - klo > 1) { + k = (khi + klo) >> 1; + if (xa[k] > x) + khi = k; + else + klo = k; + } + h = xa[khi] - xa[klo]; + a = (xa[khi] - x) / h; + b = (x - xa[klo]) / h; + y = a * ya[klo] + b * ya[khi] + + ((a * a * a - a) * y2a[klo] + (b * b * b - b) * y2a[khi]) * (h * h) / 6.0; + return y; +} + +/* ---------------------------------------------------------------------- + calculate potential u and force f at distance x + ensure x is between wall min/max, exit with error if not +------------------------------------------------------------------------- */ + +void FixWallTable::uf_lookup(int m, double x, double &u, double &f) +{ + double fraction, a, b; + const Table &tb = tables[m]; + const int itable = static_cast((x - tb.lo) * tb.invdelta); + if (itable < 0) + error->one(FLERR, "Particle / wall distance < table inner cutoff: {:.8}", x); + else if (itable >= tablength) + error->one(FLERR, "Particle / wall distance > table outer cutoff: {:.8}", x); + + if (tabstyle == LINEAR) { + fraction = (x - tb.r[itable]) * tb.invdelta; + u = tb.e[itable] + fraction * tb.de[itable]; + f = tb.f[itable] + fraction * tb.df[itable]; + } else if (tabstyle == SPLINE) { + fraction = (x - tb.r[itable]) * tb.invdelta; + + b = (x - tb.r[itable]) * tb.invdelta; + a = 1.0 - b; + u = a * tb.e[itable] + b * tb.e[itable + 1] + + ((a * a * a - a) * tb.e2[itable] + (b * b * b - b) * tb.e2[itable + 1]) * tb.deltasq6; + f = a * tb.f[itable] + b * tb.f[itable + 1] + + ((a * a * a - a) * tb.f2[itable] + (b * b * b - b) * tb.f2[itable + 1]) * tb.deltasq6; + } +} diff --git a/src/fix_wall_table.h b/src/fix_wall_table.h new file mode 100644 index 0000000000..368c2e3cd1 --- /dev/null +++ b/src/fix_wall_table.h @@ -0,0 +1,67 @@ +/* -*- c++ -*- ---------------------------------------------------------- + LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator + https://www.lammps.org/, Sandia National Laboratories + LAMMPS development team: developers@lammps.org + + Copyright (2003) Sandia Corporation. Under the terms of Contract + DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains + certain rights in this software. This software is distributed under + the GNU General Public License. + + See the README file in the top-level LAMMPS directory. +------------------------------------------------------------------------- */ + +#ifdef FIX_CLASS +// clang-format off +FixStyle(wall/table,FixWallTable); +// clang-format on +#else + +#ifndef LMP_FIX_WALL_TABLE_H +#define LMP_FIX_WALL_TABLE_H + +#include "fix_wall.h" + +namespace LAMMPS_NS { + +class FixWallTable : public FixWall { + public: + FixWallTable(class LAMMPS *, int, char **); + ~FixWallTable() override; + + void post_constructor() override; + void precompute(int) override; + void wall_particle(int, int, double) override; + + protected: + double offset[6]; + + int tabstyle, tablength; + struct Table { + int ninput, fpflag; + double fplo, fphi; + double lo, hi; + double *rfile, *efile, *ffile; + double *e2file, *f2file; + double delta, invdelta, deltasq6; + double *r, *e, *de, *f, *df, *e2, *f2; + }; + Table *tables; + + void null_table(Table &); + void free_table(Table &); + void read_table(Table &, const std::string &, const std::string &); + void bcast_table(Table &); + void spline_table(Table &); + void compute_table(Table &); + + void param_extract(Table &, char *); + void spline(double *, double *, int, double, double, double *); + double splint(double *, double *, double *, int, double); + void uf_lookup(int, double, double &, double &); +}; + +} // namespace LAMMPS_NS + +#endif +#endif diff --git a/tools/tabulate/README.md b/tools/tabulate/README.md index fb23e260a1..6f63d03a80 100644 --- a/tools/tabulate/README.md +++ b/tools/tabulate/README.md @@ -6,13 +6,14 @@ table, and angle style table To create tables, you need to define your energy and - optionally - force functions and then an instance of either the PairTabulate(), -BondTabulate(), AngleTabulate(), or DihedralTabulate() class from the -tabulate module and call its run() method to generate the table. Most -of the settings (number of points, minimum, maximum etc.) are provided -as command line flags. The run() method may be called multiple times to -generate multiple tables, for instance after changing parameters of the -energy/force functions. If the force function is not provided, the -force will be determined through numerical differentiation. +BondTabulate(), AngleTabulate(), DihedralTabulate(), or WallTabulate() +class from the tabulate module and call its run() method to generate the +table. Most of the settings (number of points, minimum, maximum etc.) +are provided as command line flags. The run() method may be called +multiple times to generate multiple tables, for instance after changing +parameters of the energy/force functions. If the force function is not +provided, the force will be determined from the energy function through +numerical differentiation. Please see the individual tabulation scripts in this folder for examples: @@ -24,7 +25,8 @@ Please see the individual tabulation scripts in this folder for examples: | angle_harmonic_tabulate.py | creates a table for a harmonic angle potential table | | dihedral_harmonic_tabulate.py | creates a table for a harmonic dihedral potential table | | pair_hybrid_tabulate.py | creates a Morse/Lennard-Jones hybrid potential table with smooth switching | -| pair_zbladd_tabulate.py | creates a table for hybrid/overlay to use ZBL repulsion with an EAM potential | +| wall_harmonic_tabulate.py | creates a table for fix wall/table with a simple repulsive harmonic potential | +| wall_multi_tabulate.py | creates a table for fix wall/table with multiple tables | | ------------------------------|-------------------------------------------------------------------------------| Common command line flags: diff --git a/tools/tabulate/tabulate.py b/tools/tabulate/tabulate.py index 3bba7c2ecf..c3cb3a256f 100755 --- a/tools/tabulate/tabulate.py +++ b/tools/tabulate/tabulate.py @@ -279,6 +279,53 @@ class DihedralTabulate(Tabulate): if self.args.filename != '-': self.fp.close() +################################################################################ +# create tabulation for fix wall/table +class WallTabulate(Tabulate): + def __init__(self, efunc, ffunc=None, units=None, comment=None): + super(WallTabulate, self).__init__('wall', efunc, ffunc, units, comment) + self.parser.add_argument('--eshift', '-e', dest='eshift', default=False, + action='store_true', + help="Shift potential energy to be zero at outer cutoff") + idx = [a.dest for a in self.parser._actions].index('xmin') + self.parser._actions[idx].required=False + self.parser._actions[idx].default=0.0 + try: + self.args = self.parser.parse_args() + except argparse.ArgumentError: + sys.exit() + + def run(self, label): + # sanity checks + if self.args.num < 2: + self.helpexit('Expect 2 or more points in table for tabulation') + if self.args.xmin < 0.0: + self.helpexit('Inner cutoff must not be negative') + + self.diff = self.args.diff + if not self.forcefunc: + self.diff = True + + table, xzero = mktable(self.tstyle, label, self.args.num, self.args.xmin, self.args.xmax, + self.energyfunc, self.args.diff, self.forcefunc) + print("# Minimum energy of tabulated potential is at %g" % xzero) + offset = 0.0 + if self.args.eshift: + offset=self.energyfunc(self.args.xmax) + + self.openfile(label) + + if self.forcefunc: + diffmin = -numdiff(self.args.xmin, self.forcefunc) + diffmax = -numdiff(self.args.xmax, self.forcefunc) + self.fp.write("N %d FP %- 22.15g %- 22.15g\n\n" % (self.args.num, diffmin, diffmax)) + else: + self.fp.write("N %d\n\n" % (self.args.num)) + + self.writetable(table, offset) + if self.args.filename != '-': + self.fp.close() + ################################################################################ if __name__ == "__main__": sys.exit("The tabulate module is not meant to be executed directly") diff --git a/tools/tabulate/wall_harmonic_tabulate.py b/tools/tabulate/wall_harmonic_tabulate.py new file mode 100755 index 0000000000..9424856dbf --- /dev/null +++ b/tools/tabulate/wall_harmonic_tabulate.py @@ -0,0 +1,25 @@ +#!/usr/bin/env python + +from tabulate import WallTabulate + +################################################################################ +import math + +k = 100.0 +rzero = 4.0 + +def harmonic_force(r): + dr = r - rzero + f = -2.0 * k * dr + return f + +def harmonic_energy(r): + dr = r - rzero + f = k * dr * dr + return f + +################################################################################ + +if __name__ == "__main__": + wtable = WallTabulate(harmonic_energy, harmonic_force, units='real') + wtable.run('HARMONIC') diff --git a/tools/tabulate/wall_multi_tabulate.py b/tools/tabulate/wall_multi_tabulate.py new file mode 100755 index 0000000000..576889cf75 --- /dev/null +++ b/tools/tabulate/wall_multi_tabulate.py @@ -0,0 +1,64 @@ +#!/usr/bin/env python + +from tabulate import WallTabulate +import os, sys +################################################################################ +import math + +k = 100.0 +rzero = 4.0 +epsilon = 0.02 +sigma = 2.0 +depth = 20.0 +width = 2.0 +r0 = 1.2 + +def harmonic_force(r): + dr = r - rzero + f = -2.0 * k * dr + return f + +def harmonic_energy(r): + dr = r - rzero + f = k * dr * dr + return f + +def lj126_force(r): + f = -4.0*epsilon*(-12.0*math.pow(sigma/r,12.0)/r + 6.0*math.pow(sigma/r,6.0)/r) + return f + +def lj126_energy(r): + f = 4.0*epsilon*(math.pow(sigma/r,12.0) - math.pow(sigma/r,6.0)) + return f + +def morse_energy(r): + ralpha = math.exp(-width*(r-r0)) + f = depth * (-1.0 + (1.0 - ralpha) * (1.0 - ralpha)) + return f + +def morse_force(r): + ralpha = math.exp(-width*(r-r0)) + f = -2.0 * depth * width * (1.0 -ralpha) * ralpha + return f + + +################################################################################ + +if __name__ == "__main__": + fname = 'walltab.dat' + if os.path.exists(fname): + os.remove(fname) + sys.argv.append('--filename') + sys.argv.append(fname) + sys.argv.append('--num-points') + sys.argv.append('400') + sys.argv.append('--inner') + sys.argv.append('0.01') + sys.argv.append('--outer') + sys.argv.append('4.0') + wtable = WallTabulate(harmonic_energy, harmonic_force, units='real') + wtable.run('HARMONIC') + wtable = WallTabulate(lj126_energy, lj126_force, units='real') + wtable.run('LJ126') + wtable = WallTabulate(morse_energy, morse_force, units='real') + wtable.run('MORSE') diff --git a/unittest/force-styles/tests/fix-timestep-wall_lepton_const.yaml b/unittest/force-styles/tests/fix-timestep-wall_lepton_const.yaml new file mode 100644 index 0000000000..947bc6a95a --- /dev/null +++ b/unittest/force-styles/tests/fix-timestep-wall_lepton_const.yaml @@ -0,0 +1,82 @@ +--- +lammps_version: 8 Feb 2023 +date_generated: Thu Feb 23 00:40:51 2023 +epsilon: 4e-14 +skip_tests: +prerequisites: ! | + atom full + fix wall/lepton +pre_commands: ! | + boundary p f p +post_commands: ! | + fix move all nve + fix test solute wall/lepton ylo EDGE "k*(r-rc)^2;k=100.0" 5.0 yhi EDGE "k*(r-rc)^2;k=100.0" 5.0 + fix_modify test virial yes +input_file: in.fourmol +natoms: 29 +run_stress: ! |2- + 0.0000000000000000e+00 -7.2422093200265749e+02 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 +global_scalar: 42.69977443532441 +global_vector: ! |- + 2 0 -161.92409617466126 +run_pos: ! |2 + 1 -2.7051715090682593e-01 2.4891718422041942e+00 -1.6687343912524535e-01 + 2 3.1037661579862175e-01 2.9347166386691113e+00 -8.5496435221221156e-01 + 3 -7.0402515865264603e-01 1.2304739304383521e+00 -6.2777422080240730e-01 + 4 -1.5818156002522876e+00 1.4837443919066966e+00 -1.2538703954644463e+00 + 5 -9.0719963033698159e-01 9.2651871779341399e-01 3.9954137559444142e-01 + 6 2.4831695467823400e-01 2.8312974957866005e-01 -1.2314232372542311e+00 + 7 3.4143527599853957e-01 -2.2646552136496162e-02 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-3.9330842459619779e+00 + 21 4.9040128073837339e+00 -4.0752348170758461e+00 -3.6210314709795299e+00 + 22 4.3582355554510048e+00 -4.2126119427061379e+00 -4.4612844196307497e+00 + 23 5.7439382849366911e+00 -3.5821957939240279e+00 -3.8766361295959513e+00 + 24 2.0689243582618388e+00 3.1513346906720905e+00 3.1550389755134005e+00 + 25 1.3045351331892774e+00 3.2665125705550957e+00 2.5111855258151388e+00 + 26 2.5809237402747862e+00 4.0117602605470681e+00 3.2212060529139430e+00 + 27 -1.9611343130344261e+00 -4.3563411931314180e+00 2.1098293115505782e+00 + 28 -2.7473562684511403e+00 -4.0200819932374339e+00 1.5830052163432258e+00 + 29 -1.3126000191357743e+00 -3.5962518039473323e+00 2.2746342468733483e+00 +run_vel: ! |2 + 1 8.0432349631399738e-03 1.4401841389211066e-02 4.9594370365888983e-03 + 2 6.1330361195047721e-03 -2.0880295268721639e-02 -2.0467529305087918e-03 + 3 -8.3074380171099371e-03 -1.3074180712034015e-02 -4.0925567431707903e-03 + 4 -3.7694367867060264e-03 -6.5650784618522711e-03 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a/unittest/force-styles/tests/fix-timestep-wall_morse_const.yaml b/unittest/force-styles/tests/fix-timestep-wall_morse_const.yaml index 89290d9d7d..391070609f 100644 --- a/unittest/force-styles/tests/fix-timestep-wall_morse_const.yaml +++ b/unittest/force-styles/tests/fix-timestep-wall_morse_const.yaml @@ -1,6 +1,6 @@ --- -lammps_version: 17 Feb 2022 -date_generated: Fri Mar 18 22:18:01 2022 +lammps_version: 8 Feb 2023 +date_generated: Thu Feb 23 15:26:55 2023 epsilon: 4e-14 skip_tests: prerequisites: ! | @@ -15,68 +15,68 @@ post_commands: ! | input_file: in.fourmol natoms: 29 run_stress: ! |2- - 0.0000000000000000e+00 -1.6447328969000660e+03 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 -global_scalar: -715.4154062573953 + 0.0000000000000000e+00 -7.4088044731917480e+03 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 +global_scalar: -860.4604684981359 global_vector: ! |- - 2 0 -362.76807567062644 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/dev/null +++ b/unittest/force-styles/tests/fix-timestep-wall_table_linear.yaml @@ -0,0 +1,82 @@ +--- +lammps_version: 8 Feb 2023 +date_generated: Thu Feb 23 00:56:30 2023 +epsilon: 4e-14 +skip_tests: +prerequisites: ! | + atom full + fix wall/table +pre_commands: ! | + boundary p f p +post_commands: ! | + fix move all nve + fix test solute wall/table linear 2000 ylo EDGE ${input_dir}/wall.table HARMONIC 4.0 yhi EDGE ${input_dir}/wall.table HARMONIC 4.0 + fix_modify test virial yes +input_file: in.fourmol +natoms: 29 +run_stress: ! |2- + 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 0.0000000000000000e+00 +global_scalar: 0 +global_vector: ! |- + 2 0 0 +run_pos: ! |2 + 1 -2.7045559775384032e-01 2.4912159905679729e+00 -1.6695851791541888e-01 + 2 3.1004029573899528e-01 2.9612354631094391e+00 -8.5466363037021464e-01 + 3 -7.0398551400789477e-01 1.2305509955830618e+00 -6.2777526944456274e-01 + 4 -1.5818159336499285e+00 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