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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@8226 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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sjplimp
2012-06-06 22:47:51 +00:00
parent f46eb9dedb
commit ef9e700545
1408 changed files with 58053 additions and 57983 deletions
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68
src/pair_soft.cpp
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@ -5,7 +5,7 @@
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
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.
@ -69,7 +69,7 @@ void PairSoft::compute(int eflag, int vflag)
ilist = list->ilist;
numneigh = list->numneigh;
firstneigh = list->firstneigh;
// loop over neighbors of my atoms
for (ii = 0; ii < inum; ii++) {
@ -93,26 +93,26 @@ void PairSoft::compute(int eflag, int vflag)
jtype = type[j];
if (rsq < cutsq[itype][jtype]) {
r = sqrt(rsq);
arg = MY_PI*r/cut[itype][jtype];
if (r > 0.0) fpair = factor_lj * prefactor[itype][jtype] *
sin(arg) * MY_PI/cut[itype][jtype]/r;
else fpair = 0.0;
r = sqrt(rsq);
arg = MY_PI*r/cut[itype][jtype];
if (r > 0.0) fpair = factor_lj * prefactor[itype][jtype] *
sin(arg) * MY_PI/cut[itype][jtype]/r;
else fpair = 0.0;
f[i][0] += delx*fpair;
f[i][1] += dely*fpair;
f[i][2] += delz*fpair;
if (newton_pair || j < nlocal) {
f[j][0] -= delx*fpair;
f[j][1] -= dely*fpair;
f[j][2] -= delz*fpair;
}
f[i][0] += delx*fpair;
f[i][1] += dely*fpair;
f[i][2] += delz*fpair;
if (newton_pair || j < nlocal) {
f[j][0] -= delx*fpair;
f[j][1] -= dely*fpair;
f[j][2] -= delz*fpair;
}
if (eflag)
evdwl = factor_lj * prefactor[itype][jtype] * (1.0+cos(arg));
if (eflag)
evdwl = factor_lj * prefactor[itype][jtype] * (1.0+cos(arg));
if (evflag) ev_tally(i,j,nlocal,newton_pair,
evdwl,0.0,fpair,delx,dely,delz);
if (evflag) ev_tally(i,j,nlocal,newton_pair,
evdwl,0.0,fpair,delx,dely,delz);
}
}
}
@ -121,7 +121,7 @@ void PairSoft::compute(int eflag, int vflag)
}
/* ----------------------------------------------------------------------
allocate all arrays
allocate all arrays
------------------------------------------------------------------------- */
void PairSoft::allocate()
@ -141,7 +141,7 @@ void PairSoft::allocate()
}
/* ----------------------------------------------------------------------
global settings
global settings
------------------------------------------------------------------------- */
void PairSoft::settings(int narg, char **arg)
@ -156,7 +156,7 @@ void PairSoft::settings(int narg, char **arg)
int i,j;
for (i = 1; i <= atom->ntypes; i++)
for (j = i+1; j <= atom->ntypes; j++)
if (setflag[i][j]) cut[i][j] = cut_global;
if (setflag[i][j]) cut[i][j] = cut_global;
}
}
@ -223,8 +223,8 @@ void PairSoft::write_restart(FILE *fp)
for (j = i; j <= atom->ntypes; j++) {
fwrite(&setflag[i][j],sizeof(int),1,fp);
if (setflag[i][j]) {
fwrite(&prefactor[i][j],sizeof(double),1,fp);
fwrite(&cut[i][j],sizeof(double),1,fp);
fwrite(&prefactor[i][j],sizeof(double),1,fp);
fwrite(&cut[i][j],sizeof(double),1,fp);
}
}
}
@ -246,12 +246,12 @@ void PairSoft::read_restart(FILE *fp)
if (me == 0) fread(&setflag[i][j],sizeof(int),1,fp);
MPI_Bcast(&setflag[i][j],1,MPI_INT,0,world);
if (setflag[i][j]) {
if (me == 0) {
fread(&prefactor[i][j],sizeof(double),1,fp);
fread(&cut[i][j],sizeof(double),1,fp);
}
MPI_Bcast(&prefactor[i][j],1,MPI_DOUBLE,0,world);
MPI_Bcast(&cut[i][j],1,MPI_DOUBLE,0,world);
if (me == 0) {
fread(&prefactor[i][j],sizeof(double),1,fp);
fread(&cut[i][j],sizeof(double),1,fp);
}
MPI_Bcast(&prefactor[i][j],1,MPI_DOUBLE,0,world);
MPI_Bcast(&cut[i][j],1,MPI_DOUBLE,0,world);
}
}
}
@ -283,16 +283,16 @@ void PairSoft::read_restart_settings(FILE *fp)
/* ---------------------------------------------------------------------- */
double PairSoft::single(int i, int j, int itype, int jtype, double rsq,
double factor_coul, double factor_lj,
double &fforce)
double factor_coul, double factor_lj,
double &fforce)
{
double r,arg,philj;
r = sqrt(rsq);
arg = MY_PI*r/cut[itype][jtype];
fforce = factor_lj * prefactor[itype][jtype] *
fforce = factor_lj * prefactor[itype][jtype] *
sin(arg) * MY_PI/cut[itype][jtype]/r;
philj = prefactor[itype][jtype] * (1.0+cos(arg));
return factor_lj*philj;
}