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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@925 f3b2605a-c512-4ea7-a41b-209d697bcdaa
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@ -25,9 +25,8 @@
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#include "comm.h"
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#include "force.h"
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#include "neighbor.h"
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#include "update.h"
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#include "neigh_list.h"
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#include "integrate.h"
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#include "respa.h"
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#include "memory.h"
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#include "error.h"
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@ -75,20 +74,18 @@ PairGayBerne::~PairGayBerne()
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void PairGayBerne::compute(int eflag, int vflag)
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{
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int i,j,k,m,numneigh,itype,jtype;
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int i,j,ii,jj,m,inum,jnum,itype,jtype;
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double one_eng,rsq,r2inv,r6inv,forcelj;
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double fforce[3],ttor[3],rtor[3],r12[3];
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double a1[3][3],b1[3][3],g1[3][3],a2[3][3],b2[3][3],g2[3][3],temp[3][3];
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int *neighs;
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int *ilist,*jlist,*numneigh,**firstneigh;
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double factor_lj;
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double **f;
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eng_vdwl = 0.0;
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if (vflag) for (i = 0; i < 6; i++) virial[i] = 0.0;
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if (vflag == 2) f = update->f_pair;
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else f = atom->f;
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double **x = atom->x;
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double **f = atom->f;
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double **quat = atom->quat;
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double **tor = atom->torque;
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int *type = atom->type;
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@ -97,12 +94,16 @@ void PairGayBerne::compute(int eflag, int vflag)
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double *special_lj = force->special_lj;
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int newton_pair = force->newton_pair;
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inum = list->inum;
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ilist = list->ilist;
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numneigh = list->numneigh;
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firstneigh = list->firstneigh;
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// loop over neighbors of my atoms
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for (i = 0; i < nlocal; i++) {
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for (ii = 0; ii < inum; ii++) {
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i = ilist[ii];
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itype = type[i];
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neighs = neighbor->firstneigh[i];
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numneigh = neighbor->numneigh[i];
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MathExtra::quat_to_mat_trans(quat[i],a1);
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MathExtra::diag_times3(well[itype],a1,temp);
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@ -110,8 +111,11 @@ void PairGayBerne::compute(int eflag, int vflag)
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MathExtra::diag_times3(shape[itype],a1,temp);
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MathExtra::transpose_times3(a1,temp,g1);
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for (k = 0; k < numneigh; k++) {
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j = neighs[k];
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jlist = firstneigh[i];
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jnum = numneigh[i];
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for (jj = 0; jj < jnum; jj++) {
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j = jlist[jj];
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if (j < nall) factor_lj = 1.0;
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else {
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@ -315,6 +319,31 @@ void PairGayBerne::coeff(int narg, char **arg)
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if (count == 0) error->all("Incorrect args for pair coefficients");
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}
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/* ----------------------------------------------------------------------
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init specific to this pair style
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------------------------------------------------------------------------- */
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void PairGayBerne::init_style()
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{
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if (!atom->quat_flag || !atom->torque_flag)
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error->all("Pair gayberne requires atom attributes quat, torque");
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int irequest = neighbor->request(this);
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// per-type shape precalculations
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for (int i = 1; i <= atom->ntypes; i++) {
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if (setwell[i]) {
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double *one = atom->shape[i];
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shape[i][0] = one[0]*one[0];
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shape[i][1] = one[1]*one[1];
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shape[i][2] = one[2]*one[2];
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lshape[i] = (one[0]*one[1]+one[2]*one[2])*sqrt(one[0]*one[1]);
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}
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}
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}
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/* ----------------------------------------------------------------------
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init for one type pair i,j and corresponding j,i
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------------------------------------------------------------------------- */
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@ -369,28 +398,6 @@ double PairGayBerne::init_one(int i, int j)
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return cut[i][j];
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}
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/* ----------------------------------------------------------------------
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check for necessary atom arrays
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------------------------------------------------------------------------- */
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void PairGayBerne::init_style()
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{
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if (!atom->quat_flag || !atom->torque_flag)
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error->all("Pair gayberne requires atom attributes quat, torque");
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// per-type shape precalculations
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for (int i = 1; i <= atom->ntypes; i++) {
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if (setwell[i]) {
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double *one = atom->shape[i];
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shape[i][0] = one[0]*one[0];
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shape[i][1] = one[1]*one[1];
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shape[i][2] = one[2]*one[2];
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lshape[i] = (one[0]*one[1]+one[2]*one[2])*sqrt(one[0]*one[1]);
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}
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}
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}
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/* ----------------------------------------------------------------------
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proc 0 writes to restart file
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------------------------------------------------------------------------- */
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@ -25,8 +25,8 @@ class PairGayBerne : public Pair {
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void compute(int, int);
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void settings(int, char **);
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void coeff(int, char **);
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double init_one(int, int);
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void init_style();
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double init_one(int, int);
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void write_restart(FILE *);
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void read_restart(FILE *);
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void write_restart_settings(FILE *);
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