void *lammps_extract_compute(void *ptr, char *id, int style, int type)
{
LAMMPS *lmp = (LAMMPS *) ptr;
int icompute = lmp->modify->find_compute(id);
if (icompute < 0) return NULL;
Compute *compute = lmp->modify->compute[icompute];
if (style == 0) {
if (type == 0) {
if (!compute->scalar_flag) return NULL;
if (compute->invoked_scalar != lmp->update->ntimestep)
compute->compute_scalar();
return (void *) &compute->scalar;
}
if (type == 1) {
if (!compute->vector_flag) return NULL;
if (compute->invoked_vector != lmp->update->ntimestep)
compute->compute_vector();
return (void *) compute->vector;
}
if (type == 2) {
if (!compute->array_flag) return NULL;
if (compute->invoked_array != lmp->update->ntimestep)
compute->compute_array();
return (void *) compute->array;
}
}
if (style == 1) {
if (!compute->peratom_flag) return NULL;
if (type == 1) {
if (compute->invoked_peratom != lmp->update->ntimestep)
compute->compute_peratom();
return (void *) compute->vector_atom;
}
if (type == 2) {
if (compute->invoked_peratom != lmp->update->ntimestep)
compute->compute_peratom();
return (void *) compute->array_atom;
}
}
if (style == 2) {
if (!compute->local_flag) return NULL;
if (type == 1) {
if (compute->invoked_local != lmp->update->ntimestep)
compute->compute_local();
return (void *) compute->vector_local;
}
if (type == 2) {
if (compute->invoked_local != lmp->update->ntimestep)
compute->compute_local();
return (void *) compute->array_local;
}
}
return NULL;
}
void ComputeAtomMolecule::compute_one(int m)
{
int vidx = value2index[m];
int aidx = argindex[m];
// invoke compute if not previously invoked
if (which[m] == COMPUTE) {
Compute *compute = modify->compute[vidx];
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
if (aidx == 0) {
peratom = compute->vector_atom;
nstride = 1;
} else {
if (compute->array_atom) peratom = &compute->array_atom[0][aidx-1];
else peratom = NULL;
nstride = compute->size_array_cols;
}
// access fix fields, check if fix frequency is a match
} else if (which[m] == FIX) {
if (update->ntimestep % modify->fix[vidx]->peratom_freq)
error->all(FLERR,"Fix used in compute atom/molecule not computed "
"at compatible time");
Fix *fix = modify->fix[vidx];
if (aidx == 0) {
peratom = fix->vector_atom;
nstride = 1;
} else {
peratom = &fix->array_atom[0][aidx-1];
nstride = fix->size_array_cols;
}
// evaluate atom-style variable
} else if (which[m] == VARIABLE) {
if (atom->nlocal > maxatom) {
maxatom = atom->nmax;
memory->destroy(scratch);
memory->create(scratch,maxatom,"atom/molecule:scratch");
peratom = scratch;
}
input->variable->compute_atom(vidx,igroup,peratom,1,0);
nstride = 1;
}
}
double ComputeReduceRegion::compute_one(int m, int flag)
{
int i;
Region *region = domain->regions[iregion];
region->prematch();
// invoke the appropriate attribute,compute,fix,variable
// compute scalar quantity by summing over atom scalars
// only include atoms in group
index = -1;
double **x = atom->x;
int *mask = atom->mask;
int nlocal = atom->nlocal;
int n = value2index[m];
int j = argindex[m];
double one;
if (mode == SUM) one = 0.0;
else if (mode == MINN) one = BIG;
else if (mode == MAXX) one = -BIG;
else if (mode == AVE) one = 0.0;
if (which[m] == X) {
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,x[i][j],i);
} else one = x[flag][j];
} else if (which[m] == V) {
double **v = atom->v;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,v[i][j],i);
} else one = v[flag][j];
} else if (which[m] == F) {
double **f = atom->f;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,f[i][j],i);
} else one = f[flag][j];
// invoke compute if not previously invoked
} else if (which[m] == COMPUTE) {
Compute *compute = modify->compute[n];
if (flavor[m] == PERATOM) {
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
if (j == 0) {
double *compute_vector = compute->vector_atom;
int n = nlocal;
if (flag < 0) {
for (i = 0; i < n; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,compute_vector[i],i);
} else one = compute_vector[flag];
} else {
double **compute_array = compute->array_atom;
int n = nlocal;
int jm1 = j - 1;
if (flag < 0) {
for (i = 0; i < n; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,compute_array[i][jm1],i);
} else one = compute_array[flag][jm1];
}
} else if (flavor[m] == LOCAL) {
if (!(compute->invoked_flag & INVOKED_LOCAL)) {
compute->compute_local();
compute->invoked_flag |= INVOKED_LOCAL;
}
if (j == 0) {
double *compute_vector = compute->vector_local;
int n = compute->size_local_rows;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,compute_vector[i],i);
else one = compute_vector[flag];
} else {
double **compute_array = compute->array_local;
int n = compute->size_local_rows;
int jm1 = j - 1;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,compute_array[i][jm1],i);
else one = compute_array[flag][jm1];
}
}
// check if fix frequency is a match
} else if (which[m] == FIX) {
if (update->ntimestep % modify->fix[n]->peratom_freq)
error->all(FLERR,"Fix used in compute reduce not computed at "
"compatible time");
Fix *fix = modify->fix[n];
if (flavor[m] == PERATOM) {
if (j == 0) {
double *fix_vector = fix->vector_atom;
int n = nlocal;
if (flag < 0) {
for (i = 0; i < n; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,fix_vector[i],i);
} else one = fix_vector[flag];
} else {
double **fix_array = fix->array_atom;
int jm1 = j - 1;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,fix_array[i][jm1],i);
} else one = fix_array[flag][jm1];
}
} else if (flavor[m] == LOCAL) {
if (j == 0) {
double *fix_vector = fix->vector_local;
int n = fix->size_local_rows;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,fix_vector[i],i);
else one = fix_vector[flag];
} else {
double **fix_array = fix->array_local;
int n = fix->size_local_rows;
int jm1 = j - 1;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,fix_array[i][jm1],i);
else one = fix_array[flag][jm1];
}
}
// evaluate atom-style variable
} else if (which[m] == VARIABLE) {
if (nlocal > maxatom) {
maxatom = atom->nmax;
memory->destroy(varatom);
memory->create(varatom,maxatom,"reduce/region:varatom");
}
input->variable->compute_atom(n,igroup,varatom,1,0);
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
combine(one,varatom[i],i);
} else one = varatom[flag];
}
return one;
}
double ComputeReduce::compute_one(int m, int flag)
{
int i;
// invoke the appropriate attribute,compute,fix,variable
// for flag = -1, compute scalar quantity by scanning over atom properties
// only include atoms in group for atom properties and per-atom quantities
index = -1;
int vidx = value2index[m];
int aidx = argindex[m];
int *mask = atom->mask;
int nlocal = atom->nlocal;
double one;
if (mode == SUM) one = 0.0;
else if (mode == MINN) one = BIG;
else if (mode == MAXX) one = -BIG;
else if (mode == AVE) one = 0.0;
if (which[m] == X) {
double **x = atom->x;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) combine(one,x[i][aidx],i);
} else one = x[flag][aidx];
} else if (which[m] == V) {
double **v = atom->v;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) combine(one,v[i][aidx],i);
} else one = v[flag][aidx];
} else if (which[m] == F) {
double **f = atom->f;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) combine(one,f[i][aidx],i);
} else one = f[flag][aidx];
// invoke compute if not previously invoked
} else if (which[m] == COMPUTE) {
Compute *compute = modify->compute[vidx];
if (flavor[m] == PERATOM) {
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
if (aidx == 0) {
double *comp_vec = compute->vector_atom;
int n = nlocal;
if (flag < 0) {
for (i = 0; i < n; i++)
if (mask[i] & groupbit) combine(one,comp_vec[i],i);
} else one = comp_vec[flag];
} else {
double **carray_atom = compute->array_atom;
int n = nlocal;
int aidxm1 = aidx - 1;
if (flag < 0) {
for (i = 0; i < n; i++)
if (mask[i] & groupbit) combine(one,carray_atom[i][aidxm1],i);
} else one = carray_atom[flag][aidxm1];
}
} else if (flavor[m] == LOCAL) {
if (!(compute->invoked_flag & INVOKED_LOCAL)) {
compute->compute_local();
compute->invoked_flag |= INVOKED_LOCAL;
}
if (aidx == 0) {
double *comp_vec = compute->vector_local;
int n = compute->size_local_rows;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,comp_vec[i],i);
else one = comp_vec[flag];
} else {
double **carray_local = compute->array_local;
int n = compute->size_local_rows;
int aidxm1 = aidx - 1;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,carray_local[i][aidxm1],i);
else one = carray_local[flag][aidxm1];
}
}
// access fix fields, check if fix frequency is a match
} else if (which[m] == FIX) {
if (update->ntimestep % modify->fix[vidx]->peratom_freq)
error->all("Fix used in compute reduce not computed at compatible time");
Fix *fix = modify->fix[vidx];
if (flavor[m] == PERATOM) {
if (aidx == 0) {
double *fix_vector = fix->vector_atom;
int n = nlocal;
if (flag < 0) {
for (i = 0; i < n; i++)
if (mask[i] & groupbit) combine(one,fix_vector[i],i);
} else one = fix_vector[flag];
} else {
double **fix_array = fix->array_atom;
int aidxm1 = aidx - 1;
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) combine(one,fix_array[i][aidxm1],i);
} else one = fix_array[flag][aidxm1];
}
} else if (flavor[m] == LOCAL) {
if (aidx == 0) {
double *fix_vector = fix->vector_local;
int n = fix->size_local_rows;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,fix_vector[i],i);
else one = fix_vector[flag];
} else {
double **fix_array = fix->array_local;
int n = fix->size_local_rows;
int aidxm1 = aidx - 1;
if (flag < 0)
for (i = 0; i < n; i++)
combine(one,fix_array[i][aidxm1],i);
else one = fix_array[flag][aidxm1];
}
}
// evaluate atom-style variable
} else if (which[m] == VARIABLE) {
if (nlocal > maxatom) {
maxatom = atom->nmax;
memory->destroy(varatom);
memory->create(varatom,maxatom,"reduce:varatom");
}
input->variable->compute_atom(vidx,igroup,varatom,1,0);
if (flag < 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) combine(one,varatom[i],i);
} else one = varatom[flag];
}
return one;
}
void FixAveAtom::end_of_step()
{
int i,j,m,n;
// skip if not step which requires doing something
bigint ntimestep = update->ntimestep;
if (ntimestep != nvalid) return;
// zero if first step
int nlocal = atom->nlocal;
if (irepeat == 0)
for (i = 0; i < nlocal; i++)
for (m = 0; m < nvalues; m++)
array[i][m] = 0.0;
// accumulate results of attributes,computes,fixes,variables to local copy
// compute/fix/variable may invoke computes so wrap with clear/add
modify->clearstep_compute();
int *mask = atom->mask;
for (m = 0; m < nvalues; m++) {
n = value2index[m];
j = argindex[m];
if (which[m] == X) {
double **x = atom->x;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += x[i][j];
} else if (which[m] == V) {
double **v = atom->v;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += v[i][j];
} else if (which[m] == F) {
double **f = atom->f;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += f[i][j];
// invoke compute if not previously invoked
} else if (which[m] == COMPUTE) {
Compute *compute = modify->compute[n];
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
if (j == 0) {
double *compute_vector = compute->vector_atom;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += compute_vector[i];
} else {
int jm1 = j - 1;
double **compute_array = compute->array_atom;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += compute_array[i][jm1];
}
// access fix fields, guaranteed to be ready
} else if (which[m] == FIX) {
if (j == 0) {
double *fix_vector = modify->fix[n]->vector_atom;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += fix_vector[i];
} else {
int jm1 = j - 1;
double **fix_array = modify->fix[n]->array_atom;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) array[i][m] += fix_array[i][jm1];
}
// evaluate atom-style variable
// final argument = 1 sums result to array
} else if (which[m] == VARIABLE && array)
input->variable->compute_atom(n,igroup,&array[0][m],nvalues,1);
}
// done if irepeat < nrepeat
// else reset irepeat and nvalid
irepeat++;
if (irepeat < nrepeat) {
nvalid += nevery;
modify->addstep_compute(nvalid);
return;
}
irepeat = 0;
nvalid = ntimestep+peratom_freq - (nrepeat-1)*nevery;
modify->addstep_compute(nvalid);
// average the final result for the Nfreq timestep
double repeat = nrepeat;
for (i = 0; i < nlocal; i++)
for (m = 0; m < nvalues; m++)
array[i][m] /= repeat;
}
void FixAveHisto::end_of_step()
{
int i,j,m;
// skip if not step which requires doing something
// error check if timestep was reset in an invalid manner
bigint ntimestep = update->ntimestep;
if (ntimestep < nvalid_last || ntimestep > nvalid)
error->all(FLERR,"Invalid timestep reset for fix ave/histo");
if (ntimestep != nvalid) return;
nvalid_last = nvalid;
// zero if first step
if (irepeat == 0) {
stats[0] = stats[1] = 0.0;
stats[2] = BIG;
stats[3] = -BIG;
for (i = 0; i < nbins; i++) bin[i] = 0.0;
}
// accumulate results of computes,fixes,variables to local copy
// compute/fix/variable may invoke computes so wrap with clear/add
modify->clearstep_compute();
for (i = 0; i < nvalues; i++) {
m = value2index[i];
j = argindex[i];
// atom attributes
if (which[i] == X)
bin_atoms(&atom->x[0][j],3);
else if (which[i] == V)
bin_atoms(&atom->v[0][j],3);
else if (which[i] == F)
bin_atoms(&atom->f[0][j],3);
// invoke compute if not previously invoked
if (which[i] == COMPUTE) {
Compute *compute = modify->compute[m];
if (kind == GLOBAL && mode == SCALAR) {
if (j == 0) {
if (!(compute->invoked_flag & INVOKED_SCALAR)) {
compute->compute_scalar();
compute->invoked_flag |= INVOKED_SCALAR;
}
bin_one(compute->scalar);
} else {
if (!(compute->invoked_flag & INVOKED_VECTOR)) {
compute->compute_vector();
compute->invoked_flag |= INVOKED_VECTOR;
}
bin_one(compute->vector[j-1]);
}
} else if (kind == GLOBAL && mode == VECTOR) {
if (j == 0) {
if (!(compute->invoked_flag & INVOKED_VECTOR)) {
compute->compute_vector();
compute->invoked_flag |= INVOKED_VECTOR;
}
bin_vector(compute->size_vector,compute->vector,1);
} else {
if (!(compute->invoked_flag & INVOKED_ARRAY)) {
compute->compute_array();
compute->invoked_flag |= INVOKED_ARRAY;
}
if (compute->array)
bin_vector(compute->size_array_rows,&compute->array[0][j-1],
compute->size_array_cols);
}
} else if (kind == PERATOM) {
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
if (j == 0)
bin_atoms(compute->vector_atom,1);
else if (compute->array_atom)
bin_atoms(&compute->array_atom[0][j-1],compute->size_peratom_cols);
} else if (kind == LOCAL) {
if (!(compute->invoked_flag & INVOKED_LOCAL)) {
compute->compute_local();
compute->invoked_flag |= INVOKED_LOCAL;
}
if (j == 0)
bin_vector(compute->size_local_rows,compute->vector_local,1);
else if (compute->array_local)
bin_vector(compute->size_local_rows,&compute->array_local[0][j-1],
compute->size_local_cols);
}
// access fix fields, guaranteed to be ready
} else if (which[i] == FIX) {
Fix *fix = modify->fix[m];
if (kind == GLOBAL && mode == SCALAR) {
if (j == 0) bin_one(fix->compute_scalar());
else bin_one(fix->compute_vector(j-1));
} else if (kind == GLOBAL && mode == VECTOR) {
if (j == 0) {
int n = fix->size_vector;
for (i = 0; i < n; i++) bin_one(fix->compute_vector(i));
} else {
int n = fix->size_vector;
for (i = 0; i < n; i++) bin_one(fix->compute_array(i,j-1));
}
} else if (kind == PERATOM) {
if (j == 0) bin_atoms(fix->vector_atom,1);
else if (fix->array_atom)
bin_atoms(fix->array_atom[j-1],fix->size_peratom_cols);
} else if (kind == LOCAL) {
if (j == 0) bin_vector(fix->size_local_rows,fix->vector_local,1);
else if (fix->array_local)
bin_vector(fix->size_local_rows,&fix->array_local[0][j-1],
fix->size_local_cols);
}
// evaluate equal-style variable
} else if (which[i] == VARIABLE && kind == GLOBAL) {
bin_one(input->variable->compute_equal(m));
} else if (which[i] == VARIABLE && kind == PERATOM) {
if (atom->nlocal > maxatom) {
memory->destroy(vector);
maxatom = atom->nmax;
memory->create(vector,maxatom,"ave/histo:vector");
}
input->variable->compute_atom(m,igroup,vector,1,0);
bin_atoms(vector,1);
}
}
// done if irepeat < nrepeat
// else reset irepeat and nvalid
irepeat++;
if (irepeat < nrepeat) {
nvalid += nevery;
modify->addstep_compute(nvalid);
return;
}
irepeat = 0;
nvalid = ntimestep + nfreq - (nrepeat-1)*nevery;
modify->addstep_compute(nvalid);
// merge histogram stats across procs if necessary
if (kind == PERATOM || kind == LOCAL) {
MPI_Allreduce(stats,stats_all,2,MPI_DOUBLE,MPI_SUM,world);
MPI_Allreduce(&stats[2],&stats_all[2],1,MPI_DOUBLE,MPI_MIN,world);
MPI_Allreduce(&stats[3],&stats_all[3],1,MPI_DOUBLE,MPI_MAX,world);
MPI_Allreduce(bin,bin_all,nbins,MPI_DOUBLE,MPI_SUM,world);
stats[0] = stats_all[0];
stats[1] = stats_all[1];
stats[2] = stats_all[2];
stats[3] = stats_all[3];
for (i = 0; i < nbins; i++) bin[i] = bin_all[i];
}
// if ave = ONE, only single Nfreq timestep value is needed
// if ave = RUNNING, combine with all previous Nfreq timestep values
// if ave = WINDOW, combine with nwindow most recent Nfreq timestep values
if (ave == ONE) {
stats_total[0] = stats[0];
stats_total[1] = stats[1];
stats_total[2] = stats[2];
stats_total[3] = stats[3];
for (i = 0; i < nbins; i++) bin_total[i] = bin[i];
} else if (ave == RUNNING) {
stats_total[0] += stats[0];
stats_total[1] += stats[1];
stats_total[2] = MIN(stats_total[2],stats[2]);
stats_total[3] = MAX(stats_total[3],stats[3]);
for (i = 0; i < nbins; i++) bin_total[i] += bin[i];
} else if (ave == WINDOW) {
stats_total[0] += stats[0];
if (window_limit) stats_total[0] -= stats_list[iwindow][0];
stats_list[iwindow][0] = stats[0];
stats_total[1] += stats[1];
if (window_limit) stats_total[1] -= stats_list[iwindow][1];
stats_list[iwindow][1] = stats[1];
if (window_limit) m = nwindow;
else m = iwindow+1;
stats_list[iwindow][2] = stats[2];
stats_total[2] = stats_list[0][2];
for (i = 1; i < m; i++)
stats_total[2] = MIN(stats_total[2],stats_list[i][2]);
stats_list[iwindow][3] = stats[3];
stats_total[3] = stats_list[0][3];
for (i = 1; i < m; i++)
stats_total[3] = MAX(stats_total[3],stats_list[i][3]);
for (i = 0; i < nbins; i++) {
bin_total[i] += bin[i];
if (window_limit) bin_total[i] -= bin_list[iwindow][i];
bin_list[iwindow][i] = bin[i];
}
iwindow++;
if (iwindow == nwindow) {
iwindow = 0;
window_limit = 1;
}
}
// output result to file
if (fp && me == 0) {
if (overwrite) fseek(fp,filepos,SEEK_SET);
fprintf(fp,BIGINT_FORMAT " %d %g %g %g %g\n",ntimestep,nbins,
stats_total[0],stats_total[1],stats_total[2],stats_total[3]);
if (stats_total[0] != 0.0)
for (i = 0; i < nbins; i++)
fprintf(fp,"%d %g %g %g\n",
i+1,coord[i],bin_total[i],bin_total[i]/stats_total[0]);
else
for (i = 0; i < nbins; i++)
fprintf(fp,"%d %g %g %g\n",i+1,coord[i],0.0,0.0);
fflush(fp);
if (overwrite) {
long fileend = ftell(fp);
ftruncate(fileno(fp),fileend);
}
}
}
void FixAveChunk::end_of_step()
{
int i,j,m,n,index;
// skip if not step which requires doing something
// error check if timestep was reset in an invalid manner
bigint ntimestep = update->ntimestep;
if (ntimestep < nvalid_last || ntimestep > nvalid)
error->all(FLERR,"Invalid timestep reset for fix ave/chunk");
if (ntimestep != nvalid) return;
nvalid_last = nvalid;
// first sample within single Nfreq epoch
// zero out arrays that accumulate over many samples, but not across epochs
// invoke setup_chunks() to determine current nchunk
// re-allocate per-chunk arrays if needed
// invoke lock() in two cases:
// if nrepeat > 1: so nchunk cannot change until Nfreq epoch is over,
// will be unlocked on last repeat of this Nfreq
// if ave = RUNNING/WINDOW and not yet locked:
// set forever, will be unlocked in fix destructor
// wrap setup_chunks in clearstep/addstep b/c it may invoke computes
// both nevery and nfreq are future steps,
// since call below to cchunk->ichunk()
// does not re-invoke internal cchunk compute on this same step
if (irepeat == 0) {
if (cchunk->computeflag) modify->clearstep_compute();
nchunk = cchunk->setup_chunks();
if (cchunk->computeflag) {
modify->addstep_compute(ntimestep+nevery);
modify->addstep_compute(ntimestep+nfreq);
}
allocate();
if (nrepeat > 1 && ave == ONE)
cchunk->lock(this,ntimestep,ntimestep+(nrepeat-1)*nevery);
else if ((ave == RUNNING || ave == WINDOW) && !lockforever) {
cchunk->lock(this,update->ntimestep,-1);
lockforever = 1;
}
for (m = 0; m < nchunk; m++) {
count_many[m] = count_sum[m] = 0.0;
for (i = 0; i < nvalues; i++) values_many[m][i] = 0.0;
}
}
// zero out arrays for one sample
for (m = 0; m < nchunk; m++) {
count_one[m] = 0.0;
for (i = 0; i < nvalues; i++) values_one[m][i] = 0.0;
}
// compute chunk/atom assigns atoms to chunk IDs
// extract ichunk index vector from compute
// ichunk = 1 to Nchunk for included atoms, 0 for excluded atoms
// wrap compute_ichunk in clearstep/addstep b/c it may invoke computes
if (cchunk->computeflag) modify->clearstep_compute();
cchunk->compute_ichunk();
int *ichunk = cchunk->ichunk;
if (cchunk->computeflag) modify->addstep_compute(ntimestep+nevery);
// perform the computation for one sample
// count # of atoms in each bin
// accumulate results of attributes,computes,fixes,variables to local copy
// sum within each chunk, only include atoms in fix group
// compute/fix/variable may invoke computes so wrap with clear/add
int *mask = atom->mask;
int nlocal = atom->nlocal;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0)
count_one[ichunk[i]-1]++;
modify->clearstep_compute();
for (m = 0; m < nvalues; m++) {
n = value2index[m];
j = argindex[m];
// V,F adds velocities,forces to values
if (which[m] == V || which[m] == F) {
double **attribute;
if (which[m] == V) attribute = atom->v;
else attribute = atom->f;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] += attribute[i][j];
}
// DENSITY_NUMBER adds 1 to values
} else if (which[m] == DENSITY_NUMBER) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] += 1.0;
}
// DENSITY_MASS or MASS adds mass to values
} else if (which[m] == DENSITY_MASS || which[m] == MASS) {
int *type = atom->type;
double *mass = atom->mass;
double *rmass = atom->rmass;
if (rmass) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] += rmass[i];
}
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] += mass[type[i]];
}
}
// TEMPERATURE adds KE to values
// subtract and restore velocity bias if requested
} else if (which[m] == TEMPERATURE) {
if (biasflag) {
if (tbias->invoked_scalar != ntimestep) tbias->compute_scalar();
tbias->remove_bias_all();
}
double **v = atom->v;
int *type = atom->type;
double *mass = atom->mass;
double *rmass = atom->rmass;
if (rmass) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] +=
(v[i][0]*v[i][0] + v[i][1]*v[i][1] + v[i][2]*v[i][2]) * rmass[i];
}
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] +=
(v[i][0]*v[i][0] + v[i][1]*v[i][1] + v[i][2]*v[i][2]) *
mass[type[i]];
}
}
if (biasflag) tbias->restore_bias_all();
// COMPUTE adds its scalar or vector component to values
// invoke compute if not previously invoked
} else if (which[m] == COMPUTE) {
Compute *compute = modify->compute[n];
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
double *vector = compute->vector_atom;
double **array = compute->array_atom;
int jm1 = j - 1;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
if (j == 0) values_one[index][m] += vector[i];
else values_one[index][m] += array[i][jm1];
}
// FIX adds its scalar or vector component to values
// access fix fields, guaranteed to be ready
} else if (which[m] == FIX) {
double *vector = modify->fix[n]->vector_atom;
double **array = modify->fix[n]->array_atom;
int jm1 = j - 1;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
if (j == 0) values_one[index][m] += vector[i];
else values_one[index][m] += array[i][jm1];
}
// VARIABLE adds its per-atom quantities to values
// evaluate atom-style variable
} else if (which[m] == VARIABLE) {
if (nlocal > maxvar) {
maxvar = atom->nmax;
memory->destroy(varatom);
memory->create(varatom,maxvar,"ave/chunk:varatom");
}
input->variable->compute_atom(n,igroup,varatom,1,0);
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && ichunk[i] > 0) {
index = ichunk[i]-1;
values_one[index][m] += varatom[i];
}
}
}
// process the current sample
// if normflag = ALL, accumulate values,count separately to many
// if normflag = SAMPLE, one = value/count, accumulate one to many
// count is MPI summed here, value is MPI summed below across samples
// exception is TEMPERATURE: normalize by DOF
// exception is DENSITYs: no normalize by atom count
// exception is scaleflag = NOSCALE : no normalize by atom count
// check last so other options can take precedence
double mvv2e = force->mvv2e;
double boltz = force->boltz;
if (normflag == ALL) {
for (m = 0; m < nchunk; m++) {
count_many[m] += count_one[m];
for (j = 0; j < nvalues; j++)
values_many[m][j] += values_one[m][j];
}
} else if (normflag == SAMPLE) {
MPI_Allreduce(count_one,count_many,nchunk,MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nchunk; m++) {
if (count_many[m] > 0.0)
for (j = 0; j < nvalues; j++) {
if (which[j] == TEMPERATURE)
values_many[m][j] += mvv2e*values_one[m][j] /
((cdof + adof*count_many[m]) * boltz);
else if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS ||
scaleflag == NOSCALE)
values_many[m][j] += values_one[m][j];
else
values_many[m][j] += values_one[m][j]/count_many[m];
}
count_sum[m] += count_many[m];
}
}
// done if irepeat < nrepeat
// else reset irepeat and nvalid
irepeat++;
if (irepeat < nrepeat) {
nvalid += nevery;
modify->addstep_compute(nvalid);
return;
}
irepeat = 0;
nvalid = ntimestep+nfreq - (nrepeat-1)*nevery;
modify->addstep_compute(nvalid);
// unlock compute chunk/atom at end of Nfreq epoch
// do not unlock if ave = RUNNING or WINDOW
if (nrepeat > 1 && ave == ONE) cchunk->unlock(this);
// time average across samples
// if normflag = ALL, final is total value / total count
// exception is TEMPERATURE: normalize by DOF for total count
// exception is DENSITYs: normalize by repeat, not total count
// exception is scaleflag == NOSCALE: normalize by repeat, not total count
// check last so other options can take precedence
// if normflag = SAMPLE, final is sum of ave / repeat
double repeat = nrepeat;
double mv2d = force->mv2d;
if (normflag == ALL) {
MPI_Allreduce(count_many,count_sum,nchunk,MPI_DOUBLE,MPI_SUM,world);
MPI_Allreduce(&values_many[0][0],&values_sum[0][0],nchunk*nvalues,
MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nchunk; m++) {
if (count_sum[m] > 0.0)
for (j = 0; j < nvalues; j++) {
if (which[j] == TEMPERATURE)
values_sum[m][j] *= mvv2e / ((cdof + adof*count_sum[m]) * boltz);
else if (which[j] == DENSITY_MASS)
values_sum[m][j] *= mv2d/repeat;
else if (which[j] == DENSITY_NUMBER || scaleflag == NOSCALE)
values_sum[m][j] /= repeat;
else values_sum[m][j] /= count_sum[m];
}
count_sum[m] /= repeat;
}
} else if (normflag == SAMPLE) {
MPI_Allreduce(&values_many[0][0],&values_sum[0][0],nchunk*nvalues,
MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nchunk; m++) {
for (j = 0; j < nvalues; j++) values_sum[m][j] /= repeat;
count_sum[m] /= repeat;
}
}
// DENSITYs are additionally normalized by chunk volume
// only relevant if chunks are spatial bins
for (j = 0; j < nvalues; j++)
if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS) {
double chunk_volume = cchunk->chunk_volume_scalar;
for (m = 0; m < nchunk; m++)
values_sum[m][j] /= chunk_volume;
}
// if ave = ONE, only single Nfreq timestep value is needed
// if ave = RUNNING, combine with all previous Nfreq timestep values
// if ave = WINDOW, comine with nwindow most recent Nfreq timestep values
if (ave == ONE) {
for (m = 0; m < nchunk; m++) {
for (i = 0; i < nvalues; i++)
values_total[m][i] = values_sum[m][i];
count_total[m] = count_sum[m];
}
normcount = 1;
} else if (ave == RUNNING) {
for (m = 0; m < nchunk; m++) {
for (i = 0; i < nvalues; i++)
values_total[m][i] += values_sum[m][i];
count_total[m] += count_sum[m];
}
normcount++;
} else if (ave == WINDOW) {
for (m = 0; m < nchunk; m++) {
for (i = 0; i < nvalues; i++) {
values_total[m][i] += values_sum[m][i];
if (window_limit) values_total[m][i] -= values_list[iwindow][m][i];
values_list[iwindow][m][i] = values_sum[m][i];
}
count_total[m] += count_sum[m];
if (window_limit) count_total[m] -= count_list[iwindow][m];
count_list[iwindow][m] = count_sum[m];
}
iwindow++;
if (iwindow == nwindow) {
iwindow = 0;
window_limit = 1;
}
if (window_limit) normcount = nwindow;
else normcount = iwindow;
}
// output result to file
if (fp && me == 0) {
if (overwrite) fseek(fp,filepos,SEEK_SET);
double count = 0.0;
for (m = 0; m < nchunk; m++) count += count_total[m];
fprintf(fp,BIGINT_FORMAT " %d %g\n",ntimestep,nchunk,count);
int compress = cchunk->compress;
int *chunkID = cchunk->chunkID;
int ncoord = cchunk->ncoord;
double **coord = cchunk->coord;
if (!compress) {
if (ncoord == 0) {
for (m = 0; m < nchunk; m++) {
fprintf(fp," %d %g",m+1,count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
} else if (ncoord == 1) {
for (m = 0; m < nchunk; m++) {
fprintf(fp," %d %g %g",m+1,coord[m][0],
count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
} else if (ncoord == 2) {
for (m = 0; m < nchunk; m++) {
fprintf(fp," %d %g %g %g",m+1,coord[m][0],coord[m][1],
count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
} else if (ncoord == 3) {
for (m = 0; m < nchunk; m++) {
fprintf(fp," %d %g %g %g %g",m+1,
coord[m][0],coord[m][1],coord[m][2],count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
}
} else {
int j;
if (ncoord == 0) {
for (m = 0; m < nchunk; m++) {
fprintf(fp," %d %d %g",m+1,chunkID[m],count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
} else if (ncoord == 1) {
for (m = 0; m < nchunk; m++) {
j = chunkID[m];
fprintf(fp," %d %d %g %g",m+1,j,coord[j-1][0],
count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
} else if (ncoord == 2) {
for (m = 0; m < nchunk; m++) {
j = chunkID[m];
fprintf(fp," %d %d %g %g %g",m+1,j,coord[j-1][0],coord[j-1][1],
count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
} else if (ncoord == 3) {
for (m = 0; m < nchunk; m++) {
j = chunkID[m];
fprintf(fp," %d %d %g %g %g %g",m+1,j,coord[j-1][0],
coord[j-1][1],coord[j-1][2],count_total[m]/normcount);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/normcount);
fprintf(fp,"\n");
}
}
}
fflush(fp);
if (overwrite) {
long fileend = ftell(fp);
ftruncate(fileno(fp),fileend);
}
}
}
void FixAveSpatial::end_of_step()
{
int i,j,m,n;
// skip if not step which requires doing something
bigint ntimestep = update->ntimestep;
if (ntimestep != nvalid) return;
// zero out arrays that accumulate over many samples
// if box changes, first re-setup bins
if (irepeat == 0) {
if (domain->box_change) setup_bins();
for (m = 0; m < nbins; m++) {
count_many[m] = count_sum[m] = 0.0;
for (i = 0; i < nvalues; i++) values_many[m][i] = 0.0;
}
}
// zero out arrays for one sample
for (m = 0; m < nbins; m++) {
count_one[m] = 0.0;
for (i = 0; i < nvalues; i++) values_one[m][i] = 0.0;
}
// assign each atom to a bin
double **x = atom->x;
int *mask = atom->mask;
int nlocal = atom->nlocal;
if (nlocal > maxatom) {
maxatom = atom->nmax;
memory->destroy(bin);
memory->create(bin,maxatom,"ave/spatial:bin");
}
if (ndim == 1) atom2bin1d();
else if (ndim == 2) atom2bin2d();
else atom2bin3d();
// perform the computation for one sample
// accumulate results of attributes,computes,fixes,variables to local copy
// sum within each bin, only include atoms in fix group
// compute/fix/variable may invoke computes so wrap with clear/add
modify->clearstep_compute();
for (m = 0; m < nvalues; m++) {
n = value2index[m];
j = argindex[m];
// V,F adds velocities,forces to values
if (which[m] == V || which[m] == F) {
double **attribute;
if (which[m] == V) attribute = atom->v;
else attribute = atom->f;
if (regionflag == 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
values_one[bin[i]][m] += attribute[i][j];
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
values_one[bin[i]][m] += attribute[i][j];
}
// DENSITY_NUMBER adds 1 to values
} else if (which[m] == DENSITY_NUMBER) {
if (regionflag == 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
values_one[bin[i]][m] += 1.0;
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
values_one[bin[i]][m] += 1.0;
}
// DENSITY_MASS adds mass to values
} else if (which[m] == DENSITY_MASS) {
int *type = atom->type;
double *mass = atom->mass;
double *rmass = atom->rmass;
if (regionflag == 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) {
if (rmass) values_one[bin[i]][m] += rmass[i];
else values_one[bin[i]][m] += mass[type[i]];
}
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2])) {
if (rmass) values_one[bin[i]][m] += rmass[i];
else values_one[bin[i]][m] += mass[type[i]];
}
}
// COMPUTE adds its scalar or vector component to values
// invoke compute if not previously invoked
} else if (which[m] == COMPUTE) {
Compute *compute = modify->compute[n];
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
double *vector = compute->vector_atom;
double **array = compute->array_atom;
int jm1 = j - 1;
if (regionflag == 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) {
if (j == 0) values_one[bin[i]][m] += vector[i];
else values_one[bin[i]][m] += array[i][jm1];
}
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2])) {
if (j == 0) values_one[bin[i]][m] += vector[i];
else values_one[bin[i]][m] += array[i][jm1];
}
}
// FIX adds its scalar or vector component to values
// access fix fields, guaranteed to be ready
} else if (which[m] == FIX) {
double *vector = modify->fix[n]->vector_atom;
double **array = modify->fix[n]->array_atom;
int jm1 = j - 1;
if (regionflag == 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) {
if (j == 0) values_one[bin[i]][m] += vector[i];
else values_one[bin[i]][m] += array[i][jm1];
}
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2])) {
if (j == 0) values_one[bin[i]][m] += vector[i];
else values_one[bin[i]][m] += array[i][jm1];
}
}
// VARIABLE adds its per-atom quantities to values
// evaluate atom-style variable
} else if (which[m] == VARIABLE) {
if (nlocal > maxvar) {
maxvar = atom->nmax;
memory->destroy(varatom);
memory->create(varatom,maxvar,"ave/spatial:varatom");
}
input->variable->compute_atom(n,igroup,varatom,1,0);
if (regionflag == 0) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
values_one[bin[i]][m] += varatom[i];
} else {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit && region->match(x[i][0],x[i][1],x[i][2]))
values_one[bin[i]][m] += varatom[i];
}
}
}
// process a single sample
// if normflag = ALL, accumulate values,count separately to many
// if normflag = SAMPLE, one = value/count, accumulate one to many
// exception is SAMPLE density: no normalization by atom count
if (normflag == ALL) {
for (m = 0; m < nbins; m++) {
count_many[m] += count_one[m];
for (j = 0; j < nvalues; j++)
values_many[m][j] += values_one[m][j];
}
} else {
MPI_Allreduce(count_one,count_many,nbins,MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nbins; m++) {
if (count_many[m] > 0.0)
for (j = 0; j < nvalues; j++) {
if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS)
values_many[m][j] += values_one[m][j];
else values_many[m][j] += values_one[m][j]/count_many[m];
}
count_sum[m] += count_many[m];
}
}
// done if irepeat < nrepeat
// else reset irepeat and nvalid
irepeat++;
if (irepeat < nrepeat) {
nvalid += nevery;
modify->addstep_compute(nvalid);
return;
}
irepeat = 0;
nvalid = ntimestep+nfreq - (nrepeat-1)*nevery;
modify->addstep_compute(nvalid);
// time average across samples
// if normflag = ALL, final is total value / total count
// if normflag = SAMPLE, final is sum of ave / repeat
// exception is densities: normalized by repeat, not total count
double repeat = nrepeat;
double mv2d = force->mv2d;
if (normflag == ALL) {
MPI_Allreduce(count_many,count_sum,nbins,MPI_DOUBLE,MPI_SUM,world);
MPI_Allreduce(&values_many[0][0],&values_sum[0][0],nbins*nvalues,
MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nbins; m++) {
if (count_sum[m] > 0.0)
for (j = 0; j < nvalues; j++)
if (which[j] == DENSITY_NUMBER) values_sum[m][j] /= repeat;
else if (which[j] == DENSITY_MASS) values_sum[m][j] *= mv2d/repeat;
else values_sum[m][j] /= count_sum[m];
count_sum[m] /= repeat;
}
} else {
MPI_Allreduce(&values_many[0][0],&values_sum[0][0],nbins*nvalues,
MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nbins; m++) {
for (j = 0; j < nvalues; j++)
values_sum[m][j] /= repeat;
count_sum[m] /= repeat;
}
}
// density is additionally normalized by bin volume
for (j = 0; j < nvalues; j++)
if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS)
for (m = 0; m < nbins; m++)
values_sum[m][j] /= bin_volume;
// if ave = ONE, only single Nfreq timestep value is needed
// if ave = RUNNING, combine with all previous Nfreq timestep values
// if ave = WINDOW, comine with nwindow most recent Nfreq timestep values
if (ave == ONE) {
for (m = 0; m < nbins; m++) {
for (i = 0; i < nvalues; i++)
values_total[m][i] = values_sum[m][i];
count_total[m] = count_sum[m];
}
norm = 1;
} else if (ave == RUNNING) {
for (m = 0; m < nbins; m++) {
for (i = 0; i < nvalues; i++)
values_total[m][i] += values_sum[m][i];
count_total[m] += count_sum[m];
}
norm++;
} else if (ave == WINDOW) {
for (m = 0; m < nbins; m++) {
for (i = 0; i < nvalues; i++) {
values_total[m][i] += values_sum[m][i];
if (window_limit) values_total[m][i] -= values_list[iwindow][m][i];
values_list[iwindow][m][i] = values_sum[m][i];
}
count_total[m] += count_sum[m];
if (window_limit) count_total[m] -= count_list[iwindow][m];
count_list[iwindow][m] = count_sum[m];
}
iwindow++;
if (iwindow == nwindow) {
iwindow = 0;
window_limit = 1;
}
if (window_limit) norm = nwindow;
else norm = iwindow;
}
// output result to file
if (fp && me == 0) {
if (overwrite) fseek(fp,filepos,SEEK_SET);
if(write_ts_) fprintf(fp,BIGINT_FORMAT " %d\n",ntimestep,nbins);
if (ndim == 1)
for (m = 0; m < nbins; m++) {
fprintf(fp," %d %g %g",m+1,coord[m][0],
count_total[m]/norm);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/norm);
fprintf(fp,"\n");
}
else if (ndim == 2)
for (m = 0; m < nbins; m++) {
fprintf(fp," %d %g %g %g",m+1,coord[m][0],coord[m][1],
count_total[m]/norm);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/norm);
fprintf(fp,"\n");
}
else
for (m = 0; m < nbins; m++) {
fprintf(fp," %d %g %g %g %g",m+1,coord[m][0],coord[m][1],coord[m][2],
count_total[m]/norm);
for (i = 0; i < nvalues; i++)
fprintf(fp," %g",values_total[m][i]/norm);
fprintf(fp,"\n");
}
fflush(fp);
if (overwrite) {
long fileend = ftell(fp);
ftruncate(fileno(fp),fileend);
}
}
// calculate mean and standard deviation
if (calcStd != 0) {
int n_samples = 0;
int n_empty = 0;
int n_lower = 0;
int n_higher = 0;
double *true_mean, *samples_mean, *std;
double diff, count_sum, count_samples, samples_average, count_max;
memory->create(true_mean,nvalues,"ave/spatial:true_mean");
memory->create(samples_mean,nvalues,"ave/spatial:samples_mean");
memory->create(std,nvalues,"ave/spatial:std");
count_sum = 0;
count_samples = 0;
samples_average = 0;
count_max = 0;
for (i = 0; i < nvalues; i++) {
true_mean[i] = 0;
for (m = 0; m < nbins; m++) {
true_mean[i] += values_total[m][i] * count_total[m];
if (i == 0) count_sum += count_total[m];
}
if (count_sum != 0) true_mean[i] /= count_sum;
samples_mean[i] = 0;
std[i] = 0;
}
for (m = 0; m < nbins; m++) {
if (count_total[m] > count_max) count_max = count_total[m];
if (count_total[m] == 0) n_empty += 1;
else if (count_total[m] < lowerLimit) n_lower += 1;
else if (count_total[m] > upperLimit) n_higher += 1;
else {
n_samples += 1;
count_samples += count_total[m];
for (i = 0; i < nvalues; i++) {
samples_mean[i] += values_total[m][i];
diff = values_total[m][i] - true_mean[i];
std[i] += diff * diff;
}
}
}
if (n_samples != 0) {
for (i = 0; i < nvalues; i++) {
samples_average = count_samples / n_samples; // average # particles per sample
samples_mean[i] /= n_samples;
std[i] /= n_samples; // not(n_sample-1) since true_mean is the true Average
std[i] = sqrt(std[i]);
samples_mean[i] /= norm;
std[i] /= norm;
}
}
// output to file
if (fp2 && me == 0) {
fprintf(fp2,BIGINT_FORMAT " %g %d %g %d %d %d %d %g",
ntimestep,count_sum,nbins,count_max,n_empty,n_lower,n_higher,n_samples,samples_average);
for (i = 0; i < nvalues; i++) {
fprintf(fp2," %g %g %g",true_mean[i],samples_mean[i],std[i]); //;
}
fprintf(fp2,"\n");
fflush(fp2);
}
memory->destroy(true_mean);
memory->destroy(samples_mean);
memory->destroy(std);
}
}
void FixAveSpatial::end_of_step()
{
int i,j,m,n,ilayer;
double lo,hi;
// skip if not step which requires doing something
int ntimestep = update->ntimestep;
if (ntimestep != nvalid) return;
// if computing the first sample, setup layers
// compute current origin = boundary for some layer
// lo = layer boundary immediately below boxlo
// hi = layer boundary immediately above boxhi
// allocate and initialize arrays based on new layer count
if (irepeat == 0) {
double *boxlo,*boxhi,*prd;
if (scaleflag == REDUCED) {
boxlo = domain->boxlo_lamda;
boxhi = domain->boxhi_lamda;
prd = domain->prd_lamda;
} else {
boxlo = domain->boxlo;
boxhi = domain->boxhi;
prd = domain->prd;
}
if (originflag == LOWER) origin = boxlo[dim];
else if (originflag == UPPER) origin = boxhi[dim];
else if (originflag == CENTER) origin = 0.5 * (boxlo[dim] + boxhi[dim]);
if (origin < boxlo[dim]) {
m = static_cast<int> ((boxlo[dim] - origin) * invdelta);
lo = origin + m*delta;
} else {
m = static_cast<int> ((origin - boxlo[dim]) * invdelta);
lo = origin - m*delta;
if (lo > boxlo[dim]) lo -= delta;
}
if (origin < boxhi[dim]) {
m = static_cast<int> ((boxhi[dim] - origin) * invdelta);
hi = origin + m*delta;
if (hi < boxhi[dim]) hi += delta;
} else {
m = static_cast<int> ((origin - boxhi[dim]) * invdelta);
hi = origin - m*delta;
}
offset = lo;
nlayers = static_cast<int> ((hi-lo) * invdelta + 0.5);
double volume = domain->xprd * domain->yprd * domain->zprd;
layer_volume = delta * volume/prd[dim];
if (nlayers > maxlayer) {
maxlayer = nlayers;
coord = (double *) memory->srealloc(coord,nlayers*sizeof(double),
"ave/spatial:coord");
count_one = (double *)
memory->srealloc(count_one,nlayers*sizeof(double),
"ave/spatial:count_one");
count_many = (double *)
memory->srealloc(count_many,nlayers*sizeof(double),
"ave/spatial:count_many");
count_sum = (double *)
memory->srealloc(count_sum,nlayers*sizeof(double),
"ave/spatial:count_sum");
count_total = (double *)
memory->srealloc(count_total,nlayers*sizeof(double),
"ave/spatial:count_total");
values_one = memory->grow_2d_double_array(values_one,nlayers,nvalues,
"ave/spatial:values_one");
values_many = memory->grow_2d_double_array(values_many,nlayers,nvalues,
"ave/spatial:values_many");
values_sum = memory->grow_2d_double_array(values_sum,nlayers,nvalues,
"ave/spatial:values_sum");
values_total = memory->grow_2d_double_array(values_total,nlayers,nvalues,
"ave/spatial:values_total");
// initialize count and values total to zero since they accumulate
for (m = 0; m < nlayers; m++) {
for (i = 0; i < nvalues; i++) values_total[m][i] = 0.0;
count_total[m] = 0.0;
}
// only allocate count and values list for ave = WINDOW
// only happens once since nlayers never changes for these ave settings
if (ave == WINDOW) {
count_list =
memory->create_2d_double_array(nwindow,nlayers,
"ave/spatial:count_list");
values_list =
memory->create_3d_double_array(nwindow,nlayers,nvalues,
"ave/spatial:values_list");
}
}
for (m = 0; m < nlayers; m++) {
coord[m] = offset + (m+0.5)*delta;
count_many[m] = count_sum[m] = 0.0;
for (i = 0; i < nvalues; i++) values_many[m][i] = 0.0;
}
}
// zero out arrays for one sample
for (m = 0; m < nlayers; m++) {
count_one[m] = 0.0;
for (i = 0; i < nvalues; i++) values_one[m][i] = 0.0;
}
// assign each atom to a layer
// remap each atom's relevant coord back into box via PBC if necessary
// if scaleflag = REDUCED, box coords -> lamda coords
double **x = atom->x;
int *mask = atom->mask;
int nlocal = atom->nlocal;
if (nlocal > maxatomlayer) {
maxatomlayer = atom->nmax;
memory->sfree(layer);
layer = (int *)
memory->smalloc(maxatomlayer*sizeof(int),"ave/spatial:layer");
}
double *boxlo,*boxhi,*prd;
double xremap;
int periodicity = domain->periodicity[dim];
if (periodicity) {
if (scaleflag == REDUCED) {
boxlo = domain->boxlo_lamda;
boxhi = domain->boxhi_lamda;
prd = domain->prd_lamda;
} else {
boxlo = domain->boxlo;
boxhi = domain->boxhi;
prd = domain->prd;
}
}
if (scaleflag == REDUCED) domain->x2lamda(nlocal);
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) {
xremap = x[i][dim];
if (periodicity) {
if (xremap < boxlo[dim]) xremap += prd[dim];
if (xremap >= boxhi[dim]) xremap -= prd[dim];
}
ilayer = static_cast<int> ((xremap - offset) * invdelta);
if (ilayer < 0) ilayer = 0;
if (ilayer >= nlayers) ilayer = nlayers-1;
layer[i] = ilayer;
count_one[ilayer] += 1.0;
}
if (scaleflag == REDUCED) domain->lamda2x(nlocal);
// perform the computation for one sample
// accumulate results of attributes,computes,fixes,variables to local copy
// sum within each layer, only include atoms in fix group
// compute/fix/variable may invoke computes so wrap with clear/add
modify->clearstep_compute();
for (m = 0; m < nvalues; m++) {
n = value2index[m];
j = argindex[m];
// X,V,F adds coords,velocities,forces to values
if (which[m] == X || which[m] == V || which[m] == F) {
double **attribute;
if (which[m] == X) attribute = x;
else if (which[m] == V) attribute = atom->v;
else attribute = atom->f;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
values_one[layer[i]][m] += attribute[i][j];
// DENSITY_NUMBER adds 1 to values
} else if (which[m] == DENSITY_NUMBER) {
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
values_one[layer[i]][m] += 1.0;
// DENSITY_MASS adds mass to values
} else if (which[m] == DENSITY_MASS) {
int *type = atom->type;
double *mass = atom->mass;
double *rmass = atom->rmass;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
if (rmass) values_one[layer[i]][m] += rmass[i];
else values_one[layer[i]][m] += mass[type[i]];
// COMPUTE adds its scalar or vector component to values
// invoke compute if not previously invoked
} else if (which[m] == COMPUTE) {
Compute *compute = modify->compute[n];
if (!(compute->invoked_flag & INVOKED_PERATOM)) {
compute->compute_peratom();
compute->invoked_flag |= INVOKED_PERATOM;
}
double *vector = compute->vector_atom;
double **array = compute->array_atom;
int jm1 = j - 1;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
if (j == 0) values_one[layer[i]][m] += vector[i];
else values_one[layer[i]][m] += array[i][jm1];
// FIX adds its scalar or vector component to values
// access fix fields, guaranteed to be ready
} else if (which[m] == FIX) {
double *vector = modify->fix[n]->vector_atom;
double **array = modify->fix[n]->array_atom;
int jm1 = j - 1;
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit) {
if (j == 0) values_one[layer[i]][m] += vector[i];
else values_one[layer[i]][m] += array[i][jm1];
}
// VARIABLE adds its per-atom quantities to values
// evaluate atom-style variable
} else if (which[m] == VARIABLE) {
if (nlocal > maxatomvar) {
maxatomvar = atom->nmax;
memory->sfree(varatom);
varatom = (double *)
memory->smalloc(maxatomvar*sizeof(double),"ave/spatial:varatom");
}
input->variable->compute_atom(n,igroup,varatom,1,0);
for (i = 0; i < nlocal; i++)
if (mask[i] & groupbit)
values_one[layer[i]][m] += varatom[i];
}
}
// process a single sample
// if normflag = ALL, accumulate values,count separately to many
// if normflag = SAMPLE, one = value/count, accumulate one to many
// exception is SAMPLE density: no normalization by atom count
if (normflag == ALL) {
for (m = 0; m < nlayers; m++) {
count_many[m] += count_one[m];
for (j = 0; j < nvalues; j++)
values_many[m][j] += values_one[m][j];
}
} else {
MPI_Allreduce(count_one,count_many,nlayers,MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nlayers; m++) {
if (count_many[m] > 0.0)
for (j = 0; j < nvalues; j++) {
if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS)
values_many[m][j] += values_one[m][j];
else values_many[m][j] += values_one[m][j]/count_many[m];
}
count_sum[m] += count_many[m];
}
}
// done if irepeat < nrepeat
// else reset irepeat and nvalid
irepeat++;
if (irepeat < nrepeat) {
nvalid += nevery;
modify->addstep_compute(nvalid);
return;
}
irepeat = 0;
nvalid = ntimestep+nfreq - (nrepeat-1)*nevery;
modify->addstep_compute(nvalid);
// time average across samples
// if normflag = ALL, final is total value / total count
// if normflag = SAMPLE, final is sum of ave / repeat
// exception is ALL density: normalized by repeat, not total count
double repeat = nrepeat;
if (normflag == ALL) {
MPI_Allreduce(count_many,count_sum,nlayers,MPI_DOUBLE,MPI_SUM,world);
MPI_Allreduce(&values_many[0][0],&values_sum[0][0],nlayers*nvalues,
MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nlayers; m++) {
if (count_sum[m] > 0.0)
for (j = 0; j < nvalues; j++)
if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS)
values_sum[m][j] /= repeat;
else values_sum[m][j] /= count_sum[m];
count_sum[m] /= repeat;
}
} else {
MPI_Allreduce(&values_many[0][0],&values_sum[0][0],nlayers*nvalues,
MPI_DOUBLE,MPI_SUM,world);
for (m = 0; m < nlayers; m++) {
for (j = 0; j < nvalues; j++)
values_sum[m][j] /= repeat;
count_sum[m] /= repeat;
}
}
// density is additionally normalized by layer volume
for (j = 0; j < nvalues; j++)
if (which[j] == DENSITY_NUMBER || which[j] == DENSITY_MASS)
for (m = 0; m < nlayers; m++)
values_sum[m][j] /= layer_volume;
// if ave = ONE, only single Nfreq timestep value is needed
// if ave = RUNNING, combine with all previous Nfreq timestep values
// if ave = WINDOW, comine with nwindow most recent Nfreq timestep values
if (ave == ONE) {
for (m = 0; m < nlayers; m++) {
for (i = 0; i < nvalues; i++)
values_total[m][i] = values_sum[m][i];
count_total[m] = count_sum[m];
}
norm = 1;
} else if (ave == RUNNING) {
for (m = 0; m < nlayers; m++) {
for (i = 0; i < nvalues; i++)
values_total[m][i] += values_sum[m][i];
count_total[m] += count_sum[m];
}
norm++;
} else if (ave == WINDOW) {
for (m = 0; m < nlayers; m++) {
for (i = 0; i < nvalues; i++) {
values_total[m][i] += values_sum[m][i];
if (window_limit) values_total[m][i] -= values_list[iwindow][m][i];
values_list[iwindow][m][i] = values_sum[m][i];
}
count_total[m] += count_sum[m];
if (window_limit) count_total[m] -= count_list[iwindow][m];
count_list[iwindow][m] = count_sum[m];
}
iwindow++;
if (iwindow == nwindow) {
iwindow = 0;
window_limit = 1;
}
if (window_limit) norm = nwindow;
else norm = iwindow;
}
// output result to file
if (fp && me == 0) {
fprintf(fp,"%d %d\n",ntimestep,nlayers);
for (m = 0; m < nlayers; m++) {
fprintf(fp," %d %g %g",m+1,coord[m],count_total[m]/norm);
for (i = 0; i < nvalues; i++) fprintf(fp," %g",values_total[m][i]/norm);
fprintf(fp,"\n");
}
fflush(fp);
}
}
/*
Added for mdhandle.
Alternative to lammps_extract_compute() which returns a copy of data
rather than a pointer to integrate with mdhandle. Approach is akin to
lammps_get_coords()
Added additional types to specifically handle vectors, tensors and symmetric
tensors.
Deleted style 0 (globals) and style 2 (locals) from lammps_extract_compute()
See lammps_extract_compute() for more information
*/
void *lammps_lazy_extract_compute(void *ptr, double *comp, char *id,
int style, int type)
{
LAMMPS *lmp = (LAMMPS *) ptr;
int icompute = lmp->modify->find_compute(id);
if (icompute < 0) return NULL;
Compute *compute = lmp->modify->compute[icompute];
// if (lmp->atom->tag_enable == 0 || lmp->atom->tag_consecutive() == 0) return;
int natoms = static_cast<int> (lmp->atom->natoms);
// Deleted style == 0 for global data
if (style == 1) {
if (!compute->peratom_flag) return NULL;
if (type == 0) {
if (compute->invoked_peratom != lmp->update->ntimestep)
compute->compute_peratom();
double *copy = new double[natoms];
for (int i = 0; i < natoms; i++) copy[i] = 0.0;
double *x = compute->vector_atom;
int *tag = lmp->atom->tag;
int nlocal = lmp->atom->nlocal;
int id,offset;
for (int i = 0; i < nlocal; i++) {
id = tag[i];
offset = id-1;
copy[offset] = x[i];
}
MPI_Allreduce(copy,comp,natoms,MPI_DOUBLE,MPI_SUM,lmp->world);
delete [] copy;
} // end type 0
// Vectors
if (type == 1) {
if (compute->invoked_peratom != lmp->update->ntimestep)
compute->compute_peratom();
double *copy = new double[3*natoms];
for (int i = 0; i < 3*natoms; i++) copy[i] = 0.0;
double **x = compute->array_atom;
int *tag = lmp->atom->tag;
int nlocal = lmp->atom->nlocal;
int id,offset;
for (int i = 0; i < nlocal; i++) {
id = tag[i];
offset = 3*(id-1);
copy[offset+0] = x[i][0];
copy[offset+1] = x[i][1];
copy[offset+2] = x[i][2];
}
MPI_Allreduce(copy,comp,3*natoms,MPI_DOUBLE,MPI_SUM,lmp->world);
delete [] copy;
} // end type 1
// Tensors
if (type == 2) {
if (compute->invoked_peratom != lmp->update->ntimestep)
compute->compute_peratom();
double *copy = new double[9*natoms];
for (int i = 0; i < 9*natoms; i++) copy[i] = 0.0;
double **x = compute->array_atom;
int *tag = lmp->atom->tag;
int nlocal = lmp->atom->nlocal;
int id,offset;
for (int i = 0; i < nlocal; i++) {
id = tag[i];
offset = 9*(id-1);
copy[offset+0] = x[i][0];
copy[offset+1] = x[i][1];
copy[offset+2] = x[i][2];
copy[offset+3] = x[i][3];
copy[offset+4] = x[i][4];
copy[offset+5] = x[i][5];
copy[offset+6] = x[i][6];
copy[offset+7] = x[i][7];
copy[offset+8] = x[i][8];
}
MPI_Allreduce(copy,comp,8*natoms,MPI_DOUBLE,MPI_SUM,lmp->world);
delete [] copy;
} // end type 2
// Symmetric tensors
if (type == 3) {
if (compute->invoked_peratom != lmp->update->ntimestep)
compute->compute_peratom();
double *copy = new double[6*natoms];
for (int i = 0; i < 6*natoms; i++) copy[i] = 0.0;
double **x = compute->array_atom;
int *tag = lmp->atom->tag;
int nlocal = lmp->atom->nlocal;
int id,offset;
for (int i = 0; i < nlocal; i++) {
id = tag[i];
offset = 6*(id-1);
copy[offset+0] = x[i][0];
copy[offset+1] = x[i][1];
copy[offset+2] = x[i][2];
copy[offset+3] = x[i][3];
copy[offset+4] = x[i][4];
copy[offset+5] = x[i][5];
}
MPI_Allreduce(copy,comp,6*natoms,MPI_DOUBLE,MPI_SUM,lmp->world);
delete [] copy;
} // end type 3
} // end style 1
// Deleted style == 2 for local data
return NULL;
}
