121 lines
4.0 KiB
C++
121 lines
4.0 KiB
C++
// clang-format off
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/* ----------------------------------------------------------------------
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LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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https://www.lammps.org/, Sandia National Laboratories
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Steve Plimpton, sjplimp@sandia.gov
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Copyright (2003) Sandia Corporation. Under the terms of Contract
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DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
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certain rights in this software. This software is distributed under
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the GNU General Public License.
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See the README file in the top-level LAMMPS directory.
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------------------------------------------------------------------------- */
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#include "ntopo_dihedral_template.h"
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#include "atom.h"
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#include "atom_vec.h"
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#include "force.h"
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#include "domain.h"
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#include "update.h"
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#include "output.h"
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#include "thermo.h"
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#include "molecule.h"
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#include "memory.h"
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#include "error.h"
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using namespace LAMMPS_NS;
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#define DELTA 10000
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/* ---------------------------------------------------------------------- */
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NTopoDihedralTemplate::NTopoDihedralTemplate(LAMMPS *lmp) :
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NTopo(lmp)
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{
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allocate_dihedral();
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}
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/* ---------------------------------------------------------------------- */
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void NTopoDihedralTemplate::build()
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{
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int i,m,atom1,atom2,atom3,atom4;
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int imol,iatom;
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tagint tagprev;
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int *num_dihedral;
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tagint **dihedral_atom1,**dihedral_atom2,**dihedral_atom3,**dihedral_atom4;
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int **dihedral_type;
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Molecule **onemols = atom->avec->onemols;
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tagint *tag = atom->tag;
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int *molindex = atom->molindex;
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int *molatom = atom->molatom;
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int nlocal = atom->nlocal;
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int newton_bond = force->newton_bond;
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int lostbond = output->thermo->lostbond;
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int nmissing = 0;
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ndihedrallist = 0;
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for (i = 0; i < nlocal; i++) {
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if (molindex[i] < 0) continue;
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imol = molindex[i];
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iatom = molatom[i];
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tagprev = tag[i] - iatom - 1;
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num_dihedral = onemols[imol]->num_dihedral;
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dihedral_atom1 = onemols[imol]->dihedral_atom1;
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dihedral_atom2 = onemols[imol]->dihedral_atom2;
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dihedral_atom3 = onemols[imol]->dihedral_atom3;
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dihedral_atom4 = onemols[imol]->dihedral_atom4;
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dihedral_type = onemols[imol]->dihedral_type;
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for (m = 0; m < num_dihedral[iatom]; m++) {
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atom1 = atom->map(dihedral_atom1[iatom][m]+tagprev);
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atom2 = atom->map(dihedral_atom2[iatom][m]+tagprev);
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atom3 = atom->map(dihedral_atom3[iatom][m]+tagprev);
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atom4 = atom->map(dihedral_atom4[iatom][m]+tagprev);
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if (atom1 == -1 || atom2 == -1 || atom3 == -1 || atom4 == -1) {
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nmissing++;
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if (lostbond == Thermo::ERROR)
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error->one(FLERR,"Dihedral atoms {} {} {} {} missing on "
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"proc {} at step {}",
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dihedral_atom1[iatom][m]+tagprev,
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dihedral_atom2[iatom][m]+tagprev,
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dihedral_atom3[iatom][m]+tagprev,
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dihedral_atom4[iatom][m]+tagprev,
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me,update->ntimestep);
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continue;
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}
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atom1 = domain->closest_image(i,atom1);
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atom2 = domain->closest_image(i,atom2);
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atom3 = domain->closest_image(i,atom3);
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atom4 = domain->closest_image(i,atom4);
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if (newton_bond ||
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(i <= atom1 && i <= atom2 && i <= atom3 && i <= atom4)) {
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if (ndihedrallist == maxdihedral) {
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maxdihedral += DELTA;
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memory->grow(dihedrallist,maxdihedral,5,"neigh_topo:dihedrallist");
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}
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dihedrallist[ndihedrallist][0] = atom1;
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dihedrallist[ndihedrallist][1] = atom2;
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dihedrallist[ndihedrallist][2] = atom3;
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dihedrallist[ndihedrallist][3] = atom4;
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dihedrallist[ndihedrallist][4] = dihedral_type[iatom][m];
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ndihedrallist++;
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}
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}
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}
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if (cluster_check) dihedral_check(ndihedrallist,dihedrallist);
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if (lostbond == Thermo::IGNORE) return;
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int all;
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MPI_Allreduce(&nmissing,&all,1,MPI_INT,MPI_SUM,world);
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if (all && (me == 0))
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error->warning(FLERR,"Dihedral atoms missing at step {}",update->ntimestep);
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}
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