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39 #include "mtop_util.h"
47 #include "gromacs/math/vectypes.h"
48 #include "gromacs/topology/atoms.h"
49 #include "gromacs/topology/block.h"
50 #include "gromacs/topology/exclusionblocks.h"
51 #include "gromacs/topology/idef.h"
52 #include "gromacs/topology/ifunc.h"
53 #include "gromacs/topology/topology.h"
54 #include "gromacs/topology/topsort.h"
55 #include "gromacs/utility/arrayref.h"
56 #include "gromacs/utility/fatalerror.h"
57 #include "gromacs/utility/real.h"
58 #include "gromacs/utility/smalloc.h"
60 static int gmx_mtop_maxresnr(const gmx_mtop_t* mtop, int maxres_renum)
64 for (const gmx_moltype_t& moltype : mtop->moltype)
66 const t_atoms& atoms = moltype.atoms;
67 if (atoms.nres > maxres_renum)
69 for (int r = 0; r < atoms.nres; r++)
71 if (atoms.resinfo[r].nr > maxresnr)
73 maxresnr = atoms.resinfo[r].nr;
82 static void buildMolblockIndices(gmx_mtop_t* mtop)
84 mtop->moleculeBlockIndices.resize(mtop->molblock.size());
88 int residueNumberStart = mtop->maxresnr + 1;
89 int moleculeIndexStart = 0;
90 for (size_t mb = 0; mb < mtop->molblock.size(); mb++)
92 const gmx_molblock_t& molb = mtop->molblock[mb];
93 MoleculeBlockIndices& indices = mtop->moleculeBlockIndices[mb];
94 const int numResPerMol = mtop->moltype[molb.type].atoms.nres;
96 indices.numAtomsPerMolecule = mtop->moltype[molb.type].atoms.nr;
97 indices.globalAtomStart = atomIndex;
98 indices.globalResidueStart = residueIndex;
99 atomIndex += molb.nmol * indices.numAtomsPerMolecule;
100 residueIndex += molb.nmol * numResPerMol;
101 indices.globalAtomEnd = atomIndex;
102 indices.residueNumberStart = residueNumberStart;
103 if (numResPerMol <= mtop->maxres_renum)
105 residueNumberStart += molb.nmol * numResPerMol;
107 indices.moleculeIndexStart = moleculeIndexStart;
108 moleculeIndexStart += molb.nmol;
112 void gmx_mtop_finalize(gmx_mtop_t* mtop)
116 if (mtop->molblock.size() == 1 && mtop->molblock[0].nmol == 1)
118 /* We have a single molecule only, no renumbering needed.
119 * This case also covers an mtop converted from pdb/gro/... input,
120 * so we retain the original residue numbering.
122 mtop->maxres_renum = 0;
126 /* We only renumber single residue molecules. Their intra-molecular
127 * residue numbering is anyhow irrelevant.
129 mtop->maxres_renum = 1;
132 env = getenv("GMX_MAXRESRENUM");
135 sscanf(env, "%d", &mtop->maxres_renum);
137 if (mtop->maxres_renum == -1)
139 /* -1 signals renumber residues in all molecules */
140 mtop->maxres_renum = INT_MAX;
143 mtop->maxresnr = gmx_mtop_maxresnr(mtop, mtop->maxres_renum);
145 buildMolblockIndices(mtop);
148 void gmx_mtop_count_atomtypes(const gmx_mtop_t* mtop, int state, int typecount[])
150 for (int i = 0; i < mtop->ffparams.atnr; ++i)
154 for (const gmx_molblock_t& molb : mtop->molblock)
156 const t_atoms& atoms = mtop->moltype[molb.type].atoms;
157 for (int i = 0; i < atoms.nr; ++i)
162 tpi = atoms.atom[i].type;
166 tpi = atoms.atom[i].typeB;
168 typecount[tpi] += molb.nmol;
173 int gmx_mtop_num_molecules(const gmx_mtop_t& mtop)
175 int numMolecules = 0;
176 for (const gmx_molblock_t& molb : mtop.molblock)
178 numMolecules += molb.nmol;
183 int gmx_mtop_nres(const gmx_mtop_t* mtop)
186 for (const gmx_molblock_t& molb : mtop->molblock)
188 nres += molb.nmol * mtop->moltype[molb.type].atoms.nres;
193 AtomIterator::AtomIterator(const gmx_mtop_t& mtop, int globalAtomNumber) :
196 atoms_(&mtop.moltype[mtop.molblock[0].type].atoms),
198 highestResidueNumber_(mtop.maxresnr),
200 globalAtomNumber_(globalAtomNumber)
202 GMX_ASSERT(globalAtomNumber == 0 || globalAtomNumber == mtop.natoms,
203 "Starting at other atoms not implemented yet");
206 AtomIterator& AtomIterator::operator++()
211 if (localAtomNumber_ >= atoms_->nr)
213 if (atoms_->nres <= mtop_->maxresnr)
215 /* Single residue molecule, increase the count with one */
216 highestResidueNumber_ += atoms_->nres;
219 localAtomNumber_ = 0;
220 if (currentMolecule_ >= mtop_->molblock[mblock_].nmol)
223 if (mblock_ >= mtop_->molblock.size())
227 atoms_ = &mtop_->moltype[mtop_->molblock[mblock_].type].atoms;
228 currentMolecule_ = 0;
234 AtomIterator AtomIterator::operator++(int)
236 AtomIterator temp = *this;
241 bool AtomIterator::operator==(const AtomIterator& o) const
243 return mtop_ == o.mtop_ && globalAtomNumber_ == o.globalAtomNumber_;
246 bool AtomIterator::operator!=(const AtomIterator& o) const
248 return !(*this == o);
251 const t_atom& AtomProxy::atom() const
253 return it_->atoms_->atom[it_->localAtomNumber_];
256 int AtomProxy::globalAtomNumber() const
258 return it_->globalAtomNumber_;
261 const char* AtomProxy::atomName() const
263 return *(it_->atoms_->atomname[it_->localAtomNumber_]);
266 const char* AtomProxy::residueName() const
268 int residueIndexInMolecule = it_->atoms_->atom[it_->localAtomNumber_].resind;
269 return *(it_->atoms_->resinfo[residueIndexInMolecule].name);
272 int AtomProxy::residueNumber() const
274 int residueIndexInMolecule = it_->atoms_->atom[it_->localAtomNumber_].resind;
275 if (it_->atoms_->nres <= it_->mtop_->maxres_renum)
277 return it_->highestResidueNumber_ + 1 + residueIndexInMolecule;
281 return it_->atoms_->resinfo[residueIndexInMolecule].nr;
285 const gmx_moltype_t& AtomProxy::moleculeType() const
287 return it_->mtop_->moltype[it_->mtop_->molblock[it_->mblock_].type];
290 int AtomProxy::atomNumberInMol() const
292 return it_->localAtomNumber_;
295 typedef struct gmx_mtop_atomloop_block
297 const gmx_mtop_t* mtop;
299 const t_atoms* atoms;
301 } t_gmx_mtop_atomloop_block;
303 gmx_mtop_atomloop_block_t gmx_mtop_atomloop_block_init(const gmx_mtop_t* mtop)
305 struct gmx_mtop_atomloop_block* aloop;
311 aloop->atoms = &mtop->moltype[mtop->molblock[aloop->mblock].type].atoms;
312 aloop->at_local = -1;
317 static void gmx_mtop_atomloop_block_destroy(gmx_mtop_atomloop_block_t aloop)
322 gmx_bool gmx_mtop_atomloop_block_next(gmx_mtop_atomloop_block_t aloop, const t_atom** atom, int* nmol)
324 if (aloop == nullptr)
326 gmx_incons("gmx_mtop_atomloop_all_next called without calling gmx_mtop_atomloop_all_init");
331 if (aloop->at_local >= aloop->atoms->nr)
334 if (aloop->mblock >= aloop->mtop->molblock.size())
336 gmx_mtop_atomloop_block_destroy(aloop);
339 aloop->atoms = &aloop->mtop->moltype[aloop->mtop->molblock[aloop->mblock].type].atoms;
343 *atom = &aloop->atoms->atom[aloop->at_local];
344 *nmol = aloop->mtop->molblock[aloop->mblock].nmol;
349 typedef struct gmx_mtop_ilistloop
351 const gmx_mtop_t* mtop;
355 gmx_mtop_ilistloop_t gmx_mtop_ilistloop_init(const gmx_mtop_t* mtop)
357 struct gmx_mtop_ilistloop* iloop;
367 gmx_mtop_ilistloop_t gmx_mtop_ilistloop_init(const gmx_mtop_t& mtop)
369 return gmx_mtop_ilistloop_init(&mtop);
372 static void gmx_mtop_ilistloop_destroy(gmx_mtop_ilistloop_t iloop)
377 const InteractionLists* gmx_mtop_ilistloop_next(gmx_mtop_ilistloop_t iloop, int* nmol)
379 if (iloop == nullptr)
381 gmx_incons("gmx_mtop_ilistloop_next called without calling gmx_mtop_ilistloop_init");
385 if (iloop->mblock >= gmx::ssize(iloop->mtop->molblock))
387 if (iloop->mblock == gmx::ssize(iloop->mtop->molblock) && iloop->mtop->bIntermolecularInteractions)
390 return iloop->mtop->intermolecular_ilist.get();
393 gmx_mtop_ilistloop_destroy(iloop);
397 *nmol = iloop->mtop->molblock[iloop->mblock].nmol;
399 return &iloop->mtop->moltype[iloop->mtop->molblock[iloop->mblock].type].ilist;
401 typedef struct gmx_mtop_ilistloop_all
403 const gmx_mtop_t* mtop;
407 } t_gmx_mtop_ilist_all;
409 gmx_mtop_ilistloop_all_t gmx_mtop_ilistloop_all_init(const gmx_mtop_t* mtop)
411 struct gmx_mtop_ilistloop_all* iloop;
423 static void gmx_mtop_ilistloop_all_destroy(gmx_mtop_ilistloop_all_t iloop)
428 const InteractionLists* gmx_mtop_ilistloop_all_next(gmx_mtop_ilistloop_all_t iloop, int* atnr_offset)
431 if (iloop == nullptr)
434 "gmx_mtop_ilistloop_all_next called without calling gmx_mtop_ilistloop_all_init");
439 iloop->a_offset += iloop->mtop->moleculeBlockIndices[iloop->mblock].numAtomsPerMolecule;
444 /* Inter-molecular interactions, if present, are indexed with
445 * iloop->mblock == iloop->mtop->nmolblock, thus we should separately
446 * check for this value in this conditional.
448 if (iloop->mblock == iloop->mtop->molblock.size()
449 || iloop->mol >= iloop->mtop->molblock[iloop->mblock].nmol)
453 if (iloop->mblock >= iloop->mtop->molblock.size())
455 if (iloop->mblock == iloop->mtop->molblock.size() && iloop->mtop->bIntermolecularInteractions)
458 return iloop->mtop->intermolecular_ilist.get();
461 gmx_mtop_ilistloop_all_destroy(iloop);
466 *atnr_offset = iloop->a_offset;
468 return &iloop->mtop->moltype[iloop->mtop->molblock[iloop->mblock].type].ilist;
471 int gmx_mtop_ftype_count(const gmx_mtop_t* mtop, int ftype)
473 gmx_mtop_ilistloop_t iloop;
478 iloop = gmx_mtop_ilistloop_init(mtop);
479 while (const InteractionLists* il = gmx_mtop_ilistloop_next(iloop, &nmol))
481 n += nmol * (*il)[ftype].size() / (1 + NRAL(ftype));
484 if (mtop->bIntermolecularInteractions)
486 n += (*mtop->intermolecular_ilist)[ftype].size() / (1 + NRAL(ftype));
492 int gmx_mtop_ftype_count(const gmx_mtop_t& mtop, int ftype)
494 return gmx_mtop_ftype_count(&mtop, ftype);
497 int gmx_mtop_interaction_count(const gmx_mtop_t& mtop, const int unsigned if_flags)
501 gmx_mtop_ilistloop_t iloop = gmx_mtop_ilistloop_init(mtop);
503 while (const InteractionLists* il = gmx_mtop_ilistloop_next(iloop, &nmol))
505 for (int ftype = 0; ftype < F_NRE; ftype++)
507 if ((interaction_function[ftype].flags & if_flags) == if_flags)
509 n += nmol * (*il)[ftype].size() / (1 + NRAL(ftype));
514 if (mtop.bIntermolecularInteractions)
516 for (int ftype = 0; ftype < F_NRE; ftype++)
518 if ((interaction_function[ftype].flags & if_flags) == if_flags)
520 n += (*mtop.intermolecular_ilist)[ftype].size() / (1 + NRAL(ftype));
528 std::array<int, eptNR> gmx_mtop_particletype_count(const gmx_mtop_t& mtop)
530 std::array<int, eptNR> count = { { 0 } };
532 for (const auto& molblock : mtop.molblock)
534 const t_atoms& atoms = mtop.moltype[molblock.type].atoms;
535 for (int a = 0; a < atoms.nr; a++)
537 count[atoms.atom[a].ptype] += molblock.nmol;
544 static void atomcat(t_atoms* dest, const t_atoms* src, int copies, int maxres_renum, int* maxresnr)
548 int destnr = dest->nr;
552 dest->haveMass = src->haveMass;
553 dest->haveType = src->haveType;
554 dest->haveCharge = src->haveCharge;
555 dest->haveBState = src->haveBState;
556 dest->havePdbInfo = src->havePdbInfo;
560 dest->haveMass = dest->haveMass && src->haveMass;
561 dest->haveType = dest->haveType && src->haveType;
562 dest->haveCharge = dest->haveCharge && src->haveCharge;
563 dest->haveBState = dest->haveBState && src->haveBState;
564 dest->havePdbInfo = dest->havePdbInfo && src->havePdbInfo;
569 size = destnr + copies * srcnr;
570 srenew(dest->atom, size);
571 srenew(dest->atomname, size);
574 srenew(dest->atomtype, size);
575 if (dest->haveBState)
577 srenew(dest->atomtypeB, size);
580 if (dest->havePdbInfo)
582 srenew(dest->pdbinfo, size);
587 size = dest->nres + copies * src->nres;
588 srenew(dest->resinfo, size);
591 /* residue information */
592 for (l = dest->nres, j = 0; (j < copies); j++, l += src->nres)
594 memcpy(reinterpret_cast<char*>(&(dest->resinfo[l])), reinterpret_cast<char*>(&(src->resinfo[0])),
595 static_cast<size_t>(src->nres * sizeof(src->resinfo[0])));
598 for (l = destnr, j = 0; (j < copies); j++, l += srcnr)
600 memcpy(reinterpret_cast<char*>(&(dest->atom[l])), reinterpret_cast<char*>(&(src->atom[0])),
601 static_cast<size_t>(srcnr * sizeof(src->atom[0])));
602 memcpy(reinterpret_cast<char*>(&(dest->atomname[l])),
603 reinterpret_cast<char*>(&(src->atomname[0])),
604 static_cast<size_t>(srcnr * sizeof(src->atomname[0])));
607 memcpy(reinterpret_cast<char*>(&(dest->atomtype[l])),
608 reinterpret_cast<char*>(&(src->atomtype[0])),
609 static_cast<size_t>(srcnr * sizeof(src->atomtype[0])));
610 if (dest->haveBState)
612 memcpy(reinterpret_cast<char*>(&(dest->atomtypeB[l])),
613 reinterpret_cast<char*>(&(src->atomtypeB[0])),
614 static_cast<size_t>(srcnr * sizeof(src->atomtypeB[0])));
617 if (dest->havePdbInfo)
619 memcpy(reinterpret_cast<char*>(&(dest->pdbinfo[l])),
620 reinterpret_cast<char*>(&(src->pdbinfo[0])),
621 static_cast<size_t>(srcnr * sizeof(src->pdbinfo[0])));
625 /* Increment residue indices */
626 for (l = destnr, j = 0; (j < copies); j++)
628 for (i = 0; (i < srcnr); i++, l++)
630 dest->atom[l].resind = dest->nres + j * src->nres + src->atom[i].resind;
634 if (src->nres <= maxres_renum)
636 /* Single residue molecule, continue counting residues */
637 for (j = 0; (j < copies); j++)
639 for (l = 0; l < src->nres; l++)
642 dest->resinfo[dest->nres + j * src->nres + l].nr = *maxresnr;
647 dest->nres += copies * src->nres;
648 dest->nr += copies * src->nr;
651 t_atoms gmx_mtop_global_atoms(const gmx_mtop_t* mtop)
655 init_t_atoms(&atoms, 0, FALSE);
657 int maxresnr = mtop->maxresnr;
658 for (const gmx_molblock_t& molb : mtop->molblock)
660 atomcat(&atoms, &mtop->moltype[molb.type].atoms, molb.nmol, mtop->maxres_renum, &maxresnr);
667 * The cat routines below are old code from src/kernel/topcat.c
670 static void ilistcat(int ftype, t_ilist* dest, const InteractionList& src, int copies, int dnum, int snum)
676 dest->nalloc = dest->nr + copies * src.size();
677 srenew(dest->iatoms, dest->nalloc);
679 for (c = 0; c < copies; c++)
681 for (i = 0; i < src.size();)
683 dest->iatoms[dest->nr++] = src.iatoms[i++];
684 for (a = 0; a < nral; a++)
686 dest->iatoms[dest->nr++] = dnum + src.iatoms[i++];
693 static void set_posres_params(t_idef* idef, const gmx_molblock_t* molb, int i0, int a_offset)
699 il = &idef->il[F_POSRES];
701 idef->iparams_posres_nalloc = i1;
702 srenew(idef->iparams_posres, idef->iparams_posres_nalloc);
703 for (i = i0; i < i1; i++)
705 ip = &idef->iparams_posres[i];
706 /* Copy the force constants */
707 *ip = idef->iparams[il->iatoms[i * 2]];
708 a_molb = il->iatoms[i * 2 + 1] - a_offset;
709 if (molb->posres_xA.empty())
711 gmx_incons("Position restraint coordinates are missing");
713 ip->posres.pos0A[XX] = molb->posres_xA[a_molb][XX];
714 ip->posres.pos0A[YY] = molb->posres_xA[a_molb][YY];
715 ip->posres.pos0A[ZZ] = molb->posres_xA[a_molb][ZZ];
716 if (!molb->posres_xB.empty())
718 ip->posres.pos0B[XX] = molb->posres_xB[a_molb][XX];
719 ip->posres.pos0B[YY] = molb->posres_xB[a_molb][YY];
720 ip->posres.pos0B[ZZ] = molb->posres_xB[a_molb][ZZ];
724 ip->posres.pos0B[XX] = ip->posres.pos0A[XX];
725 ip->posres.pos0B[YY] = ip->posres.pos0A[YY];
726 ip->posres.pos0B[ZZ] = ip->posres.pos0A[ZZ];
728 /* Set the parameter index for idef->iparams_posre */
729 il->iatoms[i * 2] = i;
733 static void set_fbposres_params(t_idef* idef, const gmx_molblock_t* molb, int i0, int a_offset)
739 il = &idef->il[F_FBPOSRES];
741 idef->iparams_fbposres_nalloc = i1;
742 srenew(idef->iparams_fbposres, idef->iparams_fbposres_nalloc);
743 for (i = i0; i < i1; i++)
745 ip = &idef->iparams_fbposres[i];
746 /* Copy the force constants */
747 *ip = idef->iparams[il->iatoms[i * 2]];
748 a_molb = il->iatoms[i * 2 + 1] - a_offset;
749 if (molb->posres_xA.empty())
751 gmx_incons("Position restraint coordinates are missing");
753 /* Take flat-bottom posres reference from normal position restraints */
754 ip->fbposres.pos0[XX] = molb->posres_xA[a_molb][XX];
755 ip->fbposres.pos0[YY] = molb->posres_xA[a_molb][YY];
756 ip->fbposres.pos0[ZZ] = molb->posres_xA[a_molb][ZZ];
757 /* Note: no B-type for flat-bottom posres */
759 /* Set the parameter index for idef->iparams_posre */
760 il->iatoms[i * 2] = i;
764 /*! \brief Copy idef structure from mtop.
766 * Makes a deep copy of an idef data structure from a gmx_mtop_t.
767 * Used to initialize legacy topology types.
769 * \param[in] mtop Reference to input mtop.
770 * \param[in] idef Pointer to idef to populate.
771 * \param[in] mergeConstr Decide if constraints will be merged.
772 * \param[in] freeEnergyInteractionsAtEnd Decide if free energy stuff should
773 * be added at the end.
775 static void copyIdefFromMtop(const gmx_mtop_t& mtop, t_idef* idef, bool freeEnergyInteractionsAtEnd, bool mergeConstr)
777 const gmx_ffparams_t* ffp = &mtop.ffparams;
779 idef->ntypes = ffp->numTypes();
780 idef->atnr = ffp->atnr;
781 /* we can no longer copy the pointers to the mtop members,
782 * because they will become invalid as soon as mtop gets free'd.
783 * We also need to make sure to only operate on valid data!
786 if (!ffp->functype.empty())
788 snew(idef->functype, ffp->functype.size());
789 std::copy(ffp->functype.data(), ffp->functype.data() + ffp->functype.size(), idef->functype);
793 idef->functype = nullptr;
795 if (!ffp->iparams.empty())
797 snew(idef->iparams, ffp->iparams.size());
798 std::copy(ffp->iparams.data(), ffp->iparams.data() + ffp->iparams.size(), idef->iparams);
802 idef->iparams = nullptr;
804 idef->iparams_posres = nullptr;
805 idef->iparams_posres_nalloc = 0;
806 idef->iparams_fbposres = nullptr;
807 idef->iparams_fbposres_nalloc = 0;
808 idef->fudgeQQ = ffp->fudgeQQ;
809 idef->cmap_grid = new gmx_cmap_t;
810 *idef->cmap_grid = ffp->cmap_grid;
811 idef->ilsort = ilsortUNKNOWN;
813 for (int ftype = 0; ftype < F_NRE; ftype++)
815 idef->il[ftype].nr = 0;
816 idef->il[ftype].nalloc = 0;
817 idef->il[ftype].iatoms = nullptr;
821 for (const gmx_molblock_t& molb : mtop.molblock)
823 const gmx_moltype_t& molt = mtop.moltype[molb.type];
825 int srcnr = molt.atoms.nr;
828 int nposre_old = idef->il[F_POSRES].nr;
829 int nfbposre_old = idef->il[F_FBPOSRES].nr;
830 for (int ftype = 0; ftype < F_NRE; ftype++)
832 if (mergeConstr && ftype == F_CONSTR && molt.ilist[F_CONSTRNC].size() > 0)
834 /* Merge all constrains into one ilist.
835 * This simplifies the constraint code.
837 for (int mol = 0; mol < molb.nmol; mol++)
839 ilistcat(ftype, &idef->il[F_CONSTR], molt.ilist[F_CONSTR], 1,
840 destnr + mol * srcnr, srcnr);
841 ilistcat(ftype, &idef->il[F_CONSTR], molt.ilist[F_CONSTRNC], 1,
842 destnr + mol * srcnr, srcnr);
845 else if (!(mergeConstr && ftype == F_CONSTRNC))
847 ilistcat(ftype, &idef->il[ftype], molt.ilist[ftype], molb.nmol, destnr, srcnr);
850 if (idef->il[F_POSRES].nr > nposre_old)
852 /* Executing this line line stops gmxdump -sys working
853 * correctly. I'm not aware there's an elegant fix. */
854 set_posres_params(idef, &molb, nposre_old / 2, natoms);
856 if (idef->il[F_FBPOSRES].nr > nfbposre_old)
858 set_fbposres_params(idef, &molb, nfbposre_old / 2, natoms);
861 natoms += molb.nmol * srcnr;
864 if (mtop.bIntermolecularInteractions)
866 for (int ftype = 0; ftype < F_NRE; ftype++)
868 ilistcat(ftype, &idef->il[ftype], (*mtop.intermolecular_ilist)[ftype], 1, 0, mtop.natoms);
872 if (freeEnergyInteractionsAtEnd && gmx_mtop_bondeds_free_energy(&mtop))
874 std::vector<real> qA(mtop.natoms);
875 std::vector<real> qB(mtop.natoms);
876 for (const AtomProxy atomP : AtomRange(mtop))
878 const t_atom& local = atomP.atom();
879 int index = atomP.globalAtomNumber();
881 qB[index] = local.qB;
883 gmx_sort_ilist_fe(idef, qA.data(), qB.data());
887 idef->ilsort = ilsortNO_FE;
891 /*! \brief Copy atomtypes from mtop
893 * Makes a deep copy of t_atomtypes from gmx_mtop_t.
894 * Used to initialize legacy topology types.
896 * \param[in] mtop Reference to input mtop.
897 * \param[in] atomtypes Pointer to atomtypes to populate.
899 static void copyAtomtypesFromMtop(const gmx_mtop_t& mtop, t_atomtypes* atomtypes)
901 atomtypes->nr = mtop.atomtypes.nr;
902 if (mtop.atomtypes.atomnumber)
904 snew(atomtypes->atomnumber, mtop.atomtypes.nr);
905 std::copy(mtop.atomtypes.atomnumber, mtop.atomtypes.atomnumber + mtop.atomtypes.nr,
906 atomtypes->atomnumber);
910 atomtypes->atomnumber = nullptr;
914 /*! \brief Generate a single list of lists of exclusions for the whole system
916 * \param[in] mtop Reference to input mtop.
918 static gmx::ListOfLists<int> globalExclusionLists(const gmx_mtop_t& mtop)
920 gmx::ListOfLists<int> excls;
923 for (const gmx_molblock_t& molb : mtop.molblock)
925 const gmx_moltype_t& molt = mtop.moltype[molb.type];
927 for (int mol = 0; mol < molb.nmol; mol++)
929 excls.appendListOfLists(molt.excls, atomIndex);
931 atomIndex += molt.atoms.nr;
938 /*! \brief Updates inter-molecular exclusion lists
940 * This function updates inter-molecular exclusions to exclude all
941 * non-bonded interactions between a given list of atoms
943 * \param[inout] excls existing exclusions in local topology
944 * \param[in] ids list of global IDs of atoms
946 static void addMimicExclusions(gmx::ListOfLists<int>* excls, const gmx::ArrayRef<const int> ids)
948 t_blocka inter_excl{};
949 init_blocka(&inter_excl);
950 size_t n_q = ids.size();
952 inter_excl.nr = excls->ssize();
953 inter_excl.nra = n_q * n_q;
955 size_t total_nra = n_q * n_q;
957 snew(inter_excl.index, excls->ssize() + 1);
958 snew(inter_excl.a, total_nra);
960 for (int i = 0; i < inter_excl.nr; ++i)
962 inter_excl.index[i] = 0;
965 /* Here we loop over the list of QM atom ids
966 * and create exclusions between all of them resulting in
967 * n_q * n_q sized exclusion list
970 for (int k = 0; k < inter_excl.nr; ++k)
972 inter_excl.index[k] = prev_index;
973 for (long i = 0; i < ids.ssize(); i++)
979 size_t index = n_q * i;
980 inter_excl.index[ids[i]] = index;
981 prev_index = index + n_q;
982 for (size_t j = 0; j < n_q; ++j)
984 inter_excl.a[n_q * i + j] = ids[j];
988 inter_excl.index[ids[n_q - 1] + 1] = n_q * n_q;
990 inter_excl.index[inter_excl.nr] = n_q * n_q;
992 std::vector<gmx::ExclusionBlock> qmexcl2(excls->size());
993 gmx::blockaToExclusionBlocks(&inter_excl, qmexcl2);
995 // Merge the created exclusion list with the existing one
996 gmx::mergeExclusions(excls, qmexcl2);
999 static void gen_local_top(const gmx_mtop_t& mtop,
1000 bool freeEnergyInteractionsAtEnd,
1002 gmx_localtop_t* top)
1004 copyAtomtypesFromMtop(mtop, &top->atomtypes);
1005 copyIdefFromMtop(mtop, &top->idef, freeEnergyInteractionsAtEnd, bMergeConstr);
1006 top->excls = globalExclusionLists(mtop);
1007 if (!mtop.intermolecularExclusionGroup.empty())
1009 addMimicExclusions(&top->excls, mtop.intermolecularExclusionGroup);
1013 void gmx_mtop_generate_local_top(const gmx_mtop_t& mtop, gmx_localtop_t* top, bool freeEnergyInteractionsAtEnd)
1015 gen_local_top(mtop, freeEnergyInteractionsAtEnd, true, top);
1018 /*! \brief Fills an array with molecule begin/end atom indices
1020 * \param[in] mtop The global topology
1021 * \param[out] index Array of size nr. of molecules + 1 to be filled with molecule begin/end indices
1023 static void fillMoleculeIndices(const gmx_mtop_t& mtop, gmx::ArrayRef<int> index)
1025 int globalAtomIndex = 0;
1026 int globalMolIndex = 0;
1027 index[globalMolIndex] = globalAtomIndex;
1028 for (const gmx_molblock_t& molb : mtop.molblock)
1030 int numAtomsPerMolecule = mtop.moltype[molb.type].atoms.nr;
1031 for (int mol = 0; mol < molb.nmol; mol++)
1033 globalAtomIndex += numAtomsPerMolecule;
1034 globalMolIndex += 1;
1035 index[globalMolIndex] = globalAtomIndex;
1040 gmx::RangePartitioning gmx_mtop_molecules(const gmx_mtop_t& mtop)
1042 gmx::RangePartitioning mols;
1044 for (const gmx_molblock_t& molb : mtop.molblock)
1046 int numAtomsPerMolecule = mtop.moltype[molb.type].atoms.nr;
1047 for (int mol = 0; mol < molb.nmol; mol++)
1049 mols.appendBlock(numAtomsPerMolecule);
1056 /*! \brief Creates and returns a deprecated t_block struct with molecule indices
1058 * \param[in] mtop The global topology
1060 static t_block gmx_mtop_molecules_t_block(const gmx_mtop_t& mtop)
1064 mols.nr = gmx_mtop_num_molecules(mtop);
1065 mols.nalloc_index = mols.nr + 1;
1066 snew(mols.index, mols.nalloc_index);
1068 fillMoleculeIndices(mtop, gmx::arrayRefFromArray(mols.index, mols.nr + 1));
1073 static void gen_t_topology(const gmx_mtop_t& mtop,
1074 bool freeEnergyInteractionsAtEnd,
1078 copyAtomtypesFromMtop(mtop, &top->atomtypes);
1079 copyIdefFromMtop(mtop, &top->idef, freeEnergyInteractionsAtEnd, bMergeConstr);
1081 top->name = mtop.name;
1082 top->atoms = gmx_mtop_global_atoms(&mtop);
1083 top->mols = gmx_mtop_molecules_t_block(mtop);
1084 top->bIntermolecularInteractions = mtop.bIntermolecularInteractions;
1085 top->symtab = mtop.symtab;
1088 t_topology gmx_mtop_t_to_t_topology(gmx_mtop_t* mtop, bool freeMTop)
1092 gen_t_topology(*mtop, false, false, &top);
1096 // Clear pointers and counts, such that the pointers copied to top
1097 // keep pointing to valid data after destroying mtop.
1098 mtop->symtab.symbuf = nullptr;
1099 mtop->symtab.nr = 0;
1104 std::vector<int> get_atom_index(const gmx_mtop_t* mtop)
1107 std::vector<int> atom_index;
1108 for (const AtomProxy atomP : AtomRange(*mtop))
1110 const t_atom& local = atomP.atom();
1111 int index = atomP.globalAtomNumber();
1112 if (local.ptype == eptAtom)
1114 atom_index.push_back(index);
1120 void convertAtomsToMtop(t_symtab* symtab, char** name, t_atoms* atoms, gmx_mtop_t* mtop)
1122 mtop->symtab = *symtab;
1126 mtop->moltype.clear();
1127 mtop->moltype.resize(1);
1128 mtop->moltype.back().atoms = *atoms;
1130 mtop->molblock.resize(1);
1131 mtop->molblock[0].type = 0;
1132 mtop->molblock[0].nmol = 1;
1134 mtop->bIntermolecularInteractions = FALSE;
1136 mtop->natoms = atoms->nr;
1138 mtop->haveMoleculeIndices = false;
1140 gmx_mtop_finalize(mtop);
1143 bool haveFepPerturbedNBInteractions(const gmx_mtop_t* mtop)
1145 for (size_t mb = 0; mb < mtop->molblock.size(); mb++)
1147 const gmx_molblock_t& molb = mtop->molblock[mb];
1148 const gmx_moltype_t& molt = mtop->moltype[molb.type];
1149 for (int m = 0; m < molb.nmol; m++)
1151 for (int a = 0; a < molt.atoms.nr; a++)
1153 const t_atom& atom = molt.atoms.atom[a];
1154 if (PERTURBED(atom))