[ViewVC] Diff of: OpenMD/trunk/src/parallel/ForceMatrixDecomposition.cpp

Comparing branches/development/src/parallel/ForceMatrixDecomposition.cpp (file contents):
Revision 1579 by gezelter, Thu Jun 9 20:26:29 2011 UTC vs.
Revision 1588 by gezelter, Sat Jul 9 15:05:59 2011 UTC

#	Line 57 \| Line 57 \| namespace OpenMD {
57		storageLayout_ = sman_->getStorageLayout();
58		ff_ = info_->getForceField();
59		nLocal_ = snap_->getNumberOfAtoms();
60	<
60	>
61		nGroups_ = info_->getNLocalCutoffGroups();
62	–	cerr << "in dId, nGroups = " << nGroups_ << "\n";
62		// gather the information for atomtype IDs (atids):
63	<	identsLocal = info_->getIdentArray();
63	>	idents = info_->getIdentArray();
64		AtomLocalToGlobal = info_->getGlobalAtomIndices();
65		cgLocalToGlobal = info_->getGlobalGroupIndices();
66		vector<int> globalGroupMembership = info_->getGlobalGroupMembership();
68	–	vector<RealType> massFactorsLocal = info_->getMassFactors();
69	–	PairList excludes = info_->getExcludedInteractions();
70	–	PairList oneTwo = info_->getOneTwoInteractions();
71	–	PairList oneThree = info_->getOneThreeInteractions();
72	–	PairList oneFour = info_->getOneFourInteractions();
67
68	+	massFactors = info_->getMassFactors();
69	+
70	+	PairList* excludes = info_->getExcludedInteractions();
71	+	PairList* oneTwo = info_->getOneTwoInteractions();
72	+	PairList* oneThree = info_->getOneThreeInteractions();
73	+	PairList* oneFour = info_->getOneFourInteractions();
74	+
75		#ifdef IS_MPI
76
77		AtomCommIntRow = new Communicator<Row,int>(nLocal_);
#	Line 108 \| Line 109 \| namespace OpenMD {
109		identsRow.resize(nAtomsInRow_);
110		identsCol.resize(nAtomsInCol_);
111
112	<	AtomCommIntRow->gather(identsLocal, identsRow);
113	<	AtomCommIntColumn->gather(identsLocal, identsCol);
112	>	AtomCommIntRow->gather(idents, identsRow);
113	>	AtomCommIntColumn->gather(idents, identsCol);
114
115	+	vector<int>::iterator it;
116	+	for (it = AtomLocalToGlobal.begin(); it != AtomLocalToGlobal.end(); ++it) {
117	+	cerr << "my AtomLocalToGlobal = " << (*it) << "\n";
118	+	}
119		AtomCommIntRow->gather(AtomLocalToGlobal, AtomRowToGlobal);
120		AtomCommIntColumn->gather(AtomLocalToGlobal, AtomColToGlobal);
121
122		cgCommIntRow->gather(cgLocalToGlobal, cgRowToGlobal);
123		cgCommIntColumn->gather(cgLocalToGlobal, cgColToGlobal);
124
125	<	AtomCommRealRow->gather(massFactorsLocal, massFactorsRow);
126	<	AtomCommRealColumn->gather(massFactorsLocal, massFactorsCol);
125	>	AtomCommRealRow->gather(massFactors, massFactorsRow);
126	>	AtomCommRealColumn->gather(massFactors, massFactorsCol);
127
128		groupListRow_.clear();
129		groupListRow_.resize(nGroupsInRow_);
#	Line 142 \| Line 147 \| namespace OpenMD {
147		}
148		}
149
150	<	skipsForAtom.clear();
151	<	skipsForAtom.resize(nAtomsInRow_);
150	>	excludesForAtom.clear();
151	>	excludesForAtom.resize(nAtomsInRow_);
152		toposForAtom.clear();
153		toposForAtom.resize(nAtomsInRow_);
154		topoDist.clear();
#	Line 154 \| Line 159 \| namespace OpenMD {
159		for (int j = 0; j < nAtomsInCol_; j++) {
160		int jglob = AtomColToGlobal[j];
161
162	<	if (excludes.hasPair(iglob, jglob))
163	<	skipsForAtom[i].push_back(j);
162	>	if (excludes->hasPair(iglob, jglob))
163	>	excludesForAtom[i].push_back(j);
164
165	<	if (oneTwo.hasPair(iglob, jglob)) {
165	>	if (oneTwo->hasPair(iglob, jglob)) {
166		toposForAtom[i].push_back(j);
167		topoDist[i].push_back(1);
168		} else {
169	<	if (oneThree.hasPair(iglob, jglob)) {
169	>	if (oneThree->hasPair(iglob, jglob)) {
170		toposForAtom[i].push_back(j);
171		topoDist[i].push_back(2);
172		} else {
173	<	if (oneFour.hasPair(iglob, jglob)) {
173	>	if (oneFour->hasPair(iglob, jglob)) {
174		toposForAtom[i].push_back(j);
175		topoDist[i].push_back(3);
176		}
#	Line 188 \| Line 193 \| namespace OpenMD {
193		}
194		}
195
196	<	skipsForAtom.clear();
197	<	skipsForAtom.resize(nLocal_);
196	>	excludesForAtom.clear();
197	>	excludesForAtom.resize(nLocal_);
198		toposForAtom.clear();
199		toposForAtom.resize(nLocal_);
200		topoDist.clear();
#	Line 201 \| Line 206 \| namespace OpenMD {
206		for (int j = 0; j < nLocal_; j++) {
207		int jglob = AtomLocalToGlobal[j];
208
209	<	if (excludes.hasPair(iglob, jglob))
210	<	skipsForAtom[i].push_back(j);
209	>	if (excludes->hasPair(iglob, jglob))
210	>	excludesForAtom[i].push_back(j);
211
212	<	if (oneTwo.hasPair(iglob, jglob)) {
212	>	if (oneTwo->hasPair(iglob, jglob)) {
213		toposForAtom[i].push_back(j);
214		topoDist[i].push_back(1);
215		} else {
216	<	if (oneThree.hasPair(iglob, jglob)) {
216	>	if (oneThree->hasPair(iglob, jglob)) {
217		toposForAtom[i].push_back(j);
218		topoDist[i].push_back(2);
219		} else {
220	<	if (oneFour.hasPair(iglob, jglob)) {
220	>	if (oneFour->hasPair(iglob, jglob)) {
221		toposForAtom[i].push_back(j);
222		topoDist[i].push_back(3);
223		}
#	Line 222 \| Line 227 \| namespace OpenMD {
227		}
228
229		createGtypeCutoffMap();
230	+
231		}
232
233		void ForceMatrixDecomposition::createGtypeCutoffMap() {
234	<
234	>
235		RealType tol = 1e-6;
236		RealType rc;
237		int atid;
238		set<AtomType*> atypes = info_->getSimulatedAtomTypes();
239	<	vector<RealType> atypeCutoff;
240	<	atypeCutoff.resize( atypes.size() );
235	<
239	>	map<int, RealType> atypeCutoff;
240	>
241		for (set<AtomType*>::iterator at = atypes.begin();
242		at != atypes.end(); ++at){
238	–	rc = interactionMan_->getSuggestedCutoffRadius(*at);
243		atid = (*at)->getIdent();
244	<	atypeCutoff[atid] = rc;
244	>	if (userChoseCutoff_)
245	>	atypeCutoff[atid] = userCutoff_;
246	>	else
247	>	atypeCutoff[atid] = interactionMan_->getSuggestedCutoffRadius(*at);
248		}
249
250		vector<RealType> gTypeCutoffs;
244	–
251		// first we do a single loop over the cutoff groups to find the
252		// largest cutoff for any atypes present in this group.
253		#ifdef IS_MPI
#	Line 299 \| Line 305 \| namespace OpenMD {
305
306		vector<RealType> groupCutoff(nGroups_, 0.0);
307		groupToGtype.resize(nGroups_);
302	–
303	–	cerr << "nGroups = " << nGroups_ << "\n";
308		for (int cg1 = 0; cg1 < nGroups_; cg1++) {
309
310		groupCutoff[cg1] = 0.0;
#	Line 309 \| Line 313 \| namespace OpenMD {
313		for (vector<int>::iterator ia = atomList.begin();
314		ia != atomList.end(); ++ia) {
315		int atom1 = (*ia);
316	<	atid = identsLocal[atom1];
316	>	atid = idents[atom1];
317		if (atypeCutoff[atid] > groupCutoff[cg1]) {
318		groupCutoff[cg1] = atypeCutoff[atid];
319		}
#	Line 329 \| Line 333 \| namespace OpenMD {
333		}
334		#endif
335
332	–	cerr << "gTypeCutoffs.size() = " << gTypeCutoffs.size() << "\n";
336		// Now we find the maximum group cutoff value present in the simulation
337
338		RealType groupMax = *max_element(gTypeCutoffs.begin(), gTypeCutoffs.end());
#	Line 378 \| Line 381 \| namespace OpenMD {
381		if (abs(gTypeCutoffMap[key].first - userCutoff_) > 0.0001) {
382		sprintf(painCave.errMsg,
383		"ForceMatrixDecomposition::createGtypeCutoffMap "
384	<	"user-specified rCut does not match computed group Cutoff\n");
384	>	"user-specified rCut (%lf) does not match computed group Cutoff\n", userCutoff_);
385		painCave.severity = OPENMD_ERROR;
386		painCave.isFatal = 1;
387		simError();
#	Line 410 \| Line 413 \| namespace OpenMD {
413		}
414
415		void ForceMatrixDecomposition::zeroWorkArrays() {
416	+	pairwisePot = 0.0;
417	+	embeddingPot = 0.0;
418
414	–	for (int j = 0; j < N_INTERACTION_FAMILIES; j++) {
415	–	longRangePot_[j] = 0.0;
416	–	}
417	–
419		#ifdef IS_MPI
420		if (storageLayout_ & DataStorage::dslForce) {
421		fill(atomRowData.force.begin(), atomRowData.force.end(), V3Zero);
#	Line 430 \| Line 431 \| namespace OpenMD {
431		Vector<RealType, N_INTERACTION_FAMILIES> (0.0));
432
433		fill(pot_col.begin(), pot_col.end(),
434	<	Vector<RealType, N_INTERACTION_FAMILIES> (0.0));
434	<
435	<	pot_local = Vector<RealType, N_INTERACTION_FAMILIES>(0.0);
434	>	Vector<RealType, N_INTERACTION_FAMILIES> (0.0));
435
436		if (storageLayout_ & DataStorage::dslParticlePot) {
437		fill(atomRowData.particlePot.begin(), atomRowData.particlePot.end(), 0.0);
#	Line 456 \| Line 455 \| namespace OpenMD {
455		atomColData.functionalDerivative.end(), 0.0);
456		}
457
458	+	if (storageLayout_ & DataStorage::dslSkippedCharge) {
459	+	fill(atomRowData.skippedCharge.begin(),
460	+	atomRowData.skippedCharge.end(), 0.0);
461	+	fill(atomColData.skippedCharge.begin(),
462	+	atomColData.skippedCharge.end(), 0.0);
463	+	}
464	+
465		#else
466
467		if (storageLayout_ & DataStorage::dslParticlePot) {
#	Line 475 \| Line 481 \| namespace OpenMD {
481		fill(snap_->atomData.functionalDerivative.begin(),
482		snap_->atomData.functionalDerivative.end(), 0.0);
483		}
484	+	if (storageLayout_ & DataStorage::dslSkippedCharge) {
485	+	fill(snap_->atomData.skippedCharge.begin(),
486	+	snap_->atomData.skippedCharge.end(), 0.0);
487	+	}
488		#endif
489
490		}
#	Line 582 \| Line 592 \| namespace OpenMD {
592
593		if (storageLayout_ & DataStorage::dslTorque) {
594
595	<	int nt = snap_->atomData.force.size();
595	>	int nt = snap_->atomData.torque.size();
596		vector<Vector3d> trq_tmp(nt, V3Zero);
597
598		AtomCommVectorRow->scatter(atomRowData.torque, trq_tmp);
599	<	for (int i = 0; i < n; i++) {
599	>	for (int i = 0; i < nt; i++) {
600		snap_->atomData.torque[i] += trq_tmp[i];
601		trq_tmp[i] = 0.0;
602		}
603
604		AtomCommVectorColumn->scatter(atomColData.torque, trq_tmp);
605	<	for (int i = 0; i < n; i++)
605	>	for (int i = 0; i < nt; i++)
606		snap_->atomData.torque[i] += trq_tmp[i];
607		}
608	+
609	+	if (storageLayout_ & DataStorage::dslSkippedCharge) {
610	+
611	+	int ns = snap_->atomData.skippedCharge.size();
612	+	vector<RealType> skch_tmp(ns, 0.0);
613	+
614	+	AtomCommRealRow->scatter(atomRowData.skippedCharge, skch_tmp);
615	+	for (int i = 0; i < ns; i++) {
616	+	snap_->atomData.skippedCharge[i] = skch_tmp[i];
617	+	skch_tmp[i] = 0.0;
618	+	}
619	+
620	+	AtomCommRealColumn->scatter(atomColData.skippedCharge, skch_tmp);
621	+	for (int i = 0; i < ns; i++)
622	+	snap_->atomData.skippedCharge[i] += skch_tmp[i];
623	+	}
624
625		nLocal_ = snap_->getNumberOfAtoms();
626
#	Line 606 \| Line 632 \| namespace OpenMD {
632		AtomCommPotRow->scatter(pot_row, pot_temp);
633
634		for (int ii = 0; ii < pot_temp.size(); ii++ )
635	<	pot_local += pot_temp[ii];
635	>	pairwisePot += pot_temp[ii];
636
637		fill(pot_temp.begin(), pot_temp.end(),
638		Vector<RealType, N_INTERACTION_FAMILIES> (0.0));
#	Line 614 \| Line 640 \| namespace OpenMD {
640		AtomCommPotColumn->scatter(pot_col, pot_temp);
641
642		for (int ii = 0; ii < pot_temp.size(); ii++ )
643	<	pot_local += pot_temp[ii];
618	<
643	>	pairwisePot += pot_temp[ii];
644		#endif
645	+
646		}
647
648		int ForceMatrixDecomposition::getNAtomsInRow() {
#	Line 691 \| Line 717 \| namespace OpenMD {
717		#ifdef IS_MPI
718		return massFactorsRow[atom1];
719		#else
720	<	return massFactorsLocal[atom1];
720	>	return massFactors[atom1];
721		#endif
722		}
723
#	Line 699 \| Line 725 \| namespace OpenMD {
725		#ifdef IS_MPI
726		return massFactorsCol[atom2];
727		#else
728	<	return massFactorsLocal[atom2];
728	>	return massFactors[atom2];
729		#endif
730
731		}
#	Line 717 \| Line 743 \| namespace OpenMD {
743		return d;
744		}
745
746	<	vector<int> ForceMatrixDecomposition::getSkipsForAtom(int atom1) {
747	<	return skipsForAtom[atom1];
746	>	vector<int> ForceMatrixDecomposition::getExcludesForAtom(int atom1) {
747	>	return excludesForAtom[atom1];
748		}
749
750		/**
751	<	* There are a number of reasons to skip a pair or a
726	<	* particle. Mostly we do this to exclude atoms who are involved in
727	<	* short range interactions (bonds, bends, torsions), but we also
728	<	* need to exclude some overcounted interactions that result from
751	>	* We need to exclude some overcounted interactions that result from
752		* the parallel decomposition.
753		*/
754		bool ForceMatrixDecomposition::skipAtomPair(int atom1, int atom2) {
#	Line 745 \| Line 768 \| namespace OpenMD {
768		} else {
769		if ((unique_id_1 + unique_id_2) % 2 == 1) return true;
770		}
771	+	#endif
772	+	return false;
773	+	}
774	+
775	+	/**
776	+	* We need to handle the interactions for atoms who are involved in
777	+	* the same rigid body as well as some short range interactions
778	+	* (bonds, bends, torsions) differently from other interactions.
779	+	* We'll still visit the pairwise routines, but with a flag that
780	+	* tells those routines to exclude the pair from direct long range
781	+	* interactions. Some indirect interactions (notably reaction
782	+	* field) must still be handled for these pairs.
783	+	*/
784	+	bool ForceMatrixDecomposition::excludeAtomPair(int atom1, int atom2) {
785	+	int unique_id_2;
786	+
787	+	#ifdef IS_MPI
788	+	// in MPI, we have to look up the unique IDs for the row atom.
789	+	unique_id_2 = AtomColToGlobal[atom2];
790		#else
791		// in the normal loop, the atom numbers are unique
750	–	unique_id_1 = atom1;
792		unique_id_2 = atom2;
793		#endif
794
795	<	for (vector<int>::iterator i = skipsForAtom[atom1].begin();
796	<	i != skipsForAtom[atom1].end(); ++i) {
795	>	for (vector<int>::iterator i = excludesForAtom[atom1].begin();
796	>	i != excludesForAtom[atom1].end(); ++i) {
797		if ( (*i) == unique_id_2 ) return true;
798	<	}
798	>	}
799
800	+	return false;
801		}
802
803
#	Line 776 \| Line 818 \| namespace OpenMD {
818		}
819
820		// filling interaction blocks with pointers
821	<	InteractionData ForceMatrixDecomposition::fillInteractionData(int atom1, int atom2) {
822	<	InteractionData idat;
821	>	void ForceMatrixDecomposition::fillInteractionData(InteractionData &idat,
822	>	int atom1, int atom2) {
823
824	+	idat.excluded = excludeAtomPair(atom1, atom2);
825	+
826		#ifdef IS_MPI
827
828		idat.atypes = make_pair( ff_->getAtomType(identsRow[atom1]),
829		ff_->getAtomType(identsCol[atom2]) );
786	–
830
831		if (storageLayout_ & DataStorage::dslAmat) {
832		idat.A1 = &(atomRowData.aMat[atom1]);
#	Line 820 \| Line 863 \| namespace OpenMD {
863		idat.particlePot2 = &(atomColData.particlePot[atom2]);
864		}
865
866	+	if (storageLayout_ & DataStorage::dslSkippedCharge) {
867	+	idat.skippedCharge1 = &(atomRowData.skippedCharge[atom1]);
868	+	idat.skippedCharge2 = &(atomColData.skippedCharge[atom2]);
869	+	}
870	+
871		#else
872
873	<	idat.atypes = make_pair( ff_->getAtomType(identsLocal[atom1]),
874	<	ff_->getAtomType(identsLocal[atom2]) );
873	>	idat.atypes = make_pair( ff_->getAtomType(idents[atom1]),
874	>	ff_->getAtomType(idents[atom2]) );
875
876		if (storageLayout_ & DataStorage::dslAmat) {
877		idat.A1 = &(snap_->atomData.aMat[atom1]);
#	Line 840 \| Line 888 \| namespace OpenMD {
888		idat.t2 = &(snap_->atomData.torque[atom2]);
889		}
890
891	<	if (storageLayout_ & DataStorage::dslDensity) {
891	>	if (storageLayout_ & DataStorage::dslDensity) {
892		idat.rho1 = &(snap_->atomData.density[atom1]);
893		idat.rho2 = &(snap_->atomData.density[atom2]);
894		}
#	Line 860 \| Line 908 \| namespace OpenMD {
908		idat.particlePot2 = &(snap_->atomData.particlePot[atom2]);
909		}
910
911	+	if (storageLayout_ & DataStorage::dslSkippedCharge) {
912	+	idat.skippedCharge1 = &(snap_->atomData.skippedCharge[atom1]);
913	+	idat.skippedCharge2 = &(snap_->atomData.skippedCharge[atom2]);
914	+	}
915		#endif
864	–	return idat;
916		}
917
918
919	<	void ForceMatrixDecomposition::unpackInteractionData(InteractionData idat, int atom1, int atom2) {
919	>	void ForceMatrixDecomposition::unpackInteractionData(InteractionData &idat, int atom1, int atom2) {
920		#ifdef IS_MPI
921		pot_row[atom1] += 0.5 * *(idat.pot);
922		pot_col[atom2] += 0.5 * *(idat.pot);
#	Line 873 \| Line 924 \| namespace OpenMD {
924		atomRowData.force[atom1] += *(idat.f1);
925		atomColData.force[atom2] -= *(idat.f1);
926		#else
927	<	longRangePot_ += *(idat.pot);
928	<
927	>	pairwisePot += *(idat.pot);
928	>
929		snap_->atomData.force[atom1] += *(idat.f1);
930		snap_->atomData.force[atom2] -= *(idat.f1);
931		#endif
932	<
932	>
933		}
934
884	–
885	–	InteractionData ForceMatrixDecomposition::fillSkipData(int atom1, int atom2){
886	–
887	–	InteractionData idat;
888	–	#ifdef IS_MPI
889	–	idat.atypes = make_pair( ff_->getAtomType(identsRow[atom1]),
890	–	ff_->getAtomType(identsCol[atom2]) );
891	–
892	–	if (storageLayout_ & DataStorage::dslElectroFrame) {
893	–	idat.eFrame1 = &(atomRowData.electroFrame[atom1]);
894	–	idat.eFrame2 = &(atomColData.electroFrame[atom2]);
895	–	}
896	–	if (storageLayout_ & DataStorage::dslTorque) {
897	–	idat.t1 = &(atomRowData.torque[atom1]);
898	–	idat.t2 = &(atomColData.torque[atom2]);
899	–	}
900	–	#else
901	–	idat.atypes = make_pair( ff_->getAtomType(identsLocal[atom1]),
902	–	ff_->getAtomType(identsLocal[atom2]) );
903	–
904	–	if (storageLayout_ & DataStorage::dslElectroFrame) {
905	–	idat.eFrame1 = &(snap_->atomData.electroFrame[atom1]);
906	–	idat.eFrame2 = &(snap_->atomData.electroFrame[atom2]);
907	–	}
908	–	if (storageLayout_ & DataStorage::dslTorque) {
909	–	idat.t1 = &(snap_->atomData.torque[atom1]);
910	–	idat.t2 = &(snap_->atomData.torque[atom2]);
911	–	}
912	–	#endif
913	–	}
914	–
935		/*
936		* buildNeighborList
937		*
#	Line 922 \| Line 942 \| namespace OpenMD {
942
943		vector<pair<int, int> > neighborList;
944		groupCutoffs cuts;
945	+	bool doAllPairs = false;
946	+
947		#ifdef IS_MPI
948		cellListRow_.clear();
949		cellListCol_.clear();
#	Line 941 \| Line 963 \| namespace OpenMD {
963		nCells_.y() = (int) ( Hy.length() )/ rList_;
964		nCells_.z() = (int) ( Hz.length() )/ rList_;
965
966	+	// handle small boxes where the cell offsets can end up repeating cells
967	+
968	+	if (nCells_.x() < 3) doAllPairs = true;
969	+	if (nCells_.y() < 3) doAllPairs = true;
970	+	if (nCells_.z() < 3) doAllPairs = true;
971	+
972		Mat3x3d invHmat = snap_->getInvHmat();
973		Vector3d rs, scaled, dr;
974		Vector3i whichCell;
#	Line 954 \| Line 982 \| namespace OpenMD {
982		cellList_.resize(nCtot);
983		#endif
984
985	+	if (!doAllPairs) {
986		#ifdef IS_MPI
958	–	for (int i = 0; i < nGroupsInRow_; i++) {
959	–	rs = cgRowData.position[i];
960	–	// scaled positions relative to the box vectors
961	–	scaled = invHmat * rs;
962	–	// wrap the vector back into the unit box by subtracting integer box
963	–	// numbers
964	–	for (int j = 0; j < 3; j++)
965	–	scaled[j] -= roundMe(scaled[j]);
966	–
967	–	// find xyz-indices of cell that cutoffGroup is in.
968	–	whichCell.x() = nCells_.x() * scaled.x();
969	–	whichCell.y() = nCells_.y() * scaled.y();
970	–	whichCell.z() = nCells_.z() * scaled.z();
987
988	<	// find single index of this cell:
989	<	cellIndex = Vlinear(whichCell, nCells_);
990	<	// add this cutoff group to the list of groups in this cell;
991	<	cellListRow_[cellIndex].push_back(i);
992	<	}
993	<
994	<	for (int i = 0; i < nGroupsInCol_; i++) {
995	<	rs = cgColData.position[i];
996	<	// scaled positions relative to the box vectors
997	<	scaled = invHmat * rs;
998	<	// wrap the vector back into the unit box by subtracting integer box
999	<	// numbers
1000	<	for (int j = 0; j < 3; j++)
1001	<	scaled[j] -= roundMe(scaled[j]);
1002	<
1003	<	// find xyz-indices of cell that cutoffGroup is in.
1004	<	whichCell.x() = nCells_.x() * scaled.x();
1005	<	whichCell.y() = nCells_.y() * scaled.y();
1006	<	whichCell.z() = nCells_.z() * scaled.z();
1007	<
1008	<	// find single index of this cell:
1009	<	cellIndex = Vlinear(whichCell, nCells_);
1010	<	// add this cutoff group to the list of groups in this cell;
1011	<	cellListCol_[cellIndex].push_back(i);
1012	<	}
988	>	for (int i = 0; i < nGroupsInRow_; i++) {
989	>	rs = cgRowData.position[i];
990	>
991	>	// scaled positions relative to the box vectors
992	>	scaled = invHmat * rs;
993	>
994	>	// wrap the vector back into the unit box by subtracting integer box
995	>	// numbers
996	>	for (int j = 0; j < 3; j++) {
997	>	scaled[j] -= roundMe(scaled[j]);
998	>	scaled[j] += 0.5;
999	>	}
1000	>
1001	>	// find xyz-indices of cell that cutoffGroup is in.
1002	>	whichCell.x() = nCells_.x() * scaled.x();
1003	>	whichCell.y() = nCells_.y() * scaled.y();
1004	>	whichCell.z() = nCells_.z() * scaled.z();
1005	>
1006	>	// find single index of this cell:
1007	>	cellIndex = Vlinear(whichCell, nCells_);
1008	>
1009	>	// add this cutoff group to the list of groups in this cell;
1010	>	cellListRow_[cellIndex].push_back(i);
1011	>	}
1012	>
1013	>	for (int i = 0; i < nGroupsInCol_; i++) {
1014	>	rs = cgColData.position[i];
1015	>
1016	>	// scaled positions relative to the box vectors
1017	>	scaled = invHmat * rs;
1018	>
1019	>	// wrap the vector back into the unit box by subtracting integer box
1020	>	// numbers
1021	>	for (int j = 0; j < 3; j++) {
1022	>	scaled[j] -= roundMe(scaled[j]);
1023	>	scaled[j] += 0.5;
1024	>	}
1025	>
1026	>	// find xyz-indices of cell that cutoffGroup is in.
1027	>	whichCell.x() = nCells_.x() * scaled.x();
1028	>	whichCell.y() = nCells_.y() * scaled.y();
1029	>	whichCell.z() = nCells_.z() * scaled.z();
1030	>
1031	>	// find single index of this cell:
1032	>	cellIndex = Vlinear(whichCell, nCells_);
1033	>
1034	>	// add this cutoff group to the list of groups in this cell;
1035	>	cellListCol_[cellIndex].push_back(i);
1036	>	}
1037		#else
1038	<	for (int i = 0; i < nGroups_; i++) {
1039	<	rs = snap_->cgData.position[i];
1040	<	// scaled positions relative to the box vectors
1041	<	scaled = invHmat * rs;
1042	<	// wrap the vector back into the unit box by subtracting integer box
1043	<	// numbers
1044	<	for (int j = 0; j < 3; j++)
1045	<	scaled[j] -= roundMe(scaled[j]);
1046	<
1047	<	// find xyz-indices of cell that cutoffGroup is in.
1048	<	whichCell.x() = nCells_.x() * scaled.x();
1049	<	whichCell.y() = nCells_.y() * scaled.y();
1050	<	whichCell.z() = nCells_.z() * scaled.z();
1051	<
1052	<	// find single index of this cell:
1053	<	cellIndex = Vlinear(whichCell, nCells_);
1054	<	// add this cutoff group to the list of groups in this cell;
1055	<	cellList_[cellIndex].push_back(i);
1056	<	}
1038	>	for (int i = 0; i < nGroups_; i++) {
1039	>	rs = snap_->cgData.position[i];
1040	>
1041	>	// scaled positions relative to the box vectors
1042	>	scaled = invHmat * rs;
1043	>
1044	>	// wrap the vector back into the unit box by subtracting integer box
1045	>	// numbers
1046	>	for (int j = 0; j < 3; j++) {
1047	>	scaled[j] -= roundMe(scaled[j]);
1048	>	scaled[j] += 0.5;
1049	>	}
1050	>
1051	>	// find xyz-indices of cell that cutoffGroup is in.
1052	>	whichCell.x() = nCells_.x() * scaled.x();
1053	>	whichCell.y() = nCells_.y() * scaled.y();
1054	>	whichCell.z() = nCells_.z() * scaled.z();
1055	>
1056	>	// find single index of this cell:
1057	>	cellIndex = Vlinear(whichCell, nCells_);
1058	>
1059	>	// add this cutoff group to the list of groups in this cell;
1060	>	cellList_[cellIndex].push_back(i);
1061	>	}
1062		#endif
1063
1064	<	for (int m1z = 0; m1z < nCells_.z(); m1z++) {
1065	<	for (int m1y = 0; m1y < nCells_.y(); m1y++) {
1066	<	for (int m1x = 0; m1x < nCells_.x(); m1x++) {
1067	<	Vector3i m1v(m1x, m1y, m1z);
1068	<	int m1 = Vlinear(m1v, nCells_);
1024	<
1025	<	for (vector<Vector3i>::iterator os = cellOffsets_.begin();
1026	<	os != cellOffsets_.end(); ++os) {
1064	>	for (int m1z = 0; m1z < nCells_.z(); m1z++) {
1065	>	for (int m1y = 0; m1y < nCells_.y(); m1y++) {
1066	>	for (int m1x = 0; m1x < nCells_.x(); m1x++) {
1067	>	Vector3i m1v(m1x, m1y, m1z);
1068	>	int m1 = Vlinear(m1v, nCells_);
1069
1070	<	Vector3i m2v = m1v + (*os);
1071	<
1072	<	if (m2v.x() >= nCells_.x()) {
1073	<	m2v.x() = 0;
1074	<	} else if (m2v.x() < 0) {
1075	<	m2v.x() = nCells_.x() - 1;
1076	<	}
1077	<
1078	<	if (m2v.y() >= nCells_.y()) {
1079	<	m2v.y() = 0;
1080	<	} else if (m2v.y() < 0) {
1081	<	m2v.y() = nCells_.y() - 1;
1082	<	}
1083	<
1084	<	if (m2v.z() >= nCells_.z()) {
1085	<	m2v.z() = 0;
1086	<	} else if (m2v.z() < 0) {
1087	<	m2v.z() = nCells_.z() - 1;
1088	<	}
1089	<
1090	<	int m2 = Vlinear (m2v, nCells_);
1091	<
1070	>	for (vector<Vector3i>::iterator os = cellOffsets_.begin();
1071	>	os != cellOffsets_.end(); ++os) {
1072	>
1073	>	Vector3i m2v = m1v + (*os);
1074	>
1075	>	if (m2v.x() >= nCells_.x()) {
1076	>	m2v.x() = 0;
1077	>	} else if (m2v.x() < 0) {
1078	>	m2v.x() = nCells_.x() - 1;
1079	>	}
1080	>
1081	>	if (m2v.y() >= nCells_.y()) {
1082	>	m2v.y() = 0;
1083	>	} else if (m2v.y() < 0) {
1084	>	m2v.y() = nCells_.y() - 1;
1085	>	}
1086	>
1087	>	if (m2v.z() >= nCells_.z()) {
1088	>	m2v.z() = 0;
1089	>	} else if (m2v.z() < 0) {
1090	>	m2v.z() = nCells_.z() - 1;
1091	>	}
1092	>
1093	>	int m2 = Vlinear (m2v, nCells_);
1094	>
1095		#ifdef IS_MPI
1096	<	for (vector<int>::iterator j1 = cellListRow_[m1].begin();
1097	<	j1 != cellListRow_[m1].end(); ++j1) {
1098	<	for (vector<int>::iterator j2 = cellListCol_[m2].begin();
1099	<	j2 != cellListCol_[m2].end(); ++j2) {
1100	<
1101	<	// Always do this if we're in different cells or if
1102	<	// we're in the same cell and the global index of the
1103	<	// j2 cutoff group is less than the j1 cutoff group
1104	<
1105	<	if (m2 != m1 \|\| cgColToGlobal[(j2)] < cgRowToGlobal[(j1)]) {
1106	<	dr = cgColData.position[(j2)] - cgRowData.position[(j1)];
1107	<	snap_->wrapVector(dr);
1108	<	cuts = getGroupCutoffs( (j1), (j2) );
1109	<	if (dr.lengthSquare() < cuts.third) {
1110	<	neighborList.push_back(make_pair((j1), (j2)));
1096	>	for (vector<int>::iterator j1 = cellListRow_[m1].begin();
1097	>	j1 != cellListRow_[m1].end(); ++j1) {
1098	>	for (vector<int>::iterator j2 = cellListCol_[m2].begin();
1099	>	j2 != cellListCol_[m2].end(); ++j2) {
1100	>
1101	>	// Always do this if we're in different cells or if
1102	>	// we're in the same cell and the global index of the
1103	>	// j2 cutoff group is less than the j1 cutoff group
1104	>
1105	>	if (m2 != m1 \|\| cgColToGlobal[(j2)] < cgRowToGlobal[(j1)]) {
1106	>	dr = cgColData.position[(j2)] - cgRowData.position[(j1)];
1107	>	snap_->wrapVector(dr);
1108	>	cuts = getGroupCutoffs( (j1), (j2) );
1109	>	if (dr.lengthSquare() < cuts.third) {
1110	>	neighborList.push_back(make_pair((j1), (j2)));
1111	>	}
1112		}
1113		}
1114		}
1069	–	}
1115		#else
1116	<	for (vector<int>::iterator j1 = cellList_[m1].begin();
1117	<	j1 != cellList_[m1].end(); ++j1) {
1118	<	for (vector<int>::iterator j2 = cellList_[m2].begin();
1119	<	j2 != cellList_[m2].end(); ++j2) {
1120	<
1121	<	// Always do this if we're in different cells or if
1122	<	// we're in the same cell and the global index of the
1123	<	// j2 cutoff group is less than the j1 cutoff group
1124	<
1125	<	if (m2 != m1 \|\| (j2) < (j1)) {
1126	<	dr = snap_->cgData.position[(j2)] - snap_->cgData.position[(j1)];
1127	<	snap_->wrapVector(dr);
1128	<	cuts = getGroupCutoffs( (j1), (j2) );
1129	<	if (dr.lengthSquare() < cuts.third) {
1130	<	neighborList.push_back(make_pair((j1), (j2)));
1116	>
1117	>	for (vector<int>::iterator j1 = cellList_[m1].begin();
1118	>	j1 != cellList_[m1].end(); ++j1) {
1119	>	for (vector<int>::iterator j2 = cellList_[m2].begin();
1120	>	j2 != cellList_[m2].end(); ++j2) {
1121	>
1122	>	// Always do this if we're in different cells or if
1123	>	// we're in the same cell and the global index of the
1124	>	// j2 cutoff group is less than the j1 cutoff group
1125	>
1126	>	if (m2 != m1 \|\| (j2) < (j1)) {
1127	>	dr = snap_->cgData.position[(j2)] - snap_->cgData.position[(j1)];
1128	>	snap_->wrapVector(dr);
1129	>	cuts = getGroupCutoffs( (j1), (j2) );
1130	>	if (dr.lengthSquare() < cuts.third) {
1131	>	neighborList.push_back(make_pair((j1), (j2)));
1132	>	}
1133		}
1134		}
1135		}
1089	–	}
1136		#endif
1137	+	}
1138		}
1139		}
1140		}
1141	+	} else {
1142	+	// branch to do all cutoff group pairs
1143	+	#ifdef IS_MPI
1144	+	for (int j1 = 0; j1 < nGroupsInRow_; j1++) {
1145	+	for (int j2 = 0; j2 < nGroupsInCol_; j2++) {
1146	+	dr = cgColData.position[j2] - cgRowData.position[j1];
1147	+	snap_->wrapVector(dr);
1148	+	cuts = getGroupCutoffs( j1, j2 );
1149	+	if (dr.lengthSquare() < cuts.third) {
1150	+	neighborList.push_back(make_pair(j1, j2));
1151	+	}
1152	+	}
1153	+	}
1154	+	#else
1155	+	for (int j1 = 0; j1 < nGroups_ - 1; j1++) {
1156	+	for (int j2 = j1 + 1; j2 < nGroups_; j2++) {
1157	+	dr = snap_->cgData.position[j2] - snap_->cgData.position[j1];
1158	+	snap_->wrapVector(dr);
1159	+	cuts = getGroupCutoffs( j1, j2 );
1160	+	if (dr.lengthSquare() < cuts.third) {
1161	+	neighborList.push_back(make_pair(j1, j2));
1162	+	}
1163	+	}
1164	+	}
1165	+	#endif
1166		}
1167	<
1167	>
1168		// save the local cutoff group positions for the check that is
1169		// done on each loop:
1170		saved_CG_positions_.clear();
1171		for (int i = 0; i < nGroups_; i++)
1172		saved_CG_positions_.push_back(snap_->cgData.position[i]);
1173	<
1173	>
1174		return neighborList;
1175		}
1176		} //end namespace OpenMD

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Comparing branches/development/src/parallel/ForceMatrixDecomposition.cpp (file contents): Revision 1579 by gezelter, Thu Jun 9 20:26:29 2011 UTC vs. Revision 1588 by gezelter, Sat Jul 9 15:05:59 2011 UTC

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Comparing branches/development/src/parallel/ForceMatrixDecomposition.cpp (file contents):
Revision 1579 by gezelter, Thu Jun 9 20:26:29 2011 UTC vs.
Revision 1588 by gezelter, Sat Jul 9 15:05:59 2011 UTC