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root/OpenMD/trunk/src/parallel/ForceMatrixDecomposition.cpp
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Comparing branches/development/src/parallel/ForceMatrixDecomposition.cpp (file contents):
Revision 1665 by gezelter, Tue Nov 22 20:38:56 2011 UTC vs.
Revision 1736 by jmichalk, Tue Jun 5 17:51:31 2012 UTC

# Line 95 | Line 95 | namespace OpenMD {
95      storageLayout_ = sman_->getStorageLayout();
96      ff_ = info_->getForceField();
97      nLocal_ = snap_->getNumberOfAtoms();
98 <    
98 >  
99      nGroups_ = info_->getNLocalCutoffGroups();
100      // gather the information for atomtype IDs (atids):
101      idents = info_->getIdentArray();
# Line 109 | Line 109 | namespace OpenMD {
109      PairList* oneTwo = info_->getOneTwoInteractions();
110      PairList* oneThree = info_->getOneThreeInteractions();
111      PairList* oneFour = info_->getOneFourInteractions();
112 <
112 >    
113 >    if (needVelocities_)
114 >      snap_->cgData.setStorageLayout(DataStorage::dslPosition |
115 >                                     DataStorage::dslVelocity);
116 >    else
117 >      snap_->cgData.setStorageLayout(DataStorage::dslPosition);
118 >    
119   #ifdef IS_MPI
120  
121      MPI::Intracomm row = rowComm.getComm();
# Line 145 | Line 151 | namespace OpenMD {
151      cgRowData.resize(nGroupsInRow_);
152      cgRowData.setStorageLayout(DataStorage::dslPosition);
153      cgColData.resize(nGroupsInCol_);
154 <    cgColData.setStorageLayout(DataStorage::dslPosition);
155 <        
154 >    if (needVelocities_)
155 >      // we only need column velocities if we need them.
156 >      cgColData.setStorageLayout(DataStorage::dslPosition |
157 >                                 DataStorage::dslVelocity);
158 >    else    
159 >      cgColData.setStorageLayout(DataStorage::dslPosition);
160 >      
161      identsRow.resize(nAtomsInRow_);
162      identsCol.resize(nAtomsInCol_);
163      
# Line 525 | Line 536 | namespace OpenMD {
536             atomColData.skippedCharge.end(), 0.0);
537      }
538  
539 +    if (storageLayout_ & DataStorage::dslFlucQForce) {      
540 +      fill(atomRowData.flucQFrc.begin(),
541 +           atomRowData.flucQFrc.end(), 0.0);
542 +      fill(atomColData.flucQFrc.begin(),
543 +           atomColData.flucQFrc.end(), 0.0);
544 +    }
545 +
546 +    if (storageLayout_ & DataStorage::dslElectricField) {    
547 +      fill(atomRowData.electricField.begin(),
548 +           atomRowData.electricField.end(), V3Zero);
549 +      fill(atomColData.electricField.begin(),
550 +           atomColData.electricField.end(), V3Zero);
551 +    }
552 +
553 +    if (storageLayout_ & DataStorage::dslFlucQForce) {    
554 +      fill(atomRowData.flucQFrc.begin(), atomRowData.flucQFrc.end(),
555 +           0.0);
556 +      fill(atomColData.flucQFrc.begin(), atomColData.flucQFrc.end(),
557 +           0.0);
558 +    }
559 +
560   #endif
561      // even in parallel, we need to zero out the local arrays:
562  
# Line 537 | Line 569 | namespace OpenMD {
569        fill(snap_->atomData.density.begin(),
570             snap_->atomData.density.end(), 0.0);
571      }
572 +
573      if (storageLayout_ & DataStorage::dslFunctional) {
574        fill(snap_->atomData.functional.begin(),
575             snap_->atomData.functional.end(), 0.0);
576      }
577 +
578      if (storageLayout_ & DataStorage::dslFunctionalDerivative) {      
579        fill(snap_->atomData.functionalDerivative.begin(),
580             snap_->atomData.functionalDerivative.end(), 0.0);
581      }
582 +
583      if (storageLayout_ & DataStorage::dslSkippedCharge) {      
584        fill(snap_->atomData.skippedCharge.begin(),
585             snap_->atomData.skippedCharge.end(), 0.0);
586      }
587 <    
587 >
588 >    if (storageLayout_ & DataStorage::dslElectricField) {      
589 >      fill(snap_->atomData.electricField.begin(),
590 >           snap_->atomData.electricField.end(), V3Zero);
591 >    }
592    }
593  
594  
# Line 572 | Line 611 | namespace OpenMD {
611      cgPlanVectorColumn->gather(snap_->cgData.position,
612                                 cgColData.position);
613  
614 +
615 +
616 +    if (needVelocities_) {
617 +      // gather up the atomic velocities
618 +      AtomPlanVectorColumn->gather(snap_->atomData.velocity,
619 +                                   atomColData.velocity);
620 +      
621 +      cgPlanVectorColumn->gather(snap_->cgData.velocity,
622 +                                 cgColData.velocity);
623 +    }
624 +
625      
626      // if needed, gather the atomic rotation matrices
627      if (storageLayout_ & DataStorage::dslAmat) {
# Line 589 | Line 639 | namespace OpenMD {
639                                     atomColData.electroFrame);
640      }
641  
642 +    // if needed, gather the atomic fluctuating charge values
643 +    if (storageLayout_ & DataStorage::dslFlucQPosition) {
644 +      AtomPlanRealRow->gather(snap_->atomData.flucQPos,
645 +                              atomRowData.flucQPos);
646 +      AtomPlanRealColumn->gather(snap_->atomData.flucQPos,
647 +                                 atomColData.flucQPos);
648 +    }
649 +
650   #endif      
651    }
652    
# Line 611 | Line 669 | namespace OpenMD {
669        for (int i = 0; i < n; i++)
670          snap_->atomData.density[i] += rho_tmp[i];
671      }
672 +
673 +    if (storageLayout_ & DataStorage::dslElectricField) {
674 +      
675 +      AtomPlanVectorRow->scatter(atomRowData.electricField,
676 +                                 snap_->atomData.electricField);
677 +      
678 +      int n = snap_->atomData.electricField.size();
679 +      vector<Vector3d> field_tmp(n, V3Zero);
680 +      AtomPlanVectorColumn->scatter(atomColData.electricField, field_tmp);
681 +      for (int i = 0; i < n; i++)
682 +        snap_->atomData.electricField[i] += field_tmp[i];
683 +    }
684   #endif
685    }
686  
# Line 690 | Line 760 | namespace OpenMD {
760              
761      }
762      
763 +    if (storageLayout_ & DataStorage::dslFlucQForce) {
764 +
765 +      int nq = snap_->atomData.flucQFrc.size();
766 +      vector<RealType> fqfrc_tmp(nq, 0.0);
767 +
768 +      AtomPlanRealRow->scatter(atomRowData.flucQFrc, fqfrc_tmp);
769 +      for (int i = 0; i < nq; i++) {
770 +        snap_->atomData.flucQFrc[i] += fqfrc_tmp[i];
771 +        fqfrc_tmp[i] = 0.0;
772 +      }
773 +      
774 +      AtomPlanRealColumn->scatter(atomColData.flucQFrc, fqfrc_tmp);
775 +      for (int i = 0; i < nq; i++)
776 +        snap_->atomData.flucQFrc[i] += fqfrc_tmp[i];
777 +            
778 +    }
779 +
780      nLocal_ = snap_->getNumberOfAtoms();
781  
782      vector<potVec> pot_temp(nLocal_,
# Line 701 | Line 788 | namespace OpenMD {
788  
789      for (int ii = 0;  ii < pot_temp.size(); ii++ )
790        pairwisePot += pot_temp[ii];
791 <    
791 >        
792 >    if (storageLayout_ & DataStorage::dslParticlePot) {
793 >      // This is the pairwise contribution to the particle pot.  The
794 >      // embedding contribution is added in each of the low level
795 >      // non-bonded routines.  In single processor, this is done in
796 >      // unpackInteractionData, not in collectData.
797 >      for (int ii = 0; ii < N_INTERACTION_FAMILIES; ii++) {
798 >        for (int i = 0; i < nLocal_; i++) {
799 >          // factor of two is because the total potential terms are divided
800 >          // by 2 in parallel due to row/ column scatter      
801 >          snap_->atomData.particlePot[i] += 2.0 * pot_temp[i](ii);
802 >        }
803 >      }
804 >    }
805 >
806      fill(pot_temp.begin(), pot_temp.end(),
807           Vector<RealType, N_INTERACTION_FAMILIES> (0.0));
808        
# Line 709 | Line 810 | namespace OpenMD {
810      
811      for (int ii = 0;  ii < pot_temp.size(); ii++ )
812        pairwisePot += pot_temp[ii];    
813 +
814 +    if (storageLayout_ & DataStorage::dslParticlePot) {
815 +      // This is the pairwise contribution to the particle pot.  The
816 +      // embedding contribution is added in each of the low level
817 +      // non-bonded routines.  In single processor, this is done in
818 +      // unpackInteractionData, not in collectData.
819 +      for (int ii = 0; ii < N_INTERACTION_FAMILIES; ii++) {
820 +        for (int i = 0; i < nLocal_; i++) {
821 +          // factor of two is because the total potential terms are divided
822 +          // by 2 in parallel due to row/ column scatter      
823 +          snap_->atomData.particlePot[i] += 2.0 * pot_temp[i](ii);
824 +        }
825 +      }
826 +    }
827      
828 +    if (storageLayout_ & DataStorage::dslParticlePot) {
829 +      int npp = snap_->atomData.particlePot.size();
830 +      vector<RealType> ppot_temp(npp, 0.0);
831 +
832 +      // This is the direct or embedding contribution to the particle
833 +      // pot.
834 +      
835 +      AtomPlanRealRow->scatter(atomRowData.particlePot, ppot_temp);
836 +      for (int i = 0; i < npp; i++) {
837 +        snap_->atomData.particlePot[i] += ppot_temp[i];
838 +      }
839 +
840 +      fill(ppot_temp.begin(), ppot_temp.end(), 0.0);
841 +      
842 +      AtomPlanRealColumn->scatter(atomColData.particlePot, ppot_temp);
843 +      for (int i = 0; i < npp; i++) {
844 +        snap_->atomData.particlePot[i] += ppot_temp[i];
845 +      }
846 +    }
847 +
848      for (int ii = 0; ii < N_INTERACTION_FAMILIES; ii++) {
849        RealType ploc1 = pairwisePot[ii];
850        RealType ploc2 = 0.0;
# Line 723 | Line 858 | namespace OpenMD {
858        MPI::COMM_WORLD.Allreduce(&ploc1, &ploc2, 1, MPI::REALTYPE, MPI::SUM);
859        embeddingPot[ii] = ploc2;
860      }
861 +    
862 +    // Here be dragons.
863 +    MPI::Intracomm col = colComm.getComm();
864  
865 +    col.Allreduce(MPI::IN_PLACE,
866 +                  &snap_->frameData.conductiveHeatFlux[0], 3,
867 +                  MPI::REALTYPE, MPI::SUM);
868 +
869 +
870   #endif
871  
872    }
# Line 766 | Line 909 | namespace OpenMD {
909      
910      snap_->wrapVector(d);
911      return d;    
912 +  }
913 +
914 +  Vector3d ForceMatrixDecomposition::getGroupVelocityColumn(int cg2){
915 + #ifdef IS_MPI
916 +    return cgColData.velocity[cg2];
917 + #else
918 +    return snap_->cgData.velocity[cg2];
919 + #endif
920 +  }
921 +
922 +  Vector3d ForceMatrixDecomposition::getAtomVelocityColumn(int atom2){
923 + #ifdef IS_MPI
924 +    return atomColData.velocity[atom2];
925 + #else
926 +    return snap_->atomData.velocity[atom2];
927 + #endif
928    }
929  
930  
# Line 950 | Line 1109 | namespace OpenMD {
1109        idat.skippedCharge2 = &(atomColData.skippedCharge[atom2]);
1110      }
1111  
1112 +    if (storageLayout_ & DataStorage::dslFlucQPosition) {              
1113 +      idat.flucQ1 = &(atomRowData.flucQPos[atom1]);
1114 +      idat.flucQ2 = &(atomColData.flucQPos[atom2]);
1115 +    }
1116 +
1117   #else
1118 +    
1119  
1120 +    // cerr << "atoms = " << atom1 << " " << atom2 << "\n";
1121 +    // cerr << "pos1 = " << snap_->atomData.position[atom1] << "\n";
1122 +    // cerr << "pos2 = " << snap_->atomData.position[atom2] << "\n";
1123 +
1124      idat.atypes = make_pair( atypesLocal[atom1], atypesLocal[atom2]);
1125      //idat.atypes = make_pair( ff_->getAtomType(idents[atom1]),
1126      //                         ff_->getAtomType(idents[atom2]) );
# Line 995 | Line 1164 | namespace OpenMD {
1164        idat.skippedCharge1 = &(snap_->atomData.skippedCharge[atom1]);
1165        idat.skippedCharge2 = &(snap_->atomData.skippedCharge[atom2]);
1166      }
1167 +
1168 +    if (storageLayout_ & DataStorage::dslFlucQPosition) {              
1169 +      idat.flucQ1 = &(snap_->atomData.flucQPos[atom1]);
1170 +      idat.flucQ2 = &(snap_->atomData.flucQPos[atom2]);
1171 +    }
1172 +
1173   #endif
1174    }
1175  
1176    
1177    void ForceMatrixDecomposition::unpackInteractionData(InteractionData &idat, int atom1, int atom2) {    
1178   #ifdef IS_MPI
1179 <    pot_row[atom1] += 0.5 *  *(idat.pot);
1180 <    pot_col[atom2] += 0.5 *  *(idat.pot);
1179 >    pot_row[atom1] += RealType(0.5) *  *(idat.pot);
1180 >    pot_col[atom2] += RealType(0.5) *  *(idat.pot);
1181  
1182      atomRowData.force[atom1] += *(idat.f1);
1183      atomColData.force[atom2] -= *(idat.f1);
1184 +
1185 +    if (storageLayout_ & DataStorage::dslFlucQForce) {              
1186 +      atomRowData.flucQFrc[atom1] -= *(idat.dVdFQ1);
1187 +      atomColData.flucQFrc[atom2] -= *(idat.dVdFQ2);
1188 +    }
1189 +
1190 +    if (storageLayout_ & DataStorage::dslElectricField) {              
1191 +      atomRowData.electricField[atom1] += *(idat.eField1);
1192 +      atomColData.electricField[atom2] += *(idat.eField2);
1193 +    }
1194 +
1195   #else
1196      pairwisePot += *(idat.pot);
1197  
1198      snap_->atomData.force[atom1] += *(idat.f1);
1199      snap_->atomData.force[atom2] -= *(idat.f1);
1200 +
1201 +    if (idat.doParticlePot) {
1202 +      // This is the pairwise contribution to the particle pot.  The
1203 +      // embedding contribution is added in each of the low level
1204 +      // non-bonded routines.  In parallel, this calculation is done
1205 +      // in collectData, not in unpackInteractionData.
1206 +      snap_->atomData.particlePot[atom1] += *(idat.vpair) * *(idat.sw);
1207 +      snap_->atomData.particlePot[atom2] += *(idat.vpair) * *(idat.sw);
1208 +    }
1209 +    
1210 +    if (storageLayout_ & DataStorage::dslFlucQForce) {              
1211 +      snap_->atomData.flucQFrc[atom1] -= *(idat.dVdFQ1);
1212 +      snap_->atomData.flucQFrc[atom2] -= *(idat.dVdFQ2);
1213 +    }
1214 +
1215 +    if (storageLayout_ & DataStorage::dslElectricField) {              
1216 +      snap_->atomData.electricField[atom1] += *(idat.eField1);
1217 +      snap_->atomData.electricField[atom2] += *(idat.eField2);
1218 +    }
1219 +
1220   #endif
1221      
1222    }

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