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root/OpenMD/branches/development/src/parallel/ForceMatrixDecomposition.cpp
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Comparing branches/development/src/parallel/ForceMatrixDecomposition.cpp (file contents):
Revision 1855 by gezelter, Tue Apr 2 18:31:51 2013 UTC vs.
Revision 1856 by gezelter, Tue Apr 2 21:30:34 2013 UTC

# Line 975 | Line 975 | namespace OpenMD {
975      d = snap_->cgData.position[cg2] - snap_->cgData.position[cg1];
976   #endif
977      
978 <    snap_->wrapVector(d);
978 >    if (usePeriodicBoundaryConditions_) {
979 >      snap_->wrapVector(d);
980 >    }
981      return d;    
982    }
983  
# Line 1005 | Line 1007 | namespace OpenMD {
1007   #else
1008      d = snap_->cgData.position[cg1] - snap_->atomData.position[atom1];
1009   #endif
1010 <
1011 <    snap_->wrapVector(d);
1010 >    if (usePeriodicBoundaryConditions_) {
1011 >      snap_->wrapVector(d);
1012 >    }
1013      return d;    
1014    }
1015    
# Line 1018 | Line 1021 | namespace OpenMD {
1021   #else
1022      d = snap_->cgData.position[cg2] - snap_->atomData.position[atom2];
1023   #endif
1024 <    
1025 <    snap_->wrapVector(d);
1024 >    if (usePeriodicBoundaryConditions_) {
1025 >      snap_->wrapVector(d);
1026 >    }
1027      return d;    
1028    }
1029  
# Line 1048 | Line 1052 | namespace OpenMD {
1052   #else
1053      d = snap_->atomData.position[atom2] - snap_->atomData.position[atom1];
1054   #endif
1055 <
1056 <    snap_->wrapVector(d);
1055 >    if (usePeriodicBoundaryConditions_) {
1056 >      snap_->wrapVector(d);
1057 >    }
1058      return d;    
1059    }
1060  
# Line 1316 | Line 1321 | namespace OpenMD {
1321      vector<pair<int, int> > neighborList;
1322      groupCutoffs cuts;
1323      bool doAllPairs = false;
1319 –
1320 – #ifdef IS_MPI
1321 –    cellListRow_.clear();
1322 –    cellListCol_.clear();
1323 – #else
1324 –    cellList_.clear();
1325 – #endif
1324  
1325      RealType rList_ = (largestRcut_ + skinThickness_);
1326      Snapshot* snap_ = sman_->getCurrentSnapshot();
1329 –    Mat3x3d Hmat = snap_->getHmat();
1330 –    Vector3d Hx = Hmat.getColumn(0);
1331 –    Vector3d Hy = Hmat.getColumn(1);
1332 –    Vector3d Hz = Hmat.getColumn(2);
1333 –
1334 –    nCells_.x() = (int) ( Hx.length() )/ rList_;
1335 –    nCells_.y() = (int) ( Hy.length() )/ rList_;
1336 –    nCells_.z() = (int) ( Hz.length() )/ rList_;
1337 –
1338 –    // handle small boxes where the cell offsets can end up repeating cells
1339 –    
1340 –    if (nCells_.x() < 3) doAllPairs = true;
1341 –    if (nCells_.y() < 3) doAllPairs = true;
1342 –    if (nCells_.z() < 3) doAllPairs = true;
1343 –
1327      Mat3x3d invHmat = snap_->getInvHmat();
1328      Vector3d rs, scaled, dr;
1329      Vector3i whichCell;
1330      int cellIndex;
1348 –    int nCtot = nCells_.x() * nCells_.y() * nCells_.z();
1331  
1332   #ifdef IS_MPI
1333 <    cellListRow_.resize(nCtot);
1334 <    cellListCol_.resize(nCtot);
1333 >    cellListRow_.clear();
1334 >    cellListCol_.clear();
1335   #else
1336 <    cellList_.resize(nCtot);
1336 >    cellList_.clear();
1337   #endif
1338  
1339 +    if (!usePeriodicBoundaryConditions_) {
1340 +      doAllPairs = true;
1341 +    } else {
1342 +
1343 +      Mat3x3d Hmat = snap_->getHmat();
1344 +      Vector3d Hx = Hmat.getColumn(0);
1345 +      Vector3d Hy = Hmat.getColumn(1);
1346 +      Vector3d Hz = Hmat.getColumn(2);
1347 +
1348 +      nCells_.x() = (int) ( Hx.length() )/ rList_;
1349 +      nCells_.y() = (int) ( Hy.length() )/ rList_;
1350 +      nCells_.z() = (int) ( Hz.length() )/ rList_;
1351 +      
1352 +      // handle small boxes where the cell offsets can end up repeating cells
1353 +      
1354 +      if (nCells_.x() < 3) doAllPairs = true;
1355 +      if (nCells_.y() < 3) doAllPairs = true;
1356 +      if (nCells_.z() < 3) doAllPairs = true;
1357 +      
1358 +      int nCtot = nCells_.x() * nCells_.y() * nCells_.z();
1359 +      
1360 + #ifdef IS_MPI
1361 +      cellListRow_.resize(nCtot);
1362 +      cellListCol_.resize(nCtot);
1363 + #else
1364 +      cellList_.resize(nCtot);
1365 + #endif
1366 +    }
1367 +
1368      if (!doAllPairs) {
1369   #ifdef IS_MPI
1370  
# Line 1488 | Line 1499 | namespace OpenMD {
1499                    // & column indicies and will divide labor in the
1500                    // force evaluation later.
1501                    dr = cgColData.position[(*j2)] - cgRowData.position[(*j1)];
1502 <                  snap_->wrapVector(dr);
1502 >                  if (usePeriodicBoundaryConditions_) {
1503 >                    snap_->wrapVector(dr);
1504 >                  }
1505                    cuts = getGroupCutoffs( (*j1), (*j2) );
1506                    if (dr.lengthSquare() < cuts.third) {
1507                      neighborList.push_back(make_pair((*j1), (*j2)));
# Line 1515 | Line 1528 | namespace OpenMD {
1528                    if (m2 != m1 || (*j2) >= (*j1) ) {
1529  
1530                      dr = snap_->cgData.position[(*j2)] - snap_->cgData.position[(*j1)];
1531 <                    snap_->wrapVector(dr);
1531 >                    if (usePeriodicBoundaryConditions_) {
1532 >                      snap_->wrapVector(dr);
1533 >                    }
1534                      cuts = getGroupCutoffs( (*j1), (*j2) );
1535                      if (dr.lengthSquare() < cuts.third) {
1536                        neighborList.push_back(make_pair((*j1), (*j2)));
# Line 1534 | Line 1549 | namespace OpenMD {
1549        for (int j1 = 0; j1 < nGroupsInRow_; j1++) {
1550          for (int j2 = 0; j2 < nGroupsInCol_; j2++) {    
1551            dr = cgColData.position[j2] - cgRowData.position[j1];
1552 <          snap_->wrapVector(dr);
1552 >          if (usePeriodicBoundaryConditions_) {
1553 >            snap_->wrapVector(dr);
1554 >          }
1555            cuts = getGroupCutoffs( j1, j2 );
1556            if (dr.lengthSquare() < cuts.third) {
1557              neighborList.push_back(make_pair(j1, j2));
# Line 1547 | Line 1564 | namespace OpenMD {
1564          // include self group interactions j2 == j1
1565          for (int j2 = j1; j2 < nGroups_; j2++) {
1566            dr = snap_->cgData.position[j2] - snap_->cgData.position[j1];
1567 <          snap_->wrapVector(dr);
1567 >          if (usePeriodicBoundaryConditions_) {
1568 >            snap_->wrapVector(dr);
1569 >          }
1570            cuts = getGroupCutoffs( j1, j2 );
1571            if (dr.lengthSquare() < cuts.third) {
1572              neighborList.push_back(make_pair(j1, j2));

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