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root/OpenMD/trunk/src/parallel/ForceDecomposition.cpp
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Comparing trunk/src/parallel/ForceDecomposition.cpp (file contents):
Revision 1969 by gezelter, Wed Feb 26 14:14:50 2014 UTC vs.
Revision 2057 by gezelter, Tue Mar 3 15:22:26 2015 UTC

# Line 55 | Line 55 | namespace OpenMD {
55      sman_ = info_->getSnapshotManager();
56      storageLayout_ = sman_->getStorageLayout();
57      ff_ = info_->getForceField();
58    userChoseCutoff_ = false;
58  
59      usePeriodicBoundaryConditions_ = info->getSimParams()->getUsePeriodicBoundaryConditions();
60  
# Line 98 | Line 97 | namespace OpenMD {
97      cellOffsets_.push_back( Vector3i(1, -1,1) );
98    }
99  
100 +  void ForceDecomposition::setCutoffRadius(RealType rcut) {
101 +    rCut_ = rcut;
102 +    rList_ = rCut_ + skinThickness_;
103 +    rListSq_ = rList_ * rList_;
104 +  }
105 +
106    void ForceDecomposition::fillSelfData(SelfData &sdat, int atom1) {
107  
103    //sdat.atype = atypesLocal[atom1];
108      sdat.atid = idents[atom1];
109  
110      sdat.pot = &embeddingPot;
# Line 148 | Line 152 | namespace OpenMD {
152    }
153  
154    bool ForceDecomposition::checkNeighborList() {
155 <
155 >    RealType st2 = pow( skinThickness_ / 2.0, 2);
156      int nGroups = snap_->cgData.position.size();
157      if (needVelocities_)
158 <      snap_->cgData.setStorageLayout(DataStorage::dslPosition | DataStorage::dslVelocity);
158 >      snap_->cgData.setStorageLayout(DataStorage::dslPosition |
159 >                                     DataStorage::dslVelocity);
160      
161      // if we have changed the group identities or haven't set up the
162      // saved positions we automatically will need a neighbor list update:
163 <
163 >    
164      if ( saved_CG_positions_.size() != nGroups ) return true;
165  
166      RealType dispmax = 0.0;
# Line 163 | Line 168 | namespace OpenMD {
168  
169      for (int i = 0; i < nGroups; i++) {
170        disp = snap_->cgData.position[i]  - saved_CG_positions_[i];
171 <      for (int j = 0; j < 3; j++)
167 <        dispmax = max( abs(disp[j]), dispmax);
171 >      dispmax = max(dispmax, disp.lengthSquare());
172      }
173  
174   #ifdef IS_MPI
175 <    MPI_Allreduce(&dispmax, &dispmax, 1, MPI_REALTYPE, MPI_MAX, MPI_COMM_WORLD);
175 >    MPI_Allreduce(MPI_IN_PLACE, &dispmax, 1, MPI_REALTYPE, MPI_MAX,
176 >                  MPI_COMM_WORLD);
177   #endif
178  
179 <    // a conservative test of list skin crossings
175 <    dispmax = 2.0 * sqrt (3.0 * dispmax * dispmax);
176 <
177 <
178 <    if (dispmax > skinThickness_)
179 <      return (dispmax > skinThickness_);  
180 <
181 <    return false;
179 >    return (dispmax > st2) ? true : false;
180    }
181  
182    void ForceDecomposition::addToHeatFlux(Vector3d hf) {

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