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root/OpenMD/trunk/src/brains/ForceManager.cpp
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Comparing trunk/src/brains/ForceManager.cpp (file contents):
Revision 1879 by gezelter, Sun Jun 16 15:15:42 2013 UTC vs.
Revision 1925 by gezelter, Wed Aug 7 15:24:16 2013 UTC

# Line 99 | Line 99 | namespace OpenMD {
99     *      Use the maximum suggested value that was found.
100     *
101     * cutoffMethod : (one of HARD, SWITCHED, SHIFTED_FORCE, TAYLOR_SHIFTED,
102 <   *                        or SHIFTED_POTENTIAL)
102 >   *                        SHIFTED_POTENTIAL, or EWALD_FULL)
103     *      If cutoffMethod was explicitly set, use that choice.
104     *      If cutoffMethod was not explicitly set, use SHIFTED_FORCE
105     *
# Line 172 | Line 172 | namespace OpenMD {
172      stringToCutoffMethod["SHIFTED_POTENTIAL"] = SHIFTED_POTENTIAL;    
173      stringToCutoffMethod["SHIFTED_FORCE"] = SHIFTED_FORCE;
174      stringToCutoffMethod["TAYLOR_SHIFTED"] = TAYLOR_SHIFTED;
175 +    stringToCutoffMethod["EWALD_FULL"] = EWALD_FULL;
176    
177      if (simParams_->haveCutoffMethod()) {
178        string cutMeth = toUpperCopy(simParams_->getCutoffMethod());
# Line 182 | Line 183 | namespace OpenMD {
183                  "ForceManager::setupCutoffs: Could not find chosen cutoffMethod %s\n"
184                  "\tShould be one of: "
185                  "HARD, SWITCHED, SHIFTED_POTENTIAL, TAYLOR_SHIFTED,\n"
186 <                "\tor SHIFTED_FORCE\n",
186 >                "\tSHIFTED_FORCE, or EWALD_FULL\n",
187                  cutMeth.c_str());
188          painCave.isFatal = 1;
189          painCave.severity = OPENMD_ERROR;
# Line 228 | Line 229 | namespace OpenMD {
229              cutoffMethod_ = SHIFTED_FORCE;
230            } else if (myMethod == "TAYLOR_SHIFTED") {
231              cutoffMethod_ = TAYLOR_SHIFTED;
232 +          } else if (myMethod == "EWALD_FULL") {
233 +            cutoffMethod_ = EWALD_FULL;
234            }
235          
236            if (simParams_->haveSwitchingRadius())
237              rSwitch_ = simParams_->getSwitchingRadius();
238  
239            if (myMethod == "SHIFTED_POTENTIAL" || myMethod == "SHIFTED_FORCE" ||
240 <              myMethod == "TAYLOR_SHIFTED") {
240 >              myMethod == "TAYLOR_SHIFTED" || myMethod == "EWALD_FULL") {
241              if (simParams_->haveSwitchingRadius()){
242                sprintf(painCave.errMsg,
243                        "ForceManager::setupCutoffs : DEPRECATED ERROR MESSAGE\n"
# Line 663 | Line 666 | namespace OpenMD {
666      DataStorage* config = &(curSnapshot->atomData);
667      DataStorage* cgConfig = &(curSnapshot->cgData);
668  
669 +
670      //calculate the center of mass of cutoff group
671  
672      SimInfo::MoleculeIterator mi;
# Line 695 | Line 699 | namespace OpenMD {
699      RealType vij;
700      Vector3d fij, fg, f1;
701      tuple3<RealType, RealType, RealType> cuts;
702 <    RealType rCutSq;
702 >    RealType rCut, rCutSq, rListSq;
703      bool in_switching_region;
704      RealType sw, dswdr, swderiv;
705      vector<int> atomListColumn, atomListRow;
# Line 705 | Line 709 | namespace OpenMD {
709      RealType vpair;
710      RealType dVdFQ1(0.0);
711      RealType dVdFQ2(0.0);
708    Vector3d eField1(0.0);
709    Vector3d eField2(0.0);
712      potVec longRangePotential(0.0);
713 +    RealType reciprocalPotential(0.0);
714      potVec workPot(0.0);
715      potVec exPot(0.0);
716 +    Vector3d eField1(0.0);
717 +    Vector3d eField2(0.0);
718      vector<int>::iterator ia, jb;
719  
720      int loopStart, loopEnd;
721 <
721 >    
722 >    idat.rcut = &rCut;
723      idat.vdwMult = &vdwMult;
724      idat.electroMult = &electroMult;
725      idat.pot = &workPot;
# Line 746 | Line 752 | namespace OpenMD {
752          if (update_nlist) {
753            if (!usePeriodicBoundaryConditions_)
754              Mat3x3d bbox = thermo->getBoundingBox();
755 <          neighborList = fDecomp_->buildNeighborList();
755 >          fDecomp_->buildNeighborList(neighborList_);
756          }
757        }
758  
759 <      for (vector<pair<int, int> >::iterator it = neighborList.begin();
760 <             it != neighborList.end(); ++it) {
759 >      for (vector<pair<int, int> >::iterator it = neighborList_.begin();
760 >             it != neighborList_.end(); ++it) {
761                  
762          cg1 = (*it).first;
763          cg2 = (*it).second;
764          
765 <        cuts = fDecomp_->getGroupCutoffs(cg1, cg2);
765 >        fDecomp_->getGroupCutoffs(cg1, cg2, rCut, rCutSq, rListSq);
766  
767          d_grp  = fDecomp_->getIntergroupVector(cg1, cg2);
768  
769 <        curSnapshot->wrapVector(d_grp);        
769 >        // already wrapped in the getIntergroupVector call:
770 >        // curSnapshot->wrapVector(d_grp);        
771          rgrpsq = d_grp.lengthSquare();
765        rCutSq = cuts.second;
772  
773          if (rgrpsq < rCutSq) {
768          idat.rcut = &cuts.first;
774            if (iLoop == PAIR_LOOP) {
775              vij = 0.0;
776              fij.zero();
# Line 822 | Line 827 | namespace OpenMD {
827                
828                  r = sqrt( *(idat.r2) );
829                  idat.rij = &r;
830 <              
830 >
831                  if (iLoop == PREPAIR_LOOP) {
832                    interactionMan_->doPrePair(idat);
833                  } else {
# Line 918 | Line 923 | namespace OpenMD {
923          }
924        }
925      }
926 <  
926 >    
927      // collects pairwise information
928      fDecomp_->collectData();
929 +    if (cutoffMethod_ == EWALD_FULL) {
930 +      interactionMan_->doReciprocalSpaceSum(reciprocalPotential);
931 +
932 +      curSnapshot->setReciprocalPotential(reciprocalPotential);
933 +    }
934          
935      if (info_->requiresSelfCorrection()) {
936        for (unsigned int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) {
# Line 942 | Line 952 | namespace OpenMD {
952  
953    }
954  
945  
955    void ForceManager::postCalculation() {
956  
957      vector<Perturbation*>::iterator pi;

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