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Comparing branches/development/src/brains/SimInfo.cpp (file contents):
Revision 1586 by gezelter, Tue Jun 21 06:34:35 2011 UTC vs.
Revision 1779 by gezelter, Mon Aug 20 17:51:39 2012 UTC

# Line 36 | Line 36
36   * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).            
37   * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
38   * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).          
39 < * [4]  Vardeman & Gezelter, in progress (2009).                        
39 > * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
40 > * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41   */
42  
43   /**
# Line 58 | Line 59
59   #include "utils/simError.h"
60   #include "selection/SelectionManager.hpp"
61   #include "io/ForceFieldOptions.hpp"
62 < #include "UseTheForce/ForceField.hpp"
62 > #include "brains/ForceField.hpp"
63   #include "nonbonded/SwitchingFunction.hpp"
64 + #ifdef IS_MPI
65 + #include <mpi.h>
66 + #endif
67  
68   using namespace std;
69   namespace OpenMD {
# Line 68 | Line 72 | namespace OpenMD {
72      forceField_(ff), simParams_(simParams),
73      ndf_(0), fdf_local(0), ndfRaw_(0), ndfTrans_(0), nZconstraint_(0),
74      nGlobalMols_(0), nGlobalAtoms_(0), nGlobalCutoffGroups_(0),
75 <    nGlobalIntegrableObjects_(0), nGlobalRigidBodies_(0),
75 >    nGlobalIntegrableObjects_(0), nGlobalRigidBodies_(0), nGlobalFluctuatingCharges_(0),
76      nAtoms_(0), nBonds_(0),  nBends_(0), nTorsions_(0), nInversions_(0),
77      nRigidBodies_(0), nIntegrableObjects_(0), nCutoffGroups_(0),
78 <    nConstraints_(0), sman_(NULL), topologyDone_(false),
78 >    nConstraints_(0), nFluctuatingCharges_(0), sman_(NULL), topologyDone_(false),
79      calcBoxDipole_(false), useAtomicVirial_(true) {    
80      
81      MoleculeStamp* molStamp;
# Line 84 | Line 88 | namespace OpenMD {
88      
89      vector<Component*> components = simParams->getComponents();
90      
91 <    for (vector<Component*>::iterator i = components.begin(); i !=components.end(); ++i) {
91 >    for (vector<Component*>::iterator i = components.begin();
92 >         i !=components.end(); ++i) {
93        molStamp = (*i)->getMoleculeStamp();
94        nMolWithSameStamp = (*i)->getNMol();
95        
# Line 221 | Line 226 | namespace OpenMD {
226  
227  
228    void SimInfo::calcNdf() {
229 <    int ndf_local;
229 >    int ndf_local, nfq_local;
230      MoleculeIterator i;
231      vector<StuntDouble*>::iterator j;
232 +    vector<Atom*>::iterator k;
233 +
234      Molecule* mol;
235 <    StuntDouble* integrableObject;
235 >    StuntDouble* sd;
236 >    Atom* atom;
237  
238      ndf_local = 0;
239 +    nfq_local = 0;
240      
241      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
233      for (integrableObject = mol->beginIntegrableObject(j); integrableObject != NULL;
234           integrableObject = mol->nextIntegrableObject(j)) {
242  
243 +      for (sd = mol->beginIntegrableObject(j); sd != NULL;
244 +           sd = mol->nextIntegrableObject(j)) {
245 +
246          ndf_local += 3;
247  
248 <        if (integrableObject->isDirectional()) {
249 <          if (integrableObject->isLinear()) {
248 >        if (sd->isDirectional()) {
249 >          if (sd->isLinear()) {
250              ndf_local += 2;
251            } else {
252              ndf_local += 3;
253            }
254          }
245            
255        }
256 +
257 +      for (atom = mol->beginFluctuatingCharge(k); atom != NULL;
258 +           atom = mol->nextFluctuatingCharge(k)) {
259 +        if (atom->isFluctuatingCharge()) {
260 +          nfq_local++;
261 +        }
262 +      }
263      }
264      
265 +    ndfLocal_ = ndf_local;
266 +
267      // n_constraints is local, so subtract them on each processor
268      ndf_local -= nConstraints_;
269  
270   #ifdef IS_MPI
271      MPI_Allreduce(&ndf_local,&ndf_,1,MPI_INT,MPI_SUM, MPI_COMM_WORLD);
272 +    MPI_Allreduce(&nfq_local,&nGlobalFluctuatingCharges_,1, MPI_INT, MPI_SUM, MPI_COMM_WORLD);
273   #else
274      ndf_ = ndf_local;
275 +    nGlobalFluctuatingCharges_ = nfq_local;
276   #endif
277  
278      // nZconstraints_ is global, as are the 3 COM translations for the
# Line 295 | Line 315 | namespace OpenMD {
315      MoleculeIterator i;
316      vector<StuntDouble*>::iterator j;
317      Molecule* mol;
318 <    StuntDouble* integrableObject;
318 >    StuntDouble* sd;
319  
320      // Raw degrees of freedom that we have to set
321      ndfRaw_local = 0;
322      
323      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
304      for (integrableObject = mol->beginIntegrableObject(j); integrableObject != NULL;
305           integrableObject = mol->nextIntegrableObject(j)) {
324  
325 +      for (sd = mol->beginIntegrableObject(j); sd != NULL;
326 +           sd = mol->nextIntegrableObject(j)) {
327 +
328          ndfRaw_local += 3;
329  
330 <        if (integrableObject->isDirectional()) {
331 <          if (integrableObject->isLinear()) {
330 >        if (sd->isDirectional()) {
331 >          if (sd->isLinear()) {
332              ndfRaw_local += 2;
333            } else {
334              ndfRaw_local += 3;
# Line 367 | Line 388 | namespace OpenMD {
388      Molecule::RigidBodyIterator rbIter;
389      RigidBody* rb;
390      Molecule::IntegrableObjectIterator ii;
391 <    StuntDouble* integrableObject;
392 <    
393 <    for (integrableObject = mol->beginIntegrableObject(ii);
394 <         integrableObject != NULL;
374 <         integrableObject = mol->nextIntegrableObject(ii)) {
391 >    StuntDouble* sd;
392 >    
393 >    for (sd = mol->beginIntegrableObject(ii); sd != NULL;
394 >         sd = mol->nextIntegrableObject(ii)) {
395        
396 <      if (integrableObject->isRigidBody()) {
397 <        rb = static_cast<RigidBody*>(integrableObject);
396 >      if (sd->isRigidBody()) {
397 >        rb = static_cast<RigidBody*>(sd);
398          vector<Atom*> atoms = rb->getAtoms();
399          set<int> rigidAtoms;
400          for (int i = 0; i < static_cast<int>(atoms.size()); ++i) {
# Line 385 | Line 405 | namespace OpenMD {
405          }      
406        } else {
407          set<int> oneAtomSet;
408 <        oneAtomSet.insert(integrableObject->getGlobalIndex());
409 <        atomGroups.insert(map<int, set<int> >::value_type(integrableObject->getGlobalIndex(), oneAtomSet));        
408 >        oneAtomSet.insert(sd->getGlobalIndex());
409 >        atomGroups.insert(map<int, set<int> >::value_type(sd->getGlobalIndex(), oneAtomSet));        
410        }
411      }  
412            
# Line 520 | Line 540 | namespace OpenMD {
540      Molecule::RigidBodyIterator rbIter;
541      RigidBody* rb;
542      Molecule::IntegrableObjectIterator ii;
543 <    StuntDouble* integrableObject;
543 >    StuntDouble* sd;
544      
545 <    for (integrableObject = mol->beginIntegrableObject(ii);
546 <         integrableObject != NULL;
527 <         integrableObject = mol->nextIntegrableObject(ii)) {
545 >    for (sd = mol->beginIntegrableObject(ii); sd != NULL;
546 >         sd = mol->nextIntegrableObject(ii)) {
547        
548 <      if (integrableObject->isRigidBody()) {
549 <        rb = static_cast<RigidBody*>(integrableObject);
548 >      if (sd->isRigidBody()) {
549 >        rb = static_cast<RigidBody*>(sd);
550          vector<Atom*> atoms = rb->getAtoms();
551          set<int> rigidAtoms;
552          for (int i = 0; i < static_cast<int>(atoms.size()); ++i) {
# Line 538 | Line 557 | namespace OpenMD {
557          }      
558        } else {
559          set<int> oneAtomSet;
560 <        oneAtomSet.insert(integrableObject->getGlobalIndex());
561 <        atomGroups.insert(map<int, set<int> >::value_type(integrableObject->getGlobalIndex(), oneAtomSet));        
560 >        oneAtomSet.insert(sd->getGlobalIndex());
561 >        atomGroups.insert(map<int, set<int> >::value_type(sd->getGlobalIndex(), oneAtomSet));        
562        }
563      }  
564  
# Line 694 | Line 713 | namespace OpenMD {
713      Atom* atom;
714      set<AtomType*> atomTypes;
715      
716 <    for(mol = beginMolecule(mi); mol != NULL; mol = nextMolecule(mi)) {      
717 <      for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
716 >    for(mol = beginMolecule(mi); mol != NULL; mol = nextMolecule(mi)) {
717 >      for(atom = mol->beginAtom(ai); atom != NULL;
718 >          atom = mol->nextAtom(ai)) {
719          atomTypes.insert(atom->getAtomType());
720        }      
721      }    
722 <
722 >    
723   #ifdef IS_MPI
724  
725      // loop over the found atom types on this processor, and add their
726      // numerical idents to a vector:
727 <
727 >    
728      vector<int> foundTypes;
729      set<AtomType*>::iterator i;
730      for (i = atomTypes.begin(); i != atomTypes.end(); ++i)
# Line 713 | Line 733 | namespace OpenMD {
733      // count_local holds the number of found types on this processor
734      int count_local = foundTypes.size();
735  
716    // count holds the total number of found types on all processors
717    // (some will be redundant with the ones found locally):
718    int count;
719    MPI::COMM_WORLD.Allreduce(&count_local, &count, 1, MPI::INT, MPI::SUM);
720
721    // create a vector to hold the globally found types, and resize it:
722    vector<int> ftGlobal;
723    ftGlobal.resize(count);
724    vector<int> counts;
725
736      int nproc = MPI::COMM_WORLD.Get_size();
727    counts.resize(nproc);
728    vector<int> disps;
729    disps.resize(nproc);
737  
738 <    // now spray out the foundTypes to all the other processors:
738 >    // we need arrays to hold the counts and displacement vectors for
739 >    // all processors
740 >    vector<int> counts(nproc, 0);
741 >    vector<int> disps(nproc, 0);
742 >
743 >    // fill the counts array
744 >    MPI::COMM_WORLD.Allgather(&count_local, 1, MPI::INT, &counts[0],
745 >                              1, MPI::INT);
746 >  
747 >    // use the processor counts to compute the displacement array
748 >    disps[0] = 0;    
749 >    int totalCount = counts[0];
750 >    for (int iproc = 1; iproc < nproc; iproc++) {
751 >      disps[iproc] = disps[iproc-1] + counts[iproc-1];
752 >      totalCount += counts[iproc];
753 >    }
754 >
755 >    // we need a (possibly redundant) set of all found types:
756 >    vector<int> ftGlobal(totalCount);
757      
758 +    // now spray out the foundTypes to all the other processors:    
759      MPI::COMM_WORLD.Allgatherv(&foundTypes[0], count_local, MPI::INT,
760 <                               &ftGlobal[0], &counts[0], &disps[0], MPI::INT);
760 >                               &ftGlobal[0], &counts[0], &disps[0],
761 >                               MPI::INT);
762  
763 +    vector<int>::iterator j;
764 +
765      // foundIdents is a stl set, so inserting an already found ident
766      // will have no effect.
767      set<int> foundIdents;
768 <    vector<int>::iterator j;
768 >
769      for (j = ftGlobal.begin(); j != ftGlobal.end(); ++j)
770        foundIdents.insert((*j));
771      
772      // now iterate over the foundIdents and get the actual atom types
773      // that correspond to these:
774      set<int>::iterator it;
775 <    for (it = foundIdents.begin(); it != foundIdents.end(); ++it)
775 >    for (it = foundIdents.begin(); it != foundIdents.end(); ++it)
776        atomTypes.insert( forceField_->getAtomType((*it)) );
777  
778   #endif
779 <    
779 >
780      return atomTypes;        
781    }
782  
783    void SimInfo::setupSimVariables() {
784      useAtomicVirial_ = simParams_->getUseAtomicVirial();
785 <    // we only call setAccumulateBoxDipole if the accumulateBoxDipole parameter is true
785 >    // we only call setAccumulateBoxDipole if the accumulateBoxDipole
786 >    // parameter is true
787      calcBoxDipole_ = false;
788      if ( simParams_->haveAccumulateBoxDipole() )
789        if ( simParams_->getAccumulateBoxDipole() ) {
# Line 763 | Line 793 | namespace OpenMD {
793      set<AtomType*>::iterator i;
794      set<AtomType*> atomTypes;
795      atomTypes = getSimulatedAtomTypes();    
796 <    int usesElectrostatic = 0;
797 <    int usesMetallic = 0;
798 <    int usesDirectional = 0;
796 >    bool usesElectrostatic = false;
797 >    bool usesMetallic = false;
798 >    bool usesDirectional = false;
799 >    bool usesFluctuatingCharges =  false;
800      //loop over all of the atom types
801      for (i = atomTypes.begin(); i != atomTypes.end(); ++i) {
802        usesElectrostatic |= (*i)->isElectrostatic();
803        usesMetallic |= (*i)->isMetal();
804        usesDirectional |= (*i)->isDirectional();
805 +      usesFluctuatingCharges |= (*i)->isFluctuatingCharge();
806      }
807 <    
808 < #ifdef IS_MPI    
809 <    int temp;
807 >
808 > #ifdef IS_MPI
809 >    bool temp;
810      temp = usesDirectional;
811 <    MPI_Allreduce(&temp, &usesDirectionalAtoms_, 1, MPI_INT, MPI_LOR, MPI_COMM_WORLD);    
812 <    
811 >    MPI::COMM_WORLD.Allreduce(&temp, &usesDirectionalAtoms_, 1, MPI::BOOL,
812 >                              MPI::LOR);
813 >        
814      temp = usesMetallic;
815 <    MPI_Allreduce(&temp, &usesMetallicAtoms_, 1, MPI_INT, MPI_LOR, MPI_COMM_WORLD);    
815 >    MPI::COMM_WORLD.Allreduce(&temp, &usesMetallicAtoms_, 1, MPI::BOOL,
816 >                              MPI::LOR);
817      
818      temp = usesElectrostatic;
819 <    MPI_Allreduce(&temp, &usesElectrostaticAtoms_, 1, MPI_INT, MPI_LOR, MPI_COMM_WORLD);
819 >    MPI::COMM_WORLD.Allreduce(&temp, &usesElectrostaticAtoms_, 1, MPI::BOOL,
820 >                              MPI::LOR);
821 >
822 >    temp = usesFluctuatingCharges;
823 >    MPI::COMM_WORLD.Allreduce(&temp, &usesFluctuatingCharges_, 1, MPI::BOOL,
824 >                              MPI::LOR);
825   #else
826  
827      usesDirectionalAtoms_ = usesDirectional;
828      usesMetallicAtoms_ = usesMetallic;
829      usesElectrostaticAtoms_ = usesElectrostatic;
830 +    usesFluctuatingCharges_ = usesFluctuatingCharges;
831  
832   #endif
833      
# Line 859 | Line 899 | namespace OpenMD {
899      massFactors_.clear();
900      massFactors_.resize(getNAtoms(), 1.0);
901      
862    cerr << "mfs in si = " << massFactors_.size() << "\n";
902      for(mol = beginMolecule(mi); mol != NULL; mol = nextMolecule(mi)) {        
903        for (cg = mol->beginCutoffGroup(ci); cg != NULL;
904             cg = mol->nextCutoffGroup(ci)) {
# Line 942 | Line 981 | namespace OpenMD {
981  
982      for (mol = beginMolecule(mi); mol != NULL; mol = nextMolecule(mi)) {
983          
984 <      for (atom = mol->beginAtom(atomIter); atom != NULL; atom = mol->nextAtom(atomIter)) {
984 >      for (atom = mol->beginAtom(atomIter); atom != NULL;
985 >           atom = mol->nextAtom(atomIter)) {
986          atom->setSnapshotManager(sman_);
987        }
988          
989 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
989 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
990 >           rb = mol->nextRigidBody(rbIter)) {
991          rb->setSnapshotManager(sman_);
992        }
993  
994 <      for (cg = mol->beginCutoffGroup(cgIter); cg != NULL; cg = mol->nextCutoffGroup(cgIter)) {
994 >      for (cg = mol->beginCutoffGroup(cgIter); cg != NULL;
995 >           cg = mol->nextCutoffGroup(cgIter)) {
996          cg->setSnapshotManager(sman_);
997        }
998      }    
999      
1000    }
1001  
960  Vector3d SimInfo::getComVel(){
961    SimInfo::MoleculeIterator i;
962    Molecule* mol;
1002  
964    Vector3d comVel(0.0);
965    RealType totalMass = 0.0;
966    
967
968    for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
969      RealType mass = mol->getMass();
970      totalMass += mass;
971      comVel += mass * mol->getComVel();
972    }  
973
974 #ifdef IS_MPI
975    RealType tmpMass = totalMass;
976    Vector3d tmpComVel(comVel);    
977    MPI_Allreduce(&tmpMass,&totalMass,1,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
978    MPI_Allreduce(tmpComVel.getArrayPointer(), comVel.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
979 #endif
980
981    comVel /= totalMass;
982
983    return comVel;
984  }
985
986  Vector3d SimInfo::getCom(){
987    SimInfo::MoleculeIterator i;
988    Molecule* mol;
989
990    Vector3d com(0.0);
991    RealType totalMass = 0.0;
992    
993    for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
994      RealType mass = mol->getMass();
995      totalMass += mass;
996      com += mass * mol->getCom();
997    }  
998
999 #ifdef IS_MPI
1000    RealType tmpMass = totalMass;
1001    Vector3d tmpCom(com);    
1002    MPI_Allreduce(&tmpMass,&totalMass,1,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1003    MPI_Allreduce(tmpCom.getArrayPointer(), com.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1004 #endif
1005
1006    com /= totalMass;
1007
1008    return com;
1009
1010  }        
1011
1003    ostream& operator <<(ostream& o, SimInfo& info) {
1004  
1005      return o;
1006    }
1007    
1008 <  
1018 <   /*
1019 <   Returns center of mass and center of mass velocity in one function call.
1020 <   */
1021 <  
1022 <   void SimInfo::getComAll(Vector3d &com, Vector3d &comVel){
1023 <      SimInfo::MoleculeIterator i;
1024 <      Molecule* mol;
1025 <      
1026 <    
1027 <      RealType totalMass = 0.0;
1028 <    
1029 <
1030 <      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
1031 <         RealType mass = mol->getMass();
1032 <         totalMass += mass;
1033 <         com += mass * mol->getCom();
1034 <         comVel += mass * mol->getComVel();          
1035 <      }  
1036 <      
1037 < #ifdef IS_MPI
1038 <      RealType tmpMass = totalMass;
1039 <      Vector3d tmpCom(com);  
1040 <      Vector3d tmpComVel(comVel);
1041 <      MPI_Allreduce(&tmpMass,&totalMass,1,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1042 <      MPI_Allreduce(tmpCom.getArrayPointer(), com.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1043 <      MPI_Allreduce(tmpComVel.getArrayPointer(), comVel.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1044 < #endif
1045 <      
1046 <      com /= totalMass;
1047 <      comVel /= totalMass;
1048 <   }        
1049 <  
1050 <   /*
1051 <   Return intertia tensor for entire system and angular momentum Vector.
1052 <
1053 <
1054 <       [  Ixx -Ixy  -Ixz ]
1055 <    J =| -Iyx  Iyy  -Iyz |
1056 <       [ -Izx -Iyz   Izz ]
1057 <    */
1058 <
1059 <   void SimInfo::getInertiaTensor(Mat3x3d &inertiaTensor, Vector3d &angularMomentum){
1060 <      
1061 <
1062 <      RealType xx = 0.0;
1063 <      RealType yy = 0.0;
1064 <      RealType zz = 0.0;
1065 <      RealType xy = 0.0;
1066 <      RealType xz = 0.0;
1067 <      RealType yz = 0.0;
1068 <      Vector3d com(0.0);
1069 <      Vector3d comVel(0.0);
1070 <      
1071 <      getComAll(com, comVel);
1072 <      
1073 <      SimInfo::MoleculeIterator i;
1074 <      Molecule* mol;
1075 <      
1076 <      Vector3d thisq(0.0);
1077 <      Vector3d thisv(0.0);
1078 <
1079 <      RealType thisMass = 0.0;
1080 <    
1081 <      
1082 <      
1083 <  
1084 <      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
1085 <        
1086 <         thisq = mol->getCom()-com;
1087 <         thisv = mol->getComVel()-comVel;
1088 <         thisMass = mol->getMass();
1089 <         // Compute moment of intertia coefficients.
1090 <         xx += thisq[0]*thisq[0]*thisMass;
1091 <         yy += thisq[1]*thisq[1]*thisMass;
1092 <         zz += thisq[2]*thisq[2]*thisMass;
1093 <        
1094 <         // compute products of intertia
1095 <         xy += thisq[0]*thisq[1]*thisMass;
1096 <         xz += thisq[0]*thisq[2]*thisMass;
1097 <         yz += thisq[1]*thisq[2]*thisMass;
1098 <            
1099 <         angularMomentum += cross( thisq, thisv ) * thisMass;
1100 <            
1101 <      }  
1102 <      
1103 <      
1104 <      inertiaTensor(0,0) = yy + zz;
1105 <      inertiaTensor(0,1) = -xy;
1106 <      inertiaTensor(0,2) = -xz;
1107 <      inertiaTensor(1,0) = -xy;
1108 <      inertiaTensor(1,1) = xx + zz;
1109 <      inertiaTensor(1,2) = -yz;
1110 <      inertiaTensor(2,0) = -xz;
1111 <      inertiaTensor(2,1) = -yz;
1112 <      inertiaTensor(2,2) = xx + yy;
1113 <      
1114 < #ifdef IS_MPI
1115 <      Mat3x3d tmpI(inertiaTensor);
1116 <      Vector3d tmpAngMom;
1117 <      MPI_Allreduce(tmpI.getArrayPointer(), inertiaTensor.getArrayPointer(),9,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1118 <      MPI_Allreduce(tmpAngMom.getArrayPointer(), angularMomentum.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1119 < #endif
1120 <              
1121 <      return;
1122 <   }
1123 <
1124 <   //Returns the angular momentum of the system
1125 <   Vector3d SimInfo::getAngularMomentum(){
1126 <      
1127 <      Vector3d com(0.0);
1128 <      Vector3d comVel(0.0);
1129 <      Vector3d angularMomentum(0.0);
1130 <      
1131 <      getComAll(com,comVel);
1132 <      
1133 <      SimInfo::MoleculeIterator i;
1134 <      Molecule* mol;
1135 <      
1136 <      Vector3d thisr(0.0);
1137 <      Vector3d thisp(0.0);
1138 <      
1139 <      RealType thisMass;
1140 <      
1141 <      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {        
1142 <        thisMass = mol->getMass();
1143 <        thisr = mol->getCom()-com;
1144 <        thisp = (mol->getComVel()-comVel)*thisMass;
1145 <        
1146 <        angularMomentum += cross( thisr, thisp );
1147 <        
1148 <      }  
1149 <      
1150 < #ifdef IS_MPI
1151 <      Vector3d tmpAngMom;
1152 <      MPI_Allreduce(tmpAngMom.getArrayPointer(), angularMomentum.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1153 < #endif
1154 <      
1155 <      return angularMomentum;
1156 <   }
1157 <  
1008 >  
1009    StuntDouble* SimInfo::getIOIndexToIntegrableObject(int index) {
1010 <    return IOIndexToIntegrableObject.at(index);
1010 >    if (index >= IOIndexToIntegrableObject.size()) {
1011 >      sprintf(painCave.errMsg,
1012 >              "SimInfo::getIOIndexToIntegrableObject Error: Integrable Object\n"
1013 >              "\tindex exceeds number of known objects!\n");
1014 >      painCave.isFatal = 1;
1015 >      simError();
1016 >      return NULL;
1017 >    } else
1018 >      return IOIndexToIntegrableObject.at(index);
1019    }
1020    
1021    void SimInfo::setIOIndexToIntegrableObject(const vector<StuntDouble*>& v) {
1022      IOIndexToIntegrableObject= v;
1023    }
1024  
1166  /* Returns the Volume of the simulation based on a ellipsoid with semi-axes
1167     based on the radius of gyration V=4/3*Pi*R_1*R_2*R_3
1168     where R_i are related to the principle inertia moments R_i = sqrt(C*I_i/N), this reduces to
1169     V = 4/3*Pi*(C/N)^3/2*sqrt(det(I)). See S.E. Baltazar et. al. Comp. Mat. Sci. 37 (2006) 526-536.
1170  */
1171  void SimInfo::getGyrationalVolume(RealType &volume){
1172    Mat3x3d intTensor;
1173    RealType det;
1174    Vector3d dummyAngMom;
1175    RealType sysconstants;
1176    RealType geomCnst;
1177
1178    geomCnst = 3.0/2.0;
1179    /* Get the inertial tensor and angular momentum for free*/
1180    getInertiaTensor(intTensor,dummyAngMom);
1181    
1182    det = intTensor.determinant();
1183    sysconstants = geomCnst/(RealType)nGlobalIntegrableObjects_;
1184    volume = 4.0/3.0*NumericConstant::PI*pow(sysconstants,3.0/2.0)*sqrt(det);
1185    return;
1186  }
1187
1188  void SimInfo::getGyrationalVolume(RealType &volume, RealType &detI){
1189    Mat3x3d intTensor;
1190    Vector3d dummyAngMom;
1191    RealType sysconstants;
1192    RealType geomCnst;
1193
1194    geomCnst = 3.0/2.0;
1195    /* Get the inertial tensor and angular momentum for free*/
1196    getInertiaTensor(intTensor,dummyAngMom);
1197    
1198    detI = intTensor.determinant();
1199    sysconstants = geomCnst/(RealType)nGlobalIntegrableObjects_;
1200    volume = 4.0/3.0*NumericConstant::PI*pow(sysconstants,3.0/2.0)*sqrt(detI);
1201    return;
1202  }
1203 /*
1204   void SimInfo::setStuntDoubleFromGlobalIndex(vector<StuntDouble*> v) {
1205      assert( v.size() == nAtoms_ + nRigidBodies_);
1206      sdByGlobalIndex_ = v;
1207    }
1208
1209    StuntDouble* SimInfo::getStuntDoubleFromGlobalIndex(int index) {
1210      //assert(index < nAtoms_ + nRigidBodies_);
1211      return sdByGlobalIndex_.at(index);
1212    }  
1213 */  
1025    int SimInfo::getNGlobalConstraints() {
1026      int nGlobalConstraints;
1027   #ifdef IS_MPI

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