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root/OpenMD/branches/development/src/brains/SimInfo.cpp
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Comparing branches/development/src/brains/SimInfo.cpp (file contents):
Revision 1715 by gezelter, Tue May 22 21:55:31 2012 UTC vs.
Revision 1764 by gezelter, Tue Jul 3 18:32:27 2012 UTC

# Line 59 | 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>
# Line 259 | Line 259 | namespace OpenMD {
259        }
260      }
261      
262 +    ndfLocal_ = ndf_local;
263 +
264      // n_constraints is local, so subtract them on each processor
265      ndf_local -= nConstraints_;
266  
# Line 799 | Line 801 | namespace OpenMD {
801        usesDirectional |= (*i)->isDirectional();
802        usesFluctuatingCharges |= (*i)->isFluctuatingCharge();
803      }
804 <    
804 >
805   #ifdef IS_MPI    
806      int temp;
807      temp = usesDirectional;
# Line 987 | Line 989 | namespace OpenMD {
989      
990    }
991  
990 –  Vector3d SimInfo::getComVel(){
991 –    SimInfo::MoleculeIterator i;
992 –    Molecule* mol;
992  
994 –    Vector3d comVel(0.0);
995 –    RealType totalMass = 0.0;
996 –    
997 –
998 –    for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
999 –      RealType mass = mol->getMass();
1000 –      totalMass += mass;
1001 –      comVel += mass * mol->getComVel();
1002 –    }  
1003 –
1004 – #ifdef IS_MPI
1005 –    RealType tmpMass = totalMass;
1006 –    Vector3d tmpComVel(comVel);    
1007 –    MPI_Allreduce(&tmpMass,&totalMass,1,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1008 –    MPI_Allreduce(tmpComVel.getArrayPointer(), comVel.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1009 – #endif
1010 –
1011 –    comVel /= totalMass;
1012 –
1013 –    return comVel;
1014 –  }
1015 –
1016 –  Vector3d SimInfo::getCom(){
1017 –    SimInfo::MoleculeIterator i;
1018 –    Molecule* mol;
1019 –
1020 –    Vector3d com(0.0);
1021 –    RealType totalMass = 0.0;
1022 –    
1023 –    for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
1024 –      RealType mass = mol->getMass();
1025 –      totalMass += mass;
1026 –      com += mass * mol->getCom();
1027 –    }  
1028 –
1029 – #ifdef IS_MPI
1030 –    RealType tmpMass = totalMass;
1031 –    Vector3d tmpCom(com);    
1032 –    MPI_Allreduce(&tmpMass,&totalMass,1,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1033 –    MPI_Allreduce(tmpCom.getArrayPointer(), com.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1034 – #endif
1035 –
1036 –    com /= totalMass;
1037 –
1038 –    return com;
1039 –
1040 –  }        
1041 –
993    ostream& operator <<(ostream& o, SimInfo& info) {
994  
995      return o;
996    }
1046 –  
1047 –  
1048 –   /*
1049 –   Returns center of mass and center of mass velocity in one function call.
1050 –   */
997    
998 <   void SimInfo::getComAll(Vector3d &com, Vector3d &comVel){
1053 <      SimInfo::MoleculeIterator i;
1054 <      Molecule* mol;
1055 <      
1056 <    
1057 <      RealType totalMass = 0.0;
1058 <    
1059 <
1060 <      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
1061 <         RealType mass = mol->getMass();
1062 <         totalMass += mass;
1063 <         com += mass * mol->getCom();
1064 <         comVel += mass * mol->getComVel();          
1065 <      }  
1066 <      
1067 < #ifdef IS_MPI
1068 <      RealType tmpMass = totalMass;
1069 <      Vector3d tmpCom(com);  
1070 <      Vector3d tmpComVel(comVel);
1071 <      MPI_Allreduce(&tmpMass,&totalMass,1,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1072 <      MPI_Allreduce(tmpCom.getArrayPointer(), com.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1073 <      MPI_Allreduce(tmpComVel.getArrayPointer(), comVel.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1074 < #endif
1075 <      
1076 <      com /= totalMass;
1077 <      comVel /= totalMass;
1078 <   }        
1079 <  
1080 <   /*
1081 <   Return intertia tensor for entire system and angular momentum Vector.
1082 <
1083 <
1084 <       [  Ixx -Ixy  -Ixz ]
1085 <    J =| -Iyx  Iyy  -Iyz |
1086 <       [ -Izx -Iyz   Izz ]
1087 <    */
1088 <
1089 <   void SimInfo::getInertiaTensor(Mat3x3d &inertiaTensor, Vector3d &angularMomentum){
1090 <      
1091 <
1092 <      RealType xx = 0.0;
1093 <      RealType yy = 0.0;
1094 <      RealType zz = 0.0;
1095 <      RealType xy = 0.0;
1096 <      RealType xz = 0.0;
1097 <      RealType yz = 0.0;
1098 <      Vector3d com(0.0);
1099 <      Vector3d comVel(0.0);
1100 <      
1101 <      getComAll(com, comVel);
1102 <      
1103 <      SimInfo::MoleculeIterator i;
1104 <      Molecule* mol;
1105 <      
1106 <      Vector3d thisq(0.0);
1107 <      Vector3d thisv(0.0);
1108 <
1109 <      RealType thisMass = 0.0;
1110 <    
1111 <      
1112 <      
1113 <  
1114 <      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {
1115 <        
1116 <         thisq = mol->getCom()-com;
1117 <         thisv = mol->getComVel()-comVel;
1118 <         thisMass = mol->getMass();
1119 <         // Compute moment of intertia coefficients.
1120 <         xx += thisq[0]*thisq[0]*thisMass;
1121 <         yy += thisq[1]*thisq[1]*thisMass;
1122 <         zz += thisq[2]*thisq[2]*thisMass;
1123 <        
1124 <         // compute products of intertia
1125 <         xy += thisq[0]*thisq[1]*thisMass;
1126 <         xz += thisq[0]*thisq[2]*thisMass;
1127 <         yz += thisq[1]*thisq[2]*thisMass;
1128 <            
1129 <         angularMomentum += cross( thisq, thisv ) * thisMass;
1130 <            
1131 <      }  
1132 <      
1133 <      
1134 <      inertiaTensor(0,0) = yy + zz;
1135 <      inertiaTensor(0,1) = -xy;
1136 <      inertiaTensor(0,2) = -xz;
1137 <      inertiaTensor(1,0) = -xy;
1138 <      inertiaTensor(1,1) = xx + zz;
1139 <      inertiaTensor(1,2) = -yz;
1140 <      inertiaTensor(2,0) = -xz;
1141 <      inertiaTensor(2,1) = -yz;
1142 <      inertiaTensor(2,2) = xx + yy;
1143 <      
1144 < #ifdef IS_MPI
1145 <      Mat3x3d tmpI(inertiaTensor);
1146 <      Vector3d tmpAngMom;
1147 <      MPI_Allreduce(tmpI.getArrayPointer(), inertiaTensor.getArrayPointer(),9,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1148 <      MPI_Allreduce(tmpAngMom.getArrayPointer(), angularMomentum.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1149 < #endif
1150 <              
1151 <      return;
1152 <   }
1153 <
1154 <   //Returns the angular momentum of the system
1155 <   Vector3d SimInfo::getAngularMomentum(){
1156 <      
1157 <      Vector3d com(0.0);
1158 <      Vector3d comVel(0.0);
1159 <      Vector3d angularMomentum(0.0);
1160 <      
1161 <      getComAll(com,comVel);
1162 <      
1163 <      SimInfo::MoleculeIterator i;
1164 <      Molecule* mol;
1165 <      
1166 <      Vector3d thisr(0.0);
1167 <      Vector3d thisp(0.0);
1168 <      
1169 <      RealType thisMass;
1170 <      
1171 <      for (mol = beginMolecule(i); mol != NULL; mol = nextMolecule(i)) {        
1172 <        thisMass = mol->getMass();
1173 <        thisr = mol->getCom()-com;
1174 <        thisp = (mol->getComVel()-comVel)*thisMass;
1175 <        
1176 <        angularMomentum += cross( thisr, thisp );
1177 <        
1178 <      }  
1179 <      
1180 < #ifdef IS_MPI
1181 <      Vector3d tmpAngMom;
1182 <      MPI_Allreduce(tmpAngMom.getArrayPointer(), angularMomentum.getArrayPointer(),3,MPI_REALTYPE,MPI_SUM, MPI_COMM_WORLD);
1183 < #endif
1184 <      
1185 <      return angularMomentum;
1186 <   }
1187 <  
998 >  
999    StuntDouble* SimInfo::getIOIndexToIntegrableObject(int index) {
1000      return IOIndexToIntegrableObject.at(index);
1001    }
# Line 1192 | Line 1003 | namespace OpenMD {
1003    void SimInfo::setIOIndexToIntegrableObject(const vector<StuntDouble*>& v) {
1004      IOIndexToIntegrableObject= v;
1005    }
1195 –
1196 –  /* Returns the Volume of the simulation based on a ellipsoid with semi-axes
1197 –     based on the radius of gyration V=4/3*Pi*R_1*R_2*R_3
1198 –     where R_i are related to the principle inertia moments R_i = sqrt(C*I_i/N), this reduces to
1199 –     V = 4/3*Pi*(C/N)^3/2*sqrt(det(I)). See S.E. Baltazar et. al. Comp. Mat. Sci. 37 (2006) 526-536.
1200 –  */
1201 –  void SimInfo::getGyrationalVolume(RealType &volume){
1202 –    Mat3x3d intTensor;
1203 –    RealType det;
1204 –    Vector3d dummyAngMom;
1205 –    RealType sysconstants;
1206 –    RealType geomCnst;
1207 –
1208 –    geomCnst = 3.0/2.0;
1209 –    /* Get the inertial tensor and angular momentum for free*/
1210 –    getInertiaTensor(intTensor,dummyAngMom);
1211 –    
1212 –    det = intTensor.determinant();
1213 –    sysconstants = geomCnst/(RealType)nGlobalIntegrableObjects_;
1214 –    volume = 4.0/3.0*NumericConstant::PI*pow(sysconstants,geomCnst)*sqrt(det);
1215 –    return;
1216 –  }
1217 –
1218 –  void SimInfo::getGyrationalVolume(RealType &volume, RealType &detI){
1219 –    Mat3x3d intTensor;
1220 –    Vector3d dummyAngMom;
1221 –    RealType sysconstants;
1222 –    RealType geomCnst;
1223 –
1224 –    geomCnst = 3.0/2.0;
1225 –    /* Get the inertial tensor and angular momentum for free*/
1226 –    getInertiaTensor(intTensor,dummyAngMom);
1227 –    
1228 –    detI = intTensor.determinant();
1229 –    sysconstants = geomCnst/(RealType)nGlobalIntegrableObjects_;
1230 –    volume = 4.0/3.0*NumericConstant::PI*pow(sysconstants,geomCnst)*sqrt(detI);
1231 –    return;
1232 –  }
1006   /*
1007     void SimInfo::setStuntDoubleFromGlobalIndex(vector<StuntDouble*> v) {
1008        assert( v.size() == nAtoms_ + nRigidBodies_);

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