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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 1534 by gezelter, Wed Dec 29 21:53:28 2010 UTC vs.
Revision 1535 by gezelter, Fri Dec 31 18:31:56 2010 UTC

# Line 54 | Line 54
54   #include "math/Vector3.hpp"
55   #include "primitives/Molecule.hpp"
56   #include "primitives/StuntDouble.hpp"
57 #include "UseTheForce/doForces_interface.h"
57   #include "UseTheForce/DarkSide/neighborLists_interface.h"
58   #include "utils/MemoryUtils.hpp"
59   #include "utils/simError.h"
# Line 656 | Line 655 | namespace OpenMD {
655    /**
656     * update
657     *
658 <   *  Performs the global checks and variable settings after the objects have been
659 <   *  created.
658 >   *  Performs the global checks and variable settings after the
659 >   *  objects have been created.
660     *
661     */
662 <  void SimInfo::update() {
664 <    
662 >  void SimInfo::update() {  
663      setupSimVariables();
666    setupCutoffs();
667    setupSwitching();
668    setupElectrostatics();
669    setupNeighborlists();
670
671 #ifdef IS_MPI
672    setupFortranParallel();
673 #endif
674    setupFortranSim();
675    fortranInitialized_ = true;
676
664      calcNdf();
665      calcNdfRaw();
666      calcNdfTrans();
667    }
668    
669 +  /**
670 +   * getSimulatedAtomTypes
671 +   *
672 +   * Returns an STL set of AtomType* that are actually present in this
673 +   * simulation.  Must query all processors to assemble this information.
674 +   *
675 +   */
676    set<AtomType*> SimInfo::getSimulatedAtomTypes() {
677      SimInfo::MoleculeIterator mi;
678      Molecule* mol;
# Line 691 | Line 685 | namespace OpenMD {
685          atomTypes.insert(atom->getAtomType());
686        }      
687      }    
694    return atomTypes;        
695  }
688  
689 <  /**
698 <   * setupCutoffs
699 <   *
700 <   * Sets the values of cutoffRadius and cutoffMethod
701 <   *
702 <   * cutoffRadius : realType
703 <   *  If the cutoffRadius was explicitly set, use that value.
704 <   *  If the cutoffRadius was not explicitly set:
705 <   *      Are there electrostatic atoms?  Use 12.0 Angstroms.
706 <   *      No electrostatic atoms?  Poll the atom types present in the
707 <   *      simulation for suggested cutoff values (e.g. 2.5 * sigma).
708 <   *      Use the maximum suggested value that was found.
709 <   *
710 <   * cutoffMethod : (one of HARD, SWITCHED, SHIFTED_FORCE, SHIFTED_POTENTIAL)
711 <   *      If cutoffMethod was explicitly set, use that choice.
712 <   *      If cutoffMethod was not explicitly set, use SHIFTED_FORCE
713 <   */
714 <  void SimInfo::setupCutoffs() {
715 <    
716 <    if (simParams_->haveCutoffRadius()) {
717 <      cutoffRadius_ = simParams_->getCutoffRadius();
718 <    } else {      
719 <      if (usesElectrostaticAtoms_) {
720 <        sprintf(painCave.errMsg,
721 <                "SimInfo: No value was set for the cutoffRadius.\n"
722 <                "\tOpenMD will use a default value of 12.0 angstroms"
723 <                "\tfor the cutoffRadius.\n");
724 <        painCave.isFatal = 0;
725 <        painCave.severity = OPENMD_INFO;
726 <        simError();
727 <        cutoffRadius_ = 12.0;
728 <      } else {
729 <        RealType thisCut;
730 <        set<AtomType*>::iterator i;
731 <        set<AtomType*> atomTypes;
732 <        atomTypes = getSimulatedAtomTypes();        
733 <        for (i = atomTypes.begin(); i != atomTypes.end(); ++i) {
734 <          thisCut = InteractionManager::Instance()->getSuggestedCutoffRadius((*i));
735 <          cutoffRadius_ = max(thisCut, cutoffRadius_);
736 <        }
737 <        sprintf(painCave.errMsg,
738 <                "SimInfo: No value was set for the cutoffRadius.\n"
739 <                "\tOpenMD will use %lf angstroms.\n",
740 <                cutoffRadius_);
741 <        painCave.isFatal = 0;
742 <        painCave.severity = OPENMD_INFO;
743 <        simError();
744 <      }            
745 <    }
689 > #ifdef IS_MPI
690  
691 <    map<string, CutoffMethod> stringToCutoffMethod;
692 <    stringToCutoffMethod["HARD"] = HARD;
693 <    stringToCutoffMethod["SWITCHING_FUNCTION"] = SWITCHING_FUNCTION;
694 <    stringToCutoffMethod["SHIFTED_POTENTIAL"] = SHIFTED_POTENTIAL;    
695 <    stringToCutoffMethod["SHIFTED_FORCE"] = SHIFTED_FORCE;
696 <  
697 <    if (simParams_->haveCutoffMethod()) {
698 <      string cutMeth = toUpperCopy(simParams_->getCutoffMethod());
699 <      map<string, CutoffMethod>::iterator i;
700 <      i = stringToCutoffMethod.find(cutMeth);
701 <      if (i == stringToCutoffMethod.end()) {
702 <        sprintf(painCave.errMsg,
703 <                "SimInfo: Could not find chosen cutoffMethod %s\n"
704 <                "\tShould be one of: "
705 <                "HARD, SWITCHING_FUNCTION, SHIFTED_POTENTIAL, or SHIFTED_FORCE\n",
706 <                cutMeth.c_str());
707 <        painCave.isFatal = 1;
708 <        painCave.severity = OPENMD_ERROR;
709 <        simError();
710 <      } else {
711 <        cutoffMethod_ = i->second;
712 <      }
713 <    } else {
714 <      sprintf(painCave.errMsg,
715 <              "SimInfo: No value was set for the cutoffMethod.\n"
716 <              "\tOpenMD will use SHIFTED_FORCE.\n");
717 <        painCave.isFatal = 0;
774 <        painCave.severity = OPENMD_INFO;
775 <        simError();
776 <        cutoffMethod_ = SHIFTED_FORCE;        
777 <    }
778 <  }
779 <  
780 <  /**
781 <   * setupSwitching
782 <   *
783 <   * Sets the values of switchingRadius and
784 <   *  If the switchingRadius was explicitly set, use that value (but check it)
785 <   *  If the switchingRadius was not explicitly set: use 0.85 * cutoffRadius_
786 <   */
787 <  void SimInfo::setupSwitching() {
691 >    // loop over the found atom types on this processor, and add their
692 >    // numerical idents to a vector:
693 >
694 >    vector<int> foundTypes;
695 >    set<AtomType*>::iterator i;
696 >    for (i = atomTypes.begin(); i != atomTypes.end(); ++i)
697 >      foundTypes.push_back( (*i)->getIdent() );
698 >
699 >    // count_local holds the number of found types on this processor
700 >    int count_local = foundTypes.size();
701 >
702 >    // count holds the total number of found types on all processors
703 >    // (some will be redundant with the ones found locally):
704 >    int count;
705 >    MPI::COMM_WORLD.Allreduce(&count_local, &count, 1, MPI::INT, MPI::SUM);
706 >
707 >    // create a vector to hold the globally found types, and resize it:
708 >    vector<int> ftGlobal;
709 >    ftGlobal.resize(count);
710 >    vector<int> counts;
711 >
712 >    int nproc = MPI::COMM_WORLD.Get_size();
713 >    counts.resize(nproc);
714 >    vector<int> disps;
715 >    disps.resize(nproc);
716 >
717 >    // now spray out the foundTypes to all the other processors:
718      
719 <    if (simParams_->haveSwitchingRadius()) {
720 <      switchingRadius_ = simParams_->getSwitchingRadius();
791 <      if (switchingRadius_ > cutoffRadius_) {        
792 <        sprintf(painCave.errMsg,
793 <                "SimInfo: switchingRadius (%f) is larger than cutoffRadius(%f)\n",
794 <                switchingRadius_, cutoffRadius_);
795 <        painCave.isFatal = 1;
796 <        painCave.severity = OPENMD_ERROR;
797 <        simError();
798 <      }
799 <    } else {      
800 <      switchingRadius_ = 0.85 * cutoffRadius_;
801 <      sprintf(painCave.errMsg,
802 <              "SimInfo: No value was set for the switchingRadius.\n"
803 <              "\tOpenMD will use a default value of 85 percent of the cutoffRadius.\n"
804 <              "\tswitchingRadius = %f. for this simulation\n", switchingRadius_);
805 <      painCave.isFatal = 0;
806 <      painCave.severity = OPENMD_WARNING;
807 <      simError();
808 <    }          
809 <    
810 <    if (simParams_->haveSwitchingFunctionType()) {
811 <      string funcType = simParams_->getSwitchingFunctionType();
812 <      toUpper(funcType);
813 <      if (funcType == "CUBIC") {
814 <        sft_ = cubic;
815 <      } else {
816 <        if (funcType == "FIFTH_ORDER_POLYNOMIAL") {
817 <          sft_ = fifth_order_poly;
818 <        } else {
819 <          // throw error        
820 <          sprintf( painCave.errMsg,
821 <                   "SimInfo : Unknown switchingFunctionType. (Input file specified %s .)\n"
822 <                   "\tswitchingFunctionType must be one of: "
823 <                   "\"cubic\" or \"fifth_order_polynomial\".",
824 <                   funcType.c_str() );
825 <          painCave.isFatal = 1;
826 <          painCave.severity = OPENMD_ERROR;
827 <          simError();
828 <        }          
829 <      }
830 <    }
831 <  }
719 >    MPI::COMM_WORLD.Allgatherv(&foundTypes[0], count_local, MPI::INT,
720 >                               &ftGlobal[0], &counts[0], &disps[0], MPI::INT);
721  
722 <  /**
723 <   * setupNeighborlists
724 <   *
725 <   *  If the skinThickness was explicitly set, use that value (but check it)
726 <   *  If the skinThickness was not explicitly set: use 1.0 angstroms
727 <   */
728 <  void SimInfo::setupNeighborlists() {    
729 <    if (simParams_->haveSkinThickness()) {
730 <      skinThickness_ = simParams_->getSkinThickness();
731 <    } else {      
732 <      skinThickness_ = 1.0;
733 <      sprintf(painCave.errMsg,
734 <              "SimInfo: No value was set for the skinThickness.\n"
735 <              "\tOpenMD will use a default value of %f Angstroms\n"
736 <              "\tfor this simulation\n", skinThickness_);
737 <      painCave.severity = OPENMD_INFO;
849 <      painCave.isFatal = 0;
850 <      simError();
851 <    }            
722 >    // foundIdents is a stl set, so inserting an already found ident
723 >    // will have no effect.
724 >    set<int> foundIdents;
725 >    vector<int>::iterator j;
726 >    for (j = ftGlobal.begin(); j != ftGlobal.end(); ++j)
727 >      foundIdents.insert((*j));
728 >    
729 >    // now iterate over the foundIdents and get the actual atom types
730 >    // that correspond to these:
731 >    set<int>::iterator it;
732 >    for (it = foundIdents.begin(); it != foundIdents.end(); ++it)
733 >      atomTypes.insert( forceField_->getAtomType((*it)) );
734 >
735 > #endif
736 >    
737 >    return atomTypes;        
738    }
739  
740    void SimInfo::setupSimVariables() {
# Line 892 | Line 778 | namespace OpenMD {
778      fInfo_.SIM_uses_AtomicVirial = usesAtomicVirial_;
779    }
780  
781 <  void SimInfo::setupFortranSim() {
781 >  void SimInfo::setupFortran() {
782      int isError;
783      int nExclude, nOneTwo, nOneThree, nOneFour;
784      vector<int> fortranGlobalGroupMembership;
785      
900    notifyFortranSkinThickness(&skinThickness_);
901
902    int ljsp = cutoffMethod_ == SHIFTED_POTENTIAL ? 1 : 0;
903    int ljsf = cutoffMethod_ == SHIFTED_FORCE ? 1 : 0;
904    notifyFortranCutoffs(&cutoffRadius_, &switchingRadius_, &ljsp, &ljsf);
905
786      isError = 0;
787  
788      //globalGroupMembership_ is filled by SimCreator    
# Line 937 | Line 817 | namespace OpenMD {
817        }      
818      }
819  
820 <    //fill ident array of local atoms (it is actually ident of AtomType, it is so confusing !!!)
820 >    //fill ident array of local atoms (it is actually ident of
821 >    //AtomType, it is so confusing !!!)
822      vector<int> identArray;
823  
824      //to avoid memory reallocation, reserve enough space identArray
# Line 997 | Line 878 | namespace OpenMD {
878        setNeighbors(&nlistNeighbors);
879      }
880    
1000
1001  }
1002
1003
1004  void SimInfo::setupFortranParallel() {
881   #ifdef IS_MPI    
882 <    //SimInfo is responsible for creating localToGlobalAtomIndex and localToGlobalGroupIndex
882 >    //SimInfo is responsible for creating localToGlobalAtomIndex and
883 >    //localToGlobalGroupIndex
884      vector<int> localToGlobalAtomIndex(getNAtoms(), 0);
885      vector<int> localToGlobalCutoffGroupIndex;
1009    SimInfo::MoleculeIterator mi;
1010    Molecule::AtomIterator ai;
1011    Molecule::CutoffGroupIterator ci;
1012    Molecule* mol;
1013    Atom* atom;
1014    CutoffGroup* cg;
886      mpiSimData parallelData;
1016    int isError;
887  
888      for (mol = beginMolecule(mi); mol != NULL; mol  = nextMolecule(mi)) {
889  
# Line 1053 | Line 923 | namespace OpenMD {
923  
924      sprintf(checkPointMsg, " mpiRefresh successful.\n");
925      errorCheckPoint();
1056
926   #endif
927 <  }
1059 <
1060 <
1061 <  void SimInfo::setupAccumulateBoxDipole() {    
1062 <
1063 <
927 >    fortranInitialized_ = true;
928    }
929  
930    void SimInfo::addProperty(GenericData* genData) {

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