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#include "io/DumpWriter.hpp" |
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#include "primitives/Molecule.hpp" |
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#include "utils/simError.h" |
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#ifdef IS_MPI |
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#include <mpi.h> |
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#endif //is_mpi |
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namespace oopse { |
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DumpWriter::DumpWriter(SimInfo* info, const std::string& filename) |
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: info_(info), filename_(filename){ |
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#ifdef IS_MPI |
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if (worldRank == 0) { |
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#endif // is_mpi |
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dumpFile_.open(filename_.c_str(), ios::out | ios::trunc); |
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if (!dumpFile_) { |
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sprintf(painCave.errMsg, "Could not open \"%s\" for dump output.\n", |
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filename_.c_str()); |
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painCave.isFatal = 1; |
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simError(); |
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} |
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#ifdef IS_MPI |
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} |
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sprintf(checkPointMsg, "Sucessfully opened output file for dumping.\n"); |
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MPIcheckPoint(); |
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#endif // is_mpi |
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} |
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DumpWriter::~DumpWriter() { |
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#ifdef IS_MPI |
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if (worldRank == 0) { |
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#endif // is_mpi |
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dumpFile_.close(); |
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#ifdef IS_MPI |
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} |
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#endif // is_mpi |
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} |
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void DumpWriter::writeCommentLine(std::ostream& os, Snapshot* s) { |
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double currentTime; |
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Mat3x3d hmat; |
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double chi; |
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double integralOfChiDt; |
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Mat3x3d eta; |
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currentTime = s->getTime(); |
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hmat = s->getHmat(); |
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chi = s->getChi(); |
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integralOfChiDt = s->getIntegralOfChiDt(); |
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eta = s->getEta(); |
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os << currentTime << ";\t" |
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<< hmat(0, 0) << "\t" << hmat(1, 0) << "\t" << hmat(2, 0) << ";\t" |
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<< hmat(0, 1) << "\t" << hmat(1, 1) << "\t" << hmat(2, 1) << ";\t" |
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<< hmat(0, 2) << "\t" << hmat(1, 2) << "\t" << hmat(2, 2) << ";"; |
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//write out additional parameters, such as chi and eta |
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os << chi << "\t" << integralOfChiDt << "\t;"; |
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os << eta(0, 0) << "\t" << eta(1, 0) << "\t" << eta(2, 0) << ";\t" |
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<< eta(0, 1) << "\t" << eta(1, 1) << "\t" << eta(2, 1) << ";\t" |
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<< eta(0, 2) << "\t" << eta(1, 2) << "\t" << eta(2, 2) << ";"; |
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os << endl; |
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} |
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void DumpWriter::writeFrame(std::ostream& os) { |
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const int BUFFERSIZE = 2000; |
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const int MINIBUFFERSIZE = 100; |
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char tempBuffer[BUFFERSIZE]; |
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char writeLine[BUFFERSIZE]; |
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Quat4d q; |
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Vector3d ji; |
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Vector3d pos; |
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Vector3d vel; |
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Molecule* mol; |
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StuntDouble* integrableObject; |
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SimInfo::MoleculeIterator mi; |
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Molecule::IntegrableObjectIterator ii; |
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int nTotObjects; |
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nTotObjects = info_->getNGlobalIntegrableObjects(); |
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#ifndef IS_MPI |
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os << nTotObjects << "\n"; |
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writeCommentLine(os, info_->getSnapshotManager()->getCurrentSnapshot()); |
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for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) { |
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for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL; |
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integrableObject = mol->nextIntegrableObject(ii)) { |
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pos = integrableObject->getPos(); |
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vel = integrableObject->getVel(); |
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sprintf(tempBuffer, "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t", |
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integrableObject->getType().c_str(), |
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pos[0], pos[1], pos[2], |
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vel[0], vel[1], vel[2]); |
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strcpy(writeLine, tempBuffer); |
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if (integrableObject->isDirectional()) { |
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q = integrableObject->getQ(); |
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ji = integrableObject->getJ(); |
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sprintf(tempBuffer, "%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n", |
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q[0], q[1], q[2], q[3], |
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ji[0], ji[1], ji[2]); |
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strcat(writeLine, tempBuffer); |
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} else { |
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strcat(writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n"); |
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} |
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os << writeLine; |
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} |
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} |
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#else // is_mpi |
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/********************************************************************* |
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* Documentation? You want DOCUMENTATION? |
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* |
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* Why all the potatoes below? |
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* |
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* To make a long story short, the original version of DumpWriter |
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* worked in the most inefficient way possible. Node 0 would |
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* poke each of the node for an individual atom's formatted data |
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* as node 0 worked its way down the global index. This was particularly |
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* inefficient since the method blocked all processors at every atom |
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* (and did it twice!). |
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* |
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* An intermediate version of DumpWriter could be described from Node |
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* zero's perspective as follows: |
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* |
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* 1) Have 100 of your friends stand in a circle. |
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* 2) When you say go, have all of them start tossing potatoes at |
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* you (one at a time). |
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* 3) Catch the potatoes. |
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* |
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* It was an improvement, but MPI has buffers and caches that could |
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* best be described in this analogy as "potato nets", so there's no |
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* need to block the processors atom-by-atom. |
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* |
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* This new and improved DumpWriter works in an even more efficient |
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* way: |
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* |
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* 1) Have 100 of your friend stand in a circle. |
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* 2) When you say go, have them start tossing 5-pound bags of |
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* potatoes at you. |
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* 3) Once you've caught a friend's bag of potatoes, |
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* toss them a spud to let them know they can toss another bag. |
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* |
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* How's THAT for documentation? |
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* |
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*********************************************************************/ |
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const int masterNode = 0; |
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int * potatoes; |
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int myPotato; |
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int nProc; |
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int which_node; |
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double atomData[13]; |
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int isDirectional; |
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const char * atomTypeString; |
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char MPIatomTypeString[MINIBUFFERSIZE]; |
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int msgLen; // the length of message actually recieved at master nodes |
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int haveError; |
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MPI_Status istatus; |
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int nCurObj; |
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// code to find maximum tag value |
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int * tagub; |
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int flag; |
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int MAXTAG; |
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MPI_Attr_get(MPI_COMM_WORLD, MPI_TAG_UB, &tagub, &flag); |
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if (flag) { |
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MAXTAG = *tagub; |
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} else { |
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MAXTAG = 32767; |
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} |
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if (worldRank == masterNode) { //master node (node 0) is responsible for writing the dump file |
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// Node 0 needs a list of the magic potatoes for each processor; |
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MPI_Comm_size(MPI_COMM_WORLD, &nProc); |
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potatoes = new int[nProc]; |
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//write out the comment lines |
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for(i = 0; i < nProc; i++) { |
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potatoes[i] = 0; |
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} |
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os << nTotObjects << "\n"; |
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writeCommentLine(info_->getSnapshotManager()->getCurrentSnapshot()); |
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for(i = 0; i < info_->getNGlobalMolecules(); i++) { |
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// Get the Node number which has this atom; |
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which_node = info_->getMolToProc(i); |
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if (which_node != masterNode) { //current molecule is in slave node |
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if (potatoes[which_node] + 1 >= MAXTAG) { |
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// The potato was going to exceed the maximum value, |
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// so wrap this processor potato back to 0: |
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potatoes[which_node] = 0; |
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MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, 0, |
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MPI_COMM_WORLD); |
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} |
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myPotato = potatoes[which_node]; |
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//recieve the number of integrableObject in current molecule |
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MPI_Recv(&nCurObj, 1, MPI_INT, which_node, myPotato, |
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MPI_COMM_WORLD, &istatus); |
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myPotato++; |
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for(int l = 0; l < nCurObj; l++) { |
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if (potatoes[which_node] + 2 >= MAXTAG) { |
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// The potato was going to exceed the maximum value, |
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// so wrap this processor potato back to 0: |
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potatoes[which_node] = 0; |
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MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, |
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0, MPI_COMM_WORLD); |
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} |
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MPI_Recv(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, |
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which_node, myPotato, MPI_COMM_WORLD, |
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&istatus); |
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atomTypeString = MPIatomTypeString; |
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myPotato++; |
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MPI_Recv(atomData, 13, MPI_DOUBLE, which_node, myPotato, |
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MPI_COMM_WORLD, &istatus); |
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myPotato++; |
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MPI_Get_count(&istatus, MPI_DOUBLE, &msgLen); |
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if (msgLen == 13) |
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isDirectional = 1; |
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else |
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isDirectional = 0; |
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// If we've survived to here, format the line: |
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if (!isDirectional) { |
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sprintf(writeLine, "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t", |
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atomTypeString, atomData[0], |
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atomData[1], atomData[2], |
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atomData[3], atomData[4], |
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atomData[5]); |
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strcat(writeLine, |
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"0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n"); |
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} else { |
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sprintf(writeLine, |
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"%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n", |
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atomTypeString, |
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atomData[0], |
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atomData[1], |
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atomData[2], |
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atomData[3], |
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atomData[4], |
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atomData[5], |
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atomData[6], |
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atomData[7], |
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atomData[8], |
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atomData[9], |
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atomData[10], |
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atomData[11], |
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atomData[12]); |
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} |
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os << writeLine; |
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} // end for(int l =0) |
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potatoes[which_node] = myPotato; |
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} else { //master node has current molecule |
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mol = info_->getMoleculeByGlobalIndex(i); |
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if (mol == NULL) { |
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strcpy(painCave.errMsg, "Molecule not found on node %d!", worldRank); |
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painCave.isFatal = 1; |
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simError(); |
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} |
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for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL; |
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integrableObject = mol->nextIntegrableObject(ii)) { |
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atomTypeString = integrableObject->getType().c_str(); |
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pos = integrableObject->getPos(); |
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vel = integrableObject->getVel(); |
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atomData[0] = pos[0]; |
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atomData[1] = pos[1]; |
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atomData[2] = pos[2]; |
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atomData[3] = vel[0]; |
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atomData[4] = vel[1]; |
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atomData[5] = vel[2]; |
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isDirectional = 0; |
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if (integrableObject->isDirectional()) { |
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isDirectional = 1; |
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q = integrableObject->getQ(); |
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ji = integrableObject->getJ(); |
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for(int j = 0; j < 6; j++) { |
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atomData[j] = atomData[j]; |
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} |
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atomData[6] = q[0]; |
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atomData[7] = q[1]; |
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atomData[8] = q[2]; |
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atomData[9] = q[3]; |
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atomData[10] = ji[0]; |
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atomData[11] = ji[1]; |
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atomData[12] = ji[2]; |
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} |
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// If we've survived to here, format the line: |
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if (!isDirectional) { |
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sprintf(writeLine, "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t", |
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atomTypeString, atomData[0], |
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atomData[1], atomData[2], |
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atomData[3], atomData[4], |
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atomData[5]); |
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strcat(writeLine, |
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"0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n"); |
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} else { |
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sprintf(writeLine, |
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"%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n", |
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atomTypeString, |
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atomData[0], |
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atomData[1], |
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atomData[2], |
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atomData[3], |
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atomData[4], |
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atomData[5], |
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|
atomData[6], |
382 |
|
|
atomData[7], |
383 |
|
|
atomData[8], |
384 |
|
|
atomData[9], |
385 |
|
|
atomData[10], |
386 |
|
|
atomData[11], |
387 |
|
|
atomData[12]); |
388 |
|
|
} |
389 |
|
|
|
390 |
tim |
1739 |
|
391 |
|
|
os << writeLine; |
392 |
|
|
|
393 |
tim |
1727 |
} //end for(iter = integrableObject.begin()) |
394 |
|
|
} |
395 |
|
|
} //end for(i = 0; i < mpiSim->getNmol()) |
396 |
|
|
|
397 |
tim |
1739 |
os.flush(); |
398 |
tim |
1727 |
|
399 |
|
|
sprintf(checkPointMsg, "Sucessfully took a dump.\n"); |
400 |
|
|
|
401 |
|
|
MPIcheckPoint(); |
402 |
|
|
|
403 |
|
|
delete [] potatoes; |
404 |
|
|
} else { |
405 |
|
|
|
406 |
|
|
// worldRank != 0, so I'm a remote node. |
407 |
|
|
|
408 |
|
|
// Set my magic potato to 0: |
409 |
|
|
|
410 |
|
|
myPotato = 0; |
411 |
|
|
|
412 |
tim |
1739 |
for(i = 0; i < info_->getNGlobalMolecules(); i++) { |
413 |
tim |
1727 |
|
414 |
|
|
// Am I the node which has this integrableObject? |
415 |
tim |
1739 |
whichNode = info_->getMolToProc(i); |
416 |
|
|
if (whichNode == worldRank) { |
417 |
tim |
1727 |
if (myPotato + 1 >= MAXTAG) { |
418 |
|
|
|
419 |
|
|
// The potato was going to exceed the maximum value, |
420 |
|
|
// so wrap this processor potato back to 0 (and block until |
421 |
|
|
// node 0 says we can go: |
422 |
|
|
|
423 |
|
|
MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, |
424 |
|
|
&istatus); |
425 |
|
|
} |
426 |
|
|
|
427 |
tim |
1739 |
mol = info_->getMoleculeByGlobalIndex(i); |
428 |
tim |
1727 |
|
429 |
tim |
1739 |
|
430 |
|
|
nCurObj = mol->getNIntegrableObjects(); |
431 |
tim |
1727 |
|
432 |
|
|
MPI_Send(&nCurObj, 1, MPI_INT, 0, myPotato, MPI_COMM_WORLD); |
433 |
|
|
myPotato++; |
434 |
|
|
|
435 |
tim |
1739 |
for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL; |
436 |
|
|
integrableObject = mol->nextIntegrableObject(ii)) { |
437 |
|
|
|
438 |
tim |
1727 |
if (myPotato + 2 >= MAXTAG) { |
439 |
|
|
|
440 |
|
|
// The potato was going to exceed the maximum value, |
441 |
|
|
// so wrap this processor potato back to 0 (and block until |
442 |
|
|
// node 0 says we can go: |
443 |
|
|
|
444 |
|
|
MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, |
445 |
|
|
&istatus); |
446 |
|
|
} |
447 |
|
|
|
448 |
tim |
1739 |
atomTypeString = integrableObject->getType().c_str(); |
449 |
tim |
1727 |
|
450 |
tim |
1739 |
pos = integrableObject->getPos(); |
451 |
|
|
vel = integrableObject->getVel(); |
452 |
tim |
1727 |
|
453 |
|
|
atomData[0] = pos[0]; |
454 |
|
|
atomData[1] = pos[1]; |
455 |
|
|
atomData[2] = pos[2]; |
456 |
|
|
|
457 |
|
|
atomData[3] = vel[0]; |
458 |
|
|
atomData[4] = vel[1]; |
459 |
|
|
atomData[5] = vel[2]; |
460 |
|
|
|
461 |
|
|
isDirectional = 0; |
462 |
|
|
|
463 |
tim |
1739 |
if (integrableObject->isDirectional()) { |
464 |
tim |
1727 |
isDirectional = 1; |
465 |
|
|
|
466 |
tim |
1739 |
q = integrableObject->getQ(); |
467 |
|
|
ji = integrableObject->getJ(); |
468 |
tim |
1727 |
|
469 |
|
|
atomData[6] = q[0]; |
470 |
|
|
atomData[7] = q[1]; |
471 |
|
|
atomData[8] = q[2]; |
472 |
|
|
atomData[9] = q[3]; |
473 |
|
|
|
474 |
|
|
atomData[10] = ji[0]; |
475 |
|
|
atomData[11] = ji[1]; |
476 |
|
|
atomData[12] = ji[2]; |
477 |
|
|
} |
478 |
|
|
|
479 |
|
|
strncpy(MPIatomTypeString, atomTypeString, MINIBUFFERSIZE); |
480 |
|
|
|
481 |
tim |
1829 |
// null terminate the std::string before sending (just in case): |
482 |
tim |
1727 |
MPIatomTypeString[MINIBUFFERSIZE - 1] = '\0'; |
483 |
|
|
|
484 |
|
|
MPI_Send(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, 0, |
485 |
|
|
myPotato, MPI_COMM_WORLD); |
486 |
|
|
|
487 |
|
|
myPotato++; |
488 |
|
|
|
489 |
|
|
if (isDirectional) { |
490 |
|
|
MPI_Send(atomData, 13, MPI_DOUBLE, 0, myPotato, |
491 |
|
|
MPI_COMM_WORLD); |
492 |
|
|
} else { |
493 |
|
|
MPI_Send(atomData, 6, MPI_DOUBLE, 0, myPotato, |
494 |
|
|
MPI_COMM_WORLD); |
495 |
|
|
} |
496 |
|
|
|
497 |
|
|
myPotato++; |
498 |
|
|
} |
499 |
tim |
1739 |
|
500 |
tim |
1727 |
} |
501 |
tim |
1739 |
|
502 |
tim |
1727 |
} |
503 |
|
|
|
504 |
|
|
sprintf(checkPointMsg, "Sucessfully took a dump.\n"); |
505 |
|
|
MPIcheckPoint(); |
506 |
|
|
} |
507 |
|
|
|
508 |
|
|
#endif // is_mpi |
509 |
|
|
|
510 |
|
|
} |
511 |
|
|
|
512 |
tim |
1739 |
}//end namespace oopse |