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#include <mpi.h> |
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#include <mpi++.h> |
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#include "mpiSimulation.hpp" |
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#define TAKE_THIS_TAG 0 |
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#define TAKE_THIS_TAG_CHAR 0 |
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#define TAKE_THIS_TAG_INT 1 |
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|
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void nodeZeroError( void ); |
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void anonymousNodeDie( void ); |
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|
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#endif // is_mpi |
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InitializeFromFile :: InitializeFromFile( char *in_name ){ |
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// MPI Section of code.......... |
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#else //IS_MPI |
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|
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// first thing first, suspend fatalities. |
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painCave.isEventLoop = 1; |
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|
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int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone |
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int haveError; |
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|
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MPI::Status istatus; |
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int *AtomToProcMap = mpiSim->getAtomToProcMap(); |
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|
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|
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haveError = 0; |
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if (worldRank == 0) { |
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|
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eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file); |
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if( eof_test == NULL ){ |
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sprintf( painCave.errMsg, |
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"Error reading 1st line of %d \n ",c_in_name); |
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painCave.isFatal = 1; |
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haveError = 1; |
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simError(); |
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} |
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|
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"Initialize from File error. %s n_atoms, %d, " |
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"does not match the BASS file's n_atoms, %d.\n", |
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c_in_name, n_atoms, entry_plug->n_atoms ); |
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painCave.isFatal = 1; |
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haveError= 1; |
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simError(); |
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} |
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|
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if(eof_test == NULL){ |
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sprintf( painCave.errMsg, |
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"error in reading commment in %s\n", c_in_name); |
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painCave.isFatal = 1; |
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haveError= 1; |
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simError(); |
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} |
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|
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if(haveError) nodeZeroError(); |
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for (i=0 ; i < mpiSim->getTotAtoms(); i++) { |
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|
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"natoms = %d; index = %d\n" |
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"error reading the line from the file.\n", |
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c_in_name, n_atoms, i ); |
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painCave.isFatal = 1; |
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haveError= 1; |
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simError(); |
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} |
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|
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if(haveError) nodeZeroError(); |
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|
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// Get the Node number which wants this atom: |
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which_node = AtomToProcMap[i]; |
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if (which_node == mpiSim->getMyNode()) { |
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if (which_node == 0) { |
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parseErr = parseDumpLine( read_buffer, i ); |
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if( parseErr != NULL ){ |
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strcpy( painCave.errMsg, parseErr ); |
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painCave.isFatal = 1; |
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haveError = 1; |
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simError(); |
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} |
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} else { |
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if(haveError) nodeZeroError(); |
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} |
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|
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else { |
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|
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myStatus = 1; |
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MPI::COMM_WORLD.Send(&myStatus, 1, MPI_INT, which_node, |
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TAKE_THIS_TAG_INT); |
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MPI::COMM_WORLD.Send(read_buffer, BUFFERSIZE, MPI_CHAR, which_node, |
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TAKE_THIS_TAG); |
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MPI::COMM_WORLD.Send(&i, 1, MPI_INT, which_node, TAKE_THIS_TAG); |
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TAKE_THIS_TAG_CHAR); |
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MPI::COMM_WORLD.Send(&i, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT); |
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MPI::COMM_WORLD.Recv(&myStatus, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT, istatus); |
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|
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if(!myStatus) nodeZeroError(); |
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} |
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} |
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sprintf(read_buffer, "GAMEOVER"); |
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myStatus = -1; |
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for (j = 0; j < mpiSim->getNumberProcessors(); j++) { |
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MPI::COMM_WORLD.Send(read_buffer, BUFFERSIZE, MPI_CHAR, j, |
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TAKE_THIS_TAG); |
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MPI::COMM_WORLD.Send( &myStatus, 1, MPI_INT, j, |
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TAKE_THIS_TAG_INT); |
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} |
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|
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|
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} else { |
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|
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|
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done = 0; |
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while (!done) { |
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MPI::COMM_WORLD.Recv(read_buffer, BUFFERSIZE, MPI_CHAR, 0, |
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TAKE_THIS_TAG, istatus); |
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if (strcmp(read_buffer, "GAMEOVER")) { |
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done = 1; |
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continue; |
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} else { |
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MPI::COMM_WORLD.Recv(&which_atom, 1, MPI_INT, 0, |
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TAKE_THIS_TAG, istatus); |
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parseErr = parseDumpLine( read_buffer, which_atom ); |
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if( parseErr != NULL ){ |
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strcpy( painCave.errMsg, parseErr ); |
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painCave.isFatal = 1; |
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simError(); |
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} |
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|
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MPI::COMM_WORLD.Recv(&myStatus, 1, MPI_INT, 0, |
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TAKE_THIS_TAG_INT, istatus); |
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|
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if(!myStatus) anonymousNodeDie(); |
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|
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if(myStatus < 0) break; |
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|
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MPI::COMM_WORLD.Recv(read_buffer, BUFFERSIZE, MPI_CHAR, 0, |
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TAKE_THIS_TAG_CHAR, istatus); |
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MPI::COMM_WORLD.Recv(&which_atom, 1, MPI_INT, 0, |
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TAKE_THIS_TAG_INT, istatus); |
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|
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myStatus = 1; |
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parseErr = parseDumpLine( read_buffer, which_atom ); |
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if( parseErr != NULL ){ |
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strcpy( painCave.errMsg, parseErr ); |
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myStatus = 0;; |
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simError(); |
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} |
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|
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MPI::COMM_WORLD.Send( &myStatus, 1, MPI_INT, 0, |
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TAKE_THIS_TAG_INT); |
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|
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} |
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} |
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|
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|
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// last thing last, enable fatalities. |
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painCave.isEventLoop = 0; |
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|
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#endif |
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} |
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|
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< |
char* InitializeFromFile::parseDumpLine(char* readLine, int atomIndex){ |
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char* InitializeFromFile::parseDumpLine(char* readLine, int globalIndex){ |
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|
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char *foo; // the pointer to the current string token |
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|
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Atom **atoms = entry_plug->atoms; |
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DirectionalAtom* dAtom; |
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|
293 |
< |
int n_atoms; |
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> |
int j, n_atoms, atomIndex; |
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|
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#ifdef IS_MPI |
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n_atoms = mpiSim->getTotAtoms(); |
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atomIndex=-1; |
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for (j=0; j < mpiSim->getMyNlocal(); j++) { |
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if (atoms[j]->getGlobalIndex() == globalIndex) atomIndex = j; |
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} |
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if (atomIndex == -1) { |
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sprintf( painCave.errMsg, |
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"Initialize from file error. Atom at index %d " |
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"in file %s does not exist on processor %d .\n", |
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globalIndex, c_in_name, mpiSim->getMyNode() ); |
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return strdup( painCave.errMsg ); |
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} |
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#else |
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n_atoms = entry_plug->n_atoms; |
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atomIndex = globalIndex; |
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#endif // is_mpi |
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|
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– |
|
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// set the string tokenizer |
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|
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foo = strtok(readLine, " ,;\t"); |
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|
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return NULL; |
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} |
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|
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|
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#ifdef IS_MPI |
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|
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// a couple of functions to let us escape the read loop |
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|
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void nodeZeroError( void ){ |
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int j, myStatus; |
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|
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myStatus = 0; |
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for (j = 0; j < mpiSim->getNumberProcessors(); j++) { |
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MPI::COMM_WORLD.Send( &myStatus, 1, MPI_INT, j, |
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TAKE_THIS_TAG_INT); |
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} |
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|
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|
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MPI_Finalize(); |
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exit (0); |
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|
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} |
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|
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void anonymousNodeDie( void ){ |
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|
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MPI_Finalize(); |
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exit (0); |
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} |
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|
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#endif //is_mpi |