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template<class ArithT>
Definition at line 271 of file PxDistribution.h. References _myCPU, _nrCPUs, and BCAST_TAG. Referenced by PxBcastValue(), and PxReduceValueToAllOFT(). 00272 { 00273 /*** Broadcast value using One-level Flat Tree ***/ 00274 00275 MPI_Datatype elem; 00276 MPI_Status stat; 00277 MPI_Type_contiguous(sizeof(ArithT), MPI_BYTE, &elem); 00278 MPI_Type_commit(&elem); 00279 00280 if (_myCPU == root) { // send value to all other CPUs 00281 for (int partner=0; partner<_nrCPUs; partner++) { 00282 if (partner != _myCPU) { 00283 MPI_Send(&val, 00284 1, elem, partner, BCAST_TAG, MPI_COMM_WORLD); 00285 } 00286 } 00287 } else { // receive value from root 00288 MPI_Recv(&val, 1, elem, root, BCAST_TAG, MPI_COMM_WORLD, &stat); 00289 } 00290 MPI_Type_free(&elem); 00291 return val; 00292 }
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1.5.1