X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0716a43321411df330eded3271a921b18574a26d..9631558b72f9b30b510f23a391d77c61c0541bd5:/src/smpi/colls/smpi_openmpi_selector.c diff --git a/src/smpi/colls/smpi_openmpi_selector.c b/src/smpi/colls/smpi_openmpi_selector.c index 13e5a41ebb..5d7d5afa15 100644 --- a/src/smpi/colls/smpi_openmpi_selector.c +++ b/src/smpi/colls/smpi_openmpi_selector.c @@ -131,12 +131,12 @@ int smpi_coll_tuned_bcast_ompi(void *buff, int count, messages up to 36MB and communicator sizes up to 64 nodes */ const size_t small_message_size = 2048; const size_t intermediate_message_size = 370728; - //const double a_p16 = 3.2118e-6; /* [1 / byte] */ - //const double b_p16 = 8.7936; - //const double a_p64 = 2.3679e-6; /* [1 / byte] */ - //const double b_p64 = 1.1787; - //const double a_p128 = 1.6134e-6; /* [1 / byte] */ - //const double b_p128 = 2.1102; + const double a_p16 = 3.2118e-6; /* [1 / byte] */ + const double b_p16 = 8.7936; + const double a_p64 = 2.3679e-6; /* [1 / byte] */ + const double b_p64 = 1.1787; + const double a_p128 = 1.6134e-6; /* [1 / byte] */ + const double b_p128 = 2.1102; int communicator_size; //int segsize = 0; @@ -160,36 +160,35 @@ int smpi_coll_tuned_bcast_ompi(void *buff, int count, return smpi_coll_tuned_bcast_ompi_split_bintree(buff, count, datatype, root, comm); - } /* - Handle large message sizes + } + //Handle large message sizes else if (communicator_size < (a_p128 * message_size + b_p128)) { - Pipeline with 128KB segments - segsize = 1024 << 7; - return smpi_coll_tuned_bcast_flattree_pipeline (buff, count, datatype, - root, comm, module, - segsize); + //Pipeline with 128KB segments + //segsize = 1024 << 7; + return smpi_coll_tuned_bcast_ompi_pipeline (buff, count, datatype, + root, comm); + - }*/ else if (communicator_size < 13) { + } else if (communicator_size < 13) { // Split Binary with 8KB segments return smpi_coll_tuned_bcast_ompi_split_bintree(buff, count, datatype, root, comm); - } /*else if (communicator_size < (a_p64 * message_size + b_p64)) { + } else if (communicator_size < (a_p64 * message_size + b_p64)) { // Pipeline with 64KB segments - segsize = 1024 << 6; - return smpi_coll_tuned_bcast_intra_pipeline (buff, count, datatype, - root, comm, module, - segsize); + //segsize = 1024 << 6; + return smpi_coll_tuned_bcast_ompi_pipeline (buff, count, datatype, + root, comm); + } else if (communicator_size < (a_p16 * message_size + b_p16)) { - Pipeline with 16KB segments + //Pipeline with 16KB segments //segsize = 1024 << 4; - return smpi_coll_tuned_bcast_flattree_pipeline (buff, count, datatype, - root, comm, module, - segsize); - - }*/ + return smpi_coll_tuned_bcast_ompi_pipeline (buff, count, datatype, + root, comm); + + } /* Pipeline with 8KB segments */ //segsize = 1024 << 3; return smpi_coll_tuned_bcast_flattree_pipeline (buff, count, datatype,