X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6476a16657a34172e7d1098f581c8f920ba7f791..731c4a5371dc691c8eb833f7d4617c7a94f91680:/src/smpi/smpi_coll.c diff --git a/src/smpi/smpi_coll.c b/src/smpi/smpi_coll.c deleted file mode 100644 index 4e1fdea6de..0000000000 --- a/src/smpi/smpi_coll.c +++ /dev/null @@ -1,397 +0,0 @@ -/* smpi_coll.c -- various optimized routing for collectives */ - -/* Copyright (c) 2009-2015. The SimGrid Team. - * All rights reserved. */ - -/* This program is free software; you can redistribute it and/or modify it - * under the terms of the license (GNU LGPL) which comes with this package. */ - -#include -#include -#include - -#include "private.h" -#include "colls/colls.h" -#include "simgrid/sg_config.h" - -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_coll, smpi, - "Logging specific to SMPI (coll)"); - -s_mpi_coll_description_t mpi_coll_gather_description[] = { - {"default", - "gather default collective", - smpi_mpi_gather}, -COLL_GATHERS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - - -s_mpi_coll_description_t mpi_coll_allgather_description[] = { - {"default", - "allgather default collective", - smpi_mpi_allgather}, -COLL_ALLGATHERS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_allgatherv_description[] = { - {"default", - "allgatherv default collective", - smpi_mpi_allgatherv}, -COLL_ALLGATHERVS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_allreduce_description[] = { - {"default", - "allreduce default collective", - smpi_mpi_allreduce}, -COLL_ALLREDUCES(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_reduce_scatter_description[] = { - {"default", - "reduce_scatter default collective", - smpi_mpi_reduce_scatter}, -COLL_REDUCE_SCATTERS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_scatter_description[] = { - {"default", - "scatter default collective", - smpi_mpi_scatter}, -COLL_SCATTERS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_barrier_description[] = { - {"default", - "barrier default collective", - smpi_mpi_barrier}, -COLL_BARRIERS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; -s_mpi_coll_description_t mpi_coll_alltoall_description[] = { - {"default", - "Ompi alltoall default collective", - smpi_coll_tuned_alltoall_ompi2}, -COLL_ALLTOALLS(COLL_DESCRIPTION, COLL_COMMA), - {"bruck", - "Alltoall Bruck (SG) collective", - smpi_coll_tuned_alltoall_bruck}, - {"basic_linear", - "Alltoall basic linear (SG) collective", - smpi_coll_tuned_alltoall_basic_linear}, - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_alltoallv_description[] = { - {"default", - "Ompi alltoallv default collective", - smpi_coll_basic_alltoallv}, -COLL_ALLTOALLVS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_bcast_description[] = { - {"default", - "bcast default collective ", - smpi_mpi_bcast}, -COLL_BCASTS(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - -s_mpi_coll_description_t mpi_coll_reduce_description[] = { - {"default", - "reduce default collective", - smpi_mpi_reduce}, -COLL_REDUCES(COLL_DESCRIPTION, COLL_COMMA), - {NULL, NULL, NULL} /* this array must be NULL terminated */ -}; - - - -/** Displays the long description of all registered models, and quit */ -void coll_help(const char *category, s_mpi_coll_description_t * table) -{ - int i; - printf("Long description of the %s models accepted by this simulator:\n", - category); - for (i = 0; table[i].name; i++) - printf(" %s: %s\n", table[i].name, table[i].description); -} - -int find_coll_description(s_mpi_coll_description_t * table, - char *name, const char *desc) -{ - int i; - char *name_list = NULL; - int selector_on=0; - if(name==NULL){//no argument provided, use active selector's algorithm - name=(char*)sg_cfg_get_string("smpi/coll_selector"); - selector_on=1; - } - for (i = 0; table[i].name; i++) - if (!strcmp(name, table[i].name)) { - if (strcmp(table[i].name,"default")) - XBT_INFO("Switch to algorithm %s for collective %s",table[i].name,desc); - return i; - } - - if(selector_on){ - // collective seems not handled by the active selector, try with default one - name=(char*)"default"; - for (i = 0; table[i].name; i++) - if (!strcmp(name, table[i].name)) { - return i; - } - } - if (!table[0].name) - xbt_die("No collective is valid for '%s'! This is a bug.",name); - name_list = xbt_strdup(table[0].name); - for (i = 1; table[i].name; i++) { - name_list = - xbt_realloc(name_list, - strlen(name_list) + strlen(table[i].name) + 3); - strcat(name_list, ", "); - strcat(name_list, table[i].name); - } - xbt_die("Collective '%s' is invalid! Valid collectives are: %s.", name, name_list); - return -1; -} - -int (*mpi_coll_gather_fun)(void *, int, MPI_Datatype, void*, int, MPI_Datatype, int root, MPI_Comm); -int (*mpi_coll_allgather_fun)(void *, int, MPI_Datatype, void*, int, MPI_Datatype, MPI_Comm); -int (*mpi_coll_allgatherv_fun)(void *, int, MPI_Datatype, void*, int*, int*, MPI_Datatype, MPI_Comm); -int (*mpi_coll_allreduce_fun)(void *sbuf, void *rbuf, int rcount, MPI_Datatype dtype, MPI_Op op, MPI_Comm comm); -int (*mpi_coll_alltoall_fun)(void *, int, MPI_Datatype, void*, int, MPI_Datatype, MPI_Comm); -int (*mpi_coll_alltoallv_fun)(void *, int*, int*, MPI_Datatype, void*, int*, int*, MPI_Datatype, MPI_Comm); -int (*mpi_coll_bcast_fun)(void *buf, int count, MPI_Datatype datatype, int root, MPI_Comm com); -int (*mpi_coll_reduce_fun)(void *buf, void *rbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm); -int (*mpi_coll_reduce_scatter_fun)(void *sbuf, void *rbuf, int *rcounts,MPI_Datatype dtype,MPI_Op op,MPI_Comm comm); -int (*mpi_coll_scatter_fun)(void *sendbuf, int sendcount, MPI_Datatype sendtype,void *recvbuf, int recvcount, MPI_Datatype recvtype,int root, MPI_Comm comm); -int (*mpi_coll_barrier_fun)(MPI_Comm comm); - - -int smpi_coll_tuned_alltoall_ompi2(void *sendbuf, int sendcount, - MPI_Datatype sendtype, void *recvbuf, - int recvcount, MPI_Datatype recvtype, - MPI_Comm comm) -{ - int size, sendsize; - size = smpi_comm_size(comm); - sendsize = smpi_datatype_size(sendtype) * sendcount; - if (sendsize < 200 && size > 12) { - return - smpi_coll_tuned_alltoall_bruck(sendbuf, sendcount, sendtype, - recvbuf, recvcount, recvtype, - comm); - } else if (sendsize < 3000) { - return - smpi_coll_tuned_alltoall_basic_linear(sendbuf, sendcount, - sendtype, recvbuf, - recvcount, recvtype, comm); - } else { - return - smpi_coll_tuned_alltoall_ring(sendbuf, sendcount, sendtype, - recvbuf, recvcount, recvtype, - comm); - } -} - -/** - * Alltoall Bruck - * - * Openmpi calls this routine when the message size sent to each rank < 2000 bytes and size < 12 - * FIXME: uh, check smpi_pmpi again, but this routine is called for > 12, not - * less... - **/ -int smpi_coll_tuned_alltoall_bruck(void *sendbuf, int sendcount, - MPI_Datatype sendtype, void *recvbuf, - int recvcount, MPI_Datatype recvtype, - MPI_Comm comm) -{ - int system_tag = 777; - int i, rank, size, err, count; - MPI_Aint lb; - MPI_Aint sendext = 0; - MPI_Aint recvext = 0; - MPI_Request *requests; - - // FIXME: check implementation - rank = smpi_comm_rank(comm); - size = smpi_comm_size(comm); - XBT_DEBUG("<%d> algorithm alltoall_bruck() called.", rank); - smpi_datatype_extent(sendtype, &lb, &sendext); - smpi_datatype_extent(recvtype, &lb, &recvext); - /* Local copy from self */ - err = - smpi_datatype_copy((char *)sendbuf + rank * sendcount * sendext, - sendcount, sendtype, - (char *)recvbuf + rank * recvcount * recvext, - recvcount, recvtype); - if (err == MPI_SUCCESS && size > 1) { - /* Initiate all send/recv to/from others. */ - requests = xbt_new(MPI_Request, 2 * (size - 1)); - count = 0; - /* Create all receives that will be posted first */ - for (i = 0; i < size; ++i) { - if (i == rank) { - XBT_DEBUG("<%d> skip request creation [src = %d, recvcount = %d]", - rank, i, recvcount); - continue; - } - requests[count] = - smpi_irecv_init((char *)recvbuf + i * recvcount * recvext, recvcount, - recvtype, i, system_tag, comm); - count++; - } - /* Now create all sends */ - for (i = 0; i < size; ++i) { - if (i == rank) { - XBT_DEBUG("<%d> skip request creation [dst = %d, sendcount = %d]", - rank, i, sendcount); - continue; - } - requests[count] = - smpi_isend_init((char *)sendbuf + i * sendcount * sendext, sendcount, - sendtype, i, system_tag, comm); - count++; - } - /* Wait for them all. */ - smpi_mpi_startall(count, requests); - XBT_DEBUG("<%d> wait for %d requests", rank, count); - smpi_mpi_waitall(count, requests, MPI_STATUS_IGNORE); - for(i = 0; i < count; i++) { - if(requests[i]!=MPI_REQUEST_NULL) smpi_mpi_request_free(&requests[i]); - } - xbt_free(requests); - } - return MPI_SUCCESS; -} - -/** - * Alltoall basic_linear (STARMPI:alltoall-simple) - **/ -int smpi_coll_tuned_alltoall_basic_linear(void *sendbuf, int sendcount, - MPI_Datatype sendtype, - void *recvbuf, int recvcount, - MPI_Datatype recvtype, - MPI_Comm comm) -{ - int system_tag = 888; - int i, rank, size, err, count; - MPI_Aint lb = 0, sendext = 0, recvext = 0; - MPI_Request *requests; - - /* Initialize. */ - rank = smpi_comm_rank(comm); - size = smpi_comm_size(comm); - XBT_DEBUG("<%d> algorithm alltoall_basic_linear() called.", rank); - smpi_datatype_extent(sendtype, &lb, &sendext); - smpi_datatype_extent(recvtype, &lb, &recvext); - /* simple optimization */ - err = smpi_datatype_copy((char *)sendbuf + rank * sendcount * sendext, - sendcount, sendtype, - (char *)recvbuf + rank * recvcount * recvext, - recvcount, recvtype); - if (err == MPI_SUCCESS && size > 1) { - /* Initiate all send/recv to/from others. */ - requests = xbt_new(MPI_Request, 2 * (size - 1)); - /* Post all receives first -- a simple optimization */ - count = 0; - for (i = (rank + 1) % size; i != rank; i = (i + 1) % size) { - requests[count] = - smpi_irecv_init((char *)recvbuf + i * recvcount * recvext, recvcount, - recvtype, i, system_tag, comm); - count++; - } - /* Now post all sends in reverse order - * - We would like to minimize the search time through message queue - * when messages actually arrive in the order in which they were posted. - * TODO: check the previous assertion - */ - for (i = (rank + size - 1) % size; i != rank; i = (i + size - 1) % size) { - requests[count] = - smpi_isend_init((char *)sendbuf + i * sendcount * sendext, sendcount, - sendtype, i, system_tag, comm); - count++; - } - /* Wait for them all. */ - smpi_mpi_startall(count, requests); - XBT_DEBUG("<%d> wait for %d requests", rank, count); - smpi_mpi_waitall(count, requests, MPI_STATUS_IGNORE); - for(i = 0; i < count; i++) { - if(requests[i]!=MPI_REQUEST_NULL) smpi_mpi_request_free(&requests[i]); - } - xbt_free(requests); - } - return err; -} - -int smpi_coll_basic_alltoallv(void *sendbuf, int *sendcounts, - int *senddisps, MPI_Datatype sendtype, - void *recvbuf, int *recvcounts, - int *recvdisps, MPI_Datatype recvtype, - MPI_Comm comm) -{ - int system_tag = 889; - int i, rank, size, err, count; - MPI_Aint lb = 0, sendext = 0, recvext = 0; - MPI_Request *requests; - - /* Initialize. */ - rank = smpi_comm_rank(comm); - size = smpi_comm_size(comm); - XBT_DEBUG("<%d> algorithm basic_alltoallv() called.", rank); - smpi_datatype_extent(sendtype, &lb, &sendext); - smpi_datatype_extent(recvtype, &lb, &recvext); - /* Local copy from self */ - err = - smpi_datatype_copy((char *)sendbuf + senddisps[rank] * sendext, - sendcounts[rank], sendtype, - (char *)recvbuf + recvdisps[rank] * recvext, - recvcounts[rank], recvtype); - if (err == MPI_SUCCESS && size > 1) { - /* Initiate all send/recv to/from others. */ - requests = xbt_new(MPI_Request, 2 * (size - 1)); - count = 0; - /* Create all receives that will be posted first */ - for (i = 0; i < size; ++i) { - if (i == rank || recvcounts[i] == 0) { - XBT_DEBUG - ("<%d> skip request creation [src = %d, recvcounts[src] = %d]", - rank, i, recvcounts[i]); - continue; - } - requests[count] = - smpi_irecv_init((char *)recvbuf + recvdisps[i] * recvext, - recvcounts[i], recvtype, i, system_tag, comm); - count++; - } - /* Now create all sends */ - for (i = 0; i < size; ++i) { - if (i == rank || sendcounts[i] == 0) { - XBT_DEBUG - ("<%d> skip request creation [dst = %d, sendcounts[dst] = %d]", - rank, i, sendcounts[i]); - continue; - } - requests[count] = - smpi_isend_init((char *)sendbuf + senddisps[i] * sendext, - sendcounts[i], sendtype, i, system_tag, comm); - count++; - } - /* Wait for them all. */ - smpi_mpi_startall(count, requests); - XBT_DEBUG("<%d> wait for %d requests", rank, count); - smpi_mpi_waitall(count, requests, MPI_STATUS_IGNORE); - for(i = 0; i < count; i++) { - if(requests[i]!=MPI_REQUEST_NULL) smpi_mpi_request_free(&requests[i]); - } - xbt_free(requests); - } - return err; -}