19748e6957
1. Change in rte api implementation: now comm_world used to do p2p. This allows to not worry about other comms being destroyed. 2. added a notification mechanism with a help of which runtime can say libhcoll that RTE api can not be used any longer. pass a pointer to a flag, and its size to libhcoll. The flag changes when the RTE is no longer available. Currently this flag is just ompi_mpi_finalized global bool value. cmr=v1.7.3:reviewer=jladd This commit was SVN r29331.
253 строки
8.6 KiB
C
253 строки
8.6 KiB
C
/**
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Copyright (c) 2011 Mellanox Technologies. All rights reserved.
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$COPYRIGHT$
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Additional copyrights may follow
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$HEADER$
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*/
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#include "ompi_config.h"
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#include "coll_hcoll.h"
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/*
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* Initial query function that is invoked during MPI_INIT, allowing
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* this module to indicate what level of thread support it provides.
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*/
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int mca_coll_hcoll_init_query(bool enable_progress_threads, bool enable_mpi_threads)
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{
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return OMPI_SUCCESS;
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}
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static void mca_coll_hcoll_module_clear(mca_coll_hcoll_module_t *hcoll_module)
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{
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hcoll_module->hcoll_context = NULL;
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hcoll_module->previous_barrier = NULL;
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hcoll_module->previous_bcast = NULL;
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hcoll_module->previous_reduce = NULL;
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hcoll_module->previous_allreduce = NULL;
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hcoll_module->previous_allgather = NULL;
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hcoll_module->previous_allgatherv = NULL;
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hcoll_module->previous_gather = NULL;
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hcoll_module->previous_gatherv = NULL;
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hcoll_module->previous_alltoall = NULL;
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hcoll_module->previous_alltoallv = NULL;
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hcoll_module->previous_alltoallw = NULL;
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hcoll_module->previous_reduce_scatter = NULL;
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hcoll_module->previous_ibarrier = NULL;
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hcoll_module->previous_ibcast = NULL;
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hcoll_module->previous_iallreduce = NULL;
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hcoll_module->previous_iallgather = NULL;
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}
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static void mca_coll_hcoll_module_construct(mca_coll_hcoll_module_t *hcoll_module)
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{
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mca_coll_hcoll_module_clear(hcoll_module);
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}
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static void mca_coll_hcoll_module_destruct(mca_coll_hcoll_module_t *hcoll_module)
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{
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OBJ_RELEASE(hcoll_module->previous_barrier_module);
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OBJ_RELEASE(hcoll_module->previous_bcast_module);
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OBJ_RELEASE(hcoll_module->previous_reduce_module);
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OBJ_RELEASE(hcoll_module->previous_allreduce_module);
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OBJ_RELEASE(hcoll_module->previous_allgather_module);
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OBJ_RELEASE(hcoll_module->previous_allgatherv_module);
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OBJ_RELEASE(hcoll_module->previous_gather_module);
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OBJ_RELEASE(hcoll_module->previous_gatherv_module);
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OBJ_RELEASE(hcoll_module->previous_alltoall_module);
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OBJ_RELEASE(hcoll_module->previous_alltoallv_module);
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OBJ_RELEASE(hcoll_module->previous_alltoallw_module);
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OBJ_RELEASE(hcoll_module->previous_reduce_scatter_module);
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OBJ_RELEASE(hcoll_module->previous_ibarrier_module);
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OBJ_RELEASE(hcoll_module->previous_ibcast_module);
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OBJ_RELEASE(hcoll_module->previous_iallreduce_module);
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OBJ_RELEASE(hcoll_module->previous_iallgather_module);
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hcoll_destroy_context(hcoll_module->hcoll_context,
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(rte_grp_handle_t) hcoll_module->comm);
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mca_coll_hcoll_module_clear(hcoll_module);
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}
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#define HCOL_SAVE_PREV_COLL_API(__api) do {\
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hcoll_module->previous_ ## __api = comm->c_coll.coll_ ## __api;\
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hcoll_module->previous_ ## __api ## _module = comm->c_coll.coll_ ## __api ## _module;\
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if (!comm->c_coll.coll_ ## __api || !comm->c_coll.coll_ ## __api ## _module) {\
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return OMPI_ERROR;\
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}\
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OBJ_RETAIN(hcoll_module->previous_ ## __api ## _module);\
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} while(0)
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static int __save_coll_handlers(mca_coll_hcoll_module_t *hcoll_module)
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{
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ompi_communicator_t *comm = hcoll_module->comm;
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HCOL_SAVE_PREV_COLL_API(barrier);
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HCOL_SAVE_PREV_COLL_API(bcast);
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HCOL_SAVE_PREV_COLL_API(reduce);
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HCOL_SAVE_PREV_COLL_API(allreduce);
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HCOL_SAVE_PREV_COLL_API(allgather);
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HCOL_SAVE_PREV_COLL_API(allgatherv);
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HCOL_SAVE_PREV_COLL_API(gather);
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HCOL_SAVE_PREV_COLL_API(gatherv);
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HCOL_SAVE_PREV_COLL_API(alltoall);
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HCOL_SAVE_PREV_COLL_API(alltoallv);
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HCOL_SAVE_PREV_COLL_API(alltoallw);
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HCOL_SAVE_PREV_COLL_API(reduce_scatter);
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HCOL_SAVE_PREV_COLL_API(ibarrier);
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HCOL_SAVE_PREV_COLL_API(ibcast);
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HCOL_SAVE_PREV_COLL_API(iallreduce);
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HCOL_SAVE_PREV_COLL_API(iallgather);
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return OMPI_SUCCESS;
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}
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/*
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* Initialize module on the communicator
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*/
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static int mca_coll_hcoll_module_enable(mca_coll_base_module_t *module,
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struct ompi_communicator_t *comm)
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{
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mca_coll_hcoll_module_t *hcoll_module = (mca_coll_hcoll_module_t*) module;
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hcoll_module->comm = comm;
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if (OMPI_SUCCESS != __save_coll_handlers(hcoll_module)){
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HCOL_ERROR("coll_hcol: __save_coll_handlers failed");
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return OMPI_ERROR;
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}
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hcoll_set_runtime_tag_offset(-100,mca_pml.pml_max_tag);
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hcoll_set_rte_halt_flag_address(&ompi_mpi_finalized);
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hcoll_set_rte_halt_flag_size(sizeof(ompi_mpi_finalized));
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hcoll_module->hcoll_context =
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hcoll_create_context((rte_grp_handle_t)comm);
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if (NULL == hcoll_module->hcoll_context){
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HCOL_VERBOSE(1,"hcoll_create_context returned NULL");
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return OMPI_ERROR;
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}
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#if 0
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{
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printf("\033[33mrank %d: DOING EXTRA TEST\033[0m\n",ompi_comm_rank(comm));
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fflush(stdout);
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sleep(1);
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rte_ec_handle_t handle;
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rte_grp_handle_t world_group = hcoll_rte_functions.rte_world_group_fn();
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int peer;
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const int max_count = 10000000;
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const int step = max_count/100;
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int buf = 0;
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int i;
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rte_request_handle_t req;
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peer = (ompi_comm_rank(comm)+1)%2;
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hcoll_rte_functions.get_ec_handles_fn(1,&peer,world_group,&handle);
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for (i=1; i<max_count+1; i++){
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if (0 == ompi_comm_rank(comm)){
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if (i/step*step == i){
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printf("%d %% done...\n",i/step);fflush(stdout);
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}
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buf = 1;
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hcoll_rte_functions.send_fn(DTE_INT32,1,&buf,handle,world_group,0,&req);
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} else {
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hcoll_rte_functions.recv_fn(DTE_INT32,1,&buf,handle,world_group,0,&req);
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}
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int completed = 0;
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hcoll_rte_functions.test_fn(&req,&completed);
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while(!completed){
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hcoll_rte_functions.test_fn(&req,&completed);
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/*hcoll_rte_functions.rte_progress_fn();*/
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opal_progress();
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}
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}
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printf("\033[32mrank %d: EXTRA TEST PASS\033[0m\n",ompi_comm_rank(comm));
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fflush(stdout);
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sleep(1);
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}
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#endif
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return OMPI_SUCCESS;
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}
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/*
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* Invoked when there's a new communicator that has been created.
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* Look at the communicator and decide which set of functions and
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* priority we want to return.
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*/
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mca_coll_base_module_t *
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mca_coll_hcoll_comm_query(struct ompi_communicator_t *comm, int *priority)
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{
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mca_coll_base_module_t *module;
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mca_coll_hcoll_module_t *hcoll_module;
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static bool libhcoll_initialized = false;
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*priority = 0;
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module = NULL;
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if (!mca_coll_hcoll_component.hcoll_enable){
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goto exit;
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}
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if (!libhcoll_initialized)
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{
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/* libhcoll should be initialized here since current implmentation of
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mxm bcol in libhcoll needs world_group fully functional during init
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world_group, i.e. ompi_comm_world, is not ready at hcoll component open
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call */
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opal_progress_register(hcoll_progress_fn);
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int rc = hcoll_init();
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if (HCOLL_SUCCESS != rc){
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mca_coll_hcoll_component.hcoll_enable = 0;
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opal_progress_unregister(hcoll_progress_fn);
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HCOL_VERBOSE(0,"Hcol library init failed");
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return NULL;
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}
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libhcoll_initialized = true;
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}
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hcoll_module = OBJ_NEW(mca_coll_hcoll_module_t);
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if (!hcoll_module){
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goto exit;
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}
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if (ompi_comm_size(comm) < 2 || OMPI_COMM_IS_INTER(comm)){
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goto exit;
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}
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hcoll_module->super.coll_module_enable = mca_coll_hcoll_module_enable;
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hcoll_module->super.coll_barrier = hcoll_collectives.coll_barrier ? mca_coll_hcoll_barrier : NULL;
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hcoll_module->super.coll_bcast = hcoll_collectives.coll_bcast ? mca_coll_hcoll_bcast : NULL;
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hcoll_module->super.coll_allgather = hcoll_collectives.coll_allgather ? mca_coll_hcoll_allgather : NULL;
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hcoll_module->super.coll_allreduce = hcoll_collectives.coll_allreduce ? mca_coll_hcoll_allreduce : NULL;
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hcoll_module->super.coll_alltoall = /*hcoll_collectives.coll_alltoall ? mca_coll_hcoll_alltoall : */ NULL;
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hcoll_module->super.coll_ibarrier = hcoll_collectives.coll_ibarrier ? mca_coll_hcoll_ibarrier : NULL;
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hcoll_module->super.coll_ibcast = hcoll_collectives.coll_ibcast ? mca_coll_hcoll_ibcast : NULL;
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hcoll_module->super.coll_iallgather = hcoll_collectives.coll_iallgather ? mca_coll_hcoll_iallgather : NULL;
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hcoll_module->super.coll_iallreduce = hcoll_collectives.coll_iallreduce ? mca_coll_hcoll_iallreduce : NULL;
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*priority = mca_coll_hcoll_component.hcoll_priority;
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module = &hcoll_module->super;
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exit:
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return module;
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}
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OBJ_CLASS_INSTANCE(mca_coll_hcoll_module_t,
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mca_coll_base_module_t,
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mca_coll_hcoll_module_construct,
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mca_coll_hcoll_module_destruct);
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