static inline int create_iov_list(const void *addr, int count, ompi_datatype_t *datatype, ucx_iovec_t **ucx_iov, uint32_t *ucx_iov_count) { int ret = OMPI_SUCCESS; size_t size; bool done = false; opal_convertor_t convertor; uint32_t iov_count, iov_idx; struct iovec iov[OSC_UCX_IOVEC_MAX]; uint32_t ucx_iov_idx; OBJ_CONSTRUCT(&convertor, opal_convertor_t); ret = opal_convertor_copy_and_prepare_for_send(ompi_mpi_local_convertor, &datatype->super, count, addr, 0, &convertor); if (ret != OMPI_SUCCESS) { return ret; } (*ucx_iov_count) = 0; ucx_iov_idx = 0; do { iov_count = OSC_UCX_IOVEC_MAX; iov_idx = 0; done = opal_convertor_raw(&convertor, iov, &iov_count, &size); (*ucx_iov_count) += iov_count; (*ucx_iov) = (ucx_iovec_t *)realloc((*ucx_iov), (*ucx_iov_count) * sizeof(ucx_iovec_t)); if (*ucx_iov == NULL) { return OMPI_ERR_TEMP_OUT_OF_RESOURCE; } while (iov_idx != iov_count) { (*ucx_iov)[ucx_iov_idx].addr = iov[iov_idx].iov_base; (*ucx_iov)[ucx_iov_idx].len = iov[iov_idx].iov_len; ucx_iov_idx++; iov_idx++; } assert((*ucx_iov_count) == ucx_iov_idx); } while (!done); opal_convertor_cleanup(&convertor); OBJ_DESTRUCT(&convertor); return ret; }
static int test_upper( unsigned int length ) { ompi_datatype_t *pdt; opal_convertor_t * pConv; int rc = OMPI_SUCCESS; unsigned int i, iov_count, split_chunk, total_length; size_t max_data; struct iovec iov[5]; TIMER_DATA_TYPE start, end; long total_time; printf( "test upper matrix\n" ); pdt = upper_matrix( length ); /*dt_dump( pdt );*/ total_length = length * (length + 1) * ( sizeof(double) / 2); pConv = opal_convertor_create( remote_arch, 0 ); if( OMPI_SUCCESS != opal_convertor_prepare_for_send( pConv, &(pdt->super), 1, NULL ) ) { printf( "Cannot attach the datatype to a convertor\n" ); return OMPI_ERROR; } GET_TIME( start ); split_chunk = (length + 1) * sizeof(double); /* split_chunk = (total_length + 1) * sizeof(double); */ for( i = total_length; i > 0; ) { iov_count = 5; max_data = 0; opal_convertor_raw( pConv, iov, &iov_count, &max_data ); i -= max_data; } GET_TIME( end ); total_time = ELAPSED_TIME( start, end ); printf( "complete raw in %ld microsec\n", total_time ); /* test the automatic destruction pf the data */ ompi_datatype_destroy( &pdt ); assert( pdt == NULL ); OBJ_RELEASE( pConv ); return rc; }
/** * Conversion function. They deal with data-types in 3 ways, always making local copies. * In order to allow performance testings, there are 3 functions: * - one copying directly from one memory location to another one using the * data-type copy function. * - one which use a 2 convertors created with the same data-type * - and one using 2 convertors created from different data-types. * */ static int local_copy_ddt_raw( ompi_datatype_t* pdt, int count, int iov_num ) { struct iovec* iov; opal_convertor_t* convertor; TIMER_DATA_TYPE start, end; long total_time; uint32_t iov_count = iov_num; size_t max_data = 0, remaining_length; iov = (struct iovec*)malloc(iov_num * sizeof(struct iovec)); convertor = opal_convertor_create( remote_arch, 0 ); if( OMPI_SUCCESS != opal_convertor_prepare_for_send( convertor, &(pdt->super), count, NULL ) ) { printf( "Cannot attach the datatype to a convertor\n" ); return OMPI_ERROR; } remaining_length = count * pdt->super.size; GET_TIME( start ); while( 0 == opal_convertor_raw(convertor, iov, &iov_count, &max_data) ) { #if 0 printf( "New raw extraction (iov_count = %d, max_data = %zu)\n", iov_count, max_data ); for( i = 0; i < iov_count; i++ ) { printf( "\t{%p, %d}\n", iov[i].iov_base, iov[i].iov_len ); } #endif remaining_length -= max_data; iov_count = iov_num; } remaining_length -= max_data; GET_TIME( end ); total_time = ELAPSED_TIME( start, end ); printf( "raw extraction in %ld microsec\n", total_time ); OBJ_RELEASE( convertor ); if( remaining_length != 0 ) { printf( "Not all raw description was been extracted (%lu bytes missing)\n", (unsigned long) remaining_length ); } free(iov); return OMPI_SUCCESS; }
static inline int ompi_osc_rdma_gacc_master (ompi_osc_rdma_sync_t *sync, const void *source_buffer, int source_count, ompi_datatype_t *source_datatype, void *result_buffer, int result_count, ompi_datatype_t *result_datatype, ompi_osc_rdma_peer_t *peer, uint64_t target_address, mca_btl_base_registration_handle_t *target_handle, int target_count, ompi_datatype_t *target_datatype, ompi_op_t *op, ompi_osc_rdma_request_t *request) { ompi_osc_rdma_module_t *module = sync->module; struct iovec source_iovec[OMPI_OSC_RDMA_DECODE_MAX], target_iovec[OMPI_OSC_RDMA_DECODE_MAX]; const size_t acc_limit = (mca_osc_rdma_component.buffer_size >> 3); uint32_t source_primitive_count, target_primitive_count; opal_convertor_t source_convertor, target_convertor; uint32_t source_iov_count, target_iov_count; uint32_t source_iov_index, target_iov_index; ompi_datatype_t *source_primitive, *target_primitive; /* needed for opal_convertor_raw but not used */ size_t source_size, target_size; ompi_osc_rdma_request_t *subreq; size_t result_position; ptrdiff_t lb, extent; int ret, acc_len; bool done; (void) ompi_datatype_get_extent (target_datatype, &lb, &extent); target_address += lb; /* fast path for accumulate on built-in types */ if (OPAL_LIKELY((!source_count || ompi_datatype_is_predefined (source_datatype)) && ompi_datatype_is_predefined (target_datatype) && (!result_count || ompi_datatype_is_predefined (result_datatype)) && (target_datatype->super.size * target_count <= acc_limit))) { if (NULL == request) { OMPI_OSC_RDMA_REQUEST_ALLOC(module, peer, request); request->internal = true; request->type = result_datatype ? OMPI_OSC_RDMA_TYPE_GET_ACC : OMPI_OSC_RDMA_TYPE_ACC; } if (source_datatype) { (void) ompi_datatype_get_extent (source_datatype, &lb, &extent); source_buffer = (void *)((intptr_t) source_buffer + lb); } if (result_datatype) { (void) ompi_datatype_get_extent (result_datatype, &lb, &extent); result_buffer = (void *)((intptr_t) result_buffer + lb); } ret = ompi_osc_rdma_gacc_contig (sync, source_buffer, source_count, source_datatype, result_buffer, result_count, result_datatype, peer, target_address, target_handle, target_count, target_datatype, op, request); if (OPAL_LIKELY(OMPI_SUCCESS == ret)) { return OMPI_SUCCESS; } if (source_datatype) { /* the convertors will handle the lb */ (void) ompi_datatype_get_extent (source_datatype, &lb, &extent); source_buffer = (void *)((intptr_t) source_buffer - lb); } if (result_datatype) { (void) ompi_datatype_get_extent (result_datatype, &lb, &extent); result_buffer = (void *)((intptr_t) result_buffer - lb); } } /* the convertor will handle lb from here */ (void) ompi_datatype_get_extent (target_datatype, &lb, &extent); target_address -= lb; /* get the primitive datatype info */ ret = ompi_osc_base_get_primitive_type_info (target_datatype, &target_primitive, &target_primitive_count); if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) { /* target datatype is not made up of a single basic datatype */ return ret; } if (source_datatype) { ret = ompi_osc_base_get_primitive_type_info (source_datatype, &source_primitive, &source_primitive_count); if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) { /* target datatype is not made up of a single basic datatype */ return ret; } if (OPAL_UNLIKELY(source_primitive != target_primitive)) { return MPI_ERR_TYPE; } } /* prepare convertors for the source and target. these convertors will be used to determine the * contiguous segments within the source and target. */ /* the source may be NULL if using MPI_OP_NO_OP with MPI_Get_accumulate */ if (source_datatype) { OBJ_CONSTRUCT(&source_convertor, opal_convertor_t); ret = opal_convertor_copy_and_prepare_for_send (ompi_mpi_local_convertor, &source_datatype->super, source_count, source_buffer, 0, &source_convertor); if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) { return ret; } } /* target_datatype can never be NULL */ OBJ_CONSTRUCT(&target_convertor, opal_convertor_t); ret = opal_convertor_copy_and_prepare_for_send (ompi_mpi_local_convertor, &target_datatype->super, target_count, (void *) (intptr_t) target_address, 0, &target_convertor); if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) { return ret; } if (request) { /* keep the request from completing until all the transfers have started */ request->outstanding_requests = 1; } target_iov_index = 0; target_iov_count = 0; result_position = 0; do { /* decode segments of the source data */ source_iov_count = OMPI_OSC_RDMA_DECODE_MAX; source_iov_index = 0; /* opal_convertor_raw returns done when it has reached the end of the data */ if (!source_datatype) { done = true; source_iovec[0].iov_len = (size_t) -1; source_iovec[0].iov_base = NULL; source_iov_count = 1; } else { done = opal_convertor_raw (&source_convertor, source_iovec, &source_iov_count, &source_size); } /* loop on the target segments until we have exhaused the decoded source data */ while (source_iov_index != source_iov_count) { if (target_iov_index == target_iov_count) { /* decode segments of the target buffer */ target_iov_count = OMPI_OSC_RDMA_DECODE_MAX; target_iov_index = 0; (void) opal_convertor_raw (&target_convertor, target_iovec, &target_iov_count, &target_size); } /* we already checked that the target was large enough. this should be impossible */ assert (0 != target_iov_count); /* determine how much to put in this operation */ acc_len = min(target_iovec[target_iov_index].iov_len, source_iovec[source_iov_index].iov_len); acc_len = min((size_t) acc_len, acc_limit); /* execute the get */ OMPI_OSC_RDMA_REQUEST_ALLOC(module, peer, subreq); subreq->internal = true; subreq->parent_request = request; if (request) { (void) OPAL_THREAD_ADD32 (&request->outstanding_requests, 1); } if (result_datatype) { /* prepare a convertor for this part of the result */ opal_convertor_copy_and_prepare_for_recv (ompi_mpi_local_convertor, &result_datatype->super, result_count, result_buffer, 0, &subreq->convertor); opal_convertor_set_position (&subreq->convertor, &result_position); subreq->type = OMPI_OSC_RDMA_TYPE_GET_ACC; } else { subreq->type = OMPI_OSC_RDMA_TYPE_ACC; } OPAL_OUTPUT_VERBOSE((60, ompi_osc_base_framework.framework_output, "target index = %d, target = {%p, %lu}, source_index = %d, source = {%p, %lu}, result = %p, result position = %lu, " "acc_len = %d, count = %lu", target_iov_index, target_iovec[target_iov_index].iov_base, (unsigned long) target_iovec[target_iov_index].iov_len, source_iov_index, source_iovec[source_iov_index].iov_base, (unsigned long) source_iovec[source_iov_index].iov_len, result_buffer, (unsigned long) result_position, acc_len, (unsigned long)(acc_len / target_primitive->super.size))); ret = ompi_osc_rdma_gacc_contig (sync, source_iovec[source_iov_index].iov_base, acc_len / target_primitive->super.size, target_primitive, NULL, 0, NULL, peer, (uint64_t) (intptr_t) target_iovec[target_iov_index].iov_base, target_handle, acc_len / target_primitive->super.size, target_primitive, op, subreq); if (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) { if (OPAL_UNLIKELY(OMPI_ERR_OUT_OF_RESOURCE != ret)) { /* something bad happened. need to figure out how to handle these errors */ return ret; } /* progress and try again */ ompi_osc_rdma_progress (module); continue; } /* adjust io vectors */ target_iovec[target_iov_index].iov_len -= acc_len; source_iovec[source_iov_index].iov_len -= acc_len; target_iovec[target_iov_index].iov_base = (void *)((intptr_t) target_iovec[target_iov_index].iov_base + acc_len); source_iovec[source_iov_index].iov_base = (void *)((intptr_t) source_iovec[source_iov_index].iov_base + acc_len); result_position += acc_len; source_iov_index += !source_datatype || (0 == source_iovec[source_iov_index].iov_len); target_iov_index += (0 == target_iovec[target_iov_index].iov_len); } } while (!done); if (request) { /* release our reference so the request can complete */ (void) OPAL_THREAD_ADD32 (&request->outstanding_requests, -1); } if (source_datatype) { opal_convertor_cleanup (&source_convertor); OBJ_DESTRUCT(&source_convertor); } opal_convertor_cleanup (&target_convertor); OBJ_DESTRUCT(&target_convertor); return OMPI_SUCCESS; }