diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/H5Dmpio.c | 37 |
1 files changed, 17 insertions, 20 deletions
diff --git a/src/H5Dmpio.c b/src/H5Dmpio.c index 583abfd..c3a015d 100644 --- a/src/H5Dmpio.c +++ b/src/H5Dmpio.c @@ -331,8 +331,8 @@ done: /*------------------------------------------------------------------------- * Function: H5D__mpio_array_gather * - * Purpose: Given arrays by MPI ranks, gathers them into a single large - * array which is then distributed back to all ranks. If the + * Purpose: Given arrays by MPI ranks, gathers them into a single array + * which is then distributed back to all ranks. If the * sort_func argument is specified, the list is sorted before * being returned. * @@ -1275,9 +1275,6 @@ if(H5DEBUG(D)) * E. Perform the collective write * F. All processes collectively re-insert each modified * chunk from the gathered array into the chunk index - * 3. If the operation is a read operation - * A. Loop through each chunk in the operation - * I. * * * Return: Non-negative on success/Negative on failure @@ -1414,7 +1411,7 @@ H5D__link_chunk_filtered_collective_io(H5D_io_info_t *io_info, const H5D_type_in mpi_buf_count = (mem_type_is_derived && file_type_is_derived) ? (hsize_t) 1 : (hsize_t) 0; /* Set up the base storage address for this operation */ - ctg_store.contig.dset_addr = 0; + ctg_store.contig.dset_addr = 0; /* Write address must be set to address 0 */ io_info->store = &ctg_store; /* Perform I/O */ @@ -2558,7 +2555,7 @@ H5D__construct_filtered_io_info_list(const H5D_io_info_t *io_info, const H5D_typ const H5D_chunk_map_t *fm, H5D_filtered_collective_io_info_t **chunk_list, size_t *num_entries) { H5D_filtered_collective_io_info_t *local_info_array = NULL; /* The list of initially select chunks for this process */ - H5D_filtered_collective_io_info_t *overlap_info_array = NULL; /* The list of all chunks selected in the operation by all processes */ + H5D_filtered_collective_io_info_t *shared_chunks_info_array = NULL; /* The list of all chunks selected in the operation by all processes */ H5S_sel_iter_t *mem_iter = NULL; /* Memory iterator for H5D__gather_mem */ unsigned char *mod_data = NULL; /* Chunk modification data sent by a process to a chunk's owner */ H5SL_node_t *chunk_node; @@ -2567,7 +2564,7 @@ H5D__construct_filtered_io_info_list(const H5D_io_info_t *io_info, const H5D_typ hbool_t mem_iter_init = FALSE; size_t num_send_requests = 0; size_t num_chunks_selected; - size_t overlap_info_array_num_entries; + size_t shared_chunks_info_array_num_entries; size_t i; int mpi_rank, mpi_size, mpi_code; herr_t ret_value = SUCCEED; @@ -2632,13 +2629,13 @@ H5D__construct_filtered_io_info_list(const H5D_io_info_t *io_info, const H5D_typ HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "couldn't allocate memory iterator") if (H5D__mpio_array_gather(io_info, local_info_array, num_chunks_selected, - sizeof(*local_info_array), (void **) &overlap_info_array, &overlap_info_array_num_entries, + sizeof(*local_info_array), (void **) &shared_chunks_info_array, &shared_chunks_info_array_num_entries, H5D__cmp_filtered_collective_io_info_entry) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTGATHER, FAIL, "couldn't gather array") - for (i = 0, num_chunks_selected = 0, num_send_requests = 0; i < overlap_info_array_num_entries;) { + for (i = 0, num_chunks_selected = 0, num_send_requests = 0; i < shared_chunks_info_array_num_entries;) { H5D_filtered_collective_io_info_t chunk_entry; - haddr_t chunk_addr = overlap_info_array[i].old_chunk.offset; + haddr_t chunk_addr = shared_chunks_info_array[i].old_chunk.offset; size_t total_io_size = 0; size_t num_writers = 0; size_t max_bytes = 0; @@ -2662,22 +2659,22 @@ H5D__construct_filtered_io_info_list(const H5D_io_info_t *io_info, const H5D_typ * contributed will be the only one with a valid dataspace selection * on that particular process */ - if (mpi_rank == overlap_info_array[i].owner) - chunk_entry = overlap_info_array[i]; + if (mpi_rank == shared_chunks_info_array[i].owner) + chunk_entry = shared_chunks_info_array[i]; /* Add this chunk entry's IO size to the running total */ - total_io_size += overlap_info_array[i].io_size; + total_io_size += shared_chunks_info_array[i].io_size; /* New owner of the chunk is determined by the process * which is writing the most data to the chunk */ - if (overlap_info_array[i].io_size > max_bytes) { - max_bytes = overlap_info_array[i].io_size; - new_owner = overlap_info_array[i].owner; + if (shared_chunks_info_array[i].io_size > max_bytes) { + max_bytes = shared_chunks_info_array[i].io_size; + new_owner = shared_chunks_info_array[i].owner; } num_writers++; - } while (++i < overlap_info_array_num_entries && overlap_info_array[i].old_chunk.offset == chunk_addr); + } while (++i < shared_chunks_info_array_num_entries && shared_chunks_info_array[i].old_chunk.offset == chunk_addr); if (mpi_rank == new_owner) { hssize_t chunk_npoints; @@ -2700,7 +2697,7 @@ H5D__construct_filtered_io_info_list(const H5D_io_info_t *io_info, const H5D_typ chunk_entry.full_overwrite = (total_io_size >= (hsize_t) chunk_npoints * type_info->dst_type_size) ? TRUE : FALSE; /* New owner takes possession of the chunk */ - overlap_info_array[num_chunks_selected++] = chunk_entry; + shared_chunks_info_array[num_chunks_selected++] = chunk_entry; } /* end if */ else if (chunk_entry.chunk_info.fspace) { unsigned char *mod_data_p = NULL; /* Use second pointer since H5S_encode advances pointer */ @@ -2761,7 +2758,7 @@ H5D__construct_filtered_io_info_list(const H5D_io_info_t *io_info, const H5D_typ H5MM_free(local_info_array); /* Local info list becomes modified (redistributed) chunk list */ - local_info_array = overlap_info_array; + local_info_array = shared_chunks_info_array; } /* end if */ *chunk_list = local_info_array; |