diff options
Diffstat (limited to 'src/H5Dio.c')
| -rw-r--r-- | src/H5Dio.c | 60 |
1 files changed, 57 insertions, 3 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c index 8d41960..470520e 100644 --- a/src/H5Dio.c +++ b/src/H5Dio.c @@ -1190,7 +1190,7 @@ H5D__ioinfo_adjust(H5D_io_info_t *io_info, const H5D_t *dset, hid_t dxpl_id, HGOTO_ERROR(H5E_DATASPACE, H5E_CANTGET, FAIL, "can't retrieve MPI communicator") /* Check if we can set direct MPI-IO read/write functions */ - if((opt = H5D__mpio_opt_possible(io_info, file_space, mem_space, type_info, fm, dx_plist)) < 0) + if((opt = H5D__mpio_opt_possible(io_info, file_space, mem_space, type_info, dx_plist)) < 0) HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "invalid check for direct IO dataspace ") /* Check if we can use the optimized parallel I/O routines */ @@ -1206,8 +1206,62 @@ H5D__ioinfo_adjust(H5D_io_info_t *io_info, const H5D_t *dset, hid_t dxpl_id, * we cannot break to independent I/O if this is a write operation; * otherwise there will be metadata inconsistencies in the file. */ - if (io_info->op_type == H5D_IO_OP_WRITE && io_info->dset->shared->dcpl_cache.pline.nused > 0) - HGOTO_ERROR(H5E_IO, H5E_NO_INDEPENDENT, FAIL, "can't perform independent write with filters in pipeline") + if (io_info->op_type == H5D_IO_OP_WRITE && io_info->dset->shared->dcpl_cache.pline.nused > 0) { + H5D_mpio_no_collective_cause_t cause; + uint32_t local_no_collective_cause; + uint32_t global_no_collective_cause; + hbool_t local_error_message_previously_written = FALSE; + hbool_t global_error_message_previously_written = FALSE; + size_t index; + char local_no_collective_cause_string[256] = ""; + char global_no_collective_cause_string[256] = ""; + const char *cause_strings[] = { "independent I/O was requested", + "datatype conversions were required", + "data transforms needed to be applied", + "optimized MPI types flag wasn't set", + "one of the dataspaces was neither simple nor scalar", + "dataset was not contiguous or chunked" }; + + if (H5P_get(dx_plist, H5D_MPIO_LOCAL_NO_COLLECTIVE_CAUSE_NAME, &local_no_collective_cause) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get local no collective cause value") + if (H5P_get(dx_plist, H5D_MPIO_GLOBAL_NO_COLLECTIVE_CAUSE_NAME, &global_no_collective_cause) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get global no collective cause value") + + /* Append each of the reason for breaking collective I/O error messages to the + * local and global no collective cause strings */ + for (cause = 1, index = 0; cause < H5D_MPIO_NO_COLLECTIVE_MAX_CAUSE; cause <<= 1, index++) { + size_t cause_strlen = strlen(cause_strings[index]); + + if (cause & local_no_collective_cause) { + /* Check if there were any previous error messages included. If so, prepend a semicolon + * to separate the messages. + */ + if (local_error_message_previously_written) strncat(local_no_collective_cause_string, "; ", 2); + + strncat(local_no_collective_cause_string, cause_strings[index], cause_strlen); + + local_error_message_previously_written = TRUE; + } /* end if */ + + if (cause & global_no_collective_cause) { + /* Check if there were any previous error messages included. If so, prepend a semicolon + * to separate the messages. + */ + if (global_error_message_previously_written) strncat(global_no_collective_cause_string, "; ", 2); + + strncat(global_no_collective_cause_string, cause_strings[index], cause_strlen); + + global_error_message_previously_written = TRUE; + } /* end if */ + } /* end for */ + + HGOTO_ERROR(H5E_IO, H5E_NO_INDEPENDENT, FAIL, "Can't perform independent write with filters in pipeline.\n" + " The following caused a break from collective I/O:\n" + " Local causes: %s\n" + " Global causes: %s", + local_no_collective_cause_string, + global_no_collective_cause_string); + } /* end if */ /* If we won't be doing collective I/O, but the user asked for * collective I/O, change the request to use independent I/O, but |