diff options
Diffstat (limited to 'src/H5FDmpiposix.c')
| -rw-r--r-- | src/H5FDmpiposix.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/H5FDmpiposix.c b/src/H5FDmpiposix.c index 4920ade..8bca0bf 100644 --- a/src/H5FDmpiposix.c +++ b/src/H5FDmpiposix.c @@ -224,6 +224,7 @@ static const H5FD_class_t H5FD_mpiposix_g = { H5FD_FLMAP_SINGLE /*fl_map */ }; +#ifdef OLD_METADATA_WRITE /* Global var to allow elimination of redundant metadata writes * to be controlled by the value of an environment variable. */ /* Use the elimination by default unless this is the Intel Red machine */ @@ -232,6 +233,7 @@ hbool_t H5_mpiposix_1_metawrite_g = TRUE; #else hbool_t H5_mpiposix_1_metawrite_g = FALSE; #endif +#endif /* OLD_METADATA_WRITE */ /* Interface initialization */ #define PABLO_MASK H5FD_mpiposix_mask @@ -1424,7 +1426,9 @@ H5FD_mpiposix_write(H5FD_t *_file, H5FD_mem_t type, hid_t dxpl_id, haddr_t addr, HMPI_GOTO_ERROR(FAIL, "MPI_Barrier failed", mpi_code); /* Only p<round> will do the actual write if all procs in comm write same metadata */ +#ifdef OLD_METADATA_WRITE if (H5_mpiposix_1_metawrite_g) +#endif /* OLD_METADATA_WRITE */ if (file->mpi_rank != H5_PAR_META_WRITE) HGOTO_DONE(SUCCEED) /* skip the actual write */ } /* end if */ @@ -1498,11 +1502,19 @@ done: } /* end if */ /* Guard against getting into metadata broadcast in failure cases */ else { +#ifdef OLD_METADATA_WRITE /* if only p<round> writes, need to broadcast the ret_value to other processes */ if ((type!=H5FD_MEM_DRAW) && H5_mpiposix_1_metawrite_g) { if (MPI_SUCCESS != (mpi_code= MPI_Bcast(&ret_value, sizeof(ret_value), MPI_BYTE, H5_PAR_META_WRITE, file->comm))) HMPI_GOTO_ERROR(FAIL, "MPI_Bcast failed", mpi_code); } /* end if */ +#else /* OLD_METADATA_WRITE */ + /* if only p<round> writes, need to broadcast the ret_value to other processes */ + if (type!=H5FD_MEM_DRAW) { + if (MPI_SUCCESS != (mpi_code= MPI_Bcast(&ret_value, sizeof(ret_value), MPI_BYTE, H5_PAR_META_WRITE, file->comm))) + HMPI_GOTO_ERROR(FAIL, "MPI_Bcast failed", mpi_code); + } /* end if */ +#endif /* OLD_METADATA_WRITE */ } /* end else */ FUNC_LEAVE_NOAPI(ret_value); |