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authorQuincey Koziol <koziol@hdfgroup.org>2003-10-06 15:17:09 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2003-10-06 15:17:09 (GMT)
commit98dfa67e89bb99f3baee80a1364e4f3555b03abd (patch)
tree444d960e451e821bbdaf53a9f5aa0b72f1466ffb /testpar
parent43c69e978bb5773be6046c9276f7e7dd762e9d22 (diff)
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[svn-r7551] Purpose:
Bug/feature fix. Description: Relax restriction on parallel writing to compact datasets to allow partial I/O. Updates to reference manual mentioning the issues involved are delayed until reference manual 'lock' is removed later this week. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to require h5committest
Diffstat (limited to 'testpar')
-rw-r--r--testpar/t_mdset.c26
1 files changed, 2 insertions, 24 deletions
diff --git a/testpar/t_mdset.c b/testpar/t_mdset.c
index 3d40307..3bbad86 100644
--- a/testpar/t_mdset.c
+++ b/testpar/t_mdset.c
@@ -105,15 +105,13 @@ void multiple_dset_write(char *filename, int ndatasets)
}
/* Example of using PHDF5 to create, write, and read compact dataset.
- * Hyperslab is prohibited for write.
*/
void compact_dataset(char *filename)
{
int i, j, mpi_size, mpi_rank, err_num=0;
hbool_t use_gpfs = FALSE;
- hid_t iof, plist, dcpl, dxpl, dataset, memspace, filespace;
- hssize_t chunk_origin [DIM];
- hsize_t chunk_dims [DIM], file_dims [DIM];
+ hid_t iof, plist, dcpl, dxpl, dataset, filespace;
+ hsize_t file_dims [DIM]={SIZE,SIZE};
hsize_t count[DIM]={1,1};
double outme [SIZE][SIZE], inme[SIZE][SIZE];
char dname[]="dataset";
@@ -127,11 +125,7 @@ void compact_dataset(char *filename)
plist = create_faccess_plist(MPI_COMM_WORLD, MPI_INFO_NULL, facc_type, use_gpfs);
iof = H5Fcreate (filename, H5F_ACC_TRUNC, H5P_DEFAULT, plist);
- /* decide the hyperslab according to process number. */
- get_slab(chunk_origin, chunk_dims, count, file_dims);
-
/* Define data space */
- memspace = H5Screate_simple (DIM, chunk_dims, NULL);
filespace = H5Screate_simple (DIM, file_dims, NULL);
/* Create a compact dataset */
@@ -145,27 +139,12 @@ void compact_dataset(char *filename)
dataset = H5Dcreate (iof, dname, H5T_NATIVE_DOUBLE, filespace, dcpl);
VRFY((dataset >= 0), "H5Dcreate succeeded");
- /* Define hyperslab */
- ret = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, chunk_origin, chunk_dims, count, chunk_dims);
- VRFY((ret>=0), "mdata hyperslab selection");
-
/* set up the collective transfer properties list */
dxpl = H5Pcreate (H5P_DATASET_XFER);
VRFY((dxpl >= 0), "");
ret=H5Pset_dxpl_mpio(dxpl, H5FD_MPIO_COLLECTIVE);
VRFY((ret >= 0), "H5Pcreate xfer succeeded");
- /* calculate data to write */
- for (i = 0; i < SIZE; i++)
- for (j = 0; j < SIZE; j++)
- outme [i][j] = (i+j)*1000 + mpi_rank;
-
- /* Test hyperslab writing. Supposed to fail */
- H5E_BEGIN_TRY {
- ret=H5Dwrite(dataset, H5T_NATIVE_DOUBLE, memspace, filespace, dxpl, outme);
- } H5E_END_TRY;
- VRFY((ret < 0), "H5Dwrite hyperslab write failed as expected");
-
/* Recalculate data to write. Each process writes the same data. */
for (i = 0; i < SIZE; i++)
for (j = 0; j < SIZE; j++)
@@ -178,7 +157,6 @@ void compact_dataset(char *filename)
H5Pclose (plist);
H5Dclose (dataset);
H5Sclose (filespace);
- H5Sclose (memspace);
H5Fclose (iof);
/* Open the file and dataset, read and compare the data. */