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-rw-r--r--src/H5D.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/H5D.c b/src/H5D.c
index d4f28db..b033e48 100644
--- a/src/H5D.c
+++ b/src/H5D.c
@@ -3196,10 +3196,12 @@ H5D_init_storage(H5D_t *dset, const H5S_t *space)
hsize_t addr; /* Offset in dataset */
void *buf = NULL; /* Buffer for fill value writing */
H5O_fill_t fill; /* Fill value information */
+ H5D_space_time_t space_time; /* When to allocate space */
H5P_genplist_t *plist; /* Property list */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOINIT(H5D_init_storage);
+
assert(dset);
assert(space);
@@ -3208,6 +3210,8 @@ H5D_init_storage(H5D_t *dset, const H5S_t *space)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset creation property list");
if(H5P_get(plist, H5D_CRT_FILL_VALUE_NAME, &fill) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get fill value");
+ if(H5P_get(plist, H5D_CRT_SPACE_TIME_NAME, &space_time) < 0)
+ HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't retrieve space allocation time");
switch (dset->layout.type) {
case H5D_CONTIGUOUS:
@@ -3252,12 +3256,15 @@ H5D_init_storage(H5D_t *dset, const H5S_t *space)
break;
case H5D_CHUNKED:
-#ifdef H5_HAVE_PARALLEL
/*
* If the dataset is accessed via parallel I/O, allocate file space
* for all chunks now and initialize each chunk with the fill value.
*/
- if (IS_H5FD_MPIO(dset->ent.file) || IS_H5FD_MPIPOSIX(dset->ent.file)) {
+ if (space_time==H5D_SPACE_ALLOC_EARLY
+#ifdef H5_HAVE_PARALLEL
+ || (IS_H5FD_MPIO(dset->ent.file) || IS_H5FD_MPIPOSIX(dset->ent.file))
+#endif /*H5_HAVE_PARALLEL*/
+ ) {
/* We only handle simple data spaces so far */
int ndims;
hsize_t dim[H5O_LAYOUT_NDIMS];
@@ -3271,13 +3278,13 @@ H5D_init_storage(H5D_t *dset, const H5S_t *space)
&(dset->layout), dim, plist)<0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to allocate all chunks of dataset");
} /* end if */
-#endif /*H5_HAVE_PARALLEL*/
break;
} /* end switch */
done:
if (buf)
H5FL_BLK_FREE(type_conv,buf);
+
FUNC_LEAVE(ret_value);
}