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| author | Quincey Koziol <koziol@hdfgroup.org> | 2004-10-04 20:29:31 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2004-10-04 20:29:31 (GMT) |
| commit | 74a448d084ac1e09be38fdf80c7b7298e3957ea4 (patch) | |
| tree | 0f47590955318bf799c5c6d7cefeecc66fc9bebe /src/H5Distore.c | |
| parent | e2f3ab0ab01044d515eb74b64d24a569d06e3d86 (diff) | |
| download | hdf5-74a448d084ac1e09be38fdf80c7b7298e3957ea4.zip hdf5-74a448d084ac1e09be38fdf80c7b7298e3957ea4.tar.gz hdf5-74a448d084ac1e09be38fdf80c7b7298e3957ea4.tar.bz2 | |
[svn-r9358] Purpose:
Bug fix
Description:
Relax restrictions on parallel I/O to allow compressed, chunked datasets
to be read in parallel (collective access will be degraded to independent
access, but will retrieve the information still).
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel
Solaris 2.7 (arabica)
IRIX64 6.5 (modi4)
h5committest
Diffstat (limited to 'src/H5Distore.c')
| -rw-r--r-- | src/H5Distore.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/src/H5Distore.c b/src/H5Distore.c index e84488f..9fc906d 100644 --- a/src/H5Distore.c +++ b/src/H5Distore.c @@ -1918,17 +1918,11 @@ HDfprintf(stderr,"%s: buf=%p\n",FUNC,buf); * writing to other elements in the same chunk. Do a direct * read-through of only the elements requested. */ - if ((dset->shared->layout.u.chunk.size>dset->shared->cache.chunk.nbytes && dset->shared->dcpl_cache.pline.nused==0 && chunk_addr!=HADDR_UNDEF) - || (IS_H5FD_MPI(dset->ent.file) && (H5F_ACC_RDWR & H5F_get_intent(dset->ent.file)))) { + if (dset->shared->dcpl_cache.pline.nused==0 && ((dset->shared->layout.u.chunk.size>dset->shared->cache.chunk.nbytes && chunk_addr!=HADDR_UNDEF) + || (IS_H5FD_MPI(dset->ent.file) && (H5F_ACC_RDWR & H5F_get_intent(dset->ent.file))))) { H5D_io_info_t chk_io_info; /* Temporary I/O info object */ H5D_storage_t chk_store; /* Chunk storage information */ -#ifdef H5_HAVE_PARALLEL - /* Additional sanity check when operating in parallel */ - if (chunk_addr==HADDR_UNDEF || dset->shared->dcpl_cache.pline.nused>0) - HGOTO_ERROR (H5E_IO, H5E_WRITEERROR, FAIL, "unable to locate raw data chunk"); -#endif /* H5_HAVE_PARALLEL */ - /* Set up the storage information for the chunk */ chk_store.contig.dset_addr=chunk_addr; chk_store.contig.dset_size=(hsize_t)dset->shared->layout.u.chunk.size; @@ -2121,17 +2115,21 @@ HDfprintf(stderr,"%s: mem_offset_arr[%Zu]=%Hu\n",FUNC,*mem_curr_seq,mem_offset_a * writing to other elements in the same chunk. Do a direct * write-through of only the elements requested. */ - if ((dset->shared->layout.u.chunk.size>dset->shared->cache.chunk.nbytes && dset->shared->dcpl_cache.pline.nused==0 && chunk_addr!=HADDR_UNDEF) - || (IS_H5FD_MPI(dset->ent.file) && (H5F_ACC_RDWR & H5F_get_intent(dset->ent.file)))) { - H5D_io_info_t chk_io_info; /* Temporary I/O info object */ - H5D_storage_t chk_store; /* Chunk storage information */ - #ifdef H5_HAVE_PARALLEL - /* Additional sanity check when operating in parallel */ - if (chunk_addr==HADDR_UNDEF || dset->shared->dcpl_cache.pline.nused>0) + /* Additional sanity checks when operating in parallel */ + if(IS_H5FD_MPI(dset->ent.file)) { + if (chunk_addr==HADDR_UNDEF) HGOTO_ERROR (H5E_IO, H5E_WRITEERROR, FAIL, "unable to locate raw data chunk"); + if (dset->shared->dcpl_cache.pline.nused>0) + HGOTO_ERROR (H5E_IO, H5E_WRITEERROR, FAIL, "cannot write to chunked storage with filters in parallel"); + } /* end if */ #endif /* H5_HAVE_PARALLEL */ + if (dset->shared->dcpl_cache.pline.nused==0 && ((dset->shared->layout.u.chunk.size>dset->shared->cache.chunk.nbytes && chunk_addr!=HADDR_UNDEF) + || (IS_H5FD_MPI(dset->ent.file) && (H5F_ACC_RDWR & H5F_get_intent(dset->ent.file))))) { + H5D_io_info_t chk_io_info; /* Temporary I/O info object */ + H5D_storage_t chk_store; /* Chunk storage information */ + /* Set up the storage information for the chunk */ chk_store.contig.dset_addr=chunk_addr; chk_store.contig.dset_size=(hsize_t)dset->shared->layout.u.chunk.size; |