diff options
| -rw-r--r-- | src/H5Dchunk.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c index d1528eb..f901cdf 100644 --- a/src/H5Dchunk.c +++ b/src/H5Dchunk.c @@ -2943,9 +2943,23 @@ H5D__chunk_lookup(const H5D_t *dset, const hsize_t *scaled, * address in the file and/or gets re-allocated with a different size). * If we were to cache this information, subsequent reads/writes would * retrieve the invalid information and cause a variety of issues. + * + * This is an ugly and potentially frail check, but the + * H5D__chunk_cinfo_cache_reset() function is not currently available + * to functions outside of this file, so outside functions can not + * invalidate this single chunk cache. Even if the function were available, + * this check prevents us from doing the work of going through and caching + * each chunk in the write operation, when we're only going to invalidate + * the cache at the end of a parallel write anyway. + * + * - JTH */ #ifdef H5_HAVE_PARALLEL - if ( !((H5F_INTENT(dset->oloc.file) & H5F_ACC_RDWR) && dset->shared->dcpl_cache.pline.nused) ) + if ( !( (H5F_HAS_FEATURE(idx_info.f, H5FD_FEAT_HAS_MPI)) + && (H5F_INTENT(dset->oloc.file) & H5F_ACC_RDWR) + && dset->shared->dcpl_cache.pline.nused + ) + ) #endif H5D__chunk_cinfo_cache_update(&dset->shared->cache.chunk.last, udata); } /* end if */ |