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| author | Jordan Henderson <jhenderson@hdfgroup.org> | 2018-07-13 15:20:16 (GMT) |
|---|---|---|
| committer | M. Scot Breitenfeld <brtnfld@hdfgroup.org> | 2018-07-26 22:18:56 (GMT) |
| commit | 3e510f48a2c13d2fed57d0db77947b627bb96e7e (patch) | |
| tree | 7d10b932d2229c3b1fb9304971385d3d60492fe7 /src/H5Dchunk.c | |
| parent | c058e5eb7ee15335351fdfd9ab354cc243f7b9b3 (diff) | |
| download | hdf5-3e510f48a2c13d2fed57d0db77947b627bb96e7e.zip hdf5-3e510f48a2c13d2fed57d0db77947b627bb96e7e.tar.gz hdf5-3e510f48a2c13d2fed57d0db77947b627bb96e7e.tar.bz2 | |
Add note about single chunk caching and serial library
Diffstat (limited to 'src/H5Dchunk.c')
| -rw-r--r-- | src/H5Dchunk.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c index a0976f1..7199171 100644 --- a/src/H5Dchunk.c +++ b/src/H5Dchunk.c @@ -2944,6 +2944,12 @@ H5D__chunk_lookup(const H5D_t *dset, const hsize_t *scaled, * If we were to cache this information, subsequent reads/writes would * retrieve the invalid information and cause a variety of issues. * + * It has been verified that in the serial library, when writing to chunks + * with the real chunk cache disabled and with filters involved, the + * functions within this file are correctly called in such a manner that + * this single chunk cache is always updated correctly. Therefore, this + * check is not needed for the serial library. + * * 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 @@ -2952,7 +2958,7 @@ H5D__chunk_lookup(const H5D_t *dset, const hsize_t *scaled, * each chunk in the write operation, when we're only going to invalidate * the cache at the end of a parallel write anyway. * - * - JTH + * - JTH (7/13/2018) */ #ifdef H5_HAVE_PARALLEL if ( !( (H5F_HAS_FEATURE(idx_info.f, H5FD_FEAT_HAS_MPI)) |