From 3e510f48a2c13d2fed57d0db77947b627bb96e7e Mon Sep 17 00:00:00 2001 From: Jordan Henderson Date: Fri, 13 Jul 2018 10:20:16 -0500 Subject: Add note about single chunk caching and serial library --- src/H5Dchunk.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) 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)) -- cgit v0.12