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| author | Quincey Koziol <koziol@hdfgroup.org> | 2004-01-31 01:38:44 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2004-01-31 01:38:44 (GMT) |
| commit | 138bc92ebdb7c6e1ad379dcdabae21bf0a79ab0d (patch) | |
| tree | 046bd488f60127ac3a6ba0edbd482b44f022c788 /release_docs | |
| parent | f499912c3247e592a0eeef7207b917428756b094 (diff) | |
| download | hdf5-138bc92ebdb7c6e1ad379dcdabae21bf0a79ab0d.zip hdf5-138bc92ebdb7c6e1ad379dcdabae21bf0a79ab0d.tar.gz hdf5-138bc92ebdb7c6e1ad379dcdabae21bf0a79ab0d.tar.bz2 | |
[svn-r8126] Purpose:
Bug fix/optimization
Description:
Address slowdown in MPI-I/O file metadata operations that was introduced
mid-stream. We now _require_ a POSIX compliant parallel file system for the
MPI-I/O file driver (as well as for the MPI-POSIX file driver).
Also optimized file open operation when the file is being created by
reducing the number of collective & syncronizing calls.
Additionally, refactor the MPI routines into a common place, eliminating
duplicated code.
Platforms tested:
FreeBSD 4.9 (sleipnir) w/parallel
h5committest
Diffstat (limited to 'release_docs')
| -rw-r--r-- | release_docs/RELEASE.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 700acbc..9c19a6d 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -215,6 +215,9 @@ Bug Fixes since HDF5-1.6.0 release Configuration ------------- + - Parallel I/O with the MPI-I/O driver will no longer work if the + filesystem is not POSIX compliant. The "HDF5_MPI_1_METAWRITE" + environment variable has been removed. QAK - 2004/01/30 - Fixed the error that cause "make install" to fail because of the macro definition syntax of "prefix?=..." AKC - 2003/07/22 |