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| author | Albert Cheng <acheng@hdfgroup.org> | 1998-02-10 05:15:42 (GMT) |
|---|---|---|
| committer | Albert Cheng <acheng@hdfgroup.org> | 1998-02-10 05:15:42 (GMT) |
| commit | 2d17eb91656fcd5ff19de1859a51a3d2d8783c7f (patch) | |
| tree | 8be27aed1cedfa83b6f6da494a2b8a029f06b378 /src/H5M.c | |
| parent | 4c2346ff5dff516e4f512d1d06e9670a4ab3964a (diff) | |
| download | hdf5-2d17eb91656fcd5ff19de1859a51a3d2d8783c7f.zip hdf5-2d17eb91656fcd5ff19de1859a51a3d2d8783c7f.tar.gz hdf5-2d17eb91656fcd5ff19de1859a51a3d2d8783c7f.tar.bz2 | |
[svn-r232] Problem: Parallel H5Fcreate failed if file doesnot exist. When the
file does not exist, the code tried to open the file with EXCL CREATE.
ROMIO cannot handle file-open with EXCL Create due to racing problem.
The first process creates the file which then fails all
other processes.
Solution: In the parallel code, turn on TRUNC mode to allow "late" open
calls to succeed too. It is safe to force TRUNC mode since the file is
known non-existing at that point. The MPIO implementation has to
provide the real solution.
Platform tested: O2K with ROMIO.
Diffstat (limited to 'src/H5M.c')
0 files changed, 0 insertions, 0 deletions