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| -rw-r--r-- | release_docs/RELEASE.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index fcf94f8..ebdd2e8 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -2158,6 +2158,25 @@ Known Problems * * ************************************************************ + There is a bug in OpenMPI 4.1.0-4.1.4 that can result in incorrect + results from MPI I/O requests unless one of the following parameters + is passed to mpirun: + + --mca io ^ompio + + --mca fbtl_posix_read_data_sieving 0 + + This bug has been fixed in later versions of OpenMPI. + + Further discussion can be found here: + + https://www.hdfgroup.org/2022/11/workarounds-for-openmpi-bug-exposed-by-make-check-in-hdf5-1-13-3/ + + There is a bug in MPICH 4.0.0-4.0.3 where using device=ch4:ofi (the default) + can cause failures in the testphdf5 test program. Using ch4:ucx or ch3 + allows the test to pass. The bug appears to be fixed in the upcoming 4.1 + release. + The accum test fails on MacOS 12.6.2 (Monterey) with clang 14.0.0. The reason for this failure and its impact are unknown. |