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open-mpi
Open MPI main development repository
## Background information While testing a new feature in HDF5, we noticed that OpenMPI sometimes fails in a test that generates random I/O patterns in HDF5. I've tried to create...
Coll/base/coll_base_alltoall.c:ompi_coll_base_alltoall_intra_bruck FIX: switch tmpbuf from sdtype to rdtype representation to avoid illegal use of sdtype on rbuf and wrong behaviour when sdtype and rdtype are different OPTIM: use ompi_datatype_create_indexed instead...
As per the discussion in https://github.com/open-mpi/ompi/pull/10492 (https://github.com/open-mpi/ompi/pull/10492#issuecomment-1189087429) we want to replace the C11 `_Atomic` variables with a custom wrapper around basic atomic types. However, this requires significant changes throughout the...
Hi, I'm trying to specify `--map-by l3`, on v5.0.0rc7, but it's not working. Other mappings, like `core`, `numa`, `socket` work as expected. ``` $ for m in core l3cache numa...
I made this PR in case #10565 is not sufficient: it upgrades the libevent on the v4.1.x branch to libevent 2.1.12. I'm opening this PR to see how well it...
Using OpenMPI 4.1.4, I would expect that the following configuration ``` --enable-wrapper-rpath --disable-wrapper-runpath ``` would imply `-Wl,--disable-new-dtags` when invoking `mpicc`. That is, force RPATH, instead of relying on compiler defaults....
cmake recently gained support to use pkgconfig to detect MPI options (see https://gitlab.kitware.com/cmake/cmake/-/merge_requests/6537/diffs). This is useful e.g. when cross-compiling. Cross-compiling with OpenMPI fails regularly for me because `mpicc` etc. are...
Removes trailing whitespace in one spot to allow IDE's to enable the auto-remove trailing whitespace setting without adding a lot of extra diffs to commits. When you make a 1...
## Background information A security tool we use identified three CVEs (1x Critical, 2x High) in ompi/v4.1.x's copy of libevent. These CVEs are fixed in libevent/master. Here are the CVEs...
We forgot to add MPI_ERR_SESSION error class as part of the Open MPI implementation of sessions.
