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open-mpi
Open MPI main development repository
This PR fixes a hang in osc/ucx observed during MPI_Finalize with Graph500 by ensuring no outstanding operations remain on default endpoints before they are destroyed.
Due a bug in the way we sanitize user inputs on the 'requested' parameter in `MPI_Init_thread` the `requested` parameter cannot be overridden by `OMPI_MPI_THREAD_LEVEL` environment variable. This feature is important...
## Background information Hi all - we're seeing unexpected rank placement when not launching from the first host in our hostfile. Orte seems to prioritize the launch node when assigning...
It is possible that the current memory domain does not have an adequate transport for forming endpoint to endpoint connections. When this is the case the btl will fail to...
I'm running tests on RHEL9, trying to install openmpi-5.0.7 from source with nvhpc-25.3. I downloaded the tarball from the [releases page](https://www.open-mpi.org/software/ompi/v5.0/). However, I'm running into the following in the "make"...
## Background information ### What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.) v4.1.4 ### Describe how Open MPI was installed (e.g.,...
Thank you for taking the time to submit an issue! ## Background information ### What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash,...
We are running an application on a single node using CUDA 12.8. We are using openMPI 5.0.7 with UCS 1.8.0 and gdrcopy 1.5.0 and nv_peer_mem v 1.3. We are getting...
Thank you for taking the time to submit an issue! ## Background information ### What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash,...
## Background information ### What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.) v5.0.7 ### Describe how Open MPI was installed (e.g.,...
