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| author | Axel Huebl <axel.huebl@plasma.ninja> | 2017-11-06 22:03:46 +0100 |
|---|---|---|
| committer | Todd Gamblin <tgamblin@llnl.gov> | 2017-11-06 13:03:46 -0800 |
| commit | 54bb28ccb080c396f7947c6bf294b67f55b8b629 (patch) | |
| tree | 2075ad8e29bf10e01875f35999d79ed2f09871ac | |
| parent | dc78e60c837dc5b02c8e873d336ec9258bef0fca (diff) | |
| download | spack-54bb28ccb080c396f7947c6bf294b67f55b8b629.tar.gz spack-54bb28ccb080c396f7947c6bf294b67f55b8b629.tar.bz2 spack-54bb28ccb080c396f7947c6bf294b67f55b8b629.tar.xz spack-54bb28ccb080c396f7947c6bf294b67f55b8b629.zip | |
Docs: MPI as Root (#6156)
New versions of OpenMPI need `--allow-run-as-root` for
running as root:
http://www.open-mpi.de/doc/v2.0/man1/mpirun.1.php#toc22
| -rw-r--r-- | lib/spack/docs/workflows.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/spack/docs/workflows.rst b/lib/spack/docs/workflows.rst index 7e6b32b866..140c0e5649 100644 --- a/lib/spack/docs/workflows.rst +++ b/lib/spack/docs/workflows.rst @@ -1208,6 +1208,9 @@ MPI Due to the dependency on Fortran for OpenMPI, which is the spack default implementation, consider adding ``gfortran`` to the ``apt-get install`` list. +Recent versions of OpenMPI will require you to pass ``--allow-run-as-root`` +to your ``mpirun`` calls if started as root user inside Docker. + For execution on HPC clusters, it can be helpful to import the docker image into Singularity in order to start a program with an *external* MPI. Otherwise, also add ``openssh-server`` to the ``apt-get install`` list. |