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OpenMPI-3 in docker containers #3

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johnomotani opened this issue Apr 18, 2019 · 0 comments
Open

OpenMPI-3 in docker containers #3

johnomotani opened this issue Apr 18, 2019 · 0 comments

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@johnomotani
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There's an issue using openmpi3 in docker containers. The symptom was lots of warning messages like Read -1, expected <someNumber>, errno =1 when running on more than one processor.

It's discussed and workarounds given here open-mpi/ompi#4948. Short version: pass an argument --cap-add=SYS_PTRACE to the docker run command.
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@johnomotani