Open MPI Runtime Testing Harness

[jjhursey]

The backend CI will only run if the PR to the ompi-tests-public repo contains changes to any file in the runtime directory.

Once things work well in this repo, I can activate it to watch the main Open MPI repo for changes to the submodules related to the runtime.

[jjhursey]

Look for the IBM CI (ppc64le, GNU, Runtime) status.

[jjhursey]

bot:ibm:retest

[jjhursey]

I saw this once in testing. The debug build of Open MPI will sometimes hang when terminating.

• https://gist.github.com/ibm-ompi/66414610bc6f4b2a22bcff538b5dbec0

It's pretty hard to hit, but happens every now and then.

[jjhursey]

I just pushed the runtime/bin/pretty-print-hwloc tool which displays the hwloc binding information in a pretty print format. It uses some old code from OPAL to do so. See the README.md for details. It might be useful when creating tests.

[jjhursey]

@naughtont3 This is ready for review. Once merged then you can post a PR with changes to the runtime directory and bounce it off of the CI system.

[naughtont3]

@naughtont3 This is ready for review. Once merged then you can post a PR with changes to the runtime directory and bounce it off of the CI system.

So this looks good from brief read of changeset. I will try to give it a test to kick tires and let you know if I see anything at that point.

[jjhursey]

@naughtont3 What do you think about merging this PR, then trying it out off of a PR after it is merged. I can always push changes to either the front or backend if you find any issues.

[naughtont3]

Yep, I'd say merge and we can update there as needed.