Fixes for MPI message graph #173
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Shillaker
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Nov 9, 2021
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In this PR I fix two bugs I encountered while testing the MPI message graph.
First, the way we cached the message that initialised a rank meant that only messages creating a new world (or initialising it in a different host) would get the updated details. Note that the other ranks would inherit a message with the right flags, but would never update it locally. I add a regression test to check that non-master ranks also populate the message details.
Second, I was eventually running into a RapidJSON memory corruption when requesting the result from
redis. There was a problem with the scope of the variables used, which I also fix.