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Improve passing of simulation results from mpi_child.py to MPIBackend #192

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blakecaldwell opened this issue Oct 6, 2020 · 0 comments · Fixed by #194
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Improve passing of simulation results from mpi_child.py to MPIBackend #192

blakecaldwell opened this issue Oct 6, 2020 · 0 comments · Fixed by #194
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bug Something isn't working parallelization This doesn't seem right

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Since mpi_child.py is a separate process, the ways to send data back and forth are limited. Right now, data is being packed into stderr, but complications can arise when MPI outputs an error in the middle of data generation that also goes to stderr.

Fix this with a defined protocol for sending both data and error messages between processes. Using file descriptor pipes may not be the best way.

Found from PR #190
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[MRG] use selectors to get output and data from mpi_child.py blakecaldwell/hnn-core
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@blakecaldwell @jasmainak