[IPython-dev] MPI on Windows HPC
Wed Sep 25 10:51:46 CDT 2013
> My understanding is that I really want these to be recognised as part of
> same group - is this possible?
This is an MPI question, not an IPython question.
That said, the answer depends on your MPI implementation. MPI_COMM_WORLD
(which is the communicator you're using here), is populated at process
launch. There are ways to form groups of processes after process launch,
see intracommunicators in the MPI-2 documentation, but you should
understand that this is not a very commonly used technique in the HPC
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