jpekkila
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fb41741d74
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Improvements to samples
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2020-04-07 17:58:47 +03:00 |
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jpekkila
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cc9d3f1b9c
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Found a workaround that gives good inter and intra-node performance. HPC-X MPI implementation does not know how to do p2p comm with pinned arrays (should be 80 GiB/s, measured 10 GiB/s) and internode comm is super slow without pinned arrays (should be 40 GiB/s, measured < 1 GiB/s). Made a proof of concept communicator that pins arrays that are send or received from another node.
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2020-04-05 20:15:32 +03:00 |
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jpekkila
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88e53dfa21
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Added a little program for testing the bandwidths of different MPI comm styles on n nodes and processes
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2020-04-05 17:09:57 +03:00 |
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