4 Commits

Author	SHA1	Message	Date
jpekkila	d4a84fb887	Added a PCIe bandwidth test	2020-04-09 20:04:54 +03:00
jpekkila	fb41741d74	Improvements to samples	2020-04-07 17:58:47 +03:00
jpekkila	cc9d3f1b9c	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.	2020-04-05 20:15:32 +03:00
jpekkila	88e53dfa21	Added a little program for testing the bandwidths of different MPI comm styles on n nodes and processes	2020-04-05 17:09:57 +03:00