UCX test programs for more than two nodes

[Hilmarr]

I want to test a transport for three or more nodes. Are there any parameters I can give to am_lat and am_bw to do this?

[yosefe]

ucx_perftest supports only 2 nodes. for multiple nodes can use MPI test, but it would test only tag API

[Hilmarr]

Okay, thanks @yosefe

I've also manually stitched together some benchmarking with different sizes (I'm interested in latency and bandwidth with increasing sizes)

Now I see that I could specify a batch file, which seems to be working mostly as intended. I can run the benchmark for many different sizes in one go that way, but the size still doesn't get printed in the output together with the other results, so I have to manually edit it. Is there an easier way of doing this?

[yosefe]

the name of the test (first word of each line in the batch file) could be chosen to include the size (e.g test_16k)

[Hilmarr]

Okay, that works, thanks