Greg Lindahl wrote:

Of course, your "latency and bandwidth" benchmark won't see this
problem, because it only uses a single core, and it sends the same
buffer over and over without touching it.

Yup.

We have a storage test using MPI that has each node generate random numbers, and passes the buffer around the nodes for IO. The idea is of course to get a little closer to actual use cases ...

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Joseph Landman, Ph.D
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