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RCE Podcast Looks at PMIx Process Management Interface for Exascale

In this RCE Podcast, Brock Palen and Jeff Squyres discuss PMIx with Ralph Castain from Intel. “The Process Management Interface (PMI) has been used for quite some time as a means of exchanging wireup information needed for interprocess communication. While PMI-2 demonstrates better scaling properties than its PMI-1 predecessor, attaining rapid launch and wireup of the roughly 1M processes executing across 100k nodes expected for exascale operations remains challenging.”