On 06/24/2013 10:01 AM, Jeff Squyres (jsquyres) wrote:

Put differently: A's FINALIZE is collective with B/first FINALIZE (by definition), but in practice it may need to synchronize with B/second FINALIZE.

Good point. Would requiring MPI to not synchronize when it's not finalizing fix this? -- Pavan Balaji http://www.mcs.anl.gov/~balaji