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FCA barrier may not complete if FCA progress is not called periodically.
PMI/PMI2 API that can be used in rte barrier has no provision for calling
external progress function.

So it is possible that during finalize some ranks will be stuck
in fca barrier while others are in PMI barrier.
@mike-dubman
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will add PR for v2.x shortly

mike-dubman added a commit that referenced this pull request Oct 5, 2015
…_mlnx_platform

Add in-finalize indicator, fca fall back to prev barrier if in-finalize
@mike-dubman mike-dubman merged commit 260905b into open-mpi:master Oct 5, 2015
@mike-dubman mike-dubman deleted the topic/master_patches_from_mlnx_platform branch October 5, 2015 17:40
jsquyres pushed a commit to jsquyres/ompi that referenced this pull request Aug 23, 2016
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