[mpich-devel] [PATCH] ofi: need to specify ordering for FI_EP_RDM

Jeff Squyres (jsquyres) jsquyres at cisco.com
Fri Sep 4 12:27:14 CDT 2015

On Sep 4, 2015, at 12:27 PM, Rob Latham <robl at mcs.anl.gov> wrote:
> We have a formal workflow for frequent contributors that involves sign-offs and such.  For occasional contributions, sending a patch to devel at mpich (as you did) works great.
> Ken's going to review this.


This patch is important to us because Cisco's usNIC libfabric support is actual UDP under the covers, hence, if you want ordering (and you really do when you use the tag-matching interface; it doesn't make sense, otherwise), then you need to ask for it.

Other libfabric interfaces that provide the tag-matching support (e.g., PSM) are inherently ordered already, so even if you didn't ask for it, you got it, and it all worked out ok.

Jeff Squyres
jsquyres at cisco.com
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