[mpiwg-rma] Zero byte RMA operations

Balaji, Pavan balaji at anl.gov
Wed Mar 30 10:58:57 CDT 2016

Is it allowed for one to do a zero-byte RMA operation on a window of size 0?  I couldn't find any wording in the standard that disallows this.  If I missed something in the standard, I'd appreciate someone pointing out the page/line number specifying it.

The reason is that checking for this adds an extra branch on some networks, which we are trying to avoid.


  -- Pavan

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