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<div>On 6/20/13 7:39 AM, "Jim Dinan" <<a href="mailto:james.dinan@gmail.com">james.dinan@gmail.com</a>> wrote:</div>
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<div dir="ltr">I agree with the general statement that the nonblocking call marks the end of the epoch. In the case of MPI_Win_test, it's trying to close an exposure epoch -- not an access epoch -- so communication operations from the origin process are not
being completed by synchronization (although, the test/wait synchronization could be waiting for a self communication, that operation is completed by start/complete not post/wait). I think an MPI_Win_iwait operation that uses the semantic you described should
be identical to MPI_Win_test. Unless I'm missing something, which never happens when discussing RMA. :)
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<div>You're right; I always get the exposure / access sides of generalized active target mixed up. With that clarification, I think that MPI_Win_iwait and MPI_Win_test could be made equivalent fairly easily.</div>
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<div>Brian</div>
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<div style="font-family: Tahoma; font-size: 13px; "><font size="2" face="Tahoma">--</font></div>
<div style="font-family: Tahoma; font-size: 13px; "><font size="2" face="tahoma"> Brian W. Barrett</font></div>
<div style="font-family: Tahoma; font-size: 13px; "><font size="2" face="tahoma"> Scalable System Software Group</font></div>
<div style="font-family: Tahoma; font-size: 13px; "><font size="2" face="tahoma"> Sandia National Laboratories</font></div>
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