[MPI3 Fortran] Asynchronous MPI calls

Jeff Squyres jsquyres at cisco.com
Thu May 7 06:20:07 CDT 2009

<= MPI 2.1, if you started an async communication, you could not look  
at (read or write) the buffer at all.

Starting with MPI 2.2, you may *read* the buffer of a pending non- 
blocking send.

On May 6, 2009, at 7:00 PM, Craig Rasmussen wrote:

> I seem to remember a discussion regarding what can be done to a buffer
> while an asynchronous operation is pending (before MPI_Wait is
> called).  Can someone refresh my memory.  I think there are to be
> changes to the MPI standard regarding this.
> -craig
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Jeff Squyres
Cisco Systems

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