[Mpiwg-large-counts] Large Count - the principles for counts, sizes, and byte and nonbyte displacements

[Jeff Squyres (jsquyres)]

On Oct 24, 2019, at 11:15 AM, Rolf Rabenseifner <rabenseifner at hlrs.de<mailto:rabenseifner at hlrs.de>> wrote:

For me, it looked like that there was some misunderstanding
of the concept that absolute and relative addresses
and number of bytes that can be stored in MPI_Aint.

...with the caveat that MPI_Aint -- as it is right now -- does not support modern segmented memory systems (i.e., where you need more than a small number of bits to indicate the segment where the memory lives).

I think that changes the conversation entirely, right?

--
Jeff Squyres
jsquyres at cisco.com<mailto:jsquyres at cisco.com>

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