[mpiwg-rma] {MAX,MIN}LOC in RMA

Jed Brown jedbrown at mcs.anl.gov
Thu Mar 13 21:13:36 CDT 2014


Jeff Hammond <jeff.science at gmail.com> writes:

>>> If NIC does FP for complex, this is fine.
>> 
>> Show me a NIC that does.
>
> Prove that one doesn't exist already. 
>
> See also: shared memory. 

Uh, what shared memory system provides atomic complex multiply?

>>> M**Loc isn't a commons HW atomic.

Prove that this doesn't exist.

You'll recall that I've nearly given up on RMA because Ops are not
extensible.  I can't implement anything important using RMA without also
implementing it over non-RMA because my code has to work with types like
float128 and longer pair types.
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