[Mpi3-rma] Disp_unit in allocate_shared should be returned by win_shared_query?
htor at illinois.edu
Wed Jul 18 13:02:57 CDT 2012
> Is one process' disp_unit meaningful at another process? I thought that
> this is not the case. MPI provides no other routines to query another
> process' disp_unit.
It is something that the user is passing in. I don't know of a
particular use-case but we can query all other arguments that each
process passed. One more integer seemed safe to me.
> Also, what meaning does a disp_unit have in the context of load/store
> operations that will result from win_shared_query?
> Maybe I'm missing something, but this doesn't seem necessary.
Well, it's better to have it than to introduce it with a different name
later. That was my main motivation. One could also use it in a library
context to query. But that's weak, I know.
We can back it out. We can also discuss it at a telecon.
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