On Wed, Jul 18, 2012 at 01:08:43PM -0500, Pavan Balaji wrote:

On 07/18/2012 01:02 PM, Torsten Hoefler wrote:

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Jim,

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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.

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Also, what meaning does a disp_unit have in the context of load/store operations that will result from win_shared_query? Nothing.

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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.

This doesn't seem critical, and can always be added in MPI-3.1 if we find it necessary. No reason to rush it.

It cannot be added without a new function name. That was the concern here. Adding it seems less risk than not adding it. In addition, it is already added ;-). Torsten -- ### qreharg rug ebs fv crryF ------------- http://www.unixer.de/ ----- Torsten Hoefler | Performance Modeling and Simulation Lead Blue Waters Directorate | University of Illinois (UIUC) 1205 W Clark Street | Urbana, IL, 61801 NCSA Building | +01 (217) 244-7736