[Mpi3-hybridpm] MPI_Comm_split_type

Supalov, Alexander alexander.supalov at intel.com
Fri Aug 26 02:12:59 CDT 2011

Thanks. The advice to implementers mentioned an Info argument (see 23/6). There appears to be no MPI_Info argument in the syntax (see 22/26). Is this a remnant of the ol'times, or a glint of the future?

Actually, having an MPI_Info here would be very tempting, as one could, e.g., ask the new communicator ranks to be reordered to honour cache hierarchy, or latency, etc. With the time we could then also agree on some keys/effects common to all implementations.

-----Original Message-----
From: mpi3-hybridpm-bounces at lists.mpi-forum.org [mailto:mpi3-hybridpm-bounces at lists.mpi-forum.org] On Behalf Of Pavan Balaji
Sent: Friday, August 26, 2011 2:09 AM
To: mpi3-hybridpm at lists.mpi-forum.org
Subject: Re: [Mpi3-hybridpm] MPI_Comm_split_type


Ron and I made some corrections to the MPI_Comm_split_type definition. 
Attached is a new version of the chapter with these changes.

Comments before the next telecon are welcome, so we can minimize the time we spend on this during the telecon.


  -- Pavan

On 08/23/2011 08:23 PM, Pavan Balaji wrote:
> Attached is the updated context chapter with the new 
> MPI_Comm_split_type function (marked in red). Please look through it 
> to make sure we didn't miss anything. For the official reading, we'll 
> drop the MPI_COMM_TYPE_PROCESS constant; the endpoints proposal will add it back.
>    -- Pavan

Pavan Balaji
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