[mvapich-discuss] Creating an intra-communicator

[Akshay Venkatesh]

David,

The following will helps:
- How many processes are being run on each node ?
- At which point in the MPI program are you creating the communicator?
- What does the second entity (c4000000/84000004) in the output correspond
to?
- A reproducer would be necessary


On Mon, Aug 25, 2014 at 11:45 PM, David Winslow <
david.winslow at serendipitynow.com> wrote:

>
> We have 18 processes in the cluster and we make a single call to create an
> intra-communicator for a thread. Should we expect to see two different ids
> for them? See below output from the print.
>
> rank 0, c4000000, for component id 1, group id 88000000
> rank 1, 84000004, for component id 1, group id 88000000
> rank 2, c4000000, for component id 1, group id 88000000
> rank 3, 84000004, for component id 1, group id 88000000
> rank 4, c4000000, for component id 1, group id 88000000
> rank 5, 84000004, for component id 1, group id 88000000
> rank 6, c4000000, for component id 1, group id 88000000
> rank 7, 84000004, for component id 1, group id 88000000
> rank 8, c4000000, for component id 1, group id 88000000
> rank 9, 84000004, for component id 1, group id 88000000
> rank 10, c4000000, for component id 1, group id 88000000
> rank 11, 84000004, for component id 1, group id 88000000
> rank 12, c4000000, for component id 1, group id 88000000
> rank 13, 84000004, for component id 1, group id 88000000
>  rank 14, c4000000, for component id 1, group id 88000000
> rank 15, 84000004, for component id 1, group id 88000000
> rank 16, c4000000, for component id 1, group id 88000000
> rank 17, 84000004, for component id 1, group id 88000000
>
>
> Thanks
> David
>
>
>
>
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-- 
-Akshay
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