[Mpi-22] determine if running in a heterogenous environment

[Jeff Squyres]

On Mar 3, 2008, at 12:01 PM, Richard Treumann wrote:

> The real concern here is:
>
> Does the MPI implementation need to provide data conversion services  
> between any pair of tasks in the communiator? If I have some tasks  
> on a slow node and other tasks on a fast one we could debate whether  
> that is heterogeneous.
>
> I think the proposal has merit but we need to be specific that only  
> data representation conversion for data transfer routines is  
> involved in the meaning of "heterogeneous".
>

Narrowing the scope to "whether translation functionality is required"  
is good.  But note that whether the translation functionality is used  
may be specific to a given (communicator,peer,datatype) tuple.


-- 
Jeff Squyres
Cisco Systems