[Mpi-forum] MPI_Type_create_struct vs. other datatype creation routines

[Jeff Squyres]

An offhand guess: TYPE_CREATE_STRUCT was created in MPI-2, whereas the rest were created in MPI-1.


On Aug 27, 2011, at 3:54 AM, Pavan Balaji wrote:

> 
> Is there a reason why MPI_Type_create_struct was given the special privilege of using MPI_Aint to store displacements, while the remaining datatype creation routines use int? This would essentially disallow creation of a datatype as an offset to MPI_BOTTOM.
> 
> -- Pavan
> 
> -- 
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
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-- 
Jeff Squyres
jsquyres at cisco.com
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