STORAGE_SIZE returns the size in bits so I'm not sure it is appropriate. I think C_SIZEOF would be better although it only works with interoperable types which I think is OK for MPI-3. But if the object is an array, C_SIZEOF returns the length (in bytes) of the entire array. I'm not sure what value MPI_SIZEOF is supposed to provide. Is it related to C? -craig On May 23, 2011, at 12:16 PM, Jeff Squyres wrote:

On May 23, 2011, at 10:47 AM, Bill Long wrote:

...

Ultimately, I'd be inclined to just scrap the routine as redundant.

This function has been there since 1996 (i.e., MPI-2).

Is it now obsolete? I.e., the Fortran instrinsic STORAGE_SIZE suitable? If so, we can deprecate the old MPI_SIZEOF function and not put it in the new MPI-3 fortran module... but it still has to be implemented in the existing MPI-2 fortran "use mpi" module (even if it's deprecated).

Can you answer Rolf's questions? I'm particularly interested in the fortran wrapper questions.

-- Jeff Squyres [email protected] For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

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