[MPIWG Fortran] MPI_SIZEOF: Errata required (was: Another MPI_SIZEOF question)

[Rolf Rabenseifner]

Bill,

Yes, you are right, I oversaw the advice to users; my apologies.

Rolf

----- Original Message -----
> From: "William Gropp" <wgropp at illinois.edu>
> To: "MPI-WG Fortran working group" <mpiwg-fortran at lists.mpi-forum.org>
> Sent: Saturday, June 14, 2014 6:31:39 AM
> Subject: Re: [MPIWG Fortran] MPI_SIZEOF: Errata	required	(was:	Another	MPI_SIZEOF question)
> 
> 
> 
> 
> But the advice to users that follows it specifically describes what
> happens when an array, rather than a scalar, is passed, and this
> advice appears at the time of the original definition, in MPI 2.0.
>  From that, it is clear that the *intent* of the Forum was to permit
> arrays to be passed to MPI_SIZEOF; otherwise, this text would never
> have been written.
> 
> 
> So I'll agree that the interface hasn't changed - it has *always*
> permitted an array as an argument.
> 
> 
> Bill
> 
> 
> 
> 
> 
> 
> William Gropp
> Director, Parallel Computing Institute Thomas M. Siebel Chair in
> Computer Science
> 
> 
> University of Illinois Urbana-Champaign
> 
> 
> 
> 
> 
> 
> 
> On Jun 13, 2014, at 10:32 AM, Rolf Rabenseifner wrote:
> 
> 
> Back to MPI_SIZEOF in mpif.h:
> 
> A few clarifications:
> 
> 1) The interface of Argument x was not changed between  
>   MPI-2.0, 2.1, 2.2 and MPI-3.0:
>   It is always "<type> x" for mpif.h, i.e., without a dimension.
> 
> 
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-- 
Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner at hlrs.de
High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530
University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832
Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner
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