[MPI3 Fortran] MPI function symbol naming convention for tools

[Bill Long]

Hi Craig,

The "status variable" is the IERROR argument that comes last in the 
argument list, right?  If so, then it would seem easier to declare that 
as optional.  If the interfaces are declared bind(c) in Fortran, then a 
C version of the routine would know how to handle the optional argument. 
  That would allow getting rid of the _nostatus versions.  Given the 
number of MPI routines, cutting the list below by a factor of 2 seems 
like a big win.

Cheers,
Bill


On 6/20/11 12:15 PM, Rasmussen, Craig E wrote:
> I've talked with Jeff Squyres and we come up with naming convention that we'd like to propose for tools to have access to Fortran.
>
> I believe we need four different symbol naming conventions.  Consider MPI_Recv(), the four functions are
>
> 1. mpi_recv_f
>          - This function implements (in C or Fortran) MPI_Recv with integer handles and the choice buffer passed by address.
>
> 2. mpi_recv_f_nostatus
>          - This function implements (in C or Fortran) MPI_Recv with integer handles without a status variable and the choice buffer passed by address.
>
> 3. mpi_recv_f08
>          - This function implements (in C or Fortran) MPI_Recv with integer handles and the choice buffer passed via an array descriptor.
>
> 4. mpi_recv_f_nostatus
>          - This function implements (in C or Fortran) MPI_Recv with integer handles without a status variable and the choice buffer passed via an array descriptor.
>
> Note that these functions only need to support integer handles because of the way we (thanks to Rolf) have chosen to define the handle types in the mpi_f08 module.
>
> Please comment on this naming convention.
>
> -craig
>
>
>
>
>
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-- 
Bill Long                                           longb at cray.com
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