[MPIWG Fortran] Question about an argument of MPI_Testall

[Jeff Squyres (jsquyres)]

The WG chose not to do this, because Rolf and others indicated that it is not uncommon to have a large status of arrays -- i.e., something >=count statuses.  If you use array_of_statuses(count), then you can only pass in an array of *exactly* size "count" -- and that doesn't fit what users tend to do for convenience.


On Mar 11, 2014, at 12:03 PM, Junchao Zhang <jczhang at mcs.anl.gov> wrote:

> Hello, 
> 
> P60 of MPI3 reads:
> 
> MPI_Testall(count, array_of_requests, flag, array_of_statuses, ierror)
>     INTEGER, INTENT(IN) ::  count
> 
>     TYPE(MPI_Request), INTENT(INOUT) ::  array_of_requests(count)
> 
>     LOGICAL, INTENT(OUT) ::  flag
> 
>     TYPE(MPI_Status) ::  array_of_statuses(*)
> 
>     INTEGER, OPTIONAL, INTENT(OUT) ::  ierror
> 
> Should array_of_statuses be declared as TYPE(MPI_Status) ::  array_of_statuses(count)?
> 
> Thanks
> 
> --Junchao Zhang
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-- 
Jeff Squyres
jsquyres at cisco.com
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