error in nonblocking.c?

[Jim Edwards]

Okay, that's a good point.  But it should be an integer in fortran
shouldn't it?   Anyway, thanks for the fix.

On Thu, Nov 15, 2012 at 12:51 PM, Wei-keng Liao <wkliao at ece.northwestern.edu
> wrote:

> By the way, MPI_Request is an opaque object in MPICH, not an integer.
> So you probably is printing a pointer address.
> IBM may choose to implement it as an integer. Anyway, the right way to
> use it is to define the requests as MPI_Request type.
>
> Wei-keng
>
> On Nov 15, 2012, at 1:42 PM, Jim Edwards wrote:
>
> > Ah but there is no fortran definition of NC_REQ_NULL, so it's still an
> issue.
> >
> > On Thu, Nov 15, 2012 at 12:37 PM, Jim Edwards <jedwards at ucar.edu> wrote:
> > So this program illustrates the problem:
> >
> > #include <mpi.h>
> > #include <stdio.h>
> > #include <pnetcdf.h>
> >
> > int main()
> > {
> >   printf("%d %d\n",MPI_REQUEST_NULL,NC_REQ_NULL);
> > }
> >
> >
> > On Cray systems using pgi compiler:
> >
> > ./a.out
> > 738197504 -1
> >
> > I can try using NC_REQ_NULL instead of MPI_REQUEST_NULL in my program,
> but I'm afraid that's just going to cause this problem to manifest in a
> different way.
> >
> >
> >
> >
> > On Thu, Nov 15, 2012 at 11:34 AM, Jim Edwards <jedwards at ucar.edu> wrote:
> > On Cray systems the MPI constant MPI_REQUEST_NULL resolves to 738197504
> > but passing this value into nonblocking.c results in an error:
> >
> > Error: no such request ID = 738197504
> >
> >
> > I think that this is an error in parallel-netcdf ncmpii_wait.
> >
> > On the ibm aix system MPI_REQUEST_NULL resolves to -1 and nonblocking.c
> seems to handle it correctly.
> >
> >
> > --
> > Jim Edwards
> >
> > CESM Software Engineering Group
> > National Center for Atmospheric Research
> > Boulder, CO
> > 303-497-1842
> >
> >
> >
> >
> > --
> > Jim Edwards
> >
> > CESM Software Engineering Group
> > National Center for Atmospheric Research
> > Boulder, CO
> > 303-497-1842
> >
> >
> >
> >
> > --
> > Jim Edwards
> >
> > CESM Software Engineering Group
> > National Center for Atmospheric Research
> > Boulder, CO
> > 303-497-1842
> >
>
>


-- 

Jim Edwards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/parallel-netcdf/attachments/20121115/e4b4c40a/attachment-0001.html>