[mpich-devel] when is MPICH going to be count-safe?
jhammond at alcf.anl.gov
Fri Oct 18 14:28:05 CDT 2013
i am going to generalize my test case to "forall tests involving datatypes: try to send 4+ GB datatype". that seems more useful than the one-off we have now.
----- Original Message -----
> From: "Jim Dinan" <james.dinan at gmail.com>
> To: devel at mpich.org
> Sent: Friday, October 18, 2013 2:25:34 PM
> Subject: Re: [mpich-devel] when is MPICH going to be count-safe?
> (Disclaimer: I haven't looked at the branch in question, so please
> ignore if redundant) It would be good to commit the test case too,
> if you haven't already added it.
> On Tue, Oct 15, 2013 at 4:00 PM, Rob Latham < robl at mcs.anl.gov >
> On Mon, Oct 14, 2013 at 09:54:56PM -0500, Rob Latham wrote:
> > good news is that I think everything "important" is happening
> > correctly. It's just that when the status object is updated it's
> > picking up an overflowed integer. status.count is MPI_Count big, so
> > that's not the source of the overflow. will look once more at my
> > mountain of clang -Wshorten-64-to-32 related warnings in the
> > morning.
> Jeff found the casts to int and I've added his two patches to my
> branch in -review. Jeff and I now pass Jeff's testcase.
> Rob Latham
> Mathematics and Computer Science Division
> Argonne National Lab, IL USA
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381
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