[mpich-discuss] Warning at the End of the Simulation

[Jeff Hammond]

Indeed, see also
http://www.pgroup.com/userforum/viewtopic.php?t=2943&view=next&sid=e7381c436bf99b94740bcb96fa771620,
particularly this suggestion:

'Try adding the flag "-Ktrap=fp".'

Jeff

On Thu, Feb 5, 2015 at 7:59 AM, "Antonio J. Peña" <apenya at mcs.anl.gov> wrote:
>
> Hi Abhishek,
>
> Those problems are likely to come from your code, not from the MPICH
> library. They seem to reveal computation issues like division by zero, so
> your results might not be accurate. There's not much we can help from here,
> though. You may contact the application developer if it's not you or look at
> PGI's documentation to debug the places where these happen (a starting point
> may be here:
> http://www.pgroup.com/userforum/viewtopic.php?t=2928&postdays=0&postorder=asc&start=0).
>
> Best,
>   Antonio
>
>
>
> On 02/05/2015 09:20 AM, Abhishek Bhat wrote:
>
> All,
>
>
>
> I am running MPICH3 with program compiled with PGI Fortran.  At the end of
> (successful) completion of the simulation, I am getting the following
> warnings for each node
>
>
>
> Warning: ieee_invalid is signaling
>
> Warning: ieee_denorm is signaling
>
> Warning: ieee_invalid is signaling
>
> Warning: ieee_denorm is signaling
>
> Warning: ieee_denorm is signaling
>
> Warning: ieee_denorm is signaling
>
> Warning: ieee_denorm is signaling
>
> Warning: ieee_divide_by_zero is signaling
>
> Warning: ieee_divide_by_zero is signaling
>
> Warning: ieee_denorm is signaling
>
> Warning: ieee_divide_by_zero is signaling
>
> Warning: ieee_underflow is signaling
>
> Warning: ieee_inexact is signaling
>
>
>
> Any suggestion if these warnings are harmful or on how to turn them off?
>
>
>
> Thank You
>
> Abhishek
>
> ………………………………………………………………………………………………….
>
> Abhishek Bhat, PhD, EPI,
> Senior Consultant
>
>
> _________________________________________________________________________
>
> The information transmitted is intended only for the person or entity to
> which it is addressed and may contain confidential and/or privileged
> material. Any review, retransmission, dissemination or other use of, or
> taking of any action in reliance upon, this information by persons or
> entities other than the intended recipient is prohibited. If you received
> this in error, please contact the sender and delete the material from any
> computer.
> _________________________________________________________________________
>
>
> _______________________________________________
> discuss mailing list     discuss at mpich.org
> To manage subscription options or unsubscribe:
> https://lists.mpich.org/mailman/listinfo/discuss
>
>
>
> --
> Antonio J. Peña
> Postdoctoral Appointee
> Mathematics and Computer Science Division
> Argonne National Laboratory
> 9700 South Cass Avenue, Bldg. 240, Of. 3148
> Argonne, IL 60439-4847
> apenya at mcs.anl.gov
> www.mcs.anl.gov/~apenya
>
>
> _______________________________________________
> discuss mailing list     discuss at mpich.org
> To manage subscription options or unsubscribe:
> https://lists.mpich.org/mailman/listinfo/discuss



-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
_______________________________________________
discuss mailing list     discuss at mpich.org
To manage subscription options or unsubscribe:
https://lists.mpich.org/mailman/listinfo/discuss