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

["Antonio J. Peña"]

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
>
>
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-- 
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

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