[Nek5000-users] A Restart Issue with NaNs

[nek5000-users at lists.mcs.anl.gov]

Hi Micheal,

How did this computation finish on the prior run?

Is the data corrupted? (i.e., are there nans in the file?)

You might try setting nsteps to zero and then
checking via glmin/glmax or something to see if
the restart file is corrupted.

Paul

On Tue, 30 Nov 2010, nek5000-users at lists.mcs.anl.gov wrote:

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> Hi,
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> I am having an issue with a simulation in which I restart using the restart options in the Rea file. At the very first time step
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> I get NaN's in the Helmholtz VelZ .  I have done several restarts of the same simulation at earlier points to arrive at where I am at
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> now, however I get this upon trying to continue the simulation further. 
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> Any ideas on why this could be, or how to troubleshoot it?  I'm not sure what I could do since this is showing up on the very
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> first time step.
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> Thanks a lot,
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> Michael
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