[FLASH-USERS] unexpected stop of computation

[Ryan Farber]

Hi Maksim,

This sounds rather bizarre I'll admit. I think I've occasionally had a
similar such problem but it was a long time ago and possibly only during
initialization. I also think it had to do with a certain combination of
MPI + HDF5 versions I used then.

In any case, does this happen at the same time step every time? If so, you
can set the following parameters in your flash.par:
wall_clock_checkpoint
wall_clock_time_limit (to avoid burning computer time)

as well as setting `checkpointFileIntervalStep` to a value to restart just
before the hangup.

Once you're right about at the hangup spot, you can compile in debug mode
and use a parallel debugging tool to investigate (or write lots of print
statements ;)

Best of luck,
--------
Ryan


On Tue, Jun 7, 2022 at 4:20 AM Maksim Kozlov <maksim.kozlov at nu.edu.kz>
wrote:

> Dear Flash users,
> my code works perfectly until some point. It displays executed time steps
> one after another. Then after some time step it does not show a new time
> step. I stopped my code and relaunched it. Same result - it shows the
> same last time step and then nothing happens. Code does not stop working,
> no warning messages appear, but a new time step is never displayed - I
> waited for about 18 hours - nothing. I would really appreciate any
> suggestions on what can cause this problem and what I can do to resolve it.
> Thank you very much!
> Maksim Kozlov
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