[Nek5000-users] Large simulations

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

Dear All,

Is it normal for a nek simulation (220 000 elements with lx1=12) to have
long initial setup times (basically gs_setup) such as 5 hours when running
on 32768 cores, even when restarting?

As expected, more elements and/or more cores used results in longer setup
times. My problem is that I wish to carry out simulations with a higher
number of elements but I am limited to 24 hour runs and must carry out
restarts.

Is there a way to carry out faster restarts?

Thank you,
jp
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