Dear all
I am having a problem with a Gromacs run that I have prepared for a total of
1e10 steps (actually
nsteps=10000000000; this accounts in this case for a total run time of 10
microseconds). When I run "grompp" I see in the preprocessing output that
apparently the
correct number of steps has been read. However once the parallel simulation has
started running using the tpr file produced in the log file it reads "nsteps =
1410065408".
It may be that (1) there is a maximum number of steps in gromacs and for longer
simulations one
needs to concatenate different runs, or (2) that the total simulation time is
longer than the longest queue in my cluster. I have tried to rule out the
second option by using the shortest queue in our cluster. Obviously if nsteps
depends on the length of the queue, if run in the shorter queue the maximum
nsteps should be shorter. Also I have assigned the should I have observed that
nsteps is still 1410065408, so it seems that this problem is not dependent on
our queue system. Any ideas?
Thanks for your help
d.
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