Restarting a GMIN run from a dump file

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Revision as of 13:00, 1 October 2008 by import>Csw34
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GMIN has a facility for restarting a run, as long as you have a GMIN.dump file. This means that if the job runs out of walltime, or you'd like to check if you really have found the global minimum, you can! These dump files are produced by default, every 1000 quenches. This interval can be modified by specification of the DUMPINT keyword - for example, to produce a dump file every 100 quenches:

DUMPINT 100

A shorter dump interval is recommended as system size (and therefore time/quench) increases. To restore a run, you need the RESTORE keyword. Here are two excerpts from example data files to demonstrate:

Original data file:

...
DUMPINT 100
STEPS 10000
SAVE 100
...

data file for restarted run:

...
DUMPINT 100
RESTORE GMIN.dump
STEPS 15000
SAVE 100
...