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Can OpenFOAM auto-delete out of date time steps?

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Old   December 10, 2015, 09:10
Default Can OpenFOAM auto-delete out of date time steps?
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Nicole Andrew
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Hi foamers,

I am running some OpenFOAM cases on a cluster for the first time and they keep stopping. The log files just end mid-time step so I am trying to guess at the problem...

I think the cluster may be running out of memory. Is there a way to tell an OpenFOAM case to just save the latest time step, or overwrite the previous time step as it writes the new ones? I only need the latest time step, but I do not want to wait to save a step until it has converged, in case it crashes again. I am trying to run 10 different cases simultaneously that take 4-5 days each to converge properly.

I hope someone can help!!
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Old   December 10, 2015, 09:59
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in controlDict, there is an entry called purgeWrite. Set this to 5 for example, and only the latest 5 time steps are being kept. If this is set to zero, the function is turned off and all steps are kept.

Last edited by simon-2; December 10, 2015 at 10:00. Reason: typo
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Old   December 10, 2015, 10:06
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Nicole Andrew
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You just totally saved my day!! Thanks so much
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Old   November 28, 2018, 20:46
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Same here! You've saved me a huge amount of time and worrying about filling up my research group's storage drives.
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