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Can OpenFOAM auto-delete out of date time steps? |
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December 10, 2015, 09:10 |
Can OpenFOAM auto-delete out of date time steps?
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#1 |
Member
Nicole Andrew
Join Date: Sep 2014
Location: Pretoria, South Africa
Posts: 58
Rep Power: 12 |
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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December 10, 2015, 09:59 |
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#2 |
New Member
Join Date: Sep 2013
Posts: 10
Rep Power: 13 |
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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December 10, 2015, 10:06 |
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#3 |
Member
Nicole Andrew
Join Date: Sep 2014
Location: Pretoria, South Africa
Posts: 58
Rep Power: 12 |
You just totally saved my day!! Thanks so much
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November 28, 2018, 20:46 |
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#4 |
Member
Andrew O. Winter
Join Date: Aug 2015
Location: Seattle, WA, USA
Posts: 78
Rep Power: 11 |
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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Tags |
cluster, controldict, memory, time step, write control |
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