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EnergyPlus Output:Diagnostics

From an EnergyPlus .err file it advised adding the following: Output:Diagnostics,DisplayExtraWarnings; So, it was added to the idf, reran simulation, it crashed.... but where do are these additional error details found?

Full error: * Severe * GetSurfaceData: There are 1 degenerate surfaces; Degenerate surfaces are those with number of sides < 3. * ~~~ * These surfaces should be deleted. * ~~~ * For explicit details on each problem surface, use Output:Diagnostics,DisplayExtraWarnings;

dradair's avatar
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dradair
asked 2015-12-16 10:30:44 -0500
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Did you look at this response?

Chandan Sharma's avatar Chandan Sharma (2015-12-16 10:37:31 -0500) edit
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No, I hadn't run across that one, but using some info from that thread and continuing to pound on the issue, I -may- have fixed the error. Long story short is that I am working in CBECCcom with a very large model, runtimes ~4hrs for 'quick sim'. CBECCcom creates an IDF file, which I could then insert the 'Output:Diagnostics' object into...then run it in E+Launch to have it quick spit out the errors - 30seconds vs 4hrs. From this, I then fixed/deleted the [apparent] problems in both the IDF and CBECCcom files. E+ was happy w/ it - now to try in CBECCcom....will have to report back in+-4hrs...

dradair's avatar dradair (2015-12-16 13:07:06 -0500) edit
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BUT - that thread was immensely helpful over all. - thanks Chandan

dradair's avatar dradair (2015-12-16 13:07:51 -0500) edit
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Can someone explain, in simple terms, how to turn on "DisplayExtraWarnings" in OpenStudio?

coastalconcepts's avatar coastalconcepts (2016-04-09 18:41:33 -0500) edit
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The added information will also appear in the .err file. DisplayExtraWarnings might provide a fuller, but bulky, explanation of the context for some types of errors. Sometimes it can add entirely new warnings that aren't always of interest to most users.

That error is often caused when two vertices are very close together, < 1 cm, and one gets dropped out by the program.

Archmage's avatar
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Archmage
answered 2015-12-16 10:42:49 -0500, updated 2015-12-16 14:21:12 -0500
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Thanks for the info. I didn't know if a separate, more detailed file was created, or if it was just added to the err file. it does appear to add info, but its needed information to get rid of the errors/fatals keeping the sim from running. On the thread Chandan linked to above, it dealt with finding degenerate surfaces...just one of a few errors I needed more information on. Thanks for the help

dradair's avatar dradair (2015-12-16 13:48:38 -0500) edit
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