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Using NC4PAR with diagnostics

asked 2020-12-22 07:00:31 +0100


When using NC4PAR with diagnostics enabled I get a netcdf error in wrt_grid.F, for example:

WRT_GRID - error while writing variable 'spherical' into netCDF file ''.

Everything works fine if NC4PAR is undefined.

It appears to me that all the def_diags*.F files are quite different from the def_his.F, as def_his.F has frequent flags throughout to check if NC4PAR is defined, and if so to define the netcdf file as parallel.

My question then is, am I correct that NC4PAR is not currently functional with diagnostics?

If so, would the solution to this be adding similar logic (as in def_his.F) to the def_diags*.F files?

The speed increase with the parallel writing is quite nice, and it would be great to have it with the diagnostics files as well.

Thanks very much for your help!


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answered 2020-12-22 14:13:39 +0100

Rachid gravatar image

Hi Jacob Yes it's a defect, it still has to be added for the diagnostics. But you're right on the fix, you have to follow the exact similar logic in def_diag as in def_his : define the file as parallel, and define the variables as variables to be written in parallel Rachid

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answered 2020-12-22 15:21:34 +0100

Thanks very much Rachid.

I appreciate the quick response. I am dealing with a new computing environment, and wanted to be sure that it wasn't something about my setup, and was indeed just the current state of the code.

Best regards, Jacob

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Asked: 2020-12-22 07:00:31 +0100

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Last updated: Dec 22 '20