When running gaincal in CASA 4.0 and higher on a dataset that was previously calibrated using an earlier version of CASA, the following error may be generated:
Caught exception: RecordInterface: field numthreads is unknown
This will cause the gaincal run to fail without producing an output file. This is due to an incompatibility between the "scratch" MODEL_DATA column used by 3.4 and the virtual model stored in the header for 4.0 and up. To fix the problem, delete any model information prior to running setjy:
delmod(vis, scr=True)
Then proceed with calibration, starting at the setjy step.
gaincal failure "Caught exception: RecordInterface: field numthreads is unknown" - Knowledgebase / CASA - NRAO Science Helpdesk
gaincal failure "Caught exception: RecordInterface: field numthreads is unknown"
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- Last updated: Sep 17, 2020 by Miriam Krauss