genie_python Troubleshooting

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Logging

Where are the logs?

Genie_python writes its logs to ...\Instrument\var\logs\genie_python.

What does ERROR: CAException mean when it is in the log?

The following is written to the log when a virtual circuit disconnects from the IOC side:

    2018-05-21T15:21:31	(CA)	(15712)	ERROR: CAException: type=-1 state=192 op=5 file=..\cac.cpp lineNo=1223
    2018-05-21T15:21:31	(CA)	(15712)	ERROR: CAException: type=6 state=192 op=0 file=..\getCopy.cpp lineNo=92

The time stamp on these are for the first get_pv call or equivalent after a disconnect.

Problems importing a dependency that should be in genie_python

Have you pulled and rebuilt the latest version of the repository under \Apps\Python ?

Genie_python rashes on start, Underlying python works but fails on import numpy

If genie_python crashes on start with a windows error but the underlying Python appears to start ok try importing numpy. We have a problem with the latest CPUs (skylakex) running under the hypervisor which means that the OPENBLAS library has an unknown instruction in it. The current fix is to set the environment variable so it appears it is running a different core type. Do this with:

OPENBLAS_CORETYPE=Haswell

This is set within the system environment on the PC; currently, this fix is only needed on RIKENFE and MUONFE.

Can't find Python 3

If you get an error message similar to

*** Cannot find GENIE-PYTHON 3 - some things are not likely to work ***

on running config_env.bat, you need to ensure you have both python 2 and python 3 available on your system.