Opened 7 days ago

Last modified 6 days ago

#2443 new help

u-aw776: problem including tracers in lateral boundary conditions of nesting suite

Reported by: nx902220 Owned by: um_support
Priority: normal Component: UM Model
Keywords: Cc:
Platform: UM Version:


Hi Willie,

I have copied u-at199 revision 74133 which runs all the way through without tracers. I then made the following changes:

To include tracers and feed the UKV tracers into the lateral boundary conditions of the 500 m nest. I get the following error at 500 m forecast:

Warning in umPrintMgr: umPrintExceptionHandler : Handler Invoked[989] exceptions: An exception was raised:11 (Segmentation fault)

I have just tried removing the tracer from the lateral boundary conditions and then tracers are output fine. So the problem must be associated with the lateral boundary conditions.

Please can you help me with this?

Best wishes,


Change History (1)

comment:1 Changed 6 days ago by willie

Hi Lewis,

Try looking through the error logs to see if there are any issues that need correcting. I always

cd ~/cylc-run/<suite-id>/log/job
find . -name job.err -exec ls -l {} \;

This gives a nice list of the error files and their sizes and you can easily look through them.


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