INANCILA: Insufficient space for LOOKUP headers

Unified Model
1

Dear CMS,

I’ve been trying to set up a UM-UKCA vn13.7 nudged suite based on u-dl478. The suite is u-do480. It seemed to be running fine before I deleted everything in
/home/d03/myosh/roses/u-do480/app/um/opt/rose-app-monsoon.conf
following an error. I also changed the temporary output path to
/scratch/d03/myosh/cylc-run/u-do480/share/History_Data
instead of /project/ukca_leeds disk space, which is what I have been doing on my recent suites.

Now atmos_main crashes for this error;
? Error from routine: INITIAL_4A
? Error message: INANCILA: Insufficient space for LOOKUP headers

I thought I had had a similar error but it doesn’t seem to be the same one. Please could you help me?

Thanks,
Masaru

2

Hi Masaru,

This error is due to addition of an UM ancillary file with a long timeseries, especially a 3-D source. The pe_output file might contain name of the ancillary file it is trying to read.
The LOOKUP headers are counted as number of lat x long slices in the file and the maximum expected headers can be set in app/um/rose-app.conf:
[namelist:ancilcta]
nancil_lookupsa=

As mentioned, try to calculate this value for the ancillary with longest timeseries e.g. for 3-D file =nlevels x time records; for a 2-D file no. of time records.

Best wishes