Error: Unable to WGDOS pack to this accuracy

Unified Model
,
1

Hi,

I got an error saying “Unable to WGDOS pack to this accuracy” for Regn1_resb_1_RAL3PS_um_fcst_000 in my u-do621 UM version 13.7 nesting suite. I ran this suite before, and no such error ever occurred. I had a look at the previous ticket, but didn’t find a workable solution there. Could you please help me?

Best,
Kexin

Screenshot 2025-06-20 131349
Screenshot 2025-06-20 1313491909×932 95.1 KB

2

Kexin

This is usually an indication that the data in the field is corrupt - try running he model without packing the output for the pp0 output stream - that will at least let you see the values of the bad data.

Grenville

3

Thanks, Grenville! So set the packing = 0 in my u-do621/app/glm_um/opt/rose-app-lbc.conf?

4

in

 /home/d00/kqiu/cylc-run/u-do621/app/um/rose-app.conf

[namelist:nlstcall_pp(pp0)]
file_id='pp0'
!!filename='unset'
filename_base='$DATAM/${RUNID}a_pa%N'
l_reinit=.true.
packing=0        <--------------- here    
reinit_end=-1
reinit_start=0
reinit_step=358
reinit_unit=1
reserved_headers=0