CUMF Tool

[s1374103]

Hi

I would like to compare two dumps (same date but different model simulations).

I typed

/projects/um1/IBM/vn8.4/ibm/utils/cumf xnafaa.da19990301_00 xnafba.da19990301_00

Which outputs

Problem with CUMF program
Output
> Summary in:                        /scratch/jakel/cumf_summ.jakel.10085
> Full output in:                    /scratch/jakel/cumf_full.jakel.10085
> Difference maps (if available) in: /scratch/jakel/cumf_diff.jakel.10085

The only file that is generated, /scratch/jakel/cumf_diff.jakel.10085, contains the following..

/projects/um1/IBM/vn8.4/ibm/utils/cumf[250]: 
/projects/um1/vn8.4/ibm/exec/qxcumf: not found [No such file or directory]

I on monsoon and using version 8.4 of the UM/UKCA. Is there a problem with this tool or am I using it incorrectly?

Regards,

Jamie

[willie]

Hi Jamie,

Try using

/projects/um1/vn8.4/cray/utils/cumf

I don't know why you're picking up the old IBM version.

Willie

[s1374103]

Hi Willie,

Thanks for that, the cumf was successful.

Do you know of any documentation on how to interpret the cumf results?

I have ran two simulations that differ only in how many tracers are being tracked (aerosol tracers) so the chemical process and dynamics should be the same.

Regards,

Jamie

[willie]

Hi Jamie,

I tend to use cumf to see if a file contains NaNs by comparing the file with itself. If two files are actually different as in this case, it is less useful. It may be better to use xconv to look at individual fields.

Regards
Willie

[s1374103]

Hi Willie,

Thanks for that.

I have no further questions, you can close the ticket now.

Regards,

Jamie