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Up to Specific issues in real coupled models

Posted by Anonymous at June 10 2025

Hello,

I am trying to couple CROCO and WRF through oasis, but the run either freezes, either fails.

The run command is "mpirun -np 4 ./wrfexe : -np 4 ./crocox croco.in"

There is nothing in the output file, even no debug or nout.000 files.
There is only rsl.error.000x files and rsl.out.000x files. And the rsl.error.0000 shows:
taskid: 0 hostname: w-virtual-machine
 module_io_quilt_old.F        2931 F

I did two steps to make sure the WRF and CROCO are ok.
First, if I run "mpirun -np 4 ./wrfexe". I can get the wrfout.
Second, if I undef OA_COUPLING in cppdefs.h of CROCO and run "mpirun -np 4 ./croco croco.in", I can get the output files too.

I really don't know where to find the errors.

Here is the namcouple:
# NFIELDS: total number of fields being exchanged
 $NFIELDS
 10
#########################################################################
# NBMODEL: number of models and their names (6 characters) 
 $NBMODEL
 2  wrfexe  crocox
###########################################################################
# RUNTIME: total simulated time for the actual run in seconds (

Posted by Anonymous at June 10 2025

I don't see a $NLOGPRT entry in the namcouple. 
If there really isn't one, then it's definitely worth adding one 
(probably with a value of 30). 

$NBMODEL is deprecated at OASIS-MCT vn3-ish. Does that imply you're using a very old version of OASIS3-MCT?

Cheers,
Richard H.

Posted by Anonymous at June 11 2025

Hi,

This issue is not related to OASIS-MCT.
It pertains specifically to the CROCO community.
Please post your question on the CROCO forum: https://forum.croco-ocean.org/
You may also find relevant information there.

Best,
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