Greetings RegCMers,

I am trying to run RegCM with the 12 bin dust option (DU12). But when I set my domain over the Sahara region I get the following error. When my domain is set in northern latitudes RegCM seems to run fine. Also when I lower the number of the total grid points or when I am using the 4 dust bin option the simulation is completed without any problem. I am including the *.in file and the output of the model+error.

Since the error is occurs in regcmMPI, there must be a problem with parallel processing. I am running my experiments on 24 cores. I already tried the "ulimit -s unlimited" before running mpirun.

Any hint or suggestions is greatly appreciated,
Best wishes,
Thanos

ps: You have to disable the chem BC to test the experiment in the *.in file I am including.

forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
regcmMPI           0000000000A9ACDE  Unknown               Unknown  Unknown
regcmMPI           0000000000A78FA2  Unknown               Unknown  Unknown
regcmMPI           0000000000A3A2BE  Unknown               Unknown  Unknown
regcmMPI           00000000004427CE  Unknown               Unknown  Unknown
regcmMPI           000000000059930D  Unknown               Unknown  Unknown
regcmMPI           000000000040C239  Unknown               Unknown  Unknown
regcmMPI           0000000000617F53  Unknown               Unknown  Unknown
regcmMPI           000000000040B94C  Unknown               Unknown  Unknown
libc.so.6          000000373FA1D9F4  Unknown               Unknown  Unknown
regcmMPI           000000000040B859  Unknown               Unknown  Unknown

========================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   EXIT CODE: 174
=   CLEANING UP REMAINING PROCESSES
=   YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
========================================================

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Fabien Solmon
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