Dear RegCNET

I'm running RegCM-4.4-rc31 over south American domain in test_006 with dust option. I got the following message.

CPUS DIM1 =            2
CPUS DIM2 =            4

Reading model namelist stanzas
-------------- FATAL CALLED ---------------
Fatal in file: mod_params.F90 at line:      573
Runtime increments must be modulus 24 hours
-------------------------------------------
mod_params.F90 :      573:            1
Abort called by computing node            0 at 2014-09-01 00:06:16.729 +0200
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI COMMUNICATOR 3 DUP FROM 0
with errorcode 1.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------

What is that mean?

Thanks

Rahul