Dear Users,

I am very new super computing system and has encountered some problems running the RegCM4.4 in the cray machine. The basic tests was run on a interactive mode by allocating some nodes and ran successfully for the default European domain but the same job fails when run by submitting the job. Specifically, the error message was:

SRF variables written at 1990-06-03 09:00:00 UTC

$$$ 1990-06-03 12:00:00 UTC, ktau = 1440

$$$ 1st, 2nd time deriv of ps = 0.61801E-05 0.14347E-07

$$$ no. of points w/convection = 947

SEARCH BC data for 1990060318

READY BC from 1990060312 to 1990060318

ATM variables written at 1990-06-03 12:00:00 UTC

SRF variables written at 1990-06-03 12:00:00 UTC

RAD variables written at 1990-06-03 12:00:00 UTC

WHUUUUBBBASAAAGASDDWD!!!!!!!!!!!!!!!!

No more atmosphere here....

CFL violation detected, so model STOP

#####################################

# DECREASE DT !!!! #

#####################################

The job script is given below:

a. For the interactive mode - by allocating the mode

salloc --ntasks=32 (e.g. only)

aprun -n 32 ./bin/regcmMPI_clm45 regcm.in >regcm.out

b. job script - run as sbatch regcm.sbatch

========================================================

#!/bin/bash -l

#SBATCH --job-name=test_001

#SBATCH --account=director865

#SBATCH --partition=workq

#SBATCH --time=12:00:00

#SBATCH --ntasks=8

#SBATCH --ntasks-per-node=4

#SBATCH --cpus-per-task=1

#SBATCH --export=NONE

module load intel

module load cray-netcdf

./bin/terrain test_001.in >> test_001.out

./bin/clm2rcm test_001.in >test_001.out

./bin/mksurfdata test_001.in >test_001.out

./bin/sst test_001.in >test_001.out

aprun -B ./bin/icbc test_001.in >test_001.out

aprun -B ./bin/regcmMPI_clm45 test_001.in >test_001.out

===========================================================

More information on the supercomputer can be found on: https://portal.ivec.org/docs/Supercomputers/SLURM

I m doing some benchmarking tests on this machine which is pretty much running out of time. So I would like to request your help at the earliest.

Thanking you.

Khandu

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