openfoam job submission on tacc lonestar 5

 Slurm job script

Slurm’s sbatch command is used for job submission on LS5,i.e.





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sbatch $yourJobScriptFileName






 Serial job

The job script below requests a serial job and 48 hours of run time in the normal queue:





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# SLURM job script to run applications on
# TACC's Lonestar 5 system.
#
# A serial OpenFOAM case


#SBATCH -J yourJobName            # Job name
#SBATCH -o yourJobName_%j.out     # Name of stdout output file (%j expands to jobId)
#SBATCH -e yourJobName_%j.err     # Name of stdout output file (%j expands to jobId)
#SBATCH -p normal                 # Queue name
#SBATCH -N 1                      # Total number of nodes requested
#SBATCH -n 1                      # Total number of mpi tasks requested
#SBATCH -t 48:00:00               # Run time (hh:mm:ss) - 48 hours (maximum)

# Slurm email notifications are now working on Lonestar 5
#SBATCH --mail-user=yourEmailAddress
#SBATCH --mail-type=all

# Launch the executable flow solver based on OpenFOAM
$flowSolverName -case $caseRootDir

# $flowSolverName ==&gt; the OpenFOAM flow solver name
# $caseRootDir    ==&gt; the absolute (full) path of your root case directory
# For example, if you want to run 'interFoam' solver and your case is located in
# '$WORK/aa/bb/cc/yourCase', the command in line 22 should be
# interFoam -case $WORK/aa/bb/cc/yourCase







 Parallel job

The job script below requests a parallel job with 8 threads spread over 1 node and 48 hours of run time in the normal queue:





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# SLURM job script to run applications on
# TACC's Lonestar 5 system.
#
# A parallel OpenFOAM case


#SBATCH -J yourJobName            # Job name
#SBATCH -o yourJobName_%j.out     # Name of stdout output file (%j expands to jobId)
#SBATCH -e yourJobName_%j.err     # Name of stdout output file (%j expands to jobId)
#SBATCH -p normal                 # Queue name
#SBATCH -N 1                      # Total number of nodes requested
#SBATCH -n 8                      # Total number of mpi tasks requested
#SBATCH -t 48:00:00               # Run time (hh:mm:ss) - 48 hours (maximum)

# Slurm email notifications are now working on Lonestar 5
#SBATCH --mail-user=yourEmailAddress
#SBATCH --mail-type=all

# Launch the executable flow solver based on OpenFOAM
# 'mpirun' command is replaced with 'ibrun'
ibrun -np 8 $flowSolverName -parallel -case $caseRootDir

# $flowSolverName ==&gt; the OpenFOAM flow solver name
# $caseRootDir    ==&gt; the absolute (full) path of your root case directory
# For example, if you want to run 'interFoam' solver and your case is located in
# '$WORK/aa/bb/cc/yourCase', the command in line 23 should be
# ibrun -np 8 interFoam -parallel -case $WORK/aa/bb/cc/yourCase






 It should be noted that each LS5 computational node has totally 24 threads, once the total number of mpi tasks -n exceeds 24, one more computational nodes -N should be requested.


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openfoam job submission on tacc lonestar 5

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OpenFOAM case structure
