Star-CCM+ Surface Wrapper Batch Cluster

wcj1n18 · August 3, 2021, 10:21

Hi,

Is it possible to set up a surface wrapper in batch? What would be the code for doing this? My current script for the computer cluster is:

#!/bin/bash
#SBATCH --nodes=2
#SBATCH --time=03:00:00
#SBATCH --ntasks=80
#SBATCH --mail-type=ALL
#SBATCH --mail-user=...

module load starccm/15.06
module load openmpi/3.1.4/gcc

NODEFILE="$(pwd)/slurmhosts.$SLURM_JOB_ID.txt"
srun hostname -s &> $NODEFILE

#Mesh Domain
starccm+ -np $SLURM_NTASKS -machinefile $NODEFILE -load Large_Sim_parallel_mesh.sim -batch mesh

This works fine for meshing. Would it be possible to switch this for surface wrapper/ add surface wrapper beforehand such that it does surface wrapper and then meshing? I think perhaps I can use a java macro but cannot see info online/ in the Star-CCM+ manual about the macro for this. I haven't used Java macros yet.

As an additional question, is it possible to record a journal (like you can do in Fluent). This would record everything I do in the GUI which would make running multiple simulations (with minor differences) much easier.

Thanks!

Will

wcj1n18 · August 8, 2021, 09:02

Anyone have any advice about this ?

Thank you

wcj1n18 · August 10, 2021, 07:03

I've worked out how to do this now. For others that may be interested:

You can record all actions on the GUI as you can on Fluent and it records in Java- I couldn't spot this last time but it's near the top of the GUI. I simply did surface wrapper, mesh and save for a smaller case (smaller fluid domain and mesh). This can then be applied to other cases.

The batch script is:

#!/bin/bash
#Script to run a Starccm+ job
#set default resource requirements for job
#SBATCH --nodes=1
#SBATCH --time=00:10:00
#SBATCH --ntasks=4
#SBATCH --mail-type=ALL
#SBATCH --mail-user=...

#use starccm module to set up the environment for starccm+
module load starccm/15.06
module load openmpi/3.1.4/gcc

# Create our hosts file ala slurm
NODEFILE="$(pwd)/slurmhosts.$SLURM_JOB_ID.txt"
srun hostname -s &> $NODEFILE

#Surface Wrapper and Mesh Domain
starccm+ -np $SLURM_NTASKS -machinefile $NODEFILE -load Tetrahedral_Pack_4c.sim -batch Wrapper_Mesh_Save.java > Tetrahedral_Pack_4c_out

And that's it!

Will

August 3, 2021, 10:21	Star-CCM+ Surface Wrapper Batch Cluster	#1
wcj1n18 Member Will Crawford-Jones Join Date: Jan 2021 Posts: 43 Rep Power: 5	Hi, Is it possible to set up a surface wrapper in batch? What would be the code for doing this? My current script for the computer cluster is: #!/bin/bash #SBATCH --nodes=2 #SBATCH --time=03:00:00 #SBATCH --ntasks=80 #SBATCH --mail-type=ALL #SBATCH --mail-user=... module load starccm/15.06 module load openmpi/3.1.4/gcc NODEFILE="$(pwd)/slurmhosts.$SLURM_JOB_ID.txt" srun hostname -s &> $NODEFILE #Mesh Domain starccm+ -np $SLURM_NTASKS -machinefile $NODEFILE -load Large_Sim_parallel_mesh.sim -batch mesh This works fine for meshing. Would it be possible to switch this for surface wrapper/ add surface wrapper beforehand such that it does surface wrapper and then meshing? I think perhaps I can use a java macro but cannot see info online/ in the Star-CCM+ manual about the macro for this. I haven't used Java macros yet. As an additional question, is it possible to record a journal (like you can do in Fluent). This would record everything I do in the GUI which would make running multiple simulations (with minor differences) much easier. Thanks! Will

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August 8, 2021, 09:02		#2
wcj1n18 Member Will Crawford-Jones Join Date: Jan 2021 Posts: 43 Rep Power: 5	Anyone have any advice about this ? Thank you

August 10, 2021, 07:03		#3
wcj1n18 Member Will Crawford-Jones Join Date: Jan 2021 Posts: 43 Rep Power: 5	I've worked out how to do this now. For others that may be interested: You can record all actions on the GUI as you can on Fluent and it records in Java- I couldn't spot this last time but it's near the top of the GUI. I simply did surface wrapper, mesh and save for a smaller case (smaller fluid domain and mesh). This can then be applied to other cases. The batch script is: #!/bin/bash #Script to run a Starccm+ job #set default resource requirements for job #SBATCH --nodes=1 #SBATCH --time=00:10:00 #SBATCH --ntasks=4 #SBATCH --mail-type=ALL #SBATCH --mail-user=... #use starccm module to set up the environment for starccm+ module load starccm/15.06 module load openmpi/3.1.4/gcc # Create our hosts file ala slurm NODEFILE="$(pwd)/slurmhosts.$SLURM_JOB_ID.txt" srun hostname -s &> $NODEFILE #Surface Wrapper and Mesh Domain starccm+ -np $SLURM_NTASKS -machinefile $NODEFILE -load Tetrahedral_Pack_4c.sim -batch Wrapper_Mesh_Save.java > Tetrahedral_Pack_4c_out And that's it! Will