ANSYS Fluent
ANSYS Fluent is the industry-leading fluid simulation software known for its advanced physics modeling capabilities and industry leading accuracy
Using ANSYS Fluent interactive
(Graphical User Interface)
Use your browser to connect to Umbrella On Demand
Using ANSYS Fluent in SLURM batch jobs
(Command Line Interface)
Test ANSYS Fluent
Load the module(s)
[user@umbrella]$ module purge
[user@umbrella]$ module load foss/2023a # or intel/2023a for -mpi=intel)
[user@umbrella]$ module load ANSYS/2024R1
Check ANSYS Fluent:
[user@umbrella]$ fluent 3ddp -g -t2 -mpitest -mpi=openmpi
FLUENT MPI test started ...
Ping pong latency test ...
ping..pong..latency(usec)...count..host
-------------------------------------------------------------
0.....1.....0.607091........10000..0:tue-login002.icts.tue.nl
1.....0.....0.602129........10000..1:tue-login002.icts.tue.nl
Ping pong bandwidth test ...
ping..pong..bandwidth(MB)...count.msg-size(MB)..host
-------------------------------------------------------------
0.....1.....3777.73.........10....4.............0:tue-login002.icts.tue.nl
1.....0.....3769.36.........10....4.............1:tue-login002.icts.tue.nl
Global reduction test ...
MPI-function...time-per-msg(usec)..count...total-time(sec)..
-------------------------------------------------------------
Bcast..........0.248226............5000....0.00124113.......
Reduce.........0.263078............5000....0.00131539.......
Barier.........0.616867............5000....0.00308433.......
FLUENT MPI test done.
ANSYS Fluent SLURM sbatch jobscript example using OpenMPI on 1 Node.
#!/bin/bash
#
#SBATCH --job-name=test_ansys
#SBATCH --error=test_ansys-%j.log
#SBATCH --partition=tue.default.q
#SBATCH --nodes=1
#SBATCH --ntasks-per-node=8
#SBATCH --cpus-per-task=1
#SBATCH --mem-per-cpu=2gb
#SBATCH --time=00:05:00
module purge
module load foss/2023a
module load ANSYS/2024R1
fluent 3ddp -g -t${SLURM_NTASKS} -mpitest -mpi=openmpi
ANSYS Fluent SLURM sbatch jobscript example using OpenMPI on 2 Nodes.
#!/bin/bash
#
#SBATCH --job-name=test_ansys
#SBATCH --error=test_ansys-%j.log
#SBATCH --partition=tue.default.q
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=8
#SBATCH --cpus-per-task=1
#SBATCH --mem-per-cpu=2gb
#SBATCH --time=00:05:00
module purge
module load foss/2023a
module load ANSYS/2024R1
JOB_NODES="$(scontrol show hostnames)"
JOB_NODES=$(echo ${JOB_NODES} | tr ' ' ',')
fluent 3ddp -g -cnf=${JOB_NODES} -t${SLURM_NTASKS} -mpitest -mpi=openmpi