Ansys¶

Ansys can be enabled for use within your submission script (or interactively) with the following commands:

flight env activate gridware
module load apps/ansys

Here is an example of a full submission script for Ansys Fluent (provided by Assistant Professor Fabio Malizia):

#!/bin/bash -l
################# Part-1 Slurm directives ####################
# Working dir
##SBATCH -D /users/USERNAME/SimFolder ## Deactivated because the batch file is in the same folder
## Job name
#SBATCH -J JobName
## Environment variables
#SBATCH --export=ALL
## Output and Error Files
#SBATCH -o job-%j.output
#SBATCH -e job-%j.error
## Run time: "hours:minutes:seconds", "days-hours"
#SBATCH --time=144:05:00
## Memory limit (in megabytes). Total --mem or amount per cpu --mem-per-cpu
##SBATCH --mem-per-cpu=1024
#SBATCH --mem=464000
## Processing slots
#SBATCH --nodes=1
#SBATCH --ntasks=64
## Specify partition
#SBATCH -p nodes

################# Part-2 Shell script ####################
#===============================
#  Activate Flight Environment for Ansys Fluent
#-------------------------------
source "${flight_ROOT:-/opt/flight}"/etc/setup.sh
# Load modules
flight start
flight env activate gridware
#Load required Ansys version
module load apps/ansys/2024.2
#module load apps/ansys/2025.2

#===========================
#  Create results directory
#---------------------------
#RESULTS_DIR="$(pwd)/${SLURM_JOB_NAME}-outputs/${SLURM_JOB_ID}"
RESULTS_DIR="$(pwd)/${SLURM_JOB_ID}"
echo "Your results will be stored in: $RESULTS_DIR"
mkdir -p "$RESULTS_DIR"

#===============================
#  Application launch commands
#-------------------------------
# Customize this section to suit your needs.

echo "Executing job commands, current working directory is $(pwd)"

# Command time used to measure the time of the following command
# Add -meshing after 3ddp if you want to start fluent in meshing mode
time fluent 3ddp -t$SLURM_NPROCS -ssh -gu -driver null -i journalFile.jou > $RESULTS_DIR/outputFile.out 2> $RESULTS_DIR/errorFile.err

date  ## echo the date at the end
echo end of job