How to use these examples

Submit the job with the command:

sbatch job.fluent.slurm

Input files:

fluent-test.cas fluent-test.jou

Output files:

• fluent-test.cas (its content changes)
• fluent-test.dat

Comments:

• The input file (here fluent-test.jou) contains the appropriate Fluent text commands (TUI).
• The case file (here fluent-test.cas) should have been created through interactive run of Fluent on a PC or on the front-end of the cluster.
• job.fluent.slurm -> 1 node / 16 processors
• job2.fluent.slurm -> 2 nodes / 32 processors

Problems resolutions

Here is a little workaround in case you are experiencing some common errors.

First example - job.fluent.slurm

The result of the job gives an error such as:

/var/spool/slurmd/job4274455/slurm_script: line 29: fluent: command not found

Workaround

• You don't belong to the ansys-users group.

Please ask to be added to this group

• You do belong to this group. In that case, try this command:

newgrp ansys-users

and relaunch this batch script.

Second example - job2.fluent.slurm

You are trying to use the second example, but you have an error such as:

Host key verification failed.

Error: It seems ssh is trying to verify authenticity of [node's hostname]. Please resolve it and try again!

Workaround:

From your home directory, change directory to .ssh

Type the following command:

ssh-keygen -t rsa

You'll get a id_rsa and id_rsa.pub files.

Add the content of the id_rsa.pub into authorized_keys file.

touch authorized_keys

Then, create a config file:

vi config

and add the following:

Host *
  StrictHostKeyChecking no

Author: Jean-Luc Desbiolles (2015-10-27)

Update: Jean-Claude De Giorgi (2020-05-11)