How to use ANSYS on the HPC

This page provides explains how to run ANSYS on UCI's High Performance Computing Cluster

For questions regarding the HPC, please visit their website

Nabil Khalifa HPC Presentation

A crash course in CFD analysis introducing the finite volume approach and Fluent software as an application. This is the final workshop out of a series of four. A brief introduction for using Fluent on High Performance Computing units is presented, while highlighting how to deal with Fluent through the Text User Interface (TUI).

Here's the presentation slides

NOTE:   START HERE  - This video provides a great primer and explains everything you need to know in order to get started with ANSYS on UCI's HPC

How to run ANSYS on UCI's HPC

Get Started

1)  Request an account 

2)  Review HPC linux tutorials, beginner's guide, and tutorials.

3)      Download and install:

4)  (host name)

5)   Read the Beginners Guide to find out how to connect with your SSH client such as X2GO.

7) Please read through the HPC guide on how to connect via SSH.

8) Read how to use software modules

Using queues with SSH,  X2GO, ANSYS

1)      First type ‘q’ (Private queues specify here ‘queue name’)

2)      qrsh –q ‘queue name’ –pe openmp  ‘# of cores’ (allows you to reserve cores on a queue)

a.       qrsh – q ‘queue name’ –pe mpi  ‘# of cores’ (WARNING: always tries to take all cores no matter #of cores you type. If max cores not typed it will error out)

3)      qstat | grep ‘queue name’ (Find out who is using a queue via username)

4)      module load ansys

5)      fluent  

6)      qstat –u ‘username’ (see job number and etc.)

7)      qdel ‘job number’ (make sure your job is deleted when done so others can access)

8)      exit


Please make sure to:

1.       Check the HPC FAQ and Help Guides

2.      If the issue is not documented, then check out this overview how to report bugs.

3.      Finally email support at

FYI: Be specific in emails!


·         VPN may cause the system to “error” out

·         Currently HPC uses ANSYS® 18’ (will be upgraded soon)


Updated 5/3/2023

Lisa Preble