# ANSYS

This document describes generic information of how to load and run ANSYS software in the Merlin cluster

## ANSYS software in Pmodules

The ANSYS software can be loaded through **[PModules](pmodules.md)**.

The default ANSYS versions are loaded from the central PModules repository.

However, we provide local installations on Merlin7 which are needed mainly for some ANSYS packages, like Ansys RSM.
Due to this, and also to improve the interactive experience of the user, ANSYS has been also installed in the
Merlin high performance storage and we have made it available from Pmodules.

### Loading Merlin7 ANSYS

```bash
module purge
module use unstable # Optional
module search ANSYS

# Load the proper ANSYS version, in example for 2025R2
module load ANSYS/2025R2
```

<details>
<summary>[Example] Loading ANSYS from the Merlin7 PModules repository</summary>
<pre class="terminal code highlight js-syntax-highlight plaintext" lang="plaintext" markdown="false">
🔥 [caubet_m@login001:~]# module purge
🔥 [caubet_m@login001:~]# module use unstable
🔥 [caubet_m@login001:~]# module use deprecated

🔥 [caubet_m@login001:~]# module search ANSYS
(Re-)building the Pmodules cache. Please be patient ...
Done ...

Module       Rel.stage  Group        Overlay      Requires
--------------------------------------------------------------------------------
ANSYS/2022R2 deprecated Tools        merlin
ANSYS/2023R2 deprecated Tools        merlin
ANSYS/2024R2 stable     Tools        merlin
ANSYS/2025R2 stable     Tools        merlin
</pre>
</details>

!!! tip
    Older ANSYS releases, **2022R2** and **2023R2** are `deprecated`.
    Please always run **ANSYS/2024R2 or superior**.

## ANSYS Documentation by product

### ANSYS RSM

**ANSYS Remote Solve Manager (RSM)** is used by ANSYS Workbench to submit computational jobs to HPC clusters directly from Workbench on your desktop.
Therefore, PSI workstations with direct access to Merlin can submit jobs by using RSM.

For further information, please visit the **[ANSYS RSM](ansys-rsm.md)** section.

### ANSYS Fluent

ANSYS Fluent is not currently documented for Merlin7. Please refer to the [Merlin6 documentation](../../merlin6/software-support/ansys-fluent.md) for information about ANSYS Fluent on Merlin6.

### ANSYS CFX

ANSYS CFX is not currently documented for Merlin7. Please refer to the [Merlin6 documentation](../../merlin6/software-support/ansys-cfx.md) for information about ANSYS CFX on Merlin6.

### ANSYS MAPDL

ANSYS MAPDL is not currently documented for Merlin7. Please refer to the [Merlin6 documentation](../../merlin6/software-support/ansys-mapdl.md) for information about ANSYS MAPDL on Merlin6.