====== Ansys Workbench ======

This page is for users who want to run the interactive Ansys Workbench application. If you need to run Ansys simulations via large-scale batch jobs, then please consult our __main__ Ansys documentation page, which links to pages for specific products (Fluent, Forte, etc) and gives sample Slurm scripts for each:

   * [[:advanced:software:ansys|Ansys help for Comet]]
===== Ansys Workbench GUI =====

The full ANSYS Workbench GUI can be started from a Linux X11 Desktop session running from [[:advanced:interactive|Open OnDemand]]. This offers both a CPU and GPU-accelerated node choice.

First log in to the Comet Open OnDemand website:

   * https://ood01.comet.hpc.ncl.ac.uk

Next, choose either //Option 1// or //Option 2//, below:

=== Option 1 - Non-GPU Accelerated ===

If you do not require GPU acceleration, and are just using Workbench for typical interactive workloads you can run this from Open OnDemand using the standard **VNC Desktop Session** option:

   * Select a **VNC Desktop Session**
   * Do not request //any// GPU cards
   * Choose the //interactive-std_paid// or //interactive-std_free// partition
   * Select any other session resource parameters required
   * Submit the session request
   * Open a terminal from within the VNC Desktop Session
   * Run ''module load Ansys''
   * Run ''module load VirtualGL''
   * Run ''vglrun runwb2'' - hit enter //twice//
   * The Ansys workbench interface should load

{{:advanced:ansys_workbench_vglrun.png?1000|}}

=== Option 2 - GPU Accelerated ===

If you need one of the Nvidia L40S cards for accelerated rendering or CUDA-assisted processing within Workbench, then you can use one of the GPU nodes instead:

   * Select a **VNC Desktop Session (GPU)**
   * Assign //one// GPU
   * Choose the //interactive-gpu_paid// or //interactive-gpu_free// partition
   * Select any other session resource parameters required
   * Submit the session request
   * Open a terminal from within the VNC Desktop Session (GPU)
   * Run ''module load Ansys''
   * Run ''runwb2''
   * The Ansys workbench interface should load

This allows users who want or need a very powerful workstation interface to Workbench to book out a session on the HPC to do interactive work or pre/post-process projects which will be run distributed across the wider HPC facility.

{{:advanced:ansys_workbench_gpu.png?1000|}}

This interface works exactly as it would running on a local physical Linux workstation and is accessed entirely through your browser from the **Comet** Open OnDemand web portal.

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[[:advanced:software:ansys|Back to main Ansys documentation]]

[[:advanced:software|Back to Software pages]]