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ANSYS HFSS / ElectroMagnetics software, ansys, ansysEM, em, slurm, hfss, interactive, rsm, batch job 07 September 2022 This document describes how to run ANSYS HFSS (ElectroMagnetics) in the Merlin6 cluster merlin6_sidebar /merlin6/ansys-hfss.html

This document describes the different ways for running ANSYS HFSS (ElectroMagnetics)

ANSYS HFSS (ElectroMagnetics)

This recipe is intended to show how to run ANSYS HFSS (ElectroMagnetics) in Slurm. Having in mind that in general, running ANSYS HFSS means running ANSYS Electronics Desktop.

Running HFSS / Electromagnetics jobs

PModules

Is necessary to run at least ANSYS software ANSYS/2022R1, which is available in PModules:

module use unstable
module load Pmodules/1.1.6
module use overlay_merlin
module load ANSYS/2022R1

Remote job submission: HFSS RSM and SLURM

Running jobs through Remote RSM or Slurm is the recommended way for running ANSYS HFSS.

  • HFSS RSM can be used from ANSYS HFSS installations running on Windows workstations at PSI (as long as are in the internal PSI network).
  • Slurm can be used when submitting directly from a Merlin login node (i.e. sbatch command or interactively from ANSYS Electronics Desktop)

HFSS RSM (from remote workstations)

Running jobs through Remote RSM is the way for running ANSYS HFSS when submitting from an ANSYS HFSS installation on a PSI Windows workstation. A HFSS RSM service is running on each Merlin login node, and the listening port depends on the ANSYS EM version. Current support ANSYS EM RSM release and associated listening ports are the following:

ANSYS version Login nodes Listening port
2022R1 merlin-l-001 merlin-l-001 merlin-l-001 32958
2022R2 merlin-l-001 merlin-l-001 merlin-l-001 32959
2023R2 merlin-l-001 merlin-l-001 merlin-l-001 32960

Notice that by default ANSYS EM is listening on port 32958, this is the default for ANSYS/2022R1 only.

  • Workstations connecting to the Merlin ANSYS EM service must ensure that Electronics Desktop is connecting to the proper port.
  • In the same way, the ANSYS Workstation version must be the same as the version running on Merlin.

Notice that HFSS RSM is not the same RSM provided for other ANSYS products. Therefore, the configuration is different from ANSYS RSM.

To setup HFSS RSM for using it with the Merlin cluster, it must be done from the following ANSYS Electronics Desktop menu:

  1. [Tools]->[Job Management]->[Select Scheduler]. Select_Scheduler
  2. In the new [Select scheduler] window, setup the following settings and Refresh: RSM_Remote_Scheduler

  • Select Scheduler: Remote RSM.

  • Server: Add a Merlin login node.

  • User name: Add your Merlin username.

  • Password: Add you Merlin username password.

    Once refreshed, the Scheduler info box must provide Slurm information of the server (see above picture). If the box contains that information, then you can save changes (OK button).

  1. [Tools]->[Job Management]->[Submit Job...].

Submit_Job

  1. In the new [Submite Job] window, you must specify the location of the ANSYS Electronics Desktop binary. Product_Path
  • In example, for ANSYS/2022R1, the location is /data/software/pmodules/Tools/ANSYS/2021R1/v211/AnsysEM21.1/Linux64/ansysedt.exe:.

HFSS Slurm (from login node only)

Running jobs through Slurm from ANSYS Electronics Desktop is the way for running ANSYS HFSS when submitting from an ANSYS HFSS installation in a Merlin login node. ANSYS Electronics Desktop usually needs to be run from the Merlin NoMachine service, which currently runs on:

  • merlin-l-001.psi.ch
  • merlin-l-002.psi.ch

Since the Slurm client is present in the login node (where ANSYS Electronics Desktop is running), the application will be able to detect and to submit directly to Slurm. Therefore, we only have to configure ANSYS Electronics Desktop to submit to Slurm. This can set as follows:

  1. [Tools]->[Job Management]->[Select Scheduler]. Select_Scheduler
  2. In the new [Select scheduler] window, setup the following settings and Refresh: RSM_Remote_Scheduler

  • Select Scheduler: Slurm.

  • Server: must point to localhost.

  • User name: must be empty.

  • Password: must be empty. The Server, User name and Password boxes can't be modified, but if value do not match with the above settings, they should be changed by selecting another Scheduler which allows editig these boxes (i.e. RSM Remote).

    Once refreshed, the Scheduler info box must provide Slurm information of the server (see above picture). If the box contains that information, then you can save changes (OK button).