Learning Forum

[Abdullah Sinjlawi]

I'm interested in operating ANSYS Workbench on a cluster, as I've been using it on my personal computer. Due to the limitations in performance on my PC, I've decided to switch to a cluster. While I have managed to run Ansys on the cluster, it appears to require initial configuration, a process I'm unfamiliar with, to utiilize the number of cores and RAM available.

Moreover, even though I'm employing the same inputs on the cluster as I did on my PC, I'm encountering significant distortions in certain elements (particularly at the contact interface). This is confusing because the model functioned smoothly on my PC, but now exhibits element distortions on the cluster, despite using identical inputs to replicate the PC results on the cluster.

Thank you.

[Aniket]

Are you using same file to run locally and on cluster? if yes, and seeing different results, try comparing solver output files. 

if you are running the same project on the cluster, and seeing different results, this could be due to ill constrained problem or numerical instability and/or Operational randomness and numerical round-off inherent to parallelism as explained in:

2.2. Troubleshooting (ansys.com)

and 

4.6. Troubleshooting (ansys.com)

Note that differences in results due to Operational randomness and numerical round-off inherent to parallelism should be minimal, so the initial things to check would be:

1. if it is the same problem or not? this includes mesh, geometry, and also unit systems.
2. if it ill-conditioned or not?

-Aniket

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