Imbalanced loads on HPC cluster

    • helen.durand


      I have been running a Fluent simulation on a HPC system. When I click on 'check' under the parallel menu in Fluent, I get the these warnings:

      Looking at the other printouts under the parallel menu in Fluent, I see some high latencies and low bandwidths between certain pairs of nodes.

      Is this a problem with the settings in Fluent (such as perhaps in the way in which Metis is partitioning the elements among the processes) or is this a problem related to the HPC system on which I am running the simulation?

      Also, does anyone have any advise on how to address this issue?

      Any help would be appreciated. Thank you!


      Below I have included the active partition printout:



    • DrAmine
      Ansys Employee

      I will rather use smaller number of process having an aim to have 30K for each partition. 

      Please aslo check Latency and Bandwidth.

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