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MangeshANSYS
Ansys Employee

Hello,

Yes ideally the pre / post processing should happen on machines with workstation class graphics cards with newer graphics driver versions.

how are you accessing X on the cluster? interactively or through some remote display / X forwarding ? 
woes it work if you do not set the LIBGL variables and only set th eLD LIBRARY  PATH and start workbench with oglmesa flag