Ansys Not using available resources (RAM, CPU, GPU)

- September 6, 2019 at 4:12 pm
  
  dean.darnell
  Subscriber
  
  Hello All
  
  I am running the most recent Ansys workbench and HFSS on 64 bit windows 10. I have 8 2.4 GHz cores, 16 processors,128 GB RAM, a 500 GB SSD HD, and a Radon RX580 8GB graphics card installed on the machine. When I run a stress test on the computer it uses most of the resources available to it. However, when running ANSYS it never uses more than ~20% CPU, 2-3GB RAM, and 3% GPU according to Task Manager. It would seem that I have something configured incorrectly, any ideas?
- September 6, 2019 at 10:01 pm
  
  tsiriaks
  Ansys Employee
  
  Hi dean.darnell@duke.edu,
  
  I can only recommend to turn off hyperthreading, the rest would be best to ask in Physics Simulation -> Electromagnetics section. I would recommend to include your analysis settings in HPC and Analysis options as well as the details of your project (analysis type, size, etc.) in your new thread.
  
  Thanks,
  
  Win
- September 9, 2019 at 10:01 am
  
  Rob
  Forum Moderator
  
  Another thing to consider: ANSYS tools (typically) will use resource as needed. Not sure why it's not using more cpu (check parallel assignment) but depending on model size I wouldn't expect to max out RAM.