Was there a recently force-update of HFSS that slows the software down?

- May 22, 2024 at 3:18 pm
  
  Brendan Sheehan
  Subscriber
  
  I am a researcher using Ansys Electronics Desktop (formerly HFSS) version 2023 R2 to perform simulations on a resonant structure. In the past 10 days, very suddenly, the software's performance has degraded rapidly. Now I can no longer get it to do much of anything without freezing and going into 'not responding.'
  
  What I am trying to do now is the following: I have solved my resonant structure in HFSS/modal solution type using the 'Fast' method, and saved fields. Now, I have a calculator expression I have defined and would like to now calculate this quantity at every frequency in my frequency sweep.
  
  It seems like it should be a trivial calculation, except that I keep getting this error: "Fast sweep field configuration. process hf3d error: Failure in assembling matrix. Please contact Ansys technical support"
  
  The computers we use have more than enough RAM and hard drive space to run the software. Additionally, I am watching the memory usage using the Task Manager, and it never approaches 100% – there should be sufficient memory to do these calculations. So my question is, what is going on? Why is the software no longer working?
- May 22, 2024 at 3:28 pm
  
  Brendan Sheehan
  Subscriber
  
  The note from "Echo Wise" is spam. I'm hoping for an actual response – in particular because the Ansys Customer Support is unwilling to help.