-
-
October 31, 2024 at 4:56 amdiett004Subscriber
We are running high-RAM simulations (~1.5 TB) at the Minnesota Supercomputing Institute. The simulations tend to crash repeatedly, usually citing insufficient RAM. However, the same simulations do manage to complete intermittently. When they complete, HFSS consistently records a RAM value hundreds of GB below our actual allocation limit (2 TB). Our question: why would the simulations crash so often due to insufficient RAM when they don't end up requiring more than is available?
The only trend we notice is that higher frequency simulations (which usually require a finer mesh) tend to crash more frequently than lower frequency runs. However, as stated, when higher frequency simulations do successfully complete, they do not require much more RAM than lower frequency ones.
Â
-
October 31, 2024 at 1:18 pmDMARATHEAnsys Employee
Hi,
Thanks for putting up your query on learning forum. It very difficult to comment without looking at profile of simulation run and model complexity and settings.
However, I can suggest you some settings, that may be of some help
In Analysis setup, go for Mixed Order basis function and iterative solver which sometimes uses less RAM that Direct solver.
Thanks,
-
- You must be logged in to reply to this topic.
- Polarization and Angle of Incidence Scan with Floquet ports in ANSYS HFSS
- How to create Lumped RLC in HFSS to match Circuit? (Simulate load as Lumped RLC)
- CPW resonant frequency HFSS Simulation
- EMA3D Current Source Problem
- Setting up CPW HFSS Simulation
- Simplorer link to Maxwell transient
- Help on calculating port impedance Zpv using Field calculator under HFSS please
- Question for Maxwell
- Simulation of capacitor combining eddy currents with displacement currents
-
1091
-
447
-
375
-
225
-
201
© 2024 Copyright ANSYS, Inc. All rights reserved.