Switching from Iterative to Direct solver

- March 29, 2022 at 8:10 am
  
  rob_stu
  Subscriber
  
  I am trying to simulate large structure of inductor (Frequency sweep) in ANSYS Electronics Desktop 2020 R2 in HFSS Design using Iterative Solver but I keep getting this message:
  "Matrix solver warning: a single level system, switch from iterative solver to direct solver",
  what results in error message about insufficient RAM space. I assume that using iterative solver should work but i was not able to get around Direct Solver. Is there any solution to disable Direct Solver in this case or anyhow solve this issue?
  
  Thanks in advance.
- March 30, 2022 at 11:49 am
  
  Chinmay T
  Ansys Employee
  
  Please run the simulation with coarse/small mesh settings and check whether your simulation converged or not.
  If the above solution does not work then maybe the memory size on your system is not sufficient to solve the model and you need to increase the memory size.
  Thanks Chinmay

Viewing 1 reply thread

You must be logged in to reply to this topic.

Ansys Innovation Space

Boost Ansys Fluent Simulations with AWS

Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.

Earth Rescue – An Ansys Online Series

The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.

Ansys Blog

Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.

Trending discussions