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Meshing-related COMSOL software crashing

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I was running a simulation for a diffusion controlled 1D model consisted of anode and cathode and encountered a crashing issue: the COMSOL software just shut down without any notice after starting the transient state study.

I noticed that the crashing happens after an initial value at t=0s is obtained and the software is about to generate convergence plot.

I also tried running simulation on each side seperately. I found that the crashing will occur when the mesh unit number excels certain value: when unit number is 1100, crashing happens; when unit number is 1000, model can converge with a reasonable result.

However, when I combine both anode and cathode, crashing will happen no matter how small the mesh unit number is, even for 10 units.

I also tried switching rendering from openGL to software or DirectX. But none of them helps.

Ps. My computer has a AMD5900 CPU with 32g memory.

Does anyone experience such case before? Any suggestion is welcome.

Cliff


1 Reply Last Post 12.07.2023, 12:47 GMT-4
Robert Koslover Certified Consultant

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Posted: 1 year ago 12.07.2023, 12:47 GMT-4
  1. This sounds like a good problem for official Comsol support. If you have an active support license, I encourage you to submit a support case via https://www.comsol.com/support .
  2. If not, then at least consider uploading your .mph file(s) to the forum, so that others reading here may have a better chance to figure out what is going wrong.
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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
1. This sounds like a good problem for official Comsol support. If you have an active support license, I encourage you to submit a support case via https://www.comsol.com/support . 2. If not, then at least consider uploading your .mph file(s) to the forum, so that others reading here may have a better chance to figure out what is going wrong.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.