Getting mesh issues

General
1

Dear FEniCSx Community,

I’m solving the heat equation using FEniCSx. While it works fine on small meshes, I encounter memory issues with larger meshes (e.g., 12+ million elements). Interestingly, solving the potential equation on the same large mesh works without issues.

Is it feasible to run time-dependent simulations on such large meshes in FEniCSx? Are there any recommended strategies to optimize memory usage?

Thank you for your help!

Best regards,
Min

2

It is feasible to run time dependent simulations.

The memory issue might be down to how you are using FEniCS, and thus to give you any further guidance you would have to provide a reproducible code.