I attempted to add checkpoints to monitor each step and identify the source of the problem; however, it appears that almost every step is slower.
Previously, I encountered an issue with installing DOLFINx using Spack:
I followed your advice to uninstall PETSc and reinstall an older version, which resolved the previous issue. However, could this change be contributing to the current performance slowdown? Given that my code extensively utilizes PETSc matrices and vectors, I’m concerned about potential impacts.