[petsc-users] Would Mac OS version affect PETSc/C/C++ performance?

[Zou, Ling]

Hi all,

After updating Mac OS from Ventura to Sonoma, I am seeing my PETSc code having slightly-larger-than 10% of performance degradation (only in terms of execution time).
I track the number of major function calls, they are identical between the two OS (so PETSc is not the one to blame), but just slower.
Is this something expected, any one also experienced it?

-Ling
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