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

[Junchao Zhang]

Do you have -log_view report so that we can know which petsc functions
degraded?  Or is it because compilers were different?

--Junchao Zhang


On Sun, Aug 18, 2024 at 6:04 PM Zou, Ling via petsc-users <
petsc-users at mcs.anl.gov> wrote:

> 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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