[petsc-users] Configuring PETSc for KNL

Jed Brown jed at jedbrown.org
Tue Apr 4 15:02:07 CDT 2017


Justin Chang <jychang48 at gmail.com> writes:

> Thanks everyone for the helpful advice. So I tried all the suggestions
> including using libsci. The performance did not improve for my particular
> runs, which I think suggests the problem parameters chosen for my tests
> (SNES ex48) are not optimal for KNL. 

Where is -log_view output on the two machines?

Note that ex48 has SSE2 intrinsics, but KNL would like AVX512 (versus
AVX on Haswell).
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