[petsc-dev] OpenMP

Mark Adams mfadams at lbl.gov
Sat Nov 6 05:50:47 CDT 2021

Two questions on OMP:

* Can I test for the version of OMP? I want >= 5 and I see this, which
looks promising:
include/petscsys.h:#elif defined(_OPENMP) && *_OPENMP >= 201307* &&

* What is the difference between HAVE_OPENMP and

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