[petsc-dev] error with flags PETSc uses for determining AVX

[Jed Brown]

Barry Smith <bsmith at petsc.dev> writes:

>    My feeling is 90+% of users don't care about portability, they want to get fast performance on the machine they are compiling with (or a collection of machines they have around).  

This is an exclusionary view of users. PETSc could and would be used in more places if it was easy to install, e.g., if "pip install petsc" was a 3-second binary install instead of several minutes that requires compilers.