Well at runtime you are going to need to tell OpenMP how many threads to use per process which presumably is done via an OpenMP environmental variable. Barry

On Jul 28, 2016, at 7:54 PM, Mark Adams <[email protected]> wrote:

Cool, so just --with-openmp and we are off. I was hoping (and sort of claimed) it would easy, Thanks,

On Thu, Jul 28, 2016 at 3:08 PM, Satish Balay <[email protected]> wrote: https://bitbucket.org/petsc/petsc/commits/e872ca4eda51751516e9741c8758494774...

satish

On Thu, 28 Jul 2016, Mark Adams wrote:

...

I have a project (XGC) that has heard that hypre supports threads and they are interested in using it. They would call PETSc outside of a threaded section, of course, but can hypre pick up the threads in some way?

Mark