Hi
I am trying to use multigrid to solve a large sparse linear system. I
use Hypre boomeramg as the preconditioner. The code calling KSPSolve is
paralleled by MPI.
I want to set Hypre to use OpenMP. Here is what I did:
* I downloaded and compiled Hypre through Petsc
* I recompiled the Hypre with " --with-opemp ".
* I set "-pc_type hypre" and "-pc_type_type boomeramg" for Petsc.
My question:
? In this way, would Hypre use OpenMP to parallel the execution when
KSPSolve is called ?
? If this does not work, is there another way I can set Hypre to use
OpenMP under Petsc ?
? Is there a way I can know explicitly whether Hypre is using OpenMP
under Petsc or not ?
Thank you so much
Frank
