[petsc-users] Pthread support

[Barry Smith]

On Jul 23, 2012, at 10:22 PM, Jed Brown wrote:

> On Mon, Jul 23, 2012 at 10:19 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> Yes, but is PETSc built with MPI?  PETSc does not decide on which core to run the program, but MPI might.
> 
> Well, PETSc is setting affinity if it can when you use threads.

  Jed,

   So maybe that is the problem. PETSc is forcing affinity to a hardware number core regardless of whether another PETSc program is running and has also forced that same core?

   Barry