MVAPICH2 sets all processes to run on the first cpu by default, which is suboptimal when running multiple MVAPICH2 processes.
MVAPICH2 sets all processes to run on the first cpu by default, which is suboptimal when running multiple MVAPICH2 processes.

r20694

idaholab/raven,joshua-cogliati-inl/raven,idaholab/raven,idaholab/raven,joshua-cogliati-inl/raven,joshua-cogliati-inl/raven,idaholab/raven,joshua-cogliati-inl/raven,idaholab/raven,joshua-cogliati-inl/raven,idaholab/raven,joshua-cogliati-inl/raven,idaholab/raven,joshua-cogliati-inl/raven