On Wed, Aug 31, 2011 at 00:29, David Fuentes wrote:
> when using the "--download-mpi=yes" option on a small cluster,
> are the configure scripts able to detect an infiniband switch and
> configure/install mpich to communicate over it accordingly ?
>
MPICH2 does not use InfiniBand, you would use
thanks. ended up being something w/ the mpi compilers I was using.
difficult to track down.
works with the --download-mpi=yes petsc config option though!
when using the "--download-mpi=yes" option on a small cluster,
are the configure scripts able to detect an infiniband switch and
configure/inst
On Aug 29, 2011, at 5:49 PM, David Fuentes wrote:
> Is there any reason why petsc compiled to link with goto blas shared
> libraries would not run multi-threaded by default ?
We don't do anything to prevent it from using multi-threaded. Te first thing
I would suggest is make sure it truly is
Is there any reason why petsc compiled to link with goto blas shared
libraries would not run multi-threaded by default ?
I've set (OMP/GOTO)_NUM_THREADS=8
but when I call dgemm from PETSc I can't seem to get it to run on
multiple cores (<= 100% cpu usage from top).
I checked and the test routines
