[petsc-users] Building with MKL 10.3

[Jed Brown]

On Tue, Mar 15, 2011 at 22:30, Robert Ellis <Robert.Ellis at geosoft.com>wrote:

> Regardless of setting the number of threads for MKL or OMP, the MKL
> performance was worse than simply using --download-f-blas-lapack=1.


Interesting. Does this statement include using just one thread, perhaps with
a non-threaded MKL? Also, when you used threading, were you putting an MPI
process on every core or were you making sure that you had enough cores for
num_mpi_processes * num_mkl_threads?
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