[petsc-users] Very poor speed up performance

[Jed Brown]

On Wed, Dec 22, 2010 at 18:53, Satish Balay <balay at mcs.anl.gov> wrote:

> You'll have to look for the CPU/chipset hardware documentation - and
> look at the details - and sometimes they mention these details..
>

hwloc shows the cache hierarchy.  http://www.open-mpi.org/projects/hwloc/
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