Hi, Before I used ATLAS for blas/lapack, which worked nice, but which I didn't get to work with HYPRE.
Berend. > Dear Fernando, > > You'll also want to make sure you're using an optimized blas/lapack > for your architecture. > > I'm guessing the ROCKS cluster kernel is better tuned for scientific > computing and network performance than the generic Kubuntu kernel. > Have you tried using a similar kernel to the one provided by ROCKS? > > I'm interested in your results--I've also tinkered a bit with Ubuntu, > especially since the advanced intel compilers are available for free > on it and not in OS X. > > ~A > > On 12/19/06, Berend van Wachem <berend at chalmers.se> wrote: > > Hi Fernando, > > > > Have you tried configuring PETSc with the option > > --with-debugging=0 > > > > That should generate optimized code. > > > > For using hypre, you can specify > > --download-hypre=yes > > > > Good luck, > > > > Berend. > > > > > Dear All, > > > > > > I've found that, for my application, the PETSc that comes in Kubuntu > > > Linux 64 is twice faster than the one we can get in the PETSc's site. I > > > want to use Hypre in my application, but I don't know how to use Hypre > > > with the already compiled PETSc library in Kubuntu. Can you give me > > > some hints in this task? Or maybe tell what should be reason for this > > > difference in performance.. maybe I need some flags in order to > > > optimize PETSc downloaded from the site? > > > > > > Thank you. > > > > > > Fernando Campos
