[petsc-users] Monte carlo for eigenvalue problem in paralle

Matthew Knepley knepley at gmail.com
Wed Jan 21 09:53:20 CST 2015

On Wed, Jan 21, 2015 at 9:51 AM, siddhesh godbole <
siddhesh4godbole at gmail.com> wrote:

> Hello,
> I want to execute Monte Carlo simulations for eigenvalue problem in
> parallel with PETSC. i am using LAPACKsygvx function to compute all the
> eigenvalues. Now the problem i am facing is that, i think LAPACKsygvx
> requires Matrices to be declared as MATSEQDENSE, and this sequential type
> is not allowing me to execute this program on multiple processors.
> How should i go about this problem? can i use different communicators or
> something? Please help!

Do you need all the eigenvalues? If so, you can try to use Elemental, with
the development version of PETSc.



> *Siddhesh M Godbole*
> 5th year Dual Degree,
> Civil Eng & Applied Mech.
> IIT Madras

What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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