On Thu, Dec 19, 2013 at 4:44 PM, James A Charles <[email protected]>wrote:
> Hello, > > I want to redistribute a matrix across MPI processes (block tridiagonal of > around size 20,000) for use with Arpack so that I can solve for eignepairs > in parallel. Is this possible and if so what is the best way to do this? > The easiet way is probably http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatGetSubMatrix.html, but there is also http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatPermute.html . Matt > Thanks, > James Charles > -- 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
