Hey Matt, You should probably clean up the documentation for MatMatSolve while you're at it, it's indicating that x and b are vectors... Also, should you reference the factor routine you need to use to get a factored matrix?
~A On Wed, Feb 27, 2008 at 2:12 PM, Matthew Knepley <knepley at gmail.com> wrote: > On Wed, Feb 27, 2008 at 11:05 AM, Yujie <recrusader at gmail.com> wrote: > > Dear Sanjay: > > > > Thank you for your reply. I don't understand what you said. Now, I want to > > use spooles package to inverse a sparse SPD matrix. I have further checked > > the inferface about spooles in PETSc. I find although spooles can deal with > > AX=B (B may be a dense matrix) with parallel LU factorization. > > However, PETSc only provide the following: > > 51: PetscErrorCode MatSolve_MPISpooles(Mat A,Vec b,Vec x) > > I don't set b to a matrix even if I use > > 178: PetscErrorCode MatFactorNumeric_MPISpooles(Mat A,MatFactorInfo > > *info,Mat *F) for LU factorization. > > > > Could you have any suggestions about this? thanks a lot. > > MatMatSolve() > > > http://www-unix.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Mat/MatMatSolve.html > > Matt > > > > > Regards, > > Yujie > > > > On 2/26/08, Sanjay Govindjee <sanjay at ce.berkeley.edu> wrote: > > > from my make file > > > > > > -@${MPIRUN} -s all -np $(NPROC) $(PROGNAME) -ksp_type preonly > > > -ksp_monitor -pc_type cholesky -mat_type mpisbaijspooles -log_summary > > > -on_error_attach_debugger -mat_spooles_symmetryflag 0 -options_left > > > > > > > > > -sg > > > > > > > > > Yujie wrote: > > > > Hi, everyone > > > > > > > > I have compiled PETSc with spooles. However, I try to find how to use > > > > this package in PETSc directory. I can't find any examples for it. > > > > Could you give me some advice? I want to use spooles to inverse a > > > > sparse matrix. thanks a lot. > > > > > > > > Regards, > > > > Yujie > > > > > > > > > > > > > > -- > 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 > >
