On Tue, Jan 8, 2013 at 12:33 PM, Petar Petrovic <ppetrovic573 at gmail.com>wrote:
> Thank you very much. > Can you tell me how to set the package that is used for MatCholeskyFactor? > I need it to run for a sparse matrix so I have tried using: > > #ifdef PETSC_HAVE_CHOLMOD > ... > #endif > > but the code inside doesn't run. Does this mean that the package is not > installed or am I supposed to do something else, use some command line > options or something? Sorry these are very basic questions, but I am new to > PETSc and I cannot seem to find examples for this. > You need to activate 3rd party packages during configure, e.g. --download-umfpack. http://www.mcs.anl.gov/petsc/documentation/installation.html Matt > On Tue, Jan 8, 2013 at 12:24 PM, Matthew Knepley <knepley at gmail.com>wrote: > >> http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html >> >> Matt >> >> >> On Tue, Jan 8, 2013 at 11:21 AM, Petar Petrovic <ppetrovic573 at >> gmail.com>wrote: >> >>> Hello, >>> Can you please tell me for which type of matrices can I run Cholesky >>> factorization (MatCholeskyFactor) ? Can it be applied on sparse matrices, >>> e.g. MATAIJ ? >>> Many thanks >>> >> >> >> >> -- >> 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 >> > > -- 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130108/7029ed13/attachment.html>
