> > > > does petsc currently support QR factorization? No. > > I saw that it is supposedly provided by an interface to the spooles > > package, however the comment in MatQRFactorSymbolic_SeqAIJSpooles > > that says > > SETERRQ(PETSC_ERR_SUP,"QR Factorization is unsupported as the Spooles > > implementation of QR is invalid."); > > seems to imply that it is not working.
Spooles' QR doesn't work, so we gave up our interface to it. Hong
