Hi, does petsc currently support QR factorization? 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. Thanks, Arvid