Zitat von Thomas Witkowski <Thomas.Witkowski at tu-dresden.de>: > Zitat von Jed Brown <jedbrown at mcs.anl.gov>: > >> On Mon, Nov 21, 2011 at 04:00, Thomas Witkowski < >> Thomas.Witkowski at tu-dresden.de> wrote: >> >>> Some technical question on this point: How can I explicitly factorize a >>> sequential matrix? Is MatLUFactor the correct function to do it? >> >> >> In general, I recommend using the KSP. You can KSPSetType(ksp,KSPPREONLY), >> PCSetType(pc,PCLU). Call KSPSolve() multiple times, the factorization will >> be reused. Or you can use MatLUFactor() directly if you really want. >> >> > > Okay, but how to make use of the KSP in MatMatSolve?
KSPGetOperators?
