Zin: See petsc/src/mat/examples/tests/ex130.c petsc/src/ksp/ksp/examples/tutorials/ex52.c
Hong Hi > > I would like to know how I can retrieve the lower triangular matrix > (possibly permuted or preferably the inverse of L) and the upper triangular > matrix (preferably the inverse of U) from the LU factorization done by an > external package (such as MUMPS). > I need them to build a preconditioner of a much larger size for a 3D > problem. > > Thanks, > Zin > > -- > Zin Lin > >
