From: John Peterson <jwpeterson@gm...>  20090120 15:13:12

On Tue, Jan 20, 2009 at 7:58 AM, Roy Stogner <roystgnr@...> wrote: > > On Tue, 20 Jan 2009, Petry Stefan wrote: > >> is der anybody who has used the Intel Math Kernel Library for >> solving equationsystem? If yes, can anybody tell me how I can use >> this with libMesh  systemmatrix? > > You can't use it directly, but the linear algebra packages libMesh > links to can use it. Compile PETSc with the Intel MKL, then compile > libMesh with your PETSC_DIR/PETSC_ARCH pointing to that PETSc build. It might be kind of a fun project to reimplement some of the DenseMatrix member functions to use Lapack/BLAS routines. The path of least resistance would probably be to use whatever BLAS PETSc uses, falling back on the present routines if there is no PETSc.  John 