Introduction - If you have any usage issues, please Google them yourself
Sixpack is a library of solvers that may be used to solve structured finite volume and finite difference discretisations of PDE s. The solvers include static methods like Jacobi s Method, SOR, SSOR, RBSOR, incomplete factorisation methods like ILU, ILDL, SIP, MSI, Krylov space methods like CG and, BiCGSTAB (with a variety of preconditioners), and a multigrid solver using Jacobi, ILU, ILDL and SIP for smoothing. In addition there is a block tridiagonal solver for when you want to try a direct method.