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, I

代码中有Jacobi, Gauss-Seidel,SSOR ,CG, Steppest descent 的fortran实现(this file tell you how to implement Jacobi, Gauss-Seidel,SSOR ,CG, Steppest descent by fortran)