IML++ The IML++ package consists of C++ implementation of the iterative methods from the templates project . It relies on the user supplying Matrix, Vector, and Preconditioner classes that implement the required operations.
An example implementation of such classes called Sparselib++ is available from the same authors. It contains uni-processor matrix classes based on compressed row and column and coordinate storage, a vector class, and Jacobi and ILU/IC preconditioners for the compressed row and column matrices. Additionally it contains tools for converting a Harwell-Boeing matrix or matrix file to these formats.