Section: New Software and Platforms
MaPHyS (Massively Parallel Hybrid Solver) is an hybrid iterative/direct parallel (MPI-threads) sparse linear solver based on algebraic domain decomposition technique for real/complex symmetric positive definite/unsym/-metric matrices. For a given number of MPI processes/domains, MaPHyS solves the Schur complement computed from the adjacency graph of the sparse matrix using a preconditioned Krylov subspace method (CG or GMRES). The provided preconditioners are variants of an algebraic Additive Schwarz methods. A prototype version of a two level precondionner using an algebraic coarse space is available but not yet publicly distributed (provided upon request for beta testers).