What solvers does Sundance use?
Sundance uses the Trilinos family of solvers. Many linear solvers are available, both iterative and direct. A number of types of preconditioning are available: in particular domain decomposition and incomplete factorization through Ifpack, and algebraic multilevel through ML. All Trilinos iterative solvers and preconditioners are fully parallel. Direct solvers such as Super LU and UMFPACK are available through the Amesos package; not all Amesos solvers are capable of parallel solves. For nonlinear solvers, the NOX subpackage of Trilinos is used. Numerous options for solver method, update, line search, and convergence checking are available in NOX.
