A_SPARSE

A_SPARSE is an extremely reliable and efficient Iterative Solver Toolkit for solving large linear systems of the form AX=B where A is a sparse unsymmetric structured coefficient matrix. Such problems will typically arise from finite difference or finite volume approximations of a system of Partial Differential Equations on a topologically parallelepiped domain such as are found in 3-D Oil Reservoir Simulations, Semiconductor Device Simulations, and Computational Fluid Dynamics problems. A_SPARSE is based on newly designed incomplete block triangular preconditioning strategies and stabilized variable block versions of GMRES, without restarts. These methods enable A_SPARSE to solve highly ill-conditioned linear systems having virtually any customer specified 3-D approximation stencil.

Russell Sabora

President