H_SPARSE

H_SPARSE is an extremely efficient and reliable Iterative Solver for solving very large hybrid linear systems of the form AX=B where A is a positive definite or weakly indefinite unstructured sparse complex symmetric coefficient matrix containing large dense blocks. H_SPARSE is oriented to iterative solution of large linear systems originating from Finite Element/Boundary Element approximations of 3-D volume parametric computational electromagnetic problems and 3-D eddy current simulations. H_SPARSE is based on recent mathematical results in sparse/dense matrix approximations, least rank block diagonally perturbed block incomplete triangular factorizations, and uses a stabilized variable block version of GMRES (without restarts) for its iteration phase.

Russell Sabora

President