BlockSolve95 The main focus of the BlockSolve package is the implementation of SSOR and ILU preconditioners based on a parallel multi-colouring algorithm by the authors. The algorithm first computes a quotient graph of the matrix graph by eliminating cliques and identical nodes. Operations on the nodes of this quotient graph then become of BLAS2/3 type, leading to a high performance.

BlockSolve can be used with the Petsc package; section 3.10.

Mon Aug 25 17:46:10 PDT 1997