This directory contains a subset of the files from the UMFPACK Version 4.0 (Apr 11, 2002) sparse matrix package. UMFPACK is copyright (c) 2002 by Timothy A. Davis. See License for the UMFPACK license. See README.UMFPACK for the original UMFPACK README file, including the url where the full package (including documentation) may be optained. make.code.defn controls the Cactus compilation of this directory. umfpack_wsolve.c is a copy of umfpack_solve.c to work around limitations in the Cactus make.code.defn system.