This is a repository for information related to multigrid, multilevel, multiscale, aggregation, defect correction, and domain decomposition methods. These methods are used primarily by scientists and engineers to solve partial differential equations on serial or parallel computers. Multigrid has the property of using linear time and space to solve a collection of interesting problems, thus making it a very fast, robust solver. Domain decomposition methods are extremely useful for solving problems on oddly shaped domains or for parallelizing standard iterative methods. MGNet is large. There are about 2,000 files in it. You may want to look at the index to get a general idea what is here. MGNet started out as an anonymous ftp site in 1991, but changed a few years later into a mirrored web site once the world wide web was invented.

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