A. M. Bruaset, H. P. Langtangen, and G. W. Zumbusch.
Domain decomposition and multilevel methods in Diffpack.
In P. E. Bjørstad, M. S. Espedal, and D. E. Keyes, editors,
Proceedings of Domain Decomposition Methods 9, DD9, pages 655-662, Bergen,
Norway, 1998. Domain Decomposition Press.
also as report STF42 F96017, Sintef Applied Mathematics, Oslo, 1996.
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... Domain decomposition and multilevel methods contain a variety of more standard numerical building blocks (linear solvers, matrix assembly, interpolation of fields etc.). Successful software for complicated applications must offer the user a flexible run-time combination of all these different components. The purpose of the present paper is to describe how one can achieve such flexible software. In particular, we present a unified framework for domain decomposition and multilevel methods, and show how this framework can be efficiently implemented in existing software packages for PDEs.