| Abstract: | D4 zig-zag (D4Z) is a new renumbering scheme for producing a reduced matrix to be solved by an incomplete LU preconditioned, restarted conjugate-gradient iterative solver. By renumbering alternate diagonals in a zig-zag fashion, a very low sensitivity of convergence rate to renumbering direction is obtained. For two demonstration problems involving groundwater flow and solute transport, iteration counts are related to condition numbers and spectra of the reduced matrices. |
| Genre: | Conference Paper |
| ProdID: | 70016927 |
| Citation Author: | Kipp, K. L.; Russell, T. F.; Otto, J. S. |
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| Citation End Page: | 502 |
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| Citation Language: | English |
| Citation Larger Work Title: | Finite Elements in Water Resources, Proceedings of the International Conference |
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| Citation Number Of Pages: | 8 |
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| Citation Publisher: | Publ by Computational Mechanics Publ |
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| Citation Search Results Text: | D4Z - a new renumbering for iterative solution of ground-water flow and solute- transport equations; 1992; Conference Paper; Finite Elements in Water Resources, Proceedings of the International Conference; Kipp, K. L.; Russell, T. F.; Otto, J. S. |
| Citation Start Page: | 495 |
| Citation Volume: | 1 |
| Citation Year: | 1992 |
| Type: | citation/reference |
| Text: | D4Z - a new renumbering for iterative solution of ground-water flow and solute- transport equations; 1992; Conference Paper; Finite Elements in Water Resources, Proceedings of the International Conference; Kipp, K. L.; Russell, T. F.; Otto, J. S. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1992 00:00 -0600 |
| Publisher: | Publ by Computational Mechanics Publ |
