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Conjugate gradient iteration to solve A*x=b

Conjugate gradient iteration to solve A*x=b

Conjugate gradient iteration to solve A*x=b. x 0 = 0, r 0 = b, d 0 = r 0 (these are all vectors) for k = 1, 2, 3, . . . ? k = (r T k-1 r k-1 ) / (d T k-1 Ad k-1 ) step length x k = x k-1 + ? k d k-1 approximate solution

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741 views • 73 slides
CS 240A: Graph and hypergraph partitioning

CS 240A: Graph and hypergraph partitioning

CS 240A: Graph and hypergraph partitioning. Thanks to Aydin Buluc, Umit Catalyurek, Alan Edelman, and Kathy Yelick for some of these slides. CS 240A: Graph and hypergraph partitioning. Motivation and definitions Motivation from parallel computing Theory of graph separators

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797 views • 61 slides
Multilevel Graph Partitioning and Fiduccia-Mattheyses

Multilevel Graph Partitioning and Fiduccia-Mattheyses

Multilevel Graph Partitioning and Fiduccia-Mattheyses. Wasim Mohiuddin. Papers. A Fast and High Quality Multilevel Scheme for Partitioning Irregular Graphs, 1995 A Coarse-Grain Parallel Formulation of Multilevel k-way Graph Partitioning Algorithm, 1997 Authors: George Karypis and Vipin Kumar

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629 views • 32 slides
Multilevel Graph Partitioning and Fiduccia-Mattheyses

Multilevel Graph Partitioning and Fiduccia-Mattheyses

Multilevel Graph Partitioning and Fiduccia-Mattheyses. Wasim Mohiuddin. Papers. A Fast and High Quality Multilevel Scheme for Partitioning Irregular Graphs, 1995 A Coarse-Grain Parallel Formulation of Multilevel k-way Graph Partitioning Algorithm, 1997 Authors: George Karypis and Vipin Kumar

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757 views • 32 slides
Multilevel Graph Partitioning and Fiduccia-Mattheyses

Multilevel Graph Partitioning and Fiduccia-Mattheyses

Multilevel Graph Partitioning and Fiduccia-Mattheyses. Wasim Mohiuddin. Papers. A Fast and High Quality Multilevel Scheme for Partitioning Irregular Graphs, 1995 A Coarse-Grain Parallel Formulation of Multilevel k-way Graph Partitioning Algorithm, 1997 Authors: George Karypis and Vipin Kumar

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462 views • 32 slides

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