Exploiting H-Matrices in Sparse Direct Solvers

Abstract : In this talk, we describe a preliminary fast direct solver using HODLR library to compress large blocks appearing in the symbolic structure of the PaStiX sparse direct solver. We will present our general strategy before analyzing the practical gains in terms of memory and floating point operations with respect to a theoretical study of the problem. Finally, we will discuss ways to enhance the overall performance of the solver.
Type de document :
Communication dans un congrès
SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France. 2016, 〈http://www.siam.org/meetings/pp16/〉
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https://hal.inria.fr/hal-01251812
Contributeur : Pierre Ramet <>
Soumis le : mercredi 6 janvier 2016 - 17:28:42
Dernière modification le : jeudi 11 janvier 2018 - 06:22:35

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  • HAL Id : hal-01251812, version 1

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Grégoire Pichon, Eric Darve, Mathieu Faverge, Pierre Ramet, Jean Roman. Exploiting H-Matrices in Sparse Direct Solvers. SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France. 2016, 〈http://www.siam.org/meetings/pp16/〉. 〈hal-01251812〉

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