Abstract : We discuss some performance issues of the tiled Cholesky factorization on non-uniform memory access-time (NUMA) shared memory machines. We show how to optimize thread placement and data placement in order to achieve performance gain up to 50% compared to state-of-the-art libraries such as Plasma or MKL.
Type de document :
Communication dans un congrès
PAAP 2012 - IEEE International Symposium on Parallel Architectures, Algorithms and Programming, Dec 2012, Taipei, Taiwan. IEEE, 2012
https://hal.inria.fr/hal-00772790
Contributeur : Emmanuel Jeannot
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Soumis le : vendredi 11 janvier 2013 - 10:37:21
Dernière modification le : jeudi 11 janvier 2018 - 06:22:12
Document(s) archivé(s) le : samedi 1 avril 2017 - 03:46:31
Emmanuel Jeannot. Performance Analysis and Optimization of the Tiled Cholesky Factorization on NUMA Machines. PAAP 2012 - IEEE International Symposium on Parallel Architectures, Algorithms and Programming, Dec 2012, Taipei, Taiwan. IEEE, 2012. 〈hal-00772790〉
