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.
https://hal.inria.fr/hal-00772790 Contributor : Emmanuel JeannotConnect in order to contact the contributor Submitted on : Friday, January 11, 2013 - 10:37:21 AM Last modification on : Saturday, June 25, 2022 - 7:46:20 PM Long-term archiving on: : Saturday, April 1, 2017 - 3:46:31 AM
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. ⟨hal-00772790⟩