Near-Optimal Placement of MPI processes on Hierarchical NUMA Architectures

Emmanuel Jeannot 1, 2 Guillaume Mercier 1, 2
1 RUNTIME - Efficient runtime systems for parallel architectures
Inria Bordeaux - Sud-Ouest, UB - Université de Bordeaux, CNRS - Centre National de la Recherche Scientifique : UMR5800
Abstract : MPI process placement can play a deterministic role concerning the application performance. This is especially true with nowadays architecture (heterogenous, multicore with different level of caches, etc.). In this paper, we will describe a novel algorithm called TreeMatch that maps processes to resources in order to reduce the communication cost of the whole application. We have implemented this algorithm and will discuss its performance using simulation and on the NAS benchmarks.
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Conference papers
Pasqua D'Ambra and Mario Rosario Guarracino and Domenico Talia. Europar, Aug 2010, Ischia, Italy. Springer, 6272, pp.199-210, 2010, Lecture Notes on Computer Science; Euro-Par 2010 - Proceedings of 16th International Euro-Par Conference. <http://www.springerlink.com/content/xp747253w1641rk3/>. <10.1007/978-3-642-15291-7_20>
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Emmanuel Jeannot, Guillaume Mercier. Near-Optimal Placement of MPI processes on Hierarchical NUMA Architectures. Pasqua D'Ambra and Mario Rosario Guarracino and Domenico Talia. Europar, Aug 2010, Ischia, Italy. Springer, 6272, pp.199-210, 2010, Lecture Notes on Computer Science; Euro-Par 2010 - Proceedings of 16th International Euro-Par Conference. <http://www.springerlink.com/content/xp747253w1641rk3/>. <10.1007/978-3-642-15291-7_20>. <inria-00544346>

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