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Scheduling Divisible Workloads on Heterogeneous Platforms

Olivier Beaumont 1, 2 Arnaud Legrand 3 Yves Robert 3 
1 SCALAPPLIX - Algorithms and high performance computing for grand challenge applications
INRIA Futurs, Université Bordeaux Segalen - Bordeaux 2, Université Sciences et Technologies - Bordeaux 1, École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), CNRS - Centre National de la Recherche Scientifique : UMR5800
3 GRAAL - Algorithms and Scheduling for Distributed Heterogeneous Platforms
Inria Grenoble - Rhône-Alpes, LIP - Laboratoire de l'Informatique du Parallélisme
Abstract : In this paper, we discuss several algorithms for scheduling divisible workloads on heterogeneous systems. Our main contributions are (i) new optimality results for single-round algorithms and (ii) the design of an asymptotically optimal multi-round algorithm. This multi-round algorithm automatically performs resource selection, a difficult task that was previously left to the user. Because it is periodic, it is simpler to implement, and more robust to changes in the speeds of the processors and/or communication links. On the theoretical side, to the best of our knowledge, this is the first published result assessing the absolute performance of a multi-round algorithm. On the practical side, extensive simulations reveal that our multi-round algorithm outperforms existing solutions on a large variety of platforms, especially when the communication-to-computation ratio is not very high (the difficult case).
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Submitted on : Monday, February 18, 2013 - 11:50:54 AM
Last modification on : Tuesday, October 25, 2022 - 4:22:45 PM

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Olivier Beaumont, Arnaud Legrand, Yves Robert. Scheduling Divisible Workloads on Heterogeneous Platforms. Parallel Computing, 2003, 29, pp.1121―1152. ⟨10.1016/S0167-8191(03)00095-4⟩. ⟨hal-00789431⟩



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