Impact of Asynchronism on GPU Accelerated Parallel Iterative Computations

International audience We study the impact of asynchronism on parallel iterative algorithms in the particular context of local clusters of workstations including GPUs. The application test is a classical PDE problem of advection-diffusion-reaction in 3D. We propose an asynchronous version of a previ...

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Bibliographic Details
Main Authors: Contassot-Vivier, Sylvain, Jost, Thomas, Vialle, Stéphane
Other Authors: Algorithms for the Grid (ALGORILLE), INRIA Lorraine, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), Institut National de Recherche en Informatique et en Automatique (Inria)-Université Henri Poincaré - Nancy 1 (UHP)-Université Nancy 2-Institut National Polytechnique de Lorraine (INPL)-Centre National de la Recherche Scientifique (CNRS)-Université Henri Poincaré - Nancy 1 (UHP)-Université Nancy 2-Institut National Polytechnique de Lorraine (INPL)-Centre National de la Recherche Scientifique (CNRS), SUPELEC-Campus Metz, Ecole Supérieure d'Electricité - SUPELEC (FRANCE), Georgia Tech Lorraine Metz, Ecole Nationale Supérieure des Arts et Metiers Metz-Georgia Institute of Technology Atlanta -Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC), Kristján Jónasson
Format: Conference Object
Language:English
Published: HAL CCSD 2010
Subjects:
[INFO.INFO-DC]Computer Science [cs]/Distributed
Parallel
and Cluster Computing [cs.DC]
Reykjavík
Iceland
Online Access:https://hal-supelec.archives-ouvertes.fr/hal-00685153
https://hal-supelec.archives-ouvertes.fr/hal-00685153/document
https://hal-supelec.archives-ouvertes.fr/hal-00685153/file/SCV_Para2012_LNCS7133.pdf
https://doi.org/10.1007/978-3-642-28151-8_5
Description
Summary:International audience We study the impact of asynchronism on parallel iterative algorithms in the particular context of local clusters of workstations including GPUs. The application test is a classical PDE problem of advection-diffusion-reaction in 3D. We propose an asynchronous version of a previously developed PDE solver using GPUs for the inner computations. The algorithm is tested with two kinds of clusters, a homogeneous one and a heterogeneous one (with different CPUs and GPUs).

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