Implementation of the AdaBoost Algorithm for Large Scale Distributed Environments: Comparing JavaSpace and MPJ
Identifieur interne : 003301 ( Main/Exploration ); précédent : 003300; suivant : 003302Implementation of the AdaBoost Algorithm for Large Scale Distributed Environments: Comparing JavaSpace and MPJ
Auteurs : Virginie Galtier [France] ; Stéphane Genaud [France] ; Stéphane Vialle [France]Source :
Abstract
This paper presents the parallelization of a machine learning method, called the adaboost algorithm. The parallel algorithm follows a dynamically load-balanced master-worker strategy, which is parameterized by the granularity of the tasks distributed to workers. We first show the benefits of this version with heterogeneous processors. Then, we study the application in a real, geographically distributed environment, hence adding network latencies to the execution. Performances of the application using more than a hundred processes are analyzed in both JavaSpace and {\pmpi}. We therefore present an head-to-head comparison of two parallel programming models. We study for each case the granularities yielding the best performance. We show that current network technologies enable to obtain interesting speedups in many situations for such an application, even when using a virtual shared memory paradigm in a large-scale distributed environment.
Url:
DOI: 10.1109/ICPADS.2009.67
Affiliations:
- France
- Grand Est, Lorraine (région)
- Nancy
- Institut national polytechnique de Lorraine, Université Nancy 2, Université de Lorraine
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The parallel algorithm follows a dynamically load-balanced master-worker strategy, which is parameterized by the granularity of the tasks distributed to workers. We first show the benefits of this version with heterogeneous processors. Then, we study the application in a real, geographically distributed environment, hence adding network latencies to the execution. Performances of the application using more than a hundred processes are analyzed in both JavaSpace and {\pmpi}. We therefore present an head-to-head comparison of two parallel programming models. We study for each case the granularities yielding the best performance. We show that current network technologies enable to obtain interesting speedups in many situations for such an application, even when using a virtual shared memory paradigm in a large-scale distributed environment.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Nancy</li></settlement><orgName><li>Institut national polytechnique de Lorraine</li><li>Université Nancy 2</li><li>Université de Lorraine</li></orgName></list><tree><country name="France"><noRegion><name sortKey="Galtier, Virginie" sort="Galtier, Virginie" uniqKey="Galtier V" first="Virginie" last="Galtier">Virginie Galtier</name></noRegion><name sortKey="Genaud, Stephane" sort="Genaud, Stephane" uniqKey="Genaud S" first="Stéphane" last="Genaud">Stéphane Genaud</name><name sortKey="Vialle, Stephane" sort="Vialle, Stephane" uniqKey="Vialle S" first="Stéphane" last="Vialle">Stéphane Vialle</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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