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Journal Articles Journal of Systems and Software Year : 2010

Defining and Controlling the Heterogeneity of a Cluster: the Wrekavoc Tool

Abstract

The experimental validation and the testing of solutions that are designed for heterogeneous environments is challenging. We introduce Wrekavoc as an accurate tool for this purpose: it runs unmodified applications on emulated multisite heterogeneous platforms. Its principal technique consists in downgrading the performance of the platform characteristics in a prescribed way. The platform characteristics include the compute nodes themselves (CPU and memory) and the interconnection network for which a controlled overlay network above the homogeneous cluster is built. In this article we describe the tool, its performance, its accuracy and its scalability. Results show that Wrekavoc is a very versatile tool that is useful to perform high-quality experiments (in terms of reproducibility, realism, control, etc.
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Dates and versions

inria-00438616 , version 1 (04-12-2009)

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Louis-Claude Canon, Olivier Dubuisson, Jens Gustedt, Emmanuel Jeannot. Defining and Controlling the Heterogeneity of a Cluster: the Wrekavoc Tool. Journal of Systems and Software, 2010, 83 (5), pp.786-802. ⟨10.1016/j.jss.2009.11.734⟩. ⟨inria-00438616⟩
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