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Home | Seminars and Symposia | Past seminars/symposia: Monday, May 18, 2009

DTC Seminar Series

Controlling the Heterogeneity of a Cluster With Wrekavoc


Emmanuel Jeannot

Monday, May 18, 2009
11:00–11:30 am

404 Walter Library

Experimental validation and testing of solutions designed for heterogeneous environment is a challenging issue. It is required to have a controllable and reproducible environment to perform valid experiments. Wrekavoc is a tool where we can emulate the heterogeneity of a a given setting using an homogeneous environment. It runs unmodified applications on emulated multisite heterogeneous platforms. To this end, it downgrades the performance of the nodes (CPU and memory) and the interconnection network in a prescribed way. We present this tool and its validation. The comparison of a real heterogeneous platform is done against the emulation of that platform with Wrekavoc. The measurements show that our approach allows for a close reproduction of the real measurements in the emulator.


Emmanuel Jeannot is a full-time researcher at INRIA (The French National Institute for Computer Science and Control) and is doing his research at the LORIA (Laboratoire Lorrain de Recherche en Informatique et ses Applications) in Nancy, France. From sept. 1999 to sept. 2005 he was associate professor at the Université Henry Poincaré, Nancy 1. He got his PhD and Master degree of computer science in 1996 and 1999, respectively, both from Ecole Normale Supérieure de Lyon. His main research interests are scheduling for heterogeneous environments and grids, data redistribution, grid computing software, adaptive online compression, programming models, experimental computer science and managing uncertainties in large-scale environment. More information is available at: