Validating Wrekavoc: A tool for heterogeneity emulation

Olivier Dubuisson (1) , Jens Gustedt (2) , Emmanuel Jeannot (2)

1 Félix Informatique
2 ALGORILLE - Algorithms for the Grid

Experimental validation and testing of solutions designed for heterogeneous environment is a challenging issue. Wrekavoc is a tool for performing such validation. It runs unmodified applications on emulated multisite heterogeneous platforms. Therefore it downgrades the performance of the nodes (CPU and memory) and the interconnection network in a prescribed way. We report on new strategies to improve the accuracy of the network and memory models. Then, we present an experimental validation of the tool that compares executions of a variety of application code. 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., x-language = en, x-international-audience = yes

Domaines: Calcul parallèle, distribué et partagé [cs.DC]; Performance et fiabilité [cs.PF]

Olivier Dubuisson, Jens Gustedt, Emmanuel Jeannot. Validating Wrekavoc: A tool for heterogeneity emulation. Heterogenity in Computing Workshop (HCW 09) in International Parallel and Distributed Processing Symposium - IPDPS 2009, May 2009, Rome, Italy. pp.1-12, ⟨10.1109/IPDPS.2009.5160913⟩. ⟨inria-00435609⟩