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A dynamic scheduling framework for emerging heterogeneous systems

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2 Author(s)
Ravi, V.T. ; Dept. of Comput. Sci. & Eng., Ohio State Univ., Columbus, OH, USA ; Agrawal, G.

A trend that has materialized, and has given rise to much attention, is of the increasingly heterogeneous computing platforms. Recently, it has become very common for a desktop or a notebook computer to be equipped with both a multi-core CPU and a GPU. Application development for exploiting the aggregate computing power of such an environment is a major challenge today. Particularly, we need dynamic work distribution schemes that are adaptable to different computation and communication patterns in applications, and to various heterogeneous configurations. This paper describes a general dynamic scheduling framework for mapping applications with different communication patterns to heterogeneous architectures. We first make key observations about the architectural tradeoffs among heterogeneous resources and the communication pattern of an application, and then infer constraints for the dynamic scheduler. We then present a novel cost model for choosing the optimal chunk size in a heterogeneous configuration. Finally, based on general framework and cost model we provide optimized work distribution schemes to further improve the performance.

Published in:

High Performance Computing (HiPC), 2011 18th International Conference on

Date of Conference:

18-21 Dec. 2011