Exploiting the Cell/BE architecture with the StarPU unified runtime system - SAMOS Workshop 2009

Exploiting the Cell/BE architecture with the StarPU unified runtime system - SAMOS Workshop 2009

Cédric Augonnet, Samuel Thibault, Raymond Namyst, and Maik Nijhuis

Abstract. Core specialization is currently one of the most promising ways for designing power-efficient multicore chips. However, approaching the theoretical peak performance of such heterogeneous multicore architectures with specialized accelerators, is a complex issue. While substantial effort has been devoted to efficiently offloading parts of the computation, designing an execution model that unifies all computing units is the main challenge.
We therefore designed the STARPU runtime system for providing portable sup- port for heterogeneous multicore processors to high performance applications and compiler environments. STARPU provides a high-level, unified execution model which is tightly coupled to an expressive data management library. In addition to our previous results on using multicore processors alongside with graphic proces- sors, we show that STARPU is flexible enough to efficiently exploit the heteroge- neous resources in the CELL processor. We present a scalable design supporting multiple different accelerators while minimizing the overhead on the overall sys- tem. Using experiments with classical linear algebra algorithms, we show that STARPU improves programmability and provides performance portability.

Keywords: Cell, StarPU

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Bibtex

@InProceedings{AugThiNamNij09Samos,
author = {C{'e}dric Augonnet and Samuel Thibault and Raymond Namyst and Maik Nijhuis},
title = {Exploiting the {Cell/BE} architecture with the {StarPU} unified runtime system},
booktitle = {SAMOS Workshop - International Workshop on {S}ystems, {A}rchitectures, {M}odeling, and {S}imulation},
year = {2009},
month = JUL,
series = {Lecture Notes in Computer Science},
address = {Samos, Greece},
keywords = {StarPU},
doi = {10.1007/978-3-642-03138-0_36},
url = {http://hal.inria.fr/inria-00378705}
}