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Computer Architecture and High Performance Computing, Symposium on (2009)
Sao Paolo, Brazil
Oct. 28, 2009 to Oct. 31, 2009
ISSN: 1550-6533
ISBN: 978-0-7695-3857-0
pp: 83-90
We have been witnessing a continuous growth of both heterogeneous computational platforms (e.g., Cell blades, or the joint use of traditional CPUs and GPUs) and multi- core processor architecture; and it is still an open question how applications can fully exploit such computational potential efficiently. In this paper we introduce a run-time environment and programming framework which supports the implementation of scalable and efficient parallel applications in such heterogeneous, distributed environments. We assess these issues through well-known kernels and actual applications that behave regularly and irregularly, which are not only relevant but also demanding in terms of computation and I/O. Moreover, the irregularity of these, as well as many other applications poses a challenge to the design and implementation of efficient parallel algorithms. Our experimental environment includes dual and octa-core machines augmented with GPUs and we evaluate our framework performance for standalone and distributed executions. The evaluation on a distributed environment has shown near to linear scale-ups for two data mining applications, while the applications performance, when using CPU and GPU, has been improved into around 25%, compared to the GPU-only versions.
Distributed computing, Blades, Computer architecture, Runtime environment, Parallel programming, Kernel, Concurrent computing, Algorithm design and analysis, Parallel algorithms, Data mining, GPGPU, Distributed systems

"Exploiting Computational Resources in Distributed Heterogeneous Platforms," Computer Architecture and High Performance Computing, Symposium on(SBAC-PAD), Sao Paolo, Brazil, 2009, pp. 83-90.
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