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2016•International Journal of Advanced Computer Science and ApplicationsOpen access

Analyzing Data Reusability of Raytrace Application in Splash2 Benchmark

Hao D., Vinh Ngo-Quang

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Abstract

When designing a chip multiprocessors, we use Splash2 to estimate its performance. This benchmark contains eleven applications. The performance when running them is similar, except Raytrace. We analyse it to clarity why the performance is not good. We discover, in theory, Raytrace never reuses data. This leads the fact that the performance is not good due to the low hit ratio in data cache.

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What this paper is about

When designing a chip multiprocessors, we use Splash2 to estimate its performance. This benchmark contains eleven applications. The performance when running them is similar, except Raytrace. We analyse it to clarity why the performance is not good. We discover, in theory, Raytrace never reuses data. This leads the fact that the performance is not good due to the low hit ratio in data cache.

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Available abstract

When designing a chip multiprocessors, we use Splash2 to estimate its performance. This benchmark contains eleven applications. The performance when running them is similar, except Raytrace. We analyse it to clarity why the performance is not good. We discover, in theory, Raytrace never reuses data. This leads the fact that the performance is not good due to the low hit ratio in data cache.

Key concepts: Computer science, Benchmark (surveying), Reusability, Cache, CLARITY, Parallel computing, Operating system, Software

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