Asymptotic performance analysis and optimization of resource-constrained multi-core architectures

Asymptotic performance analysis and optimization of resource-constrained multi-core architectures,10.1109/ICM.2008.5393801,Jeong-Gun Lee,Eungu Jung,Do

Asymptotic performance analysis and optimization of resource-constrained multi-core architectures   (Citations: 2)
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Multi-core processor architectures are gaining huge interests from academia and industry. The multi-core architectures have been proposed and designed for overcoming diminishing return and for efficiently utilizing the exponentially increasing number of transistors available in nano-meter semiconductor technology. Though the multi-core architecture has been proposed as a promising alternative to a traditional monolithic core architecture, performance characteristics and benefits of the multi-core architecture are not well studied. In this paper, we develop an asymptotic analysis model for better understanding the performance characteristics of multi-core processor architectures using Amdahl's law in order to foresee their performance impact for a given workload characteristics (e.g. available parallelism). Through the asymptotic analysis based on the models proposed in this paper, we can make the architectural design decisions such as ¿the number of cores¿ and ¿core size¿, and further we can probe the possible research direction of optimizing the performance of multi-core architectures.
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    • ...The function, perf(r), can be measured in instruction per second, and thus the perf(r )c an be expressed in the product of instruction per cycle (IPC ) and clock frequency f (that is, perf(r )= IPC × f ). In [7], we derived the function as “perf(r )= k · G β ”w ith two parameters k and β .I f “perf( r )= k · r β ” is applied to Eq. 1 then the speedup equation based on an Amdahl’s law for a resource-constrained multi-core ...
    • ...In a resource unconstrained case as shown in Fig. 1(a), around 10 times speedup is achieved when 90% parallelism is extractable from applications [7]...
    • ...Since the normal value of β lies in the range between 0.4 and 0.7, ‘2/3’ is a reasonable value for the β in a general processor architecture [7]...

    Jeong-gun Leeet al. An Asymptotic Performance/Energy Analysis and Optimization of Multi-co...

    • ...A set of equations are derived based on Amdahl’s law asymptotically capturing the performance benefits of a multicore processor [6]...

    A. S. Radhamaniet al. Research on Power Optimization Techniques for Multi Core Architectures

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