多核處理器的加速比研究與熱設(shè)計
[Abstract]:At the beginning of this century, the road of improving the main frequency has reached the inflection point, and the multi-core processor has emerged as the times require, and has gradually become a research hotspot. The important evaluation index of processor is speed and power consumption. How to accelerate speed and reduce power consumption has become the focus of this paper. A comparative study is carried out on the basis of theoretical calculation within the limits of temporary conditions. There are two main objectives of this work: one is to recalculate the speedup of multi-core processors based on Amdal's law, so as to analyze and design faster multi-core processors, and the other is to design low-power CMOS circuits. The low-power design method of multi-core processor is studied in order to pave the way for the study of two-dimensional / three-dimensional multi-core processor thermal design. The main contents of this paper are as follows: (1) the concept of speedup is produced when the speed of processing is measured by computing time. (2) We review the criteria given by Amdal's Law to evaluate the acceleration performance of parallel computers, and then merge Rand's Law with Amdal's Law. Based on the first principle, a new speedup description model (). (3) is proposed to discuss the comparison of symmetric and asymmetric multicore architectures. The time cost descriptions of the two architectures are given, and a more accurate description of asymmetric architectures is obtained. (4) analyze the distribution and type of circuit power consumption, summarize the strategies and methods of low power design, and then discuss three thermal design methods of multi-core processor: hot hole technology; Voltage Island Technology; dynamic Heat Management. The main results and conclusions of this paper are as follows: (1) the new speedup description model (exponential model Speedup=m 偽 f) proposed in this paper is feasible; (2) the performance of asymmetric multicore architecture is superior to that of symmetric multicore architecture under most conditions.
【學(xué)位授予單位】:蘇州大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2012
【分類號】:TP332
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