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The quantity of computer applications is increasing dramatically as the computer industry prospers. Meanwhile, even for one application, it has different requirements of performance and power in different scenarios. Although various processors with different architectures emerge to fit for the various applications in different scenarios, it is impossible to design a dedicated processor to meet all the requirements. Furthermore, dealing with uncertain processors significantly aggravates the burden of programmers and system integrators to achieve specific performance/power. In this paper, we propose elastic architecture (EA) to provide a uniform computing platform with high elasticity, i.e., the ratio of worst-case to best-case performance/power/performance-power trade-off, which can meet different requirements for different applications. It is achieved by dynamically adjusting architecture parameters (instruction set, branch predictor, data path, memory hierarchy, concurrency, status~zcontrol, and so on) on demand. The elasticity of our prototype implementation of EA, as Sim-EA, ranges from 3.31 to 14.34, with 5.41 in arithmetic average, for SPEC CPU2000 benchmark suites, which provides great flexibility to fulfill the different performance and power requirements in different scenarios. Moreover, Sim-EA can reduce the EDP (energy-delay product) for 31.14% in arithmetic average compared with a baseline fixed architecture. Besides, some subsequent experiments indicate a negative correlation between application intervals' lengths and their elasticities. 相似文献
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In this study, we analyze data from surveys conducted in 2006 and 2010, tracking changes in awareness, engagement and attitudes surrounding emerging digital cultural forms over this 5‐year period. Our analysis, based on results from thousands of adults around the globe, shows that not only have remixes, mashups and other forms of “configurable culture” become mainstream phenomena, but also that the attitudes surrounding their cultural legitimacy are shifting. While copyright industries still promote a binary theft/permission framework, many people acknowledge the validity of some appropriation, and are actively negotiating the law's limitations. Yet, those most engaged in challenging dominant copyright narratives and exploring these emergent forms are those who hold the reins of cultural power: the young, educated and wealthy. 相似文献
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数据管理系统逐渐成为冷连轧过程控制中的重要组成部分。介绍了一种基于组态软件的数据管理系统,重点介绍了过程数据的采集和存储,及其在冷连轧过程控制中的应用等。 相似文献
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针对目前微处理器面对通用性、高性能、功耗效率的矛盾,我们提出了可配置流处理器的解决方案。本文重点研究了可配置流处理器中核心级指令设计及相关的编译技术,其核心设计思想是根据应用的计算特征设计流处理器中的核心级指令集,从而降低指令集硬件资源的需求。 相似文献
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C64x+是德州仪器(TI)公司最新推出的高性能定点DSP内核,它在指令集体系结构和片内存储系统等方面有了很大的改进.TI最新的高性能DSP芯片及SOC平台都采用C64x+内核.研究C64x+DSP内核及其片内存储系统的特点,重点分析了指令集、软件流水机制和特权系统以及片内存储系统等方面的改进.最后用一些典型的应用程序测试了C64x+内核在代码大小和程序运行时间等方面的性能提升. 相似文献
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