Standard cell placement algorithms have been at the forefront of academic research concerning the physical design stages of VLSI design flows. The penultimate step of a standard cell placement procedure is legalizatio...Standard cell placement algorithms have been at the forefront of academic research concerning the physical design stages of VLSI design flows. The penultimate step of a standard cell placement procedure is legalization. In this step the manufacturability of the design is directly settled, and the quality of the solution, in terms of wirelength, congestion, timing and power consumption is indirectly defined. Since the heavy lifting regarding processing is performed by global placers, fast legalization solutions are protruded in state-of-the-art design flows. In this paper we propose and evaluate a legalization scheme that surpasses in execution speed two of the most widely used legalizers, without not only corrupting the quality of the final solution in terms of interconnection wirelength but improving it in the process.展开更多
This paper, first, presents the main points of national policies and regulations, and a series of technical standards concerning legal metrological units, and bries the importance and urgency of using legal metrologic...This paper, first, presents the main points of national policies and regulations, and a series of technical standards concerning legal metrological units, and bries the importance and urgency of using legal metrological unit in the seismological system. Secondly, it examined the present situation in using legal metrological unit by checking six selected kinds of Seismological periodicals against national standard and provided in the form of tables typical error-correcting examples in using legal metrological unit for the responsibles (authors) and editorial departments.Finally,based on statistic, it analysed the causes for the existing problems and offered proposals for emphasizing the use of legal metrological units in the seismological system.展开更多
文摘Standard cell placement algorithms have been at the forefront of academic research concerning the physical design stages of VLSI design flows. The penultimate step of a standard cell placement procedure is legalization. In this step the manufacturability of the design is directly settled, and the quality of the solution, in terms of wirelength, congestion, timing and power consumption is indirectly defined. Since the heavy lifting regarding processing is performed by global placers, fast legalization solutions are protruded in state-of-the-art design flows. In this paper we propose and evaluate a legalization scheme that surpasses in execution speed two of the most widely used legalizers, without not only corrupting the quality of the final solution in terms of interconnection wirelength but improving it in the process.
基金the initial results of the general project of the National Social Science Foundation in 2016“A study on the Reconstruction of International Anti-tax avoidance rules of Cross-border intangible assets transfer pricing in the Digital economy”(16BFX 165A)the Youth Program of philosophy and Social Sciences of Anhui Province in 2014“Research on the Establishment and system Construction of the right of tax Supervision in China”(AHSKQ2014D01)
文摘This paper, first, presents the main points of national policies and regulations, and a series of technical standards concerning legal metrological units, and bries the importance and urgency of using legal metrological unit in the seismological system. Secondly, it examined the present situation in using legal metrological unit by checking six selected kinds of Seismological periodicals against national standard and provided in the form of tables typical error-correcting examples in using legal metrological unit for the responsibles (authors) and editorial departments.Finally,based on statistic, it analysed the causes for the existing problems and offered proposals for emphasizing the use of legal metrological units in the seismological system.
