نتایج جستجو برای: floorplanning

تعداد نتایج: 243  

2000
Frank Wolz Reiner Kolla

In this paper, we show a new approach for solving discrete floorplanning problems. Modules to be placed and the target architecture are modelled by periodic graphs. The objective is, to find a valid assignment of module nodes to slot nodes of the target architecture, such that a cost function on the placement will be minimized. We use an algorithm which is abstracted and derived from a traditio...

2007

In nano-based microarchitectural design, achieving higher clock frequency is confronted with thermal restrictions especially with the presense of temperature-variant leakage power. While a module temperature depends both on power density and the thermal coupling with the neighboring blocks, thermal-aware floorplans have been introduced to reduce peak temperature. The major drawback is that the ...

Journal: :J. Low Power Electronics 2007
Yongkui Han Israel Koren

Power density of microprocessors is increasing with every new process generation resulting in higher maximum chip temperatures. The high temperature of the chip greatly affects its reliability, raises the leakage power consumed to unprecedented levels, and makes cooling solutions significantly more expensive. The maximum temperature of a block in a chip depends not only on its own power density...

Journal: :IEEE Trans. VLSI Syst. 2002
Stelian Alupoaei Srinivas Katkoori

We propose a net-based hierarchical macrocell placement such that “net placement” dictates the cell placement. The proposed approach has four phases. 1) Net clustering and net-level floorplanning phase: A weighted net dependency graph is built from the input register-transfer-level netlist. Clusters of nets are then formed by clique partitioning and a net-cluster level floorplan is obtained by ...

2002
Nicholas Chia-Yuan Chang Yao-Wen Chang Iris Hui-Ru Jiang

Abstract As the process technology advances into the deep submicron era, interconnect plays a dominant role in determining circuit performance. Buffer insertion/sizing and wire sizing are the most effective and popular techniques to reduce interconnect delay and are traditionally applied to post-layout optimization. As the SIA technology roadmap predicts, however, the number of interconnections...

Journal: :International Journal of Advanced and Applied Sciences 2023

This research paper investigates the influence of different initial design techniques on area, timing, and power aspects technology-mapped designs. As a practical case study, we undertake analysis 32-bit arithmetic logic unit (ALU) utilizing two distinct adder approaches. The ALU, fundamental component all processors, comprises three major units: Adder responsible for signed unsigned number add...

2005
Hsin-Hsien Ho Chang-Tzu Lin De-Sheng Chen Yi-Wen Wang Feng Chia

With the continued improvement of the nanometer IC technologies, large-scale mixed-size placement becomes a vital problem where there is a significant size variation between building modules and standard cells. Floorplanning techniques are very suitable to pack modules, but do not scale to hundreds of thousands of objects. Multilevel partitioning algorithms rapidly divide the large scale object...

Journal: :IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 2013

2002
Xiaoping Tang Anthony P. Ambler Chris Chong-Nuen Chu Stephen W. Keckler Patrick J. McGuinness Aloysius K. Mok Muzhou Shao Xia Chen Yongseok Cheon Seokjin Lee Gang Xu Ronggang Yu Lei Gao Ruiqi Hu Raymond K. Lau Chen Li Wei Li Xiaozhou Li Gang Liu Hanbing Liu I-Min Liu Jia Liu Wing-Chi Poon Wei Shen Weirong Wang Fei Xie

He brought me into the field of VLSI CAD. His encouragement and guidance has been a tremendous help throughout my PhD study. The fruitful discussions with him have bloomed many unexpected and stimulating thoughts. Also the criticism from him has led to a higher quality of research work. discussion. Special thanks are due to Ruiqi Tian and Hua Xiang, who help me a lot in completing this disserta...

2012
Rung-Bin Lin Meng-Chiou Wu Shih-Cheng Tsai

As semiconductor process technology relentlessly advances into deeper submicron feature sizes following the Moore’s Law, the cost of mask tooling is growing inexorably, up to 1, 1.5, and 3 million dollars for 90nm, 65nm, and 32nm process technology, respectively (LaPedus, 2006). Basically, the majority of smaller fabless integrated circuit (IC) design houses can hardly afford to have one mask s...

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