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91.
片上多核Cache资源管理机制研究 总被引:2,自引:1,他引:1
随着片上多核成为处理器发展的主流和片上Cache资源的持续增长,Cache资源的管理已成为片上多核的关键问题。介绍了片上多核Cache资源管理的研究进展,依据研究内容将Cache资源的管理分为Cache划分和Cache共享两类。对Cache划分,探讨了其主要组成部分和一般形式,分析和比较了典型的片上多核Cache划分机制。对Cache共享,给出了其主要研究内容,并介绍和比较了几种主流的片上多核Cache共享机制。通过分析,认为软硬件协同管理的页划分应是未来片上多核Cache划分机制的研究重点;而片上多核Cache共享机制的研究则应从目标应用的Cache行为特征着手。 相似文献
92.
提出了采用性能价格比极高的 2 B ISDN网络 ,作为 CERNET的第二条网络直通 Internet,该方案采用主代理机和客户机共享的网络模式 ,在不改变原有网络结构的前提下 ,仅需增加一个 UTA和一条 ISDN电话线的硬投入 ,便可实现所有网上机器流畅地在 Chinanet和 Internet上“冲浪”、收发“伊妹儿”等 相似文献
93.
Ana Gàl 《Computational Complexity》2001,10(4):277-296
We give a characterization of span program size by a
combinatorial-algebraic measure. The measure we consider is a generalization
of a measure on covers which has been used to prove lower
bounds on formula size and has also been studied with respect to communication
complexity.?In the monotone case our new methods yield lower bounds for
the monotone span program complexity of explicit Boolean functions in
n variables over arbitrary fields, improving the previous lower bounds
on monotone span program size. Our characterization of span program
size implies that any matrix with superpolynomial separation between
its rank and cover number can be used to obtain superpolynomial lower
bounds on monotone span program size. We also identify a property
of bipartite graphs that is suficient for constructing Boolean functions
with large monotone span program complexity.
Received: September 30, 2000. 相似文献
94.
Microsoft NetMeeting的技术特点及其底层服务在远程医疗系统中的应用 总被引:1,自引:0,他引:1
本文详细介绍并分析了Microsoft NetMeeting的各种功能特点及实现策略,重点研究了NetMeeting提供的底层服务的技术特点及其应用潜力,在此基础上提出了一个基于NetMeeting底层服务的远程医疗管理系统的实现方案.并对方案中的技术实现进行了阐述, 相似文献
95.
The problem of channel sharing by rate adaptive streams belonging to various classes is considered. Rate adaptation provides
the opportunity for accepting more connections by adapting the bandwidth of connections that are already in the system. However,
bandwidth adaptation must be employed in a careful manner in order to ensure that (a) bandwidth is allocated to various classes
in a fair manner (system perspective) and (b) bandwidth adaptation does not affect adversely the perceived user quality of
the connection (user quality). The system perspective aspect has been studied earlier. This paper focuses on the equally important
user perspective. It is proposed to quantify user Quality of Service (QoS) through measures capturing short and long-term
bandwidth fluctuations that can be implemented with the mechanisms of traffic regulators, widely used in networking for the
purpose of controlling the traffic entering or exiting a network node. Furthermore, it is indicated how to integrate the user
perspective metrics with the optimal algorithms for system performance metrics developed earlier by the authors. Simulation
results illustrate the effectiveness of the proposed framework.
Nikos G. Argiriou received the Diploma degree in Electrical Engineering from the Department of Electrical Engineering, Telecommunication Division, Aristotle University of Thessaloniki, Greece, in 1996. He worked as a researcher, on secure medical image transmission over networks, at the Image Processing Lab at the same university during 1996–1997. During 1998–2000 he was a researcher for the European Project Esprit Catserver concerning the use of advanced Quality of Service techniques in CATV networks. He received his Ph.D. degree at Aristotle University of Thessaloniki in 2007. His current research interests are in the development and implementation of QoS techniques for wired and wireless networks. Leonidas Georgiadis received the Diploma degree in Electrical Engineering from Aristotle University, Thessaloniki, Greece, in 1979, and his M.S. and Ph.D degrees both in Electrical Engineering from the University of Connecticut, in 1981 and 1986, respectively. From 1986 to 1987 he was Research Assistant Professor at the University of Virginia, Charlottesville. In 1987 he joined IBM T. J. Watson Research Center, Yorktown Heights as a Research Staff Member. Since October 1995, he has been with the Telecommunications Department of Aristotle University, Thessaloniki, Greece. His interests are in the area of wireless networks, high speed networks, routing, scheduling, congestion control, modeling and performance analysis. 相似文献
Leonidas GeorgiadisEmail: |
Nikos G. Argiriou received the Diploma degree in Electrical Engineering from the Department of Electrical Engineering, Telecommunication Division, Aristotle University of Thessaloniki, Greece, in 1996. He worked as a researcher, on secure medical image transmission over networks, at the Image Processing Lab at the same university during 1996–1997. During 1998–2000 he was a researcher for the European Project Esprit Catserver concerning the use of advanced Quality of Service techniques in CATV networks. He received his Ph.D. degree at Aristotle University of Thessaloniki in 2007. His current research interests are in the development and implementation of QoS techniques for wired and wireless networks. Leonidas Georgiadis received the Diploma degree in Electrical Engineering from Aristotle University, Thessaloniki, Greece, in 1979, and his M.S. and Ph.D degrees both in Electrical Engineering from the University of Connecticut, in 1981 and 1986, respectively. From 1986 to 1987 he was Research Assistant Professor at the University of Virginia, Charlottesville. In 1987 he joined IBM T. J. Watson Research Center, Yorktown Heights as a Research Staff Member. Since October 1995, he has been with the Telecommunications Department of Aristotle University, Thessaloniki, Greece. His interests are in the area of wireless networks, high speed networks, routing, scheduling, congestion control, modeling and performance analysis. 相似文献
96.
Joseph A. Cazier Benjamin B. M. Shao Robert D. St. Louis 《Information Systems Frontiers》2007,9(5):515-529
This study explores how value congruence contributes to the formation of trust in e-businesses, and how trust and value congruence
influence consumers to share personal information. It is hypothesized that the perceived values of organizations regarding
moral, social, environmental and political causes can have an effect on the trusting beliefs of e-commerce consumers and their
willingness to disclose private personal information. A total of 775 subjects rated their perceived value congruence with
organizations, their trusting beliefs, and the types of information they would be willing to disclose. This study finds that
value congruence not only plays a role in mediating the trust of consumers for the organizations, but it also has a strong
effect on determining their willingness to disclose personal information. In some cases, the influence of value congruence
is greater than that of trust, even though trust has been touted in the literature as one of the most important factors in
e-commerce. This research expands prior work by using structural equation modeling to test the relative strength of the effect
of value congruence on each dimension of trust and the overall trust level, as well as its direct effect on behavioral intentions
in terms of information sharing for non-profit and for-profit organizations.
相似文献
Robert D. St. LouisEmail: |
97.
MAO Wei ZHENG Fengtian MAO Jia School of Agricultural Economics Rural Development College of Transportation Renmin University of China Jilin University Beijing China Changchun Jilin Province China 《International Journal of Industrial Ergonomics》2006,(1)
I. INTRODUCTION Along with the economical rapid development and the living standard unceasing enhancement, the consumer request to food quality in a new stair, food consumption pattern has assumed multiplex development tendency, food demand pattern transforms into "the multi- varieties, guarantees safety". Food no longer only is essential item which satisfies life needs; the consumer attention to food from the quantity moves towards the credit level, food security problem appears. How doe… 相似文献
98.
99.
The parallelism attained by the use of Field Programmable Gate Arrays (FPGAs) has shown remarkable potential for accelerating control systems applications. This comes at a time when well established methods based on inherited serial Central Processor Units (CPUs) cannot guarantee solutions for the increasing execution speed demands. However, the transition from serial to parallel architectures represents a tremendous challenge due to overwhelming numbers of unexplored options and conflicting factors. The work presented achieves a parallelisation characterisation for generic MIMO systems using stand-alone FPGA implementations. The main contribution is that a very fine subset of possible serial/parallel implementations is obtained. This is used to achieve a flexible trade-off between cost and performance. Automatic optimisation of latency, occupied FPGA area and execution speed is attained and justified in respect to most of the feasible scenarios. 相似文献
100.
Senior leadership has been identified as a critical factor in fostering Enterprise Resource Planning (ERP) systems success, however, the specific impact mechanism of transformational leadership on ERP success is still largely unknown. Based on organizational culture theory and knowledge based view, this study developed a theoretical model to explore the mediating effect of organizational culture and knowledge sharing on transformational leadership and ERP success. Data was collected from 115 IS executives and 413 ERP end users in 115 organizations in China. Partial Least Squares (PLS) analysis results suggest that transformational leadership is directly related with all the four types of organizational culture – development culture, group culture, hierarchical culture and rational culture, and is indirectly related with knowledge sharing and ERP success. Specifically, development culture has direct impact on ERP success, while hierarchical culture, group and rational culture are indirectly related with ERP success, mediated by explicit and tacit knowledge sharing. The research findings can provide guidelines for the top executives to facilitate appropriate organizational culture, so as to foster ERP knowledge sharing and achieve business benefits with the assimilation of ERP systems. 相似文献