检索结果-内蒙古大学图书馆

Proceedings of the 1996 5th IEEE international symposium on High Performance distributed computing

作者： Lu, Eric Jui-Lin Okunbor, Daniel I. Univ of Missouri - Rolla Rolla United States

the simulation of many-body, many-particle system has a wide range of applications in areas such as biophysics, chemistry, astrophysics, etc. It is known that the force calculation contributes ninety percent of the simulation time. this is mainly due to the fact that the total number of interactions in the force is O(N2) where N is the number of particles in the system. the fast multipole algorithm, proposed by Greengard and Rokhlin, reduces the time complexity to O(N). In this paper, we design an efficient parallel fast multipole algorithm in three dimensions. For portability, our parallel program is implemented using Message Passing Interface. Is it possible to obtain high performance for a computing intensive application out of a LAN of workstations? In this paper, we also attempted to answer this commonly asked question by those researchers who have no access to parallel computers or supercomputers.

关键词： parallel algorithms

来源：评论

学校读者我要写书评

暂无评论

Grid-based virtual laboratory experiments for a graduate course on sensor networks

引用

IEEE TRANSACTIONS ON EDUCATION 2007年第1期50卷 17-26页

作者： Christou, Ioannis T. Efremidis, Sofoklis Tiropanis, thanassis Kalis, Antonis Athens Informat Technol Paiania 19002 Greece

this paper presents the pedagogical and technical challenges the authors faced in developing a distributed laboratory for the-execution of virtual scientific experiments (VSEs) superimposed on a Grid infrastructure, for a course on sensor networks that is part of the Master's in Information Networking (MSIN) program jointly offered by Carnegie Mellon University (CMU), USA and Athens Information Technology (AIT), Athens, Greece. the MSIN program utilizes virtual classroom technologies because of its strong distance learning component. Courses taught by CMU faculty are attended in real-time by students in Athens, Greece, via video-wall teleconferencing sessions. Vice versa, visiting CMU faculty to AIT teach classes that are attended by students at CMU. Students in both institutions enjoy full interactivity with their classmates on the other side of the Atlantic Ocean. A distributed shared virtual laboratory is needed for, many of the more empirical courses. this paper describes the challenges and issues the authors faced in developing such a lab.

关键词： discrete-event simulation distributed computing learning systems

来源：评论

学校读者我要写书评

暂无评论

A resource discovery and allocation mechanism in large computational grids for media applications

A resource discovery and allocation mechanism in large compu...

引用

5th international symposium on parallel and distributed Processing and Applications/ISPA 2007 international Workshops

作者： Lin, Chun-Fu Chang, Ruay-Shiung Hwa Univ Dept Comp Sci & Informat Engn Natl Dong Hualien Taiwan

ISBN: (纸本)9783540747666

there has been significant effort to build high throughput computing systems out of many distributed multimedia servers. these systems should accommodate a larger number of servers and should handle the ever-growing user demands. Recently, Grid computing has become one of the promising technologies that can deliver such a system. Among the many problems encountered in building Grid computing systems, resource discovery, overhead reduction, workload balancing and fault tolerance are the most challenging. In this paper, we present a resource discovery and allocation mechanism (RDAM) in a computational Grid system.

关键词： Grid computing

来源：评论

学校读者我要写书评

暂无评论

IFIN - ITIM distributed GRID system

IFIN - ITIM distributed GRID system

引用

5th international symposium on parallel and distributed computing, ISPDC 2006

作者： Alexa, C. Boldea, V. Ciubancan, M. Constantinescu, Ş. DiţǍ, S. Pantea, D. Preda, T. Jalobeanu, M. Popeneciu, G. IFIN-HH Bucharest Romania INTIM Cluj-Napoca Romania

ISBN: (纸本)0769526381

GRID technology is able to connect an unlimited number of computer systems and to distribute the tasks among all the connected nodes. In this paper we present the extension of IFIN-HH ATLAS-GRID facilities with ITIM Cluj-Napoca computing power, building a distributed GRID system. Also shown are the functionality tests as a single grid configuration. Since March 30 the ITIM Cluj-Napoca site is configured and connected to IFIN-HH ATLAS-GRID, through RoEduNet. Supported by the Romanian R&D Agency through CEEX program, this project combines particle physics phenomenology and GRID technologies for distributed computing and analysis. © 2006 IEEE.

关键词： Grid computing

来源：评论

学校读者我要写书评

暂无评论

Locating and computing in parallel all the simple roots of special functions using PVM

引用

JOURNAL OF COMPUTATIONAL AND APPLIED MAthEMATICS 2001年第1-2期133卷 545-554页

作者： Plagianakos, VP Nousis, NK Vrahatis, MN Univ Patras Dept Math UPAIRC GR-26500 Patras Greece

An algorithm is proposed for locating and computing in parallel and with certainty all the simple roots of any twice continuously differentiable function in any specific interval. To compute with certainty all the roots, the proposed method is heavily based on the knowledge of the total number of roots within the given interval. To obtain this information we use results from topological degree theory and, in particular, the Kronecker-Picard approach. this theory gives a formula for the computation of the total number of roots of a system of equations within a given region, which can be computed in parallel, With this tool in hand, we construct a parallel procedure for the localization and isolation of all the roots by dividing the given region successively and applying the above formula to these subregions until the final domains contain at the most one root. the subregions with no roots are discarded, while for the rest a modification of the well-known bisection method is employed for the computation of the contained root. the new aspect of the present contribution is that the computation of the total number of zeros using the Kronecker-Picard integral as well as the localization and computation of all the roots is performed in parallel using the parallel virtual machine (PVM). PVM is an integrated set of software tools and libraries that emulates a general-purpose, flexible, heterogeneous concurrent computing framework on interconnected computers of varied architectures. the proposed algorithm has large granularity and low synchronization, and is robust. It has been implemented and tested and our experience is that it can massively compute with certainty all the roots in a certain interval. Performance information from massive computations related to a recently proposed conjecture due to Elbert (this issue, J. Comput. Appl. Math. 133 (2001) 65-83) is reported. (C) 2001 Elsevier Science B.V. All rights reserved.

关键词： Elbert's conjecture special functions Bessel functions computation of special functions construction of tables of special functions parallel and distributed algorithms parallel virtual machine zero isolation Kronecker-Picard theory topological degree theory computing simple roots bisection method

来源：评论

学校读者我要写书评

暂无评论

MojaveFS: Providing sequential consistency in a distributed objects system

MojaveFS: Providing sequential consistency in a distributed ...

引用

5th international symposium on parallel and distributed computing, ISPDC 2006

作者： ŢǍpuş, Cristian Noblet, David Gramai, Vlad Hickey, Jason Computer Science Department California Institute of Technology Computer Science Department Politehnica University of Bucharest

ISBN: (纸本)0769526381

this paper presents MojaveFS, a distributed file system with support for sequential consistency. It provides location transparency and makes use of replication for reliability and fault tolerance. We employ a hybrid hash-based and tree-based lookup mechanism for files that, combined with an efficient caching scheme, provides fast access to files in the system. MojaveFS uses a novel data storage strategy where files are split into smaller objects to increase data availability. It also uses a group communication protocol with guarantees for a total order on messages sent within the system, enabling MojaveFS to support the traditional sequential consistency model for concurrent access. © 2006 IEEE.

关键词： distributed computer systems

来源：评论

学校读者我要写书评

暂无评论

parallel computing of Electromagnetic Field Based on Domain Decomposition Method 5

Parallel Computing of Electromagnetic Field Based on Domain ...

引用

5th international Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

作者： Li, Tianwei Wu, Tian CSG Elect Power Res Inst Guangzhou Guangdong Peoples R China China Elect Power Res Inst Wuhan Peoples R China

ISBN: (纸本)9781467371063

the computing velocity and memory storage of Single PC are often limited in large-scale electromagnetic simulation by finite element method (FEM), parallel processing is an important means to overcome such problems. the domain decomposition method (DDM) which decomposes the domain by nodes dominating and suits for parallel computing was illustrated first in this paper;A 2D electrostatic model was built and decomposed by the DDM;And the FEM linear system of equations was solved by using parallel CG method on the distributed parallel system composed of 6 PCs, the effective speed up reaching 97.5% was satisfying. Especially for large-scale simulation which consists of more than millions of freedoms, the parallel processing reduces computing time and increases the computing velocity greatly, it's the base on which large-scale 3D electromagnetic parallel computing.

关键词： parallel computing Electromagnetic Field Domain Decomposition Method FEM effective speed

来源：评论

学校读者我要写书评

暂无评论

parallel implementation in PC clusters of a lanczos-based algorithm for an electromagnetic eigenvalue problem

Parallel implementation in PC clusters of a lanczos-based al...

引用

5th international symposium on parallel and distributed computing, ISPDC 2006

作者： Bernabeu, Miguel Óscar Taroncher, Máriam García, Víctor M. Vidal, Ana Dpt. de Sistemas Informáticos y Computación Universidad Politécnica de Valencia Camino de Vera s/n 46022 Valencia Spain Dpt. de Comunicaciones Universidad Politécnica de Valencia Camino de Vera s/n 46022 Valencia Spain

ISBN: (纸本)0769526381

this paper describes a parallel implementation of a Lanczos-based method to solve generalised eigenvalue problems related to the modal computation of arbitrarily shaped waveguides. this efficient implementation is intended for execution in moderate-low cost workstations (2 to 4 processors). the problem under study has several features: the involved matrices are sparse with a certain structure, and all the eigenvalues needed are contained in a given interval. the novel parallel algorithms proposed show excellent speed-up for small number of processors. © 2006 IEEE.

关键词： parallel algorithms

来源：评论

学校读者我要写书评

暂无评论

Efficient clustered adaptive-risk technique for distributed simulation

Efficient clustered adaptive-risk technique for distributed ...

引用

Proceedings of the 1996 5th IEEE international symposium on High Performance distributed computing

作者： Soliman, Hussam M. Elmaghraby, Adel S. King Saud Univ Riyadh Saudi Arabia

An efficient adaptive approach for parallel and distributed Simulation (PADS) is formalized and implemented. the Aggressive Adaptive-Risk (AAR) approach aims at reducing cascading rollbacks in large and complex simulations by clustering optimistic logical processes on each processor, and providing these processes the ability to adjust their degree of risk, at run time, to a good operating point based on observed behavior. the AAR approach is used to develop the Clustered Adaptive distributed Simulator (CADS) which is implemented on a network of workstations. Details of the CADS implementation are described. Performance results for large synthetic loads are reported and compared to those obtained for the Time Warp optimistic technique.

关键词： Computer simulation

来源：评论

学校读者我要写书评

暂无评论

distributed On-Demand Deployment for Transparent Access to 5G Edge computing Services

Distributed On-Demand Deployment for Transparent Access to 5...

引用

37th IEEE international parallel and distributed Processing symposium (IPDPS)

作者： Hammer, Josef Hellwagner, Hermann Alpen Adria Univ Klagenfurt Inst Informat Technol Klagenfurt Austria

ISBN: (纸本)9798350311990

Multi-access Edge computing (MEC) is a central piece of 5G telecommunication systems and is essential to satisfy the challenging low-latency demands of future applications. MEC provides a cloud computing platform at the edge of the radio access network. Our previous publications argue that edge computing should be transparent to clients, leveraging Software-Defined Networking (SDN). While we introduced a solution to implement such a transparent approach, one question remained: How to handle user requests to a service that is not yet running in a nearby edge cluster? One advantage of the transparent edge is that one could process the initial request in the cloud. However, this paper argues that on-demand deployment might be fast enough for many services, even for the first request. We present an SDN controller that automatically deploys an application container in a nearby edge cluster if no instance is running yet. In the meantime, the user's request is forwarded to another (nearby) edge cluster or kept waiting to be forwarded immediately to the newly instantiated instance. Our performance evaluations on a real edge/fog testbed show that the waiting time for the initial request - e.g., for an nginx-based service - can be as low as 0.5 seconds - satisfactory for many applications.

关键词： Multi-Access Edge computing MEC Fog computing Software-Defined Networking SDN Serverless computing Container Docker Kubernetes

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：