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Empirical Study Of Load Distribution Strategies On Multicomputers
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Book Synopsis Empirical Study of Load Distribution Strategies on Multicomputers by : Bobby Achirul Awal Nazief
Download or read book Empirical Study of Load Distribution Strategies on Multicomputers written by Bobby Achirul Awal Nazief and published by . This book was released on 1991 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In particular, we study the interaction between task placement strategies and parallel programs under different hardware and machine architectures. We also study whether task migration strategies can improve the performance obtained by task placement strategies alone. Because the cost of task migration may potentially be more expensive than that of task placement, we also study the possibility of reducing the task migration overhead."
Download or read book Transputers '94 written by Monique Becker and published by IOS Press. This book was released on 1994 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research reports presented in this volume focus on the implications of the T9000 microprocessor, which offers new elements in transputing and parallel programming. Subjects discussed include genetic algorithms, image analysis, neural networks, robotics and parallel architectures.
Book Synopsis Automatic Data Distribution Strategies for Multicomputer Systems by : Alex Lik-Fai Cheung
Download or read book Automatic Data Distribution Strategies for Multicomputer Systems written by Alex Lik-Fai Cheung and published by . This book was released on 1993 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Load Distribution for Parallel Applications by : Georg Stellner
Download or read book Dynamic Load Distribution for Parallel Applications written by Georg Stellner and published by Springer-Verlag. This book was released on 2013-07-29 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Load Distribution on Point-to-point Multicomputer Networks by : Dirk C. Grunwald
Download or read book Dynamic Load Distribution on Point-to-point Multicomputer Networks written by Dirk C. Grunwald and published by . This book was released on 1991 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The strategies we examined use load or status information to select placement locations; this information is explicitly disseminated or is piggybacked on normal communication. We also found that extant point- to-point networks reduce the rate of information dissemination because transiting messages are ignored by intermediate nodes. From these studies, we have concluded that the relative performance of placement strategies depends on the structure of the task creation tree. For shallow process trees, desirable workload distribution strategies will place new processes globally, rather than locally, spreading processes rapidly."
Book Synopsis Scheduling Divisible Loads in Parallel and Distributed Systems by : Veeravalli Bharadwaj
Download or read book Scheduling Divisible Loads in Parallel and Distributed Systems written by Veeravalli Bharadwaj and published by John Wiley & Sons. This book was released on 1996-10-14 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an in-depth study concerning a claqss of problems in the general area of load sharing and balancing in parallel and distributed systems. The authors present the design and analysis of load distribution strategies for arbitrarily divisible loads in multiprocessor/multicomputer systems subjects to the system constraints in the form of communication delays. In particular, two system architecture-single-level tree or star network, and linear network-are thoroughly analyzed. The text studies two different cases, one of processors with front-ends and the other without. It concentrates on load distribution strategies and performance analysis, and does not cover issues related to implementation of these strategies on a specific system. The book collates research results developed mainly by two groups at the Indian Institute of Science and the State University of New York at Stony Brook. It also covers results by other researchers that have either appeared or are due to appear in computer science literature. The book also provides relevant but easily understandable numerical examples and figures to illustrate important concepts. It is the first book in this area and is intended to spur further research enabling these ideas to be applied to a more general class of loads. The new methodology introduced here allows a close examination of issues involving the integration of communication and computation. In fact, what is presented is a new "calculus" for load sharing problems.
Book Synopsis Implementation and Utilization of a Heterogeneous Multicomputer Cluster for the Study of Load Balancing Strategies by : Per H. Andersen
Download or read book Implementation and Utilization of a Heterogeneous Multicomputer Cluster for the Study of Load Balancing Strategies written by Per H. Andersen and published by . This book was released on 1997 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Load Distribution Strategies for Signature Search and Join Operation in Distributed Computing Systems by : Yuntai Kyong
Download or read book Analysis of Load Distribution Strategies for Signature Search and Join Operation in Distributed Computing Systems written by Yuntai Kyong and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the State of Illinois 1987 by :
Download or read book Publications of the State of Illinois 1987 written by and published by . This book was released on 1988 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Occupancy Based Randomized Load Balancing for Large Systems with General Distributions by : Thirupathaiah Vasantam
Download or read book On Occupancy Based Randomized Load Balancing for Large Systems with General Distributions written by Thirupathaiah Vasantam and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-server architectures are ubiquitous in today's information infrastructure whether for supporting cloud services, web servers, or for distributed storage. The performance of multi-server systems is highly dependent on the load distribution. This is affected by the use of load balancing strategies. Since both latency and blocking are important features, it is most reasonable to route an incoming job to a server that is lightly loaded. Hence a good load balancing policy should be dependent on the states of servers. Since obtaining information about the remaining workload of servers for every arrival is very hard, it is preferable to design load balancing policies that depend on occupancy or the number of progressing jobs of servers. Furthermore, if the system has a large number of servers, it is not practical to use the occupancy information of all the servers to dispatch or route an arrival due to high communication cost. In large-scale systems that have tens of thousands of servers, the policies which use the occupancy information of only a finite number of randomly selected servers to dispatch an arrival result in lower implementation cost than the policies which use the occupancy information of all the servers. Such policies are referred to as occupancy based randomized load balancing policies. Motivated by cloud computing systems and web-server farms, we study two types of models. In the first model, each server is an Erlang loss server, and this model is an abstraction of Infrastructure-as-a-Service (IaaS) clouds. The second model we consider is one with processor sharing servers that is an abstraction of web-server farms which serve requests in a round-robin manner with small time granularity. The performance criterion for web-servers is the response time or the latency for the request to be processed. In most prior works, the analysis of these models was restricted to the case of exponential job length distributions and in this dissertation we study the case of general job length distributions. To analyze the impact of a load balancing policy, we need to develop models for the system's dynamics. In this dissertation, we show that one can construct useful Markovian models. For occupancy based randomized routing policies, due to complex inter-dependencies between servers, an exact analysis is mostly intractable. However, we show that the multi-server systems that have an occupancy based randomized load balancing policy are examples of weakly interacting particle systems. In these systems, servers are interacting particles whose states lie in an uncountable state space. We develop a mean-field analysis to understand a server's behavior as the number of servers becomes large. We show that under certain assumptions, as the number of servers increases, the sequence of empirical measure-valued Markov processes which model the systems' dynamics converges to a deterministic measure-valued process referred to as the mean-field limit. We observe that the mean-field equations correspond to the dynamics of the distribution of a non-linear Markov process. A consequence of having the mean-field limit is that under minor and natural assumptions on the initial states of servers, any finite set of servers can be shown to be independent of each other as the number of servers goes to infinity. Furthermore, the mean-field limit approximates each server's distribution in the transient regime when the number of servers is large. A salient feature of loss and processor sharing systems in the setting where their time evolution can be modeled by reversible Markov processes is that their stationary occupancy distribution is insensitive to the type of job length distribution; it depends only on the average job length but not on the type of the distribution. This property does not hold when the number of servers is finite in our context due to lack of reversibility. We show however that the fixed-point of the mean-field is insensitive to the job length distributions for all occupancy based randomized load balancing policies when the fixed-point is unique for job lengths that have exponential distributions. We also provide some deeper insights into the relationship between the mean-field and the distributions of servers and the empirical measure in the stationary regime. Finally, we address the accuracy of mean-field approximations in the case of loss models. To do so we establish a functional central limit theorem under the assumption that the job lengths have exponential distributions. We show that a suitably scaled fluctuation of the stochastic empirical process around the mean-field converges to an Ornstein-Uhlenbeck process. Our analysis is also valid for the Halfin-Whitt regime in which servers are critically loaded. We then exploit the functional central limit theorem to quantify the error between the actual blocking probability of the system with a large number of servers and the blocking probability obtained from the fixed-point of the mean-field. In the Halfin-Whitt regime, the error is of the order inverse square root of the number of servers. On the other hand, for a light load regime, the error is smaller than the inverse square root of the number of servers.
Book Synopsis Publications of the State of Illinois by :
Download or read book Publications of the State of Illinois written by and published by . This book was released on 1993 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :University of Illinois at Urbana-Champaign. Engineering Documents Center Publisher : ISBN 13 : Total Pages :192 pages Book Rating :4.P/5 (24 download)
Book Synopsis Engineering Documents Center Index by : University of Illinois at Urbana-Champaign. Engineering Documents Center
Download or read book Engineering Documents Center Index written by University of Illinois at Urbana-Champaign. Engineering Documents Center and published by . This book was released on 1991 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Disk I/O in High-performance Computing Systems by : David Wayne Jensen
Download or read book Disk I/O in High-performance Computing Systems written by David Wayne Jensen and published by . This book was released on 1993 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Load Balancing Across Near-homogeneous Multi-resource Servers by : William Leinberger
Download or read book Load Balancing Across Near-homogeneous Multi-resource Servers written by William Leinberger and published by . This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :University of Illinois at Urbana-Champaign. Office of Engineering Publications Publisher : ISBN 13 : Total Pages :408 pages Book Rating :4.:/5 (31 download)
Book Synopsis The Summary of Engineering Research by : University of Illinois at Urbana-Champaign. Office of Engineering Publications
Download or read book The Summary of Engineering Research written by University of Illinois at Urbana-Champaign. Office of Engineering Publications and published by . This book was released on 1992 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Circuit Switched Multicomputers and Heuristic Load Placement by : Dirk C. Grunwald
Download or read book Circuit Switched Multicomputers and Heuristic Load Placement written by Dirk C. Grunwald and published by . This book was released on 1990 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: