Download or read book Efficient Algorithms for Cyclic Scheduling written by F. Gasperoni and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ef cient Algorithms for Cyclic Scheduling Classic Reprint written by Franco Gasperoni and published by Forgotten Books. This book was released on 2018-02-08 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Efficient Algorithms for Cyclic Scheduling As the previous reduction shows every polynomial time approximation algorithm for the cyclic scheduling problem can be used to approximate optimality in the acyclic case. The best such algorithm for the acyclic case guarantees a factor of (2 1 p) from p - optimality Given a cyclic task system L, the goal of this section will therefore be that of generating a periodic p-schedule a, admissible for L, such that -l--p is, in the worst case, as close as possible to (2 1 p). About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Efficient Algorithms for Cyclic Scheduling written by F. Gasperoni and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling and Performance Analysis of Cyclic Systems written by Wojciech Bożejko and published by Springer. This book was released on 2019-08-16 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Striking a balance between state-of-the-art research and practical applications, this book provides a forum for contributions that cover the main research challenges in the cyclic modeling, development, and validation of concurrently acting distributed production systems: systems that employ multi-assortment production in large quantities, are characterized by gradual changes in their product mix, and exclusively manufacture products in a cyclic manner. Similar issues also arise in computer systems, e.g., embedded systems. Cyclic optimization problems that occur in them are unique and under-researched, but are attracting new interest primarily due to their great practical importance and the difficulty involved in obtaining efficient algorithms for solving specific cases with real constraints arising from manufacturing practice. Addressing these and other topics, the book will be of great interest to researchers in computer science, operations management, and production control, as well as practicing managers and engineers.
Download or read book Introduction to Scheduling written by Yves Robert and published by CRC Press. This book was released on 2009-11-18 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full of practical examples, Introduction to Scheduling presents the basic concepts and methods, fundamental results, and recent developments of scheduling theory. With contributions from highly respected experts, it provides self-contained, easy-to-follow, yet rigorous presentations of the material.The book first classifies scheduling problems and
Download or read book Flow Shop Scheduling written by Hamilton Emmons and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using simplified notation and revealing unifying concepts, this book covers flow shop systems including two-machine, flexible and stochastic, and examines the reentrant flow shop, in which a job may be reprocessed at the same station or sequence of stations.
Download or read book Cyclic Scheduling with Spacing Constraints written by John Joseph Borsi and published by . This book was released on 1994 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied a vehicle routing and scheduling problem in which a cyclic schedule of airlift missions is required to provide evenly spaced customer service. This thesis presents results in two areas relating to our solution of this problem. First, we developed and tested a route-first/schedule-second heuristic. This approach is suitable for applications in which routing costs are the primary concern and the spacing requirement is not a hard constraint. The crucial element of this approach is the ability to schedule airlift missions so that the spacing requirement is satisfied. To accomplish this, we allow missions to be disrupted, either expediting or delaying mission stops compared to the standard time allowed for travel between consecutive mission stops. This scheduling problem is solved through a heuristic that requires the solution of a large number of assignment problems, which led to the second major area of our research. We then developed efficient algorithms for special cases of the assignment problem related to our scheduling problem. We determined that cost matrices defined by a convex function of linear displacement between sorted locations on a line have the Strong Monge Property. Based on this finding, we developed assignment algorithms with worst case time complexities comparable to sorting a list.
Download or read book Intelligent Manufacturing written by William A. Gruver and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent Manufacturing is part of the Advanced Manufacturing Series edited by Professor D.T. Pham of the University of Wales, College of Cardiff. This publication exposes the major issues associated with programming environments for manufacturing and illustrates specific software systems developed for industrial application. Clear and concise statements are made on the state-of-the-art and recent trends in manufacturing languages and programming environments. The book discusses the diverse approaches that are currently under consideration in North America and Europe. It gives the reader an understanding of how manufacturing languages can be used to integrate computer controlled machines and intelligent sensors in automated manufacturing systems including machine tools, robots, inspection and material handling equipment.
Download or read book WALCOM Algorithms and Computation written by Subir Kumar Ghosh and published by Springer. This book was released on 2013-01-23 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th International Workshop on Algorithms and Computation, WALCOM 2013, held in Kharagpur, India, in February 2013. The 29 full papers presented were carefully reviewed and selected from 86 submissions. The papers are organized in topical sections on computational geometry, approximation and randomized algorithms, parallel and distributed computing, graph algorithms, complexity and bounds, and graph drawing.
Download or read book Efficient Algorithms for Production Scheduling written by Pascal Wortel and published by Fraunhofer Verlag. This book was released on 2020-05-20 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scheduling problems play an important role in the area of production planning. However, due to e.g. uncertainties, real-world applications may induce additional constraints, and lead to intractable models. In the literature, approximated solutions are often computed. This thesis aims to derive exact yet tractable algorithms for different scheduling problems under robustness or inventory constraints. First, we consider the notoriously NP-hard Buffer Allocation Problem (BAP) in flow lines. In its classical approach, it assumes that the processing times of jobs are known in advance. Realistically, this is not the case. Therefore, we present a model for the BAP with additional robustness constraints. We compute exact solutions and demonstrate the tractability of our method. Next, we lay focus on inventory-constrained scheduling. In this setting, jobs are assumed to add or remove a given amount of material from a common stack. We identify a new class of such problems, where the objective function only depends on the consuming jobs. We provide complexity results and algorithms for variations of the problem with different objective functions and constraints.
Download or read book Efficient Algorithms for a Realistic Machine independent Model of Parallel Machines written by Abhijit Sahay and published by . This book was released on 1994 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Declarative Models of Concurrent Cyclic Processes written by Grzegorz Bocewicz and published by Springer Nature. This book was released on 2023-12-01 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents a new declarative approach dedicated to the analysis of behaviors and synthesis of structures of Systems of Cyclic Concurrent Multimodal Processes (SCCMP). These kinds of problems are some of the most difficult cyclic scheduling problems - both from the computational side and the complexity of the models used. SCCMP is understood as a set of processes (in particular, multimodal processes) that execute operations cyclically on a set of jointly used (shared) resources (processors, machines, means of transport, etc.). They model the functioning of numerous systems encountered in practical settings and which are characterized by cyclic (periodic) behavior. Typical examples are the passenger railway system, the manufacturing system, the transportation system, and etc. Considered problems, i.e., the behavior analysis problem, the structure prototyping problem, and the problem of mutual reachability of various SCCMP behaviors, are strongly NP-hard. This feature implies that computationally-efficient algorithms need to be sought. They would enable the evaluation of selected aspects of the considered system's functions, such as service costs, transport time, etc., in real-time mode. In that context, the presented monograph fills the gap in the field of SCCMP modeling. Its aim is to present declarative models of systems of cyclic multimodal processes. Such models allow the development of computationally-efficient methods of analysis of the behavior and synthesis of the structure of SCCMP. The particular issues raised in this study concern: · Modeling of SCCMP with regular/fractal structures, i.e., structures composed of repeating fragments. · Determining the conditions of mutual reachability of various SCCMP behaviors. · Modeling of SCCMP described by fuzzy variables. The monograph is addressed to researchers, practitioners, and graduate students in operations management, operations research, computer science, and industrial engineering. Declarative models of concurrent cyclic processes will serve as an essential reference for professionals working on cyclic scheduling problems in computer science, manufacturing, communication, and transportation services, as well as in many other areas.
Download or read book Efficient Algorithms for Average Completion Time Scheduling written by René Sitters and published by . This book was released on 2009 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Languages and Compilers for Parallel Computing written by Chua-Huang Huang and published by Springer Science & Business Media. This book was released on 1996-01-24 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the refereed proceedings of the Eighth Annual Workshop on Languages and Compilers for Parallel Computing, held in Columbus, Ohio in August 1995. The 38 full revised papers presented were carefully selected for inclusion in the proceedings and reflect the state of the art of research and advanced applications in parallel languages, restructuring compilers, and runtime systems. The papers are organized in sections on fine-grain parallelism, interprocedural analysis, program analysis, Fortran 90 and HPF, loop parallelization for HPF compilers, tools and libraries, loop-level optimization, automatic data distribution, compiler models, irregular computation, object-oriented and functional parallelism.
Download or read book The Compiler Design Handbook written by Y.N. Srikant and published by CRC Press. This book was released on 2002-09-25 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt: The widespread use of object-oriented languages and Internet security concerns are just the beginning. Add embedded systems, multiple memory banks, highly pipelined units operating in parallel, and a host of other advances and it becomes clear that current and future computer architectures pose immense challenges to compiler designers-challenges th
Download or read book Efficient Algorithms to Solve Scheduling Problems with a Variety of Optimization Criteria written by Hamed Fahimi and published by . This book was released on 2016 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constraint programming is a powerful methodology to solve large scale and practical scheduling problems. Resource-constrained scheduling deals with temporal allocation of a variety of tasks to a set of resources, where the tasks consume a certain amount of resource during their execution. Ordinarily, a desired objective function such as the total length of a feasible schedule, called the makespan, is optimized in scheduling problems. Solving the scheduling problem is equivalent to finding out when each task starts and which resource executes it. In general, the scheduling problems are NP-Hard. Consequently, there exists no known algorithm that can solve the problem by executing a polynomial number of instructions. Nonetheless, there exist specializations for scheduling problems that are not NP-Complete. Such problems can be solved in polynomial time using dedicated algorithms. We tackle such algorithms for scheduling problems in a variety of contexts. Filtering techniques are being developed and improved over the past years in constraint-based scheduling. The prominency of filtering algorithms lies on their power to shrink the search tree by excluding values from the domains which do not yield a feasible solution. We propose improvements and present faster filtering algorithms for classical scheduling problems. Furthermore, we establish the adaptions of filtering techniques to the case that the tasks can be delayed. We also consider distinct properties of industrial scheduling problems and solve more efficiently the scheduling problems whose optimization criteria is not necessarily the makespan. For instance, we present polynomial time algorithms for the case that the amount of available resources fluctuates over time, or when the cost of executing a task at time t is dependent on t.
Download or read book Algorithms and Architectures for Parallel Processing written by Sang-Soo Yeo and published by Springer Science & Business Media. This book was released on 2010-05-07 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 10th International Conference on Algorithms and Architectures for Parallel Processing, ICA3PP. The 47 papers were carefully selected from 157 submissions and focus on topics for researchers and industry practioners to exchange information regarding advancements in the state of art and practice of IT-driven services and applications, as well as to identify emerging research topics and define the future directions of parallel processing.
