Download or read book Realistic Analysis of Parallel Dynamic Programming Algorithms written by University of Wisconsin--Madison. Computer Sciences Dept and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The algorithms we consider are a pipeline algorithm, where each processor i computes in order the entries of rows i, i + p and so on, where p is the number of processors; and a diagonal algorithm, where entries along each diagonal extending from the left to the top of the table are computed in turn. It is likely that the techniques used here can be used in the analysis of other algorithms that use barriers or pipelining techniques."
Download or read book Introduction to Parallel Computing written by Vipin Kumar and published by Addison Wesley Longman. This book was released on 1994 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematics of Computing -- Parallelism.
Download or read book Parallel Algorithms written by M H Alsuwaiyel and published by World Scientific. This book was released on 2022-05-30 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to the field of parallel algorithms and the underpinning techniques to realize the parallelization. The emphasis is on designing algorithms within the timeless and abstracted context of a high-level programming language. The focus of the presentation is on practical applications of the algorithm design using different models of parallel computation. Each model is illustrated by providing an adequate number of algorithms to solve some problems that quite often arise in many applications in science and engineering.The book is largely self-contained, presuming no special knowledge of parallel computers or particular mathematics. In addition, the solutions to all exercises are included at the end of each chapter.The book is intended as a text in the field of the design and analysis of parallel algorithms. It includes adequate material for a course in parallel algorithms at both undergraduate and graduate levels.
Download or read book Asynchronous Analysis of Parallel Dynamic Programming Algorithms written by University of Wisconsin--Madison. Computer Sciences Dept and published by . This book was released on 1994 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "We examine a very simple asynchronous model of parallel computation that assumes the time to compute a task is random, following some probability distribution. The goal of this model is to capture the effects of unpredictable delays on processors, due to communication delays or cache misses, for example. Using techniques from queueing theory and occupancy problems, we use this model to analyze two parallel dynamic programming algorithms. We show that this model is both simple to analyze and accurately predicts which algorithm will perform better in practice. The algorithms we consider are a pipeline algorithm, where each processor i computes in order the entries of rows, i, i+p and so on, where p is the number of processors; and a diagonal algorithm, where entries along each diagonal extending from the left to the top of the table are computed in turn. It is likely that the techniques used here can be useful in the analysis of other algorithms that use barriers or pipelining techniques."
Download or read book The Design and Analysis of Parallel Algorithms written by Selim G. Akl and published by . This book was released on 1989 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematics of Computing -- Parallelism.
Download or read book Parallel Dynamic Programming Algorithms written by M. Veldhorst and published by . This book was released on 1985 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Performance Computing HiPC 99 written by Prith Banerjee and published by Springer. This book was released on 2004-06-01 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: These are the proceedings of the Sixth International Conference on High Performance Computing (HiPC’99) held December 17-20 in Calcutta, India. The meeting serves as a forum for presenting current work by researchers from around the world as well as highlighting activities in Asia in the high performance computing area. The meeting emphasizes both the design and the analysis of high performance computing systems and their scientific, engineering, and commercial applications. Topics covered in the meeting series include: Parallel Algorithms Scientific Computation Parallel Architectures Visualization Parallel Languages & Compilers Network and Cluster Based Computing Distributed Systems Signal & Image Processing Systems Programming Environments Supercomputing Applications Memory Systems Internet and WWW-based Computing Multimedia and High Speed Networks Scalable Servers We would like to thank Alfred Hofmann and Ruth Abraham of Springer-Verlag for their excellent support in bringing out the proceedings. The detailed messages from the steering committee chair, general co-chair and program chair pay tribute to numerous volunteers who helped us in organizing the meeting. October 1999 Viktor K. Prasanna Bhabani Sinha Prithviraj Banerjee Message from the Steering Chair It is my pleasure to welcome you to the Sixth International Conference on High Performance Computing. I hope you enjoy the meeting, the rich cultural heritage of Calcutta, as well as the mother Ganges, “the river of life”.
Download or read book Analyzing the Behavior and Performance of Parallel Programs written by Vikram S. Adve and published by . This book was released on 1993 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parallel Computing written by Roman Trobec and published by Springer Science & Business Media. This book was released on 2009-06-18 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of parallel programming and architectures is essential for simulating and solving problems in modern computational practice. There has been rapid progress in microprocessor architecture, interconnection technology and software devel- ment, which are in?uencing directly the rapid growth of parallel and distributed computing. However, in order to make these bene?ts usable in practice, this dev- opment must be accompanied by progress in the design, analysis and application aspects of parallel algorithms. In particular, new approaches from parallel num- ics are important for solving complex computational problems on parallel and/or distributed systems. The contributions to this book are focused on topics most concerned in the trends of today’s parallel computing. These range from parallel algorithmics, progr- ming, tools, network computing to future parallel computing. Particular attention is paid to parallel numerics: linear algebra, differential equations, numerical integ- tion, number theory and their applications in computer simulations, which together form the kernel of the monograph. We expect that the book will be of interest to scientists working on parallel computing, doctoral students, teachers, engineers and mathematicians dealing with numerical applications and computer simulations of natural phenomena.
Download or read book Parallel Processing for Scientific Computing written by Michael A. Heroux and published by SIAM. This book was released on 2006-01-01 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parallel processing has been an enabling technology in scientific computing for more than 20 years. This book is the first in-depth discussion of parallel computing in 10 years; it reflects the mix of topics that mathematicians, computer scientists, and computational scientists focus on to make parallel processing effective for scientific problems. Presently, the impact of parallel processing on scientific computing varies greatly across disciplines, but it plays a vital role in most problem domains and is absolutely essential in many of them. Parallel Processing for Scientific Computing is divided into four parts: The first concerns performance modeling, analysis, and optimization; the second focuses on parallel algorithms and software for an array of problems common to many modeling and simulation applications; the third emphasizes tools and environments that can ease and enhance the process of application development; and the fourth provides a sampling of applications that require parallel computing for scaling to solve larger and realistic models that can advance science and engineering.
Download or read book Computer Sciences Technical Report written by and published by . This book was released on 1994 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Practical Parallel Programming written by Barr E. Bauer and published by Academic Press. This book was released on 2014-06-28 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the book that will teach programmers to write faster, more efficient code for parallel processors. The reader is introduced to a vast array of procedures and paradigms on which actual coding may be based. Examples and real-life simulations using these devices are presented in C and FORTRAN.
Download or read book Parallel Computing written by D.J Evans and published by CRC Press. This book was released on 2020-11-25 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parallel Computing: Methods, Algorithms and Applications presents a collection of original papers presented at the international meeting on parallel processing, methods, algorithms, and applications at Verona, Italy in September 1989.
Download or read book Parallel and Distributed Computation Numerical Methods written by Dimitri Bertsekas and published by Athena Scientific. This book was released on 2015-03-01 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly acclaimed work, first published by Prentice Hall in 1989, is a comprehensive and theoretically sound treatment of parallel and distributed numerical methods. It focuses on algorithms that are naturally suited for massive parallelization, and it explores the fundamental convergence, rate of convergence, communication, and synchronization issues associated with such algorithms. This is an extensive book, which aside from its focus on parallel and distributed algorithms, contains a wealth of material on a broad variety of computation and optimization topics. It is an excellent supplement to several of our other books, including Convex Optimization Algorithms (Athena Scientific, 2015), Nonlinear Programming (Athena Scientific, 1999), Dynamic Programming and Optimal Control (Athena Scientific, 2012), Neuro-Dynamic Programming (Athena Scientific, 1996), and Network Optimization (Athena Scientific, 1998). The on-line edition of the book contains a 95-page solutions manual.
Download or read book Analysis and Design of Algorithms for Combinatorial Problems written by G. Ausiello and published by Elsevier. This book was released on 1985-05-01 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combinatorial problems have been from the very beginning part of the history of mathematics. By the Sixties, the main classes of combinatorial problems had been defined. During that decade, a great number of research contributions in graph theory had been produced, which laid the foundations for most of the research in graph optimization in the following years. During the Seventies, a large number of special purpose models were developed. The impressive growth of this field since has been strongly determined by the demand of applications and influenced by the technological increases in computing power and the availability of data and software. The availability of such basic tools has led to the feasibility of the exact or well approximate solution of large scale realistic combinatorial optimization problems and has created a number of new combinatorial problems.
Download or read book Parallel Algorithms for Medical Informatics on Data Parallel Many Core Processors written by Maryam Moazeni and published by . This book was released on 2013 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extensive use of medical monitoring devices has resulted in the generation of tremendous amounts of data. Storage, retrieval, and analysis of such data require platforms that can scale with data growth and adapt to the various behavior of the analysis and processing algorithms. In recent years, many-core processors and more specifically many-core Graphical Processing Units (GPUs) have become one of the most promising platforms for high performance processing of data, due to the massive parallel processing power they offer. However, many of the algorithms and data structures used in medical and bioinformatics systems do not follow a data-parallel programming paradigm, and hence cannot fully benefit from the parallel processing power of data-parallel many-core architectures. In this dissertation, we present three techniques to adapt several non-data parallel applications in different dwarfs to modern many-core GPUs. First, we present a load balancing technique to maximize parallelism in non-serial polyadic Dynamic Programming (DP), which is a family of dynamic programming algorithms with more non-uniform data access pattern. We show that a bottom-up approach to solving the DP problem exploits more parallelism and therefore yields higher performance. We achieve 228X speedup over an equivalent CPU implementation. Second, we introduce a parallel hash table as a parallel-friendly lock-free dynamic hash table. The parallel hash table structure reduces the contention on the shared objects in lock-free hash table and achieves significant throughput on many-core processor architectures. To reduce the contention, it creates multiple instances of a hash table and uses a table assignment function to distribute hash table operations to different hash table instances and guarantees key uniqueness. We achieved roughly 27X speedup over counter-part multi-thread lock-free hash table on CPU. Third, we present a memory optimization technique for the software-managed scratchpad memory based on G80, GT200, and Fermi architectures to alleviate the constraints of using scratchpad memory. We propose a memory optimization scheme that minimizes the usage of memory space by discovering the chances of memory reuse with the goal of maximizing application performance. Our solution is based on graph coloring. Our evaluations show that using this technique can reduce the execution time of applications on GPUs by up to 22% over the non-optimized GPU implementation. In addition, by leveraging massive parallelism of GPUs, we introduce a novel time-series searching technique for multi-dimensional time series. Searching for time series is an intuitive and practical approach to study similarity of patterns, events, and activities in patient histories. However, its computational intensity has traditionally been a constraint in the development of a complex algorithm that can handle patterns in multi-dimensional signals considering noise, scaling, and time correlation between dimensions. Using GPUs, we are able to achieve high speed up in processing signals, while improving the quality of the search algorithm and tackle problems such as noise and scaling. We used data collected from two medical monitoring devices, a Personal Activity Monitor (PAM) and Medical Shoe to evaluate our approach and show that our technique results in up to 25X speed up and up to 15 point improvement in Normalized Discounted Cumulative Gain (NDCG) for such application.
Download or read book Parallel Algorithms written by Henri Casanova and published by CRC Press. This book was released on 2008-07-17 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on algorithms for distributed-memory parallel architectures, Parallel Algorithms presents a rigorous yet accessible treatment of theoretical models of parallel computation, parallel algorithm design for homogeneous and heterogeneous platforms, complexity and performance analysis, and essential notions of scheduling. The book extract
