Download or read book Adaptive Parallelism in Browsers written by Rohit Zambre and published by . This book was released on 2017 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mozilla Research is developing Servo, a parallel web browser engine, to exploit the benefits of parallelism and concurrency in the web rendering pipeline. Parallelization results in improved performance for pinterest.com but not for google.com. This is because the workload of a browser is dependent on the web page it is rendering. In many cases, the overhead of creating, deleting, and coordinating parallel work outweighs any of its benefits. In this work, I model the relationship between web page primitives and a web browser's parallel performance and energy usage using both regression and classification learning algorithms. I propose a feature space that is representative of the parallelism available in a web page and characterize it using seven key features. After training the models to minimize custom-defined loss functions, such a model can be used to predict the degree of parallelism available in a web page and decide the optimal thread configuration to use to render a web page. Such modeling is critical for improving the browser's performance and minimizing its energy usage. As a case study, I evaluate the models on Servo's styling stage. Experiments on a quad-core Intel Ivy Bridge (i7-3615QM) laptop show that we can improve performance and energy usage by up to 94.52% and 46.32% respectively on the 535 web pages considered in this study. Looking forward, we identify opportunities to tackle this problem with an online-learning approach to realize a practical and portable adaptive parallel browser on various performance- and energy-critical devices.

Download or read book The Implementation of Adaptive Parallelism in Parallel Programming Models written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Software Support for Adaptive Parallelism on Non dedicated Clusters of Workstations written by Etienne Godard and published by . This book was released on 2001 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Parallelism for Computing on Heterogeneous Clusters written by Kam Hong Shum and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Until recent years most parallel machines have been made up of closely-coupled microprocessor-based computers. With the advent of high-performance workstations and high-speed networking, the aggregate computational power and memory capacity of workstation clusters have become attractive and indispensable resources for parallel computing. Techniques to harness the power of workstation cluster computing, however, require the development of practical methods for controlling heterogeneous resources dynamically. This dissertation proposes an integrated framework that comprises two related parts. The first part of the framework is a software structure that enables parallel applications to be adaptable to workload imbalances at runtime. To realize the adaptation, applications are partitioned into small components called tasks. The tasks are then grouped into grains; each grain is an object that facilitates execution of tasks on a workstation. An application can therefore optimize its performance by the reconfiguration of task-to-grain and grain-to- workstation mappings. Based on the software structure, the implementation and evaluation of workload distribution schemes for data-parallel and task- parallel applications are presented. The second part of the framework is a resource management system that allocates resources to parallel applications through competition. The applications respond to allocation decisions by dynamic reconfiguration. The objectives of the system are to maximize the speedup of the parallel applications and, at the same time, to allocate workstations fairly and efficiently to the applications. A prototype implementation which provides a testbed for studying the dynamics of competition is constructed. In addition, a new structure for organizing replicated parallel applications is developed and an architecture for a multi-user, multi-parallel program environment based on the proposed framework is suggested. The effectiveness of the concept and the framework is demonstrated by the results of experiments conducted on the testbed. The parallel applications involved in the experiments consist of block-matrix multiplication, cycle-searching of a non-linear iterated cryptographic function, and simulators of an ATM network."

Download or read book Predictive Adaptive Parallelism written by David L. Wangerin and published by . This book was released on 2006 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parallel and Distributed Processing written by José D. P. Rolim and published by Springer Science & Business Media. This book was released on 1999-03-30 with total page 1474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of 11 IPPS/SPDP '98 Workshops held in conjunction with the 13th International Parallel Processing Symposium and the 10th Symposium on Parallel and Distributed Processing in San Juan, Puerto Rico, USA in April 1999. The 126 revised papers presented were carefully selected from a wealth of papers submitted. The papers are organised in topical sections on biologically inspired solutions to parallel processing problems: High-Level Parallel Programming Models and Supportive Environments; Biologically Inspired Solutions to Parallel Processing; Parallel and Distributed Real-Time Systems; Run-Time Systems for Parallel Programming; Reconfigurable Architectures; Java for Parallel and Distributed Computing; Optics and Computer Science; Solving Irregularly Structured Problems in Parallel; Personal Computer Based Workstation Networks; Formal Methods for Parallel Programming; Embedded HPC Systems and Applications.

Download or read book Adaptive Parallelism Mapping in Dynamic Environments Using Machine Learning written by Murali Krishna Emani and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Parallelism in Distributed Shared Memory Environments written by Alex Scherer and published by . This book was released on 2001 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications and Systems for Large Scale Adaptive Parallelism written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our research over the last year has focussed on building a Java-based Linda system as a basis for the wide-area adaptive parallelism (AP) system we anticipated in our original proposal. Java allows us to attack one of the biggest problems of AP in a WAN environment, heterogeneity; AP requires that an ongoing parallel computation be able to acquire (and drop) nodes dynamically, which requires in turn that the AP application be capable of running on any node in the pool. An application written in Java can be executed on any machine with a resident Java environment. The obvious main problem is performance; the performance of interpreted Java can't be expected to compete with the performance of compiled Fortran or C or C++. It seems clear, though, that Java's performance limitations will tend to disappear as dynamic and ordinary compilers become available. We anticipate that security also will be an important issue for AP (how do we protect resource donors from a rogue AP application-and AP applications from a rogue donor?); by working with Java, we can make use of an existing, decent security infrastructure, and future work that will go into improving the structure as weaknesses are identified and new threats are encountered. We have made considerable progress designing and implementing this Java-based system.

Download or read book Euro Par 2016 Parallel Processing written by Pierre-François Dutot and published by Springer. This book was released on 2016-08-10 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 22nd International Conference on Parallel and Distributed Computing, Euro-Par 2016, held in Grenoble, France, in August 2016. The 47 revised full papers presented together with 2 invited papers and one industrial paper were carefully reviewed and selected from 176 submissions. The papers are organized in 12 topical sections: Support Tools and Environments; Performance and Power Modeling, Prediction and Evaluation; Scheduling and Load Balancing; High Performance Architectures and Compilers; Parallel and Distributed Data Management and Analytics; Cluster and Cloud Computing; Distributed Systems and Algorithms; Parallel and Distributed Programming, Interfaces, Languages; Multicore and Manycore Parallelism; Theory and Algorithms for Parallel Computation and Networking; Parallel Numerical Methods and Applications; Accelerator Computing.

Download or read book Adaptive structured parallelism written by Horacio Gonzaĺez Vélez and published by . This book was released on 2008 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Runtime adaptive Generalized Task Parallelism written by Kevin Streit and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parallel and Distributed Processing written by and published by . This book was released on 1999 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Languages and Compilers for Parallel Computing written by Xiaoming Li and published by Springer Nature. This book was released on 2022-03-23 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 34th International Workshop on Languages and Compilers for Parallel Computing, LCPC 2020, held in Delaware, NE, USA, in October 2021. Due to COVID-19 pandemic the conference was held virtually. The 9 revised full papers were carefully reviewed and selected from 11 submissions. The conference covers all aspects of languages, compiler techniques, run-time environments, and compiler-related performance evaluation for parallel and high-performance computing. The scope of the workshop encompasses foundational results, as well as practical experience reports and bold new ideas for future systems.

Download or read book Massively Parallel Globalization written by David C. Earnest and published by State University of New York Press. This book was released on 2015-05-05 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this era of globalization, people organize into fluid, adaptive networks to solve complex problems and provide resources that nation-states cannot. Examples include the Grameen Bank, mHealth, and the Ushahidi open source software project. Why do these networks succeed where nation-states fail? Only recently have social scientists developed tools to understand exactly how these complex networks self-organize, emerge, adapt, and solve collective problems. Three of these tools—agent-based modeling, social network analysis, and evolutionary computing—are converging in a field known as computational social science. In this provocative book, David C. Earnest discusses how computational social science helps us understand "massively parallel globalization." Using "explorations" of global systems ranging from fisheries to banking, Earnest illustrates the promise of computer models for explaining the surprises, cascades, and complexity that characterize global politics today. These examples of massively parallel globalization contrast sharply with the hierarchical and inflexible governmental bureaucracies that are poorly suited to solve many of today's transnational and global challenges.

Download or read book Enterprise Level Security 2 written by Kevin E. Foltz and published by CRC Press. This book was released on 2020-09-11 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enterprise Level Security 2: Advanced Topics in an Uncertain World follows on from the authors’ first book on Enterprise Level Security (ELS), which covered the basic concepts of ELS and the discoveries made during the first eight years of its development. This book follows on from this to give a discussion of advanced topics and solutions, derived from 16 years of research, pilots, and operational trials in putting an enterprise system together. The chapters cover specific advanced topics derived from painful mistakes and numerous revisions of processes. This book covers many of the topics omitted from the first book including multi-factor authentication, cloud key management, enterprise change management, entity veracity, homomorphic computing, device management, mobile ad hoc, big data, mediation, and several other topics. The ELS model of enterprise security is endorsed by the Secretary of the Air Force for Air Force computing systems and is a candidate for DoD systems under the Joint Information Environment Program. The book is intended for enterprise IT architecture developers, application developers, and IT security professionals. This is a unique approach to end-to-end security and fills a niche in the market.

Download or read book Parallel Programming with OpenACC written by Rob Farber and published by Newnes. This book was released on 2016-10-14 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parallel Programming with OpenACC is a modern, practical guide to implementing dependable computing systems. The book explains how anyone can use OpenACC to quickly ramp-up application performance using high-level code directives called pragmas. The OpenACC directive-based programming model is designed to provide a simple, yet powerful, approach to accelerators without significant programming effort. Author Rob Farber, working with a team of expert contributors, demonstrates how to turn existing applications into portable GPU accelerated programs that demonstrate immediate speedups. The book also helps users get the most from the latest NVIDIA and AMD GPU plus multicore CPU architectures (and soon for Intel® Xeon PhiTM as well). Downloadable example codes provide hands-on OpenACC experience for common problems in scientific, commercial, big-data, and real-time systems. Topics include writing reusable code, asynchronous capabilities, using libraries, multicore clusters, and much more. Each chapter explains how a specific aspect of OpenACC technology fits, how it works, and the pitfalls to avoid. Throughout, the book demonstrates how the use of simple working examples that can be adapted to solve application needs. Presents the simplest way to leverage GPUs to achieve application speedups Shows how OpenACC works, including working examples that can be adapted for application needs Allows readers to download source code and slides from the book's companion web page