Characterization And Optimization Of The I O Software Stack In Complex Applications And Workflows
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Middleware For Communications
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Author : Qusay Mahmoud
language : en
Publisher: John Wiley & Sons
Release Date : 2004-07-30
Middleware For Communications written by Qusay Mahmoud and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-07-30 with Technology & Engineering categories.
A state-of-the-art guide to middleware technologies, and their pivotal role in communications networks. Middleware is about integration and interoperability of applications and services running on heterogeneous computing and communications devices. The services it provides - including identification, authentication, authorization, soft-switching, certification and security - are used in a vast range of global appliances and systems, from smart cards and wireless devices to mobile services and e-Commerce. Qusay H. Mahmoud has created an invaluable reference tool that explores the origins and current uses of middleware (highlighting the importance of such technologies as CORBA, J2EE and JMS) and has thus compiled the roadmap to future research in this area. Middleware for Communications: discusses the emerging fields of Peer-to-Peer (P2P) and grid middleware detailing middleware platforms such as JXTA and the Globus middleware toolkit. shows how Middleware will play a significant role in mobile computing. presents a Platform Supporting Mobile Applications (PLASMA) - a middleware platform that consists of components for location, event, and profile handling of Location-Based Services. introduces middleware security focusing on the appropriate aspects of CORBA, J2EE, and .NET and demonstrates how to realize complex security capabilities such as role-based access control (RBAC) and mandatory access control (MAC). discusses how Quality of Service (QoS) component middleware can be combined with Model Driven Architecture (MDA) technologies to rapidly develop, generate, assemble and deploy flexible communications applications. This incomparable overview of middleware for communications is suitable for graduate students and researchers in communications and computing departments. It is also an authoritative guide for engineers and developers working on distributed systems, mobile computing and networked appliances.
Demystifying Embedded Systems Middleware
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Author : Tammy Noergaard
language : en
Publisher: Elsevier
Release Date : 2010-11-04
Demystifying Embedded Systems Middleware written by Tammy Noergaard and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-04 with Technology & Engineering categories.
This practical technical guide to embedded middleware implementation offers a coherent framework that guides readers through all the key concepts necessary to gain an understanding of this broad topic. Big picture theoretical discussion is integrated with down-to-earth advice on successful real-world use via step-by-step examples of each type of middleware implementation. Technically detailed case studies bring it all together, by providing insight into typical engineering situations readers are likely to encounter. Expert author Tammy Noergaard keeps explanations as simple and readable as possible, eschewing jargon and carefully defining acronyms. The start of each chapter includes a "setting the stage" section, so readers can take a step back and understand the context and applications of the information being provided. Core middleware, such as networking protocols, file systems, virtual machines, and databases; more complex middleware that builds upon generic pieces, such as MOM, ORB, and RPC; and integrated middleware software packages, such as embedded JVMs, .NET, and CORBA packages are all demystified. - Embedded middleware theory and practice that will get your knowledge and skills up to speed - Covers standards, networking, file systems, virtual machines, and more - Get hands-on programming experience by starting with the downloadable open source code examples from book website
Characterization And Optimization Of The I O Software Stack In Complex Applications And Workflows
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Author : Fahim Tahmid Chowdhury
language : en
Publisher:
Release Date : 2023
Characterization And Optimization Of The I O Software Stack In Complex Applications And Workflows written by Fahim Tahmid Chowdhury and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with Computer science categories.
Researchers and scientists regularly work on solving complex real-worldproblems in medical science, environmental science, astrophysics, et cetera, to achieve mission-critical research goals through scientific campaigns. These campaigns are nowadays materialized by workflows of applications executing on high-performance computing (HPC), replacing an age-old monolithic application-based strategy. Moreover, the current data-driven research trend mandates the emergence of data-intensive HPC applications. These applications need to manage high volume and velocity of data transfer and consist of tasks that need inter- or intra-application flows of data to execute successfully. While handling data volume and velocity is an established field, managing dataflow is a new area requiring careful research. Effective dataflow management has to address many HPC I/O issues. For instance, dataflow in an HPC workflow creates dependencies among the tasks and causes resource contention on shared storage systems, thus limiting the aggregated I/O bandwidth achieved by the workflow. Besides, inefficient dataflow management causes unnecessary data movement that can further limit performance. Leadership HPC systems are typically equipped with a deep storage hierarchyof node-local ram disks, burst buffers, global parallel file systems (PFS), et cetera The appropriate usage of this powerful HPC storage stack can overcome the data management issues in HPC workflows. This storage stack can be optimal by employing effective dataflow management strategies. Most of the state-of-the-art techniques optimize data placement after the task scheduling process. These methods perform data management as an aftereffect of task scheduling and can cause unnecessary data movement and limit I/O bandwidth. Our research demonstrates that overcoming these I/O performance limitations is possible by co-scheduling tasks and data to computation and storage resources. Developing a practically usable task-data co-scheduling framework for optimizingI/O performance of the dataflow of an HPC workflow has to deal with four types of challenges. Firstly, this maneuver demands a holistic knowledge of the infrastructure of the HPC system that runs the workflow. More precisely, we must establish a methodology to understand the HPC storage stack used by the dataflow in a workflow. For a thorough understanding, we need to evaluate the performance of its different components, then present the relationships of the components in an understandable format for the optimization framework. Secondly, we need to understand the data dependencies in a workflow. At a higher granularity, we need to analyze the dataflow and extract the producer-consumer relationships among the applications of the workflow. We eventually have to find the tasks involved in each application and devise a strategy to represent the task-data relationships in the dataflow. Thirdly, we have to deal with the challenges of leveraging the above system and dataflow-specific information in a feasible task-data co-scheduling scheme. In detail, a task-data co-scheduling optimization policy has to assign the tasks to computation resources and the data instances to storage systems such that the I/O performance of a dataflow can be optimized. This optimization is a combination of two NP-hard general assignment problems. Due to exponential time complexity, finding the solutions to these problems can be impossible in practice. Hence, in the first step, we need to develop a polynomial time algorithm to achieve theoretical feasibility. Finally, although a polynomial time co-scheduling strategy is sufficient for a static and offline scheduling framework, developing an online task-data co-scheduler for dynamic dataflow has to incorporate a faster optimization model that can run in a pipeline with workflow execution. In particular, we have to come up with an algorithm to approximate the co-scheduling scheme via a faster linear time greedy approach and adapt the policies as the dataflow behaviors change or we discover unknown areas in the dataflow during execution. This dissertation investigates the techniques to optimize aggregated I/O bandwidthin HPC workflows by addressing the challenges mentioned above in the course of four systematic studies. This research work is the consequence of these four studies to gradually converge the outcome towards an online task-data co-scheduling framework for complex HPC workflows. The studies start with a deep understanding of the components of the HPC storage stack, and we then focus on extracting and representing the dataflow information. Using these dataflow and storage stack information extraction and representation mechanisms, we first design and develop an offline static task-data co-scheduling framework. Our work finally culminates toward developing an online task-data co-scheduler that runs with workflow execution and dynamically adjust scheduling policies. More precisely, we perform the following studies. Firstly, we perform a holistic performanceevaluation case study on BeeGFS, an emerging PFS. We explore the architectural and system features of BeeGFS and run an experimental evaluation using cutting-edge I/O and metadata benchmarks. Therefore, we develop a framework of benchmarks and tools for systematically evaluating file-based HPC storage systems. Secondly, we start with characterizing the deep learning (DL) training I/O,and gradually broaden our I/O behavior exploration toward I/O workload with more complex data dependencies. Consequently, we develop Wemul, an emulation framework for better analysis of I/O and construction of benchmarks for evaluating I/O optimization strategies. Thirdly, we introduce DFMan, a graph-based static dataflow managementand optimization framework for maximizing I/O bandwidth by leveraging the powerful storage stack on HPC systems to manage data sharing optimally among the tasks in the workflows. Particularly, we devise a graph-based optimization algorithm that can leverage an intuitive graph representation of dataflow- and system-related information, and automatically carry out close to optimal co-scheduling of tasks and data placement. Finally, we design and develop GDCFlow, a fast and online task-dataco-scheduling framework for HPC dataflow optimization. More precisely, we design a novel Split-Apply/Update-Combine-Emit (SAUCE) strategy to employ a greedy task-data co-scheduling algorithm to find approximately near-optimal scheduling policies that have magnitude times lower time cost and pipeline optimization with workflow execution to hide most of the scheduling cost. According to our thorough experimentation, we found that DFMan performs comparably to manually tuned optimal scheduling policies for HPC workflows and GDCFlow's greedy approximation delivers close to the performance of DFMan's globally optimized schemes, but with much lower scheduling time overhead.
Business Process Management Design Guide Using Ibm Business Process Manager
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Author : Dr. Ali Arsanjani
language : en
Publisher: IBM Redbooks
Release Date : 2015-04-27
Business Process Management Design Guide Using Ibm Business Process Manager written by Dr. Ali Arsanjani and has been published by IBM Redbooks this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-27 with Computers categories.
IBM® Business Process Manager (IBM BPM) is a comprehensive business process management (BPM) suite that provides visibility and management of your business processes. IBM BPM supports the whole BPM lifecycle approach: Discover and document Plan Implement Deploy Manage Optimize Process owners and business owners can use this solution to engage directly in the improvement of their business processes. IBM BPM excels in integrating role-based process design, and provides a social BPM experience. It enables asset sharing and creating versions through its Process Center. The Process Center acts as a unified repository, making it possible to manage changes to the business processes with confidence. IBM BPM supports a wide range of standards for process modeling and exchange. Built-in analytics and search capabilities help to further improve and optimize the business processes. This IBM Redbooks® publication provides valuable information for project teams and business people that are involved in projects using IBM BPM. It describes the important design decisions that you face as a team. These decisions invariably have an effect on the success of your project. These decisions range from the more business-centric decisions, such as which should be your first process, to the more technical decisions, such as solution analysis and architectural considerations.
Data Intensive Text Processing With Mapreduce
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Author : Jimmy Lin
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2010-10-10
Data Intensive Text Processing With Mapreduce written by Jimmy Lin and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-10 with Computers categories.
Our world is being revolutionized by data-driven methods: access to large amounts of data has generated new insights and opened exciting new opportunities in commerce, science, and computing applications. Processing the enormous quantities of data necessary for these advances requires large clusters, making distributed computing paradigms more crucial than ever. MapReduce is a programming model for expressing distributed computations on massive datasets and an execution framework for large-scale data processing on clusters of commodity servers. The programming model provides an easy-to-understand abstraction for designing scalable algorithms, while the execution framework transparently handles many system-level details, ranging from scheduling to synchronization to fault tolerance. This book focuses on MapReduce algorithm design, with an emphasis on text processing algorithms common in natural language processing, information retrieval, and machine learning. We introduce the notion of MapReduce design patterns, which represent general reusable solutions to commonly occurring problems across a variety of problem domains. This book not only intends to help the reader "think in MapReduce", but also discusses limitations of the programming model as well. Table of Contents: Introduction / MapReduce Basics / MapReduce Algorithm Design / Inverted Indexing for Text Retrieval / Graph Algorithms / EM Algorithms for Text Processing / Closing Remarks
Temenos On Ibm Linuxone Best Practices Guide
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Author : Deana Coble
language : en
Publisher: IBM Redbooks
Release Date : 2020-02-11
Temenos On Ibm Linuxone Best Practices Guide written by Deana Coble and has been published by IBM Redbooks this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-11 with Computers categories.
The world's most successful banks run on IBM®, and increasingly IBM LinuxONE. Temenos, the global leader in banking software, has worked alongside IBM for many years on banking deployments of all sizes. This book marks an important milestone in that partnership. Temenos on IBM LinuxONE Best Practices Guide shows financial organizations how they can combine the power and flexibility of the Temenos solution with the IBM platform that is purpose built for the digital revolution.
The Robotic Process Automation Handbook
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Author : Tom Taulli
language : en
Publisher: Apress
Release Date : 2020-02-28
The Robotic Process Automation Handbook written by Tom Taulli and has been published by Apress this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-28 with Computers categories.
While Robotic Process Automation (RPA) has been around for about 20 years, it has hit an inflection point because of the convergence of cloud computing, big data and AI. This book shows you how to leverage RPA effectively in your company to automate repetitive and rules-based processes, such as scheduling, inputting/transferring data, cut and paste, filling out forms, and search. Using practical aspects of implementing the technology (based on case studies and industry best practices), you’ll see how companies have been able to realize substantial ROI (Return On Investment) with their implementations, such as by lessening the need for hiring or outsourcing. By understanding the core concepts of RPA, you’ll also see that the technology significantly increases compliance – leading to fewer issues with regulations – and minimizes costly errors. RPA software revenues have recently soared by over 60 percent, which is the fastest ramp in the tech industry, and they are expected to exceed $1 billion by the end of 2019. It is generally seamless with legacy IT environments, making it easier for companies to pursue a strategy of digital transformation and can even be a gateway to AI. The Robotic Process Automation Handbook puts everything you need to know into one place to be a part of this wave. What You'll Learn Develop the right strategy and plan Deal with resistance and fears from employees Take an in-depth look at the leading RPA systems, including where they are most effective, the risks and the costs Evaluate an RPA system Who This Book Is For IT specialists and managers at mid-to-large companies
Fullstack React
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Author : Accomazzo Anthony
language : en
Publisher: Fullstack.IO
Release Date : 2017-03
Fullstack React written by Accomazzo Anthony and has been published by Fullstack.IO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03 with Computers categories.
LEARN REACT TODAY The up-to-date, in-depth, complete guide to React and friends. Become a ReactJS expert today
A New Kind Of Science
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Author : Stephen Wolfram
language : en
Publisher: Wolfram Media
Release Date : 2018-11-30
A New Kind Of Science written by Stephen Wolfram and has been published by Wolfram Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-30 with categories.
NOW IN PAPERBACK"€"Starting from a collection of simple computer experiments"€"illustrated in the book by striking computer graphics"€"Stephen Wolfram shows how their unexpected results force a whole new way of looking at the operation of our universe.