41. Agtivity | Definition: Concurrent Programming Foundations of Software Agent Technology Dedicated to turning the construction and deployment of Software Agent Technology (Intelligent Agents, http://agtivity.com/concurrent_programming.htm

Definition: Concurrent Programming By Jack Krupansky Concurrent programming is an approach to developing a single computer program in such a way that portions of the program can be allocated to different processors so that they may run in parallel. Software agents are already separate computer programs that can run in parallel, but portions of even a small software agent may in fact be suitable for being parceled out to other processors. In addition, the techniques for coordinating parallel processes may well prove quite useful for coordinating software agents.. See the Wikipedia article on Concurrent Programming and Parallel Programming Home Blog Books ... Contact Updated: March 12, 2005 07:01:19 PM -0500

42. The Free Lunch Is Over: A Fundamental Turn Toward Concurrency In Software But the concurrent programming model is learnable, particularly if we stick to But concurrent lockfree programming is known to be very much harder for http://www.gotw.ca/publications/concurrency-ddj.htm

The Free Lunch Is Over: A Fundamental Turn Toward Concurrency in Software The Free Lunch Is Over: A Fundamental Turn Toward Concurrency in Software By Herb Sutter The biggest sea change in software development since the OO revolution is knocking at the door, and its name is Concurrency. This article appeared in Dr. Dobb's Journal , 30(3), March 2005 . A much briefer version under the title "The Concurrency Revolution" appeared in C/C++ Users Journal , 23(2), February 2005 Your free lunch will soon be over. What can you do about it? What are you doing about it? The major processor manufacturers and architectures, from Intel and AMD to Sparc and PowerPC, have run out of room with most of their traditional approaches to boosting CPU performance. Instead of driving clock speeds and straight-line instruction throughput ever higher, they are instead turning en masse to hyperthreading and multicore architectures. Both of these features are already available on chips today; in particular, multicore is available on current PowerPC and Sparc IV processors, and is coming in 2005 from Intel and AMD. Indeed, the big theme of the 2004 In-Stat/MDR Fall Processor Forum was multicore devices, as many companies showed new or updated multicore processors. Looking back, it’s not much of a stretch to call 2004 the year of multicore. And that puts us at a fundamental turning point in software development, at least for the next few years and for applications targeting general-purpose desktop computers and low-end servers (which happens to account for the vast bulk of the dollar value of software sold today). In this article, I’ll describe the changing face of hardware, why it suddenly does matter to software, and how specifically the concurrency revolution matters to you and is going to change the way you will likely be writing software in the future.

43. Concurrent Programming Principles and resources. http://stwi.weizmann.ac.il/g-cs/benari/home/cp.html

44. The Joys Of Concurrent Programming Concurrency techniques are used to allow a computer program to do more work over the same time period concurrent programming in Java Creating Threads http://www.informit.com/articles/article.asp?p=30413

45. Concurrent Programming In Erlang The first half of concurrent programming in Erlang. http://www.erlang.org/download/erlang-book-part1.pdf

46. Concurrent Object-Oriented Programming This first chapter from concurrent programming in Java, second edition, If you do a lot of concurrent programming, you will want to read more about some http://www.informit.com/articles/article.asp?p=167813

47. Tempo A Declarative Concurrent Programming Language Based on classical firstorder logic; improves on usual concurrent logic languages (eg, Parlog) by explicitly specifying aspects of behavior of concurrent programs, namely safety properties; gives advantages in writing concurrent programs and manipulating them while preserving correctness. http://citeseer.ist.psu.edu/rd/46765635,519806,1,0.25,Download/http://citeseer.i

48. ProQuest Information And Learning - Concurrent Programming In Java™: Design Pri In concurrent programming in Java, Second Edition, you will find thoroughly updated coverage of the Java 2 platform and new or expanded coverage of Memory http://proquest.safaribooksonline.com/0201310090

ProQuest Information and Learning Company Home Desktop Bookshelf Notes ... Bookmarks By Doug Lea Publisher: Addison Wesley Pub Date: October 01, 1999 ISBN: Pages: Slots: Table of Contents In Concurrent Programming in Java, Second Edition , you will find thoroughly updated coverage of the Java 2 platform and new or expanded coverage of: Memory model Cancellation Portable parallel programming Utility classes for concurrency control The Java platform provides a broad and powerful set of APIs, tools, and technologies. One of its most powerful capabilities is the built-in support for threads. This makes concurrent programming an attractive yet challenging option for programmers using the Java programming language. This book shows readers how to use the Java platform's threading model more precisely by helping them to understand the patterns and tradeoffs associated with concurrent programming. You will learn how to initiate, control, and coordinate concurrent activities using the class java.lang.Thread, the keywords synchronized and volatile, and the methods wait, notify, and notifyAll. In addition, you will find detailed coverage of all aspects of concurrent programming, including such topics as confinement and synchronization, deadlocks and conflicts, state-dependent action control, asynchronous message passing and control flow, coordinated interaction, and structuring web-based and computational services. The book targets intermediate to advanced programmers interested in mastering the complexities of concurrent programming. Taking a design pattern approach, the book offers standard design techniques for creating and implementing components that solve common concurrent programming challenges. The numerous code examples throughout help clarify the subtleties of the concurrent programming concepts discussed.

49. Concurrency In Ada - Cambridge University Press By Alan Burns, Andy Wellings; Cambridge University Press, 1998, ISBN 052162911X. A main Ada trait is facilities for concurrent programming; thorough, selfcontained book, good for beginners to experts. Cambridge University Press http://books.cambridge.org/052162911X.htm

Home Catalogue Details 25 line diagrams Weight: 0.652 kg Library of Congress Dewey number: 005.13/3 Dewey version: 21 LC Classification: QA76.73.A35 B85 1998 LC Subject headings: Ada (Computer program language) Parallel programming (Computer science) Library of Congress Record Concurrency in Ada 2nd Edition Alan Burns University of York Andy Wellings University of York Foreword by John Barns Paperback There was also a Hardback of this title but it is no longer available In stock (Stock level updated: 12:32 GMT, 20 September 2005) Contents 1. The Ada language; 2. The nature and uses of concurrent programming; 3. Inter-process communication; 4. Ada task types and objects; 5. The rendezvous; 6. The select statement and the rendezvous; 7. Protected objects and data-oriented communication; 8. Avoidance synchronisation and requeue facility; 9. Using protected objects as building blocks; 10. Exceptions, abort and asynchronous transfer of control; 11. Tasking and systems programming; 12. Real-time programming; 13. Object-oriented programming and tasking; 14. Distributed systems; 15. Conclusion; Bibliography; Index. Review ‘Everyone should read this excellent book, and every real-time Ada developer should own it  I highly recommend it.’Computing Reviews

50. Linux Magazine concurrent programming has been around for a long time. The concurrent programming errors described in this article are divided into two categories http://www.linux-mag.com/content/view/983/2217/

var sc_project=624054; var sc_partition=5; var sc_security="0834b30c"; var sc_remove_link=1; Register Login Home Topics ... Register To view this content, you must be a registered user of the Linux Magazine web site. Registration is free, quick, and provides access to over 1,000 online articles. Please register or login. Topics Back Issues Booting Up Cluster Rant Do It Yourself ... In the Trenches On Newsstands Now Read about the Monarch Empro Enterprise 4-CPU, 8-processor 3U rack server

51. Linux Magazine available (and when to use specific options) for writing threaded code. Enjoy experimenting with concurrent programming, and as always, happy hacking! http://www.linux-mag.com/content/view/757/2231/

var sc_project=624054; var sc_partition=5; var sc_security="0834b30c"; var sc_remove_link=1; Register Login Home Topics ... Register You are not authorized to view this resource. You need to login. Topics Back Issues Booting Up Cluster Rant Do It Yourself ... In the Trenches On Newsstands Now Read about the Monarch Empro Enterprise 4-CPU, 8-processor 3U rack server

52. LtU Classic Archives I am wondering whether LtU should have a parallelconcurrent programming department. Peter Van Roy - Re Parallel-concurrent programming Dept. blueArrow http://lambda-the-ultimate.org/classic/message11633.html

Lambda the Ultimate Parallel-Concurrent Programming Dept. started 3/24/2004; 3:38:43 PM - last post 4/8/2004; 3:57:02 PM Mark Evans - Parallel-Concurrent Programming Dept. 3/24/2004; 3:38:43 PM (reads: 393, responses: 15) I am wondering whether LtU should have a parallel-concurrent programming department. There are just so many nice projects, for example, Cilk I won't lobby for a real-time department or an embedded programming department, but will just dream about them in my sleep. Ehud Lamm - Re: Parallel-Concurrent Programming Dept. 3/25/2004; 2:46:30 AM (reads: 332, responses: 0) How about a deparment dedicated to parallel/distributed programming? David B. Wildgoose - Re: Parallel-Concurrent Programming Dept. 3/25/2004; 6:30:32 AM (reads: 319, responses: 0) I would support that idea. Sorry to sound like a scratched record, but as multiple multi-core processors become the norm, every language is going to have to grapple with parallelism. Mark Evans - Re: Parallel-Concurrent Programming Dept. 3/25/2004; 4:37:27 PM (reads: 289, responses: 0)

53. Java: Tips, Tutorials And How-tos Links to free online lessons on Java subjects ranging from concurrent programming to optimization to Java for beginners http://www.knowledgehound.com/topics/java.htm

Java Tips, Tutorials Concurrent Programming, JSP (JavaServer Pages), OOP, Optimization, Scripting On this page In this category Related topics General/Mixed/Misc. JSP Programming (main page) ASP ... Web Development GENERAL/MIXED/MISC. A Practical Guide for Programmers - The Java Tutorial A Tutorial - Brewing Java ... Marty Hall SEARCH MAIN PAGES Original how-tos Animals Automotive The Environment Food Life Skills Recreation Site Map Home Sign up for our how-to newsletter Return to top of page The Environment Recreation ... Home

54. Concurrent Programming And Verification: Outline or an operating systems course covering the basics of concurrent programming. As such, this will not cover concurrent programming techniques. http://cnx.rice.edu/content/m12311/latest/

Concurrent Programming and Verification: Outline By: Ian Barland, John Greiner, Moshe Vardi Verification of Concurrent Programs How can we know whether our programs have bugs? This is the pre-eminent question in software engineering today. Test suites are important, but no amount of tests can conclusively show a program to be bug-free. In concurrent programs in particular, bugs can be difficult to find and replicate through trial (and error). Proving that your program meets certain specs would be most desirable. How to meet this goal routinely has been a long-standing goal in computer science. Historically, there have been significant difficulties in making such proofs practical, but verification technology is significantly improving. In this module, we look at some of the issues involved — how to describe, reason about, and verify properties — specifically as applied to concurrency. We will look at two related ways to understand concurrent programs. First, we write small programs in Promela, a language with a familiar C-like syntax, but suited for concurrent programs. We use Promela's partner tool, SPIN, to verify various properties our program's behavior. Second, we introduce state-based transition systems — an equivalent model for concurrent programs, but one which is more suitable for reasoning about their behavior.

55. The Functional Logic Language Curry Multiparadigm declarative programming language seamlessly merges functional, logic, and concurrent programming paradigms; covers the most important operational principles in the area of integrated functional logic languages. http://www.informatik.uni-kiel.de/~curry/

A Truly Integrated Functional Logic Language Curry is a universal programming language aiming to amalgamate the most important declarative programming paradigms, namely functional programming and logic programming . Moreover, it also covers the most important operational principles developed in the area of integrated functional logic languages : "residuation" and "narrowing" (you find here a survey on functional logic programming). Curry combines in a seamless way features from functional programming (nested expressions, higher-order functions, lazy evaluation), logic programming (logical variables, partial data structures, built-in search), and concurrent programming (concurrent evaluation of expressions with synchronization on logical variables). Moreover, Curry provides additional features in comparison to the pure languages (compared to functional programming: search, computing with partial information; compared to logic programming: more efficient evaluation due to the deterministic and demand-driven evaluation of functions). The development of Curry is an international initiative intended to provide a common platform for the research, teaching and application of integrated functional logic languages. The design of Curry is mainly discussed in the

56. Lf272, SoftwareDevelopment: Concurrent Programming - Principles And Introduction concurrent programming Principles and introduction to processes. run in paralell. Abstract. This series of articles has the purpose of introducing the http://www.linuxfocus.org/English/November2002/article272.shtml

Home Map Index Search ... About LF This document is available in: English Castellano ChineseGB Deutsch ... Convert to GutenPalm or to PalmDoc by Leonardo Giordani About the author: Student at the Faculty of Telecommunication Engineering in Politecnico of Milan, works as network administrator and is interested in programming (mostly in Assembly and C/C++). Since 1999 works almost only with Linux/Unix. Translated to English by: Leonardo Giordani Content Introduction The concept of process Processes in Linux and Unix Mutitasking in the libc ... Talkback form for this article Concurrent programming - Principles and introduction to processes Abstract This series of articles has the purpose of introducing the reader to the concept of multitasking and to its implementation in the Linux operating system. Starting from the theorical concepts at the base of multitasking we will end up writing a complete application demonstrating the communication between processes, with a simple but efficient communication protocol. Prerequisites for the understanding of the article are: Minimal knowledge of the shell Basic knowledege of C language (syntax, loops, libraries)

57. Lf316, SoftwareDevelopment: Concurrent Programming - Message Queues (3) concurrent programming Message queues (3). run in paralell. Abstract. This is the last article in the series about concurrent programming here we will http://www.linuxfocus.org/English/November2003/article316.shtml

Home Map Index Search ... About LF This document is available in: English Castellano Deutsch Francais ... Turkce by Leonardo Giordani About the author: I just received my diploma from the Faculty of Telecommunication Engineering in Politecnico of Milan. Interested in programming (mostly in Assembly and C/C++). Since 1999 works almost only with Linux/Unix. Content Protocol implementation - Layer 2 - General Implementation of the user process Implementation of the switch process Final considerations ... Talkback form for this article Concurrent programming - Message queues (3) Abstract This is the last article in the series about concurrent programming: here we will implement the second and last layer of our protocol, creating functions that will implement the user's behaviour on the basis of the first layer developed in the past article. It might be also a good idea to read some of the previous article in this series first: Concurrent programming - Message queues (2) Concurrent programming - Principles and introduction to processes Concurrent programming - Communications between processes Concurrent programming - Message queues (1) Protocol implementation - Layer 2 - General The ipcdemo program has been developed to be a simple implementation of a switch between users which try to send messages to one another. To add some fun to the simulation I added the concept of "service": a service message (signalling) is a message which main purpose is not to carry user-to-user data, but control information. The service messages will be sent by users to the switch to let it know that they are alive, how to reach them (sending IPC queue id) and that they are terminating. Two more services have been defined: Termination and Timing; the first one is used by the switch to tell the user that it should terminate, the second tries to measure the user's response time. More on this will be discussed later in the user and in the switch section.

58. Java Theory And Practice: Safe Construction Techniques concurrent programming in Java applications is more complicated than it looks there are several subtle (and not so subtle) ways to create data races and other concurrency hazards in Java programs. In this installment of Java theory and practice, Brian Goetz looks at a common threading hazard allowing the this reference to escape during construction. This harmlesslooking practice can cause unpredictable and undesirable results in your Java programs. http://www-106.ibm.com/developerworks/library/j-jtp0618.html

var title = "Java theory and practice: Safe construction techniques"; var contentAreaList = "java, "; var emailAbstract = "Concurrent programming in Java applications is more complicated than it looks: there are several subtle (and not so subtle) ways to create data races and other concurrency hazards in Java programs. In this installment of Java theory and practice, Brian Goetz looks at a common threading hazard: allowing the this reference to escape during construction. This harmless-looking practice can cause unpredictable and undesirable results in your Java programs."; Country/region select All of dW eServer Lotus Rational Tivoli WebSphere Autonomic computing Grid computing Java technology Linux Open source Power Architecture Web architecture Wireless XML dW forums dW Subscription alphaWorks All of IBM Home Products My account developerWorks ... Rate this page Related links Java technology technical library developerWorks Java technology Java theory and practice: Safe construction techniques Don't let the "this" reference escape during construction Document options Document options requiring JavaScript are not displayed Discuss Rate this page Help us improve this content Level: Intermediate Brian Goetz brian@quiotix.com

59. Parallel Programming: Information From Answers.com parallel programming Parallel programming (also concurrent programming), is a computer programming technique that provides for the execution of. http://www.answers.com/topic/parallel-programming

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping parallel programming Wikipedia parallel programming Parallel programming (also concurrent programming), is a computer programming technique that provides for the execution of operations concurrently, either within a single computer, or across a number of systems. In the latter case, the term distributed computing is used. Multiprocessor machines achieve better performance by taking advantage of this kind of programming. In parallel programming, single tasks are split into a number of subtasks that can be computed relatively independently and then aggregated to form a single coherent solution. Parallel programming is most effective for tasks that can easily broken down into independent tasks such as purely mathematical problems, e.g. factorisation. One way to achieve parallel programming is through distributed computing , which is a method of information processing in which work is performed by separate computers linked through a communications network. Parallel programming often relies on specialized algorithms, which allow problems to be split up into pieces. However, not all algorithms can be optimized to run in a distributed environment, often leading to different performance issues from single processor systems.

60. Concurrent Programming : Application Design And Implementation - Product Enginee CSWL provides Application Design and its Implementation. We have wellstructured product engineering services for prototyping, product reengineering and its http://www.cswl.com/whiteppr/white/concurrent.html

Company Services Offshoring Expertise Areas ... Call Me Enter your name and phone number and a CSWL specialist will call you back Contact CSWL Contact a CSWL specialist through our simple contact form. Whitepapers Issues in Concurrent Programming - Whitepaper The whys and the wherefores of concurrent programming as applied to multi-threaded, multi-processing and distributed processing systems. Many of the techniques presented here are also applicable to real-time systems. The paper presents the most commonly used concurrent programming techniques as solutions to avoid emergent effects. It also points out many pitfalls one might come across while actually designing and implementing systems that need to use concurrency, and offers solutions for the same. Technical Expertise Level : Intermediate Requires knowledge of : Operating Systems, Software Design September 23, 1998 Download this document MS Wordformat [79k Zipped] Adobe Acrobat PDF format [100k Zipped] Index Introduction Behind The Theory When Do We Need Concurrent Programming?

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