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Designing Next-Generation Massively Multithreaded Architectures for Irregular Applications

In this article, authors discuss Cray XMT, a massively multithreaded architecture framework that addresses the needs of irregular data-intensive applications in emerging fields like bioinformatics, semantic databases, natural language processing, and social network analysis. They also compare this approach with other multithreaded architectures such as GPUs and UltraSPARC processors.

Simone Secchi Oreste Villa Antonino Tumeo
on Dec 31, 2012
Exterminating Heisenbugs

Victor Grazi presents ten tips to keep in mind when architecting or developing concurrent applications in Java.

Victor Grazi
on Jul 24, 2012
Interview and Book Review: Programming Concurrency on the JVM

In his latest book "Programming Concurrency on the JVM" author Venkat Subramaniam talks about the concurrency techniques using different JVM programming languages. He also discusses Software Transactional Memory (STM) and Actor-based Concurrency. InfoQ spoke with Venkat about his new book.

Srini Penchikala
on Jan 10, 2012
Joe Duffy on the Future of Concurrency and Parallelism

Joe Duffy, author of Concurrent Programming on Windows, talks about the future of concurrency and parallelism. This interview covers his thoughts on the language designs, libraries, and patterns that are becoming increasing important in modern programming.

Jonathan Allen
on May 31, 2011
Web Development

No Callbacks Required: StratifiedJS Returns Sequential Programming to Javascript

StratifiedJS is a superset of Javascript that adds concurrency constructs and makes callback hell a thing of the past. How? InfoQ talked to Alexander Fritze, of Onilabs, to find out.

Werner Schuster
on Dec 19, 2010
Profiling java.util.concurrent locks

IBM’s Yao Qi, Raja Das, and Zhi Da Luo describe jucprofiler, an alphaWorks tool designed to profile multicore applications that make use of the java.util.concurrent classes introduced in Java 5.

Yao Qi Zhi Da Luo Raja Das
on May 27, 2010
Memory Barriers and JVM Concurrency

Memory barriers, or fences, are a set of processor instructions used to apply ordering limitations on memory operations. This article explains the impact memory barriers have on the determinism of multi-threaded programs. We'll look at how memory barriers relate to JVM concurrency constructs such as volatile, synchronized and atomic conditionals.

Dennis Byrne
on Mar 08, 2010
Service Dynamics: the lazy man's way

This article describes "the hardest topic in OSGi, how to deal with service dynamics," based on personal experience. Two factors, concurrency and direct service references, make the problem "fiendishly hard." An import and an export policy should form a comprehensive doctrine for dealing with service dynamics and the article explores two export policies with their corresponding doctrines.

Todor Boev
on Jul 29, 2009
Concurrency and Immutability

This article explores the issue of immutability as a function of concurrency demands in modern software applications. The discussion occurs in the general context of dependency injection.

Dhanji Prasanna
on Jun 26, 2009
Using the Concurrency and Coordination Runtime

Nick Gunn provides a practical introduction the Concurrency and Coordination Runtime for .NET. CCR radically changes the way multi-threaded applications are written in .NET, shifting the focus from threads and locks to lightweight, asynchronous tasks.

Nick Gunn
on Jan 28, 2009
Using Ruby Fibers for Async I/O: NeverBlock and Revactor

Rails 2.2 is schedule to be thread safe - but will blocking I/O libraries make it necessary to run multiple Ruby instances? We take a look at how non-blocking I/O and Ruby 1.9's Fibers help solve the problem. We talked to Mohammad A. Ali of the NeverBlock project and Tony Arcieri of the Revactor project.

Werner Schuster
on Aug 28, 2008
Introducing Multithreaded Programming to JavaScript

While increasingly more websites are fully or partially based on AJAX, it is still difficult to develop complicated AJAX applications. What is the main issue which causes this difficulty in developing AJAX applications? Is it asynchronous communication with the server, or is it GUI programming? How can a multithreading JavaScript library help to ease some of these issues?

Daisuke Maki translated by Daisuke Maki
on Jul 10, 2008