<pedrocorreia.net ⁄>

<.NET 4.0 will include Parallel Extensions ⁄ >

clicks: 3121 3121 2008-10-14 2008-10-14 goto tecnologia myNews tecnologia  Bookmark This Bookmark This

Parallelism in programming has largely been conducted in the laboratories. But with the next version of the .NET Framework, developers everywhere will be able to experiment with what could become a monumental change in languages.

In perhaps the most significant development in the brief history of the field of implicit parallelism in computing, one of Microsoft's development teams announced last Friday that the next .NET Framework 4.0 -- the first glimpses of which we'll see later this month from PDC in Los Angeles -- will include the so-called Parallel Extensions as a standard feature. This after the Extensions were first introduced in a Community Technology Preview last November.

The significance of these extensions is that they enable existing .NET languages (today, most predominantly, C#) to incorporate implicit parallelism directly in programs. In other words, rather than simply write ordinary procedural code and use compiler switches to determine whether code can be forked into parallel threads, a developer can use entirely new syntax to invoke methods that execute multiple threads concurrently.

In conjunction with the new Language Integrated Query (LINQ) that Microsoft already introduced formally earlier this year, the possibilities for parallel applications that run on multicore servers or data clusters is astounding. To explain: In the old procedural model of algorithmic programming, any function that affects a set of data in a table based on conditions, has to include instructions that explicitly examine each record in that table, test it for the current criteria, and invoke changes to all records that pass. With LINQ, a more SQL-like structure is utilized instead, where a single instruction can point automatically to all records that match criteria, and the change is stated once and once only.

Now, pair that with the Parallel Extensions: Using an up-and-coming syntax gleaned from calculus called lambda expressions, a C# developer can write an instruction where the criteria are expressed inline, similar to an anonymous delegate. It becomes a way of saying in a single expression, "For all x where x meets these criteria, make a change according to the following..."

este é só um excerto do artigo, para aceder ao artigo completo, clique no link em baixo:
this is just a small excerpt from the article, to access the full article please click in the link below:


Subscribe News RSS  Subscribe News Updates by E-mail

myNews <myNews show="rand" cat="tecnologia" ⁄>

MongoDb Architecture new ...

NOSQL has become a very heated topic for large web-scale deployment where scalability and semi-struc (...)

clicks: 17900 17900 2012-05-14 2012-05-14 goto url (new window) horicky.blogspo... goto myNews tecnologia

A Hopefully Fair and Useful Comparison of Haskell Web Frameworks new ...

Recently there has been a lot of discussion and questions about the differences between the big thre (...)

clicks: 14447 14447 2012-05-13 2012-05-13 goto url (new window) softwaresimply.... goto myNews tecnologia

Retina graphics for your website new ...

retina.js is an open source script that makes it easy to serve high-resolution images to devices wit (...)

clicks: 14283 14283 2012-05-11 2012-05-11 goto url (new window) retinajs.com/ goto myNews tecnologia

What every programmer should know about memory, Part 1 new ...

In the early days computers were much simpler. The various components of a system, such as the CPU, (...)

clicks: 15636 15636 2012-05-10 2012-05-10 goto url (new window) lwn.net/Article... goto myNews tecnologia

The State Of HTML5 Video

HTML5 has entered the online video market, which is both exciting and challenging for developers in (...)

clicks: 6198 6198 2012-02-14 2012-02-14 goto url (new window) longtailvideo.c... goto myNews tecnologia

A Tour of Amazon's DynamoDB

Amazon's recent release of DynamoDB, a database whose name is inspired by Dynamo, the key-value data (...)

clicks: 5896 5896 2012-02-13 2012-02-13 goto url (new window) paperplanes.de/... goto myNews tecnologia

Google BigQuery Service: Big data analytics at Google speed

Rapidly crunching terabytes of big data can lead to better business decisions, but this has traditio (...)

clicks: 5546 5546 2011-11-30 2011-11-30 goto url (new window) googlecode.blog... goto myNews tecnologia

Video: CSS3 Secrets: 10 things you might not know about CSS3

A number of prominent front-end developers delivered helpful talks at this year's Fronteers 2011 con (...)

clicks: 6440 6440 2011-11-30 2011-11-30 goto url (new window) css.dzone.com/a... goto myNews tecnologia