.NET Parallel Programming

All about Async/Await, System.Threading.Tasks, System.Collections.Concurrent, System.Linq, and more…

2008 - Page 2 of 6 - .NET Parallel Programming

Webcasts on Parallelism from France

September 2, 2008 Sep 2, 2008 09/2/08
Stephen Toub - MSFT
A few months back, Keith Yedlin and Steve Teixeira from the Parallel Computing Platform team were in France visiting with customers.  While there, they presented on our parallelism efforts, and with the help of the great team from Microsoft France, this presentation is now available online as a series of webcasts (the titles are all in ...

Feedback requested: Enumerating Concurrent Collections

August 12, 2008 Aug 12, 2008 08/12/08
Stephen Toub - MSFT
The June 2008 CTP of Parallel Extensions contained a first look at some of the work we're doing to augment the .NET Framework with a set of additional coordination data structures that aid in the development of highly concurrent applications.  This included two thread-safe collections, ConcurrentQueue<T> and ConcurrentStack<T>...

Most Common Performance Issues in Parallel Programs

August 12, 2008 Aug 12, 2008 08/12/08
Igor Ostrovsky - MSFT
Since the goal of Parallel Extensions is to simplify parallel programming, and the motivation behind parallel programming is performance, it is not surprising that many of the questions we receive about our CTP releases are performance-related.Developers ask why one program shows a parallel speedup but another one does not, or how to modify a ...

ParallelWhileNotEmpty

August 7, 2008 Aug 7, 2008 08/7/08
Stephen Toub - MSFT
Parallel Extensions includes the System.Threading.Parallel class, which provides several high-level loop replacement constructs like For and ForEach. In previous blog posts, we've taken a look at implementing other loops, such as for loops with arbitrary initialization, conditional, and update logic, range-based loops, and a parallel while.&...

Feedback requested: TaskManager shutdown, Fair scheduling

August 1, 2008 Aug 1, 2008 08/1/08
Stephen Toub - MSFT
One of the primary reasons we've released CTPs of Parallel Extensions is to solicit feedback on the design and functionality it provides.  Does it provide all of the APIs you need to get your job done?  Are there scenarios you wished the APIs supported and that you need to work around in klunky ways?  And so forth.  We've ...

Custom Loop with Arbitrary Initialization, Condition, and Update

July 27, 2008 Jul 27, 2008 07/27/08
Stephen Toub - MSFT
The Parallel.For loop construct provided by Parallel Extensions is focused on providing a parallel alternative to the common sequential pattern of a for loop that iterates over a range of numbers.  However, the for loop construct in a language like C# is not limited just to numbers and iterating over ranges.  It supports arbitrary ...

Useful Abstractions Enabled with ContinueWith

July 24, 2008 Jul 24, 2008 07/24/08
Stephen Toub - MSFT
In the June 2008 CTP of Parallel Extensions to the .NET Framework, we introduced the ContinueWith method on both Task and Future<T>.  ContinueWith is, in effect, a callback, very much like events in .NET.  With events, a causal action results in the event being raised, which by default triggers all of the delegates registered ...

Fork/Join parallelism with .NET CountdownEvent

June 21, 2008 Jun 21, 2008 06/21/08
cristina manu
A common asynchronous pattern in code today is the pattern known as fork/join parallelism. This typically manifests by starting n pieces of work and later joining with that work. The existing set of the .NET synchronization primitives does not offer a simple solution for handling this common scenario. It can be achieved, for example, by using...