.NET Parallel Programming

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

Parallel Extensions - .NET Parallel Programming

Mechanisms for Creating Tasks

June 3, 2009 Jun 3, 2009 06/3/09
Stephen Toub - MSFT
The core entity in the Task Parallel Library around which everything else revolves is System.Threading.Tasks.Task.  The most common way of creating a Task will be through the StartNew method on the TaskFactory class, a default instance of which is exposed through a static property on Task, e.g. var t = Task.Factory.StartNew(() => { &...

Tasks and Unhandled Exceptions

June 1, 2009 Jun 1, 2009 06/1/09
Stephen Toub - MSFT
Prior to the .NET Framework 2.0, unhandled exceptions were largely ignored by the runtime.  For example, if a work item queued to the ThreadPool threw an exception that went unhandled by that work item, the ThreadPool would eat that exception and continue on its merry way.  Similarly, if a finalizer running on the finalizer thread ...

ParallelOptions.MaxDegreeOfParallelism vs PLINQ’s WithDegreeOfParallelism

May 29, 2009 May 29, 2009 05/29/09
Stephen Toub - MSFT
We exert a good deal of effort ensuring that the APIs we provide are consistent within Parallel Extensions as well as with the rest of the .NET Framework.  This is from many angles, including behavior and general design, but also naming.  So when there are slight differences in naming, it raises questions.One occurrence of such a ...

.NET 4 Cancellation Framework

May 22, 2009 May 22, 2009 05/22/09
Mike Liddell
A very interesting addition to .NET 4 is a set of new types that specifically assist with building cancellation-aware applications and libraries. The new types enable rich scenarios for convenient and safe cancellation, and help simplify situations that used to be be difficult and error-prone and non-composable. The details of the new types ...