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Task Parallel Library - TPL.Net Framework 3.5 See TechEd 2008 VS2010 with.Net 4.0 Language Extensions Lambda Expressions C#, VB, F#, C++

From for to Parallel.For for (int i=0; i<100; i++) { int x = i + i; } Parallel.For(0, 100, i => { int x = i + i; });

C++ parallel_for parallel_for(0, 100, [&] i { int x = i + i; });

Visual Studio 2010 Multi-Core Programming Tasks Agents Parallel Loops Parallel Algorithms Parallel Replacement for STL Seamless Task Usage

Task Oriented Design Modify Write Open Modify Scan

PLINQ – Parallel LINQ

VS2010 Demo

Keep an eye for… Shared are Globals Parallel Loops are not loops Define data as Loop internal Race Conditions are still here Locks!! I/O – Disk, Network, etc.

VS2010 Demo

Visual Studio Parallel Debugger Parallel Task List Parallel Task Stack Built-in Profiler

Parallel Pattern Library Resource Manager Task Scheduler Task Parallel Library Task Parallel Library PLINQ Managed Library Native Library Key: Threads Operating System Concurrency Runtime Programming Models Agents Library Agents Library ThreadPool Task Scheduler Resource Manager Data Structures Integrated Tooling Tools Parallel Debugger Toolwindows Parallel Debugger Toolwindows Profiler Concurrency Analysis Profiler Concurrency Analysis Programming Models Concurrency Runtime

Advanced Parallel In VS2010 Agents – Resource Owners Task Groups Task Cancellation Task Cleanup (CancelIo)

VS2010 Demo

Hints for the future us/devlabs/dd aspx us/devlabs/dd aspx AXUM – Language for parallel computing STM.Net - Software Transactional Memory for concurrent memory separation Spec Explorer – Graphical analysis of software behavior … and more

A bit nostalgia TechEd 2008 Israel

Do we really want Parallel Code? Do users even care?

Change In Mindset Everything is stopped. Waiting for the photographer Everyone is working independently

Developers are writing functions Developers are managing tasks

Doing things the way we always have Things are going to be different