Features
- Flock simulation using tasks in order to keep busy all the cpu cores. It uses the Vista Pool Thread API to make a really simple wrap for send multiple tasks to the pool. The video shows how most of cpu cores (hardware threads) are not working under a heavy load of work with only one task in the pool. If the work is spread across multiple tasks, the video shows how all the cpu cores are busy.
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After seeing the gdc10 intel talk about tasks using the vista thread pool api, I wanted to give it a try. So, the objective of this test is just try the thread pool api that vista provides. I dont try to get a massive amount of geometry on screen, just have something cpu intensive and appealing like a flock simulation algorithm.
Controls
- Left click plus mouse movement to rotate the camera around the flock.
- Right click plus mouse move up/down to zoom in/out.
Technology
- C++
- Boost
- Opengl 2.0
- Qt
- Freeglut
- Glew
- Microsoft Visual Studio 2008 Professional Edition
- Subversion
- Redmine
- Windows 7 x64
Develop/Build/Test Machine Specs
- Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
- 3072 Mb RAM
- Nvidia GeForce GTX 260
- Nvidia Driver Version: 196.21 WHQL
- Microsoft Windows 7 Professional x64
Resources
- Vista Thread Pool API from msdn
- “Steering Behaviors For Autonomous Characters” by Craig Reynolds
- “Task-based Multithreading — How to Program for 100 Cores” by Ron Fosner
- “Trefoil knot” from Wikipedia