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Wednesday, March 16, 2005
Unreal 3 Multithreading Interview
9:00 AM | Marcus Albers | Comment on this story

Tech website AnandTech has posted an interview with Epic Games' Tim Sweeney about the more technical side of Unreal Engine 3.

The article explores the fact that Unreal Engine 3 is going to be one of the first multithreaded first person shooter engines. It goes on the explore the benefits of multiprocessor support, multicore CPU support, and OpenMP, an open standard for multiprocessor support in programs.

There are two parts to implementing multithreading in an application. The first part is launching the threads and handing data to them; the second part is making the appropriate portions of your 500,000-line codebase thread-safe. OpenMP solves only the first problem. But that's the easy part - any idiot can launch lots of threads and hand data to them. Writing thread-safe code is the far harder engineering problem and OpenMP doesn't help with that.
Head over to AnandTech's website to check out the article. Fair warning: the article is very technical in nature.

The Quest for More Processing Power
Epic Games

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