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Multi-threading a Simple Hierarchical Planner to Estimate Performance

Alex J. Champandard

This article dives straight in to two of the hottest topics in game AI, creating a prototype hierarchical planning for multiple threads, using the Threaded Building Blocks library. In particular, you'll see how a task tree can be used to implement a simple planner — including the C++ sample. The benchmark results show expected performance improvement for various configurations of planning domains, depending on their ratio of parallel to sequential logic.

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