GDC 2009: OpenCL Havok wins the debate
By Charlie Demerjian, 6 April 2009
AT GDC A few days ago, AMD dropped a bomb on the GPGPU world by announcing a GPU-accelerated Havok implementation. It is technically nothing new, Nvidia teamed up with Havok years ago, but the 'how' side of the question means AMD just won the argument. The big thing that AMD did was code the Havok implementation in OpenCL. This means that it is a standard, and any other OpenCL supporting GPU, Nvidia, S3 or Intel can use it on their GPUs as well. As long as you have OpenCL drivers, you will have Havok GPU-accelerated physics. The part that is spectacular is that it was all done in a handful of weeks. A quarter ago, this didn't exist, and now you have a full Havok implementation on the GPU, written in a standards-compliant way. It wasn't all that fast, yet, but it did work seamlessly. Don't underestimate how big a deal this is, however. As soon as it is optimised correctly, you can parse the physics load between the CPU and GPU.
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