AMD Betting Future On the GPGPU
arcticstoat writes with an interview in bit-tech "AMD's manager of Fusion software marketing Terry Makedon revealed that 'AMD as a company made a very, very big bet when it purchased ATI: that things like OpenCL will succeed. I mean, we're betting everything on it.' He also added: 'I'll give you the fact that we don't have any major applications at this point that are going to revolutionize the industry and make people think "oh, I must have this," granted, but we're working very hard on it. Like I said, it's a big bet for us, and it's a bet that we're certain about.'"
If you look at that AMD Fusion design, they have already addressed this. The memory will be shared between CPU and GPU, and the 'transfer' from CPU to GPU will simply be a pointer exchange. In fact, Fusion is doing away with the concept of a GPU being a discrete device - the GPU that is presented to the OS is really only a virtual device wrapping a bunch of the vector processing units.