I have just downloaded the latest OpenCL SDK (1.5) and found that it doesn't work with my hardware. It seems that the SDK requires SSE 4.1 or higher. According to CPU-Z, my Intel Celeron M 530 only provides 'MMX, SSE (1, 2, 3, 3S), EM64T'.
Will an earlier version of the OpenCL SDK work with this older hardware, and if so where can I download it? It doesn't matter how fast it runs as I just want to experiment really.
Otherwise do I have any other options? I assume I can't use the AMD or NVidia SDK's unless I have their hardware. Is there a pure software implementation somewhere?