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The CUDA Occupancy Calculator is a programmer tool that allows you to compute the multiprocessor occupancy of a GPU by a given CUDA kernel.  The multiprocessor occupancy is the ratio of active warps to the maximum number of warps supported on a multiprocessor of the GPU, and is helpful in determining how efficient the kernel will be on the GPU .

Download it from the CUDA page and discuss it in the CUDA forum.

Posted on 03/22/2007