Candidate Excel Functions for GPU acceleration [closed]

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I'm currently looking into writing an OpenCL Excel plugin. This would expo开发者_运维问答se a set of functions that offer calculations to be performed on the GPU from Excel. As a proof of concept I've written an Array-sum kernel and exposed this successfully. It works well, having no noticeable latency introduced (the entire array sum for 5k elements takes about 7ms start to finish).

My question is, what other candidate functions would you think would be useful in this context. I've got some ideas for Prefix Sum and Mersenne Prime kernels.

Al