How to calculate the cost of calculations in CPU vs. cost of sending the data to GPU+performing calculations+getting data back?

StackOverflow https://stackoverflow.com/questions/4190391

Question

How to calculate the cost of calculations in CPU vs. cost of sending the data to GPU+performing calculations+getting data back?

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Solution

I can't see a quantitative, objective way to do this other than profiling each technique and determining for yourself which is faster - I assume time/speed is what you mean by "cost."

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