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by exe34
781 days ago
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They can be made to be deterministic on CPU, but not on GPU (unless you want to give up on the speedup). With floating points, things like addition are not associative: a + (b + c) is not the same as (a + b) + c. So on CPU, you can make sure the order is always the same and the result is deterministic. On GPU, the order is not guaranteed, and thus the output is not deterministic. This is because of the |
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