On Dienstag 09 Juni 2009, Chris Heuser wrote: > Hey everybody, > > I know that when a call is made to a CUDA kernel, control immediately > returns to the calling function or program. But if I then immediately call > a memcpy from the changed gpu array to an array on the host, will the call > wait for the kernel to finish before executing the memcpy?
It will. Memory transfers don't overlap with kernel execution *within the same stream*. Andreas
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