Comments (1)
No; GPU-based operations often are slower than their CPU-based counterparts for small arrays because of the limited communication bandwidth between GPU memory and the CPU. If you increase the length of the input array by some suitable amount, you should see that GPU-based operation run faster than the CPU-based one; with a GTX 460, I observe superior GPU performance for N = 4096.
from scikit-cuda.
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from scikit-cuda.