I don’t know why but right now, k80, titan and titan xp’s outputs only differ at most 1e-6, but 1060 got a huge difference at most 0.5. Seems that 1060 I installed http://download.pytorch.org/whl/cu80/torch-0.2.0.post3-cp27-cp27m-manylinux1_x86_64.whl 1, and others are http://download.pytorch.org/whl/cu80/torch-0.2.0.post3-cp27-cp27mu-manylinux1_x86_64.whl . Can it produce such a huge difference?