0xfiras commented on issue #13798: C++ generate wrong prediction results on GPU URL: https://github.com/apache/incubator-mxnet/issues/13798#issuecomment-453794900 I am facing the same issue right now, but my case is a bit different. I am training using the c++ API on the GPU. When I inspected the output values of the first batches, I can clearly see that the output is incorrect: negative prediction values after a relu. After a lot of printing of input and output, just to make sure I am not printing or editing the labels, I concluded that the problem is most probably from the C++ API, which brought me here. I switched to CPU, to check if I can reproduce the bug. And I did. Output from CPU is correct, i.e. positive. I stumbled upon this issue while investigating what I thought to be a differrent issue: when I print the *training* labels before and after a forward pass I get an occasional mismatch. I will get a single batch item have one of its labels flip from 0 to 1.
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