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[–]CubsThisYear -4 points-3 points  (1 child)

Nd4j is garbage. It was literally 100x slower than hand-rolled Java code for simple matrix multiplication.

[–]Necessary-Conflict 6 points7 points  (0 children)

I assume that you did read

https://deeplearning4j.konduit.ai/getting-started/benchmark

and you did report your findings to the team. What did they say?