I used Colt. I'd be interested to see if Clojure parallelization and under-the-hood optimizations could match vectorization performance. Note, I haven't run off

I used Colt. I'd be interested to see if Clojure parallelization and under-the-hood optimizations could match vectorization performance. Note, I haven't run official benchmarks yet. My comparisons have been more like "back propagation and gradient checking took about the same length of time in both".