Disclaimer: I run a competitor to neanderthal called nd4j. A community member of ours made an implementation of core.matrix backed by nd4j a while back: https:

Disclaimer: I run a competitor to neanderthal called nd4j. A community member of ours made an implementation of core.matrix backed by nd4j a while back: https://github.com/ds923y/nd4clj https://github.com/ds923y/nd4clj It needs a bit of updating though. We support cpu and gpu cublas and arbitrary matrix operations. We have our own memory management engine among other things built in. This lib will also support automatic differentiation and sparse in the next few months.