If you have CUDA v9.2+ installed and NVIDIA-compatible hardware, then your dependency declaration will look like:

As of now, the for the CUDA versions can be one of nd4j-cuda-9.0, or nd4j-cuda-10.0.

Otherwise you will need to use the native implementation of ND4J as a CPU backend:

If you are developing your project on multiple operating systems/system architectures, you can add to the end of your artifactId which will download binaries for most major systems.

See our page on .

Check the NVIDIA guides for instructions on setting up CUDA on the NVIDIA website.