By installing JetPack, you should now be able to run CUDA and all the samples that come with it
STEP 1: To check if you have successfully intalled cuda - version should say CUDA {8.0,9.0,10.0 etc}
nvcc -V
STEP 2: To run a sample, from the home directory
cd ~/NVIDIA_CUDA-9.0_Samples/bin/aarch64/linux/release/
STEP 3: You should see a list of executable scripts for all the CUDA samples
./smokeParticles
You should see the example running! I noticed a frame rate of ~38fps for this example