AMD have released a tool which converts Nvidia's CUDA code to portable C++ code which works on both Nvidia and AMD cards! (x-post programming) : r/Amd
CUDA C++ Programming Guide
CppCon 2019: Gordon Brown “Efficient GPU Programming with Modern C++” - YouTube
Amazon.com: Hands-On GPU-Accelerated Computer Vision with OpenCV and CUDA: Effective techniques for processing complex image data in real time using GPUs eBook : Vaidya, Bhaumik: Kindle Store
Multi-GPU Programming with Standard Parallel C++, Part 1 | NVIDIA Technical Blog
CUDA Programming: Compile and Run CUDA C/C++ Programs