NVIDIA’s CUDA is a general purpose parallel computing platform and programming model that accelerates deep learning and other compute-intensive apps by taking advantage of the parallel ...

Most notably, the chipmaker announced a compiler source code enabling software developers to add new languages and architecture support to Nvidia’s CUDA parallel programming model.

PTX sits between higher-level GPU programming languages (like CUDA C/C++ or other language frontends) and the low-level machine code (streaming assembly, or SASS).