HIP's key features include:
- HIP is very thin and has little or no performance impact over coding directly in CUDA mode.
- HIP allows coding in a single-source C++ programming language including features such as templates, C++11 lambdas, classes, namespaces, and more.
- HIP allows developers to use the "best" development environment and tools on each target platform.
- The HIPIFY tools automatically convert source from CUDA to HIP.
Developers can specialize for the platform (CUDA or AMD) to tune for performance or handle tricky cases.
New projects can be developed directly in the portable HIP C++ language and can run on either NVIDIA or AMD platforms. Additionally, HIP provides porting tools which make it easy to port existing CUDA codes to the HIP layer, with no loss of performance as compared to the original CUDA application. HIP is not intended to be a drop-in replacement for CUDA, and developers should expect to do some manual coding and performance tuning work to complete the port.
HIP github page: https://github.com/ROCm-Developer-Tools/HIP
and credits for the video: Intro to HIP Programming (Noel Chalmers).