HIP: Heterogeneous Interface for Portability is developed by AMD to program on AMD GPUs.
ROCm environment offers two automated methods for automatically converting CUDA projects to HIP: Hipify perl a Perl script you can run on the CUDA source code to convert it to HIP format and Hipify clang a preprocessor that operates from within the HIP/ Clang compiler tool chain, converting the code as a preliminary step within the compiler process.
The hipify perl script acts directly on the CUDA source code using a series of simple string replacements. Ex., (sed e ’s/cuda/hip/g’)
To convert a CUDA file (foo.cu , for example) to HIP format, enter the following after loading a ROCm module:
$ module load rocm/<version> $ hipify-perl foo.cu > new_foo.cpp
You can then compile the HIP ready . cpp file for the ROCm environment using the HIP/ Clang compiler provided in the ROCm installation:
$ hipcc new_foo.cpp
There are several other utility scripts available to support the porting of codes:
$ echo $(hipconfig --path) $ findcode.sh hipcc hipconfig hipconvertinplace.sh hip_embed_pch.sh hipexamine.sh hipify-perl roc-obj-extract finduncodep.sh hipcc_cmake_linker_helper hipconvertinplace-perl.sh hipdemangleatp hipexamine-perl.sh hipify-cmakefile hipvars.pm roc-obj-ls
for example:
$ hipify perl inplace <filename> It modifies the filename input inplace , replacing input with hipified output, save backup in . prehip file.
$ hipexamine-perl.sh <filename/directory> This script will scan a file/directory to determine which file/files contain CUDA code and how much of that code can be automatically hipified.
$ hipconvertinplace-perl.sh <directory> It converts all the related files that are located inside the directory
for more information see HIP/hip_programming_guide.md at develop · ROCm-Developer-Tools/HIP · GitHub, HIP/hip_porting_guide.md at develop · ROCm-Developer-Tools/HIP · GitHub, HIPIFY/README.md at master · ROCm-Developer-Tools/HIPIFY · GitHub