HIP compiler driver (hipcc)

Table of Contents

• hipcc
  • Environment Variables
  • Usage
  • Building
  • Testing
  • Linux
  • Windows

hipcc

hipcc is a compiler driver utility that will call clang or nvcc, depending on target, and pass the appropriate include and library options for the target compiler and HIP infrastructure. Historically, hipcc was provided as a script in the HIP repo ( https://github.com/ROCm-Developer-Tools/HIP/blob/main/bin/hipcc ). The hipcc provided in this project provides the same functionality, but is a binary rather than a script. At some point in the future, the hipcc script will be deprecated and ultimately removed from the HIP repo.

hipcc will pass-through options to the target compiler. The tools calling hipcc must ensure the compiler options are appropriate for the target compiler.

Environment Variables

The environment variable HIP_PLATFORM may be used to specify amd/nvidia/spirv:

• HIP_PLATFORM='amd' or HIP_PLATFORM='nvidia' or HIP_PLATFORM='spirv'.
• If HIP_PLATFORM is not set, then hipcc will attempt to auto-detect based on if nvcc is found.

Other environment variable controls:

• HIP_PATH : Path to HIP directory, default is one dir level above location of hipcc.
• CUDA_PATH : Path to CUDA SDK (default /usr/local/cuda). Used on NVIDIA platforms only.
• HSA_PATH : Path to HSA dir (defaults to ../../hsa relative to abs_path of hipcc). Used on AMD platforms only.
• HIP_ROCCLR_HOME : Path to HIP/ROCclr directory. Used on AMD platforms only.
• HIP_CLANG_PATH : Path to HIP-Clang (default to ../../llvm/bin relative to hipcc's abs_path). Used on AMD platforms only.

hipcc: usage

It is possible that there are multiple HIP implementations on a single system. To avoid guessing it is recommended to set HIP_PATH to the install location of the HIP implementation you wish to use.

The built executables can be used the same way as the hipcc/hipconfig perl scripts. To use the newly built executables from the build folder use ./ in front of the executable name - Example:

./hipconfig --help
./hipcc --help
./hipcc --version
./hipconfig --full

when the excutables are copied to /opt/rocm/hip/bin or hip/bin. The ./ is not required as the HIP path is added to the envirnoment variables list.

hipcc: building

mkdir build
cd build

cmake ..

make -j

The hipcc and hipconfig executables are created in the current build folder. These executables need to be copied to /opt/rocm/hip/bin folder location. Packaging and installing will be handled in future releases.

hipcc: testing

Currently hipcc/hipconfig executables are tested by building and executing HIP tests. Seperate tests for hipcc/hipconfig is currently not planned.