AOMP is AMD's staging area or playground for their GPU offloading patches until they are upstreamed within LLVM itself. AOMP isn't to be confused with AOCC as AMD's Optimizing C/C++ Compiler focused on their Zen-enriched downstream of LLVM/Clang for the CPU side of the house. With AOMP 16.0-0, they have re-based against the latest LLVM upstream code as of last week while also adding a few new Radeon offloading patches.
AOMP 16.0-0 captures the upstream LLVM 16 Git state as of 14 September. AOMP also pulls in the relevant ROCm components it deals with too sans the AMDGPU/AMDKFD kernel code. There are only two new AMD-led changes with AOMP 16.0-0:
- Adds new flag -fopenmp-target-fast to group enable a set of OpenMP target optimizations.
- Enhancements and bug fixes for No-Loop and cross-team reduction support.
The new -fopenmp-target-fast option sounds interesting in the name of performance. AOMP 16.0-0 sources as well as binaries for Ubuntu / SUSE / CentOS (RHEL) Linux systems can be found via GitHub .