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If openmp is on the LLVM_ENABLE_PROJECTS list and offload is on LLVM_ENABLE_RUNTIMES list when using CLANG_ENABLE_BOOTSTRAP, then the runtimes will be configured before the openmp project. This will throw a cannot find libomp.so dependency error. Add omp as a dependency when this is the case. Update offload cmake for detection of LIBOMP_HAVE_VERSION_SCRIPT.
The LLVM/Offload Subproject
The Offload subproject aims at providing tooling, runtimes, and APIs that allow users to execute code on accelerators or other "co-processors" that may or may not match the architecture of their "host". In the long run, all kinds of targets are in scope of this effort, including but not limited to: CPUs, GPUs, FPGAs, AI/ML accelerators, distributed resources, etc.
The project is just starting and the design is still not ironed out. More content will show up here and on our webpage soon. In the meantime people are encouraged to participate in our meetings (see below) and check our development board as well as the discussions on Discourse.
Meetings
Every second Wednesday, 7:00 - 8:00am PT, starting Jan 24, 2024. Alternates with the OpenMP in LLVM meeting. invite.ics Meeting Minutes and Agenda