ecd8d61126
Add the initial Context handle API to liboffload:
- olCreateContext / olDestroyContext
- olGetContextInfo / olGetContextInfoSize
- OL_ERRC_INVALID_CONTEXT error code
- OL_CONTEXT_INFO_{NUM_DEVICES,DEVICES,PLATFORM} queries
This is the first patch in a series. I decided to split the original
change into multiple smaller PRs to make the review process faster and
more manageable.
This patch introduces context management functions, but the context
handle is not used anywhere yet. The following patches will extend the
API to use contexts in:
``` c
ol_result_t olMemAlloc(ol_context_handle_t, ol_device_handle_t, ol_alloc_type_t, size_t, void**);
ol_result_t olMemFree(ol_context_handle_t, void*);
ol_result_t olGetMemInfo(ol_context_handle_t, const void*, ol_mem_info_t, size_t, void*);
ol_result_t olGetMemInfoSize(ol_context_handle_t, const void*, ol_mem_info_t, size_t*);
ol_result_t olCreateQueue(ol_context_handle_t, ol_device_handle_t, ol_queue_handle_t*);
ol_result_t olCreateProgram(ol_context_handle_t, ol_device_handle_t, const void*, size_t, ol_program_handle_t*);
```
You can also take a look at #201398, which contains the first version of
the complete change. I'm cleaning it up as I go, so the patches in this
series are not a direct 1:1 split of that PR.
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| .. | ||
| ci | ||
| cmake | ||
| docs | ||
| include | ||
| liboffload | ||
| libomptarget | ||
| plugins-nextgen | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| CMakeLists.txt | ||
| Maintainers.md | ||
| README.md | ||
| README.txt | ||
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.
For OpenMP offload users, the project is ready and fully usable. The final API design is still under development. 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