oneapi-src / oneapi-src/level-zero
write a tool using level0 loadable through LD_PRELOAD
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- Dominant language
- C++
- Stars
- 335
- Forks
- 140
- Avg merge
- 12h 32m
- Merged PRs (30d)
- 5
Description
I tried to write a simple tool that I can load with LD_PRELOAD (in the spirit of MPI tools for example, or OpenCL interposers).
It seems to initialize OK but it doesn't get called.
One problem is that I can't get to the device handles that the runtime initializes, however the level0 spec seems to imply that I should be able to open the device again.
Code attached. Is this hopeless? Seems like there should be a way to have third-party tools invoked.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the attached tool.cpp.txt and the Level Zero loader and device-handle documentation. Reproduce the LD_PRELOAD initialization and call behavior, then establish whether a supported third-party tool invocation path exists and document the required behavior or limitation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100