OpenMathLib / OpenMathLib/OpenBLAS
Multithreaded Programming using OpenBLAS
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- Dominant language
- C
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Description
I want to create 3 threads which are using gemm function with OpenBLAS.
Thread 1 - core affinity with CPU core 1 (openblas_set_num_threads(1))
Thread 2 - core affinity with CPU core 2,3 (openblas_set_num_threads(2))
Thread 3 - core affinity with CPU core 4,5,6 (openblas_set_num_threads(3))
Do those threads run at once without editing any codes of your library?
https://github.com/xianyi/OpenBLAS/wiki/faq#multi-threaded
I saw the link.
If I use the USE_THREAD and USE_LOCKING environment variables, will it behave like the above situation?
If that is correct, how do I use them?
Contributor guide
No contributing guide indexed for this repository
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 with the OpenBLAS FAQ section linked in the issue, then verify how USE_THREAD, USE_LOCKING, openblas_set_num_threads, and CPU affinity relate to concurrent gemm calls. Done means providing a clear answer about whether the three described threads can run concurrently and documenting the required usage.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- performance
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100