OpenMathLib / OpenMathLib/OpenBLAS
OpenBLAS multi-thread using on NVIDIA tegra k1
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- Dominant language
- C
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Description
The program called openblas_set_num_threads(4) before calling dgemm function.
Meanwhile, I use top command to monitor CPU usage, I found only one core is running.
Otherwise, I call openblas_set_num_threads(1), the time of DGEMM elapsed is equal to openblas_set_num_threads(4);
Contributor guide
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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 reproducing the DGEMM comparison on the NVIDIA Tegra K1, checking openblas_set_num_threads(4) versus openblas_set_num_threads(1) while observing CPU usage with top. No files or tests are named; done means identifying why the requested threads do not improve execution and documenting or fixing the behavior with a reproducible validation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100