lmstudio-ai / lmstudio-ai/lmstudio-bug-tracker
Dual CPU hardware, LM Studio 0.3.16 detects only 1 CPU
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Description
LM Studio detects only 1 CPU on dual CPU server (2x AMD Epyc 9124).
Dual CPU issue persist on both Win11 Pro and Linux Ubuntu.
Dual CPU is detected by both OS, and Llamacpp can utilize both CPU.
Months ago, it detected dual CPU for a few minutes (Win11), but then glitched and from then on, only 1 CPU can be used. Performed reinstall, but that didn't solved issue.
Also, please add the support for AVX-512 instruction extension.
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 CPU detection behavior in LM Studio on the reported dual AMD Epyc 9124 server under Win11 Pro and Ubuntu, comparing it with llama.cpp. Done means both CPUs are detected and usable consistently, with the requested AVX-512 support status addressed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ubuntu
- Domain
- desktop, operating-systems, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100