SciSharp / SciSharp/LLamaSharp

[BUG]: Not loading cuda backend on laptop

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#990 10 comments 2 reactions 0 assignees View on GitHub

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do not close good first issue help wanted stale
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Description

Description

on my laptop with a gtx 1060 in it, i have the cpu backend and the cuda backend installed. However the native all log does not show it even loading cuda, but instead shows it trying to load vulkan (not installed) and then eventually defaulting to avx2 and using cpu only. It also allows me to offload gpu layers, but never goes into the gpu buffer.

Reproduction Steps

https://pastebin.com/TmsUg95V this is the pastebin log

Environment & Configuration
  • Operating system: Windows 10
  • .NET runtime version: 7 (and 8 too)
  • LLamaSharp version: 19
  • CUDA version (if you are using cuda backend): 11
  • CPU & GPU device: Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz

GTX 1060 6GB

Known Workarounds

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the linked Pastebin native log and the CUDA, Vulkan, and CPU backend loading behavior in LLamaSharp v19 on Windows with .NET 7 or 8. Reproduce the reported GTX 1060 configuration and determine why CUDA is skipped; done means the CUDA backend loads and GPU layers use the GPU buffer instead of falling back to Vulkan or AVX2 CPU execution.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
ai
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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