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[GH-ISSUE #6131] Support split-mode=row for nvlink optimization #3829

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opened 2026-04-12 14:39:51 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-04-12 14:39:51 -05:00
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Originally created by @defaultsecurity on GitHub (Aug 1, 2024).
Original GitHub issue: https://github.com/ollama/ollama/issues/6131

What is the issue?

I have read every issue and commit related to Nvlink and I seem to be running in circles.

  • Is there a way to activate --split-mode=row and get the benefits of NVLink?
  • What about --tensor_split?
  • Are there any other options or features that leverage NVLink?

I have found split-mode in this file:
ff7c9060ec/llm/ext_server/server.cpp (L2345-L2367)

OS

Linux

GPU

Nvidia

CPU

Intel

Ollama version

0.3.2

Originally created by @defaultsecurity on GitHub (Aug 1, 2024). Original GitHub issue: https://github.com/ollama/ollama/issues/6131 ### What is the issue? I have read every issue and commit related to Nvlink and I seem to be running in circles. - Is there a way to activate --split-mode=row and get the benefits of NVLink? - What about --tensor_split? - Are there any other options or features that leverage NVLink? _I have found split-mode in this file:_ https://github.com/ollama/ollama/blob/ff7c9060ec62fc3ce5fdc9cbec0788d46d908d81/llm/ext_server/server.cpp#L2345-L2367 ### OS Linux ### GPU Nvidia ### CPU Intel ### Ollama version 0.3.2
GiteaMirror added the feature requestnvidia labels 2026-04-12 14:39:51 -05:00
GiteaMirror commented 2026-04-12 14:39:52 -05:00
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@dhiltgen commented on GitHub (Aug 2, 2024):

We automatically calculate the tensor split based on available VRAM on the GPUs, however we do not currently expose a way to change the split mode, and always use layer mode.

<!-- gh-comment-id:2266170693 --> @dhiltgen commented on GitHub (Aug 2, 2024): We automatically calculate the tensor split based on available VRAM on the GPUs, however we do not currently expose a way to change the split mode, and always use layer mode.
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Reference: github-starred/ollama#3829
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