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openvino: driver setup, CI split, thread safety, and NPU optimizations (#21944)

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* Thread safety per request only

* Fix ROPE yarn case

* Fix sticky stateful config

* Use i4/i8 directly for symmetric quant

* Use weightless caching

* Add WeightlessCacheAttribute to reduce NPU memory usage

* Gelu tanh support (#125)

* Imrope support (#126)

* fix(openvino): explicit ov::Tensor frees in ggml_backend_openvino_free

* add GPU,NPU support in OV Dockerfile

* add build-openvino.yml ci

* Fix sticky stateful config

* add concurrency to ov-gpu ci runs. Move OV CI to build-openvino.yml

* fix thread-safety of shared runtime context

* rope type abstraction for frontend translations

* fix editorconfig

---------

Co-authored-by: Mustafa Cavus <mustafa.cavus@intel.com>
Co-authored-by: Dan Hoffman <dhoff749@gmail.com>
Co-authored-by: Ravi Panchumarthy <ravi.panchumarthy@intel.com>
This commit is contained in:
Zijun Yu
2026-04-21 23:58:34 +08:00
committed by GitHub
parent 606fa42f5d
commit 52f1096f21
21 changed files with 823 additions and 544 deletions
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docs/backend/OPENVINO.md
-3
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@@ -244,7 +244,6 @@ build\ReleaseOV\bin\llama-cli.exe -m "C:\models\Llama-3.2-1B-Instruct-Q4_0.gguf"
- `-fa 1` is required when running llama-bench with the OpenVINO backend.
- `GGML_OPENVINO_STATEFUL_EXECUTION=1 GGML_OPENVINO_DEVICE=GPU ./llama-bench -fa 1`
- `llama-server` with OpenVINO backend supports only one chat session/thread, when `GGML_OPENVINO_STATEFUL_EXECUTION=1` is enabled.
- For Intel GPU, NPU detection in containers, GPU, NPU user-space drivers/libraries must be present inside the image. We will include in a future PR. Until then, you can use this reference Dockerfile: [openvino.Dockerfile](https://github.com/ravi9/llama.cpp/blob/ov-docker-update/.devops/openvino.Dockerfile)
> [!NOTE]
> The OpenVINO backend is actively under development. Fixes are underway, and this document will continue to be updated as issues are resolved.
@@ -274,8 +273,6 @@ docker build --build-arg http_proxy=$http_proxy --build-arg https_proxy=$https_p
Run llama.cpp with OpenVINO backend Docker container.
Save sample models in `~/models` as [shown above](#3-download-sample-model). It will be mounted to the container in the examples below.
> [!NOTE]
> Intel GPU, NPU detection in containers will be included in a future PR. Until then, you can use this reference Dockerfile: [openvino.Dockerfile](https://github.com/ravi9/llama.cpp/blob/ov-docker-update/.devops/openvino.Dockerfile).
```bash
# Run Docker container