LLAMA_CPP plugin - basic version with direct file loading

.github/workflows/llama_cpp_plugin_build_and_test.yml

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+name: llama_cpp_plugin_build_and_test
+
+on:
+  pull_request:
+    paths:
+      - 'modules/llama_cpp_plugin/**'
+
+jobs:
+  build_ubuntu20:
+    runs-on: ubuntu-20.04-8-cores
+    steps:
+      - name: Setup cmake
+        uses: jwlawson/actions-setup-cmake@v1.14
+        with:
+          cmake-version: '3.24.x'
+
+      - name: Checkout openvino_contrib
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          path: openvino_contrib
+
+      - name: Checkout openvino
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          repository: openvinotoolkit/openvino
+          path: openvino
+
+      - name: CMake - configure
+        run: cmake -B build -DCMAKE_BUILD_TYPE=Release -DOPENVINO_EXTRA_MODULES=${{ github.workspace }}/openvino_contrib/modules/llama_cpp_plugin -DENABLE_TESTS=ON -DENABLE_FUNCTIONAL_TESTS=ON -DENABLE_PLUGINS_XML=ON -DENABLE_LLAMA_CPP_PLUGIN_REGISTRATION=ON openvino
+
+      - name: CMake - build
+        run: cmake --build build -j`nproc` -- llama_cpp_plugin llama_cpp_e2e_tests
+
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: build_artifacts
+          path: ${{ github.workspace }}/openvino/bin/intel64/Release/
+
+  test_ubuntu20:
+    needs: build_ubuntu20
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: build_artifacts
+          path: ${{ github.workspace }}/binaries
+
+      - name: Prepare test data - checkout llama.cpp repo
+        uses: actions/checkout@v4
+        with:
+          repository: ggerganov/llama.cpp
+          path: llama.cpp
+
+      - name: Prepare test data - convert test model files
+        run: |
+          pip install -r llama.cpp/requirements/requirements-convert-hf-to-gguf.txt
+          huggingface-cli download gpt2 model.safetensors tokenizer.json tokenizer_config.json vocab.json config.json merges.txt --local-dir hf_gpt2
+          mkdir -p ${{ github.workspace }}/test_data
+          python3 llama.cpp/convert-hf-to-gguf.py hf_gpt2 --outtype f32 --outfile ${{ github.workspace }}/test_data/gpt2.gguf
+
+      - name: Install libtbb2
+        run: |
+          wget https://storage.openvinotoolkit.org/dependencies/thirdparty/linux/oneapi-tbb-2021.2.4-lin.tgz
+          mkdir -p tbb
+          tar xvzf oneapi-tbb-2021.2.4-lin.tgz
+
+      - name: Run E2E tests
+        run: |
+          chmod +x ${{ github.workspace }}/binaries/llama_cpp_e2e_tests
+          export LD_LIBRARY_PATH=${{ github.workspace }}/binaries:${{ github.workspace }}/tbb/lib
+          ${{ github.workspace }}/binaries/llama_cpp_e2e_tests

modules/llama_cpp_plugin/.clang-format

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+BasedOnStyle: Google
+IndentWidth: 4
+UseTab: Never
+ColumnLimit: 120
+
+Language: Cpp
+Standard: Cpp11
+
+AccessModifierOffset: -4
+AlignConsecutiveMacros: true
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: Empty
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakBeforeMultilineStrings: false
+BinPackArguments: false
+BinPackParameters: false
+CommentPragmas: '^#'
+DerivePointerAlignment: false
+FixNamespaceComments: true
+IndentCaseLabels: false
+IndentPPDirectives: AfterHash
+ForEachMacros:
+  - foreach
+  - FOREACH_CHILD

modules/llama_cpp_plugin/CMakeLists.txt

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+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.13)
+
+project(LlamaCppPlugin)
+
+find_package(OpenVINODeveloperPackage REQUIRED)
+
+ov_option(ENABLE_LLAMA_CPP_PLUGIN_REGISTRATION "Enables registration of LLAMA_CPP plugin" OFF)
+
+add_subdirectory(src)
+
+FetchContent_Declare(
+    llama_cpp
+    GIT_REPOSITORY https://github.com/ggerganov/llama.cpp
+    GIT_TAG        b2417
+    )
+
+FetchContent_MakeAvailable(llama_cpp)
+
+if(ENABLE_TESTS)
+    include(CTest)
+    enable_testing()
+    add_subdirectory(tests/e2e)
+endif()
+
+# install
+
+if(OpenVINODeveloperPackage_FOUND)
+    ov_cpack(LlamaCppPlugin)
+endif()

modules/llama_cpp_plugin/README.md

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+### Build instructions
+
+This plugin should be built in the same fashion as the rest of the modules:
+
+1. Check out the OpenVINO repository proper (https://github.com/openvinotoolkit/openvino)
+2. Configure the CMake build of the OpenVINO repository, making sure to point the corresponding CMake option to the location of the `openvino_contrib` repository. The command below, executed in the `openvino` repo root, will configure the build so that the modules other `llama_cpp_plugin` module will not be built to save build time - adjust the `-DBUILD_*` options if you need the other modules as well.
+
+```bash
+cmake -B build -DCMAKE_BUILD_TYPE=Release -DOPENVINO_EXTRA_MODULES=<PATH_TO_YOUR_CHECKED_OUT_OPENVINO_CONTRIB>/modules/llama_cpp_plugin -DENABLE_PLUGINS_XML=ON -DENABLE_PLUGIN_REGISTRATION=ON .
+```
+
+3. Build the plugin either as part of the complete openvino build by executing:
+
+```bash
+cmake --build build --parallel
+```
+
+or separately by specifying only the `llama_cpp_plugin` target:
+
+```bash
+cmake --build build --parallel -- llama_cpp_plugin
+```
+
+4. Now you can utilize the built `libllama_cpp_plugin.so` as a regular OV plugin with the device name `"LLAMA_CPP"` to directly load GGUF files and infer them using OV API with llama.cpp execution under the hood. Make sure that the plugin is discoverable by the OV runtime (e.g. by putting the built `libllama_cpp_plugin.so`, `libllama.so` and the autogenerated `plugins.xml` from the built location to your OV binaries location, or by setting `LD_LIBRARY_PATH` appropriately).
+
+#### Example of LLM inference code
+
+```C++
+
+ov::Core core;
+auto model = core.compile_model("model.gguf", "LLAMA_CPP")
+auto input_ids = ov::Tensor(ov::element::Type_t::i64, {1, 128});
+auto position_ids = ov::Tensor(ov::element::Type_t::i64, {1, 128});
+std::iota(position_ids.data<int64_t>(), position_ids.data<int64_t>() + position_ids.get_size(), 0);
+
+auto infer_request == model.create_infer_request();
+infer_request.set_tensor("input_ids", input_ids);
+infer_request.set_tensor("position_ids", position_ids);
+infer_request.infer();
+
+size_t vocab_size = lm.get_tensor("logits").get_shape().back();
+float* logits = lm.get_tensor("logits").data<float>() + (input_ids_tensor.get_size() - 1) * vocab_size;
+int64_t out_token = std::max_element(logits, logits + vocab_size) - logits;
+```
+
+The models obtained by the `.compile_model` call with the `LLAMA_CPP` plugin expose two inputs (`input_ids` and `position_ids`) and a single output (`logits`) with equivalent meaning to the corresponding arguments in the LLM model representations in the huggingface `transformers` repository. The `attention_mask` and `beam_idx` inputs may be set as well, but will have no effect on the execution.
+
+Only batch size of 1 is currently supported.
+
+
+
+

modules/llama_cpp_plugin/include/compiled_model.hpp

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+// Copyright (C) 2024 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef LLAMA_CPP_COMPILED_MODEL_HPP
+#define LLAMA_CPP_COMPILED_MODEL_HPP
+
+#include "llama.h"
+#include "openvino/runtime/icompiled_model.hpp"
+#include "openvino/runtime/isync_infer_request.hpp"
+
+namespace ov {
+namespace llama_cpp_plugin {
+class LlamaCppSyncInferRequest;
+class LlamaCppPlugin;
+class LlamaCppState;
+class LlamaCppModel : public ICompiledModel {
+public:
+    LlamaCppModel(const std::string& gguf_fname, const std::shared_ptr<const IPlugin>& plugin);
+    /**
+     * @brief Export compiled model to stream
+     *
+     * @param model output stream
+     */
+    virtual void export_model(std::ostream& model) const override;
+
+    /**
+     * @brief Returns runtime model
+     *
+     * @return OpenVINO Model which represents runtime graph
+     */
+    virtual std::shared_ptr<const ov::Model> get_runtime_model() const override;
+
+    /**
+     * @brief Allows to set property
+     *
+     * @param properties new plugin properties
+     */
+    virtual void set_property(const ov::AnyMap& properties) override;
+
+    /**
+     * @brief Returns property
+     *
+     * @param name Property name
+     *
+     * @return Property value
+     *              virtual std::shared_ptr<ov::ISyncInferRequest> create_sync_infer_request() const override;
+     **/
+    virtual ov::Any get_property(const std::string& name) const override;
+    virtual const std::vector<ov::Output<const ov::Node>>& inputs() const override;
+    virtual const std::vector<ov::Output<const ov::Node>>& outputs() const override;
+    virtual ~LlamaCppModel();
+
+protected:
+    /**
+     * @brief Method creates infer request implementation
+     *
+     * @return Sync infer request
+     */
+    virtual std::shared_ptr<ov::ISyncInferRequest> create_sync_infer_request() const override;
+
+private:
+    gguf_context* m_gguf_ctx = nullptr;
+    std::string m_gguf_fname;
+
+    llama_model* m_llama_model_ptr = nullptr;
+    llama_context* m_llama_ctx = nullptr;
+    std::shared_ptr<ov::Model> m_fake_model;
+
+    std::vector<ov::Output<const ov::Node>> m_fake_inputs;
+    std::vector<ov::Output<const ov::Node>> m_fake_outputs;
+
+    friend class ov::llama_cpp_plugin::LlamaCppSyncInferRequest;
+    friend class ov::llama_cpp_plugin::LlamaCppState;
+};
+}  // namespace llama_cpp_plugin
+}  // namespace ov
+
+#endif  // LLAMA_CPP_COMPILED_MODEL_HPP

modules/llama_cpp_plugin/include/infer_request.hpp

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+// Copyright (C) 2024 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef LLAMA_CPP_INFER_REQUEST_HPP
+#define LLAMA_CPP_INFER_REQUEST_HPP
+
+#include "compiled_model.hpp"
+#include "openvino/openvino.hpp"
+
+namespace ov {
+namespace llama_cpp_plugin {
+
+class LlamaCppSyncInferRequest : public ISyncInferRequest {
+public:
+    explicit LlamaCppSyncInferRequest(const std::shared_ptr<const LlamaCppModel>& compiled_model);
+    virtual ~LlamaCppSyncInferRequest(){};
+
+    virtual void set_tensors_impl(const ov::Output<const ov::Node> port,
+                                  const std::vector<ov::SoPtr<ov::ITensor>>& tensors) override;
+
+    virtual void infer() override;
+    virtual std::vector<ov::ProfilingInfo> get_profiling_info() const override;
+    virtual std::vector<ov::SoPtr<ov::IVariableState>> query_state() const override;
+
+private:
+    std::shared_ptr<const LlamaCppModel> m_compiled_model_ptr;
+};
+
+}  // namespace llama_cpp_plugin
+};  // namespace ov
+
+#endif /* LLAMA_CPP_INFER_REQUEST_HPP */

modules/llama_cpp_plugin/include/plugin.hpp

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+// Copyright (C) 2018-2023 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef LLAMA_CPP_PLUGIN_HPP
+#define LLAMA_CPP_PLUGIN_HPP
+
+#include "openvino/runtime/iplugin.hpp"
+
+namespace ov {
+namespace llama_cpp_plugin {
+class LlamaCppPlugin : public IPlugin {
+public:
+    LlamaCppPlugin();
+    virtual std::shared_ptr<ov::ICompiledModel> compile_model(const std::shared_ptr<const ov::Model>& model,
+                                                              const ov::AnyMap& properties) const override;
+
+    virtual std::shared_ptr<ov::ICompiledModel> compile_model(
+        const std::shared_ptr<const ov::Model>& model,
+        const ov::AnyMap& properties,
+        const ov::SoPtr<ov::IRemoteContext>& context) const override;
+
+    virtual void set_property(const ov::AnyMap& properties) override;
+
+    virtual ov::Any get_property(const std::string& name, const ov::AnyMap& arguments) const override;
+
+    virtual ov::SoPtr<ov::IRemoteContext> create_context(const ov::AnyMap& remote_properties) const override;
+
+    virtual ov::SoPtr<ov::IRemoteContext> get_default_context(const ov::AnyMap& remote_properties) const override;
+
+    virtual std::shared_ptr<ov::ICompiledModel> import_model(std::istream& model,
+                                                             const ov::AnyMap& properties) const override;
+
+    virtual std::shared_ptr<ov::ICompiledModel> compile_model(const std::string& fname,
+                                                              const ov::AnyMap& properties) const override;
+
+    virtual std::shared_ptr<ov::ICompiledModel> import_model(std::istream& model,
+                                                             const ov::SoPtr<ov::IRemoteContext>& context,
+                                                             const ov::AnyMap& properties) const override;
+
+    virtual ov::SupportedOpsMap query_model(const std::shared_ptr<const ov::Model>& model,
+                                            const ov::AnyMap& properties) const override;
+};
+}  // namespace llama_cpp_plugin
+}  // namespace ov
+
+#endif  // LLAMA_CPP_PLUGIN_HPP

modules/llama_cpp_plugin/include/state.hpp

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+// Copyright (C) 2018-2023 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef LLAMA_CPP_PLUGIN_HPP
+#define LLAMA_CPP_PLUGIN_HPP
+
+#include "compiled_model.hpp"
+#include "openvino/runtime/ivariable_state.hpp"
+
+namespace ov {
+namespace llama_cpp_plugin {
+class LlamaCppState : public IVariableState {
+public:
+    LlamaCppState() = delete;
+    LlamaCppState(const std::shared_ptr<const LlamaCppModel>& model_ptr)
+        : m_model_ptr(model_ptr),
+          IVariableState("llama_cpp_state") {}
+    void reset() override {
+        llama_kv_cache_clear(m_model_ptr->m_llama_ctx);
+    }
+
+private:
+    const std::shared_ptr<const LlamaCppModel>& m_model_ptr;
+};
+}  // namespace llama_cpp_plugin
+}  // namespace ov
+#endif  // LLAMA_CPP_STATE_HPP