Initial implementation of SVS Runtime package

.github/workflows/build-cpp-runtime-bindings.yml

@@ -0,0 +1,92 @@
+# Copyright 2025 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Build C++ Runtime Bindings
+run-name: ${{ github.event.inputs.run_name || github.event.pull_request.title }}
+
+on:
+  workflow_dispatch:
+    inputs:
+      run_name:
+        description: "Custom workflow name"
+        required: false
+      submodule_url:
+        description: "Submodule url (e.g. https://github.com/intel/ScalableVectorSearch.git)"
+        required: false
+      submodule_sha:
+        description: "Submodule sha/branch"
+        required: false
+  pull_request:
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
+  cancel-in-progress: true
+
+jobs:
+  build-cpp-runtime-bindings:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Build Docker image
+        run: |
+          docker build -t svs-manylinux228:latest -f docker/x86_64/manylinux228/Dockerfile .
+
+      - name: Build libraries in Docker container
+        run: |
+          docker run --rm \
+            -v ${{ github.workspace }}:/workspace \
+            -w /workspace \
+            svs-manylinux228:latest \
+            /bin/bash -c "chmod +x docker/x86_64/build-cpp-runtime-bindings.sh && ./docker/x86_64/build-cpp-runtime-bindings.sh"
+
+      - name: Upload cpp runtime bindings artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: svs-cpp-runtime-bindings
+          path: svs-cpp-runtime-bindings.tar.gz
+          retention-days: 7  # Reduce retention due to size
+
+  test:
+    needs: build-cpp-runtime-bindings
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Build Docker image
+        run: |
+          docker build -t svs-manylinux228:latest -f docker/x86_64/manylinux228/Dockerfile .
+
+      # Need to download for a new job
+      - name: Download shared libraries
+        uses: actions/download-artifact@v4
+        with:
+          name: svs-cpp-runtime-bindings
+          path: runtime_lib
+
+      - name: List available artifacts
+        run: |
+          ls -la runtime_lib/
+
+      - name: Test in Docker container
+        run: |
+          docker run --rm \
+            -v ${{ github.workspace }}:/workspace \
+            -v ${{ github.workspace }}/runtime_lib:/runtime_lib \
+            -w /workspace \
+            svs-manylinux228:latest \
+            /bin/bash -c "chmod +x docker/x86_64/test-cpp-runtime-bindings.sh && ./docker/x86_64/test-cpp-runtime-bindings.sh"

.gitignore

@@ -19,5 +19,8 @@ __pycache__/
 /bindings/python/_skbuild/
 /bindings/python/dist/
 
+# CPP bindings build files
+/bindings/cpp/build/
+
 # Example generated files.
 example_data_*/

bindings/cpp/CMakeLists.txt

@@ -0,0 +1,194 @@
+# Copyright 2025 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.21)
+project(svs_runtime VERSION 0.0.10 LANGUAGES CXX)
+set(TARGET_NAME svs_runtime)
+
+set(SVS_RUNTIME_HEADERS
+    include/svs/runtime/version.h
+    include/svs/runtime/api_defs.h
+    include/svs/runtime/training.h
+    include/svs/runtime/vamana_index.h
+    include/svs/runtime/dynamic_vamana_index.h
+    include/svs/runtime/flat_index.h
+)
+
+set(SVS_RUNTIME_SOURCES
+    src/svs_runtime_utils.h
+    src/dynamic_vamana_index_impl.h
+    src/flat_index_impl.h
+    src/api_defs.cpp
+    src/training.cpp
+    src/vamana_index.cpp
+    src/dynamic_vamana_index.cpp
+    src/flat_index.cpp
+)
+
+option(SVS_RUNTIME_ENABLE_LVQ_LEANVEC "Enable compilation of SVS runtime with LVQ and LeanVec support" ON)
+if (SVS_RUNTIME_ENABLE_LVQ_LEANVEC)
+    message(STATUS "SVS runtime will be built with LVQ support")
+else()
+    message(STATUS "SVS runtime will be built without LVQ or LeanVec support")
+endif()
+
+add_library(${TARGET_NAME} SHARED
+    ${SVS_RUNTIME_HEADERS}
+    ${SVS_RUNTIME_SOURCES}
+)
+
+target_include_directories(${TARGET_NAME} PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+find_package(OpenMP REQUIRED)
+target_link_libraries(${TARGET_NAME} PUBLIC OpenMP::OpenMP_CXX)
+
+target_compile_options(${TARGET_NAME} PRIVATE
+    -DSVS_ENABLE_OMP=1
+    -fvisibility=hidden
+)
+
+if(UNIX AND NOT APPLE)
+    # Don't export 3rd-party symbols from the lib
+    target_link_options(${TARGET_NAME} PRIVATE "SHELL:-Wl,--exclude-libs,ALL")
+endif()
+
+target_compile_features(${TARGET_NAME} INTERFACE cxx_std_20)
+set_target_properties(${TARGET_NAME} PROPERTIES PUBLIC_HEADER "${SVS_RUNTIME_HEADERS}")
+set_target_properties(${TARGET_NAME} PROPERTIES CXX_STANDARD 20)
+set_target_properties(${TARGET_NAME} PROPERTIES CXX_STANDARD_REQUIRED ON)
+set_target_properties(${TARGET_NAME} PROPERTIES CXX_EXTENSIONS OFF)
+set_target_properties(${TARGET_NAME} PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR} )
+
+if(DEFINED SVS_LVQ_HEADER AND DEFINED SVS_LEANVEC_HEADER)
+    # expected that pre-defined headers are implementation headers
+    message(STATUS "Using pre-defined LVQ header: ${SVS_LVQ_HEADER}")
+    message(STATUS "Using pre-defined LeanVec header: ${SVS_LEANVEC_HEADER}")
+else()
+    set(SVS_LVQ_HEADER "svs/extensions/vamana/lvq.h")
+    set(SVS_LEANVEC_HEADER "svs/extensions/vamana/leanvec.h")
+endif()
+
+if ((SVS_RUNTIME_ENABLE_LVQ_LEANVEC))
+    if(RUNTIME_BINDINGS_PRIVATE_SOURCE_BUILD)
+        message(STATUS "Building directly from private sources")
+        target_link_libraries(${TARGET_NAME} PRIVATE
+            svs::svs
+        )
+        link_mkl_static(${TARGET_NAME})
+    elseif(TARGET svs_static_library)
+        # Links to SVS static library built as part of the main SVS build
+        target_link_libraries(${TARGET_NAME} PRIVATE
+            svs_devel
+            svs_static_library
+            svs_compile_options
+            svs_x86_options_base
+        )
+    elseif(TARGET svs::svs)
+        message(FATAL_ERROR
+            "Pre-built LVQ/LeanVec SVS library cannot be used in SVS main build. "
+            "Please build SVS Runtime using bindins/cpp directory as CMake source root."
+        )
+    else()
+        # Links to LTO-enabled static library, requires GCC/G++ 11.2
+        if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "11.2" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "11.3")
+            set(SVS_URL "https://github.com/intel/ScalableVectorSearch/releases/download/v1.0.0-dev/svs-shared-library-1.0.0-NIGHTLY-20251107-773.tar.gz"
+                CACHE STRING "URL to download SVS shared library")
+        else()
+            message(WARNING
+                "Pre-built LVQ/LeanVec SVS library requires GCC/G++ v.11.2 to apply LTO optimizations."
+                "Current compiler: ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}"
+            )
+            set(SVS_URL "https://github.com/intel/ScalableVectorSearch/releases/download/v1.0.0-dev/svs-shared-library-1.0.0-NIGHTLY-20251017-faiss.tar.gz")
+        endif()
+        include(FetchContent)
+        FetchContent_Declare(
+            svs
+            URL ${SVS_URL}
+        )
+        FetchContent_MakeAvailable(svs)
+        list(APPEND CMAKE_PREFIX_PATH "${svs_SOURCE_DIR}")
+        find_package(svs REQUIRED)
+        target_link_libraries(${TARGET_NAME} PRIVATE
+            svs::svs
+            svs::svs_compile_options
+            svs::svs_static_library
+        )
+    endif()
+    target_compile_definitions(${TARGET_NAME} PRIVATE
+        PUBLIC "SVS_LVQ_HEADER=\"${SVS_LVQ_HEADER}\""
+        PUBLIC "SVS_LEANVEC_HEADER=\"${SVS_LEANVEC_HEADER}\""
+    )
+else()
+    # Include the SVS library directly if needed.
+    if (NOT TARGET svs::svs)
+        add_subdirectory("../.." "${CMAKE_CURRENT_BINARY_DIR}/svs")
+    endif()
+    target_link_libraries(${TARGET_NAME} PRIVATE
+       svs::svs
+       svs_compile_options
+       svs_x86_options_base
+    )
+endif()
+
+# installing
+include(GNUInstallDirs)
+
+set(SVS_RUNTIME_EXPORT_NAME ${TARGET_NAME})
+set(VERSION_CONFIG "${CMAKE_CURRENT_BINARY_DIR}/${SVS_RUNTIME_EXPORT_NAME}ConfigVersion.cmake")
+set(SVS_RUNTIME_CONFIG_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/svs_runtime)
+set(SVS_RUNTIME_COMPONENT_NAME "Runtime")
+
+install(TARGETS ${TARGET_NAME}
+    EXPORT ${SVS_RUNTIME_EXPORT_NAME}
+    COMPONENT ${SVS_RUNTIME_COMPONENT_NAME}
+    LIBRARY DESTINATION lib
+    PUBLIC_HEADER DESTINATION include/svs/runtime
+    INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+)
+
+install(DIRECTORY include/svs/runtime
+    COMPONENT ${SVS_RUNTIME_COMPONENT_NAME}
+    DESTINATION include/svs
+    FILES_MATCHING PATTERN "*.h"
+)
+
+install(EXPORT ${SVS_RUNTIME_EXPORT_NAME}
+    COMPONENT ${SVS_RUNTIME_COMPONENT_NAME}
+    NAMESPACE svs::
+    DESTINATION ${SVS_RUNTIME_CONFIG_INSTALL_DIR}
+)
+
+include(CMakePackageConfigHelpers)
+configure_package_config_file(
+    "${CMAKE_CURRENT_LIST_DIR}/runtimeConfig.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/${SVS_RUNTIME_EXPORT_NAME}Config.cmake"
+    INSTALL_DESTINATION "${SVS_RUNTIME_CONFIG_INSTALL_DIR}"
+)
+
+# Don't make compatibility guarantees until we reach a compatibility milestone.
+write_basic_package_version_file(
+    ${VERSION_CONFIG}
+    VERSION ${PROJECT_VERSION}
+    COMPATIBILITY ExactVersion
+)
+
+install(FILES
+    "${CMAKE_CURRENT_BINARY_DIR}/${SVS_RUNTIME_EXPORT_NAME}Config.cmake"
+    "${VERSION_CONFIG}"
+    COMPONENT ${SVS_RUNTIME_COMPONENT_NAME}
+    DESTINATION "${SVS_RUNTIME_CONFIG_INSTALL_DIR}"
+)
+