fix: Change CMake variable for switch to knowhere-cuvs (milvus-io#40105)

issue: milvus-io#39883

Signed-off-by: Mickael Ide <[email protected]>

Author: lowener

.gitignore

@@ -29,6 +29,7 @@ docker-compose-devcontainer.yml.tmp
 
 # Docker generated cache file
 .docker/
+.docker-gpu/
 
 **/_artifacts/**
 

README.md

@@ -81,7 +81,7 @@ Milvus is designed to handle vector search at scale. It stores vectors, which ar
 
 
 **Support for Various Vector Index Types and Hardware Acceleration**  
-  * Milvus separates the system and core vector search engine, allowing it to support all major vector index types that are optimized for different scenarios, including HNSW, IVF, FLAT (brute-force), SCANN, and DiskANN, with [quantization-based](https://milvus.io/docs/index.md?tab=floating#IVFPQ) variations and [mmap](https://milvus.io/docs/mmap.md). Milvus optimizes vector search for advanced features such as [metadata filtering](https://milvus.io/docs/scalar_index.md#Scalar-Index) and [range search](https://milvus.io/docs/single-vector-search.md#Range-search). Additionally, Milvus implements hardware acceleration to enhance vector search performance and supports GPU indexing, such as NVIDIA's [CAGRA](https://github.com/rapidsai/raft).
+  * Milvus separates the system and core vector search engine, allowing it to support all major vector index types that are optimized for different scenarios, including HNSW, IVF, FLAT (brute-force), SCANN, and DiskANN, with [quantization-based](https://milvus.io/docs/index.md?tab=floating#IVFPQ) variations and [mmap](https://milvus.io/docs/mmap.md). Milvus optimizes vector search for advanced features such as [metadata filtering](https://milvus.io/docs/scalar_index.md#Scalar-Index) and [range search](https://milvus.io/docs/single-vector-search.md#Range-search). Additionally, Milvus implements hardware acceleration to enhance vector search performance and supports GPU indexing, such as NVIDIA's [CAGRA](https://github.com/rapidsai/cuvs).
 
 
 **Flexible Multi-tenancy and Hot/Cold Storage**

internal/core/thirdparty/knowhere/CMakeLists.txt

@@ -35,7 +35,7 @@ else ()
 endif()
 
 if ( MILVUS_GPU_VERSION STREQUAL "ON" )
-    set(WITH_RAFT ON CACHE BOOL "" FORCE )
+    set(WITH_CUVS ON CACHE BOOL "" FORCE )
 endif ()
 
 set( CMAKE_PREFIX_PATH ${CONAN_BOOST_ROOT} )