Adding libraft dependency to speed up compile times with USE_RAFT (facebookresearch#2958)

Summary: Pull Request resolved: facebookresearch#2958

Reviewed By: mlomeli1, mdouze

Differential Revision: D47678341

Pulled By: algoriddle

fbshipit-source-id: 2ab2d0e8349498faa0fc59ac9800da29a201c766

Author: cjnolet

cmake/thirdparty/get_raft.cmake

@@ -32,13 +32,14 @@ function(find_and_configure_raft)
             GLOBAL_TARGETS      raft::raft
             BUILD_EXPORT_SET    faiss-exports
             INSTALL_EXPORT_SET  faiss-exports
+	    COMPONENTS   compiled
             CPM_ARGS
             GIT_REPOSITORY https://github.com/${PKG_FORK}/raft.git
             GIT_TAG        ${PKG_PINNED_TAG}
             SOURCE_SUBDIR  cpp
             OPTIONS
             "BUILD_TESTS OFF"
-            "RAFT_COMPILE_LIBRARY OFF"
+	        "RAFT_COMPILE_LIBRARY ON"
             )
 endfunction()
 

faiss/gpu/CMakeLists.txt

@@ -260,7 +260,7 @@ foreach(header ${FAISS_GPU_HEADERS})
 endforeach()
 
 find_package(CUDAToolkit REQUIRED)
-target_link_libraries(faiss PRIVATE CUDA::cudart CUDA::cublas $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::raft> $<$<BOOL:${FAISS_ENABLE_RAFT}>:nvidia::cutlass::cutlass>)
-target_link_libraries(faiss_avx2 PRIVATE CUDA::cudart CUDA::cublas $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::raft> $<$<BOOL:${FAISS_ENABLE_RAFT}>:nvidia::cutlass::cutlass>)
+target_link_libraries(faiss PRIVATE CUDA::cudart CUDA::cublas $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::raft> $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::compiled> $<$<BOOL:${FAISS_ENABLE_RAFT}>:nvidia::cutlass::cutlass>)
+target_link_libraries(faiss_avx2 PRIVATE CUDA::cudart CUDA::cublas $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::raft> $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::compiled>  $<$<BOOL:${FAISS_ENABLE_RAFT}>:nvidia::cutlass::cutlass>)
 target_compile_options(faiss PRIVATE $<$<COMPILE_LANGUAGE:CUDA>:-Xfatbin=-compress-all --expt-extended-lambda --expt-relaxed-constexpr>)
 target_compile_options(faiss_avx2 PRIVATE $<$<COMPILE_LANGUAGE:CUDA>:-Xfatbin=-compress-all --expt-extended-lambda --expt-relaxed-constexpr>)

faiss/gpu/test/CMakeLists.txt

@@ -23,7 +23,7 @@ find_package(CUDAToolkit REQUIRED)
 include(GoogleTest)
 
 add_library(faiss_gpu_test_helper TestUtils.cpp)
-target_link_libraries(faiss_gpu_test_helper PUBLIC faiss gtest CUDA::cudart $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::raft>)
+target_link_libraries(faiss_gpu_test_helper PUBLIC faiss gtest CUDA::cudart $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::raft> $<$<BOOL:${FAISS_ENABLE_RAFT}>:raft::compiled>)
 
 macro(faiss_gpu_test file)
   get_filename_component(test_name ${file} NAME_WE)