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CMakeLists.txt
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CMakeLists.txt
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# gRPC needs to be installed first. See README.md.
find_package(protobuf CONFIG REQUIRED)
find_package(gRPC CONFIG REQUIRED)
find_package(Threads)
# Generated code from the protobuf definition.
add_library(federated_proto federated.proto)
target_link_libraries(federated_proto PUBLIC protobuf::libprotobuf gRPC::grpc gRPC::grpc++)
target_include_directories(federated_proto PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
set_property(TARGET federated_proto PROPERTY POSITION_INDEPENDENT_CODE ON)
get_target_property(grpc_cpp_plugin_location gRPC::grpc_cpp_plugin LOCATION)
protobuf_generate(TARGET federated_proto LANGUAGE cpp)
protobuf_generate(
TARGET federated_proto
LANGUAGE grpc
GENERATE_EXTENSIONS .grpc.pb.h .grpc.pb.cc
PLUGIN "protoc-gen-grpc=${grpc_cpp_plugin_location}")
# Wrapper for the gRPC client.
add_library(federated_client INTERFACE federated_client.h)
target_link_libraries(federated_client INTERFACE federated_proto)
# Rabit engine for Federated Learning.
target_sources(objxgboost PRIVATE federated_server.cc engine_federated.cc)
target_link_libraries(objxgboost PRIVATE federated_client)
target_compile_definitions(objxgboost PUBLIC -DXGBOOST_USE_FEDERATED=1)