# NOTES: current just for CMake-based IDE (e.g. CLion) indexing, the real compilation is done via JIT
cmake_minimum_required(VERSION 3.10)
project(deep_gemm LANGUAGES CXX CUDA)
set(CMAKE_VERBOSE_MAKEFILE ON)

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3 -fPIC -Wno-psabi")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3 -fPIC -Wno-psabi")
set(CUDA_SEPARABLE_COMPILATION ON)
list(APPEND CUDA_NVCC_FLAGS "-DENABLE_FAST_DEBUG")
list(APPEND CUDA_NVCC_FLAGS "-O3")
list(APPEND CUDA_NVCC_FLAGS "--ptxas-options=--verbose,--register-usage-level=10,--warn-on-local-memory-usage")

set(USE_SYSTEM_NVTX on)
set(CUDA_ARCH_LIST "9.0" CACHE STRING "List of CUDA architectures to compile")
set(TORCH_CUDA_ARCH_LIST "${CUDA_ARCH_LIST}")

find_package(CUDAToolkit REQUIRED)
find_package(pybind11 REQUIRED)
find_package(Torch REQUIRED)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CUDA_STANDARD 17)

include_directories(deep_gemm/include third-party/cutlass/include third-party/cutlass/tools/util/include third-party/fmt/include)
include_directories(${CUDA_TOOLKIT_ROOT_DIR}/targets/x86_64-linux/include ${TORCH_INCLUDE_DIRS} ${PYTHON_INCLUDE_DIRS})
link_directories(${TORCH_INSTALL_PREFIX}/lib ${CUDA_TOOLKIT_ROOT_DIR}/lib64 ${CUDA_TOOLKIT_ROOT_DIR}/lib64/stubs)

# The main Python API entrance
pybind11_add_module(deep_gemm_cpp csrc/python_api.cpp)
target_link_libraries(deep_gemm_cpp PRIVATE ${TORCH_LIBRARIES} torch_python cuda)

# Enable kernel code indexing with CMake-based IDEs
cuda_add_library(deep_gemm_indexing_cuda STATIC csrc/indexing/main.cu)