33 lines
1.5 KiB
CMake
33 lines
1.5 KiB
CMake
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# reference to https://github.com/llvm/torch-mlir/blob/main/python/torch_mlir/dialects/torch/importer/jit_ir/cmake/modules/TorchMLIRPyTorch.cmake
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# PNNXProbeForPyTorchInstall
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# Attempts to find a Torch installation and set the Torch_ROOT variable
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# based on introspecting the python environment. This allows a subsequent
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# call to find_package(Torch) to work.
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function(PNNXProbeForPyTorchInstall)
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if(Torch_ROOT)
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message(STATUS "Using cached Torch root = ${Torch_ROOT}")
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elseif(Torch_INSTALL_DIR)
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message(STATUS "Using cached Torch install dir = ${Torch_INSTALL_DIR}")
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set(Torch_DIR "${Torch_INSTALL_DIR}/share/cmake/Torch" CACHE STRING "Torch dir" FORCE)
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else()
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#find_package (Python3 COMPONENTS Interpreter Development)
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find_package (Python3)
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message(STATUS "Checking for PyTorch using ${Python3_EXECUTABLE} ...")
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execute_process(
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COMMAND "${Python3_EXECUTABLE}"
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-c "import os;import torch;print(torch.utils.cmake_prefix_path, end='')"
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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RESULT_VARIABLE PYTORCH_STATUS
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OUTPUT_VARIABLE PYTORCH_PACKAGE_DIR)
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if(NOT PYTORCH_STATUS EQUAL "0")
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message(STATUS "Unable to 'import torch' with ${Python3_EXECUTABLE} (fallback to explicit config)")
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return()
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endif()
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message(STATUS "Found PyTorch installation at ${PYTORCH_PACKAGE_DIR}")
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set(Torch_ROOT "${PYTORCH_PACKAGE_DIR}" CACHE STRING
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"Torch configure directory" FORCE)
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endif()
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endfunction()
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