How can I compile PyG-lib

[LukeLIN-web]

I tried:

 mkdir build
cd build
cmake ..

But it shows:

-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is GNU 7.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:68 (find_package):
  By not providing "FindTorch.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Torch", but
  CMake did not find one.

  Could not find a package configuration file provided by "Torch" with any of
  the following names:

    TorchConfig.cmake
    torch-config.cmake

  Add the installation prefix of "Torch" to CMAKE_PREFIX_PATH or set
  "Torch_DIR" to a directory containing one of the above files.  If "Torch"
  provides a separate development package or SDK, be sure it has been
  installed.

[LukeLIN-web]

cmake -DCMAKE_PREFIX_PATH=/root/share/learningpybind/libtorch ..
cmake --build . --config Release

And need git submodule update

[LukeLIN-web]

I use

cmake -DCMAKE_PREFIX_PATH=/root/share/learningpybind/libtorch ..
cmake --build . --config Release

Solves this problem.
However, another problem occurs:

/root/share/pyg-lib/pyg_lib/csrc/ops/cpu/matmul_kernel.cpp:13:10: fatal error: parallel_hashmap/phmap.h: No such file or directory
 #include "parallel_hashmap/phmap.h"
          ^~~~~~~~~~~~~~~~~~~~~~~~~~

[LukeLIN-web]

I know , git submodule update

[rusty1s]

Try

export Torch_DIR=`python -c 'import torch;print(torch.utils.cmake_prefix_path)'`

Are you sure git submodule did work for you or are the folders just empty?

[LukeLIN-web]

Try export Torch_DIR=python -c 'import torch;print(torch.utils.cmake_prefix_path)'``. Are you sure git submodule did work for you or are the folders just empty?

Thank you. I tried git submodule update to pull the submodule, and it works.