gnu: Add python-pytorch.

* gnu/packages/machine-learning.scm (python-pytorch): New variable.
* gnu/packages/patches/python-pytorch-runpath.patch,
gnu/packages/patches/python-pytorch-system-libraries.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.

2 files changed, 156 insertions, 0 deletions

diff --git a/gnu/packages/patches/python-pytorch-runpath.patch b/gnu/packages/patches/python-pytorch-runpath.patch
new file mode 100644
index 0000000000..6f270ef9b1
--- /dev/null
+++ b/gnu/packages/patches/python-pytorch-runpath.patch
@@ -0,0 +1,25 @@
+Libraries (such as 'libtorch_cpu.so') and executables (such as 'torch_shm_manager')
+get installed, quite surprisingly, to 'lib/python3.8/site-packages/{bin,lib}'.
+Make sure RUNPATH matches that.
+
+--- a/cmake/Dependencies.cmake
++++ b/cmake/Dependencies.cmake
+@@ -4,7 +4,7 @@ if(APPLE)
+   set(CMAKE_MACOSX_RPATH ON)
+   set(_rpath_portable_origin "@loader_path")
+ else()
+-  set(_rpath_portable_origin $ORIGIN)
++  set(_rpath_portable_origin $ORIGIN/../lib)
+ endif(APPLE)
+ # Use separate rpaths during build and install phases
+ set(CMAKE_SKIP_BUILD_RPATH  FALSE)
+
+--- a/caffe2/CMakeLists.txt
++++ b/caffe2/CMakeLists.txt
+@@ -1797,5 +1797,5 @@ if(BUILD_PYTHON)
+   if(${BUILDING_WITH_TORCH_LIBS})
+     # site-packages/caffe2/python/caffe2_pybind11_state
+     # site-packages/torch/lib
+-    set(caffe2_pybind11_rpath "${_rpath_portable_origin}/../../torch/lib")
++    set(caffe2_pybind11_rpath $ORIGIN/../../torch/lib)
+   endif(${BUILDING_WITH_TORCH_LIBS})
diff --git a/gnu/packages/patches/python-pytorch-system-libraries.patch b/gnu/packages/patches/python-pytorch-system-libraries.patch
new file mode 100644
index 0000000000..c8d14b3f56
--- /dev/null
+++ b/gnu/packages/patches/python-pytorch-system-libraries.patch
@@ -0,0 +1,131 @@
+Use our own googletest rather than the bundled one.
+Get NNPACK to use our own PeachPy rather than the bundled one.
+
+diff --git a/cmake/Dependencies.cmake b/cmake/Dependencies.cmake
+index 5d57b9ca78..620cca4e60 100644
+--- a/cmake/Dependencies.cmake
++++ b/cmake/Dependencies.cmake
+@@ -644,11 +644,6 @@ if(BUILD_TEST OR BUILD_MOBILE_BENCHMARK OR BUILD_MOBILE_TEST)
+   # this shouldn't be necessary anymore.
+   get_property(INC_DIR_temp DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
+   set_property(DIRECTORY PROPERTY INCLUDE_DIRECTORIES "")
+-  add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/../third_party/googletest)
+-  set_property(DIRECTORY PROPERTY INCLUDE_DIRECTORIES ${INC_DIR_temp})
+-
+-  include_directories(BEFORE SYSTEM ${CMAKE_CURRENT_LIST_DIR}/../third_party/googletest/googletest/include)
+-  include_directories(BEFORE SYSTEM ${CMAKE_CURRENT_LIST_DIR}/../third_party/googletest/googlemock/include)
+ 
+   # We will not need to test benchmark lib itself.
+   set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "Disable benchmark testing as we don't need it.")
+@@ -1485,7 +1480,7 @@ if(CAFFE2_CMAKE_BUILDING_WITH_MAIN_REPO AND NOT INTERN_DISABLE_ONNX)
+     endif()
+     set_property(TARGET onnx_proto PROPERTY IMPORTED_LOCATION ${ONNX_PROTO_LIBRARY})
+     message("-- Found onnx: ${ONNX_LIBRARY} ${ONNX_PROTO_LIBRARY}")
+-    list(APPEND Caffe2_DEPENDENCY_LIBS onnx_proto onnx)
++    list(APPEND Caffe2_DEPENDENCY_LIBS onnx_proto onnx onnx_optimizer)
+   endif()
+   include_directories(${FOXI_INCLUDE_DIRS})
+   list(APPEND Caffe2_DEPENDENCY_LIBS foxi_loader)
+
+diff --git a/caffe2/CMakeLists.txt b/caffe2/CMakeLists.txt
+index 50ebb224ce..5953d9ddf7 100644
+--- a/caffe2/CMakeLists.txt
++++ b/caffe2/CMakeLists.txt
+@@ -1632,7 +1632,7 @@ if(BUILD_TEST)
+         if(NOT MSVC)
+           add_executable(${test_name}_${CPU_CAPABILITY} "${test_src}" ../aten/src/ATen/native/quantized/affine_quantizer_base.cpp)
+           # TODO: Get rid of c10 dependency (which is only needed for the implementation of AT_ERROR)
+-          target_link_libraries(${test_name}_${CPU_CAPABILITY} c10 sleef gtest_main)
++          target_link_libraries(${test_name}_${CPU_CAPABILITY} c10 sleef gtest_main gtest)
+           if(USE_FBGEMM)
+             target_link_libraries(${test_name}_${CPU_CAPABILITY} fbgemm)
+           endif()
+@@ -1655,7 +1655,7 @@ if(BUILD_TEST)
+   foreach(test_src ${Caffe2_CPU_TEST_SRCS})
+     get_filename_component(test_name ${test_src} NAME_WE)
+     add_executable(${test_name} "${test_src}")
+-    target_link_libraries(${test_name} torch_library gtest_main)
++    target_link_libraries(${test_name} torch_library gtest_main gtest)
+     target_include_directories(${test_name} PRIVATE $<INSTALL_INTERFACE:include>)
+     target_include_directories(${test_name} PRIVATE $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/include>)
+     target_include_directories(${test_name} PRIVATE ${Caffe2_CPU_INCLUDE})
+@@ -1673,7 +1673,7 @@ if(BUILD_TEST)
+     foreach(test_src ${Caffe2_GPU_TEST_SRCS})
+       get_filename_component(test_name ${test_src} NAME_WE)
+       cuda_add_executable(${test_name} "${test_src}")
+-      target_link_libraries(${test_name} torch_library gtest_main)
++      target_link_libraries(${test_name} torch_library gtest_main gtest)
+       target_include_directories(${test_name} PRIVATE $<INSTALL_INTERFACE:include>)
+       target_include_directories(${test_name} PRIVATE ${Caffe2_CPU_INCLUDE})
+       add_test(NAME ${test_name} COMMAND $<TARGET_FILE:${test_name}>)
+@@ -1691,7 +1691,7 @@ if(BUILD_TEST)
+     foreach(test_src ${Caffe2_VULKAN_TEST_SRCS})
+       get_filename_component(test_name ${test_src} NAME_WE)
+       add_executable(${test_name} "${test_src}")
+-      target_link_libraries(${test_name} torch_library gtest_main)
++      target_link_libraries(${test_name} torch_library gtest_main gtest)
+       target_include_directories(${test_name} PRIVATE $<INSTALL_INTERFACE:include>)
+       target_include_directories(${test_name} PRIVATE ${Caffe2_CPU_INCLUDE})
+       add_test(NAME ${test_name} COMMAND $<TARGET_FILE:${test_name}>)
+@@ -1709,7 +1709,7 @@ if(BUILD_TEST)
+     foreach(test_src ${Caffe2_HIP_TEST_SRCS})
+       get_filename_component(test_name ${test_src} NAME_WE)
+       add_executable(${test_name} "${test_src}")
+-      target_link_libraries(${test_name} torch_library gtest_main)
++      target_link_libraries(${test_name} torch_library gtest_main gtest)
+       target_include_directories(${test_name} PRIVATE $<INSTALL_INTERFACE:include>)
+       target_include_directories(${test_name} PRIVATE ${Caffe2_CPU_INCLUDE} ${Caffe2_HIP_INCLUDE})
+       target_compile_options(${test_name} PRIVATE ${HIP_CXX_FLAGS})
+
+diff --git a/torch/lib/c10d/test/CMakeLists.txt b/torch/lib/c10d/test/CMakeLists.txt
+index b74d4b65f7..fc7c207505 100644
+--- a/torch/lib/c10d/test/CMakeLists.txt
++++ b/torch/lib/c10d/test/CMakeLists.txt
+@@ -16,25 +16,25 @@ function(c10d_add_test test_src)
+   add_test(NAME ${test_name} COMMAND $<TARGET_FILE:${test_name}>)
+ endfunction()
+ 
+-c10d_add_test(FileStoreTest.cpp c10d gtest_main)
+-c10d_add_test(TCPStoreTest.cpp c10d gtest_main)
++c10d_add_test(FileStoreTest.cpp c10d gtest_main gtest)
++c10d_add_test(TCPStoreTest.cpp c10d gtest_main gtest)
+ if(NOT WIN32)
+-  c10d_add_test(HashStoreTest.cpp c10d gtest_main)
++  c10d_add_test(HashStoreTest.cpp c10d gtest_main gtest)
+ endif()
+ 
+ if(USE_CUDA)
+   if(USE_C10D_GLOO)
+-    c10d_add_test(ProcessGroupGlooTest.cpp c10d c10d_cuda_test gtest_main)
+-    c10d_add_test(ProcessGroupGlooAsyncTest.cpp c10d c10d_cuda_test gtest_main)
++    c10d_add_test(ProcessGroupGlooTest.cpp c10d c10d_cuda_test gtest_main gtest)
++    c10d_add_test(ProcessGroupGlooAsyncTest.cpp c10d c10d_cuda_test gtest_main gtest)
+   endif()
+   if(USE_C10D_NCCL)
+-    c10d_add_test(ProcessGroupNCCLTest.cpp c10d c10d_cuda_test gtest_main)
++    c10d_add_test(ProcessGroupNCCLTest.cpp c10d c10d_cuda_test gtest_main gtest)
+     c10d_add_test(ProcessGroupNCCLErrorsTest.cpp c10d c10d_cuda_test
+-        gtest_main)
++        gtest_main gtest)
+   endif()
+ else()
+   if(USE_C10D_GLOO)
+-    c10d_add_test(ProcessGroupGlooTest.cpp c10d gtest_main)
++    c10d_add_test(ProcessGroupGlooTest.cpp c10d gtest_main gtest)
+   endif()
+ endif()
+ 
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 5ecd2df..24feae3 100644
+--- a/third_party/NNPACK/CMakeLists.txt
++++ b/third_party/NNPACK/CMakeLists.txt
+@@ -427,8 +427,7 @@ IF(NNPACK_BACKEND STREQUAL "x86-64")
+       FILE(MAKE_DIRECTORY ${obj_dir})
+       ADD_CUSTOM_COMMAND(
+         OUTPUT ${obj}
+-        COMMAND "PYTHONPATH=${PEACHPY_PYTHONPATH}"
+-          ${PYTHON_EXECUTABLE} -m peachpy.x86_64
++        COMMAND ${PYTHON_EXECUTABLE} -m peachpy.x86_64
+             -mabi=sysv -g4 -mimage-format=${PEACHPY_IMAGE_FORMAT}
+             "-I${PROJECT_SOURCE_DIR}/src" "-I${PROJECT_SOURCE_DIR}/src/x86_64-fma" "-I${FP16_SOURCE_DIR}/include"
+             -o ${obj} "${PROJECT_SOURCE_DIR}/${src}"