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Detect CUDNN related environment variables in cmake #8082

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Merged
soumith merged 1 commit into from
Jun 4, 2018
Merged

Detect CUDNN related environment variables in cmake #8082

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22 changes: 19 additions & 3 deletions cmake/public/cuda.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,29 @@ else()
SET(CUDNN_LIBNAME "cudnn")
endif()
include(FindPackageHandleStandardArgs)
set(CUDNN_ROOT_DIR "" CACHE PATH "Folder contains NVIDIA cuDNN")
find_path(CUDNN_INCLUDE_DIR cudnn.h

if(DEFINED ENV{CUDNN_ROOT_DIR})
set(CUDNN_ROOT_DIR $ENV{CUDNN_ROOT_DIR} CACHE PATH "Folder contains NVIDIA cuDNN")
else()
set(CUDNN_ROOT_DIR "" CACHE PATH "Folder contains NVIDIA cuDNN")
endif()

if(DEFINED ENV{CUDNN_INCLUDE_DIR})
set(CUDNN_INCLUDE_DIR $ENV{CUDNN_INCLUDE_DIR})
else()
find_path(CUDNN_INCLUDE_DIR cudnn.h
HINTS ${CUDNN_ROOT_DIR} ${CUDA_TOOLKIT_ROOT_DIR}
PATH_SUFFIXES cuda/include include)
find_library(CUDNN_LIBRARY ${CUDNN_LIBNAME}
endif()

if(DEFINED ENV{CUDNN_LIBRARY})
set(CUDNN_LIBRARY $ENV{CUDNN_LIBRARY})
else()
find_library(CUDNN_LIBRARY ${CUDNN_LIBNAME}
HINTS ${CUDNN_ROOT_DIR} ${CUDA_TOOLKIT_ROOT_DIR}
PATH_SUFFIXES lib lib64 cuda/lib cuda/lib64 lib/x64)
endif()

find_package_handle_standard_args(
CUDNN DEFAULT_MSG CUDNN_INCLUDE_DIR CUDNN_LIBRARY)
if(NOT CUDNN_FOUND)
Expand Down