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# ******************************************************************************
# Copyright 2017-2019 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ******************************************************************************
# The remaining code in this file was included from the Caffe 2 project,
# which was made available under the terms of the Apache 2.0 License.
# [link] (https://github.com/caffe2/caffe2/blob/f69232c9237174f8e272c0fc59d3e28af52842f2/cmake/Modules/FindCuDNN.cmake)
# - Try to find cuDNN
#
# The following variables are optionally searched for defaults
# CUDNN_ROOT_DIR: Base directory where all cuDNN components are found
#
# The following are set after configuration is done:
# CUDNN_FOUND
# CUDNN_INCLUDE_DIRS
# CUDNN_LIBRARIES
# CUDNN_LIBRARY_DIRS
include(FindPackageHandleStandardArgs)
set(CUDNN_ROOT_DIR "" CACHE PATH "Folder contains NVIDIA cuDNN")
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
HINTS ${CUDNN_ROOT_DIR} ${CUDA_TOOLKIT_ROOT_DIR}
PATH_SUFFIXES lib lib64 cuda/lib cuda/lib64 lib/x64)
find_package_handle_standard_args(
CUDNN DEFAULT_MSG CUDNN_INCLUDE_DIR CUDNN_LIBRARY)
if(CUDNN_FOUND)
# get cuDNN version
file(READ ${CUDNN_INCLUDE_DIR}/cudnn.h CUDNN_HEADER_CONTENTS)
string(REGEX MATCH "define CUDNN_MAJOR * +([0-9]+)"
CUDNN_VERSION_MAJOR "${CUDNN_HEADER_CONTENTS}")
string(REGEX REPLACE "define CUDNN_MAJOR * +([0-9]+)" "\\1"
CUDNN_VERSION_MAJOR "${CUDNN_VERSION_MAJOR}")
string(REGEX MATCH "define CUDNN_MINOR * +([0-9]+)"
CUDNN_VERSION_MINOR "${CUDNN_HEADER_CONTENTS}")
string(REGEX REPLACE "define CUDNN_MINOR * +([0-9]+)" "\\1"
CUDNN_VERSION_MINOR "${CUDNN_VERSION_MINOR}")
string(REGEX MATCH "define CUDNN_PATCHLEVEL * +([0-9]+)"
CUDNN_VERSION_PATCH "${CUDNN_HEADER_CONTENTS}")
string(REGEX REPLACE "define CUDNN_PATCHLEVEL * +([0-9]+)" "\\1"
CUDNN_VERSION_PATCH "${CUDNN_VERSION_PATCH}")
# Assemble cuDNN version
if(NOT CUDNN_VERSION_MAJOR)
set(CUDNN_VERSION "?")
else()
set(CUDNN_VERSION "${CUDNN_VERSION_MAJOR}.${CUDNN_VERSION_MINOR}.${CUDNN_VERSION_PATCH}")
endif()
set(CUDNN_INCLUDE_DIRS ${CUDNN_INCLUDE_DIR})
set(CUDNN_LIBRARIES ${CUDNN_LIBRARY})
message(STATUS "Found cuDNN: v${CUDNN_VERSION} (include: ${CUDNN_INCLUDE_DIR}, library: ${CUDNN_LIBRARY})")
mark_as_advanced(CUDNN_ROOT_DIR CUDNN_LIBRARY CUDNN_INCLUDE_DIR)
endif()