[cudnn] remove hardcoded version in cmake module (#3738)

collateral fixes: 
* handle opencv4 upgrade on vcpkg
* add yasm (ffmpeg prerequisite) on travis
* install ffmpeg separately from opencv to circumvent time limits
* build only release to halve ci time
* do not build as shared libs when using vcpkg, since default triplets are static
* remove debug configs from appveyor matrix

.travis.yml

@@ -78,8 +78,8 @@ matrix:
       name: macOS - clang - vcpkg
       osx_image: xcode10.1
       env:
-        - additional_defines=""
-        - MATRIX_EVAL="brew install gcc && unset CC && unset CXX"
+        - additional_defines="-DBUILD_SHARED_LIBS=OFF"
+        - MATRIX_EVAL="brew install gcc && brew install yasm && unset CC && unset CXX"
         - USE_VCPKG=true
         - VCPKG_DEFINES="-DCMAKE_TOOLCHAIN_FILE=$HOME/vcpkg/scripts/buildsystems/vcpkg.cmake"
 
@@ -111,8 +111,13 @@ matrix:
       compiler: gcc
       dist: bionic
       name: ubuntu 18.04 - gcc - vcpkg
+      addons:
+        apt:
+          update: true
+          packages:
+            - yasm
       env:
-        - additional_defines=""
+        - additional_defines="-DBUILD_SHARED_LIBS=OFF"
         - USE_VCPKG=true
         - VCPKG_DEFINES="-DCMAKE_TOOLCHAIN_FILE=$HOME/vcpkg/scripts/buildsystems/vcpkg.cmake"
         - MATRIX_EVAL=""
@@ -181,8 +186,13 @@ matrix:
       compiler: gcc
       dist: bionic
       name: ubuntu 18.04 - gcc - CUDA 10 - vcpkg
+      addons:
+        apt:
+          update: true
+          packages:
+            - yasm
       env:
-        - additional_defines=""
+        - additional_defines="-DBUILD_SHARED_LIBS=OFF"
         - USE_VCPKG=true
         - VCPKG_DEFINES="-DCMAKE_TOOLCHAIN_FILE=$HOME/vcpkg/scripts/buildsystems/vcpkg.cmake"
         - CUDACXX=/usr/local/cuda-10.0/bin/nvcc
@@ -209,22 +219,20 @@ install:
   - cd vcpkg
   - git pull
   - if [ "${USE_VCPKG}" = true ] ; then ./bootstrap-vcpkg.sh ; fi
-  - if [ "${USE_VCPKG}" = true ] ; then travis_wait ./vcpkg install stb pthreads ; fi
+  - if [ "${USE_VCPKG}" = true ] ; then echo "set(VCPKG_BUILD_TYPE release)" >> triplets/x64-osx.cmake ; fi
+  - if [ "${USE_VCPKG}" = true ] ; then echo "set(VCPKG_BUILD_TYPE release)" >> triplets/x64-linux.cmake ; fi
+  - if [ "${USE_VCPKG}" = true ] ; then travis_wait ./vcpkg install stb pthreads --recurse; fi
+  - if [ "${USE_VCPKG}" = true ] ; then travis_wait 45 ./vcpkg install ffmpeg --recurse; fi
   #- if [ "${USE_VCPKG}" = true ] && [[ ! -z "${CUDACXX}" ]] ; then travis_wait 45 ./vcpkg install opencv[ffmpeg,cuda] --recurse; fi
   #- if [ "${USE_VCPKG}" = true ] && [[ -z "${CUDACXX}" ]] ; then travis_wait 45 ./vcpkg install opencv[ffmpeg] --recurse; fi
-  - if [ "${USE_VCPKG}" = true ] ; then travis_wait 45 ./vcpkg install opencv[ffmpeg] ; fi
+  - if [ "${USE_VCPKG}" = true ] ; then travis_wait 45 ./vcpkg install opencv[ffmpeg] --recurse; fi
   - popd
 
 before_script:
-  - mkdir build_debug
-  - cd build_debug
-  - cmake .. -DCMAKE_BUILD_TYPE="Debug" ${VCPKG_DEFINES} ${additional_defines}
-  - cd ..
   - mkdir build_release
   - cd build_release
   - cmake .. -DCMAKE_BUILD_TYPE="Release" ${VCPKG_DEFINES} ${additional_defines}
   - cd ..
 
 script:
-  - cd build_debug   && cmake --build . --target install -- -j8 && cd ..
   - cd build_release && cmake --build . --target install -- -j8 && cd ..

appveyor.yml

@@ -10,29 +10,17 @@ environment:
       CYGWIN_NOWINPATH: yes
       CYGSH: C:\cygwin64\bin\bash -c
     - platform: Win64
-      COMPILER: vs
-      configuration: Release
-      VCPKG_ROOT: C:\Tools\vcpkg
-      VCPKG_DEFAULT_TRIPLET: x64-windows
       USE_CUDA: yes
-    - platform: Win64
-      COMPILER: vs
-      configuration: Debug
-      VCPKG_ROOT: C:\Tools\vcpkg
-      VCPKG_DEFAULT_TRIPLET: x64-windows
-      USE_CUDA: yes
-    - platform: Win64
       COMPILER: vs
       configuration: Release
       VCPKG_ROOT: C:\Tools\vcpkg
       VCPKG_DEFAULT_TRIPLET: x64-windows
-      USE_CUDA: no
     - platform: Win64
+      USE_CUDA: no
       COMPILER: vs
-      configuration: Debug
+      configuration: Release
       VCPKG_ROOT: C:\Tools\vcpkg
       VCPKG_DEFAULT_TRIPLET: x64-windows
-      USE_CUDA: no
     - platform: Win64
       COMPILER: vs
       configuration: Release
@@ -71,14 +59,15 @@ install:
   - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] cd %VCPKG_ROOT%
   - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] git pull
   - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] .\bootstrap-vcpkg.bat
-  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] if [%USE_CUDA%]==[yes] vcpkg install cuda
-  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] vcpkg install stb pthreads
-  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] vcpkg install opencv[ffmpeg] ## opencv[ffmpeg,cuda] is too big to build, timing out (>1h). We use plain openCV also for CUDA builds (toolchain can manage this strange situation anyway)
+  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] echo set(VCPKG_BUILD_TYPE release) >> triplets\%VCPKG_DEFAULT_TRIPLET%.cmake
+  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] if [%USE_CUDA%]==[yes] vcpkg install cuda --recurse
+  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] vcpkg install stb pthreads --recurse
+  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] vcpkg install ffmpeg --recurse
+  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] vcpkg install opencv[ffmpeg] --recurse ## opencv[ffmpeg,cuda] is too big to build, timing out (>1h). We use plain openCV also for CUDA builds (toolchain can manage this strange situation anyway)
   - cd %WORKSPACE%\darknet\
-  - mkdir build_debug && cd build_debug
+  - if [%COMPILER%]==[cygwin] mkdir build_debug && cd build_debug
   - if [%COMPILER%]==[cygwin] %CYGSH% 'cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Debug"'
-  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] if [%configuration%]==[Debug] cmake -G "Visual Studio 15 2017" -T "host=x64" -A "x64" "-DCMAKE_TOOLCHAIN_FILE=%VCPKG_ROOT%\scripts\buildsystems\vcpkg.cmake" "-DVCPKG_TARGET_TRIPLET=%VCPKG_DEFAULT_TRIPLET%" -DCMAKE_BUILD_TYPE="Debug" ..
-  - cd ..
+  - if [%COMPILER%]==[cygwin] cd ..
   - mkdir build_release && cd build_release
   - if [%COMPILER%]==[cygwin] %CYGSH% 'cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release"'
   - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] if [%configuration%]==[Release] cmake -G "Visual Studio 15 2017" -T "host=x64" -A "x64" "-DCMAKE_TOOLCHAIN_FILE=%VCPKG_ROOT%\scripts\buildsystems\vcpkg.cmake" "-DVCPKG_TARGET_TRIPLET=%VCPKG_DEFAULT_TRIPLET%" -DCMAKE_BUILD_TYPE="Release" ..
@@ -89,7 +78,6 @@ install:
 build_script:
   - if [%COMPILER%]==[cygwin]                                                                   cd build_debug   && %CYGSH% 'cmake --build . --target install -- -j8'              && cd ..
   - if [%COMPILER%]==[cygwin]                                                                   cd build_release && %CYGSH% 'cmake --build . --target install -- -j8'              && cd ..
-  - if [%COMPILER%]==[vs] if NOT [%USE_INTEGRATED_LIBS%]==[yes] if [%configuration%]==[Debug]   cd build_debug   && cmake --build . --config Debug --parallel 8 --target install   && cd ..
   - if [%COMPILER%]==[vs]                                       if [%configuration%]==[Release] cd build_release && cmake --build . --config Release --parallel 8 --target install && cd ..
 
 artifacts:

build.sh

@@ -16,12 +16,14 @@ then
   vcpkg_define="-DCMAKE_TOOLCHAIN_FILE=${vcpkg_path}/scripts/buildsystems/vcpkg.cmake"
   vcpkg_triplet_define="-DVCPKG_TARGET_TRIPLET=$vcpkg_triplet"
   echo "Found vcpkg in VCPKG_ROOT: ${vcpkg_path}"
+  additional_defines="-DBUILD_SHARED_LIBS=OFF"
 elif [[ ! -z "${WORKSPACE}" ]] && [ -d ${WORKSPACE}/vcpkg ] && [ ! "$bypass_vcpkg" = true ]
 then
   vcpkg_path="${WORKSPACE}/vcpkg"
   vcpkg_define="-DCMAKE_TOOLCHAIN_FILE=${vcpkg_path}/scripts/buildsystems/vcpkg.cmake"
   vcpkg_triplet_define="-DVCPKG_TARGET_TRIPLET=$vcpkg_triplet"
   echo "Found vcpkg in WORKSPACE/vcpkg: ${vcpkg_path}"
+  additional_defines="-DBUILD_SHARED_LIBS=OFF"
 elif [ ! "$bypass_vcpkg" = true ]
 then
   (>&2 echo "darknet is unsupported without vcpkg, use at your own risk!")

cmake/Modules/FindCUDNN.cmake

@@ -34,10 +34,7 @@ if(NOT CUDNN_LIBRARY)
     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(CUDNN_FOUND)
+if(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn.h")
   file(READ ${CUDNN_INCLUDE_DIR}/cudnn.h CUDNN_HEADER_CONTENTS)
     string(REGEX MATCH "define CUDNN_MAJOR * +([0-9]+)"
                  CUDNN_VERSION_MAJOR "${CUDNN_HEADER_CONTENTS}")
@@ -60,21 +57,17 @@ endif()
 
 set(CUDNN_INCLUDE_DIRS ${CUDNN_INCLUDE_DIR})
 set(CUDNN_LIBRARIES ${CUDNN_LIBRARY})
-if(CUDNN_FOUND)
-  message(STATUS "Found cuDNN: v${CUDNN_VERSION}  (include: ${CUDNN_INCLUDE_DIR}, library: ${CUDNN_LIBRARY})")
-endif()
 mark_as_advanced(CUDNN_LIBRARY CUDNN_INCLUDE_DIR)
 
-# Register imported libraries:
-# 1. If we can find a Windows .dll file (or if we can find both Debug and
-#    Release libraries), we will set appropriate target properties for these.
-# 2. However, for most systems, we will only register the import location and
-#    include directory.
+find_package_handle_standard_args(CUDNN
+      REQUIRED_VARS  CUDNN_INCLUDE_DIR CUDNN_LIBRARY
+      VERSION_VAR    CUDNN_VERSION
+)
+
 if(WIN32)
   set(CUDNN_DLL_DIR ${CUDNN_INCLUDE_DIR})
   list(TRANSFORM CUDNN_DLL_DIR APPEND "/../bin")
-  message(STATUS "CUDNN_DLL_DIR: ${CUDNN_DLL_DIR}")
-  find_file(CUDNN_LIBRARY_DLL NAMES cudnn64_7.dll PATHS ${CUDNN_DLL_DIR})
+  find_file(CUDNN_LIBRARY_DLL NAMES cudnn64_${CUDNN_VERSION_MAJOR}.dll PATHS ${CUDNN_DLL_DIR})
 endif()
 
 if( CUDNN_FOUND AND NOT TARGET CuDNN::CuDNN )