[cudnn] Try to find CUDNN locally before downloading (#14686)

* [cudnn] Try to find CUDNN locally before downloading

* Update port version to 3

3 files changed, 89 insertions, 43 deletions

diff --git a/ports/cudnn/CONTROL b/ports/cudnn/CONTROL
index 24714f97f..386b3fea7 100644
--- a/ports/cudnn/CONTROL
+++ b/ports/cudnn/CONTROL
@@ -1,6 +1,6 @@
 Source: cudnn
 Version: 7.6
-Port-Version: 2
+Port-Version: 3
 Description: NVIDIA's cuDNN deep neural network acceleration library
 Build-Depends: cuda
 Supports: (windows|linux)&x64
diff --git a/ports/cudnn/FindCUDNN.cmake b/ports/cudnn/FindCUDNN.cmake
index 5dc2e3392..594fd5dd6 100644
--- a/ports/cudnn/FindCUDNN.cmake
+++ b/ports/cudnn/FindCUDNN.cmake
@@ -26,13 +26,13 @@ include(FindPackageHandleStandardArgs)
 
 if(NOT CUDNN_INCLUDE_DIR)
   find_path(CUDNN_INCLUDE_DIR cudnn.h
-    HINTS ${CUDA_HOME} ${CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN}
+    HINTS ${CUDA_HOME} ${CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN} $ENV{CUDNN_ROOT_DIR}
     PATH_SUFFIXES cuda/include include)
 endif()
 
 if(NOT CUDNN_LIBRARY)
   find_library(CUDNN_LIBRARY cudnn
-    HINTS ${CUDA_HOME} ${CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN}
+    HINTS ${CUDA_HOME} ${CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN} $ENV{CUDNN_ROOT_DIR}
     PATH_SUFFIXES lib lib64 cuda/lib cuda/lib64 lib/x64)
 endif()
 
diff --git a/ports/cudnn/portfile.cmake b/ports/cudnn/portfile.cmake
index 01fc2cbef..5902861c5 100644
--- a/ports/cudnn/portfile.cmake
+++ b/ports/cudnn/portfile.cmake
@@ -11,50 +11,96 @@ vcpkg_check_linkage(ONLY_DYNAMIC_LIBRARY ONLY_DYNAMIC_CRT)
 #note: this port must be kept in sync with CUDA port: every time one is upgraded, the other must be too
 set(CUDNN_VERSION "7.6.0")
 set(CUDNN_FULL_VERSION "${CUDNN_VERSION}-cuda10.1_0")
-
-if(VCPKG_TARGET_IS_WINDOWS)
-  set(CUDNN_DOWNLOAD_LINK "https://anaconda.org/anaconda/cudnn/${CUDNN_VERSION}/download/win-64/cudnn-${CUDNN_FULL_VERSION}.tar.bz2")
-  set(SHA512_CUDNN "c0218407e7bc2b3c1497f1709dedee345bc619603ec0efa094e392888c0d513d645a1241501f9b406f688defa811578f36b49f456eb533535ecd526702156eea")
-  set(CUDNN_OS "windows")
-elseif(VCPKG_TARGET_IS_LINUX)
-  set(CUDNN_DOWNLOAD_LINK "https://anaconda.org/anaconda/cudnn/${CUDNN_VERSION}/download/linux-64/cudnn-${CUDNN_FULL_VERSION}.tar.bz2")
-  set(SHA512_CUDNN "128ccdc0ec24a1133947d7a8eff6cd8edc224134fa5065a11a1a01a99dbaee7d799db1454e0a59e411cf6db244f8c2420c160488a5dd4830addc3578b2011e3d")
-  set(CUDNN_OS "linux")
-endif()
-
-vcpkg_download_distfile(ARCHIVE
-    URLS ${CUDNN_DOWNLOAD_LINK}
-    FILENAME "cudnn-${CUDNN_FULL_VERSION}-${CUDNN_OS}.tar.bz2"
-    SHA512 ${SHA512_CUDNN}
-)
-
-vcpkg_extract_source_archive_ex(
-    OUT_SOURCE_PATH SOURCE_PATH
-    ARCHIVE ${ARCHIVE}
-    NO_REMOVE_ONE_LEVEL
-)
-
 string(REPLACE "." ";" VERSION_LIST ${CUDNN_VERSION})
 list(GET VERSION_LIST 0 CUDNN_VERSION_MAJOR)
 list(GET VERSION_LIST 1 CUDNN_VERSION_MINOR)
 list(GET VERSION_LIST 2 CUDNN_VERSION_PATCH)
 
-if(VCPKG_TARGET_IS_WINDOWS)
-  file(INSTALL "${SOURCE_PATH}/Library/include/cudnn.h" DESTINATION ${CURRENT_PACKAGES_DIR}/include)
-  file(INSTALL "${SOURCE_PATH}/Library/lib/x64/cudnn.lib" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
-  file(INSTALL "${SOURCE_PATH}/Library/bin/cudnn64_${CUDNN_VERSION_MAJOR}.dll" DESTINATION ${CURRENT_PACKAGES_DIR}/bin)
-  file(INSTALL "${SOURCE_PATH}/Library/lib/x64/cudnn.lib" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
-  file(INSTALL "${SOURCE_PATH}/Library/bin/cudnn64_${CUDNN_VERSION_MAJOR}.dll" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/bin)
-elseif(VCPKG_TARGET_IS_LINUX)
-  file(INSTALL "${SOURCE_PATH}/include/cudnn.h" DESTINATION ${CURRENT_PACKAGES_DIR}/include)
-  file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION}" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
-  file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION_MAJOR}" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
-  file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
-  file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION}" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
-  file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION_MAJOR}" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
-  file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
+# Try to find CUDNN if it exists; only download if it doesn't exist
+find_path(CUDNN_INCLUDE_DIR cudnn.h
+  HINTS ${CUDA_HOME} ${CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN} $ENV{CUDNN_ROOT_DIR}
+  PATH_SUFFIXES cuda/include include)
+find_library(CUDNN_LIBRARY cudnn
+  HINTS ${CUDA_HOME} ${CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN} $ENV{CUDNN_ROOT_DIR}
+  PATH_SUFFIXES lib lib64 cuda/lib cuda/lib64 lib/x64)
+if(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn.h")
+  file(READ ${CUDNN_INCLUDE_DIR}/cudnn.h CUDNN_HEADER_CONTENTS)
+  if(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_version.h")
+    file(READ "${CUDNN_INCLUDE_DIR}/cudnn_version.h" CUDNN_VERSION_H_CONTENTS)
+    string(APPEND CUDNN_HEADER_CONTENTS "${CUDNN_VERSION_H_CONTENTS}")
+    unset(CUDNN_VERSION_H_CONTENTS)
+  endif()
+    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}")
+  if(NOT _CUDNN_VERSION_MAJOR)
+    set(_CUDNN_VERSION "?")
+  else()
+    set(_CUDNN_VERSION "${_CUDNN_VERSION_MAJOR}.${_CUDNN_VERSION_MINOR}.${_CUDNN_VERSION_PATCH}")
+  endif()
+endif()
+
+if (CUDNN_INCLUDE_DIR AND CUDNN_LIBRARY AND _CUDNN_VERSION VERSION_GREATER_EQUAL CUDNN_VERSION)
+  set(CUDNN_FOUND TRUE)
+else()
+  set(CUDNN_FOUND FALSE)
 endif()
 
-file(INSTALL "${SOURCE_PATH}/info/LICENSE.txt" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
-file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/FindCUDNN.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
-file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
+# Download CUDNN if not found
+if (CUDNN_FOUND)
+  message(STATUS "Found CUDNN located on system: (include ${CUDNN_INCLUDE_DIR} lib: ${CUDNN_LIBRARY})")
+  set(VCPKG_POLICY_EMPTY_PACKAGE enabled)
+else()
+  message(STATUS "CUDNN not found on system - downloading...")
+  if(VCPKG_TARGET_IS_WINDOWS)
+    set(CUDNN_DOWNLOAD_LINK "https://anaconda.org/anaconda/cudnn/${CUDNN_VERSION}/download/win-64/cudnn-${CUDNN_FULL_VERSION}.tar.bz2")
+    set(SHA512_CUDNN "c0218407e7bc2b3c1497f1709dedee345bc619603ec0efa094e392888c0d513d645a1241501f9b406f688defa811578f36b49f456eb533535ecd526702156eea")
+    set(CUDNN_OS "windows")
+  elseif(VCPKG_TARGET_IS_LINUX)
+    set(CUDNN_DOWNLOAD_LINK "https://anaconda.org/anaconda/cudnn/${CUDNN_VERSION}/download/linux-64/cudnn-${CUDNN_FULL_VERSION}.tar.bz2")
+    set(SHA512_CUDNN "128ccdc0ec24a1133947d7a8eff6cd8edc224134fa5065a11a1a01a99dbaee7d799db1454e0a59e411cf6db244f8c2420c160488a5dd4830addc3578b2011e3d")
+    set(CUDNN_OS "linux")
+  endif()
+
+  vcpkg_download_distfile(ARCHIVE
+      URLS ${CUDNN_DOWNLOAD_LINK}
+      FILENAME "cudnn-${CUDNN_FULL_VERSION}-${CUDNN_OS}.tar.bz2"
+      SHA512 ${SHA512_CUDNN}
+  )
+
+  vcpkg_extract_source_archive_ex(
+      OUT_SOURCE_PATH SOURCE_PATH
+      ARCHIVE ${ARCHIVE}
+      NO_REMOVE_ONE_LEVEL
+  )
+
+  if(VCPKG_TARGET_IS_WINDOWS)
+    file(INSTALL "${SOURCE_PATH}/Library/include/cudnn.h" DESTINATION ${CURRENT_PACKAGES_DIR}/include)
+    file(INSTALL "${SOURCE_PATH}/Library/lib/x64/cudnn.lib" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
+    file(INSTALL "${SOURCE_PATH}/Library/bin/cudnn64_${CUDNN_VERSION_MAJOR}.dll" DESTINATION ${CURRENT_PACKAGES_DIR}/bin)
+    file(INSTALL "${SOURCE_PATH}/Library/lib/x64/cudnn.lib" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
+    file(INSTALL "${SOURCE_PATH}/Library/bin/cudnn64_${CUDNN_VERSION_MAJOR}.dll" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/bin)
+  elseif(VCPKG_TARGET_IS_LINUX)
+    file(INSTALL "${SOURCE_PATH}/include/cudnn.h" DESTINATION ${CURRENT_PACKAGES_DIR}/include)
+    file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION}" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
+    file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION_MAJOR}" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
+    file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
+    file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION}" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
+    file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so.${CUDNN_VERSION_MAJOR}" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
+    file(INSTALL "${SOURCE_PATH}/lib/libcudnn.so" DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib)
+  endif()
+
+  file(INSTALL "${SOURCE_PATH}/info/LICENSE.txt" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
+  file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/FindCUDNN.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
+  file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
+
+endif() # NOT CUDNN_FOUND