Merged PR 22483: Make C++17 the official standard for Marian

Make C++17 the official standard for Marian

CHANGELOG.md

@@ -14,6 +14,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 
+- Changed minimal C++ standard to C++-17
+
 ## [1.11.0] - 2022-02-08
 
 ### Added

CMakeLists.txt

@@ -6,7 +6,7 @@ if (POLICY CMP0074)
 endif ()
 
 project(marian CXX C)
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(BUILD_ARCH native CACHE STRING "Compile for this CPU architecture.")
 
@@ -91,10 +91,11 @@ if(MSVC)
   # C4310: cast truncates constant value
   # C4324: 'marian::cpu::int16::`anonymous-namespace'::ScatterPut': structure was padded due to alignment specifier
   # C4702: unreachable code; note it is also disabled globally in the VS project file
+  # C4996: warning STL4015: The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17
   if(USE_SENTENCEPIECE)
-    set(DISABLE_GLOBALLY "/wd\"4310\" /wd\"4324\" /wd\"4702\" /wd\"4100\"")
+    set(DISABLE_GLOBALLY "/wd\"4310\" /wd\"4324\" /wd\"4702\" /wd\"4996\" /wd\"4100\"")
   else()
-    set(DISABLE_GLOBALLY "/wd\"4310\" /wd\"4324\" /wd\"4702\"")
+    set(DISABLE_GLOBALLY "/wd\"4310\" /wd\"4324\" /wd\"4702\" /wd\"4996\"")
   endif()
 
   # set(INTRINSICS "/arch:AVX")

VERSION

@@ -1 +1 @@
-v1.11.0
+v1.11.1

azure-pipelines.yml

@@ -192,6 +192,9 @@ stages:
     displayName: Ubuntu
     timeoutInMinutes: 90
 
+    # Minimal tested configurations for marian-dev v1.11 and C++17:
+    # * Ubuntu 16.04, GCC 7.5, CMake 3.10.2, CUDA 9.2 (probably GCC 6 would work too)
+    # * Ubuntu 18.04, GCC 7.5, CMake 3.12.2, CUDA 10.0
     strategy:
       matrix:
         ################################################################
@@ -319,51 +322,6 @@ stages:
       displayName: Print versions
       workingDirectory: build
 
-  ######################################################################
-  - job: BuildUbuntuMinimal
-    condition: eq(${{ parameters.runBuilds }}, true)
-    displayName: Ubuntu CPU+GPU gcc-7 cmake 3.5
-
-    pool:
-      vmImage: ubuntu-18.04
-
-    steps:
-    - checkout: self
-      submodules: true
-
-    # The script simplifies installation of different versions of CUDA.
-    - bash: ./scripts/ci/install_cuda_ubuntu.sh "10.0"
-      displayName: Install CUDA
-
-    # CMake 3.5.1 is the minimum version supported
-    - bash: |
-        wget -nv https://cmake.org/files/v3.5/cmake-3.5.1-Linux-x86_64.tar.gz
-        tar zxf cmake-3.5.1-Linux-x86_64.tar.gz
-        ./cmake-3.5.1-Linux-x86_64/bin/cmake --version
-      displayName: Download CMake
-
-    # GCC 5 is the minimum version supported
-    - bash: |
-        /usr/bin/gcc-7 --version
-        mkdir -p build
-        cd build
-        CC=/usr/bin/gcc-7 CXX=/usr/bin/g++-7 CUDAHOSTCXX=/usr/bin/g++-7 \
-        ../cmake-3.5.1-Linux-x86_64/bin/cmake .. \
-          -DCOMPILE_CPU=on \
-          -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-10.0
-      displayName: Configure CMake
-
-    - bash: make -j3
-      displayName: Compile
-      workingDirectory: build
-
-    - bash: |
-        ./marian --version
-        ./marian-decoder --version
-        ./marian-scorer --version
-      displayName: Print versions
-      workingDirectory: build
-
   ######################################################################
   - job: BuildMacOS
     condition: eq(${{ parameters.runBuilds }}, true)

scripts/ci/install_cuda_ubuntu.sh

@@ -60,6 +60,13 @@ CUDA_PACKAGES_IN=(
 
 CUDA_PACKAGES=""
 for package in "${CUDA_PACKAGES_IN[@]}"; do
+    # @todo This is not perfect. Should probably provide a separate list for diff versions
+    # cuda-compiler-X-Y if CUDA >= 9.1 else cuda-nvcc-X-Y
+    if [[ "${package}" == "nvcc" ]] && version_ge "$CUDA_VERSION_MAJOR_MINOR" "9.1" ; then
+        package="compiler"
+    elif [[ "${package}" == "compiler" ]] && version_lt "$CUDA_VERSION_MAJOR_MINOR" "9.1" ; then
+        package="nvcc"
+    fi
     # Build the full package name and append to the string.
     CUDA_PACKAGES+=" cuda-${package}-${CUDA_MAJOR}-${CUDA_MINOR}"
 done
@@ -72,8 +79,8 @@ echo "CUDA_PACKAGES ${CUDA_PACKAGES}"
 
 PIN_FILENAME="cuda-ubuntu${UBUNTU_VERSION}.pin"
 PIN_URL="https://developer.download.nvidia.com/compute/cuda/repos/ubuntu${UBUNTU_VERSION}/x86_64/${PIN_FILENAME}"
-APT_KEY_URL="http://developer.download.nvidia.com/compute/cuda/repos/ubuntu${UBUNTU_VERSION}/x86_64/7fa2af80.pub"
-REPO_URL="http://developer.download.nvidia.com/compute/cuda/repos/ubuntu${UBUNTU_VERSION}/x86_64/"
+APT_KEY_URL="https://developer.download.nvidia.com/compute/cuda/repos/ubuntu${UBUNTU_VERSION}/x86_64/7fa2af80.pub"
+REPO_URL="https://developer.download.nvidia.com/compute/cuda/repos/ubuntu${UBUNTU_VERSION}/x86_64/"
 
 echo "PIN_FILENAME ${PIN_FILENAME}"
 echo "PIN_URL ${PIN_URL}"

src/3rd_party/half_float/umHalf.inl

@@ -344,7 +344,7 @@ inline HalfFloat operator+ (HalfFloat one, HalfFloat two)
 
 	// compute the difference between the two exponents. shifts with negative
 	// numbers are undefined, thus we need two code paths
-	register int expDiff = one.IEEE.Exp - two.IEEE.Exp;
+	/*register*/ int expDiff = one.IEEE.Exp - two.IEEE.Exp;
 
 	if (0 == expDiff)
 	{