ref: Update CI and allow for c++20

.github/ci_setup.sh

@@ -1,6 +1,6 @@
 # Algebra plugins library, part of the ACTS project (R&D line)
 #
-# (c) 2021-2023 CERN for the benefit of the ACTS project
+# (c) 2021-2024 CERN for the benefit of the ACTS project
 #
 # Mozilla Public License Version 2.0
 #
@@ -15,11 +15,14 @@ PLATFORM_NAME=$1
 
 # Set up the correct environment for the SYCL tests.
 if [ "${PLATFORM_NAME}" = "SYCL" ]; then
-   source /opt/intel/oneapi/setvars.sh --include-intel-llvm
+   if [ -f "/opt/intel/oneapi/setvars.sh" ]; then
+      source /opt/intel/oneapi/setvars.sh --include-intel-llvm
+   fi
    # Use clang/clang++ instead of icx/icpx, to avoid some aggressive math
    # optimizations that break some tests.
    export CC=`which clang`
    export CXX=`which clang++`
    export SYCLCXX="${CXX} -fsycl"
-   export SYCL_DEVICE_FILTER=host
+   export ONEAPI_DEVICE_SELECTOR=opencl:cpu
+   export SYCLFLAGS="-fsycl -fsycl-targets=spir64"
 fi

.github/workflows/builds.yml

@@ -1,6 +1,6 @@
 # Algebra plugins library, part of the ACTS project (R&D line)
 #
-# (c) 2021-2023 CERN for the benefit of the ACTS project
+# (c) 2021-2024 CERN for the benefit of the ACTS project
 #
 # Mozilla Public License Version 2.0
 
@@ -13,6 +13,11 @@ on:
       - main
       - 'release/**'
 
+# Cancel existing jobs on new pushes.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 # All the different build/test jobs.
 jobs:
 
@@ -37,11 +42,13 @@ jobs:
     # The build/test steps to execute.
     steps:
     # Use a standard checkout of the code.
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     # Run the CMake configuration.
     - name: Configure
       run: cmake --preset default-x86-64
                  -DALGEBRA_PLUGINS_INCLUDE_FASTOR=${{ (matrix.PLATFORM.OS == 'macos-latest') && 'OFF' || 'ON' }}
+                 -DALGEBRA_PLUGINS_INCLUDE_VC=${{ (matrix.PLATFORM.OS == 'windows-latest') && 'OFF' || 'ON' }}
+                 -DALGEBRA_PLUGINS_SETUP_VC=${{ (matrix.PLATFORM.OS == 'windows-latest') && 'OFF' || 'ON' }}
                  -S ${{ github.workspace }} -B build
                  -G "${{ matrix.PLATFORM.GENERATOR }}"
     # Perform the build.
@@ -62,29 +69,37 @@ jobs:
         BUILD_TYPE: ["Release", "Debug"]
         PLATFORM:
           - NAME: "HOST"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404:56"
             OPTIONS: --preset eigen -DALGEBRA_PLUGINS_USE_SYSTEM_EIGEN3=TRUE
+            RUN_TESTS: true
           - NAME: "HOST"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404:56"
             OPTIONS: --preset eigen
+            RUN_TESTS: true
           - NAME: "HOST"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404:56"
             OPTIONS: -DALGEBRA_PLUGINS_INCLUDE_SMATRIX=TRUE
+            RUN_TESTS: true
           - NAME: "HOST"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404:56"
             OPTIONS: --preset vc
+            RUN_TESTS: true
           - NAME: "HOST"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404:56"
             OPTIONS: --preset vecmem
+            RUN_TESTS: true
           - NAME: "HOST"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404:56"
             OPTIONS: --preset fastor
+            RUN_TESTS: true
           - NAME: "CUDA"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004_cuda:v43"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404_cuda:67"
             OPTIONS: --preset cuda
-          - NAME: "SYCL"
-            CONTAINER: "ghcr.io/acts-project/ubuntu2004_oneapi:v43"
+            RUN_TESTS: false
+          - NAME: "SYCL HOST"
+            CONTAINER: "ghcr.io/acts-project/ubuntu2404_oneapi:56"
             OPTIONS: --preset sycl
+            RUN_TESTS: false
 
     # The system to run on.
     runs-on: ubuntu-latest
@@ -98,7 +113,7 @@ jobs:
     # The build/test steps to execute.
     steps:
     # Use a standard checkout of the code.
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     # Run the CMake configuration.
     - name: Configure
       run: |
@@ -111,7 +126,7 @@ jobs:
         cmake --build build
     # Run the unit test(s).
     - name: Test
-      if: "matrix.PLATFORM.NAME != 'CUDA'"
+      if: "matrix.PLATFORM.RUN_TESTS"
       run: |
         cd build
         source ${GITHUB_WORKSPACE}/.github/ci_setup.sh ${{ matrix.PLATFORM.NAME }}

.github/workflows/checks.yml

@@ -1,6 +1,6 @@
 # Algebra plugins library, part of the ACTS project (R&D line)
 #
-# (c) 2021-2022 CERN for the benefit of the ACTS project
+# (c) 2021-2024 CERN for the benefit of the ACTS project
 #
 # Mozilla Public License Version 2.0
 
@@ -13,15 +13,20 @@ on:
       - main
       - 'release/**'
 
+# Cancel existing jobs on new pushes.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   format:
     runs-on: ubuntu-latest
     container: ghcr.io/acts-project/format10:v11
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Check
         run: .github/check_format.sh .
-      - uses: actions/upload-artifact@v1
+      - uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: changed

CMakeLists.txt

@@ -1,6 +1,6 @@
 # Algebra plugins library, part of the ACTS project (R&D line)
 #
-# (c) 2021-2023 CERN for the benefit of the ACTS project
+# (c) 2021-2024 CERN for the benefit of the ACTS project
 #
 # Mozilla Public License Version 2.0
 
@@ -9,11 +9,15 @@ cmake_minimum_required( VERSION 3.14 )
 project( algebra-plugins VERSION 0.23 LANGUAGES CXX )
 
 # Set up the used C++ standard.
-set( CMAKE_CXX_STANDARD 17 CACHE STRING "The (host) C++ standard to use" )
+set( CMAKE_CXX_STANDARD 20 CACHE STRING "The (host) C++ standard to use" )
 set( CMAKE_CXX_EXTENSIONS FALSE CACHE BOOL "Disable (host) C++ extensions" )
-set( CMAKE_CUDA_STANDARD 17 CACHE STRING "The (CUDA) C++ standard to use" )
+set( CMAKE_CUDA_STANDARD 20 CACHE STRING "The (CUDA) C++ standard to use" )
 set( CMAKE_CUDA_EXTENSIONS FALSE CACHE BOOL "Disable (CUDA) C++ extensions" )
-set( CMAKE_SYCL_STANDARD 17 CACHE STRING "The (SYCL) C++ standard to use" )
+set( CMAKE_SYCL_STANDARD 20 CACHE STRING "The (SYCL) C++ standard to use" )
+
+if(${CMAKE_CXX_STANDARD} LESS 20)
+   message(SEND_ERROR "CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}, but algebra-plugins requires C++>=20")
+endif()
 
 # Standard CMake include(s).
 include( CTest )

CMakePresets.json

@@ -74,7 +74,8 @@
          "displayName" : "SYCL Developer Configuration",
          "inherits" : [ "vecmem", "eigen" ],
          "cacheVariables" : {
-            "ALGEBRA_PLUGINS_TEST_SYCL" : "TRUE"
+            "ALGEBRA_PLUGINS_TEST_SYCL" : "TRUE",
+            "VECMEM_BUILD_SYCL_LIBRARY" : "TRUE"
          }
       }
    ]

extern/vecmem/CMakeLists.txt

@@ -13,7 +13,7 @@ message( STATUS "Building VecMem as part of the Algebra Plugins project" )
 
 # Declare where to get VecMem from.
 set( ALGEBRA_PLUGINS_VECMEM_SOURCE
-   "URL;https://github.com/acts-project/vecmem/archive/refs/tags/v1.5.0.tar.gz;URL_MD5;3cc5a3bb14b93f611513535173a6be28"
+   "URL;https://github.com/acts-project/vecmem/archive/refs/tags/v1.8.0.tar.gz;URL_MD5;afddf52d9568964f25062e1c887246b7"
    CACHE STRING "Source for VecMem, when built as part of this project" )
 mark_as_advanced( ALGEBRA_PLUGINS_VECMEM_SOURCE )
 

frontend/vc_aos/include/algebra/vc_aos.hpp

@@ -49,16 +49,15 @@ using cmath::element;
 
 /// Function extracting a slice from matrix44 - const
 template <std::size_t SIZE, template <typename, std::size_t> class array_t,
-          typename value_t, std::size_t N,
-          std::enable_if_t<SIZE <= 4, bool> = true>
-ALGEBRA_HOST_DEVICE inline const auto& vector(
-    const storage::matrix44<array_t, value_t, N>& m,
-    std::size_t
+          typename value_t, std::size_t N>
+requires(SIZE <= 4) ALGEBRA_HOST_DEVICE inline const
+    auto& vector(const storage::matrix44<array_t, value_t, N>& m,
+                 std::size_t
 #ifndef NDEBUG
-        row
+                     row
 #endif  // not NDEBUG
-    ,
-    std::size_t col) {
+                 ,
+                 std::size_t col) {
 
   assert(row == 0);
   assert(col < 4);
@@ -82,16 +81,15 @@ ALGEBRA_HOST_DEVICE inline const auto& vector(
 
 /// Function extracting a slice from matrix44 - non-const
 template <std::size_t SIZE, template <typename, std::size_t> class array_t,
-          typename value_t, std::size_t N,
-          std::enable_if_t<SIZE <= 4, bool> = true>
-ALGEBRA_HOST_DEVICE inline auto& vector(
-    storage::matrix44<array_t, value_t, N>& m,
-    std::size_t
+          typename value_t, std::size_t N>
+requires(SIZE <= 4) ALGEBRA_HOST_DEVICE
+    inline auto& vector(storage::matrix44<array_t, value_t, N>& m,
+                        std::size_t
 #ifndef NDEBUG
-        row
+                            row
 #endif  // not NDEBUG
-    ,
-    std::size_t col) {
+                        ,
+                        std::size_t col) {
 
   assert(row == 0);
   assert(col < 4);