Merge pull request #111 from krasznaa/ARM64Support-main-20231014

.github/workflows/builds.yml

@@ -40,7 +40,7 @@ jobs:
     - uses: actions/checkout@v2
     # Run the CMake configuration.
     - name: Configure
-      run: cmake --preset default
+      run: cmake --preset default-x86-64
                  -S ${{ github.workspace }} -B build
                  -G "${{ matrix.PLATFORM.GENERATOR }}"
     # Perform the build.

CMakePresets.json

@@ -52,10 +52,15 @@
          }
       },
       {
-         "name" : "default",
-         "displayName" : "Default Developer Configuration",
+         "name" : "default-x86-64",
+         "displayName" : "Default Developer Configuration for x86_64",
          "inherits" : [ "vecmem", "eigen", "vc", "fastor" ]
       },
+      {
+         "name" : "default-aarch64",
+         "displayName" : "Default Developer Configuration for ARM64",
+         "inherits" : [ "vecmem", "eigen", "vc" ]
+      },
       {
          "name" : "cuda",
          "displayName" : "CUDA Developer Configuration",

extern/fastor/CMakeLists.txt

@@ -1,6 +1,6 @@
 # Algebra plugins library, part of the ACTS project (R&D line)
 #
-# (c) 2022 CERN for the benefit of the ACTS project
+# (c) 2022-2023 CERN for the benefit of the ACTS project
 #
 # Mozilla Public License Version 2.0
 
@@ -11,6 +11,11 @@ include( FetchContent )
 # Tell the user what's happening.
 message( STATUS "Building Fastor as part of the Algebra Plugins project" )
 
+# Warn the user, if they are not on an x86 platform.
+if( NOT "${CMAKE_SYSTEM_PROCESSOR}" MATCHES "x86_64" )
+   message( WARNING "Fastor is only supported on the x86 platforms" )
+endif()
+
 # Declare where to get Fastor from.
 # We need to use this alternative syntax for FetchContent_Declare because the
 # latest release for Fastor does not have a CMakeLists.txt file.
@@ -40,8 +45,8 @@ endif()
 
 # Treat the Fastor headers as "system headers", to avoid getting warnings from
 # them.
-get_target_property( _incDirs Fastor INTERFACE_INCLUDE_DIRECTORIES ) 
-target_include_directories( Fastor  
+get_target_property( _incDirs Fastor INTERFACE_INCLUDE_DIRECTORIES )
+target_include_directories( Fastor
    SYSTEM INTERFACE ${_incDirs} )
 unset( _incDirs )