add windows arm build

.github/windows_arm64_steps/action.yml

@@ -0,0 +1,28 @@
+name: Build Dependencies(Win-ARM64)
+description: "Common setup steps for Win-ARM64 CI"
+runs:
+  using: "composite"
+  steps:
+    - name: Install LLVM
+      shell: pwsh
+      run: |
+        Invoke-WebRequest https://github.com/llvm/llvm-project/releases/download/llvmorg-20.1.8/LLVM-20.1.8-woa64.exe -UseBasicParsing -OutFile LLVM-woa64.exe
+        $expectedHash = "7c4ac97eb2ae6b960ca5f9caf3ff6124c8d2a18cc07a7840a4d2ea15537bad8e"
+        $fileHash = (Get-FileHash -Path "LLVM-woa64.exe" -Algorithm SHA256).Hash
+        if ($fileHash -ne $expectedHash) {
+            Write-Error "Checksum verification failed. The downloaded file may be corrupted or tampered with."
+            exit 1
+        }
+        Start-Process -FilePath ".\LLVM-woa64.exe" -ArgumentList "/S" -Wait
+        echo "C:\Program Files\LLVM\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+    - name: Install pkgconf via vcpkg
+      shell: pwsh
+      run: |
+        & "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" arm64
+        $env:VCPKG_ROOT = "C:\vcpkg"
+        Set-Location $env:VCPKG_ROOT
+        ./vcpkg install pkgconf:arm64-windows
+        $pkgconfPath = "$env:VCPKG_ROOT\installed\arm64-windows\tools\pkgconf"
+        Copy-Item "$pkgconfPath\pkgconf.exe" "$pkgconfPath\pkg-config.exe" -Force
+        echo "$pkgconfPath" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append

.github/workflows/docs.yml

@@ -1,46 +1,46 @@
-name: MkDocs
+# name: MkDocs
 
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-      - dev
+# on:
+#   push:
+#     branches:
+#       - main
+#   pull_request:
+#     branches:
+#       - main
+#       - dev
 
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout Repository
-      uses: actions/checkout@v2
+# jobs:
+#   deploy:
+#     runs-on: ubuntu-latest
+#     steps:
+#     - name: Checkout Repository
+#       uses: actions/checkout@v2
 
-    - name: Set up Python
-      uses: actions/setup-python@v2
-      with:
-        python-version: '3.x'
+#     - name: Set up Python
+#       uses: actions/setup-python@v2
+#       with:
+#         python-version: '3.x'
 
-    - name: Install Dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install mkdocs-material
-        pip install markdown
-        pip install pymdown-extensions
-        pip install Pygments 
-        pip install mkdocstrings
-        pip install 'mkdocstrings[python]'
-        pip install mkdocs-gen-files
-        pip install mkdocs-literate-nav
-        pip install mkdocs-include-markdown-plugin
+#     - name: Install Dependencies
+#       run: |
+#         python -m pip install --upgrade pip
+#         pip install mkdocs-material
+#         pip install markdown
+#         pip install pymdown-extensions
+#         pip install Pygments 
+#         pip install mkdocstrings
+#         pip install 'mkdocstrings[python]'
+#         pip install mkdocs-gen-files
+#         pip install mkdocs-literate-nav
+#         pip install mkdocs-include-markdown-plugin
 
-    - name: Test Build
-      run: |
-        # mkdocs build --strict # can't use strict mode because of some typ annotations
-        mkdocs build
+#     - name: Test Build
+#       run: |
+#         # mkdocs build --strict # can't use strict mode because of some typ annotations
+#         mkdocs build
 
 
-    - name: Build and Deploy
-      if: github.event_name == 'push'
-      run: |
-        mkdocs gh-deploy --force
+#     - name: Build and Deploy
+#       if: github.event_name == 'push'
+#       run: |
+#         mkdocs gh-deploy --force

.github/workflows/wheels.yml

@@ -26,14 +26,16 @@ jobs:
         # - [macos-14, macosx, arm64, accelerate, "14.0"]
 
         # working
-        - [windows-2025, win, AMD64]
-        - [ubuntu-22.04, manylinux, x86_64]
-        - [macos-14, macosx, arm64, openblas, "12.3"]
-        - [macos-15-intel, macosx, x86_64, openblas, "10.14"]
+        # - [windows-2025, win, AMD64]
+        # - [ubuntu-22.04, manylinux, x86_64]
+        # - [macos-14, macosx, arm64, openblas, "12.3"]
+        - [windows-11-arm, win, ARM64, "", ""]
 
+        # removed 
+        # - [macos-15-intel, macosx, x86_64, openblas, "10.14"]
 
-        python: [["cp39", "3.9"], ["cp310", "3.10"], ["cp311", "3.11"], ["cp312", "3.12"], ["cp313", "3.13"]]
-        # python: [["cp312", "3.12"]]
+        # python: [["cp39", "3.9"], ["cp310", "3.10"], ["cp311", "3.11"], ["cp312", "3.12"], ["cp313", "3.13"]]
+        python: [["cp312", "3.12"]]
 
 
 
@@ -55,6 +57,19 @@ jobs:
         if: ${{ runner.os == 'Windows' }}
 
 
+      - name: Set environment variables for ARM64
+        if: matrix.buildplat[1] == 'win' && matrix.buildplat[2] == 'ARM64'
+        run: |
+            echo "CC=clang-cl" >> $env:GITHUB_ENV
+            echo "CXX=clang-cl" >> $env:GITHUB_ENV
+            echo "FC=flang" >> $env:GITHUB_ENV
+            echo "TARGET_ARCH=${{ matrix.buildplat[2] }}" >> $env:GITHUB_ENV
+
+      - name: Set up Flang and pkgconf for ARM64
+        if: matrix.buildplat[1] == 'win' && matrix.buildplat[2] == 'ARM64'
+        uses: ./.github/windows_arm64_steps
+
+
       - name: Setup macOS
         if: startsWith( matrix.buildplat[0], 'macos-' )
         run: |

.gitignore

@@ -18,6 +18,9 @@ dev_make_install/optvl
 
 tests/test_om_wrapper*_out
 examples/run_opt_om*_out
+examples/*.avl
+examples/*.ps
+examples/opt_output_sweep/
 # ==============================================================================
 # Github python gitignore template
 # ==============================================================================

meson.build

@@ -8,7 +8,6 @@ project(
   default_options: [
     'buildtype=debugoptimized',
     'c_std=c99',
-    'fortran_std=legacy',
   ],
 )
 
@@ -111,13 +110,27 @@ ff_args = ff.get_supported_arguments(
 
 ff_args += [
   '-ffixed-line-length-80', 
-  '-std=legacy',
   '-fdefault-real-8',
   '-fdefault-double-8',
-  '-fPIC',
   '-O2'
 ]
 
+if host_machine.system() != 'windows'
+  ff_args += ['-fPIC']
+endif
+
+# --- add flags for fortran standard ---
+if ff.get_id() == 'gcc'
+  # -std=legacy is not supported by all Fortran compilers, but very useful with
+  # gfortran since it avoids a ton of warnings that we don't care about.
+  # Needs fixing in Meson, see https://github.com/mesonbuild/meson/issues/11633.
+  ff_args += ['-std=legacy']
+elif ff.get_id() == 'llvm-flang'
+
+  ff_args += ['-ffixed-form', '-w']
+
+endif
+
 numpy_nodepr_api = '-DNPY_NO_DEPRECATED_API=NPY_1_9_API_VERSION'
 
 cc_args = [numpy_nodepr_api]
@@ -179,4 +192,5 @@ py3.extension_module('libavl',
 
 )
 
+
 install_subdir('optvl', install_dir: py3.get_install_dir())

pyproject.toml

@@ -33,7 +33,7 @@ version = "2.4.0" # this automatically updates __init__.py and setup_deprecated.
 
 
 [tool.cibuildwheel]
-skip = "cp36-* cp37-* pp* *_ppc64le *_i686 *_s390x"
+skip = "cp38-* pp* *_ppc64le *_i686 *_s390x"
 build-verbosity = "3"
 test-command = "bash {project}/tools/wheels/cibw_test_command.sh {project}"
 

src/amake.f

@@ -577,6 +577,14 @@ SUBROUTINE MAKESURF(ISURF)
 C...        nodal grid associated with vortex strip (aft-panel nodes)
 C...        NOTE: airfoil in plane of wing, but not rotated perpendicular to dihedral;
 C...        retained in (x,z) plane at this point
+
+            ! recompute 
+            ! XLASEC
+            ! XUASEC
+            ! ZLASEC
+            ! ZUASEC
+
+
             CALL AKIMA( XLASEC(1,ISEC,ISURF), ZLASEC(1,ISEC,ISURF), NSL,
      &                  XPT(IVC+1), ZL_L, DSDX )
             CALL AKIMA( XUASEC(1,ISEC,ISURF), ZUASEC(1,ISEC,ISURF), NSL,

src/includes/ADIMEN.INC

@@ -32,11 +32,35 @@
 !              to make it easier to termine the true size in clear_ad_seeds_fast()
 !              I increased some values to avoid matching
 
+      ! ! ! PARAMETER (NVMAX=4000)
+      ! PARAMETER (NVMAX=5000)
+
+      ! ! PARAMETER (NSMAX=400) ! max number of strips
+      ! ! PARAMETER (NSECMAX=401) ! max number of geometry sections
+      ! PARAMETER (NSMAX=500) ! max number of strips
+      ! PARAMETER (NSECMAX=301) ! max number of geometry sections
+      ! PARAMETER (NFMAX=100) ! max number of surfaces
+      ! PARAMETER (NLMAX=502) ! max number of body nodes
+      ! PARAMETER (NBMAX=20)  ! max number of bodies
+
+      ! PARAMETER (NUMAX=6)  ! number of velocity components
+      ! PARAMETER (NDMAX=30) ! max number of control surfaces
+      ! PARAMETER (NGMAX=21) ! max number of design variables
+
+      ! PARAMETER (NRMAX=25)  ! max number of run cases
+      ! PARAMETER (NTMAX=503) ! max number of time values
+
+      ! PARAMETER (NOBMAX=1) ! max number of off body points
+      ! ! PARAMETER (NOBMAX=1000) ! max number of off body points
+
+      ! PARAMETER (ICONX=20) ! 
+      ! PARAMETER (IBX=200)  ! max number of airfoil coordinates
+      ! ! PARAMETER (IBX=300)  ! max number of airfoil coordinates
+
+
       ! PARAMETER (NVMAX=4000)
       PARAMETER (NVMAX=5000)
 
-      ! PARAMETER (NSMAX=400) ! max number of strips
-      ! PARAMETER (NSECMAX=401) ! max number of geometry sections
       PARAMETER (NSMAX=500) ! max number of strips
       PARAMETER (NSECMAX=301) ! max number of geometry sections
       PARAMETER (NFMAX=100) ! max number of surfaces
@@ -51,9 +75,9 @@
       PARAMETER (NTMAX=503) ! max number of time values
 
       PARAMETER (NOBMAX=1) ! max number of off body points
-      ! PARAMETER (NOBMAX=1000) ! max number of off body points
+      ! PARAMETER (NOBMAX=1) ! max number of off body points
 
-      PARAMETER (ICONX=20) ! 
-      PARAMETER (IBX=200)  ! max number of airfoil coordinates
+      PARAMETER (ICONX=2) ! 
+      PARAMETER (IBX=2)  ! max number of airfoil coordinates
       ! PARAMETER (IBX=300)  ! max number of airfoil coordinates
 

src/second.f

@@ -1,12 +1,10 @@
-
       SUBROUTINE SECONDS(TSEC)
       REAL*8 TSEC
 C
-C...SECNDS is a real*4 function that returns seconds.
-C   The value is modified by subtracting the supplied argument.
-C   It acts as in the VMS FORTRAN Manual.
+C...Returns elapsed wall-clock time in seconds
+C   Replacement for non-standard SECNDS intrinsic
 C
-      REAL*4 SECNDS, TIME
-      TIME = 0.0
-      TSEC = SECNDS(TIME)
-      END
+      INTEGER COUNT, COUNT_RATE
+      CALL SYSTEM_CLOCK(COUNT, COUNT_RATE)
+      TSEC = DBLE(COUNT) / DBLE(COUNT_RATE)
+      END

tools/wheels/cibw_test_command.sh

@@ -3,9 +3,12 @@ set -xe
 PROJECT_DIR="$1"
 
 cd $PROJECT_DIR/tests
+python -c "import platform; print(platform.machine())"
+llvm-objdump -p ../optvl/libavl.cp312-win_arm64.pyd | findstr "DLL Name"
 
 # install tesing dependencies
-pip install "scipy<=1.16" psutil "openmdao!=3.38"
+pip install --only-binary :all: scipy 
+pip install psutil "openmdao!=3.38"
 
 
 #HACK: if the tests are not split up the CI runs out of memory...
@@ -14,6 +17,8 @@ pip install "scipy<=1.16" psutil "openmdao!=3.38"
 # testflo -v .
 
 
+
+
 # test package built and installed correctly
 python test_import.py
 python -m unittest -v test_import.py