[CI] Build with libkrylov

.github/workflows/Fortran-tests-linux.yml

@@ -45,13 +45,15 @@ jobs:
                                                -DMUMPS_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
                                                -DMETIS_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
                                                -DHIGHS_INCLUDE_DIR=${{github.workspace}}/dependencies/include/highs \
+                                               -DKRYLOV_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
                                                -DBQPD=${{github.workspace}}/dependencies/lib/libbqpd.a \
                                                -DMUMPS_LIBRARY=${{github.workspace}}/dependencies/lib/libdmumps.a \
                                                -DMUMPS_COMMON_LIBRARY=${{github.workspace}}/dependencies/lib/libmumps_common.a \
                                                -DMUMPS_PORD_LIBRARY=${{github.workspace}}/dependencies/lib/libpord.a \
                                                -DMUMPS_MPISEQ_LIBRARY=${{github.workspace}}/dependencies/lib/libmpiseq.a \
                                                -DHIGHS="${{github.workspace}}/dependencies/lib/libhighs.a;${{github.workspace}}/dependencies/lib/libhighs_extras.a" \
                                                -DMETIS_LIBRARY=${{github.workspace}}/dependencies/lib/libmetis.a \
+                                               -DKRYLOV=${{github.workspace}}/dependencies/lib/libkrylov.so \
                                                -DBLAS_LIBRARIES="${{github.workspace}}/dependencies/lib/libblas.a;${{github.workspace}}/dependencies/lib/libcblas.a" \
                                                -DLAPACK_LIBRARIES=${{github.workspace}}/dependencies/lib/liblapack.a \
                                                -DBUILD_STATIC_LIBS=ON \
@@ -62,7 +64,7 @@ jobs:
 
       - name: Compile Fortran tests
         working-directory: ${{github.workspace}}/interfaces/Fortran
-        run: gfortran example_uno.f90 -o example_uno -L../../build -luno -L${{github.workspace}}/dependencies/lib -lhighs -lhighs_extras -ldmumps -lmumps_common -lmpiseq -lpord -lmetis -lbqpd -llapack -lcblas -lblas -lstdc++
+        run: gfortran example_uno.f90 -o example_uno -L../../build -luno -L${{github.workspace}}/dependencies/lib -lhighs -lhighs_extras -ldmumps -lmumps_common -lmpiseq -lpord -lmetis -lbqpd -lkrylov -llapack -lcblas -lblas -lstdc++
 
       - name: Run Fortran tests
         working-directory: ${{github.workspace}}/interfaces/Fortran

.github/workflows/build-python-wheels.yml

@@ -26,7 +26,9 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  CIBW_TEST_COMMAND: python {project}/interfaces/Python/example/example_hs015.py
+  CIBW_TEST_COMMAND: >
+    python -X faulthandler {project}/interfaces/Python/tests/run_wheel_tests.py
+  CIBW_TEST_REQUIRES: numpy
 
 jobs:
   build_wheels:
@@ -40,7 +42,7 @@ jobs:
           - { os: ubuntu-22.04-arm, shell: bash, build: "*manylinux*" }
           - { os: macos-15, shell: bash, build: "*" }
           - { os: macos-15-intel, shell: bash, build: "*" }
-          - { os: windows-latest, shell: 'msys2 {0}', build: "*" }
+          - { os: windows-latest, shell: 'msys2 {0}', build: "cp311-*" }
     defaults:
       run:
         shell: ${{ matrix.sys.shell }}
@@ -52,6 +54,11 @@ jobs:
         with:
           python-version: "3.11"
 
+      - name: Install unzip (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: C:/msys64/usr/bin/bash -lc "pacman -Sy --noconfirm --needed unzip"
+
       - run: pip install cibuildwheel
         if: runner.os != 'Windows'
 
@@ -72,17 +79,41 @@ jobs:
           echo "LIBGFORTRAN_FOLDER=$LIBGFORTRAN_FOLDER" >> $GITHUB_ENV
           echo "OPENMP_LIB=$(brew --prefix libomp)/lib/libomp.dylib" >> $GITHUB_ENV
 
+      - name: Install matching MinGW (GCC 14.2.0 posix-seh-msvcrt)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          $url = "https://github.com/niXman/mingw-builds-binaries/releases/download/14.2.0-rt_v12-rev0/x86_64-14.2.0-release-posix-seh-msvcrt-rt_v12-rev0.7z"
+          Invoke-WebRequest $url -OutFile mingw.7z
+          7z x mingw.7z -oC:\mingw1420 -y          # clean dir, NOT C:\mingw64
+          # the archive contains a top-level mingw64\ folder, so the compiler ends up at:
+          C:\mingw1420\mingw64\bin\gcc --version
+          C:\mingw1420\mingw64\bin\g++ --version
+
+      - name: Put 14.2 toolchain first on PATH (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: echo "C:\mingw1420\mingw64\bin" | Out-File -FilePath $env:GITHUB_PATH -Append
+
       - name: Build wheels (Linux)
         if: runner.os == 'Linux'
         run: cibuildwheel --output-dir ${{github.workspace}}/wheelhouse
         env:
           CIBW_BUILD: ${{ matrix.sys.build }}
-          CIBW_SKIP: cp*-*_i686 *-win32
-          CIBW_ENVIRONMENT_LINUX:
+          CIBW_SKIP: cp38-* *_i686 *-win32
+          CIBW_MANYLINUX_X86_64_IMAGE: manylinux_2_34
+          CIBW_MANYLINUX_AARCH64_IMAGE: manylinux_2_34
+          CIBW_ENVIRONMENT_LINUX: >
             CMAKE_GENERATOR=Ninja
             CMAKE_BUILD_PARALLEL_LEVEL=$(nproc)
+            LD_LIBRARY_PATH=/project/dependencies/lib:/project/dependencies/lib/julia
+            AUDITWHEEL_PLAT=manylinux_2_35_$(uname -m)
+          # Linux wheels need glibc 2.35; test them in a separate job
+          CIBW_TEST_SKIP: "*-manylinux_*"
           CIBW_BEFORE_ALL_LINUX:
             bash dependencies/scripts/download_dependencies.sh
+          CIBW_REPAIR_WHEEL_COMMAND_LINUX: >
+            auditwheel repair --exclude libkrylov.so --exclude 'libjulia*.so*' --exclude 'libopenlibm*.so*' -w {dest_dir} {wheel}
 
       - name: Build wheels (macOS)
         if: startsWith(matrix.sys.os, 'macos')
@@ -92,6 +123,7 @@ jobs:
           CC: clang
           CXX: clang++
           MACOSX_DEPLOYMENT_TARGET: 15.0
+          CIBW_BUILD: ${{ matrix.sys.build }}
           CIBW_SKIP: cp*-*_i686 *-win32
           CIBW_BEFORE_ALL_MACOS: |
             cat > /tmp/clang_toolchain.cmake << 'EOF'
@@ -114,38 +146,123 @@ jobs:
             CMAKE_TOOLCHAIN_FILE=/tmp/clang_toolchain.cmake
             CMAKE_GENERATOR=Ninja
             CMAKE_BUILD_PARALLEL_LEVEL=$(sysctl -n hw.logicalcpu)
+          CIBW_CONFIG_SETTINGS_MACOS: >
+            cmake.define.KRYLOV=dependencies/lib/libkrylov.dylib
+          CIBW_REPAIR_WHEEL_COMMAND_MACOS: >
+            delocate-wheel --require-archs {delocate_archs} --ignore-missing-dependencies -w {dest_dir} -v {wheel}
 
       - name: Build wheels (Windows)
         if: runner.os == 'Windows'
         run: cibuildwheel --output-dir ${{github.workspace}}/wheelhouse
         shell: pwsh
         env:
           UNO_TOOLCHAIN: mingw
-          CC: C:/mingw64/bin/gcc.exe
-          CXX: C:/mingw64/bin/g++.exe
-          CMAKE_C_COMPILER: C:/mingw64/bin/gcc.exe
-          CMAKE_CXX_COMPILER: C:/mingw64/bin/g++.exe
+          CC: C:/mingw1420/mingw64/bin/gcc.exe
+          CXX: C:/mingw1420/mingw64/bin/g++.exe
+          CMAKE_C_COMPILER: C:/mingw1420/mingw64/bin/gcc.exe
+          CMAKE_CXX_COMPILER: C:/mingw1420/mingw64/bin/g++.exe
+          CIBW_BUILD: ${{ matrix.sys.build }}
           CIBW_SKIP: cp314t-* cp*-*_i686 *-win32
+          CIBW_TEST_SKIP: "*-win_amd64"
           CIBW_BEFORE_ALL_WINDOWS: >
             C:/msys64/usr/bin/bash -lc "cd \"$(cygpath -u '{package}')\" && ./dependencies/scripts/download_dependencies.sh" &&
             pwsh -Command "Get-ChildItem -Path '{package}/dependencies' -Recurse |
             ForEach-Object { $_.LastWriteTime = Get-Date }"
           CIBW_REPAIR_WHEEL_COMMAND_WINDOWS: >
-            pwsh -Command "$env:SOURCE_DATE_EPOCH='315532800';
-            delvewheel repair --add-path 'C:/mingw64/bin;dependencies/bin' -w {dest_dir} {wheel}"
+            delvewheel repair --no-mangle-all
+            --exclude "libstdc++-6.dll;libgcc_s_seh-1.dll;libwinpthread-1.dll;libgfortran-5.dll;libquadmath-0.dll;libgomp-1.dll"
+            --add-path "C:/mingw1420/mingw64/bin;dependencies/bin"
+            -w {dest_dir} {wheel}
           CIBW_ENVIRONMENT_WINDOWS: >
+            SOURCE_DATE_EPOCH=315532800
             CMAKE_BUILD_PARALLEL_LEVEL=$NUMBER_OF_PROCESSORS
             CMAKE_GENERATOR="MinGW Makefiles"
-            CMAKE_MAKE_PROGRAM=C:/mingw64/bin/mingw32-make.exe
-            CMAKE_Fortran_COMPILER=C:/mingw64/bin/gfortran.exe
+            CMAKE_MAKE_PROGRAM=C:/mingw1420/mingw64/bin/mingw32-make.exe
+            CMAKE_C_COMPILER=C:/mingw1420/mingw64/bin/gcc.exe
+            CMAKE_CXX_COMPILER=C:/mingw1420/mingw64/bin/g++.exe
+            CMAKE_Fortran_COMPILER=C:/mingw1420/mingw64/bin/gfortran.exe
           CIBW_CONFIG_SETTINGS_WINDOWS: >
             cmake.define.METIS_LIBRARY=dependencies/bin/libmetis.dll
+            cmake.define.KRYLOV=dependencies/bin/libkrylov.dll
+            cmake.define.AUXILIARY_LIBRARIES=dependencies/lib/libstdc++.a
+            cmake.define.CMAKE_BUILD_TYPE=RelWithDebInfo
+
+      - name: Test with native backtrace (Windows, temporary)
+        if: always() && runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Continue'
+
+          # --- pick the fresh cp311 wheel and prove its provenance ---
+          $whl = Get-ChildItem ${{ github.workspace }}/wheelhouse/*cp311*win_amd64.whl | Select-Object -First 1
+          if (-not $whl) { Write-Error "no cp311 win_amd64 wheel in wheelhouse"; exit 1 }
+          Write-Host "=== Testing: $($whl.FullName)  (built $($whl.LastWriteTime)) ==="
+
+          python -m pip install --force-reinstall --no-deps $whl.FullName
+          python -m pip install numpy
+
+          $pyd = "C:\hostedtoolcache\windows\Python\3.11.9\x64\Lib\site-packages\unopy\unopy.cp311-win_amd64.pyd"
+          Write-Host "=== pyd built: $((Get-Item $pyd).LastWriteTime) ==="
+
+          # --- is the binding registered, and is our error string in the binary? ---
+          python -c "import unopy; print('has test_libkrylov:', hasattr(unopy, 'test_libkrylov'))"
+          $u = ($pyd -replace '\\','/')
+          C:/msys64/usr/bin/bash -lc "grep -a -c 'krylov_workspace_create failed' '$u' || echo 'error string NOT found'"
+
+          # --- native backtrace via gdb (reads MinGW DWARF; cdb cannot) ---
+          $py = (Get-Command python).Source
+          $env:PYTHONHOME = ""          # stop MinGW's opt\Python from hijacking
+          $gdb = "C:/mingw1420/mingw64/bin/gdb.exe"
+          Write-Host "=== gdb: $gdb ; python: $py ==="
+          & $gdb --batch `
+            -ex "set pagination off" `
+            -ex "run" `
+            -ex "bt full" `
+            -ex "thread apply all bt" `
+            --args $py -c "import unopy; unopy.test_libkrylov()"
 
       - name: Store artifacts
         uses: actions/upload-artifact@v4
+        if: success() || failure()
         with:
           name: cibw-wheels-${{ matrix.sys.os }}-${{ strategy.job-index }}
-          path: wheelhouse/*.whl
+          path: ${{ github.workspace }}/wheelhouse/*.whl
+          if-no-files-found: warn
+
+  # test the Linux wheels with glibc ≥ 2.35
+  test-linux-wheels:
+    name: Test Linux wheels (${{ matrix.runs-on }})
+    needs: build_wheels
+    runs-on: ${{ matrix.runs-on }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - runs-on: ubuntu-24.04
+            pattern: cibw-wheels-ubuntu-latest-*
+          - runs-on: ubuntu-24.04-arm
+            pattern: cibw-wheels-ubuntu-22.04-arm-*
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: ${{ matrix.pattern }}
+          path: wheelhouse
+          merge-multiple: true
+
+      - uses: actions/setup-python@v5
+        with: { python-version: '3.11' }
+
+      - name: Run tests
+        shell: bash
+        run: |
+          ls -R wheelhouse || { echo "no wheels downloaded"; exit 1; }
+          python -m pip install numpy
+          python -m pip install --no-index --find-links "$GITHUB_WORKSPACE/wheelhouse" --only-binary=:all: unopy
+          cd "$RUNNER_TEMP"   # run from outside the repo so 'import unopy' hits the wheel, not the source
+          python "$GITHUB_WORKSPACE/interfaces/Python/tests/run_wheel_tests.py"
 
   build_sdist:
     name: Build source distribution
@@ -277,4 +394,4 @@ jobs:
 
       - name: Run example
         working-directory: ${{github.workspace}}/interfaces/Python/example
-        run: python example_hs015.py
+        run: python example_hs015.py

.github/workflows/build.yml

@@ -204,6 +204,7 @@ jobs:
           -DMUMPS_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
           -DMETIS_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
           -DHIGHS_INCLUDE_DIR=${{github.workspace}}/dependencies/include/highs \
+          -DKRYLOV_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
           -DBQPD=${{github.workspace}}/dependencies/lib/libbqpd.a \
           -DMETIS_LIBRARY=${{github.workspace}}/dependencies/lib/libmetis.a \
           -DMUMPS_LIBRARY=${{github.workspace}}/dependencies/lib/libdmumps.a \
@@ -213,6 +214,7 @@ jobs:
           -DBLAS_LIBRARIES="${{github.workspace}}/dependencies/lib/libcblas.a;${{github.workspace}}/dependencies/lib/libblas.a" \
           -DLAPACK_LIBRARIES=${{github.workspace}}/dependencies/lib/liblapack.a \
           -DHIGHS="${{github.workspace}}/dependencies/lib/libhighs.a;${{github.workspace}}/dependencies/lib/libhighs_extras.a" \
+          -DKRYLOV=${{github.workspace}}/dependencies/lib/libkrylov.so \
           -DBUILD_STATIC_LIBS=ON \
           -DBUILD_SHARED_LIBS=ON
 
@@ -227,6 +229,7 @@ jobs:
           -DMUMPS_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
           -DMETIS_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
           -DHIGHS_INCLUDE_DIR=${{github.workspace}}/dependencies/include/highs \
+          -DKRYLOV_INCLUDE_DIR=${{github.workspace}}/dependencies/include \
           -DBQPD=${{github.workspace}}/dependencies/lib/libbqpd.a \
           -DMETIS_LIBRARY=${{github.workspace}}/dependencies/lib/libmetis.a \
           -DMUMPS_LIBRARY=${{github.workspace}}/dependencies/lib/libdmumps.a \
@@ -236,6 +239,7 @@ jobs:
           -DBLAS_LIBRARIES="${{github.workspace}}/dependencies/lib/libcblas.a;${{github.workspace}}/dependencies/lib/libblas.a" \
           -DLAPACK_LIBRARIES=${{github.workspace}}/dependencies/lib/liblapack.a \
           -DHIGHS="${{github.workspace}}/dependencies/lib/libhighs.a;${{github.workspace}}/dependencies/lib/libhighs_extras.a" \
+          -DKRYLOV=${{github.workspace}}/dependencies/lib/libkrylov.so \
           -DBUILD_STATIC_LIBS=ON \
           -DBUILD_SHARED_LIBS=ON