Add CI workflow...

Author: QuantumLiquids

.github/workflows/ci.yml

@@ -0,0 +1,76 @@
+name: CI
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build and Test on Ubuntu 24.04
+    runs-on: ubuntu-24.04
+    
+    env:
+      OMP_NUM_THREADS: 2
+      
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Install System Dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+          build-essential \
+          cmake \
+          g++-14 \
+          libopenblas-dev \
+          liblapack-dev \
+          liblapacke-dev \
+          libopenmpi-dev \
+          openmpi-bin \
+          libgtest-dev \
+          libbenchmark-dev
+
+    - name: Configure CMake (Step 1 - Build HPTT)
+      run: |
+        mkdir build
+        cd build
+        cmake .. \
+          -DCMAKE_CXX_COMPILER=g++-14 \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DHP_NUMERIC_USE_OPENBLAS=ON \
+          -DQLTEN_COMPILE_HPTT_LIB=ON \
+          -DQLTEN_BUILD_UNITTEST=OFF \
+          -DQLTEN_BUILD_EXAMPLES=OFF
+
+    - name: Build HPTT
+      run: |
+        cd build
+        make -j4
+
+    - name: Configure CMake (Step 2 - Enable Unit Tests)
+      run: |
+        cd build
+        cmake .. \
+          -DCMAKE_CXX_COMPILER=g++-14 \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DHP_NUMERIC_USE_OPENBLAS=ON \
+          -DCMAKE_CXX_STANDARD_LIBRARIES="-llapacke" \
+          -DQLTEN_COMPILE_HPTT_LIB=ON \
+          -DQLTEN_BUILD_UNITTEST=ON \
+          -DQLTEN_BUILD_EXAMPLES=OFF
+        # explicily link lapacke because ubuntu splits openblas and lapacke
+    - name: Build Project and Tests
+      run: |
+        cd build
+        make -j4
+
+    - name: Run Tests
+      run: |
+        cd build
+        export OMPI_MCA_rmaps_base_oversubscribe=1
+        ctest --output-on-failure
+

README.md

@@ -29,7 +29,7 @@ while HPTT only requires a basic C++ compiler and CMake.
 To build test cases or develop programs like *TRG*, *DMRG* or *TDVP* based on TensorToolkit, the following are required:
 
 - **C++ Compiler:** C++17 or later
-- **Build System:** CMake 3.12 or newer
+- **Build System:** CMake 3.27 or newer
 - **Math Libraries:** BLAS and LAPACK
 - **Parallelization:** MPI
 - **GPU Acceleration (optional):** CUDA compiler, CUDA toolkit (cuBLAS, cuSolver, cuTensor2)

cmake/Modules/MathBackend.cmake

@@ -79,6 +79,13 @@ elseif (HP_NUMERIC_USE_OPENBLAS)
         set(LAPACK_ROOT "/opt/homebrew/opt/lapack")
         set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} ${OpenBLAS_ROOT} ${LAPACK_ROOT})
         set(BLAS_INCLUDE_DIRS "${OpenBLAS_ROOT}/include" CACHE STRING "" FORCE)
+    elseif (UNIX AND NOT APPLE) # use for github action
+        # On Linux (e.g. Ubuntu), OpenBLAS headers are usually in /usr/include/openblas or /usr/include
+        if (EXISTS "/usr/include/openblas/cblas.h")
+            set(BLAS_INCLUDE_DIRS "/usr/include/openblas" CACHE STRING "" FORCE)
+        elseif (EXISTS "/usr/include/cblas.h")
+            set(BLAS_INCLUDE_DIRS "/usr/include" CACHE STRING "" FORCE)
+        endif()
     endif ()
 endif ()