Fix PL_DEVICE

.github/workflows/tests_linux_x86_mpich.yml

@@ -17,7 +17,7 @@ on:
   pull_request:
 
 env:
-  COVERAGE_FLAGS: "--cov=pennylane_lightning_gpu --cov-report=term-missing --cov-report=xml:./coverage.xml --no-flaky-report -p no:warnings --tb=native" 
+  COVERAGE_FLAGS: "--cov=pennylane_lightning --cov-report=term-missing --cov-report=xml:./coverage.xml --no-flaky-report -p no:warnings --tb=native" 
   GCC_VERSION: 11
   OMP_NUM_THREADS: "2"
   CI_CUDA_ARCH: 86
@@ -28,7 +28,7 @@ concurrency:
 
 jobs:
   cpp_mpich_tests:
-    # if: contains(github.event.pull_request.labels.*.name, 'ci:use-multi-gpu-runner') || (inputs.lightning-gpu-version != '' && inputs.pennylane-version != '')
+    if: contains(github.event.pull_request.labels.*.name, 'ci:use-multi-gpu-runner') || (inputs.lightning-gpu-version != '' && inputs.pennylane-version != '')
 
     runs-on:
       - self-hosted
@@ -44,8 +44,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          # Checkout entire git-history if workflow_call passes 'stable' as we need to find the most recent git-tag
-          fetch-depth: ${{ inputs.lightning-gpu-version == 'stable' && 0 || 1 }}
+          fetch-tags: true
 
       - name: Switch to stable build of Lightning-GPU
         if: inputs.lightning-gpu-version == 'stable'
@@ -131,23 +130,23 @@ jobs:
             module use /opt/modules/
             module load mpich
             module unload mpich
+            export CUQUANTUM_SDK=$(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
             export PATH=$PATH:/usr/local/cuda/bin:/opt/mpi/mpich/include:/opt/mpi/mpich/bin
-            export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/opt/mpi/mpich/lib:$(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
+            export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/opt/mpi/mpich/lib:$CUQUANTUM_SDK
             cmake . -BBuild \
               -DCMAKE_PREFIX_PATH=/opt/mpi/mpich/ \
-              -DPLLGPU_ENABLE_MPI=On \
+              -DPLLGPU_ENABLE_MPI=ON \
               -DCMAKE_BUILD_TYPE=RelWithDebInfo \
               -DPLLGPU_BUILD_TESTS=ON \
               -DCMAKE_CXX_COMPILER="$(which g++-${{ env.GCC_VERSION }})" \
-              -DLIGHTNING_RELEASE_TAG="master" \
               -DCMAKE_CUDA_COMPILER="/usr/local/cuda/bin/nvcc" \
               -DCMAKE_CUDA_ARCHITECTURES="86" \
               -DPython_EXECUTABLE:FILE="${{ steps.python_path.outputs.python }}" \
               -G Ninja
             cmake --build ./Build
             cd ./Build
             mkdir -p ./tests/results
-            /opt/mpi/mpich/bin/mpirun -np 2 ./pennylane_lightning_gpu/src/tests/mpi_runner --order lex --reporter junit --out ./tests/results/report_${{ github.job }}.xml
+            /opt/mpi/mpich/bin/mpirun -np 2 ./pennylane_lightning/src/tests/mpi_runner --order lex --reporter junit --out ./tests/results/report_${{ github.job }}.xml
 
       - name: Upload test results
         uses: actions/upload-artifact@v3
@@ -162,24 +161,24 @@ jobs:
             module use /opt/modules/
             module load mpich
             module unload mpich
+            export CUQUANTUM_SDK=$(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
             export PATH=$PATH:/usr/local/cuda/bin:/opt/mpi/mpich/include:/opt/mpi/mpich/bin 
-            export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/opt/mpi/mpich/lib:$(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
+            export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/opt/mpi/mpich/lib:$CUQUANTUM_SDK
             cmake . -BBuildCov \
               -DCMAKE_PREFIX_PATH=/opt/mpi/mpich/ \
-              -DPLLGPU_ENABLE_MPI=On \
+              -DPLLGPU_ENABLE_MPI=ON \
               -DCMAKE_BUILD_TYPE=Debug \
               -DPLLGPU_BUILD_TESTS=ON \
               -DPLLGPU_ENABLE_COVERAGE=ON \
               -DCMAKE_CXX_COMPILER="$(which g++-${{ env.GCC_VERSION }})" \
-              -DLIGHTNING_RELEASE_TAG="master" \
               -DCMAKE_CUDA_COMPILER="/usr/local/cuda/bin/nvcc" \
               -DCMAKE_CUDA_ARCHITECTURES="86" \
               -DPython_EXECUTABLE:FILE="${{ steps.python_path.outputs.python }}" \
               -G Ninja
             cmake --build ./BuildCov
             cd ./BuildCov
-            /opt/mpi/mpich/bin/mpirun -np 2 ./pennylane_lightning_gpu/src/tests/mpi_runner
-            lcov --directory . -b ../pennylane_lightning_gpu/src --capture --output-file coverage.info
+            /opt/mpi/mpich/bin/mpirun -np 2 ./pennylane_lightning/src/tests/mpi_runner
+            lcov --directory . -b ../pennylane_lightning/src --capture --output-file coverage.info
             lcov --remove coverage.info '/usr/*' --output-file coverage.info
             mv coverage.info coverage-${{ github.job }}.info
 
@@ -217,12 +216,13 @@ jobs:
       - name: Checkout pennyLane-lightning-gpu
         uses: actions/checkout@v3
         with:
-          # Checkout entire git-history if workflow_call passes 'stable' as we need to find the most recent git-tag
-          fetch-depth: ${{ inputs.lightning-gpu-version == 'stable' && 0 || 1 }}
+          fetch-tags: true
 
       - name: Switch to stable build of Lightning-GPU
         if: inputs.lightning-gpu-version == 'stable'
-        run: git checkout $(git tag | sort -V | tail -1)
+        run: |
+          git fetch tags --force
+          git checkout $(git tag | sort -V | tail -1)
 
       - uses: actions/setup-python@v4
         id: setup_python
@@ -273,27 +273,28 @@ jobs:
           module use /opt/modules/
           module load mpich
           module unload mpich
+          export CUQUANTUM_SDK=$(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
           export PATH=$PATH:/usr/local/cuda/bin:/opt/mpi/mpich/include:/opt/mpi/mpich/bin 
-          export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/opt/mpi/mpich/lib:$(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
+          export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/opt/mpi/mpich/lib:$CUQUANTUM_SDK
           python -m pip install pip~=22.0
           python -m pip install ninja cmake custatevec-cu11 pytest pytest-mock flaky pytest-cov mpi4py
           # Sync with latest master branches
-          python -m pip install git+https://github.com/PennyLaneAI/pennylane-lightning.git@master --force-reinstall --no-deps
+          # python -m pip install git+https://github.com/PennyLaneAI/pennylane-lightning.git@master --force-reinstall --no-deps
 
       - name: Build and install package (MPICH backend)
         env: 
           CUQUANTUM_SDK: $(python -c "import site; print( f'{site.getsitepackages()[0]}/cuquantum/lib')")
         run: |
-          python setup.py build_ext -i --define="CMAKE_CXX_COMPILER=$(which g++-${{ env.GCC_VERSION }});CMAKE_PREFIX_PATH=/opt/mpi/mpich;PLLGPU_ENABLE_MPI=On;LIGHTNING_RELEASE_TAG=master;CMAKE_CUDA_COMPILER=/usr/local/cuda/bin/nvcc;CMAKE_CUDA_ARCHITECTURES=${{ env.CI_CUDA_ARCH }};Python_EXECUTABLE=${{ steps.python_path.outputs.python }}"
-          python -m pip install -e . --verbose
+          PL_BACKEND=lightning_gpu python setup.py build_ext -i --define="CMAKE_CXX_COMPILER=$(which g++-${{ env.GCC_VERSION }});CMAKE_PREFIX_PATH=/opt/mpi/mpich;PLLGPU_ENABLE_MPI=ON;CMAKE_CUDA_COMPILER=/usr/local/cuda/bin/nvcc;CMAKE_CUDA_ARCHITECTURES=${{ env.CI_CUDA_ARCH }};Python_EXECUTABLE=${{ steps.python_path.outputs.python }}"
+          PL_BACKEND=lightning_gpu python -m pip install -e . --verbose
 
       - name: Run PennyLane-Lightning-GPU unit tests (MPICH backend)
         run: |
           source /etc/profile.d/modules.sh
           module use /opt/modules/
           module load mpich
-          /opt/mpi/mpich/bin/mpirun -np 2 python -m pytest ./mpitests/ 
-          python -m pytest ./tests/ 
+          PL_DEVICE=lightning.gpu /opt/mpi/mpich/bin/mpirun -np 2 python -m pytest ./mpitests/ 
+          PL_DEVICE=lightning.gpu python -m pytest ./tests/ 
 
       - name: Cleanup
         if: always()