Merge branch 'master' of https://github.com/PennyLaneAI/pennylane-lig…

…htning

.github/CHANGELOG.md

@@ -52,6 +52,12 @@
 
 ### Improvements
 
+* Refactor `cuda_utils` to remove its dependency on `custatevec.h`.
+  [(#681)](https://github.com/PennyLaneAI/pennylane-lightning/pull/681)
+
+* Add `test_templates.py` module where Grover and QSVT are tested.
+  [(#684)](https://github.com/PennyLaneAI/pennylane-lightning/pull/684)
+
 * Create `cuda_utils` for common usage of CUDA related backends.
   [(#676)](https://github.com/PennyLaneAI/pennylane-lightning/pull/676)
 
@@ -74,6 +80,12 @@
 
 ### Bug fixes
 
+* `LightningQubit` correctly decomposes state prep operations when used in the middle of a circuit.
+  [(#687)](https://github.com/PennyLaneAI/pennylane/pull/687)
+
+* `LightningQubit` correctly decomposes `qml.QFT` and `qml.GroverOperator` if `len(wires)` is greater than 9 and 12 respectively.
+  [(#687)](https://github.com/PennyLaneAI/pennylane/pull/687)
+
 * Specify `isort` `--py` (Python version) and `-l` (max line length) to stabilize `isort` across Python versions and environments.
   [(#647)](https://github.com/PennyLaneAI/pennylane-lightning/pull/647)
 
@@ -83,6 +95,15 @@
 * `lightning.qubit` correctly decomposed state preparation operations with adjoint differentiation.
   [(#661)](https://github.com/PennyLaneAI/pennylane-lightning/pull/661)
 
+* Fix the failed observable serialization unit tests.
+  [(#683)](https://github.com/PennyLaneAI/pennylane-lightning/pull/683)
+
+* Update the `LightningQubit` new device API to work with Catalyst.
+  [(#665)](https://github.com/PennyLaneAI/pennylane-lightning/pull/665)
+
+* Update the version of `codecov-action` to v4 and fix the CodeCov issue with the PL-Lightning check-compatibility actions.
+  [(#682)](https://github.com/PennyLaneAI/pennylane-lightning/pull/682)
+
 ### Contributors
 
 This release contains contributions from (in alphabetical order):

.github/workflows/compat-check-latest-latest.yml

@@ -12,27 +12,32 @@ jobs:
     with:
       lightning-version: latest
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_lkokkos_gpu:
     name: Lightning Compatibility test (tests_lkokkos_gpu) - latest/latest
     uses: ./.github/workflows/tests_gpu_kokkos.yml
     with:
       lightning-version: latest
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu:
     name: Lightning Compatibility test (tests_lgpu_gpu) - latest/latest
     uses: ./.github/workflows/tests_gpu_cuda.yml
     with:
       lightning-version: latest
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu_mpi:
     name: Lightning Compatibility test (tests_lgpu_gpu_mpi) - latest/latest
     uses: ./.github/workflows/tests_linux_x86_mpi_gpu.yml
     with:
       lightning-version: latest
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_without_binary:
     name: Lightning Compatibility test (tests_without_binary) - latest/latest
     uses: ./.github/workflows/tests_without_binary.yml
     with:
       lightning-version: latest
       pennylane-version: latest
+    secrets: inherit # pass all secrets

.github/workflows/compat-check-latest-stable.yml

@@ -12,27 +12,32 @@ jobs:
     with:
       lightning-version: latest
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_lkokkos_gpu:
     name: Lightning Compatibility test (tests_lkokkos_gpu) - latest/stable
     uses: ./.github/workflows/tests_gpu_kokkos.yml
     with:
       lightning-version: latest
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu:
     name: Lightning Compatibility test (tests_lgpu_gpu) - latest/stable
     uses: ./.github/workflows/tests_gpu_cuda.yml
     with:
       lightning-version: latest
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu_mpi:
     name: Lightning Compatibility test (tests_lgpu_gpu_mpi) - latest/stable
     uses: ./.github/workflows/tests_linux_x86_mpi_gpu.yml
     with:
       lightning-version: latest
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_without_binary:
     name: Lightning Compatibility test (tests_without_binary) - latest/stable
     uses: ./.github/workflows/tests_without_binary.yml
     with:
       lightning-version: latest
       pennylane-version: stable
+    secrets: inherit # pass all secrets

.github/workflows/compat-check-release-release.yml

@@ -12,27 +12,32 @@ jobs:
     with:
       lightning-version: release
       pennylane-version: release
+    secrets: inherit # pass all secrets
   tests_lkokkos_gpu:
     name: Lightning Compatibility test (tests_lkokkos_gpu) - release/release
     uses: ./.github/workflows/tests_gpu_kokkos.yml
     with:
       lightning-version: release
       pennylane-version: release
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu:
     name: Lightning Compatibility test (tests_lgpu_gpu) - release/release
     uses: ./.github/workflows/tests_gpu_cuda.yml
     with:
       lightning-version: release
       pennylane-version: release
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu_mpi:
     name: Lightning Compatibility test (tests_lgpu_gpu_mpi) - release/release
     uses: ./.github/workflows/tests_linux_x86_mpi_gpu.yml
     with:
       lightning-version: release
       pennylane-version: release
+    secrets: inherit # pass all secrets
   tests_without_binary:
     name: Lightning Compatibility test (tests_without_binary) - release/release
     uses: ./.github/workflows/tests_without_binary.yml
     with:
       lightning-version: release
       pennylane-version: release
+    secrets: inherit # pass all secrets

.github/workflows/compat-check-stable-latest.yml

@@ -12,27 +12,32 @@ jobs:
     with:
       lightning-version: stable
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_lkokkos_gpu:
     name: Lightning Compatibility test (tests_lkokkos_gpu) - stable/latest
     uses: ./.github/workflows/tests_gpu_kokkos.yml
     with:
       lightning-version: stable
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu:
     name: Lightning Compatibility test (tests_lgpu_gpu) - stable/latest
     uses: ./.github/workflows/tests_gpu_cuda.yml
     with:
       lightning-version: stable
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu_mpi:
     name: Lightning Compatibility test (tests_lgpu_gpu_mpi) - stable/latest
     uses: ./.github/workflows/tests_linux_x86_mpi_gpu.yml
     with:
       lightning-version: stable
       pennylane-version: latest
+    secrets: inherit # pass all secrets
   tests_without_binary:
     name: Lightning Compatibility test (tests_without_binary) - stable/latest
     uses: ./.github/workflows/tests_without_binary.yml
     with:
       lightning-version: stable
       pennylane-version: latest
+    secrets: inherit # pass all secrets

.github/workflows/compat-check-stable-stable.yml

@@ -12,27 +12,32 @@ jobs:
     with:
       lightning-version: stable
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_lkokkos_gpu:
     name: Lightning Compatibility test (tests_lkokkos_gpu) - stable/stable
     uses: ./.github/workflows/tests_gpu_kokkos.yml
     with:
       lightning-version: stable
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu:
     name: Lightning Compatibility test (tests_lgpu_gpu) - stable/stable
     uses: ./.github/workflows/tests_gpu_cuda.yml
     with:
       lightning-version: stable
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_lgpu_gpu_mpi:
     name: Lightning Compatibility test (tests_lgpu_gpu_mpi) - stable/stable
     uses: ./.github/workflows/tests_linux_x86_mpi_gpu.yml
     with:
       lightning-version: stable
       pennylane-version: stable
+    secrets: inherit # pass all secrets
   tests_without_binary:
     name: Lightning Compatibility test (tests_without_binary) - stable/stable
     uses: ./.github/workflows/tests_without_binary.yml
     with:
       lightning-version: stable
       pennylane-version: stable
+    secrets: inherit # pass all secrets

.github/workflows/tests_gpu_cuda.yml

@@ -340,9 +340,10 @@ jobs:
           name: ubuntu-codecov-results-python
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
+          verbose: true
           token: ${{ secrets.CODECOV_TOKEN }}
 
   upload-to-codecov-linux-cpp:
@@ -359,9 +360,10 @@ jobs:
           name: ubuntu-codecov-results-cpp
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
+          verbose: true
           token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: Cleanup

.github/workflows/tests_linux.yml

@@ -560,10 +560,13 @@ jobs:
           cd main/
           DEVICENAME=`echo ${{ matrix.pl_backend }} | sed "s/_/./g"`
           PL_DEVICE=${DEVICENAME} python -m pytest tests/ -k "not test_native_mcm" $COVERAGE_FLAGS
-          OMP_NUM_THREADS=1 PL_DEVICE=${DEVICENAME} python -m pytest -n auto tests/ -k "test_native_mcm" $COVERAGE_FLAGS --cov-append
           pl-device-test --device ${DEVICENAME} --skip-ops --shots=20000 $COVERAGE_FLAGS --cov-append
           pl-device-test --device ${DEVICENAME} --shots=None --skip-ops $COVERAGE_FLAGS --cov-append
           mv .coverage .coverage-${{ github.job }}-${{ matrix.pl_backend }}
+          # TODO: Remove this if-cond with release v0.36.0
+          if [ -f tests/test_native_mcm.py ]; then
+              OMP_NUM_THREADS=1 PL_DEVICE=${DEVICENAME} python -m pytest -n auto tests/ -k "test_native_mcm" $COVERAGE_FLAGS --cov-append
+          fi
 
       - name: Install all backend devices
         if: ${{ matrix.pl_backend == 'all' }}
@@ -622,9 +625,10 @@ jobs:
           python -m coverage xml -i -o coverage-${{ github.job }}.xml
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
+          verbose: true
           token: ${{ secrets.CODECOV_TOKEN }}
 
   upload-to-codecov-linux-cpp:
@@ -641,9 +645,10 @@ jobs:
           name: ubuntu-codecov-results-cpp
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
+          verbose: true
           token: ${{ secrets.CODECOV_TOKEN }}
 
   cpptestsWithMultipleBackends:

.github/workflows/tests_linux_x86_mpi_gpu.yml

@@ -297,7 +297,7 @@ jobs:
           name: ubuntu-codecov-results-cpp
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
           verbose: true
@@ -324,7 +324,7 @@ jobs:
           name: ubuntu-codecov-results-python
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
           verbose: true

.github/workflows/tests_windows.yml

@@ -262,7 +262,8 @@ jobs:
           name: windows-coverage-report
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
-          token: ${{ secrets.CODECOV_TOKEN }}
+          verbose: true
+          token: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/tests_without_binary.yml

@@ -109,8 +109,9 @@ jobs:
           PL_DEVICE=${DEVICENAME} python -m pytest tests/ $COVERAGE_FLAGS
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./main/coverage.xml
           fail_ci_if_error: true
-          token: ${{ secrets.CODECOV_TOKEN }}
+          verbose: true
+          token: ${{ secrets.CODECOV_TOKEN }}

pennylane_lightning/core/_serialize.py

@@ -255,6 +255,9 @@ def map_wire(wire: int):
 
     def _pauli_sentence(self, observable, wires_map: dict = None):
         """Serialize a :class:`pennylane.pauli.PauliSentence` into a Hamiltonian."""
+        # Trivial Pauli sentences' items is empty, cannot unpack
+        if not observable:
+            return self.hamiltonian_obs(np.array([0.0]).astype(self.rtype), [self._ob(Identity(0))])
         pwords, coeffs = zip(*observable.items())
         terms = [self._pauli_word(pw, wires_map) for pw in pwords]
         coeffs = np.array(coeffs).astype(self.rtype)

pennylane_lightning/core/_version.py

@@ -16,4 +16,4 @@
    Version number (major.minor.patch[-label])
 """
 
-__version__ = "0.36.0-dev28"
+__version__ = "0.36.0-dev33"

pennylane_lightning/core/src/simulators/lightning_gpu/MPIWorker.hpp

@@ -21,6 +21,7 @@
 #include "MPIManager.hpp"
 #include "MPI_helpers.hpp"
 #include "cuError.hpp"
+#include "cuStateVecError.hpp"
 #include <cuda.h>
 #include <cuda_runtime.h>
 #include <custatevec.h>

pennylane_lightning/core/src/simulators/lightning_gpu/StateVectorCudaBase.hpp

@@ -27,6 +27,7 @@
 #include "DevTag.hpp"
 #include "Error.hpp"
 #include "StateVectorBase.hpp"
+#include "cuStateVecError.hpp"
 #include "cuda_helpers.hpp"
 
 /// @cond DEV

pennylane_lightning/core/src/simulators/lightning_gpu/StateVectorCudaMPI.hpp

@@ -36,6 +36,8 @@
 #include "StateVectorCudaBase.hpp"
 #include "cuGateCache.hpp"
 #include "cuGates_host.hpp"
+#include "cuStateVecError.hpp"
+#include "cuStateVec_helpers.hpp"
 #include "cuda_helpers.hpp"
 
 #include "CPUMemoryModel.hpp"

pennylane_lightning/core/src/simulators/lightning_gpu/StateVectorCudaManaged.hpp

@@ -37,6 +37,8 @@
 #include "CPUMemoryModel.hpp"
 
 #include "cuError.hpp"
+#include "cuStateVecError.hpp"
+#include "cuStateVec_helpers.hpp"
 
 #include "LinearAlg.hpp"
 

pennylane_lightning/core/src/simulators/lightning_gpu/measurements/MeasurementsGPU.hpp

@@ -34,6 +34,8 @@
 #include "Observables.hpp"
 #include "ObservablesGPU.hpp"
 #include "StateVectorCudaManaged.hpp"
+#include "cuStateVecError.hpp"
+#include "cuStateVec_helpers.hpp"
 #include "cuda_helpers.hpp"
 
 /// @cond DEV

pennylane_lightning/core/src/simulators/lightning_gpu/measurements/MeasurementsGPUMPI.hpp

@@ -39,6 +39,7 @@
 #include "ObservablesGPUMPI.hpp"
 #include "StateVectorCudaMPI.hpp"
 #include "StateVectorCudaManaged.hpp"
+#include "cuStateVecError.hpp"
 #include "cuda_helpers.hpp"
 
 /// @cond DEV