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Adds devices for CUDA-Q and Qsim backends.
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‎pennylane_scaleway/cudaq_device.py‎

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# Copyright 2026 Scaleway
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from pennylane.devices.modifiers import simulator_tracking, single_tape_support
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from qiskit_scaleway.backends import CudaqBackend
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from pennylane_scaleway.scw_device import ScalewayDevice
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@simulator_tracking # update device.tracker with some relevant information
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@single_tape_support # add support for device.execute(tape) in addition to device.execute((tape,))
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class CudaqDevice(ScalewayDevice):
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"""
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Scaleway's device to run Pennylane circuits on CUDA-Q backends.
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"""
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name = "scaleway.cudaq"
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backend_type = CudaqBackend
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# operations = set(QISKIT_OPERATION_MAP.keys())
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# observables = {
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# "PauliX",
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# "PauliY",
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# "PauliZ",
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# "Identity",
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# "Hadamard",
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# "Hermitian",
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# "Projector",
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# "Prod",
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# "Sum",
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# "LinearCombination",
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# "SProd",
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# }
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def __init__(self, wires, shots=None, seed=None, **kwargs):
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"""
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Params:
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wires (int, Iterable): Number of subsystems represented by the device,
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or iterable that contains a unique label for each subsystem.
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shots (int, ~pennylane.measurements.Shots): DEPRECATED, use the qml.set_shot() decorator for each QNode instead. Number of circuit evaluations to run.
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seed (int): Random seed used to initialize the pseudo-random number generator.
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**kwargs:
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- project_id (str): The Scaleway Quantum Project ID.
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- secret_key (str): The API token for authentication with Scaleway.
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- backend (str): The specific quantum backend to run on Scaleway.
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- url (str): The Scaleway API URL (optional).
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- session_name (str): Name of the session (optional).
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- deduplication_id (str): Unique deduplication identifier for session (optional).
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- max_duration (str): Maximum uptime session duration (e.g., "1h", "30m") (optional).
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- max_idle_duration (str): Maximum idle session duration (e.g., "1h", "5m") (optional).
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- Any options supported by qiskit's BackendSamplerV2 or BackendEstimatorV2 primitives (optional).
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Example:
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```python
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import pennylane as qml
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with qml.device("scaleway.cudaq",
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wires=2,
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project_id=<your-project-id>,
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secret_key=<your-secret-key>,
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backend="EMU-CUDAQ-8H100SXM"
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) as dev:
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@qml.set_shots(512)
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@qml.qnode(dev)
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def circuit():
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qml.Hadamard(wires=0)
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qml.CNOT(wires=[0, 1])
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return qml.counts()
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print(circuit())
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```
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"""
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super().__init__(wires=wires, kwargs=kwargs, shots=shots)

‎pennylane_scaleway/qsim_device.py‎

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# Copyright 2026 Scaleway
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from pennylane.devices.modifiers import simulator_tracking, single_tape_support
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from qiskit_scaleway.backends import QsimBackend
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from pennylane_scaleway.scw_device import ScalewayDevice
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@simulator_tracking # update device.tracker with some relevant information
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@single_tape_support # add support for device.execute(tape) in addition to device.execute((tape,))
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class QsimDevice(ScalewayDevice):
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"""
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Scaleway's device to run Pennylane circuits on Qsim backends.
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"""
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name = "scaleway.qsim"
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backend_type = QsimBackend
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# operations = set(QISKIT_OPERATION_MAP.keys())
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# observables = {
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# "PauliX",
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# "PauliY",
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# "PauliZ",
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# "Identity",
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# "Hadamard",
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# "Hermitian",
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# "Projector",
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# "Prod",
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# "Sum",
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# "LinearCombination",
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# "SProd",
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# }
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def __init__(self, wires, shots=None, seed=None, **kwargs):
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"""
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Params:
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wires (int, Iterable): Number of subsystems represented by the device,
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or iterable that contains a unique label for each subsystem.
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shots (int, ~pennylane.measurements.Shots): DEPRECATED, use the qml.set_shot() decorator for each QNode instead. Number of circuit evaluations to run.
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seed (int): Random seed used to initialize the pseudo-random number generator.
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**kwargs:
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- project_id (str): The Scaleway Quantum Project ID.
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- secret_key (str): The API token for authentication with Scaleway.
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- backend (str): The specific quantum backend to run on Scaleway.
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- url (str): The Scaleway API URL (optional).
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- session_name (str): Name of the session (optional).
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- deduplication_id (str): Unique deduplication identifier for session (optional).
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- max_duration (str): Maximum uptime session duration (e.g., "1h", "30m") (optional).
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- max_idle_duration (str): Maximum idle session duration (e.g., "1h", "5m") (optional).
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- Any options supported by qiskit's BackendSamplerV2 or BackendEstimatorV2 primitives (optional).
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Example:
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```python
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import pennylane as qml
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with qml.device("scaleway.qsim",
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wires=2,
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project_id=<your-project-id>,
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secret_key=<your-secret-key>,
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backend="EMU-QSIM-64C-512M"
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) as dev:
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@qml.set_shots(512)
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@qml.qnode(dev)
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def circuit():
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qml.Hadamard(wires=0)
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qml.CNOT(wires=[0, 1])
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return qml.counts()
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print(circuit())
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```
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"""
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super().__init__(wires=wires, kwargs=kwargs, shots=shots)

‎setup.py‎

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"scaleway.aer = pennylane_scaleway:AerDevice",
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"scaleway.aqt = pennylane_scaleway:AqtDevice",
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"scaleway.iqm = pennylane_scaleway:IqmDevice",
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"scaleway.qsim = pennylane_scaleway:QsimDevice",
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"scaleway.cudaq = pennylane_scaleway:CudaqDevice",
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]
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setup(
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name="pennylane-scaleway",
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version="0.3.1",
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version="0.3.2",
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project_urls={
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"Documentation": "https://www.scaleway.com/en/quantum-as-a-service/",
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"Source": "https://github.com/scaleway/pennylane-scaleway",

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