Deprecate cost estimation in azure-quantum-python SDK (#646)

* Deleted cirq estimate_cost functions

* Deleted qiskit estimate_cost functions

* Deleted target estimate_cost functions

* Deleted cost estimation unit tests

* Deleted cost estimation step from hello-world notebooks

* Deleted cost estimation references in hidden-shift notebook

azure-quantum/azure/quantum/cirq/service.py

@@ -160,36 +160,6 @@ def create_job(
             name=name
         )
 
-    def estimate_cost(
-        self,
-        program: cirq.Circuit,
-        repetitions: int,
-        target: str = None,
-        param_resolver: cirq.ParamResolverOrSimilarType = cirq.ParamResolver({}),
-        **kwargs
-    ):
-        """
-        Estimate the cost for a given circuit.
-
-        :param program: Cirq program or circuit
-        :type program: cirq.Circuit
-        :param repetitions: Number of measurement repetitions
-        :type repetitions: int
-        :param target: Target name, defaults to default_target
-        :type target: str
-        :param param_resolver: Cirq parameters, defaults to `cirq.ParamResolver({})`
-        :type param_resolver: cirq.ParamResolverOrSimilarType
-        """
-
-        # Resolve parameters
-        resolved_circuit = cirq.resolve_parameters(program, param_resolver)
-        target = self.get_target(name=target)
-        return target.estimate_cost(
-            program=resolved_circuit,
-            repetitions=repetitions,
-            **kwargs
-        )
-
     def run(
         self,
         program: cirq.Circuit,

azure-quantum/azure/quantum/cirq/targets/ionq.py

@@ -119,37 +119,6 @@ def _to_cirq_job(self, azure_job: "AzureJob") -> "CirqIonqJob":
         job_dict = self._client._create_job_dict(azure_job)
         return CirqIonqJob(client=self._client, job_dict=job_dict)
 
-    def estimate_cost(
-        self,
-        program: "cirq.Circuit",
-        repetitions: int,
-        price_1q: float = None,
-        price_2q: float = None,
-        min_price: float = None) -> float:
-        """Estimate cost for running this program
-
-        :param program: Cirq quantum program
-        :type program: cirq.Circuit
-        :param repetitions: Number of repetitions
-        :type repetitions: int
-        :param price_1q: The price of running a single-qubit gate.
-        :type price_1q: float, optional
-        :param price_2q: The price of running a double-qubit gate.
-        :type price_2q: float, optional
-        :param min_price: The minimum price for running a job.
-        :type min_price: float, optional
-        :return: Price estimate
-        :rtype: float
-        """
-        serialized_program = self._translate_cirq_circuit(program)
-        return super().estimate_cost(
-            serialized_program.body,
-            repetitions,
-            price_1q=price_1q,
-            price_2q=price_2q,
-            min_price=min_price
-        )
-
     def submit(
         self,
         program: "cirq.Circuit",

azure-quantum/azure/quantum/cirq/targets/quantinuum.py

@@ -74,26 +74,6 @@ def _measurement_dict(program) -> Dict[str, Sequence[int]]:
             meas.gate.key: [q.x for q in meas.qubits] for meas in measurements
         }
 
-    def estimate_cost(
-        self,
-        program: str,
-        repetitions: int
-    ) -> float:
-        """Estimate cost for running this program
-
-        :param program: Cirq quantum program
-        :type program: str, optional
-        :param repetitions: Number of repetitions
-        :type repetitions: int, optional
-        :return: Price estimate in HQC
-        :rtype: float
-        """
-        serialized_program = self._translate_circuit(program)
-        return super().estimate_cost(
-            circuit=serialized_program,
-            shots=repetitions
-        )
-
     def submit(
         self,
         program: "cirq.Circuit",

azure-quantum/azure/quantum/qiskit/backends/backend.py

@@ -500,25 +500,6 @@ def get_func_name(func: pyqir.Function) -> str:
 
         return str(module).encode("utf-8")
 
-    def _estimate_cost_qir(
-        self, circuits: Union[QuantumCircuit, List[QuantumCircuit]], shots, options={}
-    ):
-        """Estimate the cost for the given circuit."""
-        input_params = self._get_input_params(options, shots=shots)
-
-        if not (isinstance(circuits, list)):
-            circuits = [circuits]
-
-        skip_transpilation = input_params.pop("skipTranspile", False)
-        target_profile = self._get_target_profile(input_params)
-        module = self._generate_qir(
-            circuits, target_profile, skip_transpilation=skip_transpilation
-        )
-
-        workspace = self.provider().get_workspace()
-        target = workspace.get_targets(self.name())
-        return target.estimate_cost(module, shots=shots)
-
     def _get_target_profile(self, input_params) -> TargetProfile:
         # Default to Adaptive_RI if not specified on the backend
         # this is really just a safeguard in case the backend doesn't have a default

azure-quantum/azure/quantum/qiskit/backends/ionq.py

@@ -77,10 +77,6 @@ def _azure_config(self) -> Dict[str, str]:
         )
         return config
 
-    def estimate_cost(self, circuits, shots, options={}):
-        """Estimate the cost for the given circuit."""
-        return self._estimate_cost_qir(circuits, shots, options)
-
     def run(
         self, 
         run_input: Union[QuantumCircuit, List[QuantumCircuit]] = [],
@@ -265,17 +261,6 @@ def _translate_input(self, circuit):
     def gateset(self):
         return self.configuration().gateset
 
-    def estimate_cost(self, circuit, shots):
-        """Estimate the cost for the given circuit."""
-        ionq_circ, _, _ = qiskit_circ_to_ionq_circ(circuit, gateset=self.gateset())
-        input_data = {
-            "qubits": circuit.num_qubits,
-            "circuit": ionq_circ,
-        }
-        workspace = self.provider().get_workspace()
-        target = workspace.get_targets(self.name())
-        return target.estimate_cost(input_data, shots=shots)
-
 
 class IonQSimulatorBackend(IonQBackend):
     backend_names = ("ionq.simulator",)

azure-quantum/azure/quantum/qiskit/backends/quantinuum.py

@@ -99,10 +99,6 @@ def _azure_config(self) -> Dict[str, str]:
     def _get_n_qubits(self, name):
         return _get_n_qubits(name)
 
-    def estimate_cost(self, circuits, shots, options={}):
-        """Estimate the cost for the given circuit."""
-        return self._estimate_cost_qir(circuits, shots, options)
-
 
 class QuantinuumSyntaxCheckerQirBackend(QuantinuumQirBackendBase):
     backend_names = (
@@ -248,33 +244,6 @@ def _translate_input(self, circuit):
         """Translates the input values to the format expected by the AzureBackend."""
         return dumps(circuit)
 
-    def estimate_cost(
-        self, circuit: QuantumCircuit, shots: int = None, count: int = None
-    ):
-        """Estimate cost for running this circuit
-
-        :param circuit: Qiskit quantum circuit
-        :type circuit: QuantumCircuit
-        :param shots: Shot count
-        :type shots: int
-        :param count: Shot count (alternative to 'shots')
-        :type count: int
-        """
-        if count is not None:
-            warnings.warn(
-                "The 'count' parameter will be deprecated. Please, use 'shots' parameter instead.",
-                category=DeprecationWarning,
-            )
-            shots = count
-
-        if shots is None:
-            raise ValueError("Missing input argument 'shots'.")
-
-        input_data = dumps(circuit)
-        workspace = self.provider().get_workspace()
-        target = workspace.get_targets(self.name())
-        return target.estimate_cost(input_data, shots=shots)
-
     def _get_n_qubits(self, name):
         return _get_n_qubits(name)
 

azure-quantum/azure/quantum/target/ionq.py

@@ -126,114 +126,3 @@ def submit(
             input_params=input_params,
             **kwargs
         )
-
-    def estimate_cost(
-        self,
-        circuit: Union[Dict[str, Any], Any],
-        num_shots: int = None,
-        price_1q: float = None,
-        price_2q: float = None,
-        min_price: float = None,
-        shots: int = None
-    ) -> CostEstimate:
-        """Estimate the cost of submitting a circuit to IonQ targets.
-        Optionally, you can provide the number of gate and measurement operations
-        manually.
-        The actual price charged by the provider may differ from this calculation.
-        
-        Specify pricing details for your area to get most accurate results.
-        By default, this function charges depending on the target:
-            ionq.qpu.aria-1:
-                price_1q = 0.00022 USD for a single-qubit gate.
-                price_2q = 0.00098 USD for a two-qubit gate.
-                min_price = 1 USD, total minimum price per circuit.
-
-        For the most current pricing details, see
-        https://docs.microsoft.com/azure/quantum/provider-ionq#pricing
-        or find your workspace and view pricing options in the "Provider" tab
-        of your workspace: https://aka.ms/aq/myworkspaces
-
-        :param circuit: Quantum circuit in IonQ JSON format (for examples,
-            see: https://docs.ionq.com/#section/Sample-JSON-Circuits)
-        :type circuit: Dict[str, Any]
-        :param num_shots: Number of shots, defaults to None
-        :type num_shots: int
-        :param price_1q: The price of running a single-qubit gate
-            for one shot.
-        :type price_1q: float
-        :param price_2q: The price of running a double-qubit gate
-            for one shot.
-        :type price_2q: float
-        :param min_price: The minimum price for running a job.
-        :type min_price: float
-        :param shots: Number of shots, defaults to None
-        :type shots: int
-        """
-
-        if num_shots is None and shots is None:
-             raise ValueError("The 'shots' parameter has to be specified")
-
-        if num_shots is not None:
-            warn(
-                "The 'num_shots' parameter will be deprecated. Please, use 'shots' parameter instead.",
-                category=DeprecationWarning,
-            )
-            shots = num_shots
-
-        # Get the costs for the gates depending on the provider if not specified
-        if price_1q is None:
-            price_1q = COST_1QUBIT_GATE_MAP[self.name]
-
-        if price_2q is None:
-            price_2q = COST_2QUBIT_GATE_MAP[self.name]
-
-        if min_price is None:
-            min_price = MIN_PRICE_MAP[self.name]
-
-        if (isinstance(circuit, Dict)):
-            def is_1q_gate(gate: Dict[str, Any]):
-                return "controls" not in gate and "control" not in gate
-
-            def is_multi_q_gate(gate):
-                return "controls" in gate or "control" in gate
-
-            def num_2q_gates(gate):
-                controls = gate.get("controls")
-                if controls is None or len(controls) == 1:
-                    # Only one control qubit
-                    return 1
-                # Multiple control qubits
-                return 6 * (len(controls) - 2)
-
-            gates = circuit.get("circuit", [])
-            N_1q = sum(map(is_1q_gate, gates))
-            N_2q = sum(map(num_2q_gates, filter(is_multi_q_gate, gates)))
-
-        else:
-            N_1q, N_2q, _ = Target._calculate_qir_module_gate_stats(circuit)
-
-        price = (price_1q * N_1q + price_2q * N_2q) * shots
-        price = max(price, min_price)
-
-        return CostEstimate(
-            events = [
-                UsageEvent(
-                    dimension_id="gs1q",
-                    dimension_name="1Q Gate Shot",
-                    measure_unit="1q gate shot",
-                    amount_billed=0.0,
-                    amount_consumed=N_1q * shots,
-                    unit_price=0.0
-                ),
-                UsageEvent(
-                    dimension_id="gs2q",
-                    dimension_name="2Q Gate Shot",
-                    measure_unit="2q gate shot",
-                    amount_billed=0.0,
-                    amount_consumed=N_2q * shots,
-                    unit_price=0.0
-                )
-            ],
-            currency_code="USD",
-            estimated_total=price
-        )