Пример #1
0
def assemble_circuits(circuits, run_config, qobj_id, qobj_header):
    """Assembles a list of circuits into a qobj that can be run on the backend.

    Args:
        circuits (list[QuantumCircuit]): circuit(s) to assemble
        qobj_id (int): identifier for the generated qobj
        qobj_header (QobjHeader): header to pass to the results
        run_config (RunConfig): configuration of the runtime environment

    Returns:
        QasmQobj: the qobj to be run on the backends
    """
    qobj_config = QasmQobjConfig()
    if run_config:
        qobj_config = QasmQobjConfig(**run_config.to_dict())
    qubit_sizes = []
    memory_slot_sizes = []
    for circ in circuits:
        num_qubits = 0
        memory_slots = 0
        for qreg in circ.qregs:
            num_qubits += qreg.size
        for creg in circ.cregs:
            memory_slots += creg.size
        qubit_sizes.append(num_qubits)
        memory_slot_sizes.append(memory_slots)
    qobj_config.memory_slots = max(memory_slot_sizes)
    qobj_config.n_qubits = max(qubit_sizes)

    experiments = parallel_map(_assemble_circuit, circuits)

    return QasmQobj(qobj_id=qobj_id,
                    config=qobj_config,
                    experiments=experiments,
                    header=qobj_header)
Пример #2
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def assemble_circuits(circuits: List[QuantumCircuit], run_config: RunConfig,
                      qobj_id: int, qobj_header: QobjHeader) -> QasmQobj:
    """Assembles a list of circuits into a qobj that can be run on the backend.

    Args:
        circuits: circuit(s) to assemble
        run_config: configuration of the runtime environment
        qobj_id: identifier for the generated qobj
        qobj_header: header to pass to the results

    Returns:
        The qobj to be run on the backends
    """
    qobj_config = QasmQobjConfig()
    if run_config:
        qobj_config = QasmQobjConfig(**run_config.to_dict())
    qubit_sizes = []
    memory_slot_sizes = []
    for circ in circuits:
        num_qubits = 0
        memory_slots = 0
        for qreg in circ.qregs:
            num_qubits += qreg.size
        for creg in circ.cregs:
            memory_slots += creg.size
        qubit_sizes.append(num_qubits)
        memory_slot_sizes.append(memory_slots)
    qobj_config.memory_slots = max(memory_slot_sizes)
    qobj_config.n_qubits = max(qubit_sizes)

    experiments_and_pulse_libs = parallel_map(_assemble_circuit, circuits,
                                              [run_config])
    experiments = []
    pulse_library = {}
    for exp, lib in experiments_and_pulse_libs:
        experiments.append(exp)
        if lib:
            pulse_library.update(lib)
    if pulse_library:
        qobj_config.pulse_library = [
            PulseLibraryItem(name=name, samples=samples)
            for name, samples in pulse_library.items()
        ]
    experiments, calibrations = _extract_common_calibrations(experiments)
    if calibrations and calibrations.gates:
        qobj_config.calibrations = calibrations

    return QasmQobj(qobj_id=qobj_id,
                    config=qobj_config,
                    experiments=experiments,
                    header=qobj_header)
Пример #3
0
def assemble_circuits(circuits,
                      qobj_id=None,
                      qobj_header=None,
                      run_config=None):
    """Assembles a list of circuits into a qobj which can be run on the backend.

    Args:
        circuits (list[QuantumCircuits]): circuit(s) to assemble
        qobj_id (int): identifier for the generated qobj
        qobj_header (QobjHeader): header to pass to the results
        run_config (RunConfig): configuration of the runtime environment

    Returns:
        QasmQobj: the Qobj to be run on the backends
    """
    qobj_config = QasmQobjConfig()
    if run_config:
        qobj_config = QasmQobjConfig(**run_config.to_dict())

    # Pack everything into the Qobj
    experiments = []
    max_n_qubits = 0
    max_memory_slots = 0
    for circuit in circuits:
        # header stuff
        n_qubits = 0
        memory_slots = 0
        qubit_labels = []
        clbit_labels = []

        qreg_sizes = []
        creg_sizes = []
        for qreg in circuit.qregs:
            qreg_sizes.append([qreg.name, qreg.size])
            for j in range(qreg.size):
                qubit_labels.append([qreg.name, j])
            n_qubits += qreg.size
        for creg in circuit.cregs:
            creg_sizes.append([creg.name, creg.size])
            for j in range(creg.size):
                clbit_labels.append([creg.name, j])
            memory_slots += creg.size

        # TODO: why do we need creq_sizes and qreg_sizes in header
        # TODO: we need to rethink memory_slots as they are tied to classical bit
        experimentheader = QobjExperimentHeader(qubit_labels=qubit_labels,
                                                n_qubits=n_qubits,
                                                qreg_sizes=qreg_sizes,
                                                clbit_labels=clbit_labels,
                                                memory_slots=memory_slots,
                                                creg_sizes=creg_sizes,
                                                name=circuit.name)
        # TODO: why do we need n_qubits and memory_slots in both the header and the config
        experimentconfig = QasmQobjExperimentConfig(n_qubits=n_qubits,
                                                    memory_slots=memory_slots)

        # Convert conditionals from QASM-style (creg ?= int) to qobj-style
        # (register_bit ?= 1), by assuming device has unlimited register slots
        # (supported only for simulators). Map all measures to a register matching
        # their clbit_index, create a new register slot for every conditional gate
        # and add a bfunc to map the creg=val mask onto the gating register bit.

        is_conditional_experiment = any(op.control
                                        for (op, qargs, cargs) in circuit.data)
        max_conditional_idx = 0

        instructions = []
        for op_context in circuit.data:
            instruction = op_context[0].assemble()

            # Add register attributes to the instruction
            qargs = op_context[1]
            cargs = op_context[2]
            if qargs:
                qubit_indices = [
                    qubit_labels.index([qubit[0].name, qubit[1]])
                    for qubit in qargs
                ]
                instruction.qubits = qubit_indices
            if cargs:
                clbit_indices = [
                    clbit_labels.index([clbit[0].name, clbit[1]])
                    for clbit in cargs
                ]
                instruction.memory = clbit_indices
                # If the experiment has conditional instructions, assume every
                # measurement result may be needed for a conditional gate.
                if instruction.name == "measure" and is_conditional_experiment:
                    instruction.register = clbit_indices

            # To convert to a qobj-style conditional, insert a bfunc prior
            # to the conditional instruction to map the creg ?= val condition
            # onto a gating register bit.
            if hasattr(instruction, '_control'):
                ctrl_reg, ctrl_val = instruction._control
                mask = 0
                val = 0
                for clbit in clbit_labels:
                    if clbit[0] == ctrl_reg.name:
                        mask |= (1 << clbit_labels.index(clbit))
                        val |= (((ctrl_val >> clbit[1]) & 1) <<
                                clbit_labels.index(clbit))

                conditional_reg_idx = memory_slots + max_conditional_idx
                conversion_bfunc = QasmQobjInstruction(
                    name='bfunc',
                    mask="0x%X" % mask,
                    relation='==',
                    val="0x%X" % val,
                    register=conditional_reg_idx)
                instructions.append(conversion_bfunc)
                instruction.conditional = conditional_reg_idx
                max_conditional_idx += 1
                # Delete control attribute now that we have replaced it with
                # the conditional and bfuc
                del instruction._control

            instructions.append(instruction)

        experiments.append(
            QasmQobjExperiment(instructions=instructions,
                               header=experimentheader,
                               config=experimentconfig))
        if n_qubits > max_n_qubits:
            max_n_qubits = n_qubits
        if memory_slots > max_memory_slots:
            max_memory_slots = memory_slots

    qobj_config.memory_slots = max_memory_slots
    qobj_config.n_qubits = max_n_qubits

    return QasmQobj(qobj_id=qobj_id,
                    config=qobj_config,
                    experiments=experiments,
                    header=qobj_header)
Пример #4
0
def assemble_circuits(circuits: List[QuantumCircuit], run_config: RunConfig,
                      qobj_id: int, qobj_header: QobjHeader) -> QasmQobj:
    """Assembles a list of circuits into a qobj that can be run on the backend.

    Args:
        circuits: circuit(s) to assemble
        run_config: configuration of the runtime environment
        qobj_id: identifier for the generated qobj
        qobj_header: header to pass to the results

    Returns:
        The qobj to be run on the backends
    """
    # assemble the circuit experiments
    experiments_and_pulse_libs = parallel_map(_assemble_circuit, circuits,
                                              [run_config])
    experiments = []
    pulse_library = {}
    for exp, lib in experiments_and_pulse_libs:
        experiments.append(exp)
        if lib:
            pulse_library.update(lib)

    # extract common calibrations
    experiments, calibrations = _extract_common_calibrations(experiments)

    # configure LO freqs per circuit
    lo_converter = converters.LoConfigConverter(QasmQobjExperimentConfig,
                                                **run_config.to_dict())
    experiments = _configure_experiment_los(experiments, lo_converter,
                                            run_config)

    qobj_config = QasmQobjConfig()
    if run_config:
        qobj_config_dict = run_config.to_dict()

        # remove LO ranges, not needed in qobj
        qobj_config_dict.pop("qubit_lo_range", None)
        qobj_config_dict.pop("meas_lo_range", None)

        # convert LO frequencies to GHz, if they exist
        if "qubit_lo_freq" in qobj_config_dict:
            qobj_config_dict["qubit_lo_freq"] = [
                freq / 1e9 for freq in qobj_config_dict["qubit_lo_freq"]
            ]
        if "meas_lo_freq" in qobj_config_dict:
            qobj_config_dict["meas_lo_freq"] = [
                freq / 1e9 for freq in qobj_config_dict["meas_lo_freq"]
            ]

        # override default los if single ``schedule_los`` entry set
        schedule_los = qobj_config_dict.pop("schedule_los", [])
        if len(schedule_los) == 1:
            lo_dict = schedule_los[0]
            q_los = lo_converter.get_qubit_los(lo_dict)
            # Hz -> GHz
            if q_los:
                qobj_config_dict["qubit_lo_freq"] = [
                    freq / 1e9 for freq in q_los
                ]
            m_los = lo_converter.get_meas_los(lo_dict)
            if m_los:
                qobj_config_dict["meas_lo_freq"] = [
                    freq / 1e9 for freq in m_los
                ]

        qobj_config = QasmQobjConfig(**qobj_config_dict)

    qubit_sizes = []
    memory_slot_sizes = []
    for circ in circuits:
        num_qubits = 0
        memory_slots = 0
        for qreg in circ.qregs:
            num_qubits += qreg.size
        for creg in circ.cregs:
            memory_slots += creg.size
        qubit_sizes.append(num_qubits)
        memory_slot_sizes.append(memory_slots)
    qobj_config.memory_slots = max(memory_slot_sizes)
    qobj_config.n_qubits = max(qubit_sizes)

    if pulse_library:
        qobj_config.pulse_library = [
            PulseLibraryItem(name=name, samples=samples)
            for name, samples in pulse_library.items()
        ]

    if calibrations and calibrations.gates:
        qobj_config.calibrations = calibrations

    return QasmQobj(qobj_id=qobj_id,
                    config=qobj_config,
                    experiments=experiments,
                    header=qobj_header)
Пример #5
0
def assemble_circuits(circuits,
                      qobj_id=None,
                      qobj_header=None,
                      run_config=None):
    """Assembles a list of circuits into a qobj which can be run on the backend.

    Args:
        circuits (list[QuantumCircuits]): circuit(s) to assemble
        qobj_id (int): identifier for the generated qobj
        qobj_header (QobjHeader): header to pass to the results
        run_config (RunConfig): configuration of the runtime environment

    Returns:
        QasmQobj: the Qobj to be run on the backends
    """
    qobj_config = QasmQobjConfig()
    if run_config:
        qobj_config = QasmQobjConfig(**run_config.to_dict())

    # Pack everything into the Qobj
    experiments = []
    max_n_qubits = 0
    max_memory_slots = 0
    for circuit in circuits:
        # header stuff
        n_qubits = 0
        memory_slots = 0
        qubit_labels = []
        clbit_labels = []

        qreg_sizes = []
        creg_sizes = []
        for qreg in circuit.qregs:
            qreg_sizes.append([qreg.name, qreg.size])
            for j in range(qreg.size):
                qubit_labels.append([qreg.name, j])
            n_qubits += qreg.size
        for creg in circuit.cregs:
            creg_sizes.append([creg.name, creg.size])
            for j in range(creg.size):
                clbit_labels.append([creg.name, j])
            memory_slots += creg.size

        # TODO: why do we need creq_sizes and qreg_sizes in header
        # TODO: we need to rethink memory_slots as they are tied to classical bit
        experimentheader = QobjExperimentHeader(qubit_labels=qubit_labels,
                                                n_qubits=n_qubits,
                                                qreg_sizes=qreg_sizes,
                                                clbit_labels=clbit_labels,
                                                memory_slots=memory_slots,
                                                creg_sizes=creg_sizes,
                                                name=circuit.name)
        # TODO: why do we need n_qubits and memory_slots in both the header and the config
        experimentconfig = QasmQobjExperimentConfig(n_qubits=n_qubits,
                                                    memory_slots=memory_slots)

        # Convert conditionals from QASM-style (creg ?= int) to qobj-style
        # (register_bit ?= 1), by assuming device has unlimited register slots
        # (supported only for simulators). Map all measures to a register matching
        # their clbit_index, create a new register slot for every conditional gate
        # and add a bfunc to map the creg=val mask onto the gating register bit.

        is_conditional_experiment = any(op.control
                                        for (op, qargs, cargs) in circuit.data)
        max_conditional_idx = 0

        instructions = []
        for op_context in circuit.data:
            op = op_context[0]
            qargs = op_context[1]
            cargs = op_context[2]
            current_instruction = QasmQobjInstruction(name=op.name)
            if qargs:
                qubit_indices = [
                    qubit_labels.index([qubit[0].name, qubit[1]])
                    for qubit in qargs
                ]
                current_instruction.qubits = qubit_indices
            if cargs:
                clbit_indices = [
                    clbit_labels.index([clbit[0].name, clbit[1]])
                    for clbit in cargs
                ]
                current_instruction.memory = clbit_indices

                # If the experiment has conditional instructions, assume every
                # measurement result may be needed for a conditional gate.
                if op.name == "measure" and is_conditional_experiment:
                    current_instruction.register = clbit_indices

            if op.params:
                # Evalute Sympy parameters
                params = [
                    x.evalf() if hasattr(x, 'evalf') else x for x in op.params
                ]
                params = [
                    sympy.matrix2numpy(x, dtype=complex) if isinstance(
                        x, sympy.Matrix) else x for x in params
                ]

                current_instruction.params = params
            # TODO: I really dont like this for snapshot. I also think we should change
            # type to snap_type
            if op.name == 'snapshot':
                current_instruction.label = str(op.params[0])
                current_instruction.snapshot_type = str(op.params[1])
            if op.name == 'unitary':
                if op._label:
                    current_instruction.label = op._label
            if op.control:
                # To convert to a qobj-style conditional, insert a bfunc prior
                # to the conditional instruction to map the creg ?= val condition
                # onto a gating register bit.
                mask = 0
                val = 0

                for clbit in clbit_labels:
                    if clbit[0] == op.control[0].name:
                        mask |= (1 << clbit_labels.index(clbit))
                        val |= (((op.control[1] >> clbit[1]) & 1) <<
                                clbit_labels.index(clbit))

                conditional_reg_idx = memory_slots + max_conditional_idx
                conversion_bfunc = QasmQobjInstruction(
                    name='bfunc',
                    mask="0x%X" % mask,
                    relation='==',
                    val="0x%X" % val,
                    register=conditional_reg_idx)
                instructions.append(conversion_bfunc)

                current_instruction.conditional = conditional_reg_idx
                max_conditional_idx += 1

            instructions.append(current_instruction)

        experiments.append(
            QasmQobjExperiment(instructions=instructions,
                               header=experimentheader,
                               config=experimentconfig))
        if n_qubits > max_n_qubits:
            max_n_qubits = n_qubits
        if memory_slots > max_memory_slots:
            max_memory_slots = memory_slots

    qobj_config.memory_slots = max_memory_slots
    qobj_config.n_qubits = max_n_qubits

    return QasmQobj(qobj_id=qobj_id,
                    config=qobj_config,
                    experiments=experiments,
                    header=qobj_header)
Пример #6
0
def assemble_circuits(circuits, run_config=None, qobj_header=None, qobj_id=None):
    """Assembles a list of circuits into a qobj which can be run on the backend.

    Args:
        circuits (list[QuantumCircuits] or QuantumCircuit): circuits to assemble
        run_config (RunConfig): RunConfig object
        qobj_header (QobjHeader): header to pass to the results
        qobj_id (int): identifier for the generated qobj

    Returns:
        QasmQobj: the Qobj to be run on the backends
    """
    qobj_header = qobj_header or QobjHeader()
    run_config = run_config or RunConfig()
    if isinstance(circuits, QuantumCircuit):
        circuits = [circuits]

    userconfig = QasmQobjConfig(**run_config.to_dict())
    experiments = []
    max_n_qubits = 0
    max_memory_slots = 0
    for circuit in circuits:
        # header stuff
        n_qubits = 0
        memory_slots = 0
        qubit_labels = []
        clbit_labels = []

        qreg_sizes = []
        creg_sizes = []
        for qreg in circuit.qregs:
            qreg_sizes.append([qreg.name, qreg.size])
            for j in range(qreg.size):
                qubit_labels.append([qreg.name, j])
            n_qubits += qreg.size
        for creg in circuit.cregs:
            creg_sizes.append([creg.name, creg.size])
            for j in range(creg.size):
                clbit_labels.append([creg.name, j])
            memory_slots += creg.size

        # TODO: why do we need creq_sizes and qreg_sizes in header
        # TODO: we need to rethink memory_slots as they are tied to classical bit
        experimentheader = QobjExperimentHeader(qubit_labels=qubit_labels,
                                                n_qubits=n_qubits,
                                                qreg_sizes=qreg_sizes,
                                                clbit_labels=clbit_labels,
                                                memory_slots=memory_slots,
                                                creg_sizes=creg_sizes,
                                                name=circuit.name)
        # TODO: why do we need n_qubits and memory_slots in both the header and the config
        experimentconfig = QasmQobjExperimentConfig(n_qubits=n_qubits, memory_slots=memory_slots)

        instructions = []
        for op_context in circuit.data:
            op = op_context[0]
            qargs = op_context[1]
            cargs = op_context[2]
            current_instruction = QasmQobjInstruction(name=op.name)
            if qargs:
                qubit_indices = [qubit_labels.index([qubit[0].name, qubit[1]])
                                 for qubit in qargs]
                current_instruction.qubits = qubit_indices
            if cargs:
                clbit_indices = [clbit_labels.index([clbit[0].name, clbit[1]])
                                 for clbit in cargs]
                current_instruction.memory = clbit_indices

            if op.params:
                params = list(map(lambda x: x.evalf(), op.params))
                params = [sympy.matrix2numpy(x, dtype=complex)
                          if isinstance(x, sympy.Matrix) else x for x in params]
                if len(params) == 1 and isinstance(params[0], numpy.ndarray):
                    # TODO: Aer expects list of rows for unitary instruction params;
                    # change to matrix in Aer.
                    params = params[0]
                current_instruction.params = params
            # TODO: I really dont like this for snapshot. I also think we should change
            # type to snap_type
            if op.name == "snapshot":
                current_instruction.label = str(op.params[0])
                current_instruction.type = str(op.params[1])
            if op.name == 'unitary':
                if op._label:
                    current_instruction.label = op._label
            if op.control:
                mask = 0
                for clbit in clbit_labels:
                    if clbit[0] == op.control[0].name:
                        mask |= (1 << clbit_labels.index(clbit))

                current_instruction.conditional = QobjConditional(mask="0x%X" % mask,
                                                                  type='equals',
                                                                  val="0x%X" % op.control[1])

            instructions.append(current_instruction)
        experiments.append(QasmQobjExperiment(instructions=instructions, header=experimentheader,
                                              config=experimentconfig))
        if n_qubits > max_n_qubits:
            max_n_qubits = n_qubits
        if memory_slots > max_memory_slots:
            max_memory_slots = memory_slots

    userconfig.memory_slots = max_memory_slots
    userconfig.n_qubits = max_n_qubits

    return QasmQobj(qobj_id=qobj_id or str(uuid.uuid4()), config=userconfig,
                    experiments=experiments, header=qobj_header)