def circuits_to_qobj(circuits,
user_qobj_header=None,
run_config=None,
qobj_id=None,
backend_name=None,
config=None,
shots=None,
max_credits=None,
basis_gates=None,
coupling_map=None,
seed=None,
memory=None):
"""Convert a list of circuits into a qobj.
Args:
circuits (list[QuantumCircuits] or QuantumCircuit): circuits to compile
user_qobj_header (QobjHeader): header to pass to the results
run_config (RunConfig): RunConfig object
qobj_id (int): identifier for the generated qobj
backend_name (str): TODO: delete after qiskit-terra 0.8
config (dict): TODO: delete after qiskit-terra 0.8
shots (int): TODO: delete after qiskit-terra 0.8
max_credits (int): TODO: delete after qiskit-terra 0.8
basis_gates (str): TODO: delete after qiskit-terra 0.8
coupling_map (list): TODO: delete after qiskit-terra 0.8
seed (int): TODO: delete after qiskit-terra 0.8
memory (bool): TODO: delete after qiskit-terra 0.8
Returns:
Qobj: the Qobj to be run on the backends
"""
user_qobj_header = user_qobj_header or QobjHeader()
run_config = run_config or RunConfig()
if isinstance(circuits, QuantumCircuit):
circuits = [circuits]
if backend_name:
warnings.warn('backend_name is not required anymore',
DeprecationWarning)
user_qobj_header.backend_name = backend_name
if config:
warnings.warn(
'config is not used anymore. Set all configs in '
'run_config.', DeprecationWarning)
if shots:
warnings.warn('shots is not used anymore. Set it via run_config.',
DeprecationWarning)
run_config.shots = shots
if basis_gates:
warnings.warn('basis_gates was unused and will be removed.',
DeprecationWarning)
if coupling_map:
warnings.warn('coupling_map was unused and will be removed.',
DeprecationWarning)
if seed:
warnings.warn('seed is not used anymore. Set it via run_config',
DeprecationWarning)
run_config.seed = seed
if memory:
warnings.warn('memory is not used anymore. Set it via run_config',
DeprecationWarning)
run_config.memory = memory
if max_credits:
warnings.warn('max_credits is not used anymore. Set it via run_config',
DeprecationWarning)
run_config.max_credits = max_credits
userconfig = QobjConfig(**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
# TODO: when no more backends use the compiled_circuit_qasm lets delete it form header
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,
compiled_circuit_qasm=circuit.qasm())
# TODO: why do we need n_qubits and memory_slots in both the header and the config
experimentconfig = QobjExperimentConfig(n_qubits=n_qubits,
memory_slots=memory_slots)
instructions = []
for opt in circuit.data:
current_instruction = QobjInstruction(name=opt.name)
if opt.qargs:
qubit_indices = [
qubit_labels.index([qubit[0].name, qubit[1]])
for qubit in opt.qargs
]
current_instruction.qubits = qubit_indices
if opt.cargs:
clbit_indices = [
clbit_labels.index([clbit[0].name, clbit[1]])
for clbit in opt.cargs
]
current_instruction.memory = clbit_indices
if opt.params:
params = list(map(lambda x: x.evalf(), opt.params))
current_instruction.params = params
# TODO: I really dont like this for snapshot. I also think we should change
# type to snap_type
if opt.name == "snapshot":
current_instruction.label = str(opt.params[0])
current_instruction.type = str(opt.params[1])
if opt.control:
mask = 0
for clbit in clbit_labels:
if clbit[0] == opt.control[0].name:
mask |= (1 << clbit_labels.index(clbit))
current_instruction.conditional = QobjConditional(
mask="0x%X" % mask,
type='equals',
val="0x%X" % opt.control[1])
instructions.append(current_instruction)
experiments.append(
QobjExperiment(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 Qobj(qobj_id=qobj_id or str(uuid.uuid4()),
config=userconfig,
experiments=experiments,
header=user_qobj_header)
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:
Qobj: 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 = QobjConfig(**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 = QobjExperimentConfig(n_qubits=n_qubits,
memory_slots=memory_slots)
instructions = []
for opt in circuit.data:
current_instruction = QobjInstruction(name=opt.name)
if opt.qargs:
qubit_indices = [
qubit_labels.index([qubit[0].name, qubit[1]])
for qubit in opt.qargs
]
current_instruction.qubits = qubit_indices
if opt.cargs:
clbit_indices = [
clbit_labels.index([clbit[0].name, clbit[1]])
for clbit in opt.cargs
]
current_instruction.memory = clbit_indices
if opt.params:
params = list(map(lambda x: x.evalf(), opt.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 (jay): I really dont like this for snapshot. I also think we should change
# type to snap_type
if opt.name == "snapshot":
current_instruction.label = str(opt.params[0])
current_instruction.type = str(opt.params[1])
if opt.control:
mask = 0
for clbit in clbit_labels:
if clbit[0] == opt.control[0].name:
mask |= (1 << clbit_labels.index(clbit))
current_instruction.conditional = QobjConditional(
mask="0x%X" % mask,
type='equals',
val="0x%X" % opt.control[1])
instructions.append(current_instruction)
experiments.append(
QobjExperiment(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 Qobj(qobj_id=qobj_id or str(uuid.uuid4()),
config=userconfig,
experiments=experiments,
header=qobj_header,
type=QobjType.QASM.value)
