def run(self, q_job):
"""Run circuits in q_job"""
# Generating a string id for the job
result_list = []
qobj = q_job.qobj
self._validate(qobj)
self._sim = Simulator(gate_fusion=True)
if 'seed' in qobj['config']:
self._seed = qobj['config']['seed']
self._sim._simulator = CppSim(self._seed)
else:
self._seed = random.getrandbits(32)
self._shots = qobj['config']['shots']
start = time.time()
for circuit in qobj['circuits']:
result_list.append(self.run_circuit(circuit))
end = time.time()
result = {
'backend': self._configuration['name'],
'id': qobj['id'],
'result': result_list,
'status': 'COMPLETED',
'success': True,
'time_taken': (end - start)
}
return Result(result, qobj)
def sim(request):
if request.param == "cpp_simulator":
from projectq.backends._sim._cppsim import Simulator as CppSim
sim = Simulator(gate_fusion=True)
sim._simulator = CppSim(1)
return sim
if request.param == "py_simulator":
from projectq.backends._sim._pysim import Simulator as PySim
sim = Simulator()
sim._simulator = PySim(1)
return sim
def sim(request):
if request.param == "cpp_simulator":
from projectq.backends._sim._cppsim import Simulator as CppSim
sim = Simulator(gate_fusion=True)
sim._simulator = CppSim(1)
# If an ImportError occurs, the C++ simulator was either not installed
# or compiled for a different Python version.
return sim
if request.param == "py_simulator":
from projectq.backends._sim._pysim import Simulator as PySim
sim = Simulator()
sim._simulator = PySim(1)
return sim
def test_simulator_constant_math_emulation():
if "cpp_simulator" not in get_available_simulators():
pytest.skip("No C++ simulator")
return
results = [[[1, 1, 0, 0, 0]], [[0, 1, 0, 0, 0]], [[0, 1, 1, 1, 0]]]
import projectq.backends._sim._simulator as _sim
from projectq.backends._sim._pysim import Simulator as PySim
from projectq.backends._sim._cppsim import Simulator as CppSim
from projectq.libs.math import (AddConstant, AddConstantModN,
MultiplyByConstantModN)
def gate_filter(eng, cmd):
g = cmd.gate
if isinstance(g, BasicMathGate):
return False
return eng.next_engine.is_available(cmd)
def run_simulation(sim):
eng = MainEngine(sim, [])
quint = eng.allocate_qureg(5)
AddConstant(3) | quint
All(Measure) | quint
eng.flush()
results[0].append([int(qb) for qb in quint])
AddConstantModN(4, 5) | quint
All(Measure) | quint
eng.flush()
results[1].append([int(qb) for qb in quint])
MultiplyByConstantModN(15, 16) | quint
All(Measure) | quint
eng.flush()
results[2].append([int(qb) for qb in quint])
cppsim = Simulator(gate_fusion=False)
cppsim._simulator = CppSim(1)
run_simulation(cppsim)
_sim.FALLBACK_TO_PYSIM = True
pysim = Simulator()
pysim._simulator = PySim(1)
# run_simulation(pysim)
for result in results:
ref = result[0]
for res in result[1:]:
assert ref == res
def _run_job(self, job_id, qobj):
"""Run circuits in qobj and return the result
Args:
qobj (Qobj): Qobj structure
job_id (str): A job id
Returns:
qiskit.Result: Result is a class including the information to be returned to users.
Specifically, result_list in the return contains the essential information,
which looks like this::
[{'data':
{
'counts': {'000': 40, '111': 60}
},
'status': 'DONE'
}]
"""
result_list = []
self._validate(qobj)
self._sim = Simulator(gate_fusion=True)
if hasattr(qobj.config, 'seed'):
self._seed = qobj.config.seed
self._sim._simulator = CppSim(self._seed)
else:
self._seed = random.getrandbits(32)
self._shots = qobj.config.shots
start = time.time()
for circuit in qobj.experiments:
result_list.append(self.run_circuit(circuit))
end = time.time()
job_id = str(uuid.uuid4())
result = {
'backend_name': self._configuration.backend_name,
'backend_version': '0.1.0',
'qobj_id': qobj.qobj_id,
'job_id': job_id,
'results': result_list,
'status': 'COMPLETED',
'success': True,
'time_taken': (end - start)
}
return Result.from_dict(result)
def run(self, q_job):
"""Run circuits in q_job"""
# Generating a string id for the job
job_id = str(uuid.uuid4())
result_list = []
qobj = q_job.qobj
self._sim = Simulator(gate_fusion=True)
if 'seed' in qobj['config']:
self._seed = qobj['config']['seed']
self._sim._simulator = CppSim(self._seed)
else:
self._seed = random.getrandbits(32)
self._shots = qobj['config']['shots']
for circuit in qobj['circuits']:
result_list.append(self.run_circuit(circuit))
return Result({'job_id': job_id, 'result': result_list,
'status': 'COMPLETED'},
qobj)
def run_circuit(self, circuit):
"""Run a circuit and return a single Result.
Args:
circuit (dict): JSON circuit from qobj circuits list
Returns:
dict: A dictionary of results which looks something like::
{
"data":
{ #### DATA CAN BE A DIFFERENT DICTIONARY FOR EACH BACKEND ####
"counts": {'00000': XXXX, '00001': XXXXX},
"time" : xx.xxxxxxxx
},
"status": --status (string)--
}
Raises:
SimulatorError: if an error occurred.
"""
# pylint: disable=expression-not-assigned,pointless-statement
ccircuit = circuit['compiled_circuit']
self._number_of_qubits = ccircuit['header']['number_of_qubits']
self._number_of_clbits = ccircuit['header']['number_of_clbits']
self._statevector = 0
self._classical_state = 0
cl_reg_index = [] # starting bit index of classical register
cl_reg_nbits = [] # number of bits in classical register
clbit_index = 0
qobj_quregs = OrderedDict(
_get_register_specs(ccircuit['header']['qubit_labels']))
eng = MainEngine(backend=self._sim)
for cl_reg in ccircuit['header']['clbit_labels']:
cl_reg_nbits.append(cl_reg[1])
cl_reg_index.append(clbit_index)
clbit_index += cl_reg[1]
# let circuit seed override qobj default
if 'config' in circuit:
if 'seed' in circuit['config']:
if circuit['config']['seed'] is not None:
self._sim._simulator = CppSim(circuit['config']['seed'])
outcomes = []
start = time.time()
for _ in range(self._shots):
self._statevector = np.zeros(1 << self._number_of_qubits,
dtype=complex)
self._statevector[0] = 1
# initialize starting state
self._classical_state = 0
unmeasured_qubits = list(range(self._number_of_qubits))
projq_qureg_dict = OrderedDict(
((key, eng.allocate_qureg(size))
for key, size in qobj_quregs.items()))
qureg = [
qubit for sublist in projq_qureg_dict.values()
for qubit in sublist
]
# Do each operation in this shot
for operation in ccircuit['operations']:
if 'conditional' in operation:
mask = int(operation['conditional']['mask'], 16)
if mask > 0:
value = self._classical_state & mask
while (mask & 0x1) == 0:
mask >>= 1
value >>= 1
if value != int(operation['conditional']['val'], 16):
continue
# Check if single gate
if operation['name'] in ['U', 'u3']:
params = operation['params']
qubit = qureg[operation['qubits'][0]]
Rz(params[2]) | qubit
Ry(params[0]) | qubit
Rz(params[1]) | qubit
elif operation['name'] in ['u1']:
params = operation['params']
qubit = qureg[operation['qubits'][0]]
Rz(params[0]) | qubit
elif operation['name'] in ['u2']:
params = operation['params']
qubit = qureg[operation['qubits'][0]]
Rz(params[1] - np.pi / 2) | qubit
Rx(np.pi / 2) | qubit
Rz(params[0] + np.pi / 2) | qubit
elif operation['name'] == 't':
qubit = qureg[operation['qubits'][0]]
T | qubit
elif operation['name'] == 'h':
qubit = qureg[operation['qubits'][0]]
H | qubit
elif operation['name'] == 's':
qubit = qureg[operation['qubits'][0]]
S | qubit
elif operation['name'] in ['CX', 'cx']:
qubit0 = qureg[operation['qubits'][0]]
qubit1 = qureg[operation['qubits'][1]]
CX | (qubit0, qubit1)
elif operation['name'] in ['id', 'u0']:
pass
# Check if measure
elif operation['name'] == 'measure':
qubit_index = operation['qubits'][0]
qubit = qureg[qubit_index]
clbit = operation['clbits'][0]
Measure | qubit
bit = 1 << clbit
self._classical_state = (self._classical_state &
(~bit)) | (int(qubit) << clbit)
# check whether we already measured this qubit
if operation['qubits'][0] in unmeasured_qubits:
unmeasured_qubits.remove(operation['qubits'][0])
# Check if reset
elif operation['name'] == 'reset':
qubit = operation['qubits'][0]
raise SimulatorError('Reset operation not yet implemented '
'for ProjectQ C++ backend')
elif operation['name'] == 'barrier':
pass
else:
backend = self._configuration['name']
err_msg = '{0} encountered unrecognized operation "{1}"'
raise SimulatorError(
err_msg.format(backend, operation['name']))
for ind in unmeasured_qubits:
qubit = qureg[ind]
Measure | qubit
eng.flush()
# Turn classical_state (int) into bit string
state = format(self._classical_state, 'b')
outcomes.append(state.zfill(self._number_of_clbits))
# Return the results
counts = dict(Counter(outcomes))
data = {'counts': _format_result(counts, cl_reg_index, cl_reg_nbits)}
if self._shots == 1:
# TODO: deprecated -- remove in v0.6
data['statevector'] = self._statevector
data['quantum_state'] = self._statevector
data['classical_state'] = self._classical_state
end = time.time()
return {
'name': circuit['name'],
'seed': self._seed,
'shots': self._shots,
'data': data,
'status': 'DONE',
'success': True,
'time_taken': (end - start)
}
def run_circuit(self, circuit):
"""Run a circuit and return a single Result.
Args:
circuit (QobjExperiment): Qobj experiment
Returns:
dict: A dictionary of results which looks something like:
{
"data":
{ #### DATA CAN BE A DIFFERENT DICTIONARY FOR EACH BACKEND ####
"counts": {'00000': XXXX, '00001': XXXXX},
"time" : xx.xxxxxxxx
},
"status": --status (string)--
}
Raises:
ProjectQSimulatorError: if an error occurred.
"""
# pylint: disable=expression-not-assigned,pointless-statement
self._number_of_qubits = circuit.config.n_qubits
self._number_of_clbits = circuit.config.memory_slots
self._classical_state = 0
cl_reg_index = [] # starting bit index of classical register
cl_reg_nbits = [] # number of bits in classical register
clbit_index = 0
qobj_quregs = OrderedDict(
_get_register_specs(circuit.header.qubit_labels))
eng = MainEngine(backend=self._sim)
for cl_reg in circuit.header.clbit_labels:
cl_reg_nbits.append(cl_reg[1])
cl_reg_index.append(clbit_index)
clbit_index += cl_reg[1]
# let circuit seed override qobj default
if hasattr(circuit, 'config'):
if hasattr(circuit.config, 'seed'):
if circuit.config.seed is not None:
self._sim._simulator = CppSim(circuit.config.seed)
outcomes = []
snapshots = {}
projq_qureg_dict = OrderedDict(((key, eng.allocate_qureg(size))
for key, size in qobj_quregs.items()))
if self._shots > 1:
ground_state = np.zeros(1 << self._number_of_qubits, dtype=complex)
ground_state[0] = 1
start = time.time()
for i in range(self._shots):
# initialize starting state
self._classical_state = 0
qureg = [
qubit for sublist in projq_qureg_dict.values()
for qubit in sublist
]
if i > 0:
eng.flush()
eng.backend.set_wavefunction(ground_state, qureg)
# Do each operation in this shot
for operation in circuit.instructions:
if hasattr(operation, 'conditional'):
mask = int(operation.conditional.mask, 16)
if mask > 0:
value = self._classical_state & mask
while (mask & 0x1) == 0:
mask >>= 1
value >>= 1
if value != int(operation.conditional.val, 16):
continue
# Check if single gate
if operation.name in ['U', 'u3']:
params = operation.params
qubit = qureg[operation.qubits[0]]
Rz(params[2]) | qubit
Ry(params[0]) | qubit
Rz(params[1]) | qubit
elif operation.name in ['u1']:
params = operation.params
qubit = qureg[operation.qubits[0]]
Rz(params[0]) | qubit
elif operation.name in ['u2']:
params = operation.params
qubit = qureg[operation.qubits[0]]
Rz(params[1] - np.pi / 2) | qubit
Rx(np.pi / 2) | qubit
Rz(params[0] + np.pi / 2) | qubit
elif operation.name == 't':
qubit = qureg[operation.qubits[0]]
T | qubit
elif operation.name == 'h':
qubit = qureg[operation.qubits[0]]
H | qubit
elif operation.name == 's':
qubit = qureg[operation.qubits[0]]
S | qubit
elif operation.name in ['CX', 'cx']:
qubit0 = qureg[operation.qubits[0]]
qubit1 = qureg[operation.qubits[1]]
CX | (qubit0, qubit1)
elif operation.name in ['id', 'u0']:
pass
# Check if measure
elif operation.name == 'measure':
qubit_index = operation.qubits[0]
qubit = qureg[qubit_index]
clbit = operation.memory[0]
Measure | qubit
bit = 1 << clbit
self._classical_state = (self._classical_state &
(~bit)) | (int(qubit) << clbit)
# Check if reset
elif operation.name == 'reset':
qubit = operation.qubits[0]
raise ProjectQSimulatorError(
'Reset operation not yet implemented '
'for ProjectQ C++ backend')
# Check if snapshot
elif operation.name == 'snapshot':
eng.flush()
location = str(operation.params[0])
statevector = np.array(eng.backend.cheat()[1],
dtype=complex)
formatted_state = [[x.real, x.imag] for x in statevector]
if location in snapshots:
snapshots[location]['statevector'].append(
formatted_state)
else:
snapshots[location] = {
'statevector': [formatted_state]
}
elif operation.name == 'barrier':
pass
else:
backend = self._configuration.backend_name
err_msg = '{0} encountered unrecognized operation "{1}"'
raise ProjectQSimulatorError(
err_msg.format(backend, operation.name))
# Before the program terminates, all the qubits must be measured,
# including those that have not been measured by the circuit.
# Otherwise ProjectQ throws an exception about qubits in superposition.
for ind in list(range(self._number_of_qubits)):
qubit = qureg[ind]
Measure | qubit
eng.flush()
# Turn classical_state (int) into bit string
state = format(self._classical_state, 'b')
outcomes.append(state.zfill(self._number_of_clbits))
# Return the results
counts = dict(Counter(outcomes))
data = {'counts': _format_result(counts, cl_reg_nbits)}
if snapshots != {}:
data['snapshots'] = snapshots
if self._shots == 1:
data['classical_state'] = self._classical_state
end = time.time()
# Calculate creg_sizes
pre_creg_sizes = {}
for clbit_label in circuit.header.clbit_labels:
if clbit_label[0] in pre_creg_sizes:
pre_creg_sizes[clbit_label[0]] += 1
else:
pre_creg_sizes[clbit_label[0]] = 1
creg_sizes = []
for clbit_label in pre_creg_sizes:
creg_sizes.append([clbit_label, pre_creg_sizes[clbit_label]])
return {
'header': {
'name': circuit.header.name,
'memory_slots': circuit.header.memory_slots,
'creg_sizes': creg_sizes
},
'seed': self._seed,
'shots': self._shots,
'data': data,
'status': 'DONE',
'success': True,
'time_taken': (end - start)
}