class TestScheduledCircuit(QiskitTestCase):
"""Test scheduled circuit (quantum circuit with duration)."""
def setUp(self):
super().setUp()
self.backend_with_dt = FakeParis()
self.backend_without_dt = FakeParis()
delattr(self.backend_without_dt.configuration(), 'dt')
self.dt = 2.2222222222222221e-10
def test_schedule_circuit_when_backend_tells_dt(self):
"""dt is known to transpiler by backend"""
qc = QuantumCircuit(2)
qc.delay(0.1, 0, unit='ms') # 450000[dt]
qc.delay(100, 0, unit='ns') # 450[dt]
qc.h(0) # 160[dt]
qc.h(1) # 160[dt]
sc = transpile(qc, self.backend_with_dt, scheduling_method='alap')
self.assertEqual(sc.duration, 450610)
self.assertEqual(sc.unit, 'dt')
self.assertEqual(sc.data[1][0].name, "delay")
self.assertEqual(sc.data[1][0].duration, 450)
self.assertEqual(sc.data[1][0].unit, 'dt')
self.assertEqual(sc.data[2][0].name, "rz")
self.assertEqual(sc.data[2][0].duration, 0)
self.assertEqual(sc.data[2][0].unit, 'dt')
self.assertEqual(sc.data[5][0].name, "delay")
self.assertEqual(sc.data[5][0].duration, 450450)
self.assertEqual(sc.data[5][0].unit, 'dt')
qobj = assemble(sc, self.backend_with_dt)
self.assertEqual(qobj.experiments[0].instructions[1].name, "delay")
self.assertEqual(qobj.experiments[0].instructions[1].params[0], 450)
self.assertEqual(qobj.experiments[0].instructions[5].name, "delay")
self.assertEqual(qobj.experiments[0].instructions[5].params[0], 450450)
def test_schedule_circuit_when_transpile_option_tells_dt(self):
"""dt is known to transpiler by transpile option"""
qc = QuantumCircuit(2)
qc.delay(0.1, 0, unit='ms') # 450000[dt]
qc.delay(100, 0, unit='ns') # 450[dt]
qc.h(0)
qc.h(1)
sc = transpile(qc,
self.backend_without_dt,
scheduling_method='alap',
dt=self.dt)
self.assertEqual(sc.duration, 450610)
self.assertEqual(sc.unit, 'dt')
self.assertEqual(sc.data[1][0].name, "delay")
self.assertEqual(sc.data[1][0].duration, 450)
self.assertEqual(sc.data[1][0].unit, 'dt')
self.assertEqual(sc.data[2][0].name, "rz")
self.assertEqual(sc.data[2][0].duration, 0)
self.assertEqual(sc.data[2][0].unit, 'dt')
self.assertEqual(sc.data[5][0].name, "delay")
self.assertEqual(sc.data[5][0].duration, 450450)
self.assertEqual(sc.data[5][0].unit, 'dt')
def test_schedule_circuit_in_sec_when_no_one_tells_dt(self):
"""dt is unknown and all delays and gate times are in SI"""
qc = QuantumCircuit(2)
qc.delay(0.1, 0, unit='ms')
qc.delay(100, 0, unit='ns')
qc.h(0)
qc.h(1)
sc = transpile(qc, self.backend_without_dt, scheduling_method='alap')
self.assertAlmostEqual(sc.duration, 450610 * self.dt)
self.assertEqual(sc.unit, 's')
self.assertEqual(sc.data[1][0].name, "delay")
self.assertAlmostEqual(sc.data[1][0].duration, 1.0e-7)
self.assertEqual(sc.data[1][0].unit, 's')
self.assertEqual(sc.data[2][0].name, "rz")
self.assertAlmostEqual(sc.data[2][0].duration, 160 * self.dt)
self.assertEqual(sc.data[2][0].unit, 's')
self.assertEqual(sc.data[5][0].name, "delay")
self.assertAlmostEqual(sc.data[5][0].duration, 1.0e-4 + 1.0e-7)
self.assertEqual(sc.data[5][0].unit, 's')
with self.assertRaises(QiskitError):
assemble(sc, self.backend_without_dt)
def test_cannot_schedule_circuit_with_mixed_SI_and_dt_when_no_one_tells_dt(
self):
"""dt is unknown but delays and gate times have a mix of SI and dt"""
qc = QuantumCircuit(2)
qc.delay(100, 0, unit='ns')
qc.delay(30, 0, unit='dt')
qc.h(0)
qc.h(1)
with self.assertRaises(QiskitError):
transpile(qc, self.backend_without_dt, scheduling_method='alap')
def test_transpile_single_delay_circuit(self):
qc = QuantumCircuit(1)
qc.delay(1234, 0)
sc = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='alap')
self.assertEqual(sc.duration, 1234)
self.assertEqual(sc.data[0][0].name, "delay")
self.assertEqual(sc.data[0][0].duration, 1234)
self.assertEqual(sc.data[0][0].unit, 'dt')
def test_transpile_t1_circuit(self):
qc = QuantumCircuit(1)
qc.x(0) # 320 [dt]
qc.delay(1000, 0, unit='ns') # 4500 [dt]
qc.measure_all() # 19584 [dt]
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='alap')
self.assertEqual(scheduled.duration, 23060)
def test_transpile_delay_circuit_with_backend(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(100, 1, unit='ns') # 450 [dt]
qc.cx(0, 1) # 1760 [dt]
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='alap')
self.assertEqual(scheduled.duration, 2082)
def test_transpile_delay_circuit_without_backend(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500, 1)
qc.cx(0, 1)
scheduled = transpile(qc,
scheduling_method='alap',
instruction_durations=[('h', 0, 200),
('cx', [0, 1], 700)])
self.assertEqual(scheduled.duration, 1200)
def test_transpile_circuit_with_custom_instruction(self):
"""See: https://github.com/Qiskit/qiskit-terra/issues/5154"""
bell = QuantumCircuit(2, name="bell")
bell.h(0)
bell.cx(0, 1)
qc = QuantumCircuit(2)
qc.delay(500, 1)
qc.append(bell.to_instruction(), [0, 1])
scheduled = transpile(qc,
scheduling_method='alap',
instruction_durations=[('bell', [0, 1], 1000)])
self.assertEqual(scheduled.duration, 1500)
def test_transpile_delay_circuit_without_scheduling_method(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500, 1)
qc.cx(0, 1)
transpiled = transpile(qc, backend=self.backend_with_dt)
self.assertEqual(transpiled.duration, 2132)
def test_transpile_delay_circuit_without_scheduling_method_or_durs(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500, 1)
qc.cx(0, 1)
with self.assertRaises(TranspilerError):
transpile(qc)
def test_raise_error_if_transpile_with_scheduling_method_but_without_durations(
self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500, 1)
qc.cx(0, 1)
with self.assertRaises(TranspilerError):
transpile(qc, scheduling_method="alap")
def test_invalidate_schedule_circuit_if_new_instruction_is_appended(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500 * self.dt, 1, 's')
qc.cx(0, 1)
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='alap')
# append a gate to a scheduled circuit
scheduled.h(0)
self.assertEqual(scheduled.duration, None)
def test_default_units_for_my_own_duration_users(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500, 1)
qc.cx(0, 1)
# accept None for qubits
scheduled = transpile(qc,
basis_gates=['h', 'cx', 'delay'],
scheduling_method='alap',
instruction_durations=[('h', 0, 200),
('cx', None, 900)])
self.assertEqual(scheduled.duration, 1400)
# prioritize specified qubits over None
scheduled = transpile(qc,
basis_gates=['h', 'cx', 'delay'],
scheduling_method='alap',
instruction_durations=[('h', 0, 200),
('cx', None, 900),
('cx', [0, 1], 800)])
self.assertEqual(scheduled.duration, 1300)
def test_unit_seconds_when_using_backend_durations(self):
qc = QuantumCircuit(2)
qc.h(0)
qc.delay(500 * self.dt, 1, 's')
qc.cx(0, 1)
# usual case
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='alap')
self.assertEqual(scheduled.duration, 2132)
# update durations
durations = InstructionDurations.from_backend(self.backend_with_dt)
durations.update([('cx', [0, 1], 1000 * self.dt, 's')])
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='alap',
instruction_durations=durations)
self.assertEqual(scheduled.duration, 1500)
def test_per_qubit_durations(self):
"""See: https://github.com/Qiskit/qiskit-terra/issues/5109"""
qc = QuantumCircuit(3)
qc.h(0)
qc.delay(500, 1)
qc.cx(0, 1)
qc.h(1)
sc = transpile(qc,
scheduling_method='alap',
instruction_durations=[('h', None, 200),
('cx', [0, 1], 700)])
self.assertEqual(sc.qubit_start_time(0), 300)
self.assertEqual(sc.qubit_stop_time(0), 1200)
self.assertEqual(sc.qubit_start_time(1), 500)
self.assertEqual(sc.qubit_stop_time(1), 1400)
self.assertEqual(sc.qubit_start_time(2), 0)
self.assertEqual(sc.qubit_stop_time(2), 0)
self.assertEqual(sc.qubit_start_time(0, 1), 300)
self.assertEqual(sc.qubit_stop_time(0, 1), 1400)
qc.measure_all()
sc = transpile(qc,
scheduling_method='alap',
instruction_durations=[('h', None, 200),
('cx', [0, 1], 700),
('measure', None, 1000)])
q = sc.qubits
self.assertEqual(sc.qubit_start_time(q[0]), 300)
self.assertEqual(sc.qubit_stop_time(q[0]), 2400)
self.assertEqual(sc.qubit_start_time(q[1]), 500)
self.assertEqual(sc.qubit_stop_time(q[1]), 2400)
self.assertEqual(sc.qubit_start_time(q[2]), 1400)
self.assertEqual(sc.qubit_stop_time(q[2]), 2400)
self.assertEqual(sc.qubit_start_time(*q), 300)
self.assertEqual(sc.qubit_stop_time(*q), 2400)
def test_change_dt_in_transpile(self):
qc = QuantumCircuit(1, 1)
qc.x(0)
qc.measure(0, 0)
# default case
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='asap')
org_duration = scheduled.duration
# halve dt in sec = double duration in dt
scheduled = transpile(qc,
backend=self.backend_with_dt,
scheduling_method='asap',
dt=self.dt / 2)
self.assertEqual(scheduled.duration, org_duration * 2)
@data('asap', 'alap')
def test_duration_on_same_instruction_instance(self, scheduling_method):
"""See: https://github.com/Qiskit/qiskit-terra/issues/5771"""
assert (self.backend_with_dt.properties().gate_length('cx', (0, 1)) !=
self.backend_with_dt.properties().gate_length('cx', (1, 2)))
qc = QuantumCircuit(3)
qc.cz(0, 1)
qc.cz(1, 2)
sc = transpile(qc,
backend=self.backend_with_dt,
scheduling_method=scheduling_method)
cxs = [inst for inst, _, _ in sc.data if inst.name == 'cx']
self.assertNotEqual(cxs[0].duration, cxs[1].duration)