def test_hqp_equality():
hqp = cg.HardcodedQubitPlacer(
{cirq.LineTopology(5): dict(enumerate(cirq.LineQubit.range(5)))})
hqp2 = cg.HardcodedQubitPlacer(
{cirq.LineTopology(5): dict(enumerate(cirq.LineQubit.range(5)))})
assert hqp == hqp2
cirq.testing.assert_equivalent_repr(hqp, global_vals={'cirq_google': cg})
hqp3 = cg.HardcodedQubitPlacer({
cirq.LineTopology(5):
dict(enumerate(cirq.LineQubit.range(1, 5 + 1)))
})
assert hqp != hqp3
def _get_quantum_executables():
qubits = cirq.GridQubit.rect(1, 5, 5, 0)
return [
QuantumExecutable(
spec=_get_example_spec(name=f'example-program-{i}'),
problem_topology=cirq.LineTopology(5),
circuit=_get_random_circuit(qubits, random_state=i),
measurement=BitstringsMeasurement(n_repetitions=10),
) for i in range(3)
]
def test_random_device_placer_bad_device():
topo = cirq.LineTopology(8)
qubits = cirq.LineQubit.range(8)
circuit = cirq.testing.random_circuit(qubits, n_moments=8, op_density=1.0, random_state=52)
qp = cg.RandomDevicePlacer()
with pytest.raises(ValueError, match=r'.*shared_rt_info\.device.*'):
qp.place_circuit(
circuit,
problem_topology=topo,
shared_rt_info=cg.SharedRuntimeInfo(run_id='1'),
rs=np.random.RandomState(1),
)
def test_quantum_runtime_configuration_qubit_placer(rt_config):
device = rt_config.processor_record.get_device()
c, _ = rt_config.qubit_placer.place_circuit(
cirq.Circuit(cirq.measure(cirq.LineQubit(0), cirq.LineQubit(1), key='z')),
problem_topology=cirq.LineTopology(n_nodes=2),
shared_rt_info=cg.SharedRuntimeInfo(run_id=rt_config.run_id, device=device),
rs=np.random.RandomState(rt_config.random_seed),
)
if isinstance(rt_config.qubit_placer, cg.NaiveQubitPlacer):
assert all(isinstance(q, cirq.LineQubit) for q in c.all_qubits())
else:
assert all(isinstance(q, cirq.GridQubit) for q in c.all_qubits())
def test_hqp_missing_placement():
hqp = cg.HardcodedQubitPlacer(
{cirq.LineTopology(5): dict(enumerate(cirq.LineQubit.range(5)))})
circuit = cirq.testing.random_circuit(cirq.LineQubit.range(5),
n_moments=2,
op_density=1)
shared_rt_info = cg.SharedRuntimeInfo(run_id='example')
rs = np.random.RandomState(10)
placed_c, _ = hqp.place_circuit(circuit,
problem_topology=cirq.LineTopology(5),
shared_rt_info=shared_rt_info,
rs=rs)
assert isinstance(placed_c, cirq.AbstractCircuit)
circuit = cirq.testing.random_circuit(cirq.LineQubit.range(6),
n_moments=2,
op_density=1)
with pytest.raises(cg.CouldNotPlaceError):
hqp.place_circuit(circuit,
problem_topology=cirq.LineTopology(6),
shared_rt_info=shared_rt_info,
rs=rs)
def test_random_device_placer_line():
topo = cirq.LineTopology(8)
qubits = cirq.LineQubit.range(8)
circuit = cirq.testing.random_circuit(qubits, n_moments=8, op_density=1.0, random_state=52)
qp = cg.RandomDevicePlacer()
circuit2, mapping = qp.place_circuit(
circuit,
problem_topology=topo,
shared_rt_info=cg.SharedRuntimeInfo(run_id='1', device=cg.Sycamore23),
rs=np.random.RandomState(1),
)
assert circuit is not circuit2
assert circuit != circuit2
assert all(q in cg.Sycamore23.qubit_set() for q in circuit2.all_qubits())
for k, v in mapping.items():
assert k != v