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test_sample.py
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test_sample.py
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from pygsti.baseobjs import Label
from pygsti.processors import QubitProcessorSpec
from ...util import BaseCase
#from pygsti.extras.rb import sample
class RBSampleTester(BaseCase):
@classmethod
def setUpClass(cls):
super(RBSampleTester, cls).setUpClass()
glist = ['Gxpi2', 'Gypi2', 'Gcnot'] # 'Gi',
cls.pspec_1 = QubitProcessorSpec(4, glist, qubit_labels=['Q0', 'Q1', 'Q2', 'Q3'], geometry='line')
# # XXX this takes nearly a minute to construct on my machine....
# glist = ['Gxpi', 'Gypi', 'Gzpi', 'Gh', 'Gp', 'Gcphase'] # 'Gi',
# availability = {'Gcphase': [(0, 1), (1, 2)]}
# cls.pspec_2 = QubitProcessorSpec(3, glist, availability=availability, geometry='line')
# XXX is this an OK test fixture? see above.
glist = ['Gxpi2', 'Gypi2', 'Gcphase'] # 'Gi',
availability = {'Gcphase': [(0, 1), (1, 2)]}
cls.pspec_2 = QubitProcessorSpec(3, glist, availability=availability, geometry='line')
glist = ['Gxpi2', 'Gxmpi2', 'Gypi2', 'Gympi2', 'Gcnot'] # 'Gi',
cls.pspec_inv = QubitProcessorSpec(4, glist, qubit_labels=['Q0', 'Q1', 'Q2', 'Q3'], geometry='line')
def test_clifford_rb_experiment(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
lengths = [0, 2, 5]
circuits_per_length = 2
subsetQs = ['Q1', 'Q2', 'Q3']
out = sample.clifford_rb_experiment(
self.pspec_1, lengths, circuits_per_length,
subsetQs=subsetQs, randomizeout=False, citerations=2,
compilerargs=[], descriptor='A Clifford RB experiment',
verbosity=0
)
for key in list(out['idealout'].keys()):
self.assertEqual(out['idealout'][key], (0, 0, 0))
self.assertEqual(len(out['circuits']), circuits_per_length * len(lengths))
out = sample.clifford_rb_experiment(
self.pspec_2, lengths, circuits_per_length,
subsetQs=None, randomizeout=False, citerations=1,
compilerargs=[], descriptor='A Clifford RB experiment',
verbosity=0
)
# TODO assert correctness
def test_circuit_layer_by_pairing_qubits(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
n = self.pspec_1.num_qubits
layer = sample.circuit_layer_by_pairing_qubits(
self.pspec_1, two_q_prob=0.0, one_q_gate_names='all',
two_q_gate_names='all', modelname='clifford'
)
self.assertEqual(len(layer), n)
layer = sample.circuit_layer_by_pairing_qubits(
self.pspec_1, two_q_prob=1.0, one_q_gate_names='all',
two_q_gate_names='all', modelname='clifford'
)
self.assertEqual(len(layer), n // 2)
layer = sample.circuit_layer_by_pairing_qubits(
self.pspec_1, two_q_prob=0.0, one_q_gate_names=['Gx'],
two_q_gate_names='all', modelname='clifford'
)
self.assertEqual(layer[0].name, 'Gx')
layer = sample.circuit_layer_by_pairing_qubits(
self.pspec_1, two_q_prob=0.0, one_q_gate_names=['Gxpi'],
two_q_gate_names='all', modelname='target'
)
self.assertEqual(layer[0].name, 'Gxpi')
def test_circuit_layer_by_Qelimination(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
n = self.pspec_2.num_qubits
layer = sample.circuit_layer_by_Qelimination(
self.pspec_2, two_q_prob=0.0, one_q_gates='all',
two_q_gates='all', modelname='clifford'
)
self.assertEqual(len(layer), self.pspec_2.num_qubits)
layer = sample.circuit_layer_by_Qelimination(
self.pspec_2, two_q_prob=1.0, one_q_gates='all',
two_q_gates='all', modelname='clifford'
)
self.assertEqual(len(layer), (n % 2) + n // 2)
def test_circuit_layer_by_co2Qgates(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
n = self.pspec_1.num_qubits
C01 = Label('Gcnot', ('Q0', 'Q1'))
C23 = Label('Gcnot', ('Q2', 'Q3'))
co2Qgates = [[], [C01, C23]]
layer = sample.circuit_layer_by_co2Qgates(
self.pspec_1, None, co2Qgates, co2_q_gates_prob='uniform',
two_q_prob=1.0, one_q_gate_names='all', modelname='clifford'
)
self.assertTrue(len(layer) == n or len(layer) == n // 2)
layer = sample.circuit_layer_by_co2Qgates(
self.pspec_1, None, co2Qgates, co2_q_gates_prob=[0., 1.],
two_q_prob=1.0, one_q_gate_names='all', modelname='clifford'
)
self.assertEqual(len(layer), n // 2)
layer = sample.circuit_layer_by_co2Qgates(
self.pspec_1, None, co2Qgates, co2_q_gates_prob=[1., 0.],
two_q_prob=1.0, one_q_gate_names=['Gx'], modelname='clifford'
)
self.assertEqual(len(layer), n)
self.assertEqual(layer[0].name, 'Gx')
co2Qgates = [[], [C23]]
layer = sample.circuit_layer_by_co2Qgates(
self.pspec_1, ['Q2', 'Q3'], co2Qgates,
co2_q_gates_prob=[0.25, 0.75], two_q_prob=0.5,
one_q_gate_names='all', modelname='clifford'
)
# TODO assert correctness
co2Qgates = [[C01]]
layer = sample.circuit_layer_by_co2Qgates(
self.pspec_1, None, co2Qgates, co2_q_gates_prob=[1.],
two_q_prob=1.0, one_q_gate_names='all', modelname='clifford'
)
self.assertEqual(layer[0].name, 'Gcnot')
self.assertEqual(len(layer), 3)
# Tests the nested co2Qgates option.
co2Qgates = [[], [[C01, C23], [C01]]]
layer = sample.circuit_layer_by_co2Qgates(
self.pspec_1, None, co2Qgates, co2_q_gates_prob='uniform',
two_q_prob=1.0, one_q_gate_names='all', modelname='clifford'
)
# TODO assert correctness
def test_circuit_layer_of_oneQgates(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
layer = sample.circuit_layer_of_oneQgates(
self.pspec_1, one_q_gate_names='all', pdist='uniform',
modelname='clifford'
)
self.assertEqual(len(layer), self.pspec_1.num_qubits)
layer = sample.circuit_layer_of_oneQgates(
self.pspec_1, subsetQs=['Q1', 'Q2'],
one_q_gate_names=['Gx', 'Gy'], pdist=[1., 0.],
modelname='clifford'
)
self.assertEqual(len(layer), 2)
self.assertEqual(layer[0].name, 'Gx')
layer = sample.circuit_layer_of_oneQgates(
self.pspec_1, subsetQs=['Q2'], one_q_gate_names=['Gx'],
pdist=[3.], modelname='clifford'
)
self.assertEqual(layer[0], Label('Gx', 'Q2'))
self.assertEqual(len(layer), 1)
layer = sample.circuit_layer_of_oneQgates(
self.pspec_1, one_q_gate_names=['Gx'], pdist='uniform',
modelname='clifford'
)
def test_random_circuit(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
C01 = Label('Gcnot', ('Q0', 'Q1'))
C23 = Label('Gcnot', ('Q2', 'Q3'))
co2Qgates = [[], [[C01, C23], [C01, ]]]
circuit = sample.random_circuit(self.pspec_1, length=100, sampler='Qelimination')
self.assertEqual(circuit.depth, 100)
circuit = sample.random_circuit(self.pspec_2, length=100, sampler='Qelimination',
samplerargs=[0.1, ], addlocal=True)
self.assertEqual(circuit.depth, 201)
self.assertLessEqual(len(circuit.get_layer(0)), self.pspec_2.num_qubits)
circuit = sample.random_circuit(self.pspec_1, length=100, sampler='pairingQs')
# TODO assert correctness
circuit = sample.random_circuit(
self.pspec_1, length=10, sampler='pairingQs',
samplerargs=[0.1, ['Gx', ]]
)
# TODO assert correctness
circuit = sample.random_circuit(self.pspec_1, length=100, sampler='co2Qgates', samplerargs=[co2Qgates])
# TODO assert correctness
circuit = sample.random_circuit(
self.pspec_1, length=100, sampler='co2Qgates',
samplerargs=[co2Qgates, [0.1, 0.2], 0.1], addlocal=True,
lsargs=[['Gx', ]]
)
self.assertEqual(circuit.depth, 201)
circuit = sample.random_circuit(self.pspec_1, length=5, sampler='local')
self.assertEqual(circuit.depth, 5)
circuit = sample.random_circuit(self.pspec_1, length=5, sampler='local', samplerargs=[['Gx']])
self.assertEqual(circuit[0, 'Q0'].name, 'Gx')
def test_direct_rb_experiment(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
lengths = [0, 2, 5]
circuits_per_length = 2
# Test DRB experiment with all defaults.
exp = sample.direct_rb_experiment(self.pspec_2, lengths, circuits_per_length, verbosity=0)
# TODO assert correctness
exp = sample.direct_rb_experiment(
self.pspec_2, lengths, circuits_per_length, subsetQs=[0, 1],
sampler='pairingQs', cliffordtwirl=False,
conditionaltwirl=False, citerations=2, partitioned=True,
verbosity=0
)
# TODO assert correctness
exp = sample.direct_rb_experiment(
self.pspec_2, lengths, circuits_per_length, subsetQs=[0, 1],
sampler='co2Qgates',
samplerargs=[[[], [Label('Gcphase', (0, 1)), ]], [0., 1.]],
cliffordtwirl=False, conditionaltwirl=False,
citerations=2, partitioned=True, verbosity=0
)
# TODO assert correctness
exp = sample.direct_rb_experiment(
self.pspec_2, lengths, circuits_per_length, subsetQs=[0, 1],
sampler='local', cliffordtwirl=False,
conditionaltwirl=False, citerations=2, partitioned=True,
verbosity=0
)
# TODO assert correctness
def test_mirror_rb_experiment(self):
self.skipTest("RB analysis is known to be broken. Skip tests until it gets fixed.")
lengths = [0, 4, 8]
circuits_per_length = 10
exp = sample.mirror_rb_experiment(
self.pspec_inv, lengths, circuits_per_length,
subsetQs=['Q1', 'Q2', 'Q3'], sampler='Qelimination',
samplerargs=[], localclifford=True, paulirandomize=True
)
# TODO assert correctness
exp = sample.mirror_rb_experiment(
self.pspec_inv, lengths, circuits_per_length,
subsetQs=['Q1', 'Q2', 'Q3'], sampler='Qelimination',
samplerargs=[], localclifford=True, paulirandomize=False
)
# TODO assert correctness
exp = sample.mirror_rb_experiment(
self.pspec_inv, lengths, circuits_per_length,
subsetQs=['Q1', 'Q2', 'Q3'], sampler='Qelimination',
samplerargs=[], localclifford=False, paulirandomize=False
)
# TODO assert correctness
exp = sample.mirror_rb_experiment(
self.pspec_inv, lengths, circuits_per_length,
subsetQs=['Q1', 'Q2', 'Q3'], sampler='Qelimination',
samplerargs=[], localclifford=False, paulirandomize=True
)
# TODO assert correctness