def test_http_compilation_failure(compiler):
device_name = "test_device"
mock_url = "http://mock-qpu-compiler"
config = PyquilConfig(TEST_CONFIG_PATHS)
session = get_session(config=config)
mock_adapter = requests_mock.Adapter()
session.mount("http://", mock_adapter)
headers = {
# access token from ./data/user_auth_token_valid.json.
"Authorization": "Bearer secret"
}
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/get_version_info",
status_code=200,
json={},
headers=headers,
)
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/native_quilt_to_binary",
status_code=500,
json={"message": "test compilation failed"},
headers=headers,
)
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/get_quilt_calibrations",
status_code=200,
json=CALIBRATIONS_RESPONSE,
headers=headers,
)
device = Device(name="not_actually_device_name",
raw={
"device_name": device_name,
"isa": DUMMY_ISA_DICT
})
compiler = QPUCompiler(
quilc_endpoint=session.config.quilc_url,
qpu_compiler_endpoint=mock_url,
device=device,
session=session,
)
native_quil = compiler.quil_to_native_quil(simple_program())
try:
compiler.native_quil_to_executable(native_quil)
except UserMessageError as e:
assert "test compilation failed" in str(e)
def test_compile_with_quilt_calibrations(compiler):
device_name = "test_device"
mock_url = "http://mock-qpu-compiler"
config = PyquilConfig(TEST_CONFIG_PATHS)
session = get_session(config=config)
mock_adapter = requests_mock.Adapter()
session.mount("http://", mock_adapter)
headers = {
# access token from ./data/user_auth_token_valid.json.
"Authorization": "Bearer secret"
}
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/get_version_info",
status_code=200,
json={},
headers=headers,
)
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/native_quilt_to_binary",
status_code=200,
json=SIMPLE_RESPONSE,
headers=headers,
)
device = Device(name="not_actually_device_name",
raw={
"device_name": device_name,
"isa": DUMMY_ISA_DICT
})
compiler = QPUCompiler(
quilc_endpoint=session.config.quilc_url,
qpu_compiler_endpoint=mock_url,
device=device,
session=session,
)
program = simple_program()
q = FormalArgument("q")
defn = DefCalibration(
"H", [], [q],
[RZ(math.pi / 2, q),
RX(math.pi / 2, q),
RZ(math.pi / 2, q)])
cals = [defn]
program._calibrations = cals
# this should more or less pass through
compilation_result = compiler.quil_to_native_quil(program, protoquil=True)
assert compilation_result.calibrations == cals
assert program.calibrations == cals
assert compilation_result == program
def test_http_compilation(compiler):
device_name = "test_device"
mock_url = "http://mock-qpu-compiler"
config = PyquilConfig(TEST_CONFIG_PATHS)
session = get_session(config=config)
mock_adapter = requests_mock.Adapter()
session.mount("http://", mock_adapter)
headers = {
# access token from ./data/user_auth_token_valid.json.
"Authorization": "Bearer secret"
}
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/get_version_info",
status_code=200,
json={},
headers=headers,
)
mock_adapter.register_uri(
"POST",
f"{mock_url}/devices/{device_name}/native_quil_to_binary",
status_code=200,
json=SIMPLE_RESPONSE,
headers=headers,
)
device = Device(
name="not_actually_device_name", raw={"device_name": device_name, "isa": DUMMY_ISA_DICT}
)
compiler = QPUCompiler(
quilc_endpoint=session.config.quilc_url,
qpu_compiler_endpoint=mock_url,
device=device,
session=session,
)
compilation_result = compiler.native_quil_to_executable(
compiler.quil_to_native_quil(simple_program())
)
assert isinstance(compilation_result, BinaryExecutableResponse)
assert compilation_result.program == SIMPLE_RESPONSE["program"]
def test_invalid_protocol():
device_name = "test_device"
mock_url = "not-http-or-tcp://mock-qpu-compiler"
config = PyquilConfig(TEST_CONFIG_PATHS)
session = get_session(config=config)
mock_adapter = requests_mock.Adapter()
session.mount("", mock_adapter)
device = Device(
name="not_actually_device_name", raw={"device_name": device_name, "isa": DUMMY_ISA_DICT}
)
with pytest.raises(UserMessageError):
QPUCompiler(
quilc_endpoint=session.config.quilc_url,
qpu_compiler_endpoint=mock_url,
device=device,
session=session,
)
def get_qc(name: str,
*,
as_qvm: bool = None,
noisy: bool = None,
connection: ForestConnection = None) -> QuantumComputer:
"""
Get a quantum computer.
A quantum computer is an object of type :py:class:`QuantumComputer` and can be backed
either by a QVM simulator ("Quantum/Quil Virtual Machine") or a physical Rigetti QPU ("Quantum
Processing Unit") made of superconducting qubits.
You can choose the quantum computer to target through a combination of its name and optional
flags. There are multiple ways to get the same quantum computer. The following are equivalent::
>>> qc = get_qc("Aspen-0-12Q-A-noisy-qvm")
>>> qc = get_qc("Aspen-0-12Q-A", as_qvm=True, noisy=True)
and will construct a simulator of the 8q-agave chip with a noise model based on device
characteristics. We also provide a means for constructing generic quantum simulators that
are not related to a given piece of Rigetti hardware::
>>> qc = get_qc("9q-square-qvm")
>>> qc = get_qc("9q-square", as_qvm=True)
Finally, you can get request a QVM with "no" topology of a given number of qubits
(technically, it's a fully connected graph among the given number of qubits) with::
>>> qc = get_qc("5q-qvm") # or "6q-qvm", or "34q-qvm", ...
Redundant flags are acceptable, but conflicting flags will raise an exception::
>>> qc = get_qc("9q-square-qvm") # qc is fully specified by its name
>>> qc = get_qc("9q-square-qvm", as_qvm=True) # redundant, but ok
>>> qc = get_qc("9q-square-qvm", as_qvm=False) # Error!
Use :py:func:`list_quantum_computers` to retrieve a list of known qc names.
This method is provided as a convenience to quickly construct and use QVM's and QPU's.
Power users may wish to have more control over the specification of a quantum computer
(e.g. custom noise models, bespoke topologies, etc.). This is possible by constructing
a :py:class:`QuantumComputer` object by hand. Please refer to the documentation on
:py:class:`QuantumComputer` for more information.
:param name: The name of the desired quantum computer. This should correspond to a name
returned by :py:func:`list_quantum_computers`. Names ending in "-qvm" will return
a QVM. Names ending in "-noisy-qvm" will return a QVM with a noise model. Otherwise,
we will return a QPU with the given name.
:param as_qvm: An optional flag to force construction of a QVM (instead of a QPU). If
specified and set to ``True``, a QVM-backed quantum computer will be returned regardless
of the name's suffix
:param noisy: An optional flag to force inclusion of a noise model. If
specified and set to ``True``, a quantum computer with a noise model will be returned
regardless of the name's suffix. The noise model for QVM's based on a real QPU
is an empirically parameterized model based on real device noise characteristics.
The generic QVM noise model is simple T1 and T2 noise plus readout error. See
:py:func:`decoherance_noise_with_asymmetric_ro`.
:param connection: An optional :py:class:ForestConnection` object. If not specified,
the default values for URL endpoints, ping time, and status time will be used. Your
user id and API key will be read from ~/.pyquil_config. If you deign to change any
of these parameters, pass your own :py:class:`ForestConnection` object.
:return:
"""
if connection is None:
connection = ForestConnection()
full_name = name
name, as_qvm, noisy = _parse_name(name, as_qvm, noisy)
ma = re.fullmatch(r'(\d+)q', name)
if ma is not None:
n_qubits = int(ma.group(1))
if not as_qvm:
raise ValueError("Please name a valid device or run as a QVM")
return _get_unrestricted_qvm(connection=connection,
noisy=noisy,
n_qubits=n_qubits)
if name == '9q-generic' or name == '9q-square':
if name == '9q-generic':
warnings.warn("Please prefer '9q-square' instead of '9q-generic'",
DeprecationWarning)
if not as_qvm:
raise ValueError(
"The device '9q-square' is only available as a QVM")
return _get_9q_square_qvm(connection=connection, noisy=noisy)
device = get_lattice(name)
if not as_qvm:
if noisy is not None and noisy:
warnings.warn(
"You have specified `noisy=True`, but you're getting a QPU. This flag "
"is meant for controlling noise models on QVMs.")
return QuantumComputer(name=full_name,
qam=QPU(endpoint=pyquil_config.qpu_url,
user=pyquil_config.user_id),
device=device,
compiler=QPUCompiler(
endpoint=pyquil_config.compiler_url,
device=device))
if noisy:
noise_model = device.noise_model
else:
noise_model = None
return QuantumComputer(name=full_name,
qam=QVM(connection=connection,
noise_model=noise_model),
device=device,
compiler=_get_qvm_compiler_based_on_endpoint(
device=device,
endpoint=connection.compiler_endpoint))
def get_qc(name: str,
*,
as_qvm: bool = None,
noisy: bool = None,
connection: ForestConnection = None) -> QuantumComputer:
"""
Get a quantum computer.
A quantum computer is an object of type :py:class:`QuantumComputer` and can be backed
either by a QVM simulator ("Quantum/Quil Virtual Machine") or a physical Rigetti QPU ("Quantum
Processing Unit") made of superconducting qubits.
You can choose the quantum computer to target through a combination of its name and optional
flags. There are multiple ways to get the same quantum computer. The following are equivalent::
>>> qc = get_qc("Aspen-1-16Q-A-noisy-qvm")
>>> qc = get_qc("Aspen-1-16Q-A", as_qvm=True, noisy=True)
and will construct a simulator of an Aspen-1 lattice with a noise model based on device
characteristics. We also provide a means for constructing generic quantum simulators that
are not related to a given piece of Rigetti hardware::
>>> qc = get_qc("9q-square-qvm")
>>> qc = get_qc("9q-square", as_qvm=True)
Finally, you can get request a QVM with "no" topology of a given number of qubits
(technically, it's a fully connected graph among the given number of qubits) with::
>>> qc = get_qc("5q-qvm") # or "6q-qvm", or "34q-qvm", ...
These less-realistic, fully-connected QVMs will also be more lenient on what types of programs
they will ``run``. Specifically, you do not need to do any compilation. For the other, realistic
QVMs you must use :py:func:`qc.compile` or :py:func:`qc.compiler.native_quil_to_executable`
prior to :py:func:`qc.run`.
The Rigetti QVM must be downloaded from https://www.rigetti.com/forest and run as a server
alongside your python program. To use pyQuil's built-in QVM, replace all ``"-qvm"`` suffixes
with ``"-pyqvm"``::
>>> qc = get_qc("5q-pyqvm")
Redundant flags are acceptable, but conflicting flags will raise an exception::
>>> qc = get_qc("9q-square-qvm") # qc is fully specified by its name
>>> qc = get_qc("9q-square-qvm", as_qvm=True) # redundant, but ok
>>> qc = get_qc("9q-square-qvm", as_qvm=False) # Error!
Use :py:func:`list_quantum_computers` to retrieve a list of known qc names.
This method is provided as a convenience to quickly construct and use QVM's and QPU's.
Power users may wish to have more control over the specification of a quantum computer
(e.g. custom noise models, bespoke topologies, etc.). This is possible by constructing
a :py:class:`QuantumComputer` object by hand. Please refer to the documentation on
:py:class:`QuantumComputer` for more information.
:param name: The name of the desired quantum computer. This should correspond to a name
returned by :py:func:`list_quantum_computers`. Names ending in "-qvm" will return
a QVM. Names ending in "-pyqvm" will return a :py:class:`PyQVM`. Names ending in
"-noisy-qvm" will return a QVM with a noise model. Otherwise, we will return a QPU with
the given name.
:param as_qvm: An optional flag to force construction of a QVM (instead of a QPU). If
specified and set to ``True``, a QVM-backed quantum computer will be returned regardless
of the name's suffix
:param noisy: An optional flag to force inclusion of a noise model. If
specified and set to ``True``, a quantum computer with a noise model will be returned
regardless of the name's suffix. The noise model for QVMs based on a real QPU
is an empirically parameterized model based on real device noise characteristics.
The generic QVM noise model is simple T1 and T2 noise plus readout error. See
:py:func:`~pyquil.noise.decoherence_noise_with_asymmetric_ro`.
:param connection: An optional :py:class:`ForestConnection` object. If not specified,
the default values for URL endpoints will be used. If you deign to change any
of these parameters, pass your own :py:class:`ForestConnection` object.
:return: A pre-configured QuantumComputer
"""
# 1. Parse name, check for redundant options, canonicalize names.
prefix, qvm_type, noisy = _parse_name(name, as_qvm, noisy)
del as_qvm # do not use after _parse_name
name = _canonicalize_name(prefix, qvm_type, noisy)
# 2. Check for unrestricted {n}q-qvm
ma = re.fullmatch(r'(\d+)q', prefix)
if ma is not None:
n_qubits = int(ma.group(1))
if qvm_type is None:
raise ValueError("Please name a valid device or run as a QVM")
return _get_unrestricted_qvm(name=name,
connection=connection,
noisy=noisy,
n_qubits=n_qubits,
qvm_type=qvm_type)
# 3. Check for "9q-square" qvm
if prefix == '9q-generic' or prefix == '9q-square':
if prefix == '9q-generic':
warnings.warn("Please prefer '9q-square' instead of '9q-generic'",
DeprecationWarning)
if qvm_type is None:
raise ValueError(
"The device '9q-square' is only available as a QVM")
return _get_9q_square_qvm(name=name,
connection=connection,
noisy=noisy,
qvm_type=qvm_type)
# 4. Not a special case, query the web for information about this device.
device = get_lattice(prefix)
if qvm_type is not None:
# 4.1 QVM based on a real device.
return _get_qvm_based_on_real_device(name=name,
device=device,
noisy=noisy,
connection=connection,
qvm_type=qvm_type)
else:
# 4.2 A real device
if noisy is not None and noisy:
warnings.warn(
"You have specified `noisy=True`, but you're getting a QPU. This flag "
"is meant for controlling noise models on QVMs.")
return QuantumComputer(
name=name,
qam=QPU(endpoint=pyquil_config.qpu_url,
user=pyquil_config.user_id),
device=device,
compiler=QPUCompiler(
quilc_endpoint=pyquil_config.quilc_url,
qpu_compiler_endpoint=pyquil_config.qpu_compiler_url,
device=device,
name=prefix))