def thaw_promise(self, job_id, device: QuTechDevice):
"""
load job by job_id
"""
try:
return device.device.retrieve_job(job_id)
except ApiError as e:
print_stderr(str(e))
return None
def thaw_promise(self, job_id, device: IBMDevice):
"""
load job by job_id
"""
try:
return device.device.retrieve_job(job_id)
except QiskitError as e:
print_stderr(e)
return None
def job_alive(self, promise, meta: dict):
"""
check whether we consider the job behind the promise alive on an QuTech backend; however we should also check whether job_id is successful
since only that makes a call to the cloud backend
"""
try:
id = promise.job_id()
except ApiError as e:
message = str(e)
if "Please wait for those jobs to finish or cancel a job." in str(
e):
print_stderr(str(e))
return False
raise
# note that if this fails due to e.g. a TimeoutError
# this does not mean that the job is broken;
# it could e.g. be a network issue. We let that error propagate
status = promise.status()
print(
f"The job with QuTech ID {id} is reported to be in status: {status}"
)
if status in [JobStatus.QUEUED, JobStatus.RUNNING, JobStatus.DONE]:
return True
elif status in [JobStatus.ERROR, JobStatus.CANCELLED, "FAILURE"]:
return False
# check whether status has been like this before
if not "last-status" in meta or meta["last-status"]["status"] != status:
meta["last-status"] = {"status": status, "time": utc_timestamp()}
return True
# calculate time difference; if below threshold all is ok
age = time_elapsed(meta["last-status"]["time"])
if age <= self.MAX_JOB_AGE:
return True
# otherwise try to cancel old job
print(
f"The job with QuTech ID {id} seems stuck in status: {status} for more than {age}, trying to cancel it."
)
try:
promise.cancel()
del meta["last-status"]
except ApiError as e:
print_stderr(str(e))
finally:
return False
def execute(
self,
circuit: qiskit.QuantumCircuit,
num_shots=1024,
initial_layout=None,
optimization_level=3,
):
while optimization_level >= 0:
try:
experiment = qiskit.compiler.transpile(
circuit,
initial_layout=initial_layout,
optimization_level=optimization_level,
backend=self.device,
)
break
except qiskit.transpiler.exceptions.TranspilerError as e:
print_stderr("transpiler error. Lowering optimization level")
optimization_level -= 1
if optimization_level < 0:
raise e
print_hl(circuit, color="white")
print_hl(experiment, color="white")
qobj = qiskit.compiler.assemble(experiment,
shots=num_shots,
max_credits=15,
backend=self.device)
try:
return {
"result": self.device.run(qobj),
"transpiled_circuit": experiment
}
except QiskitError as e:
message = e.message.rstrip("\n .")
message = e.message.rstrip(".'")
if message.endswith("Error code: 3458"):
print_stderr("You don't have enough credits to run this job.")
return {
"result": ThinPromise(lambda: None),
"transpiled_circuit": None
}
raise
def execute(
self,
circuit: qiskit.QuantumCircuit,
num_shots=1024,
initial_layout=None,
optimization_level=3,
):
while optimization_level >= 0:
try:
experiment = qiskit.compiler.transpile(
circuit,
initial_layout=initial_layout,
optimization_level=optimization_level,
backend=self.device,
)
break
except qiskit.transpiler.exceptions.TranspilerError as e:
print_stderr("transpiler error. Lowering optimization level")
optimization_level -= 1
if optimization_level < 0:
raise e
print_hl(circuit, color="white")
print_hl(experiment, color="white")
qobj = qiskit.compiler.assemble(experiment,
shots=num_shots,
max_credits=15,
backend=self.device)
try:
return {
"result": self.device.run(qobj),
"transpiled_circuit": experiment
}
except ApiError as e:
if "Please wait for those jobs to finish or cancel a job." in str(
e):
print_stderr(str(e))
return {
"result": ThinPromise(lambda: None),
"transpiled_circuit": None
}
raise
def _run_and_measure(
self,
program: pq.Program,
num_shots: int,
measure_qubits: list,
optimize,
active_reset=False,
):
program = program.copy()
qubits = measure_qubits if measure_qubits is not None else program.get_qubits(
)
# actively reset qubits at start
if active_reset:
program = pq.Program(pq.gates.RESET()) + program
# add measurements everywhere
ro = program.declare("ro", "BIT", len(qubits))
for i, q in enumerate(qubits):
program.inst(pq.gates.MEASURE(q, ro[i]))
program.wrap_in_numshots_loop(shots=num_shots)
try:
executable = self.device.compile(program, optimize=optimize)
bitstring_array = self.device.run(executable=executable)
except Exception as e:
print_stderr(e) # we want to log, but not interrupt
return {
"result": ThinPromise(lambda: None),
"transpiled_circuit": None
}
print_hl(program, color="grey")
print_hl(executable.program, color="grey")
bitstring_dict = {}
for i, q in enumerate(qubits):
bitstring_dict[q] = bitstring_array[:, i]
return {
"result": ThinPromise(lambda: bitstring_dict),
"transpiled_circuit": executable.asdict(),
}
def score(args):
RUN_FOLDER = args.run_folder
# benchmark to score
BENCHMARK_ID = args.benchmark
jobmanager_bench, _, slug_bench = obtain_jobmanager(BENCHMARK_ID,
RUN_FOLDER,
recreate_device=False)
if not jobmanager_bench.done:
print_stderr("benchmark not done yet")
return
BENCHMARK = slug_bench["additional_stored_info"]["benchmark"]
# optional, a reference benchmark
REFERENCE_ID = args.reference
if REFERENCE_ID:
jobmanager_ref, _, slug_ref = obtain_jobmanager(REFERENCE_ID,
RUN_FOLDER,
recreate_device=False)
if not jobmanager_ref.done:
print_stderr("reference not done yet")
return
if slug_ref["additional_stored_info"]["benchmark"] != BENCHMARK:
print_stderr("benchmark and reference are not the same test")
return
jobmanager_bench.score(
jobmanager_bench.collate_results(),
jobmanager_ref.collate_results() if REFERENCE_ID else None,
)
jobmanager_bench.print_gate_statistics()
def job_alive(self, promise, meta: dict):
"""
check whether we consider the job behind the promise alive on an IBM backend; however we should also check whether job_id is successful
since only that makes a call to the cloud backend
"""
try:
id = promise.job_id()
except QiskitError as e:
message = e.message.rstrip("\n .")
if message.endswith("QUEUE_DISABLED"):
print_stderr("The queue for this device is disabled.")
return False
elif message.endswith("NOT_CREDITS_AVALIABLES"
) or message.endswith("Error code: 3458"):
print_stderr("You don't have enough credits to run this job.")
return False
raise
# note that if this fails due to e.g. a TimeoutError
# this does not mean that the job is broken;
# it could e.g. be a network issue. We let that error propagate
status = promise.status()
print(
f"The job with IBM ID {id} is reported to be in status: {status}")
if status in [JobStatus.QUEUED, JobStatus.RUNNING, JobStatus.DONE]:
return True
elif status in [JobStatus.ERROR, JobStatus.CANCELLED, "FAILURE"]:
return False
# check whether status has been like this before
if not "last-status" in meta or meta["last-status"]["status"] != status:
meta["last-status"] = {"status": status, "time": utc_timestamp()}
return True
# calculate time difference; if below threshold all is ok
age = time_elapsed(meta["last-status"]["time"])
if age <= self.MAX_JOB_AGE:
return True
# otherwise try to cancel old job
print(
f"The job with IBM ID {id} seems stuck in status: {status} for more than {age}, trying to cancel it."
)
try:
promise.cancel()
del meta["last-status"]
except QiskitError as e:
print_stderr(e)
finally:
return False