ashsaki
commented
1 month ago Same issue with real backends.
Minimal example:
from qiskit.circuit import QuantumCircuit
from qiskit import transpile
from qiskit.transpiler.preset_passmanagers import generate_preset_pass_manager
from qiskit_ibm_runtime import QiskitRuntimeService
service = QiskitRuntimeService()
backend = service.backend("ibm_torino")
circuit = QuantumCircuit(2)
circuit.h(0)
circuit.x(1)
circuit.cx(0,1)
pm_sched = generate_preset_pass_manager(
backend=backend,
optimization_level=3,
scheduling_method="alap"
)
isa_circuit_sched_pm = pm_sched.run(circuit)Note that, this error does not occur if we use:
targetinstead ofbackendin the present pass manager.transpilefunction instead ofgenerate_preset_pass_manager
Software versions:
- Qiskit: $1.0.2$ and $1.1.0rc1$
- Qiskit IBM Runtime: $0.23.0$
- Python: $3.11$
- OS: Mac OS Sonoma
Error trace
14 pm_sched = generate_preset_pass_manager(
15 backend=backend,
16 optimization_level=3,
17 scheduling_method="alap"
18 )
19 isa_circuit_sched_pm = pm_sched.run(circuit)
File [python3.11/site-packages/qiskit/transpiler/preset_passmanagers/__init__.py:259](python3.11/site-packages/qiskit/transpiler/preset_passmanagers/__init__.py#line=258), in generate_preset_pass_manager(optimization_level, backend, target, basis_gates, inst_map, coupling_map, instruction_durations, backend_properties, timing_constraints, initial_layout, layout_method, routing_method, translation_method, scheduling_method, approximation_degree, seed_transpiler, unitary_synthesis_method, unitary_synthesis_plugin_config, hls_config, init_method, optimization_method, _skip_target)
257 pm = level_2_pass_manager(pm_config)
258 elif optimization_level == 3:
--> 259 pm = level_3_pass_manager(pm_config)
260 else:
261 raise ValueError(f"Invalid optimization level {optimization_level}")
File [python3.11/site-packages/qiskit/transpiler/preset_passmanagers/level3.py:106](python3.11/site-packages/qiskit/transpiler/preset_passmanagers/level3.py#line=105), in level_3_pass_manager(pass_manager_config)
103 else:
104 pre_optimization = common.generate_pre_op_passmanager(remove_reset_in_zero=False)
--> 106 sched = plugin_manager.get_passmanager_stage(
107 "scheduling", scheduling_method, pass_manager_config, optimization_level=3
108 )
110 return StagedPassManager(
111 pre_init=pre_init,
112 init=init,
(...)
118 scheduling=sched,
119 )
File [python3.11/site-packages/qiskit/transpiler/preset_passmanagers/plugin.py:255](python3.11/site-packages/qiskit/transpiler/preset_passmanagers/plugin.py#line=254), in PassManagerStagePluginManager.get_passmanager_stage(self, stage_name, plugin_name, pm_config, optimization_level)
251 return self._build_pm(
252 self.optimization_plugins, stage_name, plugin_name, pm_config, optimization_level
253 )
254 elif stage_name == "scheduling":
--> 255 return self._build_pm(
256 self.scheduling_plugins, stage_name, plugin_name, pm_config, optimization_level
257 )
258 else:
259 raise TranspilerError(f"Invalid stage name: {stage_name}")
File [python3.11/site-packages/qiskit/transpiler/preset_passmanagers/plugin.py:272](python3.11/site-packages/qiskit/transpiler/preset_passmanagers/plugin.py#line=271), in PassManagerStagePluginManager._build_pm(self, stage_obj, stage_name, plugin_name, pm_config, optimization_level)
270 raise TranspilerError(f"Invalid plugin name {plugin_name} for stage {stage_name}")
271 plugin_obj = stage_obj[plugin_name]
--> 272 return plugin_obj.obj.pass_manager(pm_config, optimization_level)
File [python3.11/site-packages/qiskit/transpiler/preset_passmanagers/builtin_plugins.py:623](python3.11/site-packages/qiskit/transpiler/preset_passmanagers/builtin_plugins.py#line=622), in AlapSchedulingPassManager.pass_manager(self, pass_manager_config, optimization_level)
620 inst_map = pass_manager_config.inst_map
621 target = pass_manager_config.target
--> 623 return common.generate_scheduling(
624 instruction_durations, scheduling_method, timing_constraints, inst_map, target
625 )
File [python3.11/site-packages/qiskit/transpiler/preset_passmanagers/common.py:573](python3.11/site-packages/qiskit/transpiler/preset_passmanagers/common.py#line=572), in generate_scheduling(instruction_durations, scheduling_method, timing_constraints, inst_map, target)
566 scheduling.append(ContainsInstruction("delay"))
567 scheduling.append(
568 ConditionalController(
569 TimeUnitConversion(instruction_durations, target=target), condition=_contains_delay
570 )
571 )
572 if (
--> 573 timing_constraints.granularity != 1
574 or timing_constraints.min_length != 1
575 or timing_constraints.acquire_alignment != 1
576 or timing_constraints.pulse_alignment != 1
577 ):
578 # Run alignment analysis regardless of scheduling.
580 def _require_alignment(property_set):
581 return property_set["reschedule_required"]
AttributeError: 'NoneType' object has no attribute 'granularity'
Environment
What is happening?
if add
scheduling_methodoption inside ofgenerate_preset_pass_managerwith FakebackendV2 of qiskit-ibm-runtim and Aersimulator ofqiskit-aer, granularity relate error comesbelow is whole error block:
there will be no error if we use this option inside of
transpile()function.How can we reproduce the issue?
pm = generate_preset_pass_manager(backend=fakeosaka, optimization_level=1, scheduling_method='alap')
from qiskit_aer import AerSimulator from qiskit_ibm_runtime import QiskitRuntimeService service = QiskitRuntimeService(channel="ibm_quantum")
sim = AerSimulator() backend_device = service.get_backend('ibm_osaka') noisy_backend = AerSimulator.from_backend(backend_device)
pm = generate_preset_pass_manager(backend=noisy_backend, optimization_level=1, scheduling_method='alap')