PassManagerConfig

class PassManagerConfig(initial_layout=None, basis_gates=None, inst_map=None, coupling_map=None, layout_method=None, routing_method=None, translation_method=None, scheduling_method=None, instruction_durations=None, backend_properties=None, approximation_degree=None, seed_transpiler=None, timing_constraints=None, unitary_synthesis_method='default', unitary_synthesis_plugin_config=None, target=None)

Bases: object

Pass Manager Configuration.

Initialize a PassManagerConfig object

Parameters

• initial_layout (Layout) – Initial position of virtual qubits on physical qubits.
• basis_gates (list) – List of basis gate names to unroll to.
• inst_map (InstructionScheduleMap) – Mapping object that maps gate to schedule.
• coupling_map (CouplingMap) – Directed graph represented a coupling map.
• layout_method (str) – the pass to use for choosing initial qubit placement.
• routing_method (str) – the pass to use for routing qubits on the architecture.
• translation_method (str) – the pass to use for translating gates to basis_gates.
• scheduling_method (str) – the pass to use for scheduling instructions.
• instruction_durations (InstructionDurations) – Dictionary of duration (in dt) for each instruction.
• backend_properties (BackendProperties) – Properties returned by a backend, including information on gate errors, readout errors, qubit coherence times, etc.
• approximation_degree (float) – heuristic dial used for circuit approximation (1.0=no approximation, 0.0=maximal approximation)
• seed_transpiler (int) – Sets random seed for the stochastic parts of the transpiler.
• timing_constraints (TimingConstraints) – Hardware time alignment restrictions.
• unitary_synthesis_method (str) – The string method to use for the UnitarySynthesis pass. Will search installed plugins for a valid method.
• target (Target) – The backend target

Methods

from_backend