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ALAPScheduleAnalysis
class ALAPScheduleAnalysis(durations)
Bases: qiskit.transpiler.passes.scheduling.scheduling.base_scheduler.BaseScheduler
ALAP Scheduling pass, which schedules the stop time of instructions as late as possible.
See the Scheduling Stage section in the qiskit.transpiler
module documentation for the detailed behavior of the control flow operation, i.e. c_if
.
Scheduler initializer.
Parameters
durations (InstructionDurations
) – Durations of instructions to be used in scheduling
Methods
name
ALAPScheduleAnalysis.name()
Return the name of the pass.
run
ALAPScheduleAnalysis.run(dag)
Run the ALAPSchedule pass on dag.
Parameters
dag (DAGCircuit) – DAG to schedule.
Returns
A scheduled DAG.
Return type
Raises
- TranspilerError – if the circuit is not mapped on physical qubits.
- TranspilerError – if conditional bit is added to non-supported instruction.
Attributes
CONDITIONAL_SUPPORTED
Default value: (<class 'qiskit.circuit.gate.Gate'>, <class 'qiskit.circuit.delay.Delay'>)
is_analysis_pass
Check if the pass is an analysis pass.
If the pass is an AnalysisPass, that means that the pass can analyze the DAG and write the results of that analysis in the property set. Modifications on the DAG are not allowed by this kind of pass.
is_transformation_pass
Check if the pass is a transformation pass.
If the pass is a TransformationPass, that means that the pass can manipulate the DAG, but cannot modify the property set (but it can be read).
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