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Fix performance regression in CSPLayout pass #5514

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Merged
kdk merged 1 commit into from
Dec 11, 2020
Merged

Fix performance regression in CSPLayout pass #5514

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2 changes: 1 addition & 1 deletion qiskit/transpiler/passes/layout/csp_layout.py
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,7 @@ def run(self, dag):
for gate in dag.two_qubit_ops():
cxs.add((qubits.index(gate.qargs[0]),
qubits.index(gate.qargs[1])))
edges = self.coupling_map.get_edges()
edges = set(self.coupling_map.get_edges())

if self.time_limit is None and self.call_limit is None:
solver = RecursiveBacktrackingSolver()
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