mirror of https://github.com/Qiskit/qiskit.git
16 lines
751 B
YAML
16 lines
751 B
YAML
---
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features:
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Internal tweaks to the routing algorithm in :class:`.SabreSwap`, used in
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transpilation of non-dynamic circuits at all non-zero optimization levels,
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have sped up routing for very large circuits. As an example, the time to
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route a depth-5 :class:`.QuantumVolume` circuit for a 1081-qubit heavy-hex
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coupling map is approximately halved.
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upgrade:
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The result of transpilations for fixed seeds may have changed compared to
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previous versions of Qiskit Terra. This is because of internal tweaks to
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the routing algorithm used by :class:`.SabreSwap` and :class:`.SabreLayout`,
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which are the default routing and layout passes respectively, to make them
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significantly faster for large circuits.
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