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Fix PassManagerConfig.from_backend with BackendV1 and no CouplingMap #10172

Merged
merged 3 commits into from
May 30, 2023
Merged

Fix PassManagerConfig.from_backend with BackendV1 and no CouplingMap #10172

merged 3 commits into from
May 30, 2023
+14 −2

Commits on May 26, 2023

  1. Fix PassManagerConfig.from_backend with BackendV1 and no CouplingMap 

    This commit fixes an issue in the PassManagerConfig.from_backend
constructor method when using BackendV1 based simulator backends. The
pass was incorrectly handling the case when the backend configuration
didn't have a coupling map defined and incorrectly creating a coupling
map with 0 qubits instead of using None to indicate the lack of
connectivity. This has been fixed so the coupling map creation is
skipped if there is no coupling map attribute in the backend's
configuration.

Fixes Qiskit#10171
    @mtreinish
    mtreinish committed May 26, 2023
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  2. Fix tests

    @mtreinish
    mtreinish committed May 26, 2023
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  3. Merge branch 'main' into fix-pm-config-from-backend

    @mtreinish
    mtreinish authored May 26, 2023
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