g{NdZddlmZddlmZddlmZddlmZddl m Z d d Z d S)zPass manager for optimization level 2, providing medium optimization. Level 2 pass manager: medium optimization by noise adaptive qubit mapping and gate cancellation using commutativity rules. ) annotations)PassManagerConfig)StagedPassManager)common)PassManagerStagePluginManagerpass_manager_configrreturnrc t}|j}|j}|j}|jpd}|jpd}|jpd}|jpd}|jpd} |j pd} |j } | d||d} |s|r| d||d} | }nd} d}| d ||d}|r|j r| .| d rtj| |d }ntjd }| d| |d}| d| |d}tj|||| | || }| d||d}t#||| |||||S)aLevel 2 pass manager: medium optimization by initial layout selection and gate cancellation using commutativity rules. This pass manager applies the user-given initial layout. If none is given, a search for a perfect layout (i.e. one that satisfies all 2-qubit interactions) is conducted. If no such layout is found, qubits are laid out on the most densely connected subset which also exhibits the best gate fidelities. The pass manager then transforms the circuit to match the coupling constraints. It is then unrolled to the basis, and any flipped cx directions are fixed. Finally, optimizations in the form of commutative gate cancellation and redundant reset removal are performed. Args: pass_manager_config: configuration of the pass manager. Returns: a level 2 pass manager. Raises: TranspilerError: if the passmanager config is invalid. defaultsabre translatorrouting)optimization_levellayoutN translationT)strict_directionF)remove_reset_in_zero optimization scheduling) layout_methodrouting_methodtranslation_methodoptimization_methodscheduling_method basis_gatestargetinit)pre_initrrrrpre_optimizationrr)rr coupling_mapinitial_layout init_methodrrrrrrget_passmanager_stage is_symmetricget_non_global_operation_namesrgenerate_pre_op_passmanager#generate_control_flow_options_checkr)rplugin_managerrr!r"r#rrrrrr routing_pmrrrr rschedrrs b/granary/edev/quantum/lib/python3.11/site-packages/qiskit/transpiler/preset_passmanagers/level2.pylevel_2_pass_managerr-sS.344N%1K&3L(7N%1>YK'5BM(7B7N,?O<-ANY+=J 'F 55>#616J ~55 m%8Q6   66)+>ST7K Z\6ZvDDVZD[[!= Lu   "=SXYYY!77+-@UV8L  0 0')r6s #"""""BBBBBB;;;;;;888888 \\\\\\r.