bench_qubo

Contains core QPU-interaction code.

Implements the abstract interface bench_qubo.QUBOSolver, and the related “QPU solver classes” bench_qubo.QUBOSolverDwave and bench_qubo.QUBOSolverIBM, along with technical data preprocessing and access code in bench_qubo.DataBaseQUBO. Most notably, each device-specific class implements _run method that is used to submit a job to an actual device.

Relies on abstact descriptions from bench.DataBase and Solver.

Classes

DataBaseQUBO(directory[, file_ext, ...])	Implements QUBO instance storage.
QUBOSolver(name, db)	Describes an abstract QPU solver interface.
QUBOSolverDwave(db, token)	Implements D-Wave specific solver code.
QUBOSolverIBM(db)	Implements IBM-specific solver code.

class bench_qubo.DataBaseQUBO(directory, file_ext='.json', filter_fun=None, sort_fun=None, directory_embeddings=None)

Implements QUBO instance storage.

_preprocess_qubo_data(Q, P, a, b)

get_qubo_data(instance_id, a, b)

get_embedding_data(instance_id, object_hook=None)

class bench_qubo.QUBOSolver(name, db)

Describes an abstract QPU solver interface.

abstract _run(instance_id, *args)

get_data(instance_id, a, b)

get_embedding_data(instance_id, object_hook=None)

class bench_qubo.QUBOSolverDwave(db, token)

Implements D-Wave specific solver code.

_load_embedding(instance_id)

Loads precomputed D-Wave embeddings from a file.

_calculate_embedding(Q_dict, target_edgelist)

Computes D-Wave embedding locally (and tracks the respective time for that).

_run(instance_id, num_reads, a, b)

class bench_qubo.QUBOSolverIBM(db)

Implements IBM-specific solver code.

_run_qpu_estimator(session, estimator_options, optimizer_name, optimizer_kwargs, optimizer_obj, optimizer_obj_kwargs, cost_func, ansatz, qubitOp, x0)

_run_qpu_sampler(session, sampler_options, ansatz, res)

_run(instance_id, optimizer_kwargs, optimizer_name, sampler_optimization_level, sampler_resilience_level, estimator_optimization_level, estimator_resilience_level, reps, sampler_shots, estimator_shots, backend_name, service_channel, service_instance, max_time, recover_on_exception, a, b)