| CmdLineFwk() | PipelineTask framework which executes tasks from command line. | 
| ExecutionGraphFixup | Interface for classes which update quantum graphs before execution. | 
| MPGraphExecutor(numProc, timeout, …[, …]) | Implementation of QuantumGraphExecutor using same-host multiprocess execution of Quanta. | 
| MPGraphExecutorError | Exception class for errors raised by MPGraphExecutor. | 
| MPTimeoutError | Exception raised when task execution times out. | 
| PreExecInit(butler, taskFactory[, …]) | Initialization of registry for QuantumGraph execution. | 
| QuantumExecutor | Class which abstracts execution of a single Quantum. | 
| QuantumGraphExecutor | Class which abstracts QuantumGraph execution. | 
| SimplePipelineExecutor(quantum_graph, butler) | A simple, high-level executor for pipelines. | 
| SingleQuantumExecutor(taskFactory[, …]) | Executor class which runs one Quantum at a time. | 
| TaskFactory | Class instantiating PipelineTasks. |