Hardware scheduler/dispatcher for data processing system

摘要

A general-purpose, tightly-coupled multiprocessing system wherein processors share a common memory. A hardware-recognizable object (a process object) in memory stores access descriptors for controlling the type and extent of access to objects associated with a process, including one describing a buffered port. Another hardware-recognizable object (a processor object) associated with an executing process, stores access descriptors for controlling the type and extent of access to objects associated with a processor, including one describing a dispatching port. Task-dispatching functions are accomplished by hardware-controlled queuing mechanisms at the buffered ports and dispatching ports. These mechanisms allow different processes to communicate with each other and bind ready-to-run processes with available processors for execution.