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    • 1. 发明授权
    • Task scheduling method in a multiprocessor system where task selection
is determined by processor identification and evaluation information
    • 多处理器系统中的任务调度方法,其中任务选择由处理器识别和评估信息确定
    • US5349656A
    • 1994-09-20
    • US797912
    • 1991-11-26
    • Seiji KanekoToshiyuki KinoshitaAkio YamamotoYasuhisa Tamura
    • Seiji KanekoToshiyuki KinoshitaAkio YamamotoYasuhisa Tamura
    • G06F15/16G06F9/46G06F9/48G06F9/50G06F15/177G06F9/445
    • G06F9/4881
    • A task scheduling method for a multiprocessor in a computer system having a main storage unit and a plurality of instruction processors each having a buffer storage unit, the buffer storage unit having a copy of a part of the main storage unit and deleting a part of the copy when reading a main storage unit area not stored in the buffer storage unit. The task scheduling method is accomplished by providing each task control block of a task control block queue with an area for storing processor identification of an instruction processor which executes a task and an area for storing evaluation information for evaluating a copied data amount for the task, remaining in the buffer storage unit of the instruction processor executing the task; causing the instruction processor to register the processor identification and evaluation information in the task control block when execution of the task is stopped; and when selecting a task to be executed by a subject instruction processor from a plurality of tasks to be executed in the computer system, causing the subject instruction processor to sequentially read task control blocks in the task control block queue to check each task in accordance with the processor identification and evaluation information, and if a checked result shows that the copied data amount corresponding to a checked task and remaining in the buffer storage unit of the instruction processor is greater than a predetermined amount, causing the subject instruction processor not to select the checked task and allowing another instruction processor to select the checked task.
    • 一种具有主存储单元和多个指令处理器的计算机系统中的多处理器的任务调度方法,每个具有缓冲存储单元,所述缓冲存储单元具有所述主存储单元的一部分的副本, 当读取未存储在缓冲存储单元中的主存储单元区域时复制。 任务调度方法是通过为任务控制块队列的每个任务控制块提供用于存储执行任务的指令处理器的处理器标识的区域和用于存储用于评估该任务的复制数据量的评估信息的区域, 剩余在执行任务的指令处理器的缓冲存储单元中; 使指令处理器在执行任务停止时将处理器识别和评估信息注册到任务控制块中; 并且当从计算机系统中要执行的多个任务中选择要由主体指令处理器执行的任务时,使得所述主题指令处理器顺序地读取任务控制块队列中的任务控制块,以根据 处理器识别和评估信息,并且如果检查结果示出与检查任务相对应并且保留在指令处理器的缓冲存储单元中的复制数据量大于预定量,则使得对象指令处理器不选择 检查任务并允许另一个指令处理器选择被检查的任务。