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1. 发明授权

US4823256A Reconfigurable dual processor system 失效
标题翻译：可重构双处理器系统
公开(公告)号：US4823256A
公开(公告)日：1989-04-18
申请号：US623481
申请日：1984-06-22
申请人： Thomas P. Bishop , Jonas Butvila , David J. Fitch , Robert C. Hansen , David A. Schmitt , Grover T. Surratt
发明人： Thomas P. Bishop , Jonas Butvila , David J. Fitch , Robert C. Hansen , David A. Schmitt , Grover T. Surratt
IPC分类号： G06F11/00 , G06F11/16 , G06F11/20 , G06F15/16 , G06F15/177
CPC分类号： G06F11/2043 , G06F11/1666 , G06F11/20 , G06F11/2035 , G06F11/2097 , G06F11/2007 , G06F2201/845
摘要： A is a duel processor system (100) with duplicated memory (114,124) has two modes (10,11) of operation: a converged mode (10) in which one of the two processors (101,102) is active and executing all system tasks while the other processor is inactive; and a diverged mode (11) in which both processors are active and independently executing different tasks. The system automatically changes modes in response to requests such as manual and program control and certain system fault conditions. In diverged mode, the system may be in either of two states of operation (1 and 2). In one state (1) one processor (101) is designated a primary processor, and in the other state (2) the other processor (102) is designated the primary processor. In the converged mode the system may be in either of four states of operaton (3-6). In two of these states (3,4) one processor is active while the other processor is standing by ready to take up execution of tasks from the point where the one processor stoped execution. In the other two of these states (5,6) one processor is active while the other processor is out of service and cannot take up task execution without being initialized. The system 100 makes transitions between the various states in response to requests. Except for transitions of an active processor to an out-of-service condition, the state transitions are transparent to tasks other than fault recovery programs and, upon a fault condition, the faulted program.
摘要翻译： A是具有重复存储器（114,124）的双重处理器系统（100），具有两种操作模式（10,11）：融合模式（10），其中两个处理器（101,102）中的一个处于活动状态并执行所有系统任务，另一个处理器不活动; 以及分散模式（11），其中两个处理器是活动的并且独立地执行不同的任务。系统会根据手动和程序控制以及某些系统故障情况等要求自动更改模式。在分流模式下，系统可能处于两种操作状态（1和2）中。在一个状态（1）中，一个处理器（101）被指定为主处理器，而在另一个状态（2）中，另一处理器（102）被指定为主处理器。在融合模式下，系统可以是四种操作状态（3-6）。在这些状态中的两个状态（3,4）中，一个处理器处于活动状态，而另一个处理器正在准备好从一个处理器执行的位置处理任务执行。在其他两个状态（5,6）中，一个处理器处于活动状态，而另一个处理器停止运行，并且不会在未初始化的情况下执行任务执行。系统100响应于请求而在各种状态之间进行转换。除了将活动处理器转换到服务不工作状态之外，状态转换对故障恢复程序以外的任务以及故障状态都是透明的。

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