| 摘要 |
PURPOSE:To realize an assured recovery of plural computers from a state of conflict in case these computers utilize the single resources in common to each other, by using a time monitor system for the control during a conflict and at the same time setting a random time interval for the monitor system. CONSTITUTION:Two layers of interruption generators 2/10 and 4/11 are connected to CPU1 and CPU3 respectively, and the working share can be set optionally for these generators by a program of the CPU. In cas a busy state is reported from a controller 8 when an interruption is given from the generator 4, the CPU3 performs a retrial with the interruption given from the generator 11. The timing of the generator 11 is random with no virtual synchronism with the timing of the generator 2. As a result, an idle state of a loop-shaped transmission line 7 is quickly detected by the CPU3 and with the interruption given from the generator 11 to assure a recovery from the state of conflict. |
