Process control implementing and visualizing method

Details Process control implementing and visualizing method Process control implementing and visualizing method

1996-11-25

1998-08-04

Tung, Kee M.

Computer graphics processing and selective visual display system

Computer graphic processing system

Plural graphics processors

39520054, 39520038, 395670, G06F 1516

Patent

active

057901350

ABSTRACT:
A process control method for a multiprocessing computer system is performed by executing a display process to display an initial state of general processes on a display terminal of the multiprocessing computer system. The general processes are then executed under the control of a control process. The display process transmits a state information inquiring message to the control process. A confirmation message indicating reception of the state information inquiring message is transmitted to the display process by the control process when the control process receives the state information inquiring message. A process state request message is transmitted to the general processes by the control process, so that only the general processes that are operating normally receive the process state request message. An answer message is transmitted to the control process by each of the general processes that are operating normally. The control process determines whether or not the answer message is received by the control process within a predetermined period of time. A corresponding one of the general processes is determined to be in a normal state when the control process receives the answer message from the corresponding general process within the predetermined period of time. The corresponding general process is determined to be in an abnormal state when the control process does not receive the answer message from the corresponding general process within the predetermined period of time. The control process transmits process state information representative of the states of the general processes to the display process. The general processes determined to be in the abnormal state are automatically terminated and then re-executed. A control state according to the state information is then displayed on the display terminal by the display process.

REFERENCES:
patent: 5109486 (1992-04-01), Seymour
patent: 5295244 (1994-03-01), Dev et al.
patent: 5432932 (1995-07-01), Chen et al.
patent: 5513321 (1996-04-01), Katori
patent: 5535335 (1996-07-01), Cox et al.
patent: 5542047 (1996-07-01), Armstrong

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