Process control implementing and visualizing method

• US 5,790,135 A
• Filed: 11/25/1996
• Issued: 08/04/1998
• Est. Priority Date: 11/24/1995
• Status: Expired due to Term

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Econtrols Incorporated
• Inventors: Kim, Soo-Hyun, Kim, Jong-Hoon, Hwang, Yeong-Gil
• Primary Examiner(s): Tung, Kee M.
• Application Number:
  US08/755,134
• Time in Patent Office: 617 Days
• Field of Search: 345/501, 345/502, 345/504, 395/200.53, 395/200.38, 395/200.54, 395/200.62, 395/200.64, 395/670, 395/672, 395/676
• US Class Current: 345/504
• CPC Class Codes: G06F 11/324 Display of status information

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.

Claims

1. A process control method for a multiprocessing computer system, comprising the steps of:

executing a display process to display an initial state of general processes on a display terminal of the multiprocessing computer system, and then executing the general processes under a control of a control process;

transmitting a state information inquiring message to the control process by the display process;

transmitting a process state request message to the general processes by the control process, so that only the general processes that are operating normally receive the process state request message;

transmitting an answer message to the control process by each of the general processes that are operating normally, and then determining whether or not the answer message is received by the control process within a predetermined period of time;

determining a corresponding one of the general processes 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, and determining the corresponding general process 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;

transmitting state information representative of the states of the general processes to the display process by the control process; and

displaying, via the display terminal, a control state according to the state information by the display process.

2. The process control method according to claim 1, further comprised of automatically terminating and then re-executing the general processes determined to be in the abnormal state.

3. The process control method according to claim 2, further comprised of the display terminal representing the initial state of the general processes using a first visual format.

4. The process control method according to claim 3, further comprised of the display terminal representing the normal state of the general processes using a second visual format.

5. The process control method according to claim 4, wherein the second visual format comprises a plurality of slanted lines.

6. The process control method according to claim 4, further comprised of the display terminal representing the abnormal state of the general processes using a third visual format.

7. The process control method according to claim 6, wherein the third visual format comprises a plurality of criss-crossed lines.

8. The process control method according to claim 1, further comprised of the display terminal representing the initial state of the general processes using a first visual format.

9. The process control method according to claim 8, further comprised of the display terminal representing the normal state of the general processes using a second visual format.

10. The process control method according to claim 9, wherein the second visual format comprises a plurality of slanted lines.

11. The process control method according to claim 9, further comprised of the display terminal representing the abnormal state of the general processes using a third visual format.

12. The process control method according to claim 11, wherein the third visual format comprises a plurality of criss-crossed lines.

13. A process control method for a multiprocessing computer system, comprising the steps of:

executing a display process to display an initial state of general processes on a display terminal of the multiprocessing computer system, and then executing the general processes under a control of a control process;

transmitting a state information inquiring message to the control process by the display process;

transmitting a confirmation message indicating reception of the state information inquiring message to the display process by the control process when the control process receives the state information inquiring message;

transmitting a process state request message to the general processes by the control process, so that only the general processes that are operating normally receive the process state request message;

transmitting an answer message to the control process by each of the general processes that are operating normally, and then determining whether or not the answer message is received by the control process within a predetermined period of time;

determining a corresponding one of the general processes 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, and determining the corresponding general process 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;

transmitting state information representative of the states of the general processes to the display process by the control process;

automatically terminating and then re-executing the general processes determined to be in the abnormal state; and

displaying, via the display terminal, a control state according to the state information by the display process.

14. The process control method according to claim 13, further comprised of the display terminal representing the initial state of the general processes using a first visual format.

15. The process control method according to claim 14, further comprised of the display terminal representing the normal state of the general processes using a second visual format.

16. The process control method according to claim 15, further comprised of the display terminal representing the abnormal state of the general processes using a third visual format.

17. The process control method according to claim 16, wherein the third visual format comprises a plurality of criss-crossed lines.

18. The process control method according to claim 15, wherein the second visual format comprises a plurality of slanted lines.

19. A process control method for a multiprocessing computer system, comprising the steps of:

executing a display process to display an initial state of general processes on a display terminal of the multiprocessing computer system, and then executing the general processes under a control of a control process;

transmitting a process state request message to the general processes by the control process, so that only the general processes that are operating normally receive the process state request message;

transmitting an answer message to the control process by each of the general processes that are operating normally, and then determining whether or not the answer message is received by the control process within a predetermined period of time;

determining a corresponding one of the general processes 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, and determining the corresponding general process 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;

transmitting state information representative of the states of the general processes to the display process by the control process; and

displaying, via the display terminal, a control state according to the state information by the display process.

20. The process control method according to claim 19, further comprised of automatically terminating and then re-executing the general processes determined to be in the abnormal state.