JPH05225157A - Automatic selection system for job execution system - Google Patents

Abstract

PURPOSE:To carry out the jobs in an optimum system and to attain the effective application of a rough-coupled computer system. CONSTITUTION:A system resources information control part 6 is provided together with a working peripheral device information analyzing part 3, and a desired executing system information analyzing part 2. An executing system deciding part 5 decides an executing system based on the working peripheral device information 17, the desired executing system information 16, and the system resources information. At the same time, an other system state monitoring part 7 monitors and reports the working state of each system. Then an information control information control part 8 registers, updates and recovers the job control information. Thus a job starting part 9 selects and starts the jobs that can be carried out in its own system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loosely coupled computer system, and more particularly to a job execution system automatic selection system for the system.

[0002]

2. Description of the Related Art In a conventional loosely-coupled system, the desired execution system information specified by the execution system information specification job control statement at the time of submitting a job is a system number or system resource indicating the computer system on which the job is to be executed. If it is desired to distribute the load for use, there is information indicating that it may be executed by any computer system. Conventionally, job control information including this type of desired execution system information is held in a secondary storage device that can be shared by a plurality of computer systems.

Based on this job control information, by selecting a job that can be executed by each computer system and starting it, execution of the job can be controlled among a plurality of computer systems. In this way, in the conventional loosely coupled system, system resources can be effectively used and the spooling sharing function can be provided. Furthermore, in the conventional loosely coupled system, the operating status and load status of each computer system are held in a secondary storage device that can be shared among a plurality of computer systems. Further, the system resource information of each computer system is held in the main storage device for each computer system and the secondary storage device that can be shared among a plurality of computer systems.

In the above-mentioned conventional method, the job activation unit of each computer system selects and activates a job that can be executed by the own computer system based on only the desired execution system information included in the job control information. .. Therefore,
The submitted job is a job that uses a peripheral device that is either not installed in the computer system or is in an unusable state, and is a job for the computer system that is set for the desired execution system information. An error occurs when the job is started in the computer system when the peripheral device to be used is not installed or is in the unusable state.

Next, the submitted job is a job that uses a peripheral device which is not incorporated in a certain computer system or is in an unusable state, and
It is assumed that the desired execution system information indicates that the job is subject to load balancing and can be executed by any computer system. In such a local computer system, when a peripheral system used for a job is not installed or is unavailable for a certain computer system that is determined to be able to execute the job. When the job is started in the computer system, an error occurs.

In order to avoid the above-mentioned situation, in each computer system which constitutes the loosely coupled computer system, the user knows the configuration information of the peripheral device and the state of each peripheral device, and then executes the execution system designation job control. The statement must specify the computer system in which the device is installed and ready for use.

Further, when a computer system is not operating or the load is heavy, a job set to be executed by the computer system will be executed for a long time until the state of the computer system is restored. I will be kept waiting.

[0008]

In view of the above points, the problem to be solved is system resource information of each computer system constituting the loosely coupled computer system, information on the peripheral device used by the job, and desired execution system information. Since it is not possible to automatically select a computer system that can be executed on the basis of and, by executing a job on a computer system in which the peripheral device to be used is not installed or is in an unusable state, This is the point where an error occurs.

[0009]

According to the present invention, in each computer system constituting a loosely coupled computer system, execution is performed based on system resource information, job use peripheral device information, and desired execution system information. The feature is that it is configured so that possible computer systems can be automatically selected.

That is, in the job execution system automatic selection method, the job control information including the execution system information designated by the execution system designation job control statement at the time of submitting a job is held in an extended storage device which can be shared among a plurality of computer systems. Based on this job control information, by selecting and starting a job that can be executed by each computer system, it is possible to control job execution among multiple computer systems and to make effective use of system resources. It has a spooling sharing function that can be used, and keeps the operating status and load status of each computer system on an expanded storage device that can be shared between multiple computer systems.
In addition, the system resource information of each computer system is held in the main storage device for each computer system and the extended storage device that can be shared among a plurality of computer systems.

In such a loosely coupled computer system,
The system resource information management unit provides the system resource information when the computer system is started up and operated.
Set in the system resource information area on the main memory and on the extended memory that can be shared between multiple computer systems.
The used peripheral device information analysis unit analyzes the peripheral devices used in the job. Subsequently, the execution system designation job control statement is analyzed by the desired execution system information analysis unit to obtain desired execution system information.

Based on the used peripheral device information obtained by the used peripheral device information analysis unit, the system resource information copied on the extended storage device, and the desired execution system information obtained by the desired execution system information analysis unit. First, the execution system determination unit determines an executable computer system to obtain execution system information. Further, the system status monitoring unit monitors the operating status and load status of each computer system held in the extended storage device, and notifies the job control information management unit of the status.

The job control information management unit registers the job control information including the execution system information obtained by the execution system determination unit, the used peripheral device information, and the desired execution system information in the extended storage device, and the job control information management unit stores the job control information. The input notification is sent to the job activation unit, and the execution system information included in the job control information registered in the extended storage device is updated / restored by the notification from the system state monitoring unit. Based on the job control information registered and managed by the job control information management unit in the expansion unit storage device, the job activation unit selects and activates a job that can be executed by the own computer system.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a job execution system automatic selection method of the present invention. Referring to FIG. 1, in the present exemplary embodiment, a job description analysis unit 1 and an execution system determination unit 5 are provided.
A system resource information management unit 6, a system status monitoring unit 7, a job control information management unit 8, a job starting unit 9,
It comprises a system resource information area 10, a system resource information table 11, a job control information table 12, a system status table 19, a job input section 20, and a job execution management section 21.

The job description analysis unit 1 is composed of a desired execution system information analysis unit 2, a used peripheral device information analysis unit 3, and another job control component analysis unit 4. The job control information table 12 is composed of each entry holding the job control information 13 of each job waiting to be started or being executed. The job control information 13 is the desired execution system information 14
And executable system information 15 and execution system information 1
6, used peripheral device information 17, job status 18
It is configured to include and.

FIG. 2 is a block diagram showing an embodiment of a loosely coupled computer system to which the job execution system automatic selection method according to the present invention is applied. As shown in FIG. 2, in this embodiment, the extended storage device 22 is shared by a plurality of computer systems to form a loosely coupled computer system, and a system resource information table 11, a job control information table 12,
The system status table 19 and the system status table 19 are held on an extended storage device 22 shared by a plurality of computer systems. Note that m (natural number) indicates the system number of the own computer system, and n (natural number) indicates the system number of any other computer system.

Next, the operation of this embodiment will be described with reference to the drawings. The system resource information management unit 6 stores the system resource management information of the own computer system in the system resource information area 10 in the main memory loosely coupled when the system is started up and when the peripheral loosely coupled state of the own computer system changes. And the area for the own computer system in the system resource information table 11 set on the extended storage device 22 shared by a plurality of computer systems.

When a job is submitted, the job input section 20
Is the job control statement that specifies the execution system, the definition statement in the file,
And a job description including a peripheral loosely coupled allocation request statement and the like, and using the desired execution system information analysis unit 2, the used peripheral device information analysis unit 3, and the other job control statement analysis unit 4, the job description analysis unit 1 The job description read by is analyzed.

The desired execution system information analysis unit 2 executes the execution system designation job control statement ($ NEED) in the job description.
Sentence) is analyzed. FIG. 3 shows the syntax of the execution system specified job control statement ($ NEED statement) and the meaning of the SYSTEM parameter. Where SYSTEM parameter value k
(Natural number) indicates the system number in the computer system (desired execution system) that executes the job.
The SYSTEM parameter value ANY indicates that the job may be executed by any computer system.

FIG. 4 is a flow chart showing the flow of processing of the desired execution system information analysis section 2 shown in FIG. As shown in FIG. 4, the desired execution system information analysis unit 2 displays the SYST
If the EM parameter is specified (processing step 40
See 1. ), A SYSTEM parameter value is obtained (see processing step 402), validity is checked (see processing step 403), and the desired execution system information 14 is set (see processing step 404).

The used peripheral device information analysis unit 3 analyzes the file definition statement and the device allocation request statement in the job description, obtains the used peripheral device information such as the device type of the peripheral device necessary for execution, and performs job control. It is set in the used peripheral device information 17 in the information 13. The other job control statement analysis unit 4 analyzes the job description excluding the execution system specified job control statement, the file definition statement, and the device allocation request statement.

When all the job descriptions are analyzed, the job description analysis unit 1 calls the execution system determination unit 5, and the execution system determination unit 5 sets the executable system information 15 and the execution system information 16 by the method described later. .. When the job control information 13 is prepared by setting the executable system information 15 and the execution system information 16, the job description analysis unit 1 sends a job input notification to the job control information management unit 8, and the job control information 13 give.

FIG. 5 is a flow chart showing the flow of processing of the execution system judging section 5 shown in FIG. The execution system determination unit 5 firstly, based on the used peripheral device information 17 and the system resource information in the system resource information table 11,
A computer system in which all the peripheral devices required to execute the job are configured and is in a usable state, that is, all computer systems capable of executing the job are searched, and the system number is set in the executable system information 15. Then, the number of computer systems that can be executed is determined (see processing step 502).

If there is only one executable system, the execution system determination unit 5 sets the system number of the retrieved computer system in the execution system information 16 (see processing step 503). If there are multiple executable systems,
The execution system determination unit 5 determines whether a specific system number is set in the desired system information 14 or ANY is set (see processing step 504). If the specific system number is set, it is determined whether or not the desired execution system information 14 is included in the executable system information 15 (see processing step 505). If it is included, the desired execution system information 14 is set in the execution system information 16 (see processing step 506), and if not included, the executable system information 1 is set.
All of No. 5 are set in the execution system information 16 (see processing step 507), and are subject to load balancing.

If ANY is set in the desired execution system information 14 in the processing step 504, the execution system determination section 5 sets all the executable system information 15 in the execution system information 16 (see processing step 507). ), It is the target of load balancing. On the other hand, processing step 5
If there is no executable system in 02, the job is deleted as an error (see processing step 508), and the user is notified to that effect (processing step 509).
reference. )

FIG. 6 is a flow chart showing the flow of processing of the system state monitoring unit 7 shown in FIG. As shown in FIG. 6, the system status monitoring unit 7 periodically obtains the operating status of each computer system from the system status table 19 (see processing step 601), and when the computer system n is not running ( If the computer system n is in an overloaded state (see processing step 603), a notification of the occurrence of an abnormality in the system n is sent to the job control information management unit 8 (see processing step 604). ). When the computer system n is operating and there is a margin in the load status, the system status monitoring unit 7 sends a notification of normal operation of the system n to the job control information management unit 8 (see processing step 605).

FIG. 7 is a flow chart showing the processing flow of the job control information management unit 8 shown in FIG. As shown in FIG. 7, when the job control information management unit 8 receives the notification (see processing step 701), it determines the type (see processing step 702). If it is a job input notification, the job control information 13 is registered in the job control information table 12 (see processing step 703), and a job registration notification is sent to the job activation unit 9 (see processing step 704). If it is the notification of the abnormality occurrence of the system n, the system number including the system number n is set in the execution system information 16 from the job control information table 12, and the executable system information 1
5 is set to a system number including the system number n, and all the job control information 13 for which the job status 18 = "wait for start" is searched (processing step 70).
See 5. ).

Next, the job control information management unit 8 sets the executable system information 15 excluding the system number n in the retrieved job control information 13 to the execution system information 16 (see processing step 706). The job control information 13 including the changed execution system information 16 is registered in the job control information table 12 (see processing step 703). A job registration notification is sent to the job activation unit 9 (see processing step 704). If it is the notification of the normal operation of the system n, a job in which the system number including the system number n is set in the executable system information 15 from the job control information table 12 and the job status 18 = “waiting for start” All the control information 13 is searched (see processing step 707).

Subsequently, the job control information management unit 8 calls the execution system determination unit 5 and resets the executable system information 15 and the execution system information 16 in the job control information 13 using its function. (Processing step 70
See 8. ). Next, reconfigurable executable system information 1
Job control information 1 including 5 and execution system information 16
3 and 3 are registered in the job control information table 12 (see processing step 703), and a job registration notice is sent to the job activation unit 9.
(See processing step 704).

8 and 9 are flow charts showing the flow of processing of the job starting unit 9 shown in FIG. FIG. 10 is an explanatory diagram showing an example of the contents of the job control information table 12 shown in FIG. When the job activation unit 9 receives the notification (see processing step 801) as shown in FIGS. 8, 9, and 10, the type is determined (processing step 8).
See 02. ). If it is a job registration notification, the load status of the computer system is obtained from the internal table. Therefore, there is a margin in the load status of the own computer system (processing step 8
See 03. ) Further, if there is a job that can be executed in the own computer system in the job control information table 12, that is, the system number (m) of the own computer system is included in the execution system information 16, and the job status 18 =
A job that is "waiting for startup" is registered. In such a case (see processing step 804), an appropriate job is selected from them (see processing step 805), this is activated, and a job activation notification is sent to the job execution management unit 21 (processing). See step 806.).

Subsequently, the job activation unit 9 sets the job status 18 of the activated job to "execution" (see processing step 807) and increments the multiplicity counter in the internal table by 1 (processing step 808). reference.).
In the example of FIG. 7, job b, job d, and job e are the selection targets for job activation. Here, it is assumed that the job b is selected and started. When a job end notification is received from the job execution management unit 21, the job control information 13 of the job is deleted from the job control information table 12 (see processing step 809), and the content of the multiplicity counter in the internal table is set to 1. Decrement only (processing step 8
See 10. ), And the same processing is performed thereafter (see processing steps 803 to 808).

[0032]

As described above, the present invention is based on the system resource information of each computer system that constitutes the loosely coupled computer system at the time of job analysis, the used peripheral device information of the job, and the desired execution system information. In addition, the following effects can be expected by automatically selecting the execution system. Even if the job is not installed in a computer system, or if a job that uses a peripheral device that is in an unusable state is submitted, that device is always installed and in a usable state. Can be executed with.

Further, the loosely coupled computer system can be effectively used even if the user does not know the system resource information of each computer system constituting the loosely coupled computer system. Further, even when a certain computer system is not operating or the load is heavy, by automatically changing the job control information of the job set to be executed by that computer system, another computer system that can be executed can be executed. Can be executed with.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a job execution system automatic selection method according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a loosely coupled computer system to which the job execution system automatic selection method according to the present invention is applied.

[Fig. 3] Syntax of execution system specified job control statement and S
It is an explanatory view showing the meaning of a YSTEM parameter.

FIG. 4 is a flowchart showing a processing flow of a desired execution system information analysis unit shown in FIG.

5 is a flowchart showing a processing flow of an execution system determination unit shown in FIG.

6 is a flowchart showing a processing flow of a system state monitoring unit shown in FIG.

FIG. 7 is a flowchart showing a processing flow of a job control information management unit shown in FIG.

8 is a flowchart showing a processing flow of a job activation unit shown in FIG.

9 is a flowchart showing a processing flow of a job activation unit shown in FIG.

FIG. 10 is an explanatory diagram showing an example of a job control information table.

[Explanation of symbols]

1 Job description analysis unit 2 Desired execution system information analysis unit 3 Peripheral device information analysis unit 4 Other job control statement analysis unit 5 Execution system determination unit 6 System resource information management unit 7 Other system status monitoring unit 8 Job control information management unit 9 Job activation part 10 System resource information area 11 System resource information table 12 Job control information table 13 Job control information 14 Desired execution system information 15 Executable system information 16 Execution system information 17 Used peripheral device information 18 Job status 19 System status table 20 Jobs Input unit 21 Job execution management unit 22 Extended storage device 401-404, 501-509, 601-605, 7
01-708, 801-810 processing steps

Claims (3)

[Claims] 1. An extended storage device that can be shared between a plurality of computer systems, and job control information including execution system information designated by a job control statement for an execution system when a job is submitted can be shared between the plurality of computer systems. Job execution control is enabled between the plurality of computer systems by selecting a job that is held in the extended storage device and that can be executed by each computer system based on the job control information and starting it. Has a spooling sharing function capable of measuring the effective use of system resources, and holds the operating status and load status of each computer system on the extended storage device that can be shared between the plurality of computer systems, and The system resource information of each computer system is stored in the main storage device of each computer system and in the plurality of computer systems. A system for automatically selecting a job execution system used in a loosely coupled computer system system that is held in the extended storage device that can be shared between systems. 2. The system resource information is set in the system resource information area on the main storage device and on the extended storage device that can be shared among the plurality of computer systems when the computer system is started up and operated. System resource information management unit, a peripheral device information analysis unit for analyzing peripheral devices used in a job, a desired execution system information analysis unit that analyzes the execution system specified job control statement, and the use peripherals. Execution is possible based on the use peripheral device information obtained by the device information analysis unit, system resource information set on the expansion storage device, and the desired execution system information obtained by the desired execution system information analysis unit. An execution system determination unit for determining a computer system to obtain execution system information, and a storage unit stored in the expansion storage device. Each computer and system state monitor for operational status and load status of the system to monitor notifies the job control information managing unit, the execution system information obtained by the execution system determination unit has,
While registering the job control information including the used peripheral device information and the desired execution system information on the extended storage device and sending a job input notification to the job starting unit,
The job control information management unit for updating / restoring the execution system information included in the job control information registered in the extended storage device according to the notification from the system state monitoring unit, and the extended storage device by the job control information management unit 2. The job execution system automatic selection method according to claim 1, further comprising: a job starting unit for selecting and starting a job executable in the local computer system based on the job control information registered and managed above. .. 3. The operations of the desired execution system information analysis unit, the execution system determination unit, the system information monitoring unit, the job control information management unit, and the job activation unit each include a plurality of processing steps. Job execution system automatic selection method described.