JPH0254338A - Automatic selection system for job execution system - Google Patents

Abstract

PURPOSE:To prevent the occurrence of errors and to reduce the load of a user by automatically selecting a computer system capable of execution of jobs based on the peripheral device control information and the desired executing system information. CONSTITUTION:A peripheral device control information copy means 6 copies the peripheral device control information 9 stored in a main storage device of a computer system to a secondary storage device that can be shared among plural computer systems. A job description analysis means 1 obtains the working peripheral device information 15 showing a peripheral device used for a job via a working peripheral device information analyzing part 3 and analyzes an execution system designating job control sentence via a desired execution system information analyzing part 2 to obtain the desired execution system information 13. An execution system deciding means 5 decides the practicable computer systems based on the information 15, 9 and 13 and obtains the execution system information 14. A job description information register means 7 registers the job description information 12 including the information 14 and 13 into the secondary storage device and sends the job input information to a job start means 8. Then the means 7 selects the practicable jobs to its own computer system and starts these jobs based on the information 12.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an automatic job execution system selection method, and in particular, the present invention relates to a method for automatically selecting a job execution system, and in particular, when a job is submitted, job description information including desired execution system information specified by an execution system specification job control statement is set. By storing jobs on a secondary storage device that can be shared between computer systems, and selecting and launching jobs that can be executed on each computer system based on job description information,
It has a spooling sharing function that enables job execution control between multiple computer systems and effective use of system resources, and stores the peripheral device management information of each computer system on the main memory for each computer system. This invention relates to an automatic job execution system selection method in a loosely coupled computer system.

[Conventional technology]

In the conventional spooling sharing function, the desired execution system information (the system number or system resource information indicating the computer system on which the job is to be executed) obtained based on the execution system specification job control statement in the job description submitted by the user. If you want to distribute the load for effective use, job description information including information indicating that the job can be executed on any computer system is held on a secondary storage device that can be shared among multiple computer systems. The job starting means of each computer system selects and starts a job that can be executed by its own computer system based on the job description information held on the secondary storage device.

[Problems to be Solved by the Invention] In the conventional spooling sharing function described above, only the desired execution system information obtained based on the execution system specification job control statement is included in the job description information. Since the job starting means of each computer system selects and starts a job that can be executed on its own computer system based on the job description information, the computer with the submitted job If the job uses a peripheral "JAK" that is not configured or unavailable in the system,
When the computer system whose system number is set as the computer system on which the job is to be executed in the desired execution system information of the job description information has no peripheral devices configured or available for use in the job, and A certain computer system selected the job because it determined that the job could be executed on its own computer system because the desired execution system information in the job description information indicated that the job could be executed on any computer system as a target for load balancing. There is a drawback that an error will occur if the job starting means starts a job when a peripheral device used in the job is not configured or is in an unusable state.

In addition, in order to avoid the above situation, the user should know the peripheral device management information of each computer system that makes up the loosely coupled computer system, and then specify the peripheral devices used in the job using the execution system specified job control statement. A disadvantage is that a computer system that is configured and ready for use must be specified.

In view of the above points, an object of the present invention is to automatically select a computer system capable of executing a job based on peripheral device management information and desired execution system information of each computer system. , provides an automatic job execution system selection method that reduces the burden on users by preventing errors caused by executing jobs on computer systems where peripheral devices are not configured or cannot be used. It's about doing.

[Means for solving problems]

The automatic job execution system selection method of the present invention retains job description information including desired execution system information specified by an execution system specification job control statement when a job is submitted on a secondary storage device that can be shared among multiple computer systems. By selecting and activating executable ships on each computer system based on the job description information of the lever, it is possible to control the execution of jobs between multiple computer systems and to make effective use of system resources. In a loosely coupled computer system that has a ring sharing function and holds peripheral device management information for each computer system on its main storage, the peripheral device management information held on the main storage of the computer system a peripheral device management information copying means for copying device management information onto a secondary storage device that can be shared among a plurality of computer systems; a used peripheral device information analysis unit that obtains used peripheral device information indicating a peripheral device used in a job; A desired execution system information analysis unit that analyzes the execution system specification job control statement to obtain desired execution system information, and the usage peripheral device information obtained by the usage peripheral device information analysis unit and the peripheral device management information copying means. an execution system that determines an executable computer system and obtains execution system information based on the peripheral device management information copied on the secondary storage device and the desired execution system information obtained by the desired execution system information analysis section; the job description information including the execution system information, the used peripheral device information, and the desired execution system information obtained by the execution system determination means;
job description information registration means for registering on the secondary storage device and sending a job input notification to the job starting means; and job starting means for selecting and starting jobs that can be executed by the system.

[Effect]

In the job execution system automatic selection method of the present invention, the peripheral device management information copying means is the i! of the computer system. Copying the peripheral device management information held on the device to a secondary storage device that can be shared among multiple computer systems, and obtaining peripheral device information indicating the peripheral device used in the job by the peripheral device information analysis unit in use; The desired execution system information analysis section analyzes the execution system specified job control statement to obtain the desired execution system information, and the execution system determination means obtains the used peripheral device information and peripheral device management information copying means obtained by the used peripheral device information analysis section. The computer system that can be executed is determined based on the peripheral device management information copied onto the secondary storage device and the desired execution system information obtained by the desired execution system information analysis unit, the execution system information is obtained, and the job is written. The information registration means registers job description information including execution system information, used peripheral device information, and desired execution system information obtained by the execution nostem determination means on the secondary storage device, and sends a job input notification to the job starting means. The job starting means selects and starts a job that can be executed by the own computer system based on the job description information registered on the secondary storage device by the job description information registration means.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

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

The job execution system automatic selection method of this embodiment includes a job description analysis means 1, an execution system determination means 5, a peripheral device management information copying means 6, a job description information registration means 7, a job starting means 8, and a peripheral device management information copying means 6. Device management information f! Area 9 and
It is composed of a peripheral device management information table 10, a job starting table 11, a job input means 17, and an execution management means 18.

The job description analysis means 1 includes a desired execution system information analysis section 2, a used peripheral device information analysis section 3, and a job description analysis section 4.

The job activation table 11 is composed of entries that hold job description information 12 for each job waiting to be activated and for each job in execution.

The job description information 12 includes desired execution system information 13,
It is configured to include execution system information 14, used peripheral device information 15, and job status 16.

FIG. 2 is a block diagram showing an example of the configuration of a loosely coupled computer system to which the automatic job execution system selection method of this embodiment is applied. A loosely coupled computer system shares a secondary storage device among a plurality of computer systems, and holds a peripheral device management information table 10 and a job activation table 11 on the secondary storage device. In addition, m (positive integer)
is the system number of the own computer system, and n (positive integer) is the system number of any other computer system.

Figure 3 shows the execution system specified job control statement ($NEED
FIG. 12 is a diagram showing the syntax of a sentence) and the meaning of system parameters. Here, the system parameter value k (positive integer) is
Indicates the system number of the computer system (desired execution system) that executes the job. Furthermore, the system parameter value ANY indicates that the job may be executed on any computer system.

Referring to FIG. 4, the process in the desired execution system information analysis unit 2 includes system parameter presence/absence determination step 2.
01, a system parameter value acquisition step 202, a system number or ANY presence/absence determination step 203, and a desired execution system information setting step 204.

Referring to FIG. 5, the processing in the execution system determining means 5 includes an executable computer system search step 501, an executable computer system number determination step 502, an executable system execution system information setting step 503, and a system number presence determination step 502. step 504, desired execution system executable determination step 505, desired execution system execution system information setting step 506, all executable system execution system information setting step 507, job deletion step 508, and user notification step 509
It consists of

Referring to FIG. 6, the processing in the job starting means 8 includes a notification acquisition step bot, a job manual notification determination step 802, a step 803 for determining the presence or absence of the load status of the own computer system, and a step 804 for determining the presence or absence of executable job registration. , an executable job selection step 805;
Selected job activation step 806, job status in execution setting step 807, multiplicity counter value 1 addition step 808, job end notification determination step 809, job description information deletion step 810, multiplicity counter value 1 subtraction step 811 It consists of

FIG. 7 is a diagram showing an example of the job activation table 11. This ``job startup table 11'' includes job name and desired execution system information 13 for each job. Execution system information 14. It consists of a plurality of entries, with job description information 12 consisting of job status 16 and the like being one entry.

Next, the operation of the automatic selection method 2 of the job execution system of this embodiment configured as described above will be explained.

The peripheral device management information copying means 6 copies a peripheral device management information area 9 on a main storage device (not shown) when starting up the computer system.
When the peripheral device management information of the own computer system is set in , and when the peripheral device management information of the own computer system in the peripheral device management information area 9 on the main memory is updated, the peripheral device on the main memory Each computer system copies the peripheral device management information of its own computer system in the management information area 9 to the area for its own computer system in the peripheral device management information table 10 on the secondary storage device shared by multiple computer systems. As the peripheral device management information copying means 6 performs the above-described operations, the peripheral device management information table 10 stores the current peripheral device management information of each computer system constituting the loosely coupled computer system.

When a job is submitted, the job input means 17 reads a job description including an execution system specification job control statement, a file definition statement, a device allocation request statement, etc., and the job description analysis means 1 analyzes the job description.

In the job description analysis unit 1, the desired execution system information analysis unit 2 analyzes the execution system specified job control statement (INEED statement) in the job description and determines whether there is a system parameter (step 201). If there are no system parameters, the desired execution system information analysis unit 2 ends the process.

If there are system parameters, the desired execution system information analysis unit 2 obtains the system parameter values (step 20
2). Next, the desired execution system information analysis unit 2 checks the validity by determining whether the system parameter value is k or ANY (step 20
3). If the system parameter value is not k or ANY, the desired execution system information analysis unit 2 ends the process.

If the system parameter value is k or ANY, the desired execution system information analysis unit 2 determines the system parameter value k.
Alternatively, ANY is set in the desired execution system information 13 in the job description information 12 (step 204), and the process ends.

The used peripheral device information analysis unit 3 analyzes the file definition statement and device allocation request statement in the job description to obtain the device type of the peripheral device necessary for job execution, and obtains the used peripheral device information in the job description information 12. Set to 15.

When the processing by the job description analysis means 1 is completed, the execution system determination means 5 is activated.

The execution system determination means 5 uses the used peripheral device information 15 in the job description information 12 and the peripheral device management information table 1.
Step 501: Based on the peripheral device management information in 0, search for computer systems in which all the peripheral devices necessary for executing the job are configured and available, that is, all computer systems capable of executing the job. ), determine the number of executable computer systems (step 50
2).

If the number of executable computer systems is one, the execution system determination means 5 uses the system number of the searched computer system as the execution system information 1 in the job description information 12.
4 (step 5o3), and the process ends.

If the number of executable computer systems is plural, the execution system determining means 5 determines whether a system number is set in the desired execution system information 13 in the job description information 12 (step 5o4).

If the system number has been set, the execution system determining means 5 determines whether the computer system pointed to by the system number in the desired execution system information 13 is one of the executable computer systems (step 505). Hope execution system information! ! ! If the computer system indicated by the system number 13 is one of the searched executable computer systems, the execution system determination means 5 sets the system number of the desired execution system information 13 to the execution system information 14 of the job description information 12. After setting (step 506), the process ends. If the computer system indicated by the system number in the desired execution system information 13 is not one of the searched executable computer systems, the execution system determination means 5 selects the system numbers of all the searched executable computer systems as a job. Set it in the execution system information 14 of the description information 12 to make it a target of load distribution (step 507),
Finish the process.

In step 504, if the system parameter value of the desired execution system information 13 is not a system number, that is, A
If it is NY, the execution system determination means 5 sets the system numbers of all the searched executable computer systems in the execution system information 14 of the job description information 12 to make them targets for load distribution (step 507), and processes. end.

If it is determined in step 502 that there is no executable computer system, the execution system determining means 5 deletes the job submitted as an error (step 508) and notifies the user of this fact. Step 509
), the process ends.

When the job description is completely analyzed by the job description analysis means 1 and the job description information 12 is prepared by setting the execution system information 14 by the execution system determination means 5, the job description information registration means 7 stores the job name and job description. information 12 is registered in the job activation table 11, and a job input notification is sent to the job activation means 8.

Next, the operation of the job starting means 8 will be explained.

Here, it is assumed that the job activation table 11 is as shown in FIG.

When the job starting means 8 receives the notification (step 80
1) The receiver determines whether the received notification is a job input notification (step 802).

If it is a job input notification, the job starting means 8 obtains the load status of the own computer system from an internal table (not shown) and determines whether or not there is a margin in the load status of the own computer system (step 803). If there is no margin in the load situation, the job starting means 8 ends the process. If there is enough load on your company's computer system,
The job starting means 8 determines whether a job that can be executed by the company's computer system is registered in the job starting table 11, that is, if the system number of the company's computer system is set in the execution system information 14 and the job status is 1.
It is determined whether or not a job for which No. 6 is waiting to be started is registered (step 804). If no job is registered that can be executed by your company's computer system, job starting means 8
ends the process. If jobs that can be executed by the in-house computer system are registered, the job starting means 8 selects an appropriate job from among them (step 805), starts the selected job, and sends the job starting to the job management means 18. Send a notification (step 806). Here, assuming that the system number of the in-house computer system is m, in the example shown in FIG. 7, job b, job d, and job e are the jobs to be selected by the job starting means 8. Here, it is assumed that job b has been selected and started. Next, the job starting means 8 updates the job status 1 of the started job b.
6 is executed (step 807), and the value of the multiplicity counter in the internal table is incremented by one (step 80).
8) End the process.

The execution management means 18 that has received the job start notification from the job start means 8 starts managing the execution state of job b,
When the execution of job b is completed, a job completion notification is sent to job starting means 8.

After the processing in steps 801 and 802, the job starting means 8 determines whether or not it is a job end notification since it is not a job notification manually (step 809).
If there is no zip completion notification, the process ends. If it is a job end notification, the job starting means 8 deletes the job description information 12 of the job b whose execution has ended from the job starting table 11 (step 810 ), and increases the value of the multiplicity counter in the internal table by one. Subtract (step 811). Continuing, the job starting means 8 performs step 80.
After performing the processing from step 3 to step 808, the processing ends.

〔Effect of the invention〕

As explained above, the present invention automatically selects an executable computer system based on the peripheral device management information and desired execution system information of each computer system forming a loosely coupled computer system immediately after analyzing a job description. By doing so, the following effects can be obtained.

(11) Even if a job is submitted that uses a peripheral device that is not configured or is in an unusable state on one computer system, the job will be submitted to a computer system that has the same peripheral device configured and available. can be executed.

(2) The user can effectively utilize each computer system without knowing the peripheral device management information of each computer system that constitutes the loosely coupled computer system.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a job execution system automatic selection method according to an embodiment of the present invention, and FIG. 2 is an example of the configuration of a loosely coupled computer system to which the job execution system automatic selection method of this embodiment is applied. FIG. 3 is a diagram showing the syntax of the execution system specification job control statement and the meaning of system parameters. FIG. 4 is a flowchart showing the processing in the desired execution system information analysis section in FIG. 1. is a flowchart showing the processing in the execution system determining means in FIG. 1, FIG. 6 is a flowchart showing the processing in the job starting means in FIG. 1, and FIG. 7 shows an example of the job starting table in FIG. It is a diagram. In the figure, 1... Job description analysis means, 2... Desired execution system information analysis section, 3... Used peripheral device information analysis section, 4... Other job description analysis section, 5... Execution system Judgment means, 6... Peripheral device management information copying means, 7... Job description information registration means, Job starting means, Peripheral device management information area, Peripheral device management information table, Job starting table, Job description information, Desired execution These are system information, execution system information, peripheral device information, job status, job input means, and execution management means.

Claims (1)

[Claims] Job description information including desired execution system information specified by an execution system specification job control statement at the time of job submission is held in a secondary storage device that can be shared among multiple computer systems, and this job description information is stored in a secondary storage device that can be shared among multiple computer systems. It has a spooling sharing function that enables job execution control between multiple computer systems by selecting and starting jobs that can be executed on each computer system based on and in a loosely coupled computer system in which peripheral device management information of each computer system is held on the main storage device for each computer system, the peripheral device management information held on the main storage device of the computer system is peripheral device management information copying means for copying onto a secondary storage device that can be shared between computer systems; a peripheral device information analysis unit for obtaining used peripheral device information indicating a peripheral device used in a job; a desired execution system information analysis unit that analyzes a control statement to obtain desired execution system information; and the used peripheral device information obtained by the used peripheral device information analysis unit and the peripheral device management information copying means to copy the used peripheral device information to the secondary storage device. execution system determining means for determining an executable computer system and obtaining execution system information based on the peripheral device management information copied above and the desired execution system information obtained by the desired execution system information analysis section; Registering the job description information including the execution system information obtained by the execution system determining means, the used peripheral device information, and the desired execution system information on the secondary storage device, and sending a job input notification to the job starting means. sending job description information registration means; and job starting means for selecting and starting a job executable on the own computer system based on the job description information registered on the secondary storage device by the job description information registration means. An automatic job execution system selection method comprising: