JP2000172515A - System and method for resource priority allocation and recording medium where resource priority allocating program is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allocate resources preferentially from a job or step having high priority of resource allocation. SOLUTION: A resource allocating means 31 allocates resources to a job and a step 20 at a resource allocation request and suspends the resource allocation when resources are already allocated. A step end means 23 and a job end means 24 receive a step end notice and a job end notice and make a request to release step resources and job resources which are allocated to the step 20 and job. A resource releasing means 32 releases the specified resources at a resource release request and informs the resource allocating means 31 for the job with top allocation priority of the releasing of the resources when jobs waiting for releasing of the released resources are present and resets the wait for the resources.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resource priority assignment method, a resource priority assignment method, and a recording medium on which a resource priority assignment program is recorded. The present invention relates to a resource priority allocation method, a resource priority allocation method, and a recording medium that records a resource priority allocation program.

[0002]

2. Description of the Related Art An example of a conventional resource priority allocation method is as follows.
It is described in JP-A-03-288235. In this conventional resource priority allocation method, when a resource waits for the same resource among a plurality of programs or a plurality of tasks, the resource is allocated with a higher priority in priority. It is a technique that goes.

[0003] Another example of the conventional resource priority allocation system is described in Japanese Patent Application Laid-Open No. 03-51920. This conventional resource priority allocation method is a technique in which, when a resource conflict occurs between a plurality of jobs, the resource that has a higher priority is assigned to the resource with the highest execution class.

[0004]

However, according to these conventional techniques, resources are allocated when a job using the resources ends, so that when a job is to be executed urgently, However, when the job uses a resource used by another job, there is a problem that it is necessary to wait until the other job ends and releases the resource.

[0005] It is an object of the present invention to provide a resource priority allocation system which can allocate a resource to a job without waiting for the end of another job using the resource.

[0006]

According to a first resource priority allocation method of the present invention, in an operating system for controlling execution of a job including a plurality of steps, a resource used by the step is allocated at the start of the step. If it is possible to assign the resource to the step, and if the resource is already assigned to another job or step and cannot assign the resource to the step, do not assign the resource to the step. There is provided a resource allocating unit that waits for a notification that the resource has been released, and allocates the resource to the step when the notification is received.

[0007] A second resource priority allocation method according to the present invention is as follows.
In the first resource priority assignment method, when there are a plurality of steps waiting for the notification, the resource assignment means assigns the resource to the highest priority step among the plurality of steps. It is characterized by.

[0008] A third resource priority allocation method of the present invention is as follows.
In the first or second resource priority allocation method, the resource priority allocation method further includes, at the end of the step, releasing the resource allocated to the step and indicating that the resource has been released by the resource allocation unit. And a resource release unit for notifying the user.

[0009] A fourth resource priority allocation method of the present invention is as follows.
In the third resource priority assignment method, the resource priority assignment method further includes, at the end of the step, waiting for a resource already assigned to a job including the step, the resource having a higher priority than the job. If there is a step of the job and the job permits temporary release of the resource, the resource release unit includes a resource temporary release request unit for transmitting a resource release request to the resource release unit. Receiving the release request and releasing the resources allocated to the job.

[0010] A first resource priority allocation method according to the present invention comprises:
In the operating system, at the start of a step included in a job, if the resource used by the step can be allocated, the resource is allocated to the step, and the resource has already been allocated to another job or step. If the resource cannot be allocated to the step, do not allocate the resource to the step, wait for the notification that the resource has been released, and allocate the resource to the step when the notification is received. It is characterized by.

[0011] A second resource priority allocation method according to the present invention comprises:
In the operating system, when there are a plurality of steps awaiting release of a resource allocated to another job or step, the plurality of steps are notified when the release of the resource is notified. And assigning the resource to the step having the highest priority.

[0012] A third resource priority allocation method of the present invention comprises:
In the operating system, at the start of a step included in a job, if the resource used by the step can be allocated, the resource is allocated to the step, and the resource has already been allocated to another job or step. If the resource cannot be allocated to the step, the resource is not allocated to the step, and awaiting the release of the resource,
Releasing the resource, and allocating the resource to the step after the resource is released.

[0013] A fourth resource priority allocation method according to the present invention comprises:
At the end of the step, at the end of the step, there is another job step with a higher priority than the job waiting for resources already assigned to the job containing the step, and the job is temporarily If the release of the resource is requested, the resource allocated to the job is released when the release of the resource is requested, and after the resource is released, the resource is released. The resource is allocated to the other job or step waiting for the release of the job.

According to the first recording medium of the present invention, at the start of a step included in a job, if a resource used by the step can be allocated, the resource is allocated to the step, and the resource is already allocated to another job. Or, if the resource is assigned to a step and the resource cannot be assigned to the step, the resource is not assigned to the step and the system waits for notification that the resource has been released and receives the notification. And recording a program for causing a computer to perform a process of allocating the resource to the step.

According to the second recording medium of the present invention, when there are a plurality of steps waiting for the release of the resources allocated to another job or step, it is notified that the resources have been released. At the point in time, a program for causing a computer to perform the process of allocating the resource to the highest priority step among the plurality of steps is recorded.

According to the third recording medium of the present invention, at the start of a step included in a job, if a resource used by the step can be allocated, the resource is allocated to the step, and the resource is already allocated to another job. Or, if the resource is allocated to a step and the resource cannot be allocated to the step, the resource is not allocated to the step, the resource is released, the resource is released, and the resource is released. A program for causing a computer to perform a process of allocating the resource to the step after being released is recorded.

According to the fourth recording medium of the present invention, at the end of a step, there is a step of another job having a higher priority than that of the job, which is waiting for resources already allocated to the job including the step. Requesting the release of the resource when the job permits temporary release of the resource, and releasing the resource allocated to the job when the release of the resource is requested, After the resource is released, a program for causing a computer to perform a process of allocating the resource to the another job or step waiting for the release of the resource is recorded.

A first recording medium group according to the present invention is a recording medium wherein the program recorded on the first recording medium is divided into a plurality of portions, and the plurality of portions are respectively recorded on a plurality of recording media. Media group.

A second recording medium group according to the present invention is a recording medium in which the program recorded on the second recording medium is divided into a plurality of portions, and the plurality of portions are respectively recorded on a plurality of recording media. Media group.

A third recording medium group according to the present invention is obtained by dividing the program recorded on the third recording medium into a plurality of portions, and recording the plurality of portions on a plurality of recording media, respectively. Recording media group.

A fourth recording medium group according to the present invention is a recording medium wherein the program recorded on the fourth recording medium is divided into a plurality of portions, and the plurality of portions are respectively recorded on a plurality of recording media. Media group.

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a resource priority allocation method according to the first embodiment of the present invention.
In the resource priority allocation method according to the present embodiment, a computer (central processing unit; processor; data processing unit) 100 that operates under program control and a job execution request 11 instructing the computer 100 to execute a job
Thus, the main part is constituted.

The computer 100 includes an operating system 200 for controlling the computer 100,
Step 20, which is the execution of the program specified by the user
It is composed of

The operating system 200 includes job management information 10, resource allocation management information 30, job execution reception means 12, job execution means 13, job start means 21, step start means 22, and step end means 23. , A job termination unit 24, a step forced termination unit 25, a resource allocation unit 31, and a resource release unit 32.

The job execution request 11 is sent to the computer 10
0 indicates that the user of the computer 100 has requested the execution of the job, and has a JCL describing the execution contents of the job and information indicating the attribute of the job. In the present embodiment, it is possible to designate an urgent job in either the job execution request 11 or the JCL.

The JCL includes a control statement for designating a program to be executed and resources necessary for executing the program. In the present embodiment, the control statement instructing the allocation of the resource used by the job or the resource used by the step includes the priority of resource allocation, whether or not to permit temporary release of the job resource, and the Job operation can be specified.

The job execution receiving means 12 receives a job execution request 11 from a user, and
, A job identification number, a job submitter name, a job schedule class, a job schedule priority, a resource limit value, and the like. At this time, if the urgent job is specified in the job execution request 11 or the JCL specified by the job execution request 11, the job execution receiving unit 12
The urgent job flag of the job management information 10 is set to ON.

The job execution means 13 generates an unexecutable job from the job management information 10 in response to a new job occurrence notification from the job execution reception means 12, a job end notification from the job end means 24, or the like. Search for the existence. If there is an executable job,
The job execution unit 13 requests the job start unit 21 to execute the job.

The job starting means 21 requests the resource allocating means 31 to allocate the job resources of the corresponding job described in the JCL, and requests the step starting means 22 to start step 20 after the job resource allocation is completed.

The step starting means 22 requests the resource allocating means 31 to allocate the step resource of the step 20 of the job described in the JCL, and activates the step 20 of the job after the step resource allocation is completed.

The step ending means 23 receives the end notification of the step 20, requests the resource releasing means 32 to release the step resources allocated to the step 20, and searches the JCL after releasing the step resources. If there is a step 20 to be continued, a request is made to the step start means 22 to start the next step 20, and a step 2 to be continued
If 0 does not exist, the job termination unit 24 is requested to terminate the job.

The job termination unit 24 requests the resource release unit 32 to release the job resources allocated to the job, and notifies the job execution unit 13 of the end of the job after releasing the job resources.

The step forcibly terminating unit 25 is a step 2 designated based on a request from the resource allocating unit 31.
0 is forcibly terminated abnormally.

The resource allocation means 31 sets the job identification number, the external resource name, the internal resource name, the allocation range, the allocation method, and the like of the specified resource in the resource allocation management information 30. The resources are secured, and the busy flag of the resource allocation management information 30 is set to ON. If the resource cannot be used, the waiting flag of the resource allocation management information 30 is set to ON. If there is a resource already reserved, the busy flag of the resource is reset to OFF to reset the resource. Request to be released.

The resource release means 32 releases the designated resource by deleting the entry of the corresponding resource in the resource allocation management information 30, searches the resource allocation management information 30 and waits for release of the released resource. If a job exists, the resource allocation management unit 30 notifies the resource allocation unit 31 that is waiting for release of the resource of the job having the highest allocation priority in the resource allocation management information 30 that the resource has been released, and releases the waiting. I do.

Referring to FIG. 2, the job management information 10
Each entry has a job identification number, a job submitter name, a job schedule class, a job schedule priority, a resource control value, and an urgent job flag.

The job management information 10 is created by the job execution receiving means 12 based on the contents of the job execution request 11 and the designation of the JCL when the job is submitted. Jobs existing in the system are all job management information 1
0 and one entry is created for one job. When recognizing the status or attribute of a job by another means, the job management information 10 is searched and information on the job is acquired. The job management information 10 includes
At the end of the job, the job is deleted by the job ending means 24.

The job identification number stores information for identifying the job, and is used for searching the job management information 10. A job identification number is added to every job submitted to the system as identification information for uniquely identifying the job.

The job submitter name stores an identification name indicating a user who has submitted the job.

The job schedule class stores information indicating to which category the job is to be executed. The start and stop of a job schedule, the limitation on the number of executions, and the like are performed for each division.

The job schedule priority stores the priority for starting a job in a job class.

The resource limit value stores information indicating the limit of various resources used in the job. For example, CPU
(Central Processing Unit)
The maximum usable limit value, the longest executable time of a job, and the maximum usable amount of a spool file are stored.

The urgent job flag stores information indicating whether the job is an urgent job.

Referring to FIG. 3, resource allocation information 30
Indicates that one entry has a job identification number, an external resource name, an internal resource name, an allocation range, an allocation method,
Assignment priority, temporary release enable flag, temporary release job operation, busy flag, temporary release flag,
And a waiting flag.

The resource allocation information 30 is created and referenced by the resource allocation means 31 based on the contents of the JCL resource allocation designation statement at the start of execution of the job and step 20. The resources used by the jobs being executed in the computer 100 are all managed by the resource allocation information 30, and one resource is used for each job.
One entry is created. The resource allocation information 30
At the end of the job or step 20, it is deleted by the resource release means 32.

The job identification number stores the identification information of the job using the resource, and corresponds to the job identification number in the job management information 10.

The external resource name stores information for identifying a resource to be used, such as a file name. Resource allocation information 3
When searching for 0, the search is performed using the job identification number and the external resource name.

The internal resource name is an identification name in the program used by the program using the resource.

The allocation range includes information indicating whether the relevant resource is allocated as a job resource in the relevant job or whether it is allocated as a step resource.
In the case of a step resource, the corresponding step number is stored.

The allocation method stores information indicating whether the relevant resource is shared or exclusively allocated to the relevant job.

The assignment priority stores the priority for deciding which job is to be assigned the resource next when waiting for a resource.

The temporary release flag stores information indicating whether the resources allocated as job resources can be temporarily released.

The temporary release job operation stores information indicating whether the job is to be continuously executed or abnormally terminated when the job resource is temporarily released.

The in-use flag stores information indicating that the corresponding job is using the corresponding resource.

The temporary release flag stores information indicating that the relevant job is temporarily releasing the relevant resource.

The waiting flag stores information indicating that the job is waiting for release of the resource being used by another job.

Referring to FIG. 4, resource allocation means 31
Is a designated resource type determination step 31-1, a resource release waiting step 31-2, a step 31-11 of searching for all the job resources of the job that have not been released temporarily, and a temporary release determination step 31-12. An allocation request determining step 31-13 having a high allocation priority; and a resource temporary releasing step 31-.
14, a resource release notification step 31-15, a repetition step 31-16, a temporarily released resource determination step 31-17, a step 31-21 of searching for all the temporarily released job resources of the job, Assignment determination step 31-2
2, a wait information registration step 31-23, a reserved job resource release wait determination step 31-24, and a resource release request step 31
-25, a resource allocation step 31-26, a repetition step 31-27, an execution step 31-31 for all the designated job / step resources of the job, a resource allocation determination step 31-32, and waiting information. Registration process 31-
33 and reserved job resource release wait determination step 31-34
A resource release requesting step 31-35, a resource allocating step 31-36, a repetition step 31-37, an execution step 31-41 for all specified reserved job / step resources of the job, and a resource release. Step 31-42
And repeating steps 31-43.

Referring to FIG. 5, wait information registration step 31
-23 and 31-33 are a waiting flag ON step 31-52, a corresponding job urgent job flag judging step 31-52, a secured job urgent job flag judging step 31-53, an assignment priority It comprises a comparison step 31-54 and a step forced termination request step 31-55.

Referring to FIG. 6, the processing of the resource release means 32 includes a designated type resource search step 32-1 of the job,
Resource release step 32-2, resource release waiting job determination step 32-3, highest allocation priority resource release waiting job search step 32-4, resource release notification step 32-5, and allocation method determination step 32-6. , A shared allocation designated resource release waiting job process 32-7 for the same resource, a resource release notification process 32-8, a repetition process 32-9, and a repetition process 32-10.

Next, the operation of the resource priority allocation system according to the first embodiment thus configured will be described with reference to FIG.
This will be described with reference to FIG.

When there is a job execution request 11 from the user,
The job execution receiving unit 12 receives the job execution request 11, generates one entry of the job management information 10, and
A job execution request 11 and a JCL are included in the job management information 10.
, The job identification number, the job submitter name, the job schedule class, the job schedule priority, the resource limit value, etc. At this time, the job execution request 11
Alternatively, if the JCL specified by the job execution request 11 specifies an urgent job, the job execution receiving unit 1
No. 2 sets the emergency job flag of the job management information 10 to ON. Thereafter, the job execution receiving unit 12 notifies the job executing unit 13 that a new job has occurred.

When a new job occurrence notification is received from the job execution receiving unit 12, the job executing unit 13 searches the job management information 10 and determines whether there is an executable job. If there is an executable job,
The job execution unit 13 requests the job start unit 21 to execute the job.

When there is a job execution request from the job execution means 13, the job start means 21
Is requested to the resource allocating unit 31 on the basis of the contents of (1).

When there is a batch resource allocation request from the job initiating means 21, the resource allocating means 31 determines that job resources are to be allocated (step 31-1), and allocates resources for all designated job resources. Processing is performed (steps 31-31, 32, 36, 37).

More specifically, the resource allocating means 31 searches the resource allocation management information 30 for each resource, and the resource to be allocated is being used by another job (a different job identification number is designated and the same external resource name is used). Is present in the resource allocation management information 30 in which the resource allocation management information 30 is specified), or waits for resource release when there is a job in use (the allocation method of the resource allocation management information 30 indicates the exclusive allocation or the resource allocation to be performed in the future). It is determined whether or not the condition is such that the allocation method is occupation allocation (step 31-).
32) If the condition does not indicate that the resource is to be released, an entry is created in the resource allocation management information 30 and the busy flag is set to ON to allocate resources (steps 31-36). When all the job resources have been allocated, the resource allocation unit 31
1 is notified to that effect, and the process is terminated.

When the job starting means 21 receives the notification from the resource allocating means 31 that the allocation of the job resources has been completed, it requests the step starting means 22 to start the step.

The step starting means 22 requests the resource allocating means 31 to collectively allocate the step resources of the corresponding step 20 based on the contents of the JCL of the designated job.

When there is a batch resource allocation request from the step starting means 22, the resource allocating means 31
It is determined that the step resource is to be allocated (step 31-1), the job resource already secured (the job identification number of the job is specified, the value indicating the job is set in the allocation range, and the busy flag is set. Whether there is another job or step with a higher allocation priority waiting for the ON resource allocation management information 30 entry (the same external resource name specified in the entry of the resource allocation management information 30 is specified). To check if there is any entry whose waiting flag is ON (step 3).
1-11 to 16).

More specifically, the resource allocation unit 31 sets the temporary release flag of the resource allocation management information 30 to OFF,
Also, whether the busy flag is ON and the temporary release enable flag of the resource allocation management information 30 is ON (step 31-12), and the resource allocation with a higher allocation priority is waiting for resource release (different It is checked whether the job identification number is specified, the same external resource name is specified, and an entry of the resource allocation management information 30 whose waiting flag is ON is present (step 3).
1-13) If the resource is waiting to be released, the temporary release flag in the resource allocation management information 30 is turned on to put the resource in the temporary release state (step 31-1).
4) The resource allocation unit 31 that is waiting for the release of the resource is notified of the release of the resource (step 31-15), and the resource allocation unit 31 cancels the release of the resource. Jobs that require the resources are the jobs with the highest allocation priority and all the jobs that are waiting to release resources to share the same resources when the jobs with the highest allocation priority perform shared allocation. Job.

If the temporarily released resources are specified to indicate abnormal termination as a job operation when the resources are temporarily released (step 31-17), the resource allocating means 31
The step start means 22 is notified that the temporarily released resource exists, and the resource allocation ends.

Next, the resource allocating means 31 re-allocates the temporarily released resources (step 31-).
21-27).

More specifically, the resource allocating unit 31 refers to the job management information 10 and, if the urgent job flag in the job management information 10 is ON, allocates the resources required by the urgent job to a job with a lower priority. (A different job identification number is specified, the same external resource name is specified, an in-use flag is ON, and an entry of the resource allocation management information 30 with a lower allocation priority exists), It is determined whether or not the condition for waiting for the release of the resource (the allocation method of the resource allocation management information 30 is the exclusive allocation or the allocation method of the urgent job is the exclusive allocation) (step 31-22). In the case of, the entry is stored in the resource
(Step 31-26). When all the job resources have been allocated, the resource allocation unit 31
Subsequently, step resources are allocated (steps 31-31).
~ 37).

On the other hand, when it is determined that the resource is to be released for each resource (step 31-22), the resource allocating unit 31 registers the resource waiting information in the resource allocation management information 30 (step 31-23). ). For details, see step 31-
In step 23, after turning on the waiting flag (step 31-51), the resource allocating unit 31 refers to the job management information 10 and determines whether or not to allocate resources for the urgent job based on the urgent job flag of the job. Judgment (ON in steps 31-52), and in the resource assignment of the urgent job,
If the job to which resources are currently assigned is not an urgent job (OFF in steps 31-53) and the assignment priority is lower (steps 31-54), step 20 of the job to which resources are currently assigned is forced. A request is made to the step forced termination means 25 to terminate the processing (step 31-5).
5).

The job forcibly terminating means 25 determines whether or not the job has been specified in step 20 based on the request from the resource allocating means 31.
Is abnormally terminated.

Next, the resource allocating means 31 determines whether or not the job currently securing resources is waiting for release of another resource (step 31-24). Makes a resource release request (step 31-2).
5) Release the resource release waiting (step 31-2). Thereafter, the resource allocating unit 31 waits for the release of the resources (step 31-2).

After the allocation to all the job resources is completed, the resource allocation means 31 performs a resource allocation process for all the specified step resources (step 31-).
31, 32, 36, 37). At this time, the resource allocating means 31 determines whether or not each resource is in a condition of waiting for resource release (steps 31-32). It is added to the management information 30 (steps 31-36). This step 3
In step 1-36, the resource allocating unit 31 determines in the JCL job resource allocation designation statement whether or not the temporary release of the job resource is possible at the time of switching to step 20, and whether the job is temporarily released. If an operation (execution continuation / abnormal termination) is specified, information is added to the resource allocation management information 30.

When all the step resources have been allocated, the resource allocation means 31
2 is notified to that effect, and the process ends.

On the other hand, when it is determined that each resource is to wait for a resource (step 31-
32), resource waiting information is registered in the resource allocation management information 30 (steps 31-33). For details, Step 31-3
In step 3, the resource allocating means 31 turns on the waiting flag (step 31-51), and then refers to the job management information 10 to determine whether or not to allocate resources for the urgent job based on the urgent job flag of the job. Judgment (Step 3
In the resource assignment of the emergency job, if the job to which the resource is currently assigned is not an emergency job (OFF in step 31-53) and the assignment priority is lower (step 31-54). Request the step forcibly terminating means 25 to forcibly terminate step 20 of the job to which the resource is currently assigned (step 31-5).
5).

The job forcibly terminating unit 25 determines whether or not the job has been specified in step 20 based on the request from the resource allocating unit 31.
Is abnormally terminated.

Next, the resource allocating means 31 determines that the job currently securing the resource is waiting for another resource release (the job identification number of the job securing this resource is the same and the waiting flag is set). It is determined whether or not there is an entry of the resource allocation management information 30 that is ON (steps 31-34). If it is waiting for resource release, a resource release request is made to the resource release means 32 (step 31-34). 31
-35), release the resource release waiting (step 31-2).

Subsequently, the resource allocating means 31 releases all of the allocated step resources (step 31-4).
1 to 43), the information of the released step resource is deleted from the resource allocation management information 30 (step 31-42), and the process waits until the resource is released (step 31-2).

In the resource release waiting (step 31-2), the process can be continued when the resource release notification or the resource release request is received. When the resource release waiting is released, the resource allocation unit 31 repeats the same processing again.

When the step starting means 22 receives the notification from the resource allocating means 31 that the allocation of the step resources has been completed, the step starting means 22 starts step 20.

When the operation of step 20 is completed, the step ending means 23 requests the resource releasing means 32 to release the step resources of step 20 which has been completed at once,
If there is a subsequent step, the step start means 22 is started, and if there is no subsequent step, the job end means 24 is started.

The resource releasing means 32 is a step ending means 2
3, the resource allocation management information 30
, And delete the entry of the resource allocation management information 30 of the corresponding resource to release the corresponding resource (step 32-).
2) There is a job waiting for release of the resource (an entry whose waiting job flag is ON in the resource allocation management information 30 in which a different job identification number is specified and the same external resource name is specified). In the case (step 32-3), a resource release waiting job of the job having the highest allocation priority is searched (step 32-4), and the resource is released to the resource allocating unit 31 waiting to release the resource. A notification to that effect is sent (step 32-5).

Next, the resource release means 32 determines whether or not the resource allocation of the job having the highest allocation priority is a shared allocation (step 32-6). A resource release notification is issued while waiting for the resource release of the shared allocation designation for the resource (step 32-7).
To 9), release the resource release wait.

The job ending means 24 started by the step ending means 23 requests the resource releasing means 32 to release the job resources of the completed job collectively.

The resource releasing means 32 releases the job resources in a batch in the same manner as the step resources.

When the batch release of the job resources by the resource release unit 32 ends, the job end unit 24 notifies the job execution unit 13 that the job has ended. When receiving the job end notification, the job execution unit 13 deletes the corresponding entry of the job management information 10.

On the other hand, the resource allocating means 31 of the secured job that has secured the resource allocates the specified resource again at the start of the new step 20 and at the time of releasing the resource release wait. When allocating resources, the resource allocation management information 30 is searched (step 31-1).
1 to 16), the job resources assigned to the job can be temporarily released (the job identification number of the job is the same, the allocation range is a value indicating the job, the busy flag is ON, and the job can be temporarily released) (There is an entry of the resource allocation management information 30 whose flag is ON) (step 31-12), and there is a resource release wait of a higher allocation priority in another job (job identification number of the relevant job) , The waiting flag is ON, and the resource allocation management information 3 having a higher allocation priority.
If there is an entry of 0) (step 31-13), the temporary release flag is set to ON to release all the resources (step 31-14), and the resources waiting to be released are released. The allocation means 31 is notified of the release of the resources (step 31-15). If any of the temporarily released resources has a value indicating that the job operation at the time of the temporary release in the resource allocation management information 30 is abnormally terminated (step 31-17), the resource allocation unit 31 Returns information indicating that the temporarily released resource exists to the step starting means 22, and ends the resource allocation.

If there is no resource to be temporarily released, the resource allocating means 31 searches the resource allocation management information 30 (steps 31-21 to 27) and allocates the temporarily released job resource. If resources cannot be allocated, a wait is performed in the same manner as described above, and after all job resources have been allocated, step resources are allocated.

When the resource starting means 22 is notified from the resource allocating means 31 that there is a temporarily released resource, the step starting means 22 terminates the job abnormally.

In this way, it is possible to temporarily release the job resources of a job having a low allocation priority and to preferentially allocate resources to a job having a high allocation priority.

Next, a second embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 7, the second embodiment of the present invention includes a recording medium 300 on which a resource priority assignment program is recorded. The recording medium 300 may be a floppy disk, a magnetic disk, a semiconductor memory, or another recording medium. The resource priority assignment program is read into the computer 100 from the recording medium 300 and controls the operation of the computer 100. The computer 100 performs the above-described processing under the control of the resource priority allocation program,
That is, the same processing as the processing in the first embodiment is executed.

[0097]

As described above, according to the present invention, the resources used only by a step are released when the step is completed, so that other jobs or steps can execute the job without waiting for the end of the job. Resources can be used.

Therefore, the resources can be used efficiently, and the job throughput can be increased.

Further, since resources are allocated from jobs or steps having a high resource allocation priority, an urgent job or step can be preferentially executed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a resource priority allocation method according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating contents of job management information in FIG. 1;

FIG. 3 is a diagram illustrating contents of resource allocation management information in FIG. 1;

FIG. 4 is a flowchart showing processing of a resource allocation unit in FIG. 1;

FIG. 5 is a flowchart showing a more detailed process of a wait information registration step in FIG. 5;

FIG. 6 is a flowchart showing a process of a resource release unit in FIG. 1;

FIG. 7 is a block diagram illustrating a configuration of a resource preferential allocation method according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Job management information 11 Job execution request 12 Job execution accepting means 13 Job executing means 21 Job starting means 22 Step starting means 23 Step ending means 24 Job ending means 25 Step forced ending means 30 Resource allocation management information 31 Resource allocating means 32 Resource release Means 100 Computer 200 Operating system 300 Recording medium

Claims (16)

[Claims] 1. An operating system for controlling execution of a job including a plurality of steps, wherein at the start of the step, if a resource used by the step can be allocated, the resource is allocated to the step, and the resource is If the resource cannot be assigned to the step because it has already been assigned to another job or step, wait for the notification that the resource has been released without assigning the resource to the step. A resource allocation means for allocating the resource to the step when the resource is received. 2. The method according to claim 1, wherein the resource allocating unit allocates the resource to a step having the highest priority among the plurality of steps when there are a plurality of steps waiting for the notification. The resource priority allocation method according to claim 1. 3. The resource allocating method further comprising: releasing resource allocated to the step at the end of the step and notifying the resource allocating means that the resource has been released at the end of the step. 3. The resource priority allocation method according to claim 1, further comprising: 4. The method according to claim 1, further comprising: at the end of the step, waiting for a resource already allocated to a job including the step, the step of another job having a higher priority than the job. Is present, and when the job permits temporary release of the resource, the resource release unit includes a resource temporary release request unit for transmitting a resource release request to the resource release unit. 4. The resource priority allocation method according to claim 3, wherein said resource is allocated and said resource is released. 5. At the start of a step included in a job,
If the resource used by the step can be allocated, the resource is allocated to the step.If the resource is already allocated to another job or step and the resource cannot be allocated to the step, the resource is allocated. Allocating the resource to the step without waiting for the notification of the release of the resource without allocating the resource to the step, and allocating the resource to the step when the notification is received. 6. When there are a plurality of steps awaiting release of a resource allocated to another job or step, when the notification that the resource has been released is given, the plurality of steps are deleted. A resource priority assignment method in an operating system, wherein the resource is assigned to a step having the highest priority. 7. At the start of a step included in a job,
If the resource used by the step can be allocated, the resource is allocated to the step.If the resource is already allocated to another job or step and the resource cannot be allocated to the step, the resource is allocated. Waiting for the resource to be released without allocating the resource to the step, releasing the resource, and further allocating the resource to the step after the resource is released. Method. 8. At the end of a step, there is a step of another job having a higher priority than the job, waiting for a resource already allocated to the job including the step, and When the temporary release is permitted, the release of the resource is requested, and when the release of the resource is requested, the resource allocated to the job is released. Allocating the resource to the other job or step waiting for the release of the resource; 9. At the start of a step included in a job,
If the resource used by the step can be allocated, the resource is allocated to the step.If the resource is already allocated to another job or step and the resource cannot be allocated to the step, the resource is allocated. Without assigning the resource to the step, waiting for a notification that the resource has been released, and recording a program for causing the computer to perform the process of assigning the resource to the step when the notification is received. Recording medium. 10. When there are a plurality of steps awaiting release of a resource allocated to another job or step, when the notification that the resource has been released is given, the plurality of steps are deleted. A recording medium on which a program for causing a computer to perform a process of allocating the resource to a step having the highest priority is recorded. 11. At the start of a step included in a job, if a resource used by the step can be allocated, the resource is allocated to the step, and the resource has already been allocated to another job or step, and If the resource cannot be allocated to the step, do not allocate the resource to the step, wait for the resource to be released, release the resource, and further release the resource after the resource is released. A recording medium on which a program for causing a computer to perform a process assigned to a step is recorded. 12. At the end of a step, there is a step of another job having a higher priority than the job, waiting for a resource already allocated to the job including the step, and When the temporary release is permitted, the release of the resource is requested, and when the release of the resource is requested, the resource allocated to the job is released. A recording medium recording a program for causing a computer to perform a process of allocating the resource to the another job or step waiting for the release of the resource. 13. A recording medium group obtained by dividing the program according to claim 9 into a plurality of portions and recording the plurality of portions on a plurality of recording media. 14. A recording medium group obtained by dividing the program according to claim 10 into a plurality of portions and recording the plurality of portions on a plurality of recording media. 15. A recording medium group obtained by dividing the program according to claim 11 into a plurality of portions and recording the plurality of portions on a plurality of recording media. 16. A recording medium group obtained by dividing the program according to claim 12 into a plurality of parts and recording the plurality of parts on a plurality of recording media.