JPH11110237A - Job management device and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure the job activation immediacy and also to eliminate the checking and changing processes of an attribute which are needed when a job is reconnected to a conventional super-express job queue by fetching the head pointer if a pointer is queued on a virtual job queue and then fetching a job out of a job queue to activate execution of the job if the pointer is not pointed. SOLUTION: When a job is activated, the head pointer is fetched out and the job is executed by referring to the job that is pointed by a pointer if the pointer is queued on a virtual job queue 62. If no pointer is queued on the queue 62, a job is fetched out of a job queue 61 and executed. Therefore, the queue 62 is pointed on the job that is connected to the queue 61 and the job activation immediacy is assured by the job that is connected to the queue 62.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a job management apparatus and a recording medium for managing a job execution order by queuing jobs in a job queue.

[0002]

2. Description of the Related Art Conventionally, in a computer system,
Some jobs are connected to a job queue (batch queue) and executed in order from the first job. If you want to start a specific job immediately, (a) raise the priority of the specific job and start it preferentially. (B) Move the job to the top of the job queue and start it next. (C) Express job A queue was prepared and jobs were connected to the queue and started immediately.

[0003]

The above-mentioned (a) and (b)
In the case of, there is a problem that even if the priority of the job is raised or the job is moved to the head of the job queue, there is no guarantee that the job can be started immediately.

In case (c), as shown in FIG. 4, it is necessary to prepare an express job queue, which requires a definition and complicates the process. FIG. 4 shows an explanatory diagram of the prior art. In FIG. 4, the attributes of the express job queue A and the job queue A (the attributes of the maximum memory size of 100 MB and the maximum number of PEs of 3) are respectively defined and created.
It is created by defining the attributes of the express job queue B and the job queue B (the attributes of the maximum memory size of 50 MB and the maximum number of PEs of 1) to be the same. As described above, there is a problem that labor and processing for defining and creating the express job queue A and the job queue A having the same attribute are required. If the attributes of the express job queue A 'and the job queue A' are different, if the job enqueued in the job queue A 'is to be reconnected to the express job queue A' for immediate execution, the attribute There is a problem in that complicated processing such as reconnection is required when checking is possible. Even if such attributes are different, it is desired to start the job immediately.

[0005] The present invention solves these problems,
Set up a virtual job queue and point to the job linked to the job queue, immediately start the job linked to the virtual job queue, guarantee the immediacy of job startup, and place the job in the conventional express job queue. It is an object of the present invention to immediately start a job without performing a process such as checking or changing an attribute that occurs at the time of reconnection.

[0006]

Means for solving the problem will be described with reference to FIG. In FIG. 1, a job management unit 5 queues a job in a job queue 61, or, when a pointer is queued in a virtual job queue 62 at the time of job execution, takes out a leading pointer and points to the pointer. The execution of the job is started by referring to the existing job and the virtual job queue 62
If the pointer is not queued, the job is taken out of the job queue 61 and execution is started.

The queue 6 is composed of a job queue 61 and a virtual job queue 62, and manages the execution order of jobs. Next, the operation will be described.

If a pointer is queued in the virtual job queue 62 at the start of the job, the job management means 5 takes out the leading pointer and refers to the job pointed to by the pointer to execute the job. When started, if the pointer is not queued in the virtual job queue 62, the job is taken out from the job queue 61 and the execution is started.

Therefore, the virtual job queue 62 is provided, the job connected to the job queue 61 is pointed at, and the job connected to the virtual job queue 62 is immediately started, thereby guaranteeing the immediacy of starting the job. In addition, it is possible to immediately start the job without checking or changing the attribute that occurs when a job is reconnected to the conventional express job queue.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment and operation of the present invention will be sequentially described in detail with reference to FIGS.

FIG. 1 shows a system configuration diagram of the present invention.
In FIG. 1, a computer system 1 performs various processes according to a program, and includes a PE (master).
2, one or a plurality of PEs (secondary) 2. Here, a program read from a hard disk device, which is a recording medium or an external storage device (not shown), or a program transferred from a hard disk device at a center via a line is loaded into the main storage and activated, and will be described below. Various processes are performed.

The PE (master) 2 and one or a plurality of PEs (secondary) 2 are processors, each of which comprises an OS 3 and an application 4. The OS 3 is an operating system that controls the entire system.

The application 4 is an application program that loads an application program (application program) in a hard disk device as an external storage device into a memory (main memory) and starts it to perform various business processes. In the example, the job management unit 5, the queue 6, and the job 7 are provided.

The job management means 5 manages the execution order of the jobs. Here, the jobs are queued in the job queue 61 or queued in the job queue 61 in response to a request for immediate execution of the job. Enqueues the pointer to the job being executed in the virtual job queue 61 or, if the pointer is queued in the virtual job queue 62 at the time of executing the job, retrieves the first pointer and refers to the job pointed to by the pointer To start the execution of the job.
If the pointer is not queued in the job queue 61, the job is taken out of the job queue 61 and execution is started (described later with reference to FIGS. 2 to 4).

The queue 6 manages the execution order of the jobs, and queues the job queues 61 for queuing to execute the job for each purpose and the pointer to the job to execute the job immediately. The virtual job queue 62 includes a virtual job queue 62.

The job 7 is a job for executing various business processes. The application program 8 is an application program (application program) stored in a hard disk device that is an external storage device, and is a memory (main storage).
It is loaded and activated, and performs various processes.

Next, the operation of the configuration of FIG. 1 will be described in detail according to the order shown in the flowchart of FIG. FIG. 2 is a flowchart illustrating the operation of the present invention.

In FIG. 2, S1 determines whether the job has been completed. In the case of YES, the process proceeds to S2. If no, it stands by. A step S2 removes the completed job from the queue. Further, the job pointed out from the virtual job queue 62 is removed. These remove the completed job from the job queue 61 and, when the pointer is pointed from the virtual job queue 62, further remove the pointer pointing to the job of the job queue 61 from the virtual job queue 62.

In step S3, it is determined whether there is a job in the virtual job queue. In some cases, the process is executed based on the virtual job queue 62 in S4 to S6. If not,
The processing is executed based on the job queue 61 in S8 to S10.

In step S4, the virtual job queue 6 in which S3 exists
2 has a job, so the virtual job queue 6
The job pointed to by the second pointer (the job is enqueued in the job queue 61) is extracted.

In step S5, the job is executed. This is S4
Execute the job retrieved in. A step S6 decides whether or not the job execution limit has been exceeded. If YES, the process ends.
If not, the process returns to S3 and repeats.

In step S8, the virtual job queue 6 is executed without step S3.
Since there is no job in the job queue 61, it is determined whether or not there is a job in the job queue 61. If there is, in S9, the first job in the job queue 61 is taken out and executed, and in S10
Proceed to. If no, the process ends.

In step S10, it is determined whether the job execution limit has been exceeded. If so, the process ends. If not, the process returns to S8 and repeats. As described above, at the end of the job, the completed job is removed from the job queue 61, and if the job is pointed to by the pointer from the virtual job queue 61, the pointer is removed, and the job is added to the virtual job queue 62. If there is a pointer, the process of taking out the job pointed to by the first pointer of the virtual job queue 62 and starting to execute it in S4 to S6 is repeated until the job execution limit is exceeded. If there is no pointer (or if there is no pointer) to the job queue 61 in steps S8 to S10.
When the job is enqueued, execution of the job is sequentially started from the top until the job execution limit is exceeded. As a result, of the jobs enqueued in the job queue 61, the job to be executed immediately is only pointed to by the pointer from the virtual job queue 62 with the pointer, and the job is automatically executed immediately and preferentially by the steps S2 to S6. Can be guaranteed.

FIG. 3 is a diagram for explaining a queue according to the present invention. Here, the job queue 61 manages the execution order by queuing jobs in order from the top, and is a queue provided for each purpose. In the state shown,
Job queue A has a maximum memory size of 100 MB and PE
This is a queue whose purpose is to use a maximum of 30 queues. The job queue B is a queue having a maximum memory size of 50 MB and a maximum PE usage of one.

On the other hand, the virtual job queue 62 is for enqueuing a pointer to the job enqueued in the job queue 61 and immediately executing it, as shown in FIG. , Job 2
Are sequentially enqueued. A job cannot be enqueued in the virtual job queue 62, and only a pointer to a job enqueued in the job queue 61 is enqueued. This allows
The virtual job queue 62 has no job attributes (attributes such as a maximum memory use size of 100 MB and a maximum PE use number of 30) but merely a pointer to the job. The operation of the queue 62 is extremely simple. That is, when the job to be executed immediately is in the job queue 61, only the pointer to the job is enqueued in the virtual job queue 62,
This is immediately executed by S1 to S6 in FIG. On the other hand, the job to be executed immediately is the job queue 61
If the job does not exist, the job is enqueued in the job queue 61 at the corresponding purpose, a pointer to the job is enqueued in the virtual job queue 62, and the job is immediately executed by S1 to S6 in FIG. Is done.

[0026]

As described above, according to the present invention,
A configuration is provided in which a virtual job queue 62 is provided to point over a job enqueued in the job queue 61 and a job connected to the virtual job queue 62 is immediately started. The job can be started immediately without guaranteeing and eliminating the process of checking or changing the attribute that occurs when the job is switched to the conventional express job queue. As a result, the virtual job queue 62 can be made invisible to the operation manager and the user, and there is no need to consider the improper use of the virtual job queue 62. Further, the definition such as the conventional express job queue of FIG. 4 is unnecessary. Thus, it is possible to immediately start a job enqueued in the job queue 61 or a job enqueued in the job queue 61 by extremely simple processing.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of the present invention.

FIG. 2 is a flowchart illustrating the operation of the present invention.

FIG. 3 is an explanatory diagram of a queue according to the present invention.

FIG. 4 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1: computer system 2: PE (master, secondary) 3: OS (operating system) 4: application (application program) 5: job management means 6: queue 61: job queue 62: virtual job queue 7: job 8: application program (Application program)

Claims (2)

[Claims] 1. A job management apparatus for sequentially taking out and executing jobs queued in a job queue, a job queue for queuing jobs, and a virtual queue for queuing a pointer to a job queued in the job queue. At the start of the job queue and the job, if a pointer is queued in the virtual job queue, the leading pointer is extracted, and the execution of the job is started by referring to the job pointed to by the extracted pointer. And a job management unit for taking out a job from the job queue and starting execution of the job when the pointer is not pointed to the virtual job queue. 2. A computer-readable recording medium storing a job management program for causing a computer to execute a job, a function of queuing the job in a job queue, and a pointer to the job queued in the job queue. When the job is started, if the pointer is queued in the virtual job queue, the leading pointer is taken out, and the job pointed to by the taken out pointer is referred to. Stores a job management program that starts the execution of the job and, if the pointer is not pointed at the virtual job queue, causes the computer to function as a job management function that takes out the job from the job queue and starts executing the job. Computer readable notes Media.