JP2842609B2 - Program execution schedule processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to a program execution schedule processing method in a multiprocessor system in which a plurality of clusters each having a processor equipped with a distributed kernel type operating system are connected. Configuration that automatically determines the name of the device, and provides a means to reduce the burden on the creator of the job control language, etc., and stores the correspondence between the cluster name and the device name of the device connected to the cluster. A configuration definition reference unit for extracting a cluster name of a cluster to which the device is connected from a control table and a specified device name, and a configuration definition reference unit for a program execution request by specifying the device name. The execution reception unit that obtains the cluster name from the device name, and the cluster name obtained from the device name And an activation processing unit for controlling the execution request of the program in the cluster, and the execution cluster of the program specified by the device name is automatically determined.

[Industrial applications]

The present invention relates to a program execution schedule processing method in a multiprocessor system in which a plurality of clusters each having a processor equipped with a distributed kernel type operating system are connected.

Multiprocessor systems are broadly classified into tightly-coupled multiprocessor systems and loosely-coupled multiprocessor systems. A variety of system configurations, such as a combination of these, have been put to practical use.

As one of them, there is a multiprocessor system in which a plurality of processors appear as a single system and can be flexibly adapted to various operation modes. In the following, this type of multiprocessor configuration is called FCMP (Flexibly Coupled
Multi Processor).

The FCMP system has a distributed core operating system (OS), is a system in which processors are connected by a high-speed channel, and is a system composed of a group of processors that can communicate messages between processors. FCMP is
It can be operated as one system, and from the network,
It is positioned as one local system.

In FCMP, each processor that forms the execution environment of a program is called a cluster. In order to make the entire system appear as a single system, the user must be as conscious of the internal configuration of each cluster as possible. It is desired to process.

[Conventional technology]

 FIG. 4 shows an example of the prior art.

In FIG. 4, reference numeral 10 denotes a job which is a unit of work performed by a computer requested by the user, 11 denotes an FCMP, 12-1, 12-2,..., Clusters, and 20-1, 20-2,. A device such as a device, 40 is a configuration management book recorded on paper, and 41 represents a user.

Conventionally, for example, when a user program is to be executed in a cluster 12-2 to which a device having a device name = L2 is connected,
The processing had to be performed according to the following procedure.

The user 41 checks the configuration management book 40 managed on paper in order to obtain the name of the cluster to which the device having the device name = L2 is connected.

As a result of referring to the configuration management book 40, it is known that the cluster name to which the device name = L2 is connected is PM2.

The user 41 enters a job control language (JCL) that defines a job 10 for starting a program to be executed.
Specify the cluster name "PM2".

Submit job 10. In this example, it is assumed that the program for performing the execution reception scheduling has already been started in the cluster 12-1 having the cluster name = PM1 when the system is started.

By the execution reception scheduling, the user program specified in the JCL is stored in the cluster 12-
Step 2 gives an instruction to execute. As a result, the user program using the device having the device name = L2 operates in the cluster 12-2.

As described above, in the conventional distributed OS, the user 41
However, if the user wants to execute a program under the processor to which a specific device is connected, the user 41 specifies it in the JCL, etc., referring to the data in the configuration definition management book 40 that shows the correspondence between the device and the cluster. It was necessary to specify a cluster name and submit a job to the system.

[Problems to be solved by the invention]

In the prior art, when a program using a specific device is operated, the configuration definition management book 40 managed on paper must be referred to. Therefore, the user 41 always keeps the latest configuration management book 40 at hand. Has to be prepared, and there is a problem that the operation is very troublesome and the management thereof is also difficult.

If the connection configuration of the device is changed, it is necessary to re-create the job control language and the like. If an incorrect cluster name is specified by the old configuration definition management book 40, an execution error occurs and the new Since the job 10 has to be resubmitted, there is a problem that a lot of trouble is required.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a means for automatically determining an execution cluster of a program by designating a device name and reducing a burden on a creator of a job control language or the like.

[Means for solving the problem]

 FIG. 1 shows a configuration example of the present invention.

In FIG. 1, reference numeral 10 denotes a job as a unit of work performed by a computer requested by a user, 11 denotes an FCMP, 12-1, 12-2,..., Clusters, and 13-1, 13-2,. Distributed OS basic mechanism that provides basic functions of one operating system, 14
Is an execution receiving unit that receives an execution request for a job or session, 15 is a configuration reference unit, 16 is a startup processing unit that starts a user program in a job or session, 17 is a configuration control table, 18 is a job or session, etc. , A configuration definition storage unit for storing the contents of a configuration control table 17 provided in an external storage device such as a magnetic disk device, 20 a device such as various peripheral devices, and 21 a device for each cluster. Represents the high-speed channel coupling processors.

FCMP11 is equipped with distributed OS basic mechanisms 13-1, 13-2,..., Each of which constitutes a distributed kernel type operating system, and has a plurality of clusters 12-1, 12- having processors forming an execution environment of programs. 2,... Are multiprocessors connected by a high-speed channel 21.

In the present invention, the configuration definition control table 17 storing the correspondence information between the cluster names for identifying the respective clusters 12-1, 12-2,...
The configuration definition storage unit is stored in a cluster for performing execution reception scheduling of a job or the like, for example, in the memory of the cluster 12-1.
Read from 19 and prepared.

The configuration definition reference unit 15 refers to the configuration control table 17 and performs a process of extracting a cluster name of a cluster to which the device is connected from a device name specified in a job or a session.

The execution reception unit 14 responds to the execution request of the program by the job or the like with the specified device name by the configuration definition reference unit 15.
The cluster name is obtained from the device name, and a process of calling the activation processing unit 16 is performed.

The activation processing unit 16 determines a cluster on which the user program 18 is to be executed in response to the activation request from the execution reception unit 14, and executes the distributed OS basic mechanism 13-1, 13-2,
, A process for requesting execution of the user program 18 is performed.

[Action]

The configuration definition control table 17 includes, for example, devices in the cluster 12-2.
When 20 is connected, its cluster name PM2 and device name L
Information indicating the correspondence with item 2 is stored.

When the user specifies a device name of a device to be used, for example, L2 in the job control language (JCL), and submits the job 10 to the cluster 12-1 where the execution receiving unit 14 exists, the user's work is It ends.

The execution receiving unit 14 determines whether the input job 10 has the device name specified, and if so, the configuration reference unit 15
Request to refer to the cluster name.

The configuration definition reference unit 15 refers to the configuration definition control table 17 and refers to the cluster name PM of the cluster to which the device having the device name L2 is connected.
2 is notified to the execution receiving unit 14 as a reference result.

The execution receiving unit 14 requests the activation processing unit 16 to execute the user program 18 in the cluster 12-2 having the cluster name PM2.

The start processing unit 16 communicates with the cluster 12 by message communication.
A request to start the user program 18 is made to the distributed OS basic mechanism 13-2.

By the above processing, the execution cluster of the program by the device name designation is automatically determined. For example, the user program 18 using the device name L2
2-2.

〔Example〕

FIG. 2 shows an example of a configuration control table used in the embodiment of the present invention, and FIG. 3 shows a processing flow of an embodiment of the present invention.

If you want to use a specific device, it is troublesome to specify the name after checking the name of the cluster connected from that device using the configuration definition management list, and change the connected cluster of the device. It lacks the flexibility to do so.

In order to deal with this, for example, a configuration definition control table 17 as shown in FIG. 2 is provided in the system to manage the correspondence between the device to be used and the cluster. As a result, the program execution processing by designating the device name is realized.

The configuration definition control table 17 is pointed out from the system resource table 30 for managing the resources of the system. In the example shown in FIG. 2, the device with the device name L1 is connected to the cluster with the cluster name PM1, the device with the device name L2 is connected with the cluster with the cluster name PM2,. Is connected to the cluster whose cluster name is PM4.

The configuration definition control table 17 is provided with a management area for the current number of programs to be executed and information on the multiplicity of executable programs for each cluster. Scheduling can be performed.

This embodiment relates to the process of referring to the configuration control table 17, but when the connection configuration of the device is changed, the configuration control table 17 is updated, and The results of changes, deletions, additions, etc. are reflected.

Next, the flow of processing according to an embodiment of the present invention will be described with reference to FIG. In the following description, ~ corresponds to the processing ~ shown in FIG.

A job execution request is accepted by inputting JCL or the like.

Determine whether a cluster name or device name has been specified in the JCL. If a cluster name is specified, the process proceeds.

When a device name is specified, the configuration definition reference unit 15 is called using the device name as a parameter.

The configuration definition reference unit 15 refers to the configuration control table 17 and
From the device name, the cluster name of the cluster to which the device is connected is determined, and the cluster name is notified to the caller. At this time, the multiplicity of executable programs and the number of currently executed programs are checked based on the configuration definition control table 17 shown in FIG. As an error return,
In this embodiment, there are the following cases.

-The device name (ΧΧ) does not exist.

-There is no room to execute the program in the cluster name (名).

When the configuration is returned from the configuration reference unit 15 with a return code indicating such an error content, an abnormal termination message is output and the processing is terminated.

When the cluster name is known, the start processing unit 16 executes the user program on the cluster having the cluster name.
Start 18

By using the configuration control table 17 as in this embodiment, the system can control the execution of the program on the most optimal cluster, so that the user can efficiently execute the program execution processing. become able to.

Although the execution of a program by a job has been described as an example, the present invention can be similarly applied to a program execution that can be grasped by concepts such as a session and a process.

〔The invention's effect〕

As described above, according to the present invention, the user does not need to be aware of the relative relationship between the cluster and the device when starting the program, and can easily execute the program execution process by specifying the device name. become. In particular, when the execution cluster is determined from the device name, the execution multiplicity is also checked, so that the execution of the program that cannot be executed immediately can be avoided in advance, and the user can efficiently execute the program execution processing. Can be performed.

[Brief description of the drawings]

1 is a configuration example of the present invention, FIG. 2 is an example of a configuration definition control table used in an embodiment of the present invention, FIG. 3 is a processing flow of an embodiment of the present invention, and FIG. Is shown. In the figure, 10 is a job, 11 is an FCMP, 12-1, 12-2 are clusters, 13
-1, 13-2 are distributed OS basic mechanisms, 14 is an execution receiving unit, 15 is a configuration definition reference unit, 16 is a startup processing unit, 17 is a configuration control table, 18 is a user program, 19 is a configuration storage unit, 20 indicates a device, and 21 indicates a high-speed channel.

Claims (1)

(57) [Claims] 1. A multiprocessor system in which a plurality of clusters each having a processor that forms a program execution environment are installed, each of which is equipped with a distributed kernel type operating system, and a cluster name for identifying the cluster and a connection to the cluster A control table that stores information that corresponds to the device name that identifies the device to be executed, the current number of programs that are running in that cluster, and the multiplicity of programs that can be run in that cluster. A control table reference unit that extracts the cluster name of the cluster to which the device is connected from the device name, checks the multiplicity of executable programs in the cluster, and checks the current number of programs to be executed. In response to the execution request, the above-mentioned control table reference section An execution receiving unit that obtains a cluster name to be executed; and a start processing unit that determines a program execution cluster based on the cluster name obtained from the device name and controls a program execution request in the cluster. A program execution schedule processing method, wherein a program execution cluster according to designation is automatically determined.