Distributed control method and apparatus for job execution

• US 5,642,508 A
• Filed: 05/31/1994
• Issued: 06/24/1997
• Est. Priority Date: 05/31/1993
• Status: Expired due to Term

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Miyazawa, Hiroshi
• Primary Examiner(s): Heckler, Thomas M.
• Assistant Examiner(s): BUTLER, DENNIS
• Application Number:
  US08/251,424
• Time in Patent Office: 1,120 Days
• Field of Search: 395/650, 395/674, 395/676, 364/230.3, 364/281.3
• US Class Current: 718/104
• CPC Class Codes: G06F 2209/5014 Reservation
• CPC Class Codes: G06F 2209/5018 Thread allocation
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals

Abstract

A system distributed control managing section 2, at the time of starting the execution of a job 12, generates a job control distributed managing section 3-1, and allocates a number of processes to it. A job control statement managing section 5, in advance of executing a program in the job 12, manages the processing to distribute a plurality of job control statements 12 into a plurality of processes for analysis and execution in parallel. A resource securement managing section 6, in advance of executing a program to be actuated by a program control statement 14, manages the processing to distribute a required plurality of program-used resources 15 into a plurality of processes for securing in parallel. A resource release managing section 7 manages the processing to distribute a plurality of program-used resources 15 whose use has been completed into a plurality of processes for releasing in parallel.

Claims

1. A distributed control method for job execution in a computer system which can co-execute a plurality of processing functions, said method comprising:

allocating a plurality of processes to secure, in parallel and in a distributed manner, in advance of the start of execution of a program to be actuated by a program control statement in a job, a plurality of resources scheduled for use by the program, a separate one of said plurality of processes being allocated to secure each of said plurality of resources.

2. A distributed control method for job execution in a computer system which can co-execute a plurality of processing functions, said method comprising:

allocating a plurality of processes to release, in parallel and in a distributed manner, at the time of ending an execution of a program actuated by a program control statement in a job, a plurality of resources used by the program, a separate one of said plurality of resources being allocated to release each of said plurality of resources.

3. A distributed control method for job execution in a computer system which can co-execute a plurality of processing functions, said method comprising at least two of the following three steps:

(1) distributing, in advance of the execution of a program in a job, a plurality of processes to a plurality of job control statements within a job for parallel analysis and execution, a separate one of said plurality of processes being distributed to each of said plurality of job control statements;

(2) distributing, in advance of the start of execution of a program to be actuated by a program control statement in a job a plurality of processes to a plurality of resources scheduled for use by the program for parallel securing, a separate one of said plurality of processes being distributed to each of said plurality of resources;

(3) distributing, at an end of execution of a program actuated by a program control statement in a job, a plurality of processes to a plurality of resources used by the program for parallel releasing, a separate one of said plurality of processes being distributed to each of said plurality of resources.

4. A distributed control method as claimed in claim 3, wherein a number of processes usable in the execution of each job is determined as designated by the user.

5. A distributed control method as claimed in claim 3, wherein the number of processes usable in the execution of each job is automatically determined according to a number of resources required by each job, said number of resources being determined by analysis of said job control statements and a number of job control statements of each job.

6. A distributed control method as claimed in claim 4, wherein individual ones of a plurality of processes usable in the execution of each job are allocated to one of said three distributing steps for its exclusive use.

7. A distributed control method as claimed in claim 5, wherein individual ones of a plurality of processes usable in the execution of each job can be commonly used in any of said three distributing steps.

8. A distributed control method as claimed in claim 5, wherein individual ones of a plurality of processes usable in the execution of each job can be commonly used in any of said three distributing steps.

9. A distributed control apparatus for job execution in a computer system which can co-execute a plurality of processing functions, said apparatus comprising:

a system distributed control managing section for managing a system maximum distributable number, said maximum distributable number being a number of processes allocable for distributed control in job execution in the whole computer system;

upon start of execution of each job, for generating a job control distributed managing section and allocating it to the job;

at the same time allocating a number of processes to said job control distributed managing section; and

upon completion of the job, eliminating that job control distributed managing section;

said job control distributed managing section having at least one of the following three managing sections;

a job control statement managing section for managing processing to distribute, in advance of the execution of a program in a job, a plurality of processes to a plurality of job control statements for parallel analysis and execution a separate one of said plurality of processes being distributed to each of said plurality of job control statements;

a resource securement managing section for managing processing to distribute, in advance of a start of execution of a program to be actuated by a program control statement in a job, a plurality of processes to a plurality of resources scheduled for use by the program for parallel securing, a separate one of said plurality of processes being distributed to each of said plurality of resources to be secured; and

a resource release managing section for managing processing to distribute, at an end of execution of program actuated by a program control statement in a job, a plurality of processes to a plurality of resources used by the program for parallel releasing, a separate one of said plurality of processes being distributed to each of said plurality of resources to be released.