Multi-processor system and program for causing computer to execute controlling method of multi-processor system

• US 20070169126A1
• Filed: 01/10/2007
• Published: 07/19/2007
• Est. Priority Date: 01/16/2006
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Tanaka, Katsuya, Todoroki, Akinari
• Granted Patent: US 7,979,861 B2
• Time in Patent Office: Days
• US Class Current: 718/103
• CPC Class Codes: G06F 2209/483 Multiproc
• CPC Class Codes: G06F 2209/5021 Priority
• CPC Class Codes: G06F 9/4881 Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
• CPC Class Codes: G06F 9/5044 considering hardware capabilities

Abstract

A multi-processor system with a plurality of unit processors includes: a request accepting section for accepting a first request and a second request, wherein the first request is a request to execute a program that can be executed in any of said unit processors and the second request is a request to execute a program that can be executed only in a specified unit processor among said unit processors; and a unit processor allocating section for allocating the first request and the second request accepted by said request accepting section to said unit processors according to priority of the first request and the second request.

Claims

1. A multi-processor system with a plurality of unit processors, comprising:

a request accepting section for accepting a first request and a second request, wherein the first request is a request to execute a program that can be executed in any of said unit processors and the second request is a request to execute a program that can be executed only in a specified unit processor among said unit processors; and

a unit processor allocating section for allocating the first request and the second request accepted by said request accepting section to said unit processors according to priority of the first request and the second request.

2. The multi-processor system according to claim 1, wherein said unit processor allocating section allocates the first request and the second request to said one unit processor by comparing the priority between the first request and the second request.

3. The multi-processor system according to claim 1, wherein said unit processor allocating section allocates the second request in priority to the first request to the unit processor.

4. The multi-processor system according to claim 1, further comprising an allocation unit processor deciding section for deciding a unit processor that is allocate to said first request when the first request is executed.

5. The multi-processor system according to claim 1, further comprising an allocating unit processor setting section for previously setting a unit processor that is allocated to said second request.

6. The multi-processor system according to claim 1, wherein said unit processor allocating section allocates a request to execute a task to the unit processor.

7. The multi-processor system according to claim 1, wherein said unit processor allocating section allocates a request to execute an interruption that request to suspend the other tasks to said unit processor.

8. A program for causing a computer to execute a controlling method of the multi-processor system to be applied to the multi-processor system with a plurality of unit processors, comprising:

a request accepting step of accepting a first request and a second request, wherein the first request is a request to execute a program that can be executed in any of said unit processors and the second request is for accepting a request to execute a program that can be executed only in a specified unit processor among said unit processors; and

a unit processor allocating step of allocating the first request and the second request accepted at said request accepting step to said unit processors according to priority of the first request and the second request.