Information processing device, and CPU, method of startup and program product of information processing device

• US 20070033299A1
• Filed: 07/31/2006
• Published: 02/08/2007
• Est. Priority Date: 08/03/2005
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Arai, Hiroki
• Application Number:
  US11/495,733
• Publication Number:
  US 20070033299A1
• Time in Patent Office: Days
• US Class Current: 710/10
• CPC Class Codes: G06F 15/177 Initialisation or configuration control processor initialisation G06F9/4405
• CPC Class Codes: G06F 9/4405 Initialisation of multiprocessor systems
• CPC Class Codes: H04N 1/00954 Scheduling operations or managing resources H04N1/0096 takes precedence; program initiating or switching G06F9/48; allocation of computer resources G06F9/50
• CPC Class Codes: H04N 1/0096 Simultaneous or quasi-simultaneous functioning of a plurality of operations H04N1/32545 takes precedence; multiprogramming arrangements of computers G06F9/46
• CPC Class Codes: H04N 1/32561 using a programmed control device, e.g. a microprocessor
• CPC Class Codes: H04N 1/32587 Controller
• CPC Class Codes: H04N 1/32593 Using a plurality of controllers, e.g. for controlling different interfaces

Abstract

In the information processing device of the invention, the region to be scanned is divided and assigned into as many parts as there are CPUs installed in the information processing device, each CPU scans hardware resources under its control respectively, and the main CPU integrates the scanning result at the end. According to the invention, the time necessary to scan the hardware resource can be reduced, and the startup time of the information processing device can also be reduced.

Claims

1. An information processing device comprising:

a plurality of CPUs including a main CPU; and

hardware resources under control of said plurality of CPUs, wherein

the main CPU divides and assigns the region to be scanned into as many parts as there are CPUs installed in said information processing device, said plurality of CPUs scan hardware resources under its control respectively, and said main CPU integrates the result of the hardware resources scanning obtained from said plurality of CPUs.

2. The information processing device according to claim 1, wherein

said plurality of CPUs assign hardware resource definition information to every hardware resource under its control respectively at the time of scanning of said hardware resource, and said main CPU re-assigns said hardware resource definition information after integrating said scanning result.

3. A main CPU installed in an information processing device together with a plurality of other CPUs which scan hardware resources under its control respectively, wherein

the CPU divides and assigns the region to be scanned into as many parts as there are CPUs installed in said information processing device, the CPUs scan hardware resources under its control respectively, and the main CPU integrates the result of hardware resource scanning obtained from said plurality of other CPUs.

4. The main CPU of claim 3 wherein

after said integration of the scanning result, other CPU reassigns the hardware resource definition information assigned to each hardware resource.

5. A method to startup an information processing device having a plurality of CPUs including a main CPU, and hardware resources under control of said plurality of CPUs,

dividing and assigning the region to be scanned into as many parts as there are CPUs installed on said information processing device;

allowing said plurality of CPUs to scan the hardware resources under its control respectively; and

allowing the main CPU to integrate the scanning result obtained from the plurality of CPUs.

6. The startup method according to claim 5, further comprising:

allowing each CPU to assign hardware resource definition information to each hardware resource; and

allowing the main CPU to reassign the hardware resource definition information after integration of the scanning result.

7. A program product wherein

said program product, when executed in an information processing device, makes a main CPU of an information processing device divide and assign the region to be scan into as many parts as there are CPUs installed in the information processing device, makes each CPU of the information processing device scan hardware resources under its control respectively, and makes the main CPU integrate the scanning result.

8. The program product according to claim 7 wherein

said program product, when executed in a computer, makes each CPU of an information processing device assign hardware resource definition information to each hardware resource, makes the main CPU integrate said scanning result, and makes the main CPU reassign the hardware resource information.