Unlock instant, AI-driven research and patent intelligence for your innovation.

Information processing system and system controller

A technology for information processing systems and system controllers, applied in memory systems, electrical digital data processing, instruments, etc., can solve problems such as not being able to fully utilize the performance of CPU chips, and achieve the effect of improving processing capabilities

Inactive Publication Date: 2013-01-30
FUJITSU LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when CPU chips with different cache capacities are mixed, the busy monitoring range of all CPU chips is set to match the CPU chip with the smallest cache memory capacity, so there is a possibility that the large cache memory capacity cannot be fully utilized. The problem of the performance of the CPU chip

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Information processing system and system controller
  • Information processing system and system controller
  • Information processing system and system controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Hereinafter, examples of embodiments will be described in the order of an information processing system, cache synchronization control of an information processing system, a system controller, an address contention check unit, a cache synchronization process, a dynamic cache synchronization process, and other embodiments. The information processing system and the system controller are not limited to this embodiment.

[0032] (Information Processing System)

[0033] figure 1 It is a block diagram of the information processing system of embodiment. figure 2 yes figure 1 Block diagram of the system board. figure 1 The information processing system in the term refers to a server system in which computers are connected to a network. exist figure 1 Among them, the server system 1 has a plurality of system boards (SB: System Board) 1A-1P as a processing device, a management board (MMB: ManageMent Board) 2 as a system control device (SVP: SerVice Processor), and a crossba...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an information processing system and a system controller. The throughput of a CPU is improved in a system wherein a system controller, which connects a plurality of CPUs, controls the cache synchronization. A system having a system controller (12) which connects a plurality of CPU units (10-0 - 10-3) with differing cache memory sizes and which controls cache synchronization, the system comprises a cache synchronization unit (54) which monitors the address conflict between a first generated request and a second generated request; and a setting unit (56) which sets the conflict monitoring range of the first generated request and the second generated request for each size of cache memory of each CPU unit. Therefore even if CPU units of differing cache sizes are mixed together, the throughput of the CPU unit with the largest cache size can be improved.

Description

technical field [0001] The present invention relates to an information processing system and a system controller. Background technique [0002] Parallel processing effectively improves the processing speed of the information processing system. In a parallel processing system, a plurality of arithmetic processing devices (CPU: Central Processing Unit: central processing unit) share processing. In addition, in order to increase the processing speed of the CPU, a cache memory (Cache Memory) is provided between the CPU and the main storage device. The cache memory is composed of a high-speed and small-capacity memory that copies and holds data to be accessed by the CPU, its address, status, etc., among data stored in the main storage device. The cache memory inputs and outputs data instead of the main storage device that the CPU should normally access. [0003] Since the cache memory automatically saves data and replaces the main storage device, the program of the CPU does no...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/08
CPCG06F12/0806G06F12/0855G06F12/08G06F12/0828G06F12/0846G06F13/1689G06F13/1694G06F12/0815G06F9/38G06F13/14
Inventor 金野雄次村上浩
Owner FUJITSU LTD