[특허]Multi-processor system having shared memory for storing the communication information used in communicating between proc

Multi-processor system having shared memory for storing the communication information used in communicating between proc 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-012/08 G06F-013/00
출원번호	US-0898688 (1992-06-15)
우선권정보	JP-0170548 (1991-06-15)
발명자 / 주소	Kitano Masahiro (Hiratsuka JPX) Ohfusa Yoshitaka (Yokohama JPX) Kohda Katsuya (Yokohama JPX) Sasaki Keiichi (Hadano JPX) Okura Hiroyuki (Hadano JPX) Takeda Katsumi (Hadano JPX)
출원인 / 주소	Hitachi, Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 38 인용 특허 : 0

초록 ▼

An information processing system comprises: plural processors; a shared memory connected to the plurality of processors for enabling communication between the processors; a unit disposed in the shared memory for storing information for specifying a processor connected thereto; and a unit for checking, when a first processor communicates with a second processor, whether or not the first and second processors are connected to the shared memory for direct access thereto by referring to the information storing means. A method of communication between processors used with a multiprocessor system, comprises the steps of: storing information for specifying a processor connected to the shared memory for direct access thereto in a predetermined register of the shared memory; feeding a communication instruction for instructing a first processor to communicate with a second processor via the shared memory; checking, in response to the communication instruction, whether or not the first and second processors are connected to the shared memory to enable direct access; storing communication information from the first processor in the shared memory, in response to confirmation that the first and second processors are connected to the shared memory; feeding a communication read interruption from the shared memory to the second processor; and reading out, in response to the communication read interruption, the communication information from the shared memory to feed the communication information to the second processor.

대표청구항 ▼

A method of communication between processors used with an information processing system having a plurality of processors and a plurality of shared memories connected to said plurality of processors, said method comprising the steps of: storing information from a processor for specifying which of said plurality of processors is connected to said shared memories to be directly accessible from another processor, into register means when said system is started by turning on a power supply to said system, or when said system is started just after connection paths between said shared memories and said processors are changed; feeding a communication instruction from one of said processors to a specified one of said shared memories for indicating that said one of said processors communicates with another processor via said specified shared memory; checking said information stored in said register means by said specified shared memory, in response to said communication instruction, and confirming by said specified shared memory that said one processor and said another processor are connected to said specified shared memory such that said specified shared memory is directly accessible from either of said one processor and said another processor; storing communication information from said one processor into a memory area of said specified shared memory, after confirming that said one processor and said another processor are connected to said specified shared memory such that said specified shared memory is directly accessible from either of said one processor and said another processor; feeding a communication read interruption from said specified shared memory to said another processor; and reading out, in response to said communication read interruption, said communication information from said memory area of said specified shared memory by said another processor and storing said communication information in a primary storage of said another processor.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Multi-processor system having shared memory for storing the communication information used in communicating between proc 원문보기

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Multi-processor system having shared memory for storing the communication information used in communicating between proc 원문보기

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이 특허를 인용한 특허 (38)

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