JPS5537641A - Synchronization system for doubled processor - Google Patents

Synchronization system for doubled processor

Info

Publication number
JPS5537641A
JPS5537641A JP11030378A JP11030378A JPS5537641A JP S5537641 A JPS5537641 A JP S5537641A JP 11030378 A JP11030378 A JP 11030378A JP 11030378 A JP11030378 A JP 11030378A JP S5537641 A JPS5537641 A JP S5537641A
Authority
JP
Japan
Prior art keywords
processor
memory
stand
cpu12
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11030378A
Other languages
Japanese (ja)
Inventor
Masamichi Iwama
Satoru Tsushima
Koichi Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11030378A priority Critical patent/JPS5537641A/en
Priority to GB7930110A priority patent/GB2032149B/en
Priority to CA000334917A priority patent/CA1145477A/en
Priority to DE2935841A priority patent/DE2935841C2/en
Priority to FR7922466A priority patent/FR2435757B1/en
Publication of JPS5537641A publication Critical patent/JPS5537641A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2097—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements maintaining the standby controller/processing unit updated
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component

Abstract

PURPOSE: To alternate in-use and stand-by systems easily and definitely by sectioning processing steps of a job by break points BP, and then by transfering the address of a memory and data on each reach to a break point BP to the memory of the stand-by system.
CONSTITUTION: In-use processor 11 sections the execution of a processing program into processing steps by preset BPs and at each BP, sddresses A1WAn of a process result and data D1WDn are transferred to stand-by processor 11'. Addresses A1WAn assign memory positions of memory 13' of the stand-by system and processor 11' performs write operations 1W(n). Once processor 11 gets out of order, processor fault supervisory circuit 16 detects it and CPU12' is informed of it thorugh CPU12 and communication controller 14. Then, CPU12' can read the newest data in memory 13' from the restart address of the processing program equivalent to BP. In the simple constitution like this, a synchronization system can be obtained which performs switching among processors basing upon a complete parallel simultaneous operation system by a small-scale program.
COPYRIGHT: (C)1980,JPO&Japio
JP11030378A 1978-09-08 1978-09-08 Synchronization system for doubled processor Pending JPS5537641A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP11030378A JPS5537641A (en) 1978-09-08 1978-09-08 Synchronization system for doubled processor
GB7930110A GB2032149B (en) 1978-09-08 1979-08-30 Transferring from working to standby processor on fault
CA000334917A CA1145477A (en) 1978-09-08 1979-08-31 Method for carrying out synchronous operation in a duplex-processor system
DE2935841A DE2935841C2 (en) 1978-09-08 1979-09-05 Multiprocessor system
FR7922466A FR2435757B1 (en) 1978-09-08 1979-09-07 METHOD FOR PROVIDING SYNCHRONOUS OPERATION IN A MULTI-PROCESSING SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11030378A JPS5537641A (en) 1978-09-08 1978-09-08 Synchronization system for doubled processor

Publications (1)

Publication Number Publication Date
JPS5537641A true JPS5537641A (en) 1980-03-15

Family

ID=14532271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11030378A Pending JPS5537641A (en) 1978-09-08 1978-09-08 Synchronization system for doubled processor

Country Status (5)

Country Link
JP (1) JPS5537641A (en)
CA (1) CA1145477A (en)
DE (1) DE2935841C2 (en)
FR (1) FR2435757B1 (en)
GB (1) GB2032149B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127301A (en) * 1984-07-16 1986-02-06 Ishikawajima Harima Heavy Ind Co Ltd Electric hydraulic servo control device

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395753A (en) * 1980-06-26 1983-07-26 Gte Automatic Electric Labs Inc. Allocation controller providing for access of multiple common resources by a plurality of central processing units
US4374414A (en) * 1980-06-26 1983-02-15 Gte Automatic Electric Labs Inc. Arbitration controller providing for access of a common resource by a duplex plurality of central processing units
US4363096A (en) * 1980-06-26 1982-12-07 Gte Automatic Electric Labs Inc. Arbitration controller providing for access of a common resource by a duplex plurality of central processing units
US4394728A (en) * 1980-06-26 1983-07-19 Gte Automatic Electric Labs Inc. Allocation controller providing for access of multiple common resources by a duplex plurality of central processing units
US4590554A (en) * 1982-11-23 1986-05-20 Parallel Computers Systems, Inc. Backup fault tolerant computer system
GB8310003D0 (en) * 1983-04-13 1983-05-18 Gen Electric Co Plc Input signal handling apparatus
FR2551897A1 (en) * 1983-09-13 1985-03-15 Westinghouse Electric Corp APPARATUS AND METHOD FOR REALIZING REDUNDANCY IN A PROCESS CONTROL SYSTEM, DISTRIBUTING
GB2237904B (en) * 1984-02-28 1991-10-02 Lucas Ind Plc Digital control system
US4823256A (en) * 1984-06-22 1989-04-18 American Telephone And Telegraph Company, At&T Bell Laboratories Reconfigurable dual processor system
WO1986004432A1 (en) * 1985-01-22 1986-07-31 National Can Corporation Redundant control system for automatic forming machine
US4665520A (en) * 1985-02-01 1987-05-12 International Business Machines Corporation Optimistic recovery in a distributed processing system
US5067080A (en) * 1985-04-11 1991-11-19 Lucas Industries Public Limited Company Digital control system
DE3518105A1 (en) * 1985-05-21 1986-11-27 Alfred Teves Gmbh, 6000 Frankfurt METHOD AND CIRCUIT ARRANGEMENT FOR SUPPRESSING SHORT-TERM FAULTS
US5155678A (en) * 1985-10-29 1992-10-13 International Business Machines Corporation Data availability in restartable data base system
US4847749A (en) * 1986-06-13 1989-07-11 International Business Machines Corporation Job interrupt at predetermined boundary for enhanced recovery
US5079740A (en) * 1987-01-12 1992-01-07 Ncr Corporation System and method of providing an automatic back-up primary terminal for a cluster of secondary terminals
GB2217487B (en) * 1988-04-13 1992-09-23 Yokogawa Electric Corp Dual computer system
US4959768A (en) * 1989-01-23 1990-09-25 Honeywell Inc. Apparatus for tracking predetermined data for updating a secondary data base
US4958270A (en) * 1989-01-23 1990-09-18 Honeywell Inc. Method for control data base updating of a redundant processor in a process control system
JP2960560B2 (en) 1991-02-28 1999-10-06 株式会社日立製作所 Microelectronic equipment
JP3047275B2 (en) * 1993-06-11 2000-05-29 株式会社日立製作所 Backup switching control method
US5649089A (en) * 1994-11-30 1997-07-15 Motorola, Inc. Method and apparatus for maintaining a redundant database system
EP1185928A1 (en) 1998-12-16 2002-03-13 Kent Ridge Digital Labs Process oriented computing environment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130543A (en) * 1976-04-27 1977-11-01 Toshiba Corp Multi-computer system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163859A (en) * 1968-07-19 1969-09-10 Ibm Data Processing Systems
US4070630A (en) * 1976-05-03 1978-01-24 Motorola Inc. Data transfer synchronizing circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130543A (en) * 1976-04-27 1977-11-01 Toshiba Corp Multi-computer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127301A (en) * 1984-07-16 1986-02-06 Ishikawajima Harima Heavy Ind Co Ltd Electric hydraulic servo control device

Also Published As

Publication number Publication date
FR2435757A1 (en) 1980-04-04
DE2935841A1 (en) 1980-07-24
GB2032149A (en) 1980-04-30
DE2935841C2 (en) 1985-09-19
CA1145477A (en) 1983-04-26
FR2435757B1 (en) 1986-09-26
GB2032149B (en) 1983-03-23

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