CA2355065A1 - Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory - Google Patents

Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory Download PDF

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Publication number
CA2355065A1
CA2355065A1 CA002355065A CA2355065A CA2355065A1 CA 2355065 A1 CA2355065 A1 CA 2355065A1 CA 002355065 A CA002355065 A CA 002355065A CA 2355065 A CA2355065 A CA 2355065A CA 2355065 A1 CA2355065 A1 CA 2355065A1
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Canada
Prior art keywords
computer system
different partitions
partition
partitions
communicate
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.)
Granted
Application number
CA002355065A
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French (fr)
Other versions
CA2355065C (en
Inventor
Robert C. Gulick
Douglas E. Morrissey
Charles Raymond Caldarale
Bruce Alan Vessey
Craig F. Russ
Eugene W. Troxell
Hans Christian Mikkelsen
Sharon M. Mauer
Maureen P. Connell
James R. Hunter
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.)
Unisys Corp
Original Assignee
Unisys Corporation
Robert C. Gulick
Douglas E. Morrissey
Charles Raymond Caldarale
Bruce Alan Vessey
Craig F. Russ
Eugene W. Troxell
Hans Christian Mikkelsen
Sharon M. Mauer
Maureen P. Connell
James R. Hunter
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 Unisys Corporation, Robert C. Gulick, Douglas E. Morrissey, Charles Raymond Caldarale, Bruce Alan Vessey, Craig F. Russ, Eugene W. Troxell, Hans Christian Mikkelsen, Sharon M. Mauer, Maureen P. Connell, James R. Hunter filed Critical Unisys Corporation
Publication of CA2355065A1 publication Critical patent/CA2355065A1/en
Application granted granted Critical
Publication of CA2355065C publication Critical patent/CA2355065C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication
    • G06F9/544—Buffers; Shared memory; Pipes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication

Abstract

A computer system comprises a plurality of processing modules that can be configured into different partitions within the computer system, and a main memory. Each partition operates under the control of a separate operating system. At least one shared memory window is defined within the main memory to which multiple partitions have shared access, and each partition may also be assigned and exclusive memory window. Program code executing on different partitions enables those partitions to communicate with each other through the shared memory window. Means are also provided for mapping the physical address space of the processors in each partition to the respective exclusive memory windows assigned to each partition, so that the exclusive memory windows assigned to each partition appear to the respective operating systems executing on those partitions as if they all start at the same base address.
CA002355065A 1998-12-18 1999-12-17 Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory Expired - Fee Related CA2355065C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/215,424 1998-12-18
US09/215,424 US6314501B1 (en) 1998-07-23 1998-12-18 Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory
PCT/US1999/030437 WO2000036509A2 (en) 1998-12-18 1999-12-17 Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory

Publications (2)

Publication Number Publication Date
CA2355065A1 true CA2355065A1 (en) 2000-06-22
CA2355065C CA2355065C (en) 2004-03-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002355065A Expired - Fee Related CA2355065C (en) 1998-12-18 1999-12-17 Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory

Country Status (8)

Country Link
US (2) US6314501B1 (en)
EP (1) EP1145122B1 (en)
JP (2) JP2002532806A (en)
AT (1) ATE359550T1 (en)
BR (1) BR9916308A (en)
CA (1) CA2355065C (en)
DE (1) DE69935805T2 (en)
WO (1) WO2000036509A2 (en)

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