WO2004104794A3 - Methods and apparatus for providing cache state information - Google Patents

Methods and apparatus for providing cache state information Download PDF

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Publication number
WO2004104794A3
WO2004104794A3 PCT/US2004/016111 US2004016111W WO2004104794A3 WO 2004104794 A3 WO2004104794 A3 WO 2004104794A3 US 2004016111 W US2004016111 W US 2004016111W WO 2004104794 A3 WO2004104794 A3 WO 2004104794A3
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WO
WIPO (PCT)
Prior art keywords
state information
methods
remote data
remote
cache state
Prior art date
Application number
PCT/US2004/016111
Other languages
French (fr)
Other versions
WO2004104794A2 (en
Inventor
David B Glasco
Original Assignee
Newisys Inc
David B Glasco
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 Newisys Inc, David B Glasco filed Critical Newisys Inc
Priority to JP2006533313A priority Critical patent/JP2007501479A/en
Priority to EP04753011A priority patent/EP1629387A4/en
Priority to CA002525951A priority patent/CA2525951A1/en
Publication of WO2004104794A2 publication Critical patent/WO2004104794A2/en
Publication of WO2004104794A3 publication Critical patent/WO2004104794A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
    • G06F12/0815—Cache consistency protocols
    • G06F12/0817—Cache consistency protocols using directory methods

Abstract

According to the present invention, methods and apparatus are provided for increasing the efficiency of data access in a multiple processor, multiple cluster system. Mechanisms for allowing a variety of transactions to complete locally are implemented by providing remote data caches associated with the various clusters in the system. The remote data caches receive data and state information for memory lines held in remote clusters. State information is provided to the remote data cache using various mechanisms including a coherence directory and augmented source done messages.
PCT/US2004/016111 2003-05-20 2004-05-20 Methods and apparatus for providing cache state information WO2004104794A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006533313A JP2007501479A (en) 2003-05-20 2004-05-20 Method and apparatus for providing cache status information
EP04753011A EP1629387A4 (en) 2003-05-20 2004-05-20 Methods and apparatus for providing cache state information
CA002525951A CA2525951A1 (en) 2003-05-20 2004-05-20 Methods and apparatus for providing cache state information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/442,845 2003-05-20
US10/442,845 US7334089B2 (en) 2003-05-20 2003-05-20 Methods and apparatus for providing cache state information

Publications (2)

Publication Number Publication Date
WO2004104794A2 WO2004104794A2 (en) 2004-12-02
WO2004104794A3 true WO2004104794A3 (en) 2005-05-06

Family

ID=33450304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/016111 WO2004104794A2 (en) 2003-05-20 2004-05-20 Methods and apparatus for providing cache state information

Country Status (6)

Country Link
US (1) US7334089B2 (en)
EP (1) EP1629387A4 (en)
JP (1) JP2007501479A (en)
CN (1) CN100437521C (en)
CA (1) CA2525951A1 (en)
WO (1) WO2004104794A2 (en)

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Also Published As

Publication number Publication date
EP1629387A4 (en) 2008-10-29
US20040236912A1 (en) 2004-11-25
WO2004104794A2 (en) 2004-12-02
CA2525951A1 (en) 2004-12-02
JP2007501479A (en) 2007-01-25
EP1629387A2 (en) 2006-03-01
US7334089B2 (en) 2008-02-19
CN1829978A (en) 2006-09-06
CN100437521C (en) 2008-11-26

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