Invention Grant
- Patent Title: Target cache line arbitration within a processor cluster
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Application No.: US15380082Application Date: 2016-12-15
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Publication No.: US10310982B2Publication Date: 2019-06-04
- Inventor: Deanna Postles Dunn Berger , Johnathon J. Hoste , Pak-kin Mak , Arthur J. O'Neill, Jr. , Robert J. Sonnelitter, III
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent William Kinnaman
- Main IPC: G06F12/14
- IPC: G06F12/14 ; G06F12/0862 ; G06F12/0853

Abstract:
A computer-implemented method for managing cache memory in a distributed symmetric multiprocessing computer is described. The method may include receiving, at a first central processor (CP) chip, a fetch request from a first chip. The method may further include determining via address compare mechanisms on the first CP chip whether one or more of a second CP chip and a third CP chip is requesting access to a target line. The first chip, the second chip, and the third chip are within the same chip cluster. The method further includes providing access to the target line if both of the second CP chip and the third CP chip have accessed the target line at least one time since the first CP chip has accessed the target line.
Public/Granted literature
- US20180173630A1 TARGET CACHE LINE ARBITRATION WITHIN A PROCESSOR CLUSTER Public/Granted day:2018-06-21
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