Invention Grant
- Patent Title: Method for processing error directory of node in CC-NUMA system, and node
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Application No.: US14746391Application Date: 2015-06-22
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Publication No.: US09652407B2Publication Date: 2017-05-16
- Inventor: Yongbo Cheng
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: CN201410289296 20140624
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F12/12 ; G06F12/128 ; G06F11/10 ; G06F12/0817 ; G06F12/0813 ; G06F12/121

Abstract:
A method for processing an error directory of a node in a cache coherence non-uniform memory access (CC-NUMA) system and a node are provided. The method effectively reduces a possibility of a breakdown of the system caused by accumulation of the error bits in the directory memory of the CC-NUMA system. The method comprises: when a quantity of bits of a correctable error of a directory stored in a directory memory of the node is greater than a preset threshold, controlling all processors in the CC-NUMA system to write dirty data in a corresponding cache back to a corresponding main memory, flush the dirty data, and directly flush clean data in the corresponding cache; and controlling the CC-NUMA system to enter a quiescent state, clearing a record stored in the directory memory to zero, and controlling, after the zero clearing is completed, the CC-NUMA system to exit the quiescent state.
Public/Granted literature
- US20150370712A1 METHOD FOR PROCESSING ERROR DIRECTORY OF NODE IN CC-NUMA SYSTEM, AND NODE Public/Granted day:2015-12-24
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