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1. 发明申请

US20160232107A1 SYSTEMS AND METHODS FOR COHERENCE IN CLUSTERED CACHE HIERARCHIES 审中-公开
标题翻译：集群高速缓存中的一致性的系统和方法
公开(公告)号：US20160232107A1
公开(公告)日：2016-08-11
申请号：US15015274
申请日：2016-02-04
申请人： Alberto ROS , Stefanos KAXIRAS
发明人： Alberto ROS , Stefanos KAXIRAS
IPC分类号： G06F12/10 , G06F12/08
CPC分类号： G06F12/1045 , G06F12/0815 , G06F12/084 , G06F12/0897 , G06F2212/1021 , G06F2212/6042 , G06F2212/684
摘要： According to embodiments described herein, the hierarchical complexity for coherence protocols associated with clustered cache architectures can be encapsulated in a simple function, i.e., that of determining when a data block is shared entirely within a cluster (i.e., a sub-tree of the hierarchy) and is private from the outside. This allows embodiments to eliminate complex recursive coherence operations that span the hierarchy and instead employ simple coherence mechanisms such as self-invalidation and write-through but which are restricted to operate where a data block is shared. Thus embodiments recognize that, in the context of clustered cache hierarchies, data can be shared entirely within one cluster but can be private (unshared) to this cluster when viewed from the perspective of other clusters. This characteristic of the data can be determined and then used to locally simplify coherence protocols.
摘要翻译：根据本文描述的实施例，与集群高速缓存架构相关联的一致性协议的分层复杂度可以被封装在简单的功能中，即，确定数据块何时完全在集群内共享（即，层级的子树）并且是外部私人的。这允许实施例消除跨层次的复杂递归相干运算，而是采用诸如自无效和直写之类的简单相干机制，但是限于在共享数据块的情况下操作。因此，实施例认识到，在集群缓存层次结构的上下文中，当从其他集群的角度观察时，数据可以在一个集群内完全共享，但是可以是私有（非共享）到该集群。可以确定数据的这种特性，然后用于本地简化相干协议。

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