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1. 发明授权

EP0817063B1 Encoding method for directory state in cache coherent distributed shared memory system 失效
标题翻译：编码的目录状态的方法与相干缓冲器公共的共享存储器系统
公开(公告)号：EP0817063B1
公开(公告)日：2003-12-17
申请号：EP97304387.0
申请日：1997-06-23
申请人： Sun Microsystems, Inc.
发明人： Guzovskiy, Aleksandr , Zak, Robert C., Jr. , Bromley, Mark
IPC分类号： G06F12/08
CPC分类号： G06F12/0826

2. 发明公开

EP0817063A3 Encoding method for directory state in cache coherent distributed shared memory system 失效
标题翻译：编码的目录状态的方法与相干缓冲器公共的共享存储器系统
公开(公告)号：EP0817063A3
公开(公告)日：1999-01-27
申请号：EP97304387.0
申请日：1997-06-23
申请人： SUN MICROSYSTEMS, INC.
发明人： Guzovskiy, Aleksandr , Zak, Robert C., Jr. , Bromley, Mark
IPC分类号： G06F12/08
CPC分类号： G06F12/0826
摘要： A directory system directs cache line access requests from processors in a multi-processor system with a shared memory system through a cache line states directory. The cache line states directory stores a state value that identifies a cache line shared states word. The cache line shared states word identifies the processor that owns the cache line and the state of access of each processor that shares access to the cache line. A state value encoder encodes a cache line shared state word into a state value and loads the state value into the cache line states directory. A state value decoder decodes the state value into a cache line shared state word for use by the cache line directory system in retrieving the cache line. A plurality of cache line tables are used with each cache line assigned to one of the tables. The cache line table stores a state value for each cache line shared states word stored in the table. The encoder and decoder perform a table look-up to convert between a cache line shared state word and a state value. Each of said cache line tables stores an ordered list of cache line shared state words and their corresponding state values. The ordered list is a list of cache line shared state words that have the most significance to the multi-processor system.

3. 发明公开

EP0817063A2 Encoding method for directory state in cache coherent distributed shared memory system 失效
标题翻译：编码的目录状态的方法与相干缓冲器公共的共享存储器系统
公开(公告)号：EP0817063A2
公开(公告)日：1998-01-07
申请号：EP97304387.0
申请日：1997-06-23
申请人： SUN MICROSYSTEMS, INC.
发明人： Guzovskiy, Aleksandr , Zak, Robert C., Jr. , Bromley, Mark
IPC分类号： G06F12/08
CPC分类号： G06F12/0826
摘要： A directory system directs cache line access requests from processors in a multi-processor system with a shared memory system through a cache line states directory. The cache line states directory stores a state value that identifies a cache line shared states word. The cache line shared states word identifies the processor that owns the cache line and the state of access of each processor that shares access to the cache line.
A state value encoder encodes a cache line shared state word into a state value and loads the state value into the cache line states directory. A state value decoder decodes the state value into a cache line shared state word for use by the cache line directory system in retrieving the cache line. A plurality of cache line tables are used with each cache line assigned to one of the tables. The cache line table stores a state value for each cache line shared states word stored in the table. The encoder and decoder perform a table look-up to convert between a cache line shared state word and a state value. Each of said cache line tables stores an ordered list of cache line shared state words and their corresponding state values. The ordered list is a list of cache line shared state words that have the most significance to the multi-processor system.
摘要翻译：从处理器通过一个高速缓存行的目录系统ausrichtet高速缓存线的访问请求与共享存储器系统的多处理器系统规定的目录。高速缓存行规定目录存储的状态值没有标识的缓存行的共享状态字。高速缓存行的共享状态字标识处理器确实拥有高速缓存行，每个处理器的访问的状态的确股进入高速缓存行。状态值编码器编码的高速缓存线的共享状态字到状态值并加载状态值到高速缓存线状态的目录。状态值译码器中检索所述高速缓存线的状态值转换成用于由高速缓存行目录系统中使用的高速缓存线的共享状态字进行解码。高速缓存行的表的多个被用于与分配给一个表的每个高速缓存行。该高速缓存线表存储用于存储在所述表中的每个高速缓存线的共享状态字的状态值。该编码器和解码器执行表查找以高速缓存行共享状态字和一个状态值之间进行转换。每个所述高速缓存行的表存储在缓存行的共享状态字和它们对应的状态值有序列表。有序列表的是高速缓存线的共享状态字的列表thathave到多处理器系统中最显着性。

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