Shared-Nothing MP 无共享多处理器

w3cstandard

Shared-Nothing MP

A shared-nothing MP has some of the following characteristics：Each processor is a stand-alone machine．

Processors share nothing；each one has its own caches，memory and disks．Also，each processor runs a copy of the operating system．Processors can be interconnected by a LAN if they are loosely coupled or interconnected by a switch if they are tightly coupled．Communication between processors is done via a message-passing library．

Example of a shared-nothing MP are in the IBM RS/ 6000 SP range，as well as Tandem，Teradata and most of the massively parallel machines，including Thinking Machines，Intel Touchstone，Ncube and so on．

无共享多处理器

无共享多处理器有以下一些特性：每个处理器都是一个单独的机器，各处理器都不共享；每个处理器都有自己的高速缓存、存储器和磁盘；另外，每个处理器都运行通过复制获得的操作系统。如果这些处理器间的耦合松散，则可用局域网互联；如果它们之间的耦合紧密，则可用交换机互联。处理器间的通信通过消息传送库完成。

IBM RS/6000 SP机型以及Tandem，Teradata和多数大规模并行机，包括Thinking Machines、Intel Touchstone、Ncube等都是无共享多处理器的例子。

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