Ring-based memory requests in a shared memory multi-processor
    3.
    发明授权
    Ring-based memory requests in a shared memory multi-processor 有权
    共享内存多处理器中的基于环的内存请求

    公开(公告)号:US06895477B2

    公开(公告)日:2005-05-17

    申请号:US10105972

    申请日:2002-03-25

    摘要: A system includes a plurality of processing clusters and a snoop controller adapted to service memory requests. The snoop controller and each processing cluster are coupled to a snoop ring. A first processing cluster forwards a memory request to the snoop controller for access to a memory location. In response to the memory request, the snoop controller places a snoop request on the snoop ring—calling for a change in ownership of the requested memory location. A second processing cluster receives the snoop request on the snoop ring. The second processing cluster generates a response to the snoop request. If the second processing cluster owns the requested memory location, the second processing cluster modifies ownership status of the requested memory location.

    摘要翻译: 系统包括多个处理集群和适于服务存储器请求的监听控制器。 窥探控制器和每个处理集群耦合到一个监听环。 第一个处理群集将存储器请求转发到窥探控制器以访问内存位置。 响应于存储器请求,窥探控制器在窥探环上发出窥探请求,呼叫所请求的存储器位置的所有权改变。 第二个处理集群在侦听环上接收到窥探请求。 第二个处理集群生成对窥探请求的响应。 如果第二处理集群拥有所请求的存储器位置,则第二处理集群修改所请求的存储器位置的所有权状态。