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公开(公告)号:US20070055825A1
公开(公告)日:2007-03-08
申请号:US10468995
申请日:2002-02-25
申请人: Matthias Blumrich , Dong Chan , Paul Coteus , Alan Gata , Mark Giampapa , Philip Heidelberger , Dirk Hoenicke , Martin Ohmacht
发明人: Matthias Blumrich , Dong Chan , Paul Coteus , Alan Gata , Mark Giampapa , Philip Heidelberger , Dirk Hoenicke , Martin Ohmacht
IPC分类号: G06F13/28
CPC分类号: H05K7/20836 , F24F11/77 , G06F9/52 , G06F9/526 , G06F15/17381 , G06F17/142 , G09G5/008 , H04L7/0338
摘要: A method and apparatus for managing coherence between two processors of a two processor node of a multi-processor computer system. Generally the present invention relates to a software algorithm that simplifies and significantly speeds the management of cache coherence in a message passing parallel computer, and to hardware apparatus that assists this cache coherence algorithm. The software algorithm uses the opening and closing of put/get windows to coordinate the activated required to achieve cache coherence. The hardware apparatus may be an extension to the hardware address decode, that creates, in the physical memory address space of the node, an area of virtual memory that (a) does not actually exist, and (b) is therefore able to respond instantly to read and write requests from the processing elements.
摘要翻译: 一种用于管理多处理器计算机系统的两个处理器节点的两个处理器之间的相干性的方法和装置。 通常,本发明涉及一种软件算法,其简化并显着加速了传送并行计算机的消息中的高速缓存一致性的管理以及辅助该高速缓存一致性算法的硬件设备。 软件算法使用put / get窗口的打开和关闭来协调激活的所需要的,以实现缓存一致性。 硬件设备可以是硬件地址解码的扩展,其在节点的物理存储器地址空间中创建(a)实际不存在的虚拟存储器的区域,并且(b)因此能够立即响应 从处理元素读取和写入请求。