A pending tag system and method to maintain data coherence in a processing node during pending transactions in a transaction pipeline. A pending tag storage unit may be coupled to a cache controller and configured to store pending tags each indicativ…
A multiprocessing system having a plurality of processing nodes interconnected by an interconnect network. To optimize performance during spin-lock operations, a home agent prioritizes the servicing of read-to-own (RTO) transaction requests over the…
A symmetric multiprocessing system includes multiple processing units and corresponding instances of an adaptive partition processing scheduler. Each instance of the adaptive partition processing scheduler selectively allocates the respective process…
Within a multi-processing system including a plurality of processor cores 4, 6operating in accordance with coherent multi-processing, each of the cores includes a cache memory 10, 12 storing local copies of data values from a coherent memory region.…
5down votefavorite 2 I don't know how I modified a iOS SDK file, but Xcode say I did. Here is what they reported. fatal error: file '/Applications/Xcode 2.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk…
A cache coherence protocol facilitates a distributed cache coherency conflict resolution in a multi-node system to resolve conflicts at a home node. FIELD The invention relates to high-speed point-to-point link networks. More particularly, the invent…
COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION Hardware-based solutions are generally referred to as cache coherence protocols. These solutions provide dynamic recognition at run time of potential inconsistency conditi…
COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION Software cache coherence schemes attempt to avoid the need for additional hard-ware circuitry and logic by relying on the compiler and operating system to deal with the pr…
COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION In contemporary multiprocessor systems, it is customary to have one or two levels of cache associated with each processor. This organization is essential to achieve reason…
Textbook:<计算机组成与设计——硬件/软件接口>  HI<计算机体系结构——量化研究方法>          QR 最后一节来看看如何实现parallelism 在多处理器系统中,每个处理器(core)可能有自己专属的cache,然后多处理器共享memory.在这种情况下,当多个线程(核心)对同一个变量进行读写时,就会出现不同cache中该变量的值不一样的情况(取决于cache是write back还是write through,以及相关cacheline被evict的时间…