Memory consistency是一个架构"specification",规定了“ISA允许的正确行为”,而cache coherence是一个"means",是支持consistency以及保证shared memory程序正确运行的机制。 1.1 Consistency (a.k.a., memory consistency, memory consistency model, or m
关键词:computer architecture(计算机体系结构), memory consistency(内存连贯性[1]), cache coherence(缓存一致性[1]), shared memory(共享内存), memory systems(内存系统), multicore processor(多核处理器), heterogeneous architecture(异构架构), GPU(图形处理单元), accelerators(加速器[2]), semantics(语义学...
Memory Consistency and Event Ordering in Scalable Shared-Memory Multiprocessors. In Proc. of the 17th Annual Int'l Symp. on Computer Architecture , pages 15{26, May 1990.Kourosh Gharachorloo, Daniel Lenoski, James Laudon, Phillip Gibbons, Anoop Gupta, and John Hennessy. Memory consistency and ...
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The customary approach to designing and proving the correctness of multiprocess algorithms for such a computer assumes that the following condition is satisfied: the result of any execution is the same as if the operations of all the processors were executed in some sequential order, and the operat...
This chapter delves into memory consistency models (a.k.a. memory models) that define the behavior of shared memory systems for programmers and implementors. These models define correctness so that programmers know what to expect and implementors know wh
The way data is written to the cache impacts data consistency and efficiency. For example, when usingwrite-through, more writing needs to happen, which causes latency upfront. When usingwrite-back, operations may be more efficient, but data may not be consistent between the main and cache me...
A Primer on Memory Consistency and Cache Coherence Second Edition (Synthesis Lectures on Computer Architecture) (Vijay Nagarajan 下载积分: 5000 内容提示: Synthesis Lectures onComputer ArchitectureNatalieEnrightJerger&MargaretMartonosi,SeriesEditors 文档...
For example, a multiple processor system might specify: “The result of a read will be the value of the latest write if that write was performed by the same processor.” There is an entire literature of “data consistency models” that explores the detailed properties of different memory ...
Gharachorloo et al., “Memory Consistency and Event Ordering in Scalable Shared-Memory Multiprocessors”, The Proceedings of the 17th International Symposium on Computer Architecture, pp. 15-26, May 1990. ;International Symposium on Computer Architecture, pp. 15-26, May 1990. Gharachorloo et al...