David Brian Glasco. Design and Analysis of Update-Based Cache Coherence Protocols for Scalable Shared-Memory Multiprocessors. PhD thesis, Stanford University, 1995.  Home/Search   Document Details and Download   Summary   Related Articles

....have also been proposed [37] While some studies show that distributed directory protocols Chapter 2. Communication Mechanisms 13 offer a performance benefit, as well as a cost savings [95] most studies conclude that centralized protocols perform as well as or better than distributed protocols [35, 37, 44]. In our experiments, we only consider fully mapped centralized protocols. The coherence protocol used in this study is similar to the one used by DASH [63, 64] and to the central directory protocol used by Thapar [95] Instead of showing a detailed state diagram for the protocol, we follow ....

....of the global shared memory (and its associated directory) and network interfaces. A stream transfer unit (STU) is also provided; as described in Chapter 3, the STU is responsible for transferring messages between the second level (L2) cache and the network. To avoid request reply deadlock [35, 65, 95], we provide two virtual networks, implemented via virtual channels [23] sharing the resources of a single physical network. Separate network interfaces, each with 32 words (256 bytes) of input and output buffer, are 56 Chapter 4. Base Performance Studies 57 CPU L1 Cache L2 Cache STU ....

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David Brian Glasco. Design and Analysis of Update-Based Cache Coherence Protocols for Scalable Shared-Memory Multiprocessors. PhD thesis, Stanford University, 1995.

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