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Directory-based Cache Coherence:
Special Topics
Sequent NUMA-Q
SCI protocol
Directory overhead
Cache overhead
Handling read miss
Handling write miss
Handling writebacks
Roll-out protocol
Snoop interaction
Protocol processor
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[From Chapter 8 of Culler, Singh, Gupta]
[SGI Origin 2000 material taken from Laudon and Lenoski, ISCA 1997]
[GS320 material taken from Gharachorloo et al., ASPLOS 2000]
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