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CS136, Advanced Architecture

CS136, Advanced Architecture

CS136, Advanced Architecture. Directory-Based Cache Coherence (more or less, with some inappropriate other topics). Implementation Complications. Write Races: Cannot update cache until bus is obtained Otherwise, another processor may get bus first, and then write the same cache block!

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693 views • 55 slides
CS136, Advanced Architecture

CS136, Advanced Architecture

CS136, Advanced Architecture. Directory-Based Cache Coherence (more or less, with some inappropriate other topics). Implementation Complications. Write Races: Cannot update cache until bus is obtained Otherwise, another processor may get bus first, and then write the same cache block!

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661 views • 55 slides
Chapter 8: Cache Coherents in Scalable Multiprocessors

Chapter 8: Cache Coherents in Scalable Multiprocessors

Chapter 8: Cache Coherents in Scalable Multiprocessors. Outline. Approaches to scalable coherence hierarchical directory-based Directory Protocols basic operation flat vs. hierarchical directories flat schemes: memory-based vs. cache-based reducing directory storage overhead

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488 views • 39 slides
CS 252 Graduate Computer Architecture Lecture 13: Multithreading

CS 252 Graduate Computer Architecture Lecture 13: Multithreading

CS 252 Graduate Computer Architecture Lecture 13: Multithreading. Krste Asanovic Electrical Engineering and Computer Sciences University of California, Berkeley http://www.eecs.berkeley.edu/~krste http://inst.eecs.berkeley.edu/~cs252. Recap: Directory Coherence Protocols.

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382 views • 37 slides
Scalable Cache Coherent Systems

Scalable Cache Coherent Systems

Scalable Cache Coherent Systems. Scalable distributed shared memory machines Assumptions: Processor-Cache-Memory nodes connected by scalable network. Distributed shared physical address space. Communication assist (CA) must interpret network transactions, forming shared address space.

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276 views • 27 slides
Scalable Cache Coherent Systems

Scalable Cache Coherent Systems

Scalable Cache Coherent Systems. Scalable distributed shared memory machines Assumptions: Processor-Cache-Memory nodes connected by scalable network. Distributed shared physical address space. Communication assist (CA) must interpret network transactions, forming shared address space.

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290 views • 27 slides
Scalable Cache Coherent Systems

Scalable Cache Coherent Systems

Scalable Cache Coherent Systems. Scalable distributed shared memory machines Assumptions: Processor-Cache-Memory nodes connected by scalable network. Distributed shared physical address space. Communication assist must interpret network transactions, forming shared address space.

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401 views • 26 slides

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