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Transaction begin transaction begin - PowerPoint PPT Presentation

Lecture: Consistency Models, TM

Lecture: Consistency Models, TM

Lecture: Consistency Models, TM. Topics: consistency models, TM intro (Section 5.6). Coherence Vs. Consistency. Recall that coherence guarantees (i) that a write will eventually be seen by other processors, and (ii) write serialization (all processors see writes to the same location

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283 views • 27 slides
Lecture: Consistency Models, TM

Lecture: Consistency Models, TM

Lecture: Consistency Models, TM. Topics: consistency models, TM intro (Section 5.6). Coherence Vs. Consistency. Recall that coherence guarantees (i) that a write will eventually be seen by other processors, and (ii) write serialization (all processors see writes to the same location

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285 views • 27 slides
Lecture 4: Directory Protocols and TM

Lecture 4: Directory Protocols and TM

Lecture 4: Directory Protocols and TM. Topics: corner cases in directory protocols, lazy TM. Handling Reads. When the home receives a read request, it looks up memory (speculative read) and directory in parallel Actions taken for each directory state:

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Computer Architecture Research Overview Focus on: Transactional Memory Rajeev Balasubramonian

Computer Architecture Research Overview Focus on: Transactional Memory Rajeev Balasubramonian

Computer Architecture Research Overview Focus on: Transactional Memory Rajeev Balasubramonian School of Computing, University of Utah http://www.cs.utah.edu/~rajeev. What is Computer Architecture?. To a large extent, computer architecture determines:

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378 views • 26 slides
Lecture 10: Coherence, Transactional Memory

Lecture 10: Coherence, Transactional Memory

Lecture 10: Coherence, Transactional Memory. Topics: coherence wrap-up, coherence vs. message-passing, lazy TM implementations. Writeback Cases. P1. P2. Fwd. Wback. Rd or Wr. D3 E: P1 ? busy. If someone else has the block in exclusive, D3 moves to busy

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Lecture 9: Directory Protocol, TM

Lecture 9: Directory Protocol, TM

Lecture 9: Directory Protocol, TM. Topics: corner cases in directory protocols, coherence vs. message-passing, TM intro. Handling Write Requests. The home node must invalidate all sharers and all invalidations must be acked (to the requestor), the

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223 views • 21 slides

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