'Write set' diaporamas de présentation

Transactional Memory

Transactional Memory. Companion slides for The Art of Multiprocessor Programming by Maurice Herlihy & Nir Shavit. Fine grained parallelism has huge performance benefit. The reason we get only 2.9 speedup. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c.

785 views • 65 slides

Transactional Memory

Transactional Memory. Companion slides for The Art of Multiprocessor Programming by Maurice Herlihy & Nir Shavit. Fine grained parallelism has huge performance benefit. The reason we get only 2.9 speedup. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c. c.

673 views • 65 slides

Software Transactional Memory: Where Do We Come From? What Are We? Where Are We Going?

651 views • 55 slides

RWset: Attacking Path Explosion in Constraint-Based Test Generation

Cristian Cadar, Peter Boonstoppel, Dawson Engler. RWset: Attacking Path Explosion in Constraint-Based Test Generation. TACAS 2008, Budapest, Hungary ETAPS 2008. Constraint-Based Test Generation.

641 views • 49 slides

Transactional Locking

502 views • 38 slides

Hawkeye : Effective Discovery of Dataflow Impediments to Parallelization

Hawkeye : Effective Discovery of Dataflow Impediments to Parallelization. Omer Tripp John Field. Greta Yorsh Mooly Sagiv. Dataflow Impediments to Parallelization. public void setAndProcess (Object o) { set(o); process(); }. set(o) || process()?. public void set(Object o) {

439 views • 31 slides

An Effective Hybrid Transactional Memory System with Strong Isolation Guarantees

An Effective Hybrid Transactional Memory System with Strong Isolation Guarantees. Minh, Trautmann , Chung, McDonald, Bronson, Casper, Kozyrakis , Olukotun. Presented by Cynthia Sturton 5/5/08. Outline. Software Transactional Memory Hardware Transactional Memory SigTM.

724 views • 28 slides

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

274 views • 27 slides

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

277 views • 27 slides

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:

273 views • 27 slides

Lecture 10: Transactional Memory

787 views • 25 slides

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

316 views • 24 slides

On the COST of concurrency In Transactional Memory

On the COST of concurrency In Transactional Memory. Petr Kuznetsov TU Berlin/DT-Labs Joint work with Srivatsan Ravi. Euro-TM, 2011. STM is about ease-of-programming and efficient use of concurrency. Does it come with a cost?.

319 views • 22 slides

Consistent and Efficient Database Replication based on Group Communication

Consistent and Efficient Database Replication based on Group Communication. Bettina Kemme School of Computer Science McGill University, Montreal. Outline. State of the Art in Database Replication Key Points of our Approach Overview of the Algorithms Implementation Issues

230 views • 22 slides

CIS 720

294 views • 20 slides

Architectural Semantics for Practical Transactional Memory

Architectural Semantics for Practical Transactional Memory. Austen McDonald, JaeWoong Chung, Brian D. Carlstrom, Chi Cao Minh, Hassan Chafi, Christos Kozyrakis and Kunle Olukotun Computer Systems Laboratory Stanford University http://tcc.stanford.edu. We Need Transactional Memory.

305 views • 18 slides

Distributed Optimistic Algorithm

Distributed Optimistic Algorithm. Assumptions Synchronized clocks MTD (max, trans, delay) can be defined Step 1: same as before Step 2: same as before Step 3: transaction is broadcasted to all nodes at time ? (V i ) (time when computation finishes and T i is ready for validation)

238 views • 14 slides

Lecture 18: Transactional Memories II

217 views • 12 slides

Concurrency Control by Validation (18.9)

Concurrency Control by Validation (18.9). By: Pushkar Marathe Id: 217. Agenda. Overview Architecture of the scheduler Validation rules Example Comparison of concurrency control mechanisms. Overview. Type of optimistic concurrency control.

246 views • 12 slides

224 views • 9 slides