PPT-Synchronization without Contention

John MellorCrummey and Michael Scott Presented by Shoaib Kamil Overview Review of some lock types MCS lock algorithm Barriers Empirical Performance Discussion Review of Lock Types testampset. of RT Tasks onto a . TilePro. 64 Core Processor. 1 Background Introduction = why. 2 Goal. 3 What . 4 How. 5 Experimental Result. 6 Advantage & . Limitaion. 7 Significance & Improvement. Lei Cui . Katie Coons. April 6, 2006. Synchronization Operations. Locks. Point-to-point event synchronization. Barriers. Global event notification. Dynamic work distribution. Locks - Desirable Characteristics and Potential Tradeoffs. Hakim Weatherspoon. CS 3410, Spring 2012. Computer Science. Cornell University. P&H Chapter 2.11. Administrivia. Pizza . party: PA3 Games Night. Friday, April 27. th. , 5:00-7:00pm. Location: Upson . MATTHEW 12:34. Contention and Strife. Hebrew . RIB. physical struggle . Ex. 21:18. Verbal contention . Judges 6:32 . Waters of . Me. RIB. ah. . Ex. 17:7. Legal disputes . Deut. 25:1, Prov. 25:8-10. Katie Coons. April 6, 2006. Synchronization Operations. Locks. Point-to-point event synchronization. Barriers. Global event notification. Dynamic work distribution. Locks - Desirable Characteristics and Potential Tradeoffs. [Think – 2 minutes]. . [Pair – Tell each other what you think]. . . . [share]. [contention]. The . main contention . states the central point or argument of a piece of text or speech. Questions to consider. What is the central message the author is trying to convey to his/her audience?. What is the main point the author is trying to convince me of?. 1. Look at the title.. What is the message it is conveying?. Définition. La contention a pour objectif de limiter les capacités de mobilisation d’un individu de manière à le sécuriser ou protéger son environnement. Recouvrant différents aspects, elle doit néanmoins rester exceptionnelle et s’associer à d’autres prises en charges thérapeutiques. . Définition . Etymologie : vient du latin « . contentio.  » qui signifie « lutte . ».  . Selon Agence National d’Accréditation et d’évaluation en santé (ANAES) . :. «.  La contention physique et l’utilisation de tout moyens, méthodes, matériels ou vêtements qui empêchent ou limitent les capacités de mobilisation volontaire de tout ou une partie du corps dans le seul but d’obtenir la sécurité pour un patient qui présente un comportement estimé dangereux ou mal adapté. ». A Comparison of Locking vs. Transactional Memory. Written by: . Paul E. . McKenney. Jonathan . Walpole. Maged. M. . Michael. Josh . Triplett. Presented by: Jacob Lear. (Some slides borrowed from Dr. Walpole’s lectures). Why the Grass May Not Be Greener on the Other Side: A Comparison of Locking and Transactional Memory. Why Do Concurrent Programming?. Hardware has been forced down the path of concurrency:. can’t make cores much faster. in Wireless Sensor Networks. Philipp Sommer. Roger Wattenhofer. Time Synchronization is a well-studied Problem. Time, Clocks, and the Ordering of Events in a Distributed System. L. Lamport, Communications of the ACM, 1978.. Multicore. Programming. Brendan Lynch. Introduction. Synchronization techniques. l. ocks, barriers, non-blocking approaches, atomic primitives. Concurrent memory paradigms. s. hared memory, . d. istributed memory. Low Contention Mapping of RT Tasks onto a TilePro 64 Core Processor 1 Background Introduction = why 2 Goal 3 What 4 How 5 Experimental Result 6 Advantage & Limitaion 7 Significance & Improvement