PPT-Synchronization II

Hakim Weatherspoon CS 3410 Spring 2013 Computer Science Cornell University PampH Chapter 211 Goals for Today Synchronization Threads and processes Critical sections race conditions and . eeethzch Abstract Clock synchronization is one of the most basic building blocks for many applications in computer science and engineering The purpose of clock synchronization is to provide the constituent parts of a distributed system with a common g shooter detection Goals of clock synchronization Compensate offset between clocks Compensate drift between clocks terms are explained on following slides Time Synchronization Sensing Localization Duty Cycling TDMA Ad Hoc and Sensor Networks Roger W ReferenceBroadcast Synchronization RBS is a technique that allows a set of receivers in a broadcast network to accurately esti mate each others clock values RBS provides a relative timeframe for conversion between the local clocks of di erent nodes wait Bi l s gna C lock acquire D lock release E signalAll Hoare monitor semantics Assume thread T1 is waiting on condition Assume thread T2 is in the monitor Assume thread T2 calls x signal T2 ives u monitor T2 blocks gp T1 takes over monitor run 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 . Hakim Weatherspoon. CS 3410, Spring 2012. Computer Science. Cornell University. P&H Chapter 2.11. Goals for Today. Synchronization. Threads and processes. Critical sections, race conditions, and . . draft-dimitri-ospf-phased-db-sync-00.txt. Dimitri Papadimitriou. Alcatel-Lucent. IETF 79 – Beijing. November 7-12, 2010. Motivation. Opaque LSAs . OSPF extensibility: information contained in Opaque LSAs often used by application wishing to distribute information throughout OSPF domain (so called "non-IP routing information"). Marc S. . Orr. †. §. , . Shuai . Che. §. , Ayse Yilmazer. §. ,. Bradford . M. . Beckmann. §. , Mark . D. . Hill. †. §. , . David A. . Wood. †. §. †. UW-Madison, . §. AMD . Research. ASPLOS, March 16, 2015. Pro .Net Programming in C#, Adam Freeman. The Trouble with Data. Account balance problem. Going into the races. Creating some order. Sequential execution. Immutability. Isolation. Synchronization. The Trouble with Data. Kaushik. . Majumdar. Indian Statistical Institute. 8th Mile, Mysore Road. Bangalore 560059. https://sites.google.com/site/isicng/. Workshop on “Cognition, Emotion and Computing,” Infosys Limited, Bangalore, 30 April 2013. . kota. . 21-sep-2015. AGENDA. Introduction. Synchronization. Physical Clocks. Global Positioning System. Algorithms. Future Work. References. Introduction: Real . Time System. 1. . A . Marc S. . Orr. †. §. , . Shuai . Che. §. , Ayse Yilmazer. §. ,. Bradford . M. . Beckmann. §. , Mark . D. . Hill. †. §. , . David A. . Wood. †. §. †. UW-Madison, . §. AMD . Research. ASPLOS, March 16, 2015. Farnaz. . Moradi. . Asrin. . Javaheri. Outline. Wireless sensor networks. Surveillance Applications. Clock synchronization. Synchronization algorithms. RBS. FTSP. Implementation. Performance Evaluation. Dr. Yanqing Zhang. Agenda. Overview. Synchronization Techniques. WebDAV(Web Distributed Authoring and Versioning). Future Work. References. What is Synchronization?. In general it is . process of precisely coordinating or matching two or more activities, devices, or processes in time..