PPT-Synchronization: Advanced

15213 Introduction to Computer Systems 24 th Lecture Nov 18 2010 Instructors Randy Bryant and Dave OHallaron Today Producerconsumer problem Readerswriters problem Thread safety. 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 : Adaptively . Combining Pessimistic and. Optimistic Synchronization for Efficient Parallel Runtime Support. Man Cao. Minjia. Zhang. Michael D. Bond. 1. Dynamic Analyses for Parallel Programs. Data Race Detector, . Hakim Weatherspoon. CS 3410, Spring 2013. Computer Science. Cornell University. P&H Chapter . 2.11 and 5.8. Big Picture: Parallelism and Synchronization. How do I take advantage of multiple processors; . Macroprogramming. Systems. Presented by: S. M. . Shahriar. . Nirjon. Timothy W.. . Hnat. and . Kamin. Whitehouse. hnat@cs.virginia.edu, WHITEHOUSE@cs.virginia.edu . Motivation. Synchronization Problems. Synchronization. How to synchronize processes?. Need to protect access to shared data to avoid problems like race conditions. Typical example: Updating a shared account balance. Problem below?. Processor 1. Rui. . Gu. , . Guoliang. . Jin. , . Linhai. Song, . Linjie. Zhu, Shan Lu. University . of Wisconsin – Madison, USA. Proper Thread Synchronization . is . Hard. Very easy to get things wrong. H. ard-to-find concurrency bugs(Data race, Atomicity Violation, Dead Lock). Hakim Weatherspoon. CS 3410, Spring 2013. Computer Science. Cornell University. P&H Chapter 2.11 and 5.8. Big Picture: Parallelism and Synchronization. How do I take advantage of multiple processors; . 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 . Masahiro Sasabe. and Tetsuya Takine. Osaka University, Japan. 1. DTNRG at IETF 76. Outline. Research background. Time synchronization. Time sync. for mobile ad hoc networks. Relative time synchronization. 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. 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.. Professor Hugh C. Lauer. CS-3013, Operating Systems. (Slides include . copyright materials . Modern . Operating Systems. , 3. rd. ed., by Andrew Tanenbaum and from . Operating System Concepts. , 7. th.