PPT-Concurrency 2

CS 2110 Spring 2016 Consistency x 2 y 3 a y gt 0 x 0 Systemoutprintln a Thread 1 Thread 2 x 1 y 1 What is printed 0 1 and 2 can be printed Consistency. Slide . 1. Too Much Milk. . Roommate . A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency. Seminar: Transaction Processing (Bachelor). SS 2009. Dennis . Stratmann. Outline. Goal and Overview. Examine Three Approaches to CC on RD:. 1. Predicate-Oriented Concurrency Control. 2. Relational Update Transactions. What is it?. What is concurrency?. Concurrency is not a new idea…. Concurrency was first developed by the ancient Babylonians.. They thought about stuff, walked, and chewed gum … all at the same time.. concurrency. . controll. Chapter. 13. “Distributed Systems: . Concepts and Design”. Coulouris. , . Dollimore. , Kindberg. Hanna. Björling, . Stina Fröjd & Liv Sundman. Transaction. A transaction is a point where there is interaction with the database.  Rick Molloy. . Program Manager. Microsoft Corporation. TL25. Motivation and Hard Problems. Comprehensive Solutions. Native Concurrency Platform in Visual Studio 2010. Concurrency Runtime. Parallel Pattern Library. Slides. are . mainly. . taken. from «O. perating. Systems: Internals and Design Principles”, . 8/E . William Stallings (Chapter . 5). . Sistemi di Calcolo (II semestre) – Roberto Baldoni. Multiple Processes. Main-Memory Workloads. Iraklis. . Psaroudakis. (EPFL). , Tobias Scheuer (SAP AG), Norman May (SAP AG), Anastasia Ailamaki (EPFL). 1. Scheduling for high concurrency. 2. Queries >> H/W contexts. AIDS 2012, July 24, 2012. Presented by: Sarah Rutstein. Co-authors: C. . Mapanje. , G. Kamanga, S. Phiri, D. . Nsona. , A. Pettifor, N. Rosenberg, I. Hoffman, W. Miller. HIV testing in Malawi. on Program . Analysis. Weizmann Institute . of Science. Guy Katz. and David . Harel. Overview. Program analysis: verification, repair, synthesis, . etc. Very desirable, but very difficult. State explosion. Median of a Triangle. A line segment connecting a vertex of a triangle to the midpoint of the opposite side. On a piece of graph paper, graph the triangle with vertices A(2, 1) B(5, 8) C(8, 3). . Find the midpoint of each side and label the midpoint opposite A “D”, opposite B “E”, opposite C “F”. . Paolo . Baldan. . and. Silvia . Crafa. Universita. ’ . di. . Padova. Models of Concurrency. a | b = . a.b. + . b.a. a. a. b. b. Different . causal. properties. Different . distribution. properties. Concurrency. Multithreaded Programs. Copyright © Texas Education Agency, 2013. Overview. Why Concurrency?. Threads. Scheduling. Runnable interface. Race Conditions. Locks. Thread Safe. Dead Lock. 2. Database System Implementation CSE 507. Some slides adapted from . Navathe. et. Al. , . Silberchatz. et. Al and . Hector Garcia-Molina . Lock Based Protocols. A lock is a mechanism to control concurrent access to a data item. Motivation, Challenges, Impact on Software Development. CSE 110 – Winter 2016. About These Slides. Due to the nature of this material, this lecture was delivered via the chalkboard. Every was advised that slides would not be available and that notes should be taken. .