PPT-Software & the Concurrency Revolution

Software amp the Concurrency Revolution by Sutter amp Larus ACM Queue Magazine Sept 2005 For CMPS 5433 Halverson 1 In a Nutshell The concurrency revolution is primarily a software revolution. Historiography. The history of the French Revolution is highly debated and there are a range of interpretations of it. Below is a brief outline of three key groups.. Contemporary Interpretations. Mostly held by 19. 1. Emmett . Witchel. The University of Texas At Austin. Q: When is everything happening?. A: Now. A: Concurrently. 2. Concurrency is central to CS. CS is at forefront of understanding concurrency. We operate near light speed. 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. 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. Prof. O. Nierstrasz. Selected material © Magee and Kramer. © Oscar Nierstrasz. 2. Roadmap. Modelling Concurrency. Finite State Processes . Labelled Transition Systems. Java Threads. Thread creation. 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. Concurrency Topics. 1. Sequential programming notation. 2. Expressing concurrency with . co. and . process. . 3. States and hardware. 4. Atomic actions. 5. Inter-leavings and histories. 6. The finite progress assumption. 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. Database Concurrency Control. 1 Purpose of Concurrency Control. To enforce Isolation (through mutual exclusion) among conflicting transactions. . To preserve database consistency through consistency preserving execution of transactions.. Economic and social conditions around the world changed dramatically as result of the Industrial Revolution. Important Terms: . Do Now: . Identify two positive impacts of the Industrial Revolution. Quarterly Exam Review. Background. Treaty of Ryswick – 1695 . Africans and . engagés. for labor. 1685 – Negro codes – punishments . High mortality / low fertility. Slave population – 500,000 – most African-born. Sadhna Kumari. OUTLINE. ACID Properties. 2-Phase Commit Protocol. TPS. Serializability. Concurrency Control Protocols. Current Research. Future. References. ACID PROPERTIES. Atomicity: . A . transaction is . -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System [. R. Chow & T. Johnson, 1997. VarthagamSoft - India\'s best ERP software provider