PPT-Language Support for Concurrency

Ken Birman 1 Synchronization paradigms Weve looked at critical sections Really a form of locking When one thread will access shared data first it gets a kind of lock This prevents other threads from accessing that data until the first one has finished. This motivated an ongoing shared effort by the standards committees to specify concurrent behaviour in the next versions of both languages They aim to provide strong guarantees for racefree programs together with new but subtle relaxedmemory atomic Sadhna Kumari. OUTLINE. ACID Properties. 2-Phase Commit Protocol. TPS. Serializability. Concurrency Control Protocols. Current Research. Future. References. ACID PROPERTIES. Atomicity: . A . transaction is . 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. -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System. [. R. Chow & T. Johnson, 1997. Prof. O. Nierstrasz. Selected material © Magee and Kramer. © Oscar Nierstrasz. 2. Roadmap. Modelling Concurrency. Finite State Processes . Labelled Transition Systems. Java Threads. Thread creation. Arrivals . and EAL Pupils. Naomi Wilson, . Advisory Teacher, Minority Ethnic & Traveller Attainment Service, East Riding of Yorkshire . Council. Claire Head. Lecturer, University of Hull. Introductions. 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. Ben Shelton. Motivation. Concurrent programming is . necessary. Multicore . revolution. Concurrent programming is . difficult, and . p. rogrammers need tools to help them write more reliable concurrent programs. 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.. Sadhna Kumari. OUTLINE. ACID Properties. 2-Phase Commit Protocol. TPS. Serializability. Concurrency Control Protocols. Current Research. Future. References. ACID PROPERTIES. Atomicity: . A . transaction is . Software & the Concurrency Revolution by Sutter & Larus ACM Queue Magazine, Sept. 2005 For CMPS 5433 - Halverson 1 In a Nutshell “The concurrency revolution is primarily a software revolution Barbara Stroud, PhD. Infant Mental Health. What is Infant Mental Health?. Successful social-emotional developmental outcomes. Prevention & promotion model to target all children. How does it apply to Child Care Providers?. -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System [. R. Chow & T. Johnson, 1997. Common Triggers and Challenges. Delay / lack of speech . development (age and stage). Lack of response to other’s speech (including own name. ) . Stereotyped and repetitive use of language. Pronoun reversal (saying ‘you’ for ‘I’).