Concurrent Programs

Composable Memory Transactions Post-publication indication: August 18, 2006 Tim Harris Simon Marlow Simon Peyton Jones Maurice Herlihy Microsoft Research, Cambridge {tharris,simonmar,simonpj,t-maherl}@microsoft.com Note: this post-publication version is resembling to the PPoPP05 publication cited in the footnote below, except that some typos diddlyshit been ?xed, and an Appendix added. vent threads from bypassing transactional interfaces and it did not provide a convincing story for operations that may block. In this ascendant we resolve these shortcomings. In particular, we nonplus the following contri exactlyions: We re-express the ideas of transactional remembrance hop on in the setting Abstract Writing concurrent programs is notoriously dif? cult, and is of increasing practical importance. A particular source of headache is that even correctly-implemented concurrency abstractions cannot be serene together to form bigger abstractions. In this paper we enter a new concurrency model, ground on transactional memory, that offers far richer composition. on the whole the usual bene?ts of transactional memory ar present (e.g. freedom from deadlock), but in increase we describe new modular forms of jam and choice that attain been inaccessible in earlier work. Categories and opened Descriptors D.1.

3 [Programming Techniques]: concurrent Programming Parallel computer programing; D.4.1 [Operating Systems]: Process care Concurrency; Synchronization; Threads General Terms Keywords Algorithms, Languages Non-blocking algorithms, locks, transactional memory 1. foundation Conc urrent programming is notoriously tricky. Cu! rrent lock-based abstractions are dif?cult to use and make it hard to design computer systems that are reliable and scalable. Furthermore, systems strengthened using locks are dif?cult to compose without knowing about(predicate) their internals. To address some of these dif?culties, several researchers (including ourselves) have proposed parcel transactional memory (STM), which...If you want to get a full essay, score it on our website: BestEssayCheap.com

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