Chapel (programming language): Difference between revisions

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{{notability|date=June 2011}}

'''Chapel''' is a new parallel [[programming language]] developed by [[Cray]].<ref>''Modular programming languages: 7th Joint Modular Languages Conference'' by David E. Lightfoot 2006 ISBN 35404092703-540-40927-0 page 20</ref> It is being developed as part of the Cray Cascade project, a participant in [[DARPA]]'s [[High Productivity Computing Systems]] (HPCS) program, which had the goal of increasing supercomputer productivity by the year 2010. Chapel aims to improve the programmability of parallel computers in general and the Cascade system in particular, by providing a higher level of expression than current programming languages do and by improving the separation between algorithmic expression and data structure implementation details.

Chapel, the '''Cascade High Productivity Language''', supports a [[multithreaded]] parallel programming model at a high level by supporting abstractions for data parallelism, task parallelism, and nested parallelism. It enables optimizations for the locality of data and computation in the program via abstractions for data distribution and data-driven placement of subcomputations. It allows for code reuse and generality through [[object-oriented]] concepts and [[generic programming]] features. For instance, Chapel allows for the declaration of [[Locale (computer hardware)|locales]].<ref>