Publications:Globally Parallel, Locally Sequential : A Preliminary Proposal for Acumen Objects

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Title Globally Parallel, Locally Sequential : A Preliminary Proposal for Acumen Objects
Author Paul Brauner and Walid Taha
Year 2010
PublicationType Conference Paper
Journal
HostPublication POOSC'10, Proceedings of the 9th Workshop on Parallel/High-Performance Object-Oriented Scientific Computing
DOI http://dx.doi.org/10.1145/2039312.2039314
Conference POOSC'10. Workshop on Parallel Object Oriented Scientific Computing 9th Workshop on Parallel/High-Performance Object-Oriented Scientific Computing, POOSC'10, at the ACM Conference on Systems, Programming, Languages and Applications: Software for Humanity, SPLASH, Reno/Tahoe, USA, 17-22 October
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:588247
Abstract An important and resource-intensive class of computation codes consists of simulators for physical systems. Today, most simulation codes are written in general-purpose imperative languages such as C or FORTRAN. Unfortunately, such languages encourage the programmer to focus her attention on details of how the computation is performed, rather than on the system being modeled.This paper reports the design and implementation of a novel notion of an object for a physical modeling language called Acumen. A key idea underlying the language's design is encouraging a programming style that enables a "globally parallel, locally imperative" view of the world. The language is also being designed to preserve deterministic execution even when the underlying computation is performed on a highly parallel platform. Our main observation with the initial study is that extensive and continual experimental evaluation is crucial for keeping the language design process informed about bottlenecks for parallel execution.