tailieunhanh - Grid Computing P6

The term ‘the Grid’ was coined in the mid-1990s to denote a proposed distributed computing infrastructure for advanced science and engineering [1]. Considerable progress has since been made on the construction of such an infrastructure (., [2–5]), but the term ‘Grid’ has also been conflated, at least in | PART B Grid architecture and technologies Reprint from International Journal of High Performance Computing Applications 2001 Sage Publications Inc. USA . Minor changes to the original have been made to conform with house style. 6 The anatomy of the Grid Enabling Scalable Virtual Organizations Ian Foster 1 2 Carl Kesselman 3 and Steven Tuecke1 1 Mathematics and Computer Science Division Argonne National Laboratory Argonne Illinois United States 2Department of Computer Science The University of Chicago Chicago Illinois United States 3Information Sciences Institute The University of Southern California California United States INTRODUCTION The term the Grid was coined in the mid-1990s to denote a proposed distributed computing infrastructure for advanced science and engineering 1 . Considerable progress has since been made on the construction of such an infrastructure . 2-5 but the term Grid has also been conflated at least in popular perception to embrace everything from advanced networking to artificial intelligence. One might wonder whether the term has any real substance and meaning. Is there really a distinct Grid problem and hence a need for new Grid technologies If so what is the nature of these technologies and what is their domain of applicability While numerous groups have interest in Grid concepts To appear Intl J. Supercomputer Applications 2001. Grid Computing - Making the Global Infrastructure a Reality. Edited by F. Berman A. Hey and G. Fox 2003 John Wiley Sons Ltd ISBN 0-470-85319-0 172 IAN FOSTER CARL KESSELMAN AND STEVEN TUECKE and share to a significant extent a common vision of Grid architecture we do not see consensus on the answers to these questions. Our purpose in this article is to argue that the Grid concept is indeed motivated by a real and specific problem and that there is an emerging well-defined Grid technology base that addresses significant aspects of this problem. In the process we develop a detailed architecture and roadmap .