X101.044(IBM) 

X10 is an experimental new language currently under development at IBM in collaboration with academic partners. The X10 effort is part of the IBM PERCS project (Productive Easy-to-use Reliable Computer Systems) in the DARPA program on High Productivity Computer Systems. The PERCS project is focused on a hardware-software co-design methodology to integrate advances in chip technology, architecture, operating systems, compilers, programming language and programming tools to deliver new adaptable, scalable systems that will provide an order-of-magnitude improvement in development productivity for parallel applications by 2010. X10 aims to contribute to this productivity improvement by developing a new programming model, combined with a new set of tools integrated into Eclipse and new implementation techniques for delivering optimized scalable parallelism in a managed runtime environment. X10 is a type-safe, modern, parallel, distributed object-oriented language intended to be very easily accessible to Java programmers. It is targeted to future low-end and high-end systems with nodes that are built out of multi-core SMP chips with non-uniform memory hierarchies, and interconnected in scalable cluster configurations. A member of the Partitioned Global Address Space (PGAS) family of languages, X10 highlights the explicit reification of locality in the form of places; lightweight activities embodied in async, future, foreach, and ateach constructs; constructs for termination detection (finish) and phased computation (clocks); the use of lock-free synchronization (atomic blocks); and the manipulation of global arrays and data structures. An Eclipse-based Integrated Development Environment (IDE) has been developed at IBM for X10 to help further increase programmer productivity by providing state-of-the-art functionality for viewing, editing, navigating, executing, and manipulating X10 programs. The X10 Development Toolkit (X10DT) is intended to be a full-featured IDE for X10 offering the features Java programmers have come to love and depend upon in Eclipse: a source editor with various coding assists, lightweight information pop-ups, high-level and low-level navigation views, powerful search capabilities, application launch configuration management, refactoring, and debugging support. In addition, the X10DT will include tools, views and refactorings that specifically address the development of highly concurrent software in X10..

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