Treffer: A DESIGN PATTERN LANGUAGE FOR ENGINEERING (PARALLEL) SOFTWARE.

The key to writing high-quality parallel software is to develop a robust software design. This applies not only to the overall architecture of the program, but also to the lower layers in the software system where the concurrency and how it is expressed in the final program is defined. Developing technology to systematically describe such designs and reuse them between software projects is the fundamental problem facing the development of software for tera-scale processors. The development of this technology is far more important than programming models and their supporting environments, since with a good design in hand, most any programming system can be used to actually generate the program's source code. In this article, we develop our thesis about the central role played by the software architecture. We show how design patterns provide a technology to define the reusable design elements in software engineering. This leads us to the ongoing project centered at UC Berkeley's Parallel Computing Laboratory (Par Lab) to pull the essential set of design patterns for parallel software design into a Design Pattern Language. After describing our pattern language, we present a case study from the field of machine learning as a concrete example of how patterns are used in practice. [ABSTRACT FROM AUTHOR]

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