Documento Fuente
The Journal of Supercomputing, ISSN 0920-8542, vol. 58, no. 2, pages 226-234, 2011.
Résumé
Programming models of pure nested-parallelism are appealing due to their ease of programming and good analysis and debugging properties. Although their simple synchronization structure is appropriate to represent abstract parallel algorithms, it does not take into account many implementation issues. In this work we present Trasgo, a programming system based on high-level, nested-parallel specifications. We show how it allows to easily express complex combinations of data and task parallelism with a common scheme, hiding the layout and scheduling details. The approach allows the development of a modular compiler where automatic transformation techniques may exploit lower level and more complex synchronization structures, unlocking the limitations of pure nested-parallel programming. This article presents an overview of the features of Trasgo, and its architecture. We present some performance results using well-known parallel algorithms, and a roadmap of improvements and new features to be added to Trasgo.
Patrocinador
This research is partly supported by the Ministerio de Educación y Ciencia, Spain (TIN2007-62302), Ministerio de Industria, Spain (FIT-350101-2007-27, FIT-350101-2006-46, TSI- 020302-2008-89, CENIT MARTA, CENIT OASIS), Junta de Castilla y León, Spain (VA094A08), and also by the Dutch government STW/PROGRESS project DES.6397. Part of this work was carried out under the HPC-EUROPA project (RII3-CT-2003-506079), with the support of the European Community–Research Infrastructure Action under the FP6 “Structuring the European Research Area” program.
