We propose a new implementation model for structured parallel programming models based on skeletons. The model is aimed at overcoming some of the problems observed in traditional, template based implementations of skeleton languages, while preserving all the positive features of structured parallel programming models. The proposed implementation model does not rely on static process networks like the template based implementation model for skeletons. It rather implements skeleton programs by properly scheduling macro data-flow instructions (corresponding to the sequential portions of code appearing in the skeleton code) to a set of macro data-flow interpreters running on the processing elements of the target architecture. We discuss some preliminary experimental results demonstrating the feasibility and effectiveness of our approach.

Bringing skeletons out of the closet:

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We present CAMLFLOW, a custom CAML to data-flow graph (DFG) compiler. CAMLFLOW was designed to provide a front-end to various implementation -level parallel programming CASE tools taking DFGs for algorithm specification. It allows large and complex DFGs to be described in a textual and concise manner, using the facilities of the CAML LIGHT functional language. Compared to other graph notation systems, the main originality of CAMLFLOW lies in its ability to define higher-order polymorphic graph patterns.

In January 2008, the Programming model Institute of CoreGRID held a plenary meeting in Paris. The meeting was aimed at discussing progress achieved on the Programming model Institute research themes. During the meeting – most of the Institute partners were attending – different researchers presented their on-going work related to the Institute research themes. The meeting was also notable in that it was the first technical meeting where the new Associate partners of CoreGRID (those involved in the Programming model Institute activities) participated actively. This report hosts a synthetic version of the work presented in the Paris meeting. The different contributions cover