Bouclettes is a source to source loop nest parallelizer. It takes as an input Fortran uniform, perfectly nested loops and gives as an output an equivalent High Performance Fortran program with data distribution directives and parallel ($HPF! INDEPENDENT) loops. This paper explains how the HPF program is built from a “shifted linear schedule” and a data allocation. We focus on the problems we ha...

This paper introduces the Weight Finder, an advanced profiler for Fortran programs,which is based on a von Neumann architecture. Existing Fortran codes are generally too large toanalyze fully in depth with respect to performance tuning. It is the responsibility of the WeightFinder to detect the most important regions of code in the program, as far as execution time isconcerned. ...

This paper introduces the Weight Finder, an advanced profiler for Fortran programs,which is based on a von Neumann architecture. Existing Fortran codes are generally too large toanalyze fully in depth with respect to performance tuning. It is the responsibility of the WeightFinder to detect the most important regions of code in the program, as far as execution time isconcerned. ...

MPI is a de facto standard for portable parallel programming using a message passing paradigm. Interest is growing in other paradigms, in particular Partitioned Global Address Space (PGAS) languages such as Coarray Fortran, UPC and Titanium. Most Computational Science and Engineering codes are written in Fortran, and the 2008 Fortran standard will include coarrays, a Cray initiated PGAS extensi...

Distributed-memory systems are powerful tools for solving large-scale scientiic and engineering problems. However these machines are diicult to program since the data have to be distributed across the processors and message-passing operations must be inserted for communicating non-local data. In this paper, we discuss SUPERB and Vienna Fortran, two related developments with the objective of pro...