Experiences using the ParaScope Editor

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Abstract
The ParaScope Editor is an interactive parallel pro- gramming tool that assists knowledgeable users in de- veloping scientific Fortran programs. It displays the re- sults of sophisticated program analyses, provides a set of powerful interactive transformations, and supports program editing. This paper summarizes experiences of scientific programmers and tool designers using the ParaScope Editor. We evaluate existing features and describe enhancements in three key areas: user inter- face, analysis, and transformation. Many existing fea- tures prove crucial to successful program parallelization. They include interprocedural array side-effect analy- sis and program and dependence view filtering. De- sirable functionality includes improved program navi- gation based on performance estimation, incorporating user assertions in analysis and more guidance in select- ing transformations. These results offer insights for the authors of a variety of programming tools and paral- Ielizing compilers.

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