D Newsletter #9 Handling Irregular Problems with Fortran D | a Preliminary Report Handling Irregular Problems with Fortran D | a Preliminary Report

Compiling irregular applications written in a data parallel, HPF-like language presents a challenging problem of growing importance. A project addressing this problem is the extension of the Fortran D compiler at Rice University to handle such codes. Generality and robustness have been major design objectives throughout this extension, allowing for arbitrary control ow and irregular accesses to multidimensional arrays. Even though this project is still in progress, it can already handle real-world codes fairly well, such as the non-bonded force calculation routine which is critical to molecular dynamics. This paper is a rst report on the experiences gained from extending the Fortran D compiler for irregular problems. Since the theoretical background underlying this project has already been described to some degree in previous publications, this paper focuses on the practical aspects of the implementation.