Automatic data layout for high performance Fortran

Abstract

A framework is described for automatic data layout for use in a data layout assistant tool for a data-parallel language such as High Performance Fortran (HPF). The envisioned tool can be used to generate a first data layout for a sequential Fortran program without data layout statements, or to extend a partially specified data layout in a HPF program to a totally specified data layout. The framework can use techniques that may be too computationally expensive to be included in a compiler. A prototype data layout assistant tool based on the framework has been implemented as part of the D system currently under development at Rice University.