DYNAMIC DATA DISTRIBUTIONS IN VIENNA FORTRAN*

Vienna Fortran is a machine-independent language extension of Fortran, which is based upon the Single-Program-Multiple-Data (SPMD) paradigm and allows the user to write programs for distributed-memory systems using global addresses. The language features focus mainly on the issue of distributing data across virtual processor structures. In this paper, we discuss those features of Vienna Fortran that allow the data distributions of arrays to change dynamically, depending on runtime conditions., For We discuss the relevant language features, outline their implementation and describeCRA & I how they may be used in applications. DTIC TAB 3 Unannounced