Parallel structuring of real-time simulation programs

The E/SP interactive system for construction of parallel programs from Fortran source is applied to a program for real-time simulation of a braking system. There are large and significant classes of programs (real-time control systems, event-driven simulations. etc.) where little parallelism can be extracted from loops. E/SP was constructed to support analysis in the development of parallel structures for these classes of programs, as well as for those with significant loop-based parallelism. The concepts underlying E/SP and the paradigm for its use are described. An example illustrates determination of a call-tree-oriented parallel structure for a production Fortran code which was resistant to loop-based structuring.<>