COMPUTATIONAL INEFFICIENCIES IN SEQUENTIAL MODULAR FLOWSHEETING

Aspects of the performance problem of sequential modular flowsheet simulators on advanced computer architectures were investigated. It was found that modest computational performance improvements can be expected with increasing flowsheet problem complexity. Tests also revealed that for the sequential modular flowsheet simulator utilized, a large proportion of the computation time was spent in physical property calculations. For the simulator studied, the structure of the code inefficiencies would appear to prevent taking advantage of supercomputer architecture in a substantial way.