History points are gathered to node 0 and written to disk during the integration. A measurement file is written by node 0 that includes lift and drag forces, viscous forces, and the kinetic energy of each mode. Flow statistics for velocity, vorticity, and turbulent stresses are gathered to node 0 at certain time steps and written to three separate files. Each of these files contains the mean, variance, skewness, and flatness associated with each field. During the final, or postprocessing, phase, the field file is written.
Assembler code is used, where necessary, to achieve peak performance.
Acknowledgements This application was provided by Ron Henderson at Caltech. Trace data was obtained using the Pablo trace capture library. This research is supported in part by the National Science Foundation .