Current Status of the COFFE Solver within HPCMP CREATE<sup>TM</sup>-AV Kestrel
Kevin R. Holst, Ryan S. Glasby, Jon T. Erwin, Douglas L. Stefanski, Daniel Prosser, W. Kyle Anderson, Stephen Wood
Abstract
Recent development for United States Department of Defense HPCMP CREATE™-AV Kestrel component COFFE has led to significant speed, robustness, and work-flow improvements. Significant speed-up is achieved through vectorization pragmas and compiler options; robustness is improved through the adoption of a new pressure-based shock switch and slight modification to the negative side of the SA-neg turbulence model; and post-processing work-flow is enhanced with the addition of dimensional outputs and Kestrel taps. These improvements are demonstrated through efficient and accurate simulations across a variety of geometries and flow conditions, including a high-speed cylinder, a double cone, an F/A-18 fighter, the Common Research Model, and the JAXA Standard Model. Furthermore, linear CPU strong scaling is demonstrated for up to 7,128 cores for a grid made up of 49,073,713 nodes.