Accelerating the FlowSimulator: Mesh Deformation Performance Enhancement through Mixed Precisions

Abstract

This study investigates the performance enhancement of mesh deformation processes on High-Performance Computing systems through the integration of mixed precision techniques. The linear system, derived from the elastic analogy theory, is solved with iterative methods provided by the library Spliss. Reducing the memory size occupied by floating-point values, i.e. switching from double- to single-precision, at key points of the linear solver algorithm yields a noteworthy reduction in runtime without compromising the accuracy of the solution. Through industrial relevant numerical experiments, the feasibility and benefits of this approach in the context of mesh deformation problems in aeroelastic simulations are presented. In conjunction with algebraic multi-grid methods, mixed precision techniques increase the industrialization readiness level of mesh deformation methods based on the elastic analogy theory. These findings offer valuable performance enhancements for High-Performance Computing simulations within the aerospace industry.