Performance Evaluation of the Flow Solver TRACE -- from Fluid Flows to Fluid-Structure Interaction via the FSTraceInterface

Abstract

The CFD solver TRACE is used for state-of-the-art turbomachinery development. The code can either be run as a standalone program for pure CFD applications, or be steered via the HPC-capable FlowSimulator framework using the FSTraceInterface. The latter enables coupled Fluid-Structure Interaction (FSI) simulations. To ensure good performance of the existing codebase and new additions, performance evaluations using tools such as Score-P, Vampir and Cube are necessary. A performance analysis for the harmonic balance solver of TRACE is conducted and a costly synchronization delay is detected and subsequently removed. Then, the FSI coupling via FlowSimulator is analyzed for the first time. The Score-P Python bindings are used to instrument this complex C++ -- Python toolchain.