EXCELLERAT Success Story: Transparent Integration of Emerging HPC Technologies into the Computational Fluid Dynamics Software CODA

Abstract

Providing high-fidelity aerodynamics simulations requires vast computational resources. Leading-edge HPC systems are increasingly complex: consisting of millions of heterogeneous processing elements including GPUs. To harness their full potential, CFD software such as CODA require not only the efficient utilization of the CPU but must also support emerging technologies such as GPUs. Within EXCELLERAT, the capabilities of Spliss (the Sparse Linear Systems Solver) have been extended and optimized for GPUs. Spliss allows CODA the efficient and transparent usage of GPUs for linear systems solving while at the same time hiding the inherent complexity.