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AcuSolve™ is a leading general‐purpose finite element‐based Computational Fluid Dynamics (CFD) flow solver with superior robustness, speed, and accuracy. With AcuSolve, users can quickly obtain quality solutions without iterating on solution procedures or worrying about mesh quality or topology.
AcuSolve simulations are typically carried out on HPC systems. Among the HPC systems, HPC clusters have become the preferred solution as they provide an efficient performance compute solution based on industry standard hardware connected by a high speed network. Many of the HPC clusters are based on the InfiniBand high‐speed interconnect as it provides a low latency and high bandwidth solution. Understanding AcuSolve scalability and optimization options available for clusters at scale are crucial for utilizing the capability of InfiniBand‐based systems to serve as cost effective high‐performance and highly scalable solutions. The HPC Advisory Council has performed a deep investigation and profiling for AcuSolve to understand its performance and scaling capabilities and to explore potential optimizations. The paper will present the optimization techniques and networking profiling results to further understand AcuSolve dependencies on the network and the MPI library, and options for future optimizations using MPI offloads.