Issue link: https://resources.randsim.com/i/1504493
169 ©2023 ANSYS, Inc. PCG Solver Enhancements • PCG solver significantly faster than sparse direct solver for harmonic analyses 1 2 4 8 16 32 64 128 256 16 32 64 128 256 512 Solution Speedup Number of Cores Solver Performance 2023 R2 (Sparse Direct) 2023 R2 (PCG Iterative) • 18 million DOF (turbine blade) • Harmonic analysis with 20 frequency solutions between 0 to 150 Hz • Linux cluster; each compute node contains 2 Intel Xeon Platinum 8168 processors, 384GB RAM, SSD, CentOS 7.9, Mellanox Infiniband 10x faster solution