Issue link: https://resources.randsim.com/i/1504493
170 ©2023 ANSYS, Inc. PCG Solver Enhancements • PCG solver uses significantly less memory than direct solver for harmonic analyses 0 300 600 900 1200 1500 1800 16 32 64 128 256 512 Memory Usage (GB) Number of Cores Solver Memory Usage 2023 R2 (Sparse Direct) 2023 R2 (PCG Iterative) 10x memory reduction • 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