AI and HPC Applications on Leadership Computing Platforms: Performance and Scalability Studies. - JaeHyuk Kwack; Colleen Bertoni; Umesh Unnikrishnan; Riccardo Balin; Khalid Hossain; Yasaman Ghadar; Timothy J. Williams; Abhishek Bagusetty; Mathialakan Thavappiragasam; Väinö Hatanpää; Archit Vasan; John R. Tramm; et al. (IPDPS, 2025)