A Preliminary Study on Performance Modeling at Scale for Geophysical Applications
Fabrice Dupros, Sylvain Jubertie, Hideo Aochi · 2025
Modeling the performance of real-world applications at scale is essential for designing next-generation platforms and shaping the development of future algorithms. However, accurately capturing the complexity of application execution graphs and their interaction with large-scale hardware environments remains a significant challenge. In recent years, several frameworks have been developed to tackle this issue by providing tools to simulate and analyze complex workloads on distributed systems. This paper focuses on seismic wave propagation problems as a representative use case to explore the challenges of modeling at scale. We employ the SimGrid simulation toolkit, a versatile framework for simulating distributed systems, to analyze the performance of large-scale applications. Particular emphasis is placed on the role of critical networking characteristics, such as bandwidth and topology, in influencing overall scalability and performance.