The Trilinos project is a community effort to develop scientific and mathematical libraries that enable the solution of large-scale multi-physics, multi-scale and related modeling and simulation problems on leadership computing platforms. I led the project from its inception in 2000 until retiring from Sandia National Laboratories in 2024. Trilinos was a 2004 R&D 100 Award winner.

GitHub: https://github.com/trilinos/Trilinos. Website: https://trilinos.github.io.