Application of graph alignment techniques for identifying sources of non-determinism in MPI simulations

Dhroov Pandey, Jack Marquez, Michela Taufer, Sanjukta Bhowmick, Department of Computer Science and Engineering, University of North Texas, Department of Electrical Engineering and Computer Science, University of Tennessee

The International Journal of High Performance Computing Applications

Published online on January 31, 2026

Abstract

The International Journal of High Performance Computing Applications, Volume 40, Issue 3, Page 367-382, May 2026.
Scientific high performance computing (HPC) applications employ asynchronous executions of MPI calls to improve scalability and performance. The asynchronous calls can lead to non-determinism (ND) in execution, particularly for large exascale simulations. ...