06/30/2023
By John Cox
Candidate Name: John Cox
Degree: MS Physics
Defense Date: Wednesday, July 5, 2023
Time: 3 p.m.
Location: Wannalancit 305
Title: Runtime Reduction of a Global 3D Hybrid Particle Simulation Model
Committee Chair: Paul Song, Ph.D., Professor, Physics, UMass Lowell
Dissertation Committee Member:
Jiannan Tu, Ph.D., Research Professor, Physics, UMass Lowell
Abstract:
To numerically study Magnetosphere-Ionosphere (M-I) coupling in the topside ionosphere and inner magnetosphere, a global 3D hybrid particle simulation model (GSK3D) was previously developed by Dr. Yifan Huang. However, it ran slowly. To
reduce runtime, changes were made to reduce comparisons and improve multithreading performance. The upgraded code runs 3.82x faster than the original code. The upgraded code’s output deviates by up to a few percent, depending on species.