About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithm Development in Materials Science and Engineering
|
Presentation Title |
Tusas: A Modern Computational Approach for Microstructure Evolution Toward Exascale |
Author(s) |
Supriyo Ghosh, Christopher K. Newman, Marianne M. Francois |
On-Site Speaker (Planned) |
Supriyo Ghosh |
Abstract Scope |
Predictive microstructure evolution in materials during additive manufacturing is a critical challenge problem for the exascale computing project. We address this challenge using a multi-GPU/CPU-based hybrid implementation of quantitative phase-field methods for alloy solidification. We use our in-house Tusas code for solidification simulations. Tusas is a general, flexible, open-source tool developed in C++ with advanced numerical algorithms using finite-element discretization for unstructured meshes and is optimized to run efficiently on massively parallel heterogeneous supercomputers. Our computational approach is analyzed using appropriate validation and verification models, algorithmic performance, parallel scalability, and large-scale long-time solidification simulations. Finally, we characterize the evolution of microstructure characteristics, such as cellular spacing and solute segregation, from the solidification simulations relevant to exascale applications. (LA-UR-20-24954) |
Proceedings Inclusion? |
Planned: |