Abstract
PDT, Texas A&M’s massively parallel deterministic transport sweep code, has the capability to sweep on unstructured grids. In order to combat the inherent imbalance (inequivalent amount of work per processor) of unstructured meshes for transport sweeps, we implemented two automated load balancing algorithms: the original load balancing algorithm and the load balancing by dimension algorithm. In a parametric study, the original load balancing algorithm improved balance by a maximum of 89% with a mean improvement of 16.9%, while the load balancing by dimension algorithm improved balance by a maximum of 93.8% with a mean improvement of 32.3%.
| Original language | English |
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| Title of host publication | International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019 |
| Publisher | American Nuclear Society |
| Pages | 2150-2159 |
| Number of pages | 10 |
| ISBN (Electronic) | 9780894487699 |
| State | Published - 2019 |
| Externally published | Yes |
| Event | 2019 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019 - Portland, United States Duration: Aug 25 2019 → Aug 29 2019 |
Publication series
| Name | International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019 |
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Conference
| Conference | 2019 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019 |
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| Country/Territory | United States |
| City | Portland |
| Period | 08/25/19 → 08/29/19 |
Funding
This material is based upon work supported by the Department of Energy, National Nuclear Security Administration, under Award Number(s) DE-NA0002376.
Keywords
- Load balancing
- Massively parallel
- Transport sweep
- Unstructured