EPJ Web Conf.
Volume 247, 2021PHYSOR2020 – International Conference on Physics of Reactors: Transition to a Scalable Nuclear Future
|Number of page(s)||8|
|Published online||22 February 2021|
LOAD BALANCING ANGULAR ADAPTIVITY ON ENERGY DEPENDENT REACTOR PROBLEMS
1 Applied Modelling and Computation Group, Imperial College London London SW7 2AZ, UK
2 ANSWERS Software Service, Wood PLC Kimmeridge House, Dorset Green Technology Park, Winfrith Newburgh, Dorchester, Dorset, DT2 8ZB
3 AWE, Aldermaston, Reading, RG7 4PR, UK
Published online: 22 February 2021
This paper presents a novel parallel algorithm capable of solving problems with multiple energy groups, such as reactor core problems, using energy dependent angular hadaptivity coupled with Dynamic Load Balancing (DLB). We use the C5G7 NEA benchmark as an example with our in-house code FETCH2 and compare runtimes and Continuous Degrees of Freedom (CDOFs) between energy independent angular adapting runs with and without DLB. Our results demonstrate a 32% reduction in CDOFs and a 38% reduction in runtime in favour of the energy dependent angular adaptivity runs with DLB when compared to energy independent angular adaptivity.
Key words: dynamic load balancing / angular adaptivity / reactor physics
© The Authors, published by EDP Sciences, 2021
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