parafish: A parallel FE–PN neutron transport solver based on domain decomposition. A new core solver named parafish is presented for the solution of large neutron transport core calculations. The second-order even-parity form of the time-independent Boltzmann transport equation is solved using an innovative algebraic domain-decomposition method. The spatio-angular discretization is performed using non-conforming finite elements and spherical harmonic expansions (PN method). The parafish code allows one processor to handle more than one domain. This enables proper evaluations of the speed-up. Also, this enables to show that the domain-decomposition method not only performs well in parallel calculations, but also has an inherent acceleration potential. That is, it yields acceleration even without increasing the number of processors.
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References in zbMATH (referenced in 3 articles )
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- Kong, Fande; Wang, Yaqi; Gaston, Derek R.; Permann, Cody J.; Slaughter, Andrew E.; Lindsay, Alexander D.; DeHart, Mark D.; Martineau, Richard C.: A highly parallel multilevel Newton-Krylov-Schwarz method with subspace-based coarsening and partition-based balancing for the multigroup neutron transport equation on three-dimensional unstructured meshes (2020)
- Badri, M. A.; Jolivet, P.; Rousseau, B.; Favennec, Y.: High performance computation of radiative transfer equation using the finite element method (2018)
- Jamelot, Erell; Ciarlet, Patrick: Fast non-overlapping Schwarz domain decomposition methods for solving the neutron diffusion equation (2013)