TBB swMATH ID: 29299 Software Authors: Descombes, Stéphane; Duarte, Max; Dumont, Thierry; Guillet, Thomas; Louvet, Violaine; Massot, Marc Description: Task-based adaptive multiresolution for time-space multi-scale reaction-diffusion systems on multi-core architectures. A new solver featuring time-space adaptation and error control has been recently introduced to tackle the numerical solution of stiff reaction-diffusion systems. Based on operator splitting, finite volume adaptive multiresolution and high order time integrators with specific stability properties for each operator, this strategy yields high computational efficiency for large multidimensional computations on standard architectures such as powerful workstations. However, the data structure of the original implementation, based on trees of pointers, provides limited opportunities for efficiency enhancements, while posing serious challenges in terms of parallel programming and load balancing. The present contribution proposes a new implementation of the whole set of numerical methods including Radau5 and ROCK4, relying on a fully different data structure together with the use of a specific library, TBB, for shared-memory, task-based parallelism with work-stealing. The performance of our implementation is assessed in a series of test-cases of increasing difficulty in two and three dimensions on multi-core and many-core architectures, demonstrating high scalability. Homepage: http://smai-jcm.cedram.org/item?id=SMAI-JCM_2017__3__29_0 Related Software: AMROC; WABBIT; MFC; ECOGEN; HE-E1GODF; PLUM; RAMSES; Intel TBB; radau5; Racoon; Peano; Cilk; p4est; RODAS; PARAMESH Cited in: 2 Publications Standard Articles 1 Publication describing the Software, including 1 Publication in zbMATH Year Task-based adaptive multiresolution for time-space multi-scale reaction-diffusion systems on multi-core architectures. Zbl 1416.65184Descombes, Stéphane; Duarte, Max; Dumont, Thierry; Guillet, Thomas; Louvet, Violaine; Massot, Marc 2017 all top 5 Cited by 9 Authors 1 Adami, Stefan 1 Adams, Nikolaus A. 1 Descombes, Stéphane 1 Duarte, Max 1 Dumont, Thierry 1 Guillet, Thomas 1 Hoppe, Nils 1 Louvet, Violaine 1 Massot, Marc Cited in 2 Serials 1 Computer Methods in Applied Mechanics and Engineering 1 SMAI Journal of Computational Mathematics Cited in 4 Fields 1 Partial differential equations (35-XX) 1 Numerical analysis (65-XX) 1 Computer science (68-XX) 1 Fluid mechanics (76-XX) Citations by Year