We herein describe the performance evaluation of a modular implementation of the MGRIT (MultiGrid-In-Time) algorithm within the context of the PETSc (the Portable, Extensible Toolkit for Scientific computing) library. Our aim is to give the PETSc users the opportunity of testing the MGRIT parallel-in-time approach as an alternative to the Time Stepping integrator (TS), when solving their problems arising from the discretization of linear evolutionary models. To this end, we analyzed the performance parameters of the algorithm in order to underline the relationship between the configuration factors and problem characteristics, intentionally overlooking any accuracy issue and spacial parallelism.
CITATION STYLE
Mele, V., Romano, D., Constantinescu, E. M., Carracciuolo, L., & D’Amore, L. (2019). Performance evaluation for a PETSc parallel-in-time solver based on the MGRIT algorithm. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 11339 LNCS, pp. 716–728). Springer Verlag. https://doi.org/10.1007/978-3-030-10549-5_56
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