• Corpus ID: 231632916

Space-time block preconditioning for incompressible flow

@article{Danieli2021SpacetimeBP,
  title={Space-time block preconditioning for incompressible flow},
  author={Federico Danieli and Ben S. Southworth and Andrew J. Wathen},
  journal={ArXiv},
  year={2021},
  volume={abs/2101.07003}
}
Parallel-in-time methods have become increasingly popular in the simulation of timedependent numerical PDEs, allowing for the efficient use of additional MPI processes when spatial parallelism saturates. Most methods treat the solution and parallelism in space and time separately. In contrast, all-at-once methods solve the full space-time system directly, largely treating time as simply another spatial dimension. All-at-once methods offer a number of benefits over separate treatment of space… 

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