7 papers
The Parallel Full Approximation Scheme in Space and Time for a Parabolic Finite Element Problem
Oliver Sander, Ruth Schöbel, Robert Speck
The parallel full approximation scheme in space and time (PFASST) is a parallel-in-time integrator that allows to integrate multiple time-steps simultaneously. It has been shown to…
Twelve Ways To Fool The Masses When Giving Parallel-In-Time Results
Sebastian Goetschel, Michael Minion, Daniel Ruprecht +1
Getting good speedup -- let alone high parallel efficiency -- for parallel-in-time (PinT) integration examples can be frustratingly difficult. The high complexity and large number…
Resiliency in Numerical Algorithm Design for Extreme Scale Simulations
Emmanuel Agullo, Mirco Altenbernd, Hartwig Anzt +33
This work is based on the seminar titled ``Resiliency in Numerical Algorithm Design for Extreme Scale Simulations'' held March 1-6, 2020 at Schloss Dagstuhl, that was attended by a…
PFASST-ER: Combining the Parallel Full Approximation Scheme in Space and Time with parallelization across the method
Ruth Schöbel, Robert Speck
To extend prevailing scaling limits when solving time-dependent partial differential equations, the parallel full approximation scheme in space and time (PFASST) has been shown to…
Time-parallel simulation of the Schrödinger Equation
Hannah Rittich, Robert Speck
The numerical simulation of the time-dependent Schrödinger equation for quantum systems is a very active research topic. Yet, resolving the solution sufficiently in space and time…
Using performance analysis tools for parallel-in-time integrators -- Does my time-parallel code do what I think it does?
Robert Speck, Michael Knobloch, Sebastian Lührs +1
While many ideas and proofs of concept for parallel-in-time integration methods exists, the number of large-scale, accessible time-parallel codes is rather small. This is often due…