Parallel-in-time Integration Schemes

Friday, June 3 2011

USI

Università della Svizzera italiana, Lugano

Description: With high performance computing systems featuring growing number of nodes, efficient strategies to parallelize all parts of a program become increasingly important. While parallelization in space by domain decomposition is already widely used, for a fixed spatial resolution this approach scales well only up to some critical number of processors beyond which the subdomains are too small and communication becomes the bottleneck. Parallel-in-time Integration schemes provide an additional direction of parallelization, potentially allowing to reduce total execution time of parallel programs below the point where a pure spatial parallelization saturates. One algorithm from this field that received a lot of attention over the past years is "Parareal", which has been successfully applied to a broad range of problems. The workshop is dedicated to the presentation of recent developments, advances and applications of parallel-in-time methods

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Organizing Committee: Prof. Rolf Krause, Dr. Daniel Ruprecht

The workshop is organized within the HP2PC initiative: www.hp2c.ch

Invited speakers:

Prof. Michael Minion, University of North Carolina

Prof. Martin Gander, University of Geneva

Julien Cortial, Stanford University

Dr. Stefan Güttel, University of Geneva

Program

9.00 – 9.20  
    

Registration

9.20 – 9.30
    

Opening

9.30 – 10.30
    

Martin J. Gander, University of Geneva

“Space-time Parallel Methods: From Waveform Relaxation tothe Parareal Algorithm”

Slides

10.30 – 10.45
    

Coffee break

10.45 – 11.45
    

Julien Cortial, Stanford University

”Time-Parallel Methods for Accelerating the Solution ofStructural Dynamics Problems”

11.45 – 13.00
    

Lunch Break

13.00 – 14.00
    

Michael L. Minion, University of North Carolina

“Efficient Parallel in Time Methods for Partial Differential Equations”

14.00 – 14.15
    

Coffee break

14.15 – 15.15
    

Stefan Güttel, University of Geneva

“Time-Parallel Integration of Linear Initial Value Problems”

Slides

15.15 – 15.30  
    

Closing