April 2021 to March 2024



Dr. Robert Speck

Head of the Division Mathematics and Education

Building 16.3 / Room 309

+49 2461/61-1644



Time parallelization for eXascale computing

Recent successes have established the potential of parallel-in-time integration as a powerful algorithmic paradigm to unlock the performance of exascale systems. However, these successes have mainly been achieved in a rather academic setting, without an overarching understanding. TIME-X will take the next leap in the development and deployment of this promising new approach for massively parallel HPC simulation, enabling efficient parallel-in-time integration for real-life applications. A consortium of 10 institutions from Belgium, France, Germany, and Switzerland will develop software and novel algorithmic concepts for parallel-in-time integration on current and future HPC architectures. The partners will showcase the potential in three diverse and challenging application fields with high societal impact: weather and climate, medicine, and fusion. To achieve this, the inherently interdisciplinary TIME-X consortium unites all relevant actors at the European level from numerical analysis and applied mathematics, computer science, and the selected application domains in a joint strategic research effort.

JSC will primarily work within the work packages “HPC & Implementation” (WP2) and “Impact Maximisation” (WP5). In WP2, JSC and the Hamburg University of Technology will start a joint PhD project on resilient, inexact parallel-in-time integrators, their efficient implementation, and their application. Leading WP5, JSC will furthermore manage training and tutorial activities.