First, the solver itself must be of optimal numerical complexity - a requirement becoming more and more severe with increasing problem size - and at the same time scale efficiently on extreme scales of parallelism.
Second, simulations on exascale systems will consume a lot of electric power, requiring algorithms and implementations with low power consumption. To that end, the present project combines domain decomposition, parallel multigrid and H-matrices. This technique has the potential to gain top efficiency on extreme scales while still maintaining optimal complexity.
To further improve parallelism, this approach is combined with special methods for parallelization in time and solvers for optimization problems. Both cases have additional parallelization potential. Algorithms and implementations will be evaluated for energy efficiency in problem solving. Criteria and models for energy efficiency of numerical solvers will be developed in the project. The team has long standing experience in developing algorithms and software for large scale HPC cooperatively.
01. January 2012
31. December 2020
Green IT / HPC
Numerical Methods and Libraries
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High-Performance Computing Center Stuttgart
Nobelstraße 19, 70569 Stuttgart, Germany
+49 711 685-87269
A member of the Gauss Centre for Supercomputing, HLRS is one of three German national centers for high-performance computing.
HLRS is a central unit of the University of Stuttgart.