Postdoctoral Researcher in Numerical Mathematics or

vor 4 Wochen


Nuernberg, Deutschland MathHire.org Vollzeit

The School of Computation, Information and Technology at the Technical University of Munich (TUM)

**Postdoctoral Researcher in numerical mathematics / computer science (M/F/d, 100%)**

The BMBF-funded position is located within the research project**Multiphysics simulations for geodynamics on heterogeneous exascale systems**at the Chair of Numerical Analysis, led by Prof. Dr. Barbara Wohlmuth in the TUM Department of Mathematics. We seek a postdoctoral researcher, with starting date as soon as possible.

This is a 100% position at German Civil Service salary level TV-L E13, and is financed initially until October 2025 with a possibility of extension. The position carries no teaching load.

**Project Summary**

The research project**Multiphysics simulations for geodynamics on heterogeneous exascale systems**is a multidisciplinary project combining the fields of mathematics, computer science, geophysics, and high-performance computing. Each field is represented by a dedicated project partner, which brings in their experience. These are the Chair of Numerical Analysis at TUM, the Chair of System Simulation at FAU Erlangen, the Chair of Geophysics at LMU München, and finally, the LRZ Garching with their knowledge about supercomputers.

Firstly, the project aims to improve the performance of the matrix-free finite-element-based framework HyTeG, in particular by techniques for data reduction through surrogate operators. Furthermore, we aim to extend the framework with mixed-precision approaches, which will be implemented and analyzed.

Secondly, we aim at a volume coupling of the high-performance packages waLBerla, HyTeG, and MesaPD to solve complex multiphysics problems. The coupling is done across package boundaries. This also requires more sophisticated approaches in load-balancing.

**Tasks**in the project include
- theefficientimplementationofnewmodels,methods,andalgorithmsintoexisting_high-performance_frameworks,
- the fast prototyping of new ideas in individualcode,
- aswellasthepresentationoftheresultstothescientificcommunityinjournals,atconferences,andaslecture contributions forstudents.

**Requirements**for the position:

- APh.D.inthefieldofAppliedMathematics,ComputerScience,ComputationalScienceandEngineering,orsimilar.
- a strong background**either**in high-performance computing**or**in numerical analysis.
- Knowledge of numerics as part of a degree program. In particular, knowledge about**finite-element analysis**is an absolute_must_.Familiaritywith_iterativesolvers_,_preconditioners_,_multigridmethods_,and_mixed-precision_approachesis optional but extremelyuseful.
- Goodprogrammingskillsandexperiencein**C++**anditscommonprogramming_idioms_and_designpatterns_. KnowledgeofMATLAB,Python,Julia,orasimilarscriptinglanguageisnecessaryforprototyping.
- Interestandaffinityfor**high-performancecomputing**.Youshouldhaveexperiencewith the_roofline model_and familiarity with a_profiler_.Experience with_GPUs_is abonus.
- Fluencyinwrittenandspoken_English_. German language skills are not a prerequisite for the position.

**We offer**
- a position within a young, dynamic, and international team of scientists from various disciplines, as well as cooperation with international partners,
- an exciting and varied project with many different aspects and possibilities for expansion,
- modern hardware and infrastructure at the workplace, from compute
- and GPU servers to supercomputers,
- a salary according to the German civil service rates (TV-L, level E13), and
- the environment of a renowned and modern university in a beautiful city close to the Alps.



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