| TERRA-NEO Mantle convection is a vital component of the Earth system.
The relentless deformation taking place in the mantle by
viscous creep has a far greater impact on our planet than
might be immediately evident. Immense forces are at work in
mantle convection cells: Continuously reshaping Earth’s
surface, the mantle provides the enormous driving forces
necessary to support large-scale horizontal motion, in the
form of plate tectonics and associated earthquake and
mountain building activity. At the same time the mantle
induces substantial vertical motion in the form of
dynamically maintained topography through lateral pressure
gradients beneath tectonic plates. This vertical motion is
perhaps the most spectacular manifestation of mantle
convection - and its most defining and enduring impact upon
the entire Earth system.
Mantle convection modeling relies upon sophisticated
computational modeling and is a classical grand challenge
application requiring extremely large grids and many time
steps to represent the system with spatial and temporal
resolutions fine enough to allow for the use of earth-like
physical parameters. The mantle is characterized by strongly
variable (e.g., stress-, temperature-, and pressure-dependent)
viscosities with local contrasts spanning several
orders of magnitude and demanding adaptivity in order to
capture localization phenomena.
TERRA-NEO is an ambitious project to construct a next-
generation mantle-circulation model. The time has come to
leap forward and to leverage the vast computing power that
will become available with exascale computing to enable
simulation-based breakthrough results in our understanding
of the solid Earth.
| Beteiligte:
Prof. Dr. Ulrich Rüde, Prof. Dr. Gerhard Wellein, Dr.-Ing. Björn Gmeiner, M.Sc.(hons), Dr.-Ing. Jan Eitzinger, Bunge, Hans-Peter, Mohr, Marcus, Weismüller, Jens, Wohlmuth, Barbara, Waluga, Christian, Dr.-Ing. Dominik Bartuschat, M.Sc.(hons); Dipl.-Ing. (FH)
Stichwörter:
convection, Multigrid, Finite Elements, Supercomputing
Beginn: 1.1.2012
| | Publikationen |
|---|
Gmeiner, Björn ; Mohr, M. ; Rüde, Ulrich: Hierarchical Hybrid Grids for Mantle Convection: A First Study. In: TU München (Veranst.) : Proceedings of the 11th International Symposium on Parallel and Distributed Computing (11th International Symposium on Parallel and Distributed Computing München 25.--29.06.2012). 2012, S. 309-314. - ISBN 978-1-4673-2599-8
[doi>10.1109/ISPDC.2012.49] | Weismüller, Jens ; Gmeiner, Björn ; Ghelichkhan, S. ; Huber, Markus ; John, Lukas ; Wohlmuth, Barbara ; Rüde, Ulrich ; Bunge, H.-P.: Fast asthenosphere motion in high-resolution global mantle flow models. In: Geophysical Research Letters 42 (2015), Nr. 18, S. 7429-7435
[doi>10.1002/2015GL063727] | Gmeiner, Björn ; Rüde, Ulrich ; Stengel, Holger ; Waluga, Christian ; Wohlmuth, Barbara: Performance and Scalability of Hierarchical Hybrid Multigrid Solvers for Stokes Systems. In: SIAM Journal on Scientific Computing 37 (2015), Nr. 2, S. C143--C168
[doi>10.1137/130941353] | | Gmeiner, Björn ; Rüde, Ulrich ; Stengel, Holger ; Waluga, C. ; Wohlmuth, Barbara: Towards Textbook Efficiency for Parallel Multigrid. In: Numerical Mathematics: Theory, Methods and Application 8 (2015), Nr. 1, S. 22-46 | | Weißmüller, Johannes ; Gmeiner, Björn ; Mohr, Marcus ; Waluga, C. ; Wohlmuth, Barbara ; Rüde, Ulrich ; Bunge, H.-P.: Mantle convection on modern supercomputers. In: EGU General Assembly (Hrsg.) : EGU General Assembly Conference Abstracts. Bd. 17. Harvard : EGU General Assembly, 2015, S. 1. | Kuckuk, Sebastian ; Gmeiner, Björn ; Köstler, Harald ; Rüde, Ulrich: A Generic Prototype to Benchmark Algorithms and Data Structures for Hierarchical Hybrid Grids. In: Bader, Michael ; Bode, Arndt ; Bungartz, Hans-Joachim ; Gerndt, Michael ; Joubert, Gerhard R. ; Peters, Frans (Hrsg.) : Parallel Computing: Accelerating Computational Science and Engineering (CSE) (ParCo 2013 Garching 10.-13.9.2013). 2014, S. 813-822.
[doi>10.3233/978-1-61499-381-0-813] | | Gmeiner, Björn ; Waluga, C. ; Wohlmuth, B:: Local mass-corrections for continuous pressure approximations of incompressible flow. In: SIAM J. Numer. Anal. 52 (2014), Nr. 6, S. 2931-2956 | | Gmeiner, Björn ; Köstler, Harald ; Stürmer, Markus ; Rüde, Ulrich: Parallel multigrid on hierarchical hybrid grids: a performance Study on current high performance computing clusters. In: Concurrency and Computation: Practice and Experience 26 (2014), Nr. 1, S. 217-240 | Gmeiner, Björn ; Rüde, Ulrich ; Wasniewski, J.: Peta-Scale Hierarchical Hybrid Multigrid Using Hybrid Parallelization. In: Lirkov, I. ; Margenov, S. (Hrsg.) : Large-Scale Scientific Computing. Bd. 8353. Berlin, Heidelberg, New York : Springer, 2014, (Lecture Notes in Computer Science), S. 439-447. - ISBN 978-3-662-43879-4
[doi>10.1007/978-3-662-43880-0] | Wohlmuth, B. ; Gmeiner, Björn ; Stengel, H. ; Rüde, Ulrich ; Waluga, C.: Dual and Hybrid Hierarchical Grids for Fast Geophysical Flow Simulations. In: Bank, R.E. ; Grasedyck, L. ; Hackbusch, W. ; Wittum, G. (Hrsg.) : MFO Report Nr. 24 (Schnelle Löser für Partielle Differentialgleichungen Oberwolfach 11.-16.5.2014). Bd. 24. Oberwolfach : EMS Publishing House, 2014, S. 1356-1359.
[doi>10.4171/OWR/2014/24] |
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