ARCHIVED: Petascale computing on the TeraGrid: Supernova Simulation With CHIMERA
Note: The project described in this document is funded by the National Science Foundation (NSF) Office of Cyberinfrastructure (OCI) to use TeraGrid's petascale environments for highly advanced scientific analysis and simulations that advance the frontiers of scientific and engineering research. For more, see ARCHIVED: Petascale computing on the TeraGrid.
The availability of petascale compute resources brings with it the promise of substantial increases in physical fidelity for a host of scientific problems, but the architectural features of petascale machines will require considerable innovation for effective use.
This three-part collaborative project addresses several of the most immediate development needs for CHIMERA, a massively parallel multi-physics code designed expressly to simulate core-collapse supernovae. These stellar explosions produce most of the elements in the universe, are prodigious sources of neutrinos, gravitational waves, and photons, and lead to the formation of neutron stars and black holes.
The extension of CHIMERA to petascale platforms will involve:
- A complete, tested, three-dimensional spatial domain decomposition for the hydrodynamics, including a strategy to handle coordinate singularities in spherical polar coordinates
- A scalable three-dimensional Poisson solver for the gravitational field, both Newtonian and general relativistic
- A flexible, modular system for parallel I/O
- Multi-core solutions for the linear systems dominating the thermonuclear kinetics and neutrino transport
- Investigating Partitioned Global Address Space (PGAS) languages to overlap computation and communication
- Improvements to the physical models and algorithms
For more, see award abstracts #0749248 and #0749204 on the National Science Foundation (NSF) web site.
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Last modified on 2018-01-18 15:57:52.