Exposing Hierarchical Parallelism in the FLASH Code for Supernova Simulation on Summit and Other Architectures
Since roughly 100 million years after the big bang, the primordial elements hydrogen (H), helium (He), and lithium (Li) have been synthesized into heavier elements by thermonuclear reactions inside of the stars. The change in stellar composition resulting from these reactions causes stars to evolve over the course of their lives. Although most stars burn through their nuclear fuel and end their lives quietly as inert, compact objects, whereas others end in explosive deaths. These stellar explosions are called supernovae and are among the most energetic events known to occur in our universe. Supernovae themselves further process the matter of their progenitor stars and distribute this material into the interstellar medium of their host galaxies. In the process, they generate ~1051 ergs of kinetic energy by sending shock waves into their surroundings, thereby contributing to galactic dynamics as well.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1429211
- Journal Information:
- Exascale Scientific Applications, Chapter 4, Related Information: eBook ISBN 9781351999243
- Publisher:
- Chapman and Hall/CRC, New York,New York, United States of America
- Country of Publication:
- United States
- Language:
- English
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book | January 2006 |
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