Comparison of Four Parallel Algorithms For Domain Decomposed Implicit Monte Carlo
Journal Article
·
· Journal of Computational Physics
OSTI ID:883764
We consider two existing asynchronous parallel algorithms for Implicit Monte Carlo (IMC) thermal radiation transport on spatially decomposed meshes. The two algorithms are from the production codes KULL from Lawrence Livermore National Laboratory and Milagro from Los Alamos National Laboratory. Both algorithms were considered and analyzed in an implementation of the KULL IMC package in ALEGRA, a Sandia National Laboratory high energy density physics code. Improvements were made to both algorithms. The improved Milagro algorithm performed the best by scaling nearly perfectly out to 244 processors.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 883764
- Report Number(s):
- UCRL-JRNL-208745; JCTPAH; TRN: US200615%%225
- Journal Information:
- Journal of Computational Physics, Vol. 212, Issue 2; ISSN 0021-9991
- Country of Publication:
- United States
- Language:
- English
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