Scaling Algebraic Multigrid Solvers: On the Road to Exascale
Algebraic Multigrid (AMG) solvers are an essential component of many large-scale scientific simulation codes. Their continued numerical scalability and efficient implementation is critical for preparing these codes for exascale. Our experiences on modern multi-core machines show that significant challenges must be addressed for AMG to perform well on such machines. We discuss our experiences and describe the techniques we have used to overcome scalability challenges for AMG on hybrid architectures in preparation for exascale.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 1018825
- Report Number(s):
- LLNL-PROC-463941; TRN: US201114%%358
- Resource Relation:
- Conference: Presented at: Competence in High Performance Computing - CiHPC 2010, Schwetzingen, Germany, Jun 22 - Jun 24, 2010
- Country of Publication:
- United States
- Language:
- English
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