Enhancing Scalability of Sparse Direct Methods
Conference
·
OSTI ID:928386
TOPS is providing high-performance, scalable sparse direct solvers, which have had significant impacts on the SciDAC applications, including fusion simulation (CEMM), accelerator modeling (COMPASS), as well as many other mission-critical applications in DOE and elsewhere. Our recent developments have been focusing on new techniques to overcome scalability bottleneck of direct methods, in both time and memory. These include parallelizing symbolic analysis phase and developing linear-complexity sparse factorization methods. The new techniques will make sparse direct methods more widely usable in large 3D simulations on highly-parallel petascale computers.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Advanced ScientificComputing Research
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 928386
- Report Number(s):
- LBNL-63247; R&D Project: KS1210; BnR: KJ0101010; TRN: US0804128
- Resource Relation:
- Conference: SciDAC 2007, Boston, USA, June 24-28,2007
- Country of Publication:
- United States
- Language:
- English
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