Using domain decomposition in the multigrid NAS parallel benchmark on the Fujitsu VPP500
Conference
·
OSTI ID:125538
- Fujitsu Systems Business of America, Inc., Snata Clara, CA (United States); and others
In this paper, we demonstrate how domain decomposition can be applied to the multigrid algorithm to convert the code for MPP architectures. We also discuss the performance and scalability of this implementation on the new product line of Fujitsu`s vector parallel computer, VPP500. This computer has Fujitsu`s well-known vector processor as the PE each rated at 1.6 C FLOPS. The high speed crossbar network rated at 800 MB/s provides the inter-PE communication. The results show that the physical domain decomposition is the best way to solve MG problems on VPP500.
- OSTI ID:
- 125538
- Report Number(s):
- CONF-950212--
- Country of Publication:
- United States
- Language:
- English
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