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Block Factorizations on a Cluster of RS/6000s

File(s)
92-088.pdf (222.8 KB)
92-088.ps (556.14 KB)
Permanent Link(s)
https://hdl.handle.net/1813/5470
Collections
Cornell Theory Center Technical Reports
Author
Henry, Greg
Hoisie, Adolfy
Abstract

This paper discusses optimizing computational linear algebra algorithms on a ring cluster of IBM RS/6000s. We offer the results of a block Cholesky factorization and the underlying BLAS to demonstrate the advantage of using blocking algorithms on such architectures. A thorough analysis of the complexities of the problem is provided. Different communication protocols, serial versus parallel execution, and optimization of data traffic is explored. We provide insight into some of the techniques we have observed in exploiting this particular design. The implementations demonstrate that this important architecture can be utilized effectively for sufficiently large dense matrix computations.

Date Issued
1992-02
Publisher
Cornell University
Keywords
theory center
Previously Published as
http://techreports.library.cornell.edu:8081/Dienst/UI/1.0/Display/cul.tc/92-088
Type
technical report

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