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Journal articles
Performance Analysis of Modified Gram-Schmidt Cholesky Implementation on 16 bits-DSP-chip
Abstract : This paper focuses on the performance analysis of a linear system solving based on Cholesky decomposition and QR factorization, implemented on 16bits fixed-point DSP-chip (TMS320C6474). The classical method of Cholesky decomposition has the advantage of low execution time. However, the modified Gram-Schmidt QR factorization performs better in term of robustness against the round-off error propagation. In this study, we have proposed a third method called Modified Gram-Schmidt Cholesky Decomposition. We have shown that it provides a compromise of the two performance criterias cited above. A joint theoretical and experimental analysis of global performance of the three methods has been presented and discussed.
Cited literature [10 references]
https://hal-cnam.archives-ouvertes.fr/hal-02448976
Contributor : Christophe Alexandre <>
Submitted on : Tuesday, February 11, 2020 - 12:57:10 PM
Last modification on : Thursday, February 13, 2020 - 11:05:02 AM
Long-term archiving on: : Tuesday, May 12, 2020 - 2:06:43 PM
Contributor : Christophe Alexandre <>
Submitted on : Tuesday, February 11, 2020 - 12:57:10 PM
Last modification on : Thursday, February 13, 2020 - 11:05:02 AM
Long-term archiving on: : Tuesday, May 12, 2020 - 2:06:43 PM
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IJCDS020103.pdf
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