Robust Numerical Tracking of One Path of a Polynomial Homotopy on Parallel Shared Memory Computers
Robust Numerical Tracking of One Path of a Polynomial Homotopy on Parallel Shared Memory Computers
复制标题
并行共享内存计算机上多项式同伦一条路径的鲁棒数值跟踪
DOI:
10.1007/978-3-030-60026-6_33
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Verschelde, Jan
中科院分区:
文献类型:
--
作者:
Telen, Simon;Van Barel, Marc;Verschelde, Jan
We consider the problem of tracking one solution path defined by a polynomial homotopy on a parallel shared memory computer. Our robust path tracker applies Newton’s method on power series to locate the closest singular parameter value. On top of that, it computes singular values of the Hessians of the polynomials in the homotopy to estimate the distance to the nearest different path. Together, these estimates are used to compute an appropriate adaptive step size. Forn-dimensional problems, the cost overhead of our robust path tracker isO(n), compared to the commonly used predictor-corrector methods. This cost overhead can be reduced by a multithreaded program on a parallel shared memory computer.
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DOI:
10.1017/cbo9780511973345.006
发表时间:
2011
期刊:
Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas
影响因子:
--
作者:
J. W. McCormick;Frank Singhoff;J. Hugues
通讯作者:
J. Hugues
DOI:
10.1016/j.laa.2017.10.022
发表时间:
2016
期刊:
ArXiv
影响因子:
--
作者:
N. Bliss;J. Verschelde
通讯作者:
J. Verschelde
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
J. W. McCormick;F. Singhoff;J. Hugues
通讯作者:
J. Hugues
DOI:
--
发表时间:
2011
期刊:
Computer Algebra in Scientific Computing
影响因子:
--
作者:
Danko Adrovic;J. Verschelde
通讯作者:
J. Verschelde
影响因子:
2.1
作者:
J. Verschelde
通讯作者:
J. Verschelde