| TESTING DIFFERENT CONJUGATE GRADIENT METHODS FOR LARGE—SCALE UNCONSTRAINED OPTIMIZATION |
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| 作者姓名： | Yu-hongDai QinNi |
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| 作者单位： | [1]LSEC,ICMSEC,AcademyofMathematicsandSystemSciences,ChineseAcademyofSciences,Beijing100080,China [2]CollegeofScience,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China |
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| 基金项目： | Research partially supported by Chinese NSF grants 19801033,19771047 and 10171104 |
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| 摘 要： | In this PaPer we test different conjugate gradient (CG) methods for solving large-scale unconstrained optimization problems.The methods are divided in two groups:the first group includes five basic CG methods and the second five hybrid CG methods.A collection of medium-scale and large-scale test problems are drawn from a standard code of test problems.CUTE.The conjugate gradient methods are ranked according to the numerical results.Some remarks are given.
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| 关 键 词： | 共轭梯度法 大尺度无约束最优化问题 数值检验 CUTE PRP方法 HS方法 DYHS2方法 |
TESTING DIFFERENT CONJUGATE GRADIENT METHODS FOR LARGE-SCALE UNCONSTRAINED OPTIMIZATION |
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| Yu-hongDai QinNi.TESTING DIFFERENT CONJUGATE GRADIENT METHODS FOR LARGE-SCALE UNCONSTRAINED OPTIMIZATION[J].Journal of Computational Mathematics,2003,21(3):311-320. |
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| Authors: | Yu-hong Dai |
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| Abstract: | In this paper we test different conjugate gradient (CG) methods for solving large-scale unconstrained optimization problems. The methods are divided in two groups: the first group includes five basic CG methods and the second five hybrid CG methods. A collection of medium-scale and large-scale test problems are drawn from a standard code of test problems, CUTE. The conjugate gradient methods are ranked according to the numerical results. Some remarks are given. |
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| Keywords: | Conjugate gradient methods Large-scale Unconstrained optimization Numerical tests |
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