Rutherford Appleton Laboratory Technical Reports最新文献

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Experiments with sparse Cholesky using a sequential task-flow implementation 实验用稀疏Cholesky实现了一个顺序任务流
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.3934/NACO.2018014
I. Duff, J. Hogg, Florent Lopez
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引用次数: 8
Pulsed magnetic fields and pulsed neutron sources 脉冲磁场和脉冲中子源
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.1080/10448639708231951
Uschi Steigenberger, Keith McEwen
{"title":"Pulsed magnetic fields and pulsed neutron sources","authors":"Uschi Steigenberger, Keith McEwen","doi":"10.1080/10448639708231951","DOIUrl":"https://doi.org/10.1080/10448639708231951","url":null,"abstract":"","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130799605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PARASOL an Integrated Programming Environment for Parallel Sparse Matrix Solvers 并行稀疏矩阵求解的集成编程环境
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.1007/978-1-4615-4873-7_9
P. Amestoy, I. Duff, J. L’Excellent, Peter Plecháč
{"title":"PARASOL an Integrated Programming Environment for Parallel Sparse Matrix Solvers","authors":"P. Amestoy, I. Duff, J. L’Excellent, Peter Plecháč","doi":"10.1007/978-1-4615-4873-7_9","DOIUrl":"https://doi.org/10.1007/978-1-4615-4873-7_9","url":null,"abstract":"","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116947580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Sparse system solution and the HSL Library 稀疏系统解和HSL库
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.1142/9789812709356_0005
I. Duff
{"title":"Sparse system solution and the HSL Library","authors":"I. Duff","doi":"10.1142/9789812709356_0005","DOIUrl":"https://doi.org/10.1142/9789812709356_0005","url":null,"abstract":"We consider the solution of large sparse systems, sketch their ubiquity, and briefly describe some of the algorithms used to solve these systems. The HSL mathematical software library started life in 1963 as the Harwell Subroutine Library making it one of the oldest such libraries. The main strengths of the Library lie in packages for large scale system solution. It is particularly strong in direct methods for sparse matrices and optimization. The Library has been used worldwide by a wide range of industries. We briefly discuss the history of the library and its organization and contents. We discuss the evolution of some of our current packages and the efforts to ensure reliability, robustness, and efficiency. We describe in some detail the functionality of one of our most popular sparse direct codes.","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125323783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
An Introduction to Algorithms for Nonlinear Optimization 非线性优化算法导论
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.1007/978-3-642-55692-0_4
N. Gould, S. Leyffer
{"title":"An Introduction to Algorithms for Nonlinear Optimization","authors":"N. Gould, S. Leyffer","doi":"10.1007/978-3-642-55692-0_4","DOIUrl":"https://doi.org/10.1007/978-3-642-55692-0_4","url":null,"abstract":"","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115199027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 38
Combinatorial problems in solving linear systems 求解线性系统中的组合问题
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.1201/b11644-3
I. Duff, B. Uçar
{"title":"Combinatorial problems in solving linear systems","authors":"I. Duff, B. Uçar","doi":"10.1201/b11644-3","DOIUrl":"https://doi.org/10.1201/b11644-3","url":null,"abstract":"Numerical linear algebra and combinatorial optimization are vast subjects; as is their interaction. In virtually all cases there should be a notion of sparsity for a combinatorial problem to arise. Sparse matrices therefore form the basis of the interaction of these two seemingly disparate subjects. As the core of many of today's numerical linear algebra computations consists of the solution of sparse linear system by direct or iterative methods, we survey some combinatorial problems, ideas, and algorithms relating to these computations. On the direct methods side, we discuss issues such as matrix ordering; bipartite matching and matrix scaling for better pivoting; task assignment and scheduling for parallel multifrontal solvers. On the iterative method side, we discuss preconditioning techniques including incomplete factorization preconditioners, support graph preconditioners, and algebraic multigrid. In a separate part, we discuss the block triangular form of sparse matrices.","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130456113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
MA62 - a frontal code for sparse positive definite symmetric systems from finite element applications MA62 -从有限元应用稀疏正定对称系统的正面代码
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.4203/csets.1.1
I. S. Duff, Jennifer A. Scott
{"title":"MA62 - a frontal code for sparse positive definite symmetric systems from finite element applications","authors":"I. S. Duff, Jennifer A. Scott","doi":"10.4203/csets.1.1","DOIUrl":"https://doi.org/10.4203/csets.1.1","url":null,"abstract":"","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114451581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
On implicit-factorization constraint preconditioners 关于隐式分解约束前置条件
Rutherford Appleton Laboratory Technical Reports Pub Date : 1900-01-01 DOI: 10.1007/0-387-30065-1_5
H. Dollar, N. Gould, A. Wathen
{"title":"On implicit-factorization constraint preconditioners","authors":"H. Dollar, N. Gould, A. Wathen","doi":"10.1007/0-387-30065-1_5","DOIUrl":"https://doi.org/10.1007/0-387-30065-1_5","url":null,"abstract":"","PeriodicalId":407290,"journal":{"name":"Rutherford Appleton Laboratory Technical Reports","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117288742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
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