MueLu is a library within the Trilinos software project [An overview of Trilinos, Technical Report SAND2003-2927, Sandia National Laboratories, 2003] and provides a framework for parallel multigrid preconditioning methods for large sparse linear systems. While providing efficient implementations of modern multigrid methods based on smoothed aggregation and energy minimization concepts, MueLu is designed to be customized and extended. This article gives an overview of design considerations for the MueLu package: user interfaces, internal design, data management, usage of modern software constructs, leveraging Trilinos capabilities, linear algebra operations and advanced application.

中文翻译：

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灵活的多网格预处理库的设计注意事项

MueLu是Trilinos软件项目中的一个库[Trilinos概述，技术报告SAND2003-2927，Sandia国家实验室，2003]，并为大型稀疏线性系统的并行多网格预处理方法提供了框架。在提供基于平滑聚合和能量最小化概念的现代多网格方法的有效实现的同时，MueLu旨在进行定制和扩展。本文概述了MueLu软件包的设计注意事项：用户界面，内部设计，数据管理，现代软件结构的使用，利用Trilinos功能，线性代数运算和高级应用程序。