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首页> 外文期刊>Computer physics communications >A HIGHLY FLEXIBLE TOOL FOR LARGE SCALE COMPUTATIONAL PROBLEMS IN APPLIED PHYSICS
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A HIGHLY FLEXIBLE TOOL FOR LARGE SCALE COMPUTATIONAL PROBLEMS IN APPLIED PHYSICS

机译：应用物理学中大型计算问题的高度灵活的工具

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摘要

A software package is described, the Simulation Generator (SimGen), which automatically constructs a computer simulation from a high level description of a physical problem. SimGen constructs a simulation by (i) parsing the input file, (ii) generating by symbolic manipulation the functions which are needed for a Newton method solution of the problem, and (iii) interfacing the computer generated code to an appropriate solution module. Executing the simulation solves the equations specified in the input file. The choice of numerical representation of the problem (e.g. type of finite difference scheme for a coupled set of nonlinear partial differential equations) is left to the user. Emphasis in the design of this software has been placed on generality and flexibility. The calculation of the elements of the Jacobian matrix, which is needed by Newton's method, is discussed. The syntax of the input file is well suited to specifying large sets of discrete equations. To show the ease and flexibility of the approach a semiconductor simulation is presented. [References: 12]
机译：描述了一个软件包，即模拟生成器（SimGen），该软件包根据对物理问题的高级描述自动构建计算机模拟。 SimGen通过（i）解析输入文件，（ii）通过符号操作生成问题的牛顿法解决方案所需的功能以及（iii）将计算机生成的代码与适当的解决方案模块接口来构建仿真。执行仿真可以解决输入文件中指定的方程式。问题的数字表示方式的选择（例如，一组非线性偏微分方程组的有限差分方案的类型）留给用户。该软件的设计重点是通用性和灵活性。讨论了牛顿法所需的雅可比矩阵元素的计算。输入文件的语法非常适合于指定大量离散方程。为了显示该方法的简便性和灵活性，提出了半导体仿真。 [参考：12]

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