Automatic Generation of Parallel Code for Hessian Computations

Automatic Generation of Parallel Code for Hessian Computations
复制标题

自动生成 Hessian 计算的并行代码

DOI:
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发表时间:
2005
期刊:
International Workshop on OpenMP
影响因子:
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通讯作者:
A. Vehreschild
A. Vehreschild
中科院分区:
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文献类型:
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作者:
H. M. Bücker;Arno Rasch;A. Vehreschild

文献摘要

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给定一个计算某个函数的程序,自动微分可用于机械地生成另一个能够评估该函数的一阶和高阶导数的程序。提出了一种通过自动微分计算 Hessians 的新策略,其中使用 OpenMP 自动并行化生成的代码。该方法用于计算大气参考模型的二阶导数,并报告了 Sun Fire E6900 系统的性能结果。
Given a program to compute some function, automatic differentiation can be used to mechanically generate another program capable of evaluating first- and higher-order derivatives of that function. A new strategy for the computation of Hessians by automatic differentiation is proposed where the generated code is automatically parallelized using OpenMP. The approach is applied to compute second-order derivatives of an atmospheric reference model and performance results on a Sun Fire E6900 system are reported.