...
首页> 外文期刊>Computer physics communications >A new version of the CADNA library for estimating round-off error propagation in Fortran programs
【24h】

A new version of the CADNA library for estimating round-off error propagation in Fortran programs

机译:CADNA库的新版本,用于估计Fortran程序中的舍入误差传播

获取原文
获取原文并翻译 | 示例
           

摘要

The CADNA library enables one to estimate, using a probabilistic approach, round-off error propagation in any simulation program. CADNA provides new numerical types, the so-called stochastic types, on which round-off errors can be estimated. Furthermore CADNA contains the definition of arithmetic and relational operators which are overloaded for stochastic variables and the definition of mathematical functions which can be used with stochastic arguments. On 64-bit processors, depending on the rounding mode chosen, the mathematical library associated with the GNU Fortran compiler may provide incorrect results or generate severe bugs. Therefore the CADNA library has been improved to enable the numerical validation of programs on 64-bit processors.
机译:CADNA库使人们可以使用概率方法来估计任何模拟程序中的舍入误差传播。 CADNA提供了新的数值类型,即所谓的随机类型,可以在其上估算舍入误差。此外,CADNA包含对随机变量重载的算术运算符和关系运算符的定义以及可以与随机参数一起使用的数学函数的定义。在64位处理器上,取决于所选的舍入模式,与GNU Fortran编译器关联的数学库可能会提供错误的结果或生成严重的错误。因此,对CADNA库进行了改进,可以对64位处理器上的程序进行数值验证。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号