etol

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APBS‎ > ‎User guide‎ > ‎Running APBS‎ > ‎Input files‎ > ‎ELEC input file section‎ > ‎ELEC keywords‎ > ‎

Contents

1 Finite difference multigrid methods
2 Finite element methods

Finite difference multigrid methods

Current developmental releases of APBS provide support for the optional etol keyword to specify the tolerance for iterations of the PMG partial differential equation solver. The syntax is

   etol { tol }

where tol is the (floating point) numerical value for the error tolerance.

This keyword is optional and is intended for mg-manual, mg-auto, and mg-para calculation types.

Finite element methods

Specify the tolerance for error-based adaptive refinement during the solve-estimate-refine iterations of the finite element solver (fe-manual). The syntax is

   etol { tol }

where tol is the (floating point) numerical value for the error tolerance.

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