cglen

Specify the length of the coarse grid (in a focusing calculation) for an automatic multigrid (mg-auto, mg-para) Poisson-Boltzmann calculation. This may be different in each direction.

cglen {xlen ylen zlen}

This is the starting mesh, so it should be large enough to complete enclose the biomolecule and ensure that the chosen boundary condition (see bcfl) is appropriate.

xlen ylen zlen

Grid lengths (floating point numbers) in the x-, y-, and z-directions in Å.