[Wannier] error: kmesh_get_automatic

[Jonathan Yates]

On 6 Feb 2018, at 12:03, Mohammed Ghadiyali <m786g at live.co.uk> wrote:

> Dear All,
> 
> I 'm getting an error:
> 
> Your cell might be very long, or you may have an irregular MP grid
> Try increasing the parameter search_shells in the win file (default=12)

This is an issue with hexagonal cells, and fine k-point grids. There is no need to change search_shells.
All you need to do is to specify the unit cell parameters more precisely. To be specific, change the a_x to 2.13042249331 (i.e. b_y *sqrt(3)/2). 

Jonathan