$calcgrid

The grid number of calculation. For example, length of device is 100nm, and we wanna set the grid size as 1A. So, the total grid number is equal to integer(total layer thickness / dz ) +1. In this case, it should be 1001.

$calcgrid
1001

The $calcgrid in GUI interface
1.Press the Contact Setting.
2.Calculate the thickness of all layers.
3.Set the size of dz to adjust the total grid number.