<div>Dear Gabriele Sclauzero:</div>
<div><br>>Just one additional note of caution: kpoints.x reduces the number of k-points (and compute</div>
<div>>weights) according to the symmetry of the bravais lattice only, while the subroutine<br>>kpoint_grid in PW/ used by pw.x takes into account the crystal symmetry (which can be<br>>lower than the lattice symmetry if you have more than one atom per cell or non-collinear<br>
>magnetism)</div>
<div> </div>
<div>I am confused with your statement:"crystal symmetry can be lower than the lattice symmetry if you have more than one atom per cell".</div>
<div>Could you explain it more clearly? </div>
<div>Or could you give me a simple example?</div>
<div>Thank you ：）</div>
<div><br>____________________________________<br>Hui Wang<br>School of physics, Nankai University, Tianjin, China </div>