i want to calculate lambda (elph coefficients)<div>i calculated scf by 16.16.16 kpoint grid </div><div>and phonon by 4.4.4 grid for my TaC (TANTALUM CARBIDE )</div><div> </div><div>but at q2r.x output shows the error </div>
<div><br></div><div><div> q-space grid ok, #points = 64</div><div><br></div><div> fft-check success (sum of imaginary terms < 10^-12)</div><div> </div><div> Preparing gamma for a2F </div><div> </div><div><br>
</div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div> from init : error # 1</div><div> nc already filled: wrong q grid or wrong nr</div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div>
<div><br></div><div> stopping ...</div><div>2</div></div><div><br></div><div><br></div><div>what is the problem ? is there i have to increse kpoint or decrese qpoint grid</div><div><br></div><div><br></div><div><br></div>
<div>thanks in advance</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div>b sahoo</div><div>reserch scolar mumbai</div><div><br></div>