<div dir="ltr"><div><div style="font-size:12.8px">I've been running an SCF
calculation for a free Ni system on High performance cluster. The job
runs fine with processors 7 or less but it always leads to segmentation
fault if the no of processors exceeds 7. The job takes 4-5 days for the run. <br></div><div style="font-size:12.8px">I think the problem is in the definition of cell parameters in the input file. Its a free lattice.<br></div><div style="font-size:12.8px">I have taken the cell parameters as :-Â Â <br>22.6Â Â 0Â Â Â 0Â <br>0Â Â 11.3Â Â 0Â <br>0Â Â 0Â Â Â Â Â Â Â 1<br></div><div style="font-size:12.8px">and the extreme positions of the atoms in the model are :-<br>0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â Â Â 0<br>21.15282Â Â Â Â 0 Â Â Â Â Â Â Â Â Â 0<br></div><div style="font-size:12.8px">0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10.020Â Â Â 0<br></div>Its a single layer model. So along Z direction, its one atom thick layer. Every dimension is in Angsrtom.<br></div>What should be the cell parameters for the model ?<br><div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Thank You for hearing my problem<br><span class=""><font color="#888888"><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-size:12.8px"><font color="#000000">Vishal Gupta</font></span></div><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-size:12.8px"><font color="#000000">B.Tech. 3rd year Mechanical</font></span></div><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-size:12.8px"><font color="#000000">Indian Institute of Technology Ropar</font></span></div><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-size:12.8px"><font color="#000000">Rupnagar (140001), Punjab, India.</font></span></div></font></span><br></div></div></div>