<div dir="ltr"><div><div>Hi<br></div>I am doing electron-phonon calculation for picene
monoclinic crystal (72 atoms). My calculation does not move forward
after calculation of dynamical matrices for first q_point (0.0 0.0 0.0).
It gets stuck at calculation of electron-phonon interaction.<br><br>Apparently
after calculation of dynamical matrices it should not take very long to
calculate el-ph interaction but in my case it is not going even after
5*time_for_dynamical_matrices for one q-point. In my output my calculation does not move from this point. <i><br><span style="color:rgb(102,102,102)"> freq (174 -174) = 2208.9 [cm-1] --> B_g R <br> freq (175 -175) = 2210.2 [cm-1] --> A_g R <br> freq (176 -176) = 2221.8 [cm-1] --> B_g R <br> freq (177 -177) = 2226.9 [cm-1] --> A_g R <br> freq (178 -178) = 2246.6 [cm-1] --> B_u I <br> freq (179 -179) = 2253.9 [cm-1] --> A_u I <br> freq (180 -180) = 2259.6 [cm-1] --> A_g R <br> freq (181 -181) = 2264.8 [cm-1] --> A_u I <br> freq (182 -182) = 2271.1 [cm-1] --> B_u I <br> freq (183 -183) = 2299.6 [cm-1] --> B_g R <br> freq (184 -184) = 2317.7 [cm-1] --> A_u I <br> freq (185 -185) = 2339.6 [cm-1] --> A_g R <br> freq (186 -186) = 2346.2 [cm-1] --> B_g R <br> freq (187 -187) = 2359.5 [cm-1] --> B_u I <br> freq (188 -188) = 2378.8 [cm-1] --> A_u I <br> freq (189 -189) = 2380.6 [cm-1] --> A_g R <br> freq (190 -190) = 2496.3 [cm-1] --> B_u I <br> freq (191 -191) = 2505.6 [cm-1] --> A_g R <br> freq (192 -192) = 2696.7 [cm-1] --> A_g R <br> electron-phonon interaction ...<br></span></i><br clear="all">Can you please elaborate some reason behind it? I am using 4x4x4 K-points and 2x2x2 q_points.<br><br></div>Regards<br><div><i><br></i><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><b><span style="color:rgb(68,68,68)"><i>Muhammad Nadeem<br></i></span></b></div><div><b><span style="color:rgb(68,68,68)"><i>Graduate Student<br></i></span></b></div><b><span style="color:rgb(68,68,68)"><i>Department of Physics <br>Sungkyunkwan University, Suwon</i></span></b><br></div></div>
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