<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div>Dear Paolo, </div><div>Thank you for your reply. </div><div>What I did is just split a 60 q-points electron-phonon coupling task into 6 tasks. The first three can run very well, but the last three can not. I do not know what happened. The only difference in the input file is the start_q and last_q. I am testing on a different start_q to see if it is because of a particular q point. </div><div>Thank you very much. </div><div>Xiaoyu</div><br><br><div style="position:relative;zoom:1"></div><div id="divNeteaseMailCard"></div><br><pre><br>At 2017-02-03 16:35:24, "Paolo Giannozzi" <p.giannozzi@gmail.com> wrote:
>On Fri, Feb 3, 2017 at 1:55 AM, Xiaoyu Liu <xiaoyuliu@126.com> wrote:
>
>> and the only error information I got is :
>
>> forrtl: severe (71): integer divide by zero
>> Image PC Routine Line Source
>[...]
>> ph.x 00000000004304B2 elphsum_ 709 elphon.f90
>
>Integer divide by zero at line 709 of elphon.f90. It's a lot of information.
>
>Paolo
>--
>Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
>Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
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</pre></div>