<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 21, 2015 at 3:52 PM, Mostafa Youssef <span dir="ltr"><<a href="mailto:myoussef@mit.edu" target="_blank">myoussef@mit.edu</a>></span> wrote:<br><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt">
I'm a bit surprised because the time report of the same system without electric field and with a denser Kpoint grid (2x2x2) looks like:<br>
<br>
init_run : 38.32s CPU 39.48s WALL ( 1 calls)<br>
electrons : 9042.53s CPU 9168.56s WALL ( 8 calls)<br>
update_pot : 4.99s CPU 6.13s WALL ( 7 calls)<br>
forces : 873.59s CPU 949.08s WALL ( 8 calls)<br>
stress : 3211.03s CPU 3260.70s WALL ( 8 calls)<br></div></div></blockquote><div><br></div><div>with Hubbard U? this looks to me a more reasonable performance. I know nothing about electric fields, other that it is hard to converge more often than not. If you send me the output files of the two cases you mentioned, I'll try to figure out if there is something wrong<br><br></div><div>Paolo<br></div><div> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt">
Here the forces is just a tiny fraction of the electrons time. <br>
<br>
<br>
Regards,<br>
Mostafa<br>
MIT<br>
<br>
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