<div dir="ltr"><div><div>Dear Narendranath,<br>Your calculation has reached convergence if you read the message "EXX self-consistency reached".<br>You can learn some details about the scf procedure with hybrid functionals in PW/examples/EXX_example.<br></div>PBE0 and hybrid functional calculations are in general very expensive. I would suggest you run an example to see what to expect. <br>You might also try to perform a calculation on your system with minimal computational parameters (very small cut-off, few/one k-points) just to see that your run can indeed terminate smoothly. Then I would look for a set of parameters which are a good compromise between computational time and the accuracy you need.<br></div><div>You might also try to modify the parameter ecutfock to gain some speed.<a name="idm6425904"></a><a name="ecutfock"></a></div><div>For sure a hybrid functional calculation on a CNT+Fullerene system might be rather challenging.<br></div><div>Best,<br></div><div>Dario <br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 3, 2016 at 11:16 AM, Narendranath Ghosh <span dir="ltr"><<a href="mailto:ghosh.naren13@gmail.com" target="_blank">ghosh.naren13@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Dear all</div><div><br></div> After optimizing a system "CNT+Fullerene" with "PBE" I am trying to calculate "scf" calculation with "PBE0" hybrid functional using NC Pseudopotential.<div><br></div><div>In output file I found "<b>convergence has been achieved in 15 iterations" </b>But the job was not finished even after more than one week. I could not find any mistake in my input. </div><div><br></div><div><br></div><div>Please suggest any idea.</div><div><br></div><div><br></div><div><br><h3 style="font-size:18px;font-weight:normal;margin:0px;padding-top:0px;padding-right:0px;padding-left:0px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap"><br></h3> </div></div>
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