<div dir="ltr"><div><div>Thank you for your help. I will set cell_parameter and run again.<br></div>I have a question, if the total force can not go to zero ( or not smaller than threshold values that I set at namelist &control). So what can I change this one to have the best result in structure optimization?<br></div>Best.<br></div><div class="gmail_extra"><br><div class="gmail_quote">2016-10-26 19:44 GMT+07:00 stefano de gironcoli <span dir="ltr"><<a href="mailto:degironc@sissa.it" target="_blank">degironc@sissa.it</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div class="m_-4753241072298604284moz-cite-prefix">I think this happens because the cell
shrinks very much and the effective cutoff grows above beyond a
certain fraction (set with the cell_factor) of the input cutoff.<br>
restarting after setting a larger cell_factor should work. <br>
restarting from scratch from the latest volume should also work.<span class="HOEnZb"><font color="#888888"><br>
<br>
stefano <br></font></span><div><div class="h5">
<br>
<br>
On 26/10/2016 10:38, Oanh Nguyen wrote:<br>
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<div>Dear users!<br>
</div>
I am optimising "vc_relax" for PdxTaSe2. I have a problem when
I am running.<br>
Not enough space allocated for radial FFT: try restarting with
a larger cell_factor.<br>
</div>
<div>Running with "relax" is ok<br>
</div>
<div><br>
</div>
<div>Here is my inputfile.<br>
</div>
<div>I already use lattice constant from experimental result.<br>
<br>
</div>
<div>How to the way to fix it?<br>
</div>
</div>
<br>
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