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<p><font size="-1">Dear Zeshi Liu <br>
</font></p>
<p><font size="-1">The program test.f90 inside the FFTXLIB makes a
test of the permormance of the FFT alone. <br>
</font></p>
<p><font size="-1">If you want use pw you could just take one of the
inputs from the test-suite/pw_atom directory, just increase the
lattice constant and the cut-off to increase the weight of the
FFT. <br>
</font></p>
<p><font size="-1">Pietro<br>
</font></p>
<p><font size="-1"></font><br>
</p>
<div class="moz-cite-prefix">On 19/06/19 05:11, 刘泽世 wrote:<br>
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<blockquote type="cite"
cite="mid:915d9c7.ebcc.16b6db78624.Coremail.liuzeshi@ict.ac.cn">
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<p> Dear Quantum Espresso's community, </p>
<p> <br>
</p>
<p> I'm looking for a QE benchmark (or input problem) where
FFT dominantes the execution time. can you give me a hint to
find one? </p>
<p> <br>
</p>
<p> Thanks in advance. </p>
<p> <br>
</p>
<p> Zeshi Liu </p>
<p> Institute of Computing Technology </p>
<p> Chinese Academy of Sciences </p>
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<br>
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