<div dir="ltr"><div>There is a link on the QE web site to benchmarks, but most of them use ultrasoft PPs or PAW. If you want a FFT-dominated benchmark, you should use norm-conserving PP's and a high cutoff. A suitable example could be CPV/examples/example04, containing 32 to 256 water molecules (for cp.x, but it can be easily adapted to pw.x)</div><div><br></div><div>Paolo<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 19, 2019 at 5:11 AM 刘泽世 <<a href="mailto:liuzeshi@ict.ac.cn">liuzeshi@ict.ac.cn</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>
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Dear Quantum Espresso's community,
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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?
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Thanks in advance.
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Zeshi Liu
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Institute of Computing Technology
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Chinese Academy of Sciences
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