[QE-users] FFT dominanted benchmark

[Pietro Delugas]

Dear Zeshi Liu

The program test.f90  inside the FFTXLIB makes a test of the permormance 
of the FFT alone.

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.

Pietro


On 19/06/19 05:11, 刘泽世 wrote:
>
> Dear Quantum Espresso's community,
>
>
>   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?
>
>
> Thanks in advance.
>
>
> Zeshi Liu
>
> Institute of Computing Technology
>
> Chinese Academy of Sciences
>
>
>
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