[Pw_forum] slow speed of D3 code

[david yang]

Hi all,
              I am calculating anharmonic IFCS for Si on a 3x3x3 supercell
on 32 processor.

But the calculation seems to be very slow ,it takes 250 hours
for calculating IFCs  at a particular point(e.g on X,L,or
any arbitrary point).

If there is any trick by which I can speed up my calculation .


thanking you



with regards
David
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