Search found 3 matches

by yow5110
Thu Jun 06, 2019 4:05 am
Forum: Many-body perturbation theory
Topic: chi_new() doubling memory needs but does nothing?
Replies: 0
Views: 7293

chi_new() doubling memory needs but does nothing?

Hi all, Anyone knows what chi_new() does? I'm working with version 8.8.3 It's defined in ./70_gw/m_screening.F90 and called once in ./95_drive/screening.F90 for variable "chihw", at the end of a q=0 screening calculation. It doesn't seem to actually calculate anything but it asks for memor...
by yow5110
Wed Mar 20, 2019 4:59 pm
Forum: Many-body perturbation theory
Topic: G1-G2 pairs outside the G-sphere in screening calculation [SOLVED]
Replies: 4
Views: 15516

Re: G1-G2 pairs outside the G-sphere in screening calculatio [SOLVED]

1 year too late maybe: Getting G1-G2 vectors outside the G-sphere for wfn is fine I think, but the question is whether the summation in the gwcomp method is converged (when summing over G vectors inside the G-sphere). I just made a post that might affect the results that you're getting. https://foru...
by yow5110
Wed Mar 20, 2019 4:55 pm
Forum: Many-body perturbation theory
Topic: Bug in m_gsphere.F90 affecting gwcomp behavior
Replies: 0
Views: 7354

Bug in m_gsphere.F90 affecting gwcomp behavior

I was performing convergence studies for 2D systems using the extrapolar method (gwcomp) and found that: playing with gwencomp at the Sigma level does increase convergence speed as promised but playing with gwencomp at the Epsilon level gave me results that neither converges nor makes physical sense...