2019-10-24 13:55:38 +02:00
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BEGIN_PROVIDER [ logical, pruned, (N_det) ]
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implicit none
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BEGIN_DOC
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! True if determinant is removed by pruning
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END_DOC
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pruned(:) = .False.
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2020-04-21 23:30:37 +02:00
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if (pruning <= 0.d0) then
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2019-10-24 13:55:38 +02:00
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return
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endif
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integer :: i,j,k,ndet_new,nsop_max
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double precision :: thr
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if (s2_eig) then
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nsop_max = max(1,int ( dble(N_occ_pattern) * (1.d0 - pruning) + 0.5d0 ))
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do i=1,N_det
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k = det_to_occ_pattern(i)
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pruned(i) = psi_occ_pattern_sorted_order_reverse(k) > nsop_max
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enddo
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else
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ndet_new = max(1,int( dble(N_det) * (1.d0 - pruning) + 0.5d0 ))
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thr = psi_average_norm_contrib_sorted(ndet_new)
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do i=1, N_det
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pruned(i) = psi_average_norm_contrib(i) < thr
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enddo
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endif
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END_PROVIDER
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