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Parallelized make_s2_eigenfunction

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This commit is contained in:
Anthony Scemama 2017-02-09 20:32:00 +01:00
parent 3b935080b4
commit 67f8fc8e3e
1 changed files with 16 additions and 25 deletions
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41
src/Determinants/occ_pattern.irp.f
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@ -36,7 +36,7 @@ subroutine occ_pattern_to_dets_size(o,sze,n_alpha,Nint)
amax -= popcnt( o(k,2) )
enddo
sze = int( min(binom_func(bmax, amax), 1.d8) )
sze = sze*sze
sze = sze*sze + 10
end
@ -246,14 +246,21 @@ subroutine make_s2_eigenfunction
integer :: i,j,k
integer :: smax, s
integer(bit_kind), allocatable :: d(:,:,:), det_buffer(:,:,:)
integer :: N_det_new
integer :: N_det_new, ithread, omp_get_thread_num
integer, parameter :: bufsze = 1000
logical, external :: is_in_wavefunction
allocate (d(N_int,2,1), det_buffer(N_int,2,bufsze) )
smax = 1
N_det_new = 0
print *, 'Finding determinants for S^2...'
!$OMP PARALLEL DEFAULT(NONE) &
!$OMP SHARED(N_occ_pattern, psi_occ_pattern, elec_alpha_num,N_int) &
!$OMP PRIVATE(s,ithread, d, det_buffer, smax, N_det_new,i,j,k)
N_det_new = 0
call occ_pattern_to_dets_size(psi_occ_pattern(1,1,1),s,elec_alpha_num,N_int)
allocate (d(N_int,2,s), det_buffer(N_int,2,bufsze) )
smax = s
ithread = omp_get_thread_num()
!$OMP DO
do i=1,N_occ_pattern
call occ_pattern_to_dets_size(psi_occ_pattern(1,1,i),s,elec_alpha_num,N_int)
s += 1
@ -270,40 +277,24 @@ subroutine make_s2_eigenfunction
det_buffer(k,1,N_det_new) = d(k,1,j)
det_buffer(k,2,N_det_new) = d(k,2,j)
enddo
! integer :: ne(2)
! ne(:) = 0
! do k=1,N_int
! ne(1) += popcnt(d(k,1,j))
! ne(2) += popcnt(d(k,2,j))
! enddo
! if (ne(1) /= elec_alpha_num) then
! call debug_det(d(1,1,j),N_int)
! stop "ALPHA"
! endif
! if (ne(2) /= elec_beta_num) then
! call debug_det(d(1,1,j),N_int)
! stop "BETA"
! endif
if (N_det_new == bufsze) then
call fill_H_apply_buffer_no_selection(bufsze,det_buffer,N_int,0)
call fill_H_apply_buffer_no_selection(bufsze,det_buffer,N_int,ithread)
N_det_new = 0
endif
endif
enddo
enddo
!$OMP END DO NOWAIT
if (N_det_new > 0) then
call fill_H_apply_buffer_no_selection(N_det_new,det_buffer,N_int,0)
! call fill_H_apply_buffer_no_selection_first_order_coef(N_det_new,det_buffer,N_int,0)
call fill_H_apply_buffer_no_selection(N_det_new,det_buffer,N_int,ithread)
endif
deallocate(d,det_buffer)
!$OMP END PARALLEL
call copy_H_apply_buffer_to_wf
SOFT_TOUCH N_det psi_coef psi_det
print *, 'Added determinants for S^2'
! logical :: found
! call remove_duplicates_in_psi_det(found)
end