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Accelerated 2rdm

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This commit is contained in:
Anthony Scemama 2025-02-26 15:14:51 +01:00
parent 62c13860ba
commit 2655f99622
1 changed files with 103 additions and 53 deletions
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110
src/two_rdm_routines/davidson_like_2rdm.irp.f
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@ -13,7 +13,7 @@ subroutine orb_range_2_rdm_openmp(big_array,dim1,norb,list_orb,ispin,u_0,N_st,sz
END_DOC
integer, intent(in) :: N_st,sze
integer, intent(in) :: dim1,norb,list_orb(norb),ispin
double precision, intent(inout) :: big_array(dim1,dim1,dim1,dim1)
double precision, intent(inout) :: big_array(dim1,dim1,dim1,dim1,N_st)
double precision, intent(in) :: u_0(sze,N_st)
integer :: k
@ -50,7 +50,7 @@ subroutine orb_range_2_rdm_openmp_work(big_array,dim1,norb,list_orb,ispin,u_t,N_
END_DOC
integer, intent(in) :: N_st,sze,istart,iend,ishift,istep
integer, intent(in) :: dim1,norb,list_orb(norb),ispin
double precision, intent(inout) :: big_array(dim1,dim1,dim1,dim1)
double precision, intent(inout) :: big_array(dim1,dim1,dim1,dim1,N_st)
double precision, intent(in) :: u_t(N_st,N_det)
integer :: k
@ -91,7 +91,7 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
integer, intent(in) :: N_st,sze,istart,iend,ishift,istep
double precision, intent(in) :: u_t(N_st,N_det)
integer, intent(in) :: dim1,norb,list_orb(norb),ispin
double precision, intent(inout) :: big_array(dim1,dim1,dim1,dim1)
double precision, intent(inout) :: big_array(dim1,dim1,dim1,dim1,N_st)
integer(omp_lock_kind) :: lock_2rdm
integer :: i,j,k,l
@ -155,6 +155,8 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
! Prepare the array of all alpha single excitations
! -------------------------------------------------
double precision, allocatable :: big_array_local(:,:,:,:,:)
PROVIDE N_int nthreads_davidson elec_alpha_num
!$OMP PARALLEL DEFAULT(NONE) NUM_THREADS(nthreads_davidson) &
!$OMP SHARED(psi_bilinear_matrix_rows, N_det,lock_2rdm,&
@ -174,7 +176,7 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
!$OMP buffer, doubles, n_doubles, &
!$OMP tmp_det2, idx, l, kcol_prev, &
!$OMP singles_a, n_singles_a, singles_b, &
!$OMP n_singles_b, nkeys, keys, values)
!$OMP n_singles_b, nkeys, keys, values, big_array_local)
! Alpha/Beta double excitations
! =============================
@ -185,6 +187,8 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
singles_b(maxab), &
doubles(maxab), &
idx(maxab))
allocate( big_array_local(N_states,dim1, dim1, dim1, dim1) )
big_array_local(:,:,:,:,:) = 0.d0
kcol_prev=-1
@ -256,30 +260,32 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
do l= 1, N_states
c_1(l) = u_t(l,l_a) * u_t(l,k_a)
enddo
if(alpha_beta)then
! only ONE contribution
if (nkeys+1 .ge. sze_buff) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
nkeys = 0
endif
else if (spin_trace)then
! TWO contributions
! if(alpha_beta)then
! ! only ONE contribution
! if (nkeys+1 .ge. sze_buff) then
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! nkeys = 0
! endif
! else if (spin_trace)then
! ! TWO contributions
if (nkeys+2 .ge. sze_buff) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
endif
! endif
call orb_range_off_diag_double_to_all_states_ab_dm_buffer(tmp_det,tmp_det2,c_1,N_st,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
enddo
endif
enddo
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! nkeys = 0
enddo
!$OMP END DO
!$OMP END DO NOWAIT
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
!$OMP DO SCHEDULE(dynamic)
do k_a=istart+ishift,iend,istep
@ -334,6 +340,7 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
! ----------------------------------
tmp_det2(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
if(alpha_beta.or.spin_trace.or.alpha_alpha)then
do i=1,n_singles_a
l_a = singles_a(i)
ASSERT (l_a <= N_det)
@ -345,22 +352,24 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
do l= 1, N_states
c_1(l) = u_t(l,l_a) * u_t(l,k_a)
enddo
if(alpha_beta.or.spin_trace.or.alpha_alpha)then
! increment the alpha/beta part for single excitations
if (nkeys+ 2 * elec_alpha_num .ge. sze_buff) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_off_diag_single_to_all_states_ab_dm_buffer(tmp_det, tmp_det2,c_1,N_st,orb_bitmask,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
! increment the alpha/alpha part for single excitations
if (nkeys+4 * elec_alpha_num .ge. sze_buff ) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_off_diag_single_to_all_states_aa_dm_buffer(tmp_det,tmp_det2,c_1,N_st,orb_bitmask,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
endif
enddo
endif
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! nkeys = 0
@ -380,7 +389,8 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
c_1(l) = u_t(l,l_a) * u_t(l,k_a)
enddo
if (nkeys+4 .ge. sze_buff) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_off_diag_double_to_all_states_aa_dm_buffer(tmp_det(1,1),psi_det_alpha_unique(1, lrow),c_1,N_st,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
@ -435,6 +445,7 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
! ----------------------------------
tmp_det2(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
if(alpha_beta.or.spin_trace.or.beta_beta)then
do i=1,n_singles_b
l_b = singles_b(i)
ASSERT (l_b <= N_det)
@ -447,21 +458,24 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
do l= 1, N_states
c_1(l) = u_t(l,l_a) * u_t(l,k_a)
enddo
if(alpha_beta.or.spin_trace.or.beta_beta)then
! increment the alpha/beta part for single excitations
if (nkeys+2 * elec_alpha_num .ge. sze_buff ) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_off_diag_single_to_all_states_ab_dm_buffer(tmp_det, tmp_det2,c_1,N_st,orb_bitmask,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
! increment the beta /beta part for single excitations
if (nkeys+4 * elec_alpha_num .ge. sze_buff) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_off_diag_single_to_all_states_bb_dm_buffer(tmp_det, tmp_det2,c_1,N_st,orb_bitmask,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
endif
enddo
endif
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! nkeys = 0
@ -481,7 +495,8 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
c_1(l) = u_t(l,l_a) * u_t(l,k_a)
enddo
if (nkeys+4 .ge. sze_buff) then
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_off_diag_double_to_all_states_bb_dm_buffer(tmp_det(1,2),psi_det_beta_unique(1, lcol),c_1,N_st,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
@ -517,15 +532,27 @@ subroutine orb_range_2_rdm_openmp_work_$N_int(big_array,dim1,norb,list_orb,ispin
c_1(l) = u_t(l,k_a) * u_t(l,k_a)
enddo
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
if (nkeys+elec_alpha_num*elec_alpha_num .ge. sze_buff) then
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
endif
call orb_range_diag_to_all_states_2_rdm_dm_buffer(tmp_det,c_1,N_states,orb_bitmask,list_orb_reverse,ispin,sze_buff,nkeys,keys,values)
call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
! call update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,lock_2rdm)
call update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
nkeys = 0
end do
!$OMP END DO
!$OMP END DO NOWAIT
deallocate(buffer, singles_a, singles_b, doubles, idx, keys, values)
!$OMP CRITICAL
do i=1,N_states
big_array(:,:,:,:,i) = big_array(:,:,:,:,i) + big_array_local(i,:,:,:,:)
enddo
!$OMP END CRITICAL
deallocate(big_array_local)
!$OMP END PARALLEL
end
@ -593,3 +620,26 @@ subroutine update_keys_values_n_states(keys,values,nkeys,dim1,n_st,big_array,loc
end
subroutine update_keys_values_n_states_local(keys,values,nkeys,dim1,n_st,big_array_local)
use omp_lib
implicit none
integer, intent(in) :: n_st,nkeys,dim1
integer, intent(in) :: keys(4,nkeys)
double precision, intent(in) :: values(n_st,nkeys)
double precision, intent(inout) :: big_array_local(n_st,dim1,dim1,dim1,dim1)
integer :: istate
integer :: i,h1,h2,p1,p2
do i = 1, nkeys
do istate = 1, N_st
h1 = keys(1,i)
h2 = keys(2,i)
p1 = keys(3,i)
p2 = keys(4,i)
big_array_local(istate,h1,h2,p1,p2) = big_array_local(istate,h1,h2,p1,p2) + values(istate,i)
enddo
enddo
end