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Introduced MR-CEPA. Not working yet

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This commit is contained in:
Anthony Scemama 2016-01-28 14:50:24 +01:00
parent 9d3900c7ee
commit ccc061fbeb
4 changed files with 383 additions and 0 deletions
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22
plugins/MRCC_Utils/H_apply.irp.f
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@ -24,5 +24,27 @@ s.data["size_max"] = "3072"
print s
s = H_apply("mrcepa")
s.data["parameters"] = ", delta_ij_, delta_ii_,Ndet_ref, Ndet_non_ref"
s.data["declarations"] += """
integer, intent(in) :: Ndet_ref,Ndet_non_ref
double precision, intent(in) :: delta_ij_(Ndet_ref,Ndet_non_ref,*)
double precision, intent(in) :: delta_ii_(Ndet_ref,*)
"""
s.data["keys_work"] = "call mrcepa_dress(delta_ij_,delta_ii_,Ndet_ref,Ndet_non_ref,i_generator,key_idx,keys_out,N_int,iproc,key_mask)"
s.data["params_post"] += ", delta_ij_, delta_ii_, Ndet_ref, Ndet_non_ref"
s.data["params_main"] += "delta_ij_, delta_ii_, Ndet_ref, Ndet_non_ref"
s.data["decls_main"] += """
integer, intent(in) :: Ndet_ref,Ndet_non_ref
double precision, intent(in) :: delta_ij_(Ndet_ref,Ndet_non_ref,*)
double precision, intent(in) :: delta_ii_(Ndet_ref,*)
"""
s.data["finalization"] = ""
s.data["copy_buffer"] = ""
s.data["generate_psi_guess"] = ""
s.data["size_max"] = "3072"
# print s
END_SHELL

4
plugins/MRCC_Utils/mrcc_utils.irp.f
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@ -26,7 +26,11 @@
! TODO --- Test perturbatif ------
do k=1,N_states
lambda_pert(k,i) = 1.d0 / (psi_ref_energy_diagonalized(k)-hii)
! TODO : i_h_psi peut sortir de la boucle?
call i_h_psi(psi_non_ref(1,1,i), psi_ref, psi_ref_coef, N_int, N_det_ref,size(psi_ref_coef,1), n_states, ihpsi_current)
if (ihpsi_current(k) == 0.d0) then
ihpsi_current(k) = 1.d-32
endif
tmp = psi_non_ref_coef(i,k)/ihpsi_current(k)
i_pert = 0
! Perturbation only if 1st order < 0.5 x second order

260
plugins/MRCC_Utils/mrcepa_dress.irp.f Normal file
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@ -0,0 +1,260 @@
use omp_lib
use bitmasks
subroutine mrcepa_dress(delta_ij_, delta_ii_, Ndet_ref, Ndet_non_ref,i_generator,n_selected,det_buffer,Nint,iproc,key_mask)
use bitmasks
implicit none
integer, intent(in) :: i_generator,n_selected, Nint, iproc
integer, intent(in) :: Ndet_ref, Ndet_non_ref
double precision, intent(inout) :: delta_ij_(Ndet_ref,Ndet_non_ref,*)
double precision, intent(inout) :: delta_ii_(Ndet_ref,*)
integer(bit_kind), intent(in) :: det_buffer(Nint,2,n_selected)
integer :: i,j,k,l
integer :: degree_alpha(psi_det_size)
integer :: idx_alpha(0:psi_det_size)
logical :: good, fullMatch
integer(bit_kind) :: tq(Nint,2,n_selected)
integer :: N_tq, c_ref ,degree
double precision :: hIk, hla, hIl, dIk(N_states), dka(N_states), dIa(N_states)
double precision, allocatable :: dIa_hia(:,:)
double precision :: haj, phase, phase2
double precision :: f(N_states), ci_inv(N_states)
integer :: exc(0:2,2,2)
integer :: h1,h2,p1,p2,s1,s2
integer(bit_kind) :: tmp_det(Nint,2)
integer(bit_kind) :: tmp_det_0(Nint,2)
integer :: iint, ipos
integer :: i_state, i_sd, k_sd, l_sd, i_I, i_alpha
integer(bit_kind),allocatable :: miniList(:,:,:)
integer(bit_kind),intent(in) :: key_mask(Nint, 2)
integer,allocatable :: idx_miniList(:)
integer :: N_miniList, ni, leng
integer(bit_kind) :: isum
double precision :: hia
integer, allocatable :: index_sorted(:)
leng = max(N_det_generators, N_det_non_ref)
allocate(miniList(Nint, 2, leng), idx_miniList(leng), index_sorted(N_det))
!create_minilist_find_previous(key_mask, fullList, miniList, N_fullList, N_miniList, fullMatch, Nint)
call create_minilist_find_previous(key_mask, psi_det_generators, miniList, i_generator-1, N_miniList, fullMatch, Nint)
if(fullMatch) then
return
end if
call find_triples_and_quadruples(i_generator,n_selected,det_buffer,Nint,tq,N_tq,miniList,N_minilist)
allocate (dIa_hia(N_states,Ndet_non_ref))
! |I>
! |alpha>
if(N_tq > 0) then
call create_minilist(key_mask, psi_non_ref, miniList, idx_miniList, N_det_non_ref, N_minilist, Nint)
end if
do i_alpha=1,N_tq
! call get_excitation_degree_vector(psi_non_ref,tq(1,1,i_alpha),degree_alpha,Nint,N_det_non_ref,idx_alpha)
call get_excitation_degree_vector(miniList,tq(1,1,i_alpha),degree_alpha,Nint,N_minilist,idx_alpha)
integer, external :: get_index_in_psi_det_sorted_bit
index_sorted = huge(-1)
do j=1,idx_alpha(0)
idx_alpha(j) = idx_miniList(idx_alpha(j))
index_sorted( get_index_in_psi_det_sorted_bit( psi_non_ref(1,1,idx_alpha(j)), N_int ) ) = idx_alpha(j)
end do
! |I>
do i_I=1,N_det_ref
! Find triples and quadruple grand parents
call get_excitation_degree(tq(1,1,i_alpha),psi_ref(1,1,i_I),degree,Nint)
if (degree > 4) then
cycle
endif
do i_state=1,N_states
dIa(i_state) = 0.d0
enddo
!TODO: MR
do i_sd=1,idx_alpha(0)
call get_excitation_degree(psi_non_ref(1,1,idx_alpha(i_sd)),tq(1,1,i_alpha),degree,Nint)
if (degree > 2) then
cycle
endif
call get_excitation(psi_non_ref(1,1,idx_alpha(i_sd)),tq(1,1,i_alpha),exc,degree,phase,Nint)
call decode_exc(exc,degree,h1,p1,h2,p2,s1,s2)
tmp_det_0 = 0_bit_kind
! Hole (see list_to_bitstring)
iint = ishft(h1-1,-bit_kind_shift) + 1
ipos = h1-ishft((iint-1),bit_kind_shift)-1
tmp_det_0(iint,s1) = ibset(tmp_det_0(iint,s1),ipos)
! Particle
iint = ishft(p1-1,-bit_kind_shift) + 1
ipos = p1-ishft((iint-1),bit_kind_shift)-1
tmp_det_0(iint,s1) = ibset(tmp_det_0(iint,s1),ipos)
if (degree == 2) then
! Hole (see list_to_bitstring)
iint = ishft(h2-1,-bit_kind_shift) + 1
ipos = h2-ishft((iint-1),bit_kind_shift)-1
tmp_det_0(iint,s2) = ibset(tmp_det_0(iint,s2),ipos)
! Particle
iint = ishft(p2-1,-bit_kind_shift) + 1
ipos = p2-ishft((iint-1),bit_kind_shift)-1
tmp_det_0(iint,s2) = ibset(tmp_det_0(iint,s2),ipos)
endif
call i_h_j(tq(1,1,i_alpha),psi_non_ref(1,1,idx_alpha(i_sd)),Nint,hia)
! <I| <> |alpha>
do k_sd=1,idx_alpha(0)
call get_excitation_degree(psi_ref(1,1,i_I),psi_non_ref(1,1,idx_alpha(k_sd)),degree,Nint)
if (degree > 2) then
cycle
endif
call get_excitation(psi_ref(1,1,i_I),psi_non_ref(1,1,idx_alpha(k_sd)),exc,degree,phase,Nint)
call decode_exc(exc,degree,h1,p1,h2,p2,s1,s2)
tmp_det = 0_bit_kind
! Hole (see list_to_bitstring)
iint = ishft(h1-1,-bit_kind_shift) + 1
ipos = h1-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s1) = ibset(tmp_det(iint,s1),ipos)
! Particle
iint = ishft(p1-1,-bit_kind_shift) + 1
ipos = p1-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s1) = ibset(tmp_det(iint,s1),ipos)
if (degree == 2) then
! Hole (see list_to_bitstring)
iint = ishft(h2-1,-bit_kind_shift) + 1
ipos = h2-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s2) = ibset(tmp_det(iint,s2),ipos)
! Particle
iint = ishft(p2-1,-bit_kind_shift) + 1
ipos = p2-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s2) = ibset(tmp_det(iint,s2),ipos)
endif
isum = 0_bit_kind
do iint = 1,N_int
isum = isum + iand(tmp_det(iint,1), tmp_det_0(iint,1)) &
+ iand(tmp_det(iint,2), tmp_det_0(iint,2))
enddo
if (isum /= 0_bit_kind) then
cycle
endif
! <I| /k\ |alpha>
! <I|H|k>
call i_h_j(psi_ref(1,1,i_I),psi_non_ref(1,1,idx_alpha(k_sd)),Nint,hIk)
do i_state=1,N_states
dIk(i_state) = hIk * lambda_mrcc(i_state,idx_alpha(k_sd))
enddo
! |l> = Exc(k -> alpha) |I>
call get_excitation(psi_non_ref(1,1,idx_alpha(k_sd)),tq(1,1,i_alpha),exc,degree,phase,Nint)
call decode_exc(exc,degree,h1,p1,h2,p2,s1,s2)
do k=1,N_int
tmp_det(k,1) = psi_ref(k,1,i_I)
tmp_det(k,2) = psi_ref(k,2,i_I)
enddo
! Hole (see list_to_bitstring)
iint = ishft(h1-1,-bit_kind_shift) + 1
ipos = h1-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s1) = ibclr(tmp_det(iint,s1),ipos)
! Particle
iint = ishft(p1-1,-bit_kind_shift) + 1
ipos = p1-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s1) = ibset(tmp_det(iint,s1),ipos)
if (degree == 2) then
! Hole (see list_to_bitstring)
iint = ishft(h2-1,-bit_kind_shift) + 1
ipos = h2-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s2) = ibclr(tmp_det(iint,s2),ipos)
! Particle
iint = ishft(p2-1,-bit_kind_shift) + 1
ipos = p2-ishft((iint-1),bit_kind_shift)-1
tmp_det(iint,s2) = ibset(tmp_det(iint,s2),ipos)
endif
! <I| \l/ |alpha>
do i_state=1,N_states
dka(i_state) = 0.d0
enddo
! l_sd = index_sorted( get_index_in_psi_det_sorted_bit( tmp_det, N_int ) )
! call get_excitation(psi_ref(1,1,i_I),psi_non_ref(1,1,l_sd),exc,degree,phase2,Nint)
! call i_h_j(psi_ref(1,1,i_I),psi_non_ref(1,1,l_sd),Nint,hIl)
! do i_state=1,N_states
! dka(i_state) = hIl * lambda_mrcc(i_state,l_sd) * phase * phase2
! enddo
do l_sd=1,idx_alpha(0)
call get_excitation_degree(tmp_det,psi_non_ref(1,1,idx_alpha(l_sd)),degree,Nint)
if (degree == 0) then
call get_excitation(psi_ref(1,1,i_I),psi_non_ref(1,1,idx_alpha(l_sd)),exc,degree,phase2,Nint)
call i_h_j(psi_ref(1,1,i_I),psi_non_ref(1,1,idx_alpha(l_sd)),Nint,hIl)
do i_state=1,N_states
dka(i_state) = hIl * lambda_mrcc(i_state,idx_alpha(l_sd)) * phase * phase2
enddo
exit
endif
enddo
do i_state=1,N_states
dIa(i_state) = dIa(i_state) + dIk(i_state) * dka(i_state)
enddo
enddo
do i_state=1,N_states
ci_inv(i_state) = 1.d0/psi_ref_coef(i_I,i_state)
enddo
k_sd = idx_alpha(i_sd)
do i_state=1,N_states
dIa_hia(i_state,k_sd) = dIa(i_state) * hia
enddo
call omp_set_lock( psi_ref_lock(i_I) )
do i_state=1,N_states
delta_ij_(i_I,k_sd,i_state) += dIa_hia(i_state,k_sd)
if(dabs(psi_ref_coef(i_I,i_state)).ge.5.d-5)then
delta_ii_(i_I,i_state) -= dIa_hia(i_state,k_sd) * ci_inv(i_state) * psi_non_ref_coef(k_sd,i_state)
else
delta_ii_(i_I,i_state) = 0.d0
endif
enddo
call omp_unset_lock( psi_ref_lock(i_I) )
enddo
enddo
enddo
deallocate (dIa_hia,index_sorted)
deallocate(miniList, idx_miniList)
end

97
plugins/MRCC_Utils/mrcepa_general.irp.f Normal file
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@ -0,0 +1,97 @@
subroutine run_mrcepa
implicit none
call set_generators_bitmasks_as_holes_and_particles
call mrcepa_iterations
end
subroutine mrcepa_iterations
implicit none
integer :: i,j
double precision :: E_new, E_old, delta_e
integer :: iteration,i_oscillations
double precision :: E_past(4)
E_new = 0.d0
delta_E = 1.d0
iteration = 0
j = 1
i_oscillations = 0
do while (delta_E > 1.d-7)
iteration += 1
print *, '==========================='
print *, 'MRCEPA Iteration', iteration
print *, '==========================='
print *, ''
E_old = sum(ci_energy_dressed)
call write_double(6,ci_energy_dressed(1),"MRCEPA energy")
call diagonalize_ci_dressed
E_new = sum(ci_energy_dressed)
delta_E = dabs(E_new - E_old)
E_past(j) = E_new
j +=1
if(j>4)then
j=1
endif
if(iteration > 4) then
if(delta_E > 1.d-10)then
if(dabs(E_past(1) - E_past(3)) .le. delta_E .and. dabs(E_past(2) - E_past(4)).le. delta_E)then
print*,'OSCILLATIONS !!!'
oscillations = .True.
i_oscillations +=1
lambda_mrcc_tmp = lambda_mrcc
endif
endif
endif
call save_wavefunction
! if (i_oscillations > 5) then
! exit
! endif
if (iteration > 200) then
exit
endif
print*,'------------'
print*,'VECTOR'
do i = 1, N_det_ref
print*,''
print*,'psi_ref_coef(i,1) = ',psi_ref_coef(i,1)
print*,'delta_ii(i,1) = ',delta_ii(i,1)
enddo
print*,'------------'
enddo
call write_double(6,ci_energy_dressed(1),"Final MRCEPA energy")
call ezfio_set_mrcc_cassd_energy(ci_energy_dressed(1))
call save_wavefunction
end
subroutine set_generators_bitmasks_as_holes_and_particles
implicit none
integer :: i,k
do k = 1, N_generators_bitmask
do i = 1, N_int
! Pure single part
generators_bitmask(i,1,1,k) = holes_operators(i,1) ! holes for pure single exc alpha
generators_bitmask(i,1,2,k) = particles_operators(i,1) ! particles for pure single exc alpha
generators_bitmask(i,2,1,k) = holes_operators(i,2) ! holes for pure single exc beta
generators_bitmask(i,2,2,k) = particles_operators(i,2) ! particles for pure single exc beta
! Double excitation
generators_bitmask(i,1,3,k) = holes_operators(i,1) ! holes for first single exc alpha
generators_bitmask(i,1,4,k) = particles_operators(i,1) ! particles for first single exc alpha
generators_bitmask(i,2,3,k) = holes_operators(i,2) ! holes for first single exc beta
generators_bitmask(i,2,4,k) = particles_operators(i,2) ! particles for first single exc beta
generators_bitmask(i,1,5,k) = holes_operators(i,1) ! holes for second single exc alpha
generators_bitmask(i,1,6,k) = particles_operators(i,1) ! particles for second single exc alpha
generators_bitmask(i,2,5,k) = holes_operators(i,2) ! holes for second single exc beta
generators_bitmask(i,2,6,k) = particles_operators(i,2) ! particles for second single exc beta
enddo
enddo
touch generators_bitmask
end