subroutine ppGRPA(dotest,TDA,doACFDT,nBas,nC,nO,nV,nR,ENuc,EHF,ERI,dipole_int,e)

! Perform ppGRPA calculation

  implicit none
  include 'parameters.h'

! Input variables

  logical,intent(in)            :: dotest

  logical,intent(in)            :: TDA
  logical,intent(in)            :: doACFDT
  integer,intent(in)            :: nBas
  integer,intent(in)            :: nC
  integer,intent(in)            :: nO
  integer,intent(in)            :: nV
  integer,intent(in)            :: nR
  double precision,intent(in)   :: ENuc
  double precision,intent(in)   :: EHF
  double precision,intent(in)   :: e(nBas)
  double precision,intent(in)   :: ERI(nBas,nBas,nBas,nBas)
  double precision,intent(in)   :: dipole_int(nBas,nBas,ncart)

! Local variables

  integer                       :: ispin
  integer                       :: nOO
  integer                       :: nVV
  double precision,allocatable  :: Bpp(:,:)
  double precision,allocatable  :: Cpp(:,:)
  double precision,allocatable  :: Dpp(:,:)
  double precision,allocatable  :: Om1(:)
  double precision,allocatable  :: X1(:,:)
  double precision,allocatable  :: Y1(:,:)
  double precision,allocatable  :: Om2(:)
  double precision,allocatable  :: X2(:,:)
  double precision,allocatable  :: Y2(:,:)

  double precision              :: EcRPA

! Hello world

  write(*,*)
  write(*,*)'**********************************'
  write(*,*)'* Generalized pp-RPA Calculation *'
  write(*,*)'**********************************'
  write(*,*)

! Initialization

  EcRPA = 0d0

  ispin = 4

  nOO = nO*(nO-1)/2
  nVV = nV*(nV-1)/2

  allocate(Om1(nVV),X1(nVV,nVV),Y1(nOO,nVV),Om2(nOO),X2(nVV,nOO),Y2(nOO,nOO), &
           Bpp(nVV,nOO),Cpp(nVV,nVV),Dpp(nOO,nOO))

  if(.not.TDA) call ppLR_B(ispin,nBas,nC,nO,nV,nR,nOO,nVV,1d0,ERI,Bpp)
               call ppLR_C(ispin,nBas,nC,nO,nV,nR,nVV,1d0,e,ERI,Cpp)
               call ppLR_D(ispin,nBas,nC,nO,nV,nR,nOO,1d0,e,ERI,Dpp)

  call ppLR(TDA,nOO,nVV,Bpp,Cpp,Dpp,Om1,X1,Y1,Om2,X2,Y2,EcRPA)

!   call print_transition_vectors_pp(.true.,nBas,nC,nO,nV,nR,nOO,nVV,dipole_int,Om1,X1,Y1,Om2,X2,Y2)

  call print_excitation_energies('ppRPA@GHF (N+2)',ispin,nVV,Om1)
  call print_excitation_energies('ppRPA@GHF (N-2)',ispin,nOO,Om2)

  write(*,*)
  write(*,*)'-------------------------------------------------------------------------------'
  write(*,'(2X,A50,F20.10,A3)') 'Tr@ppGRPA correlation energy           = ',EcRPA,' au'
  write(*,'(2X,A50,F20.10,A3)') 'Tr@ppGRPA total energy                 = ',ENuc + EHF + EcRPA,' au'
  write(*,*)'-------------------------------------------------------------------------------'
  write(*,*)

! Compute the correlation energy via the adiabatic connection 

! if(doACFDT) then

!   write(*,*) '--------------------------------------------------------'
!   write(*,*) 'Adiabatic connection version of ppRPA correlation energy'
!   write(*,*) '--------------------------------------------------------'
!   write(*,*)

!   call ppACFDT(TDA,singlet,triplet,nBas,nC,nO,nV,nR,ERI,e,EcRPA)

!   write(*,*)
!   write(*,*)'-------------------------------------------------------------------------------'
!   write(*,'(2X,A50,F20.10,A3)') 'AC@ppRPA correlation energy           =',EcRPA,' au'
!   write(*,'(2X,A50,F20.10,A3)') 'AC@ppRPA total energy                 =',ENuc + EHF + EcRPA(1) + EcRPA(2),' au'
!   write(*,*)'-------------------------------------------------------------------------------'
!   write(*,*)

! end if

  if(dotest) then
  
    call dump_test_value('G','ppGRPA correlation energy',EcRPA)

  end if

end subroutine