Added JSON in FCI

src/cipsi/NEED

@@ -1,3 +1,4 @@
+json
 perturbation
 zmq
 mpi

src/cipsi/cipsi.irp.f

@@ -16,7 +16,6 @@ subroutine run_cipsi
   double precision, external :: memory_of_double
   PROVIDE H_apply_buffer_allocated
 
-  N_iter = 1
   threshold_generators = 1.d0
   SOFT_TOUCH threshold_generators
 
@@ -76,7 +75,6 @@ subroutine run_cipsi
         )
       write(*,'(A)')  '--------------------------------------------------------------------------------'
 
-
     to_select = int(sqrt(dble(N_states))*dble(N_det)*selection_factor)
     to_select = max(N_states_diag, to_select)
     if (do_pt2) then
@@ -106,10 +104,10 @@ subroutine run_cipsi
 
     call save_energy(psi_energy_with_nucl_rep, pt2_data % pt2)
 
-    call save_iterations(psi_energy_with_nucl_rep(1:N_states),pt2_data % rpt2,N_det)
+    call increment_n_iter(psi_energy_with_nucl_rep, pt2_data)
     call print_extrapolated_energy()
     call print_mol_properties()
-    N_iter += 1
+    call write_cipsi_json(pt2_data,pt2_data_err)
 
     if (qp_stop()) exit
 
@@ -155,11 +153,13 @@ subroutine run_cipsi
     call save_energy(psi_energy_with_nucl_rep, pt2_data % pt2)
     call print_summary(psi_energy_with_nucl_rep(1:N_states), &
       pt2_data, pt2_data_err, N_det,N_configuration,N_states,psi_s2)
-    call save_iterations(psi_energy_with_nucl_rep(1:N_states),pt2_data % rpt2,N_det)
+    call increment_n_iter(psi_energy_with_nucl_rep, pt2_data)
     call print_extrapolated_energy()
     call print_mol_properties()
+    call write_cipsi_json(pt2_data,pt2_data_err)
   endif
   call pt2_dealloc(pt2_data)
   call pt2_dealloc(pt2_data_err)
 
 end
+

src/cipsi/stochastic_cipsi.irp.f

@@ -15,7 +15,6 @@ subroutine run_stochastic_cipsi
   double precision, external :: memory_of_double
   PROVIDE H_apply_buffer_allocated distributed_davidson mo_two_e_integrals_in_map
 
-  N_iter = 1
   threshold_generators = 1.d0
   SOFT_TOUCH threshold_generators
 
@@ -96,10 +95,10 @@ subroutine run_stochastic_cipsi
 
     call save_energy(psi_energy_with_nucl_rep, pt2_data % pt2)
 
-    call save_iterations(psi_energy_with_nucl_rep(1:N_states),pt2_data % rpt2,N_det)
+    call increment_n_iter(psi_energy_with_nucl_rep, pt2_data)
     call print_extrapolated_energy()
     call print_mol_properties()
-    N_iter += 1
+    call write_cipsi_json(pt2_data,pt2_data_err)
 
     if (qp_stop()) exit
 
@@ -135,9 +134,10 @@ subroutine run_stochastic_cipsi
     call save_energy(psi_energy_with_nucl_rep, pt2_data % pt2)
     call print_summary(psi_energy_with_nucl_rep, &
        pt2_data , pt2_data_err, N_det, N_configuration, N_states, psi_s2)
-    call save_iterations(psi_energy_with_nucl_rep(1:N_states),pt2_data % rpt2,N_det)
+    call increment_n_iter(psi_energy_with_nucl_rep, pt2_data)
     call print_extrapolated_energy()
     call print_mol_properties()
+    call write_cipsi_json(pt2_data,pt2_data_err)
   endif
   call pt2_dealloc(pt2_data)
   call pt2_dealloc(pt2_data_err)

src/cipsi/write_cipsi_json.irp.f

@@ -0,0 +1,53 @@
+subroutine write_cipsi_json(pt2_data, pt2_data_err)
+    use selection_types
+    implicit none
+    BEGIN_DOC
+!  Writes JSON data for CIPSI runs
+    END_DOC
+    type(pt2_type), intent(in) :: pt2_data, pt2_data_err
+    integer :: i,j,k
+
+    call lock_io
+    character*(64), allocatable    :: fmtk(:)
+    integer :: N_states_p, N_iter_p
+    N_states_p = min(N_states,N_det)
+    N_iter_p = min(N_iter,8)
+    allocate(fmtk(0:N_iter_p))
+    fmtk(:) = '(''   '',E22.15,'','')'
+    fmtk(N_iter_p) = '(''   '',E22.15)'
+
+    write(json_unit, json_dict_uopen_fmt)
+    write(json_unit, json_int_fmt) 'n_det', N_det
+    if (s2_eig) then
+      write(json_unit, json_int_fmt) 'n_cfg', N_configuration
+      if (only_expected_s2) then
+        write(json_unit, json_int_fmt) 'n_csf', N_csf
+      endif
+    endif
+    write(json_unit, json_array_open_fmt) 'states'
+    do k=1,N_states_p
+      write(json_unit, json_dict_uopen_fmt)
+      write(json_unit, json_real_fmt) 'energy', psi_energy_with_nucl_rep(k)
+      write(json_unit, json_real_fmt) 's2', psi_s2(k)
+      write(json_unit, json_real_fmt) 'pt2', pt2_data % pt2(k)
+      write(json_unit, json_real_fmt) 'pt2_err', pt2_data_err % pt2(k)
+      write(json_unit, json_real_fmt) 'rpt2', pt2_data % rpt2(k)
+      write(json_unit, json_real_fmt) 'rpt2_err', pt2_data_err % rpt2(k)
+      write(json_unit, json_real_fmt) 'variance', pt2_data % variance(k)
+      write(json_unit, json_real_fmt) 'variance_err', pt2_data_err % variance(k)
+      write(json_unit, json_array_open_fmt) 'ex_energy'
+      do i=2,N_iter_p
+          write(json_unit, fmtk(i)) extrapolated_energy(i,k)
+      enddo
+      write(json_unit, json_array_close_fmtx)
+      if (k < N_states_p) then
+        write(json_unit, json_dict_close_fmt)
+      else
+        write(json_unit, json_dict_close_fmtx)
+      endif
+    enddo
+    write(json_unit, json_array_close_fmtx)
+    write(json_unit, json_dict_close_fmt)
+    deallocate(fmtk)
+    call unlock_io
+end

src/fci/fci.irp.f

@@ -39,12 +39,19 @@ program fci
   if (.not.is_zmq_slave) then
     PROVIDE psi_det psi_coef mo_two_e_integrals_in_map
 
+    write(json_unit,json_array_open_fmt) 'fci'
+
     if (do_pt2) then
       call run_stochastic_cipsi
     else
       call run_cipsi
     endif
 
+    write(json_unit,json_dict_uopen_fmt)
+    write(json_unit,json_dict_close_fmtx)
+    write(json_unit,json_array_close_fmtx)
+    call json_close
+
   else
     PROVIDE mo_two_e_integrals_in_map pt2_min_parallel_tasks
 

src/hartree_fock/scf.irp.f

@@ -80,15 +80,14 @@ subroutine run
 
   mo_label = 'Orthonormalized'
 
-  write(json_unit,*) '"scf" : ['
+  write(json_unit,json_array_open_fmt) 'scf'
 
   call Roothaan_Hall_SCF
-  call ezfio_set_hartree_fock_energy(SCF_energy)
-
-  write(json_unit,*) ']'
 
+  write(json_unit,json_array_close_fmtx)
   call json_close
 
+  call ezfio_set_hartree_fock_energy(SCF_energy)
 end
 
 

src/iterations/EZFIO.cfg

@@ -1,24 +0,0 @@
-[n_iter]
-interface: ezfio
-doc: Number of saved iterations
-type:integer
-default: 1
-
-[n_det_iterations]
-interface: ezfio, provider
-doc: Number of determinants at each iteration
-type: integer
-size: (100)
- 
-[energy_iterations]
-interface: ezfio, provider
-doc: The variational energy at each iteration
-type: double precision 
-size: (determinants.n_states,100)
-
-[pt2_iterations]
-interface: ezfio, provider
-doc: The |PT2| correction at each iteration
-type: double precision 
-size: (determinants.n_states,100)
-

src/iterations/io.irp.f

@@ -1,37 +0,0 @@
-BEGIN_PROVIDER [ integer, n_iter  ]
-  implicit none
-  BEGIN_DOC
-! number of iterations
-  END_DOC
-
-  logical                        :: has
-  PROVIDE ezfio_filename
-  if (mpi_master) then
-
-      double precision :: zeros(N_states,100)
-      integer :: izeros(100)
-      zeros = 0.d0
-      izeros = 0
-      call ezfio_set_iterations_n_iter(0)
-      call ezfio_set_iterations_energy_iterations(zeros)
-      call ezfio_set_iterations_pt2_iterations(zeros)
-      call ezfio_set_iterations_n_det_iterations(izeros)
-      n_iter = 1
-  endif
-  IRP_IF MPI_DEBUG
-    print *,  irp_here, mpi_rank
-    call MPI_BARRIER(MPI_COMM_WORLD, ierr)
-  IRP_ENDIF
-  IRP_IF MPI
-    include 'mpif.h'
-    integer :: ierr
-    call MPI_BCAST( n_iter, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
-    if (ierr /= MPI_SUCCESS) then
-      stop 'Unable to read n_iter with MPI'
-    endif
-  IRP_ENDIF
-
-  call write_time(6)
-
-END_PROVIDER
-

src/iterations/iterations.irp.f

@@ -1,42 +1,65 @@
-BEGIN_PROVIDER [ double precision, extrapolated_energy, (N_iter,N_states) ]
+BEGIN_PROVIDER [ integer, N_iter  ]
   implicit none
   BEGIN_DOC
- ! Extrapolated energy, using E_var = f(PT2) where PT2=0
+! Number of CIPSI iterations
   END_DOC
- integer :: i
+
- do i=1,min(N_states,N_det)
+  N_iter = 0
+END_PROVIDER
+
+BEGIN_PROVIDER [ integer, N_iter_max ]
+ implicit none
+ BEGIN_DOC
+ ! Max number of iterations for extrapolations
+ END_DOC
+ N_iter_max = 8
+END_PROVIDER
+
+ BEGIN_PROVIDER [ double precision, energy_iterations , (n_states,N_iter_max) ]
+&BEGIN_PROVIDER [ double precision, pt2_iterations , (n_states,N_iter_max) ]
+&BEGIN_PROVIDER [ double precision, extrapolated_energy, (N_iter_max,N_states) ]
+  implicit none
+  BEGIN_DOC
+! The energy at each iteration for the extrapolations
+  END_DOC
+
+   energy_iterations = 0.d0
+   pt2_iterations = 0.d0
+   extrapolated_energy = 0.d0
+END_PROVIDER
+
+subroutine increment_n_iter(e, pt2_data)
+  use selection_types
+  implicit none
+  BEGIN_DOC
+! Does what is necessary to increment n_iter
+  END_DOC
+  double precision, intent(in) :: e(*)
+  type(pt2_type), intent(in)   :: pt2_data
+  integer :: k, i
+
+  if (N_det < N_states) return
+
+  if (N_iter < N_iter_max) then
+    N_iter += 1
+  else
+    do k=2,N_iter
+      energy_iterations(1:N_states,k-1) = energy_iterations(1:N_states,k)
+      pt2_iterations(1:N_states,k-1) = pt2_iterations(1:N_states,k)
+    enddo
+  endif
+  energy_iterations(1:N_states,N_iter) = e(1:N_states)
+  pt2_iterations(1:N_states,N_iter) = pt2_data % rpt2(1:N_states)
+
+  if (N_iter < 2) then
+    extrapolated_energy(1,:) = energy_iterations(:,1) + pt2_iterations(:,1)
+    extrapolated_energy(2,:) = energy_iterations(:,2) + pt2_iterations(:,2)
+  else
+    do i=1,N_states
       call extrapolate_data(N_iter,                               &
           energy_iterations(i,1:N_iter),                          &
              pt2_iterations(i,1:N_iter),                          &
           extrapolated_energy(1:N_iter,i))
     enddo
-END_PROVIDER
-
-
-subroutine save_iterations(e_, pt2_,n_)
-  implicit none
-  BEGIN_DOC
-! Update the energy in the EZFIO file.
-  END_DOC
-  integer, intent(in) :: n_
-  double precision, intent(in) :: e_(N_states), pt2_(N_states)
-  integer :: i
-
-  if (N_iter == 101) then
-    do i=2,N_iter-1
-      energy_iterations(1:N_states,N_iter-1) = energy_iterations(1:N_states,N_iter)
-      pt2_iterations(1:N_states,N_iter-1) = pt2_iterations(1:N_states,N_iter) 
-    enddo
-    N_iter = N_iter-1
-    TOUCH N_iter
   endif
-
-  energy_iterations(1:N_states,N_iter) = e_(1:N_states)
-     pt2_iterations(1:N_states,N_iter) = pt2_(1:N_states)
-  n_det_iterations(N_iter) = n_
-  call ezfio_set_iterations_N_iter(N_iter)
-  call ezfio_set_iterations_energy_iterations(energy_iterations)
-  call ezfio_set_iterations_pt2_iterations(pt2_iterations)
-  call ezfio_set_iterations_n_det_iterations(n_det_iterations)
 end
-

src/iterations/print_extrapolation.irp.f

@@ -5,10 +5,14 @@ subroutine print_extrapolated_energy
   END_DOC
 
   integer :: i,k
+  integer :: N_states_p, N_iter_p
 
   if (N_iter< 2) then
     return
   endif
+  N_states_p = min(N_states,N_det)
+  N_iter_p = min(N_iter, 8)
+
   write(*,'(A)') ''
   write(*,'(A)') 'Extrapolated energies'
   write(*,'(A)') '------------------------'
@@ -20,20 +24,20 @@ subroutine print_extrapolated_energy
   write(*,*)  '=========== ', '==================='
   write(*,*)  'minimum PT2 ', 'Extrapolated energy'
   write(*,*)  '=========== ', '==================='
-  do k=2,min(N_iter,8)
+  do k=2,N_iter_p
-    write(*,'(F11.4,2X,F18.8)') pt2_iterations(1,N_iter+1-k), extrapolated_energy(k,1)
+    write(*,'(F11.4,2X,F18.8)') pt2_iterations(1,k), extrapolated_energy(k,1)
   enddo
   write(*,*)  '=========== ', '==================='
 
-  do i=2, min(N_states,N_det)
+  do i=2, N_states_p
     print *,  ''
     print *,  'State ', i
     print *,  ''
     write(*,*)  '=========== ', '=================== ', '=================== ', '==================='
     write(*,*)  'minimum PT2 ', 'Extrapolated energy ', '  Excitation (a.u)  ', '  Excitation (eV)  '
     write(*,*)  '=========== ', '=================== ', '=================== ', '==================='
-    do k=2,min(N_iter,8)
+    do k=2,N_iter_p
-      write(*,'(F11.4,X,3(X,F18.8))') pt2_iterations(i,N_iter+1-k), extrapolated_energy(k,i), &
+      write(*,'(F11.4,X,3(X,F18.8))') pt2_iterations(i,k), extrapolated_energy(k,i), &
           extrapolated_energy(k,i) - extrapolated_energy(k,1), &
           (extrapolated_energy(k,i) - extrapolated_energy(k,1) ) * 27.211396641308d0
     enddo

src/json/json_formats.irp.f

@@ -8,6 +8,16 @@
 &BEGIN_PROVIDER [ character*(64), json_true_fmtx ]
 &BEGIN_PROVIDER [ character*(64), json_false_fmt ]
 &BEGIN_PROVIDER [ character*(64), json_false_fmtx ]
+&BEGIN_PROVIDER [ character*(64), json_array_open_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_array_uopen_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_array_close_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_array_close_uopen_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_array_close_fmtx ]
+&BEGIN_PROVIDER [ character*(64), json_dict_open_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_dict_uopen_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_dict_close_uopen_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_dict_close_fmt ]
+&BEGIN_PROVIDER [ character*(64), json_dict_close_fmtx ]
  implicit none
  BEGIN_DOC
  ! Formats for JSON output.
@@ -23,4 +33,14 @@
  json_true_fmtx  = '(''   "'',A,''": true'')'
  json_false_fmt  = '(''   "'',A,''": false,'')'
  json_false_fmtx = '(''   "'',A,''": false'')'
+ json_array_open_fmt   = '(''   "'',A,''": ['')'
+ json_array_uopen_fmt  = '(''   ['')'
+ json_array_close_fmt  = '(''   ],'')'
+ json_array_close_uopen_fmt  = '(''   ], ['')'
+ json_array_close_fmtx = '(''   ]'')'
+ json_dict_open_fmt    = '(''   "'',A,''": {'')'
+ json_dict_uopen_fmt   = '(''   {'')'
+ json_dict_close_fmt   = '(''   },'')'
+ json_dict_close_uopen_fmt   = '(''   }, {'')'
+ json_dict_close_fmtx  = '(''   }'')'
 END_PROVIDER

src/scf_utils/roothaan_hall_scf.irp.f

@@ -155,9 +155,9 @@ END_DOC
 
     call lock_io
     if (iteration_SCF == 1) then
-      write(json_unit, *) '{'
+      write(json_unit, json_dict_uopen_fmt)
     else
-      write(json_unit, *) '}, {'
+      write(json_unit, json_dict_close_uopen_fmt)
     endif
     write(json_unit, json_int_fmt) 'iteration', iteration_SCF
     write(json_unit, json_real_fmt) 'energy', energy_SCF
@@ -185,7 +185,7 @@ END_DOC
     if (qp_stop()) exit
 
   enddo
-  write(json_unit, *) '}'
+  write(json_unit, json_dict_close_fmtx)
 
  if (iteration_SCF < n_it_SCF_max) then
    mo_label = 'Canonical'