diff --git a/plugins/MPI/broadcast.irp.f b/plugins/MPI/broadcast.irp.f
new file mode 100644
index 00000000..11c5698a
--- /dev/null
+++ b/plugins/MPI/broadcast.irp.f
@@ -0,0 +1,81 @@
+subroutine mpi_bcast_psi(energy, size_energy)
+  implicit none
+  BEGIN_DOC
+! Broadcast the wave function via MPI
+  END_DOC
+  integer, intent(in)            :: size_energy 
+  double precision, intent(inout)  :: energy(size_energy) 
+  integer :: sze
+  PROVIDE mpi_initialized
+
+  IRP_IF MPI
+    include 'mpif.h'
+    integer :: ierr
+
+    call MPI_BCAST (N_states, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast N_states'
+      stop -1
+    endif
+
+    call MPI_BCAST (N_det, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast N_det'
+      stop -1
+    endif
+
+    call MPI_BCAST (psi_det_size, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast psi_det_size'
+      stop -1
+    endif
+
+    if (.not.mpi_master) then
+      TOUCH psi_det_size N_det N_states
+    endif
+
+    print *,  size(psi_det), psi_det_size
+    call MPI_BCAST (psi_det, size(psi_det), MPI_BIT_KIND, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast psi_det'
+      stop -1
+    endif
+
+    call MPI_BCAST (psi_coef, size(psi_coef), MPI_DOUBLE_PRECISION, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast psi_coef'
+      stop -1
+    endif
+
+    if (.not.mpi_master) then
+      TOUCH psi_det psi_coef
+    endif
+
+    call MPI_BCAST (N_det_generators, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast N_det_generators'
+      stop -1
+    endif
+
+    if (.not.mpi_master) then
+      TOUCH N_det_generators
+    endif
+
+    call MPI_BCAST (N_det_selectors, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast N_det_selectors'
+      stop -1
+    endif
+
+    if (.not.mpi_master) then
+      TOUCH N_det_selectors
+    endif
+
+    call MPI_BCAST (energy, size(energy), MPI_DOUBLE_PRECISION, 0, MPI_COMM_WORLD, ierr)
+    if (ierr /= 0) then
+      print *,  'Unable to broadcast energy'
+      stop -1
+    endif
+
+  IRP_ENDIF
+end