diff --git a/base/internals/Makefile b/base/internals/Makefile
index 2d3729bc..d1f37493 100644
--- a/base/internals/Makefile
+++ b/base/internals/Makefile
@@ -3,7 +3,7 @@ include ../../Make.inc
 FOBJS = psi_compute_size.o psi_crea_bnd_elem.o psi_crea_index.o \
         psi_crea_ovr_elem.o psi_bld_tmpovrl.o psi_dl_check.o \
 	psi_sort_dl.o \
-	psi_ldsc_pre_halo.o psi_bld_tmphalo.o\
+	psi_bld_tmphalo.o\
 	psi_sort_dl.o \
         psi_desc_impl.o psi_ovrl_restr.o psi_ovrl_save.o psi_ovrl_upd.o
 
diff --git a/base/internals/psi_ldsc_pre_halo.f90 b/base/internals/psi_ldsc_pre_halo.f90
deleted file mode 100644
index d72934db..00000000
--- a/base/internals/psi_ldsc_pre_halo.f90
+++ /dev/null
@@ -1,113 +0,0 @@
-!!$ 
-!!$              Parallel Sparse BLAS  version 3.1
-!!$    (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013
-!!$                       Salvatore Filippone    University of Rome Tor Vergata
-!!$                       Alfredo Buttari        CNRS-IRIT, Toulouse
-!!$ 
-!!$  Redistribution and use in source and binary forms, with or without
-!!$  modification, are permitted provided that the following conditions
-!!$  are met:
-!!$    1. Redistributions of source code must retain the above copyright
-!!$       notice, this list of conditions and the following disclaimer.
-!!$    2. Redistributions in binary form must reproduce the above copyright
-!!$       notice, this list of conditions, and the following disclaimer in the
-!!$       documentation and/or other materials provided with the distribution.
-!!$    3. The name of the PSBLAS group or the names of its contributors may
-!!$       not be used to endorse or promote products derived from this
-!!$       software without specific written permission.
-!!$ 
-!!$  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-!!$  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-!!$  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-!!$  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
-!!$  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-!!$  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-!!$  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-!!$  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-!!$  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-!!$  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-!!$  POSSIBILITY OF SUCH DAMAGE.
-!!$ 
-!!$  
-!
-! File: psi_ldsc_pre_halo.f90
-!
-! Subroutine: psi_ldsc_pre_halo
-!   Build initial versions of data exchange lists for the 
-!   large index space case.
-!   
-! 
-! Arguments: 
-!    desc     - type(psb_desc_type).    The communication descriptor.        
-!    ext_hv   - logical                   Should we work on the halo_index.
-!    info     - integer.                  return code.
-!
-subroutine psi_ldsc_pre_halo(desc,ext_hv,info)
-  use psb_desc_mod
-  use psb_serial_mod
-  use psb_const_mod
-  use psb_error_mod
-  use psb_penv_mod
-  use psb_realloc_mod
-  use psi_mod, psb_protect_name => psi_ldsc_pre_halo
-  implicit none
-  type(psb_desc_type), intent(inout) :: desc
-  logical, intent(in)  :: ext_hv
-  integer(psb_ipk_), intent(out) :: info
-
-  integer(psb_ipk_),allocatable :: helem(:),hproc(:)
-  integer(psb_ipk_),allocatable :: tmphl(:)
-
-  integer(psb_ipk_) ::  i,j,np,me,lhalo,nhalo,&
-       & n_col, err_act,  key, ih, nh, idx, nk,icomm
-  integer(psb_ipk_) :: ictxt,n_row
-  character(len=20)   :: name,ch_err
-
-  info = psb_success_
-  name = 'psi_ldsc_pre_halo'
-  call psb_erractionsave(err_act)
-
-  ictxt = desc%get_context()
-  icomm = desc%get_mpic()
-  n_row = desc%get_local_rows()
-  n_col = desc%get_local_cols()
-
-  ! check on blacs grid 
-  call psb_info(ictxt, me, np)
-  if (np == -1) then
-    info = psb_err_context_error_
-    call psb_errpush(info,name)
-    goto 9999
-  endif
-
-
-  if (.not.(psb_is_bld_desc(desc))) then 
-    info = psb_err_invalid_cd_state_
-    call psb_errpush(info,name)
-    goto 9999
-  end if
-
-  if (.not.ext_hv) then
-    call psi_bld_tmphalo(desc,info)
-    if (info /= psb_success_) then 
-      ch_err='psi_bld_tmphalo'
-      call psb_errpush(info,name,a_err=ch_err)
-      goto 9999
-    end if
-  end if
-
-  call psb_erractionrestore(err_act)
-  return
-
-9999 continue
-  call psb_erractionrestore(err_act)
-
-  if (err_act == psb_act_ret_) then
-    return
-  else
-    call psb_error(ictxt)
-  end if
-  return
-
-
-end subroutine psi_ldsc_pre_halo
diff --git a/base/modules/psi_i_mod.f90 b/base/modules/psi_i_mod.f90
index 5a089eb8..71693d8f 100644
--- a/base/modules/psi_i_mod.f90
+++ b/base/modules/psi_i_mod.f90
@@ -120,15 +120,6 @@ module psi_i_mod
     end subroutine psi_fnd_owner
   end interface
 
-  interface psi_ldsc_pre_halo
-    subroutine psi_ldsc_pre_halo(desc,ext_hv,info)
-      import :: psb_desc_type, psb_ipk_
-      type(psb_desc_type), intent(inout) :: desc
-      logical, intent(in)  :: ext_hv
-      integer(psb_ipk_), intent(out) :: info
-    end subroutine psi_ldsc_pre_halo
-  end interface
-
   interface psi_bld_tmphalo
     subroutine psi_bld_tmphalo(desc,info)
       import :: psb_desc_type, psb_ipk_
diff --git a/base/tools/psb_icdasb.F90 b/base/tools/psb_icdasb.F90
index 59cc7883..6015e4cd 100644
--- a/base/tools/psb_icdasb.F90
+++ b/base/tools/psb_icdasb.F90
@@ -114,10 +114,12 @@ subroutine psb_icdasb(desc,info,ext_hv)
        & write(debug_unit, *) me,' ',trim(name),': start'
 
   if (allocated(desc%indxmap)) then 
-    call psi_ldsc_pre_halo(desc,ext_hv_,info)
-    if (info /= psb_success_) then
-      call psb_errpush(psb_err_from_subroutine_,name,a_err='ldsc_pre_halo')
-      goto 9999
+    if (.not.ext_hv_) then 
+      call psi_bld_tmphalo(desc,info)
+      if (info /= psb_success_) then
+        call psb_errpush(psb_err_from_subroutine_,name,a_err='bld_tmphalo')
+        goto 9999
+      end if
     end if
 
     ! Take out the lists for ovrlap, halo and ext...