diff --git a/base/tools/psb_iallc.f90 b/base/tools/psb_iallc.f90
new file mode 100644
index 00000000..7c817b9e
--- /dev/null
+++ b/base/tools/psb_iallc.f90
@@ -0,0 +1,422 @@
+!!$ 
+!!$              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: psb_iallc.f90
+!
+! Function: psb_ialloc
+!    Allocates dense matrix for PSBLAS routines. 
+!    The descriptor may be in either the build or assembled state.
+! 
+! Arguments: 
+!    x      - the matrix to be allocated.
+!    desc_a - the communication descriptor.
+!    info   - Return code
+!    n      - optional number of columns.
+!    lb     - optional lower bound on column indices
+subroutine psb_ialloc(x, desc_a, info, n, lb)
+  use psb_base_mod, psb_protect_name => psb_ialloc
+  use psi_mod
+  implicit none
+
+  !....parameters...
+  integer(psb_ipk_), allocatable, intent(out) :: x(:,:)
+  type(psb_desc_type), intent(in)       :: desc_a
+  integer(psb_ipk_),intent(out)                   :: info
+  integer(psb_ipk_), optional, intent(in)         :: n, lb
+
+  !locals
+  integer(psb_ipk_) :: np,me,err,nr,i,j,err_act
+  integer(psb_ipk_) :: ictxt,n_
+  integer(psb_ipk_) :: int_err(5),exch(3)
+  character(len=20)   :: name
+
+  name='psb_geall'
+  if(psb_get_errstatus() /= 0) return 
+  info=psb_success_
+  err=0
+  int_err(1)=0
+  call psb_erractionsave(err_act)
+
+  ictxt=desc_a%get_context()
+
+  call psb_info(ictxt, me, np)
+  if (np == -1) then
+    info = psb_err_context_error_
+    call psb_errpush(info,name)
+    goto 9999
+  endif
+
+  !... check m and n parameters....
+  if (.not.psb_is_ok_desc(desc_a)) then 
+    info = psb_err_input_matrix_unassembled_
+    call psb_errpush(info,name)
+    goto 9999
+  endif
+
+  if (present(n)) then 
+    n_ = n
+  else
+    n_ = 1
+  endif
+  !global check on n parameters
+  if (me == psb_root_) then
+    exch(1)=n_
+    call psb_bcast(ictxt,exch(1),root=psb_root_)
+  else
+    call psb_bcast(ictxt,exch(1),root=psb_root_)
+    if (exch(1) /= n_) then
+      info=psb_err_parm_differs_among_procs_
+      int_err(1)=1
+      call psb_errpush(info,name,int_err)
+      goto 9999
+    endif
+  endif
+
+  !....allocate x .....
+  if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
+    nr = max(1,desc_a%get_local_cols())
+  else if (psb_is_bld_desc(desc_a)) then
+    nr = max(1,desc_a%get_local_rows())
+  else
+    info = psb_err_internal_error_
+    call psb_errpush(info,name,int_err,a_err='Invalid desc_a')
+    goto 9999
+  endif
+
+  call psb_realloc(nr,n_,x,info,lb2=lb)
+  if (info /= psb_success_) then
+    info=psb_err_alloc_request_
+    int_err(1)=nr*n_
+    call psb_errpush(info,name,int_err,a_err='integer(psb_ipk_)')
+    goto 9999
+  endif
+
+  x(:,:) = izero
+
+  call psb_erractionrestore(err_act)
+  return
+
+9999 call psb_error_handler(ictxt,err_act)
+
+  return
+
+end subroutine psb_ialloc
+
+!!$ 
+!!$              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.
+!!$ 
+!!$  
+!
+! Function: psb_iallocv
+!    Allocates dense matrix for PSBLAS routines
+!    The descriptor may be in either the build or assembled state.
+! 
+! Arguments: 
+!    x(:)   - the matrix to be allocated.
+!    desc_a - the communication descriptor.
+!    info   - return code
+subroutine psb_iallocv(x, desc_a,info,n)
+  use psb_base_mod, psb_protect_name => psb_iallocv
+  use psi_mod
+  implicit none
+
+  !....parameters...
+  integer(psb_ipk_), allocatable, intent(out) :: x(:)
+  type(psb_desc_type), intent(in) :: desc_a
+  integer(psb_ipk_),intent(out)             :: info
+  integer(psb_ipk_), optional, intent(in)   :: n
+
+  !locals
+  integer(psb_ipk_) :: np,me,nr,i,err_act
+  integer(psb_ipk_) :: ictxt, int_err(5)
+  integer(psb_ipk_) :: debug_level, debug_unit
+  character(len=20)   :: name
+
+  if(psb_get_errstatus() /= 0) return 
+  info=psb_success_
+  name='psb_geall'
+  call psb_erractionsave(err_act)
+  debug_unit  = psb_get_debug_unit()
+  debug_level = psb_get_debug_level()
+
+  ictxt=desc_a%get_context()
+
+  call psb_info(ictxt, me, np)
+  !     ....verify blacs grid correctness..
+  if (np == -1) then
+    info = psb_err_context_error_
+    call psb_errpush(info,name)
+    goto 9999
+  endif
+
+  !... check m and n parameters....
+  if (.not.psb_is_ok_desc(desc_a)) then 
+    info = psb_err_input_matrix_unassembled_
+    call psb_errpush(info,name)
+    goto 9999
+  endif
+
+  ! As this is a rank-1 array, optional parameter N is actually ignored.
+
+  !....allocate x .....
+  if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
+    nr = max(1,desc_a%get_local_cols())
+  else if (psb_is_bld_desc(desc_a)) then
+    nr = max(1,desc_a%get_local_rows())
+  else
+    info = psb_err_internal_error_
+    call psb_errpush(info,name,int_err,a_err='Invalid desc_a')
+    goto 9999
+  endif
+
+  call psb_realloc(nr,x,info)
+  if (info /= psb_success_) then
+    info=psb_err_alloc_request_
+    int_err(1)=nr
+    call psb_errpush(info,name,int_err,a_err='integer(psb_ipk_)')
+    goto 9999
+  endif
+
+  x(:) = izero
+
+  call psb_erractionrestore(err_act)
+  return
+
+9999 call psb_error_handler(ictxt,err_act)
+
+  return
+
+end subroutine psb_iallocv
+
+
+subroutine psb_ialloc_vect(x, desc_a,info,n)
+  use psb_base_mod, psb_protect_name => psb_ialloc_vect
+  use psi_mod
+  implicit none
+
+  !....parameters...
+  type(psb_i_vect_type), intent(out)  :: x
+  type(psb_desc_type), intent(in) :: desc_a
+  integer(psb_ipk_),intent(out)             :: info
+  integer(psb_ipk_), optional, intent(in)   :: n
+
+  !locals
+  integer(psb_ipk_) :: np,me,nr,i,err_act
+  integer(psb_ipk_) :: ictxt, int_err(5)
+  integer(psb_ipk_) :: debug_level, debug_unit
+  character(len=20)   :: name
+
+  info=psb_success_
+  if (psb_errstatus_fatal()) return 
+  name='psb_geall'
+  call psb_erractionsave(err_act)
+  debug_unit  = psb_get_debug_unit()
+  debug_level = psb_get_debug_level()
+
+  ictxt=desc_a%get_context()
+
+  call psb_info(ictxt, me, np)
+  !     ....verify blacs grid correctness..
+  if (np == -1) then
+    info = psb_err_context_error_
+    call psb_errpush(info,name)
+    goto 9999
+  endif
+
+  !... check m and n parameters....
+  if (.not.desc_a%is_ok()) then
+    info = psb_err_invalid_cd_state_
+    call psb_errpush(info,name)
+    goto 9999
+  end if
+
+  ! As this is a rank-1 array, optional parameter N is actually ignored.
+
+  !....allocate x .....
+  if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
+    nr = max(1,desc_a%get_local_cols())
+  else if (psb_is_bld_desc(desc_a)) then
+    nr = max(1,desc_a%get_local_rows())
+  else
+    info = psb_err_internal_error_
+    call psb_errpush(info,name,int_err,a_err='Invalid desc_a')
+    goto 9999
+  endif
+
+  allocate(psb_i_base_vect_type :: x%v, stat=info) 
+  if (info == 0) call x%all(nr,info)
+  if (psb_errstatus_fatal()) then 
+    info=psb_err_alloc_request_
+    int_err(1)=nr
+    call psb_errpush(info,name,int_err,a_err='real(psb_spk_)')
+    goto 9999
+  endif
+  call x%zero()
+
+  call psb_erractionrestore(err_act)
+  return
+
+9999 call psb_error_handler(ictxt,err_act)
+
+  return
+
+end subroutine psb_ialloc_vect
+
+subroutine psb_ialloc_vect_r2(x, desc_a,info,n,lb)
+  use psb_base_mod, psb_protect_name => psb_ialloc_vect_r2
+  use psi_mod
+  implicit none
+
+  !....parameters...
+  type(psb_i_vect_type), allocatable, intent(out)  :: x(:)
+  type(psb_desc_type), intent(in) :: desc_a
+  integer(psb_ipk_),intent(out)             :: info
+  integer(psb_ipk_), optional, intent(in)   :: n,lb
+
+  !locals
+  integer(psb_ipk_) :: np,me,nr,i,err_act, n_, lb_
+  integer(psb_ipk_) :: ictxt, int_err(5), exch(1)
+  integer(psb_ipk_) :: debug_level, debug_unit
+  character(len=20)  :: name
+
+  info=psb_success_
+  if (psb_errstatus_fatal()) return 
+  name='psb_geall'
+  call psb_erractionsave(err_act)
+  debug_unit  = psb_get_debug_unit()
+  debug_level = psb_get_debug_level()
+
+  ictxt=desc_a%get_context()
+
+  call psb_info(ictxt, me, np)
+  !     ....verify blacs grid correctness..
+  if (np == -1) then
+    info = psb_err_context_error_
+    call psb_errpush(info,name)
+    goto 9999
+  endif
+
+  !... check m and n parameters....
+  if (.not.desc_a%is_ok()) then
+    info = psb_err_invalid_cd_state_
+    call psb_errpush(info,name)
+    goto 9999
+  end if
+
+  if (present(n)) then 
+    n_ = n
+  else
+    n_ = 1
+  endif
+  if (present(lb)) then 
+    lb_ = lb
+  else
+    lb_ = 1
+  endif
+
+  !global check on n parameters
+  if (me == psb_root_) then
+    exch(1)=n_
+    call psb_bcast(ictxt,exch(1),root=psb_root_)
+  else
+    call psb_bcast(ictxt,exch(1),root=psb_root_)
+    if (exch(1) /= n_) then
+      info=psb_err_parm_differs_among_procs_
+      int_err(1)=1
+      call psb_errpush(info,name,int_err)
+      goto 9999
+    endif
+  endif
+  ! As this is a rank-1 array, optional parameter N is actually ignored.
+
+  !....allocate x .....
+  if (desc_a%is_asb().or.desc_a%is_upd()) then
+    nr = max(1,desc_a%get_local_cols())
+  else if (desc_a%is_bld()) then
+    nr = max(1,desc_a%get_local_rows())
+  else
+    info = psb_err_internal_error_
+    call psb_errpush(info,name,int_err,a_err='Invalid desc_a')
+    goto 9999
+  endif
+
+  allocate(x(lb_:lb_+n_-1), stat=info)
+  if (info == 0) then 
+    do i=lb_, lb_+n_-1
+      allocate(psb_i_base_vect_type :: x(i)%v, stat=info) 
+      if (info == 0) call x(i)%all(nr,info)
+      if (info == 0) call x(i)%zero()
+      if (info /= 0) exit
+    end do
+  end if
+  if (psb_errstatus_fatal()) then 
+    info=psb_err_alloc_request_
+    int_err(1)=nr
+    call psb_errpush(info,name,int_err,a_err='real(psb_spk_)')
+    goto 9999
+  endif
+
+  call psb_erractionrestore(err_act)
+  return
+
+9999 call psb_error_handler(ictxt,err_act)
+
+  return
+
+end subroutine psb_ialloc_vect_r2