!!$ 
!!$ 
!!$                           MLD2P4  version 1.0
!!$  MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$             based on PSBLAS (Parallel Sparse BLAS version 2.2)
!!$  
!!$  (C) Copyright 2008
!!$
!!$                      Salvatore Filippone  University of Rome Tor Vergata       
!!$                      Alfredo Buttari      University of Rome Tor Vergata
!!$                      Pasqua D'Ambra       ICAR-CNR, Naples
!!$                      Daniela di Serafino  Second University of Naples
!!$ 
!!$  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 MLD2P4 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 MLD2P4 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.
!!$ 
!!$
module mld_inner_mod
  use mld_prec_type
  use mld_basep_bld_mod
  interface mld_baseprec_aply
    subroutine mld_sbaseprec_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_sbaseprc_type), intent(in) :: prec
      real(psb_spk_),intent(in)         :: x(:)
      real(psb_spk_),intent(inout)      :: y(:)
      real(psb_spk_),intent(in)         :: alpha,beta
      character(len=1)                    :: trans
      real(psb_spk_),target             :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_sbaseprec_aply
    subroutine mld_dbaseprec_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_dbaseprc_type), intent(in) :: prec
      real(psb_dpk_),intent(in)         :: x(:)
      real(psb_dpk_),intent(inout)      :: y(:)
      real(psb_dpk_),intent(in)         :: alpha,beta
      character(len=1)                    :: trans
      real(psb_dpk_),target             :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_dbaseprec_aply
    subroutine mld_cbaseprec_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_cbaseprc_type), intent(in) :: prec
      complex(psb_spk_),intent(in)      :: x(:)
      complex(psb_spk_),intent(inout)   :: y(:)
      complex(psb_spk_),intent(in)      :: alpha,beta
      character(len=1)                    :: trans
      complex(psb_spk_),target          :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_cbaseprec_aply
    subroutine mld_zbaseprec_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_zbaseprc_type), intent(in) :: prec
      complex(psb_dpk_),intent(in)      :: x(:)
      complex(psb_dpk_),intent(inout)   :: y(:)
      complex(psb_dpk_),intent(in)      :: alpha,beta
      character(len=1)                    :: trans
      complex(psb_dpk_),target          :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_zbaseprec_aply
  end interface

  interface mld_as_aply
    subroutine mld_sas_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_sbaseprc_type), intent(in) :: prec
      real(psb_spk_),intent(in)         :: x(:)
      real(psb_spk_),intent(inout)      :: y(:)
      real(psb_spk_),intent(in)         :: alpha,beta
      character(len=1)                    :: trans
      real(psb_spk_),target             :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_sas_aply
    subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_dbaseprc_type), intent(in) :: prec
      real(psb_dpk_),intent(in)         :: x(:)
      real(psb_dpk_),intent(inout)      :: y(:)
      real(psb_dpk_),intent(in)         :: alpha,beta
      character(len=1)                    :: trans
      real(psb_dpk_),target             :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_das_aply
    subroutine mld_cas_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_cbaseprc_type), intent(in) :: prec
      complex(psb_spk_),intent(in)      :: x(:)
      complex(psb_spk_),intent(inout)   :: y(:)
      complex(psb_spk_),intent(in)      :: alpha,beta
      character(len=1)                    :: trans
      complex(psb_spk_),target          :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_cas_aply
    subroutine mld_zas_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_zbaseprc_type), intent(in) :: prec
      complex(psb_dpk_),intent(in)      :: x(:)
      complex(psb_dpk_),intent(inout)   :: y(:)
      complex(psb_dpk_),intent(in)      :: alpha,beta
      character(len=1)                    :: trans
      complex(psb_dpk_),target          :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_zas_aply
  end interface

  interface mld_mlprec_aply
    subroutine mld_smlprec_aply(alpha,baseprecv,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_sbaseprc_type), intent(in) :: baseprecv(:)
      real(psb_spk_),intent(in)         :: alpha,beta
      real(psb_spk_),intent(in)         :: x(:)
      real(psb_spk_),intent(inout)      :: y(:)
      character                           :: trans
      real(psb_spk_),target             :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_smlprec_aply
    subroutine mld_dmlprec_aply(alpha,baseprecv,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_dbaseprc_type), intent(in) :: baseprecv(:)
      real(psb_dpk_),intent(in)         :: alpha,beta
      real(psb_dpk_),intent(in)         :: x(:)
      real(psb_dpk_),intent(inout)      :: y(:)
      character                           :: trans
      real(psb_dpk_),target             :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_dmlprec_aply
    subroutine mld_cmlprec_aply(alpha,baseprecv,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_cbaseprc_type), intent(in) :: baseprecv(:)
      complex(psb_spk_),intent(in)      :: alpha,beta
      complex(psb_spk_),intent(in)      :: x(:)
      complex(psb_spk_),intent(inout)   :: y(:)
      character                           :: trans
      complex(psb_spk_),target          :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_cmlprec_aply
    subroutine mld_zmlprec_aply(alpha,baseprecv,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type),intent(in)      :: desc_data
      type(mld_zbaseprc_type), intent(in) :: baseprecv(:)
      complex(psb_dpk_),intent(in)      :: alpha,beta
      complex(psb_dpk_),intent(in)      :: x(:)
      complex(psb_dpk_),intent(inout)   :: y(:)
      character                           :: trans
      complex(psb_dpk_),target          :: work(:)
      integer, intent(out)                :: info
    end subroutine mld_zmlprec_aply
  end interface


  interface mld_sub_aply
    subroutine mld_ssub_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)       :: desc_data
      type(mld_sbaseprc_type), intent(in)   :: prec
      real(psb_spk_),intent(in)           :: x(:)
      real(psb_spk_),intent(inout)        :: y(:)
      real(psb_spk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)           :: trans
      real(psb_spk_),target,intent(inout) :: work(:)
      integer, intent(out)                  :: info
    end subroutine mld_ssub_aply
    subroutine mld_dsub_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)       :: desc_data
      type(mld_dbaseprc_type), intent(in)   :: prec
      real(psb_dpk_),intent(in)           :: x(:)
      real(psb_dpk_),intent(inout)        :: y(:)
      real(psb_dpk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)           :: trans
      real(psb_dpk_),target,intent(inout) :: work(:)
      integer, intent(out)                  :: info
    end subroutine mld_dsub_aply
    subroutine mld_csub_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)          :: desc_data
      type(mld_cbaseprc_type), intent(in)      :: prec
      complex(psb_spk_),intent(in)           :: x(:)
      complex(psb_spk_),intent(inout)        :: y(:)
      complex(psb_spk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)              :: trans
      complex(psb_spk_),target,intent(inout) :: work(:)
      integer, intent(out)                     :: info
    end subroutine mld_csub_aply
    subroutine mld_zsub_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)          :: desc_data
      type(mld_zbaseprc_type), intent(in)      :: prec
      complex(psb_dpk_),intent(in)           :: x(:)
      complex(psb_dpk_),intent(inout)        :: y(:)
      complex(psb_dpk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)              :: trans
      complex(psb_dpk_),target,intent(inout) :: work(:)
      integer, intent(out)                     :: info
    end subroutine mld_zsub_aply
  end interface


  interface mld_sub_solve
    subroutine mld_ssub_solve(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)       :: desc_data
      type(mld_sbaseprc_type), intent(in)   :: prec
      real(psb_spk_),intent(in)           :: x(:)
      real(psb_spk_),intent(inout)        :: y(:)
      real(psb_spk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)           :: trans
      real(psb_spk_),target,intent(inout) :: work(:)
      integer, intent(out)                  :: info
    end subroutine mld_ssub_solve
    subroutine mld_dsub_solve(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)       :: desc_data
      type(mld_dbaseprc_type), intent(in)   :: prec
      real(psb_dpk_),intent(in)           :: x(:)
      real(psb_dpk_),intent(inout)        :: y(:)
      real(psb_dpk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)           :: trans
      real(psb_dpk_),target,intent(inout) :: work(:)
      integer, intent(out)                  :: info
    end subroutine mld_dsub_solve
    subroutine mld_csub_solve(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)          :: desc_data
      type(mld_cbaseprc_type), intent(in)      :: prec
      complex(psb_spk_),intent(in)           :: x(:)
      complex(psb_spk_),intent(inout)        :: y(:)
      complex(psb_spk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)              :: trans
      complex(psb_spk_),target,intent(inout) :: work(:)
      integer, intent(out)                     :: info
    end subroutine mld_csub_solve
    subroutine mld_zsub_solve(alpha,prec,x,beta,y,desc_data,trans,work,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_desc_type), intent(in)          :: desc_data
      type(mld_zbaseprc_type), intent(in)      :: prec
      complex(psb_dpk_),intent(in)           :: x(:)
      complex(psb_dpk_),intent(inout)        :: y(:)
      complex(psb_dpk_),intent(in)           :: alpha,beta
      character(len=1),intent(in)              :: trans
      complex(psb_dpk_),target,intent(inout) :: work(:)
      integer, intent(out)                     :: info
    end subroutine mld_zsub_solve
  end interface


  interface mld_asmat_bld
    Subroutine mld_sasmat_bld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)                 :: ptype,novr
      Type(psb_sspmat_type), Intent(in)   ::  a
      Type(psb_sspmat_type), Intent(out)  ::  blk
      Type(psb_desc_type), Intent(inout)  :: desc_p
      Type(psb_desc_type), Intent(in)     :: desc_data 
      Character, Intent(in)               :: upd
      integer, intent(out)                :: info
      character(len=5), optional          :: outfmt
    end Subroutine mld_sasmat_bld
    Subroutine mld_dasmat_bld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)                 :: ptype,novr
      Type(psb_dspmat_type), Intent(in)   ::  a
      Type(psb_dspmat_type), Intent(out)  ::  blk
      Type(psb_desc_type), Intent(inout)  :: desc_p
      Type(psb_desc_type), Intent(in)     :: desc_data 
      Character, Intent(in)               :: upd
      integer, intent(out)                :: info
      character(len=5), optional          :: outfmt
    end Subroutine mld_dasmat_bld
    Subroutine mld_casmat_bld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)                 :: ptype,novr
      Type(psb_cspmat_type), Intent(in)   ::  a
      Type(psb_cspmat_type), Intent(out)  ::  blk
      Type(psb_desc_type), Intent(inout)  :: desc_p
      Type(psb_desc_type), Intent(in)     :: desc_data 
      Character, Intent(in)               :: upd
      integer, intent(out)                :: info
      character(len=5), optional          :: outfmt
    end Subroutine mld_casmat_bld
    Subroutine mld_zasmat_bld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)                 :: ptype,novr
      Type(psb_zspmat_type), Intent(in)   ::  a
      Type(psb_zspmat_type), Intent(out)  ::  blk
      Type(psb_desc_type), Intent(inout)  :: desc_p
      Type(psb_desc_type), Intent(in)     :: desc_data 
      Character, Intent(in)               :: upd
      integer, intent(out)                :: info
      character(len=5), optional          :: outfmt
    end Subroutine mld_zasmat_bld
  end interface

  interface mld_sp_renum
    subroutine mld_ssp_renum(a,blck,p,atmp,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_sspmat_type), intent(in)      :: a,blck
      type(psb_sspmat_type), intent(out)     :: atmp
      type(mld_sbaseprc_type), intent(inout) :: p
      integer, intent(out)   :: info
    end subroutine mld_ssp_renum
    subroutine mld_dsp_renum(a,blck,p,atmp,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_dspmat_type), intent(in)      :: a,blck
      type(psb_dspmat_type), intent(out)     :: atmp
      type(mld_dbaseprc_type), intent(inout) :: p
      integer, intent(out)   :: info
    end subroutine mld_dsp_renum
    subroutine mld_csp_renum(a,blck,p,atmp,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_cspmat_type), intent(in)      :: a,blck
      type(psb_cspmat_type), intent(out)     :: atmp
      type(mld_cbaseprc_type), intent(inout) :: p
      integer, intent(out)   :: info
    end subroutine mld_csp_renum
    subroutine mld_zsp_renum(a,blck,p,atmp,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_zspmat_type), intent(in)      :: a,blck
      type(psb_zspmat_type), intent(out)     :: atmp
      type(mld_zbaseprc_type), intent(inout) :: p
      integer, intent(out)   :: info
    end subroutine mld_zsp_renum
  end interface

  interface mld_aggrmap_bld
    subroutine mld_saggrmap_bld(aggr_type,a,desc_a,nlaggr,ilaggr,info)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)               :: aggr_type
      type(psb_sspmat_type), intent(in), target :: a
      type(psb_desc_type), intent(in)   :: desc_a
      integer, allocatable, intent(out) :: ilaggr(:),nlaggr(:)
      integer, intent(out)              :: info
    end subroutine mld_saggrmap_bld
    subroutine mld_daggrmap_bld(aggr_type,a,desc_a,nlaggr,ilaggr,info)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)               :: aggr_type
      type(psb_dspmat_type), intent(in), target :: a
      type(psb_desc_type), intent(in)   :: desc_a
      integer, allocatable, intent(out) :: ilaggr(:),nlaggr(:)
      integer, intent(out)              :: info
    end subroutine mld_daggrmap_bld
    subroutine mld_caggrmap_bld(aggr_type,a,desc_a,nlaggr,ilaggr,info)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)               :: aggr_type
      type(psb_cspmat_type), intent(in), target :: a
      type(psb_desc_type), intent(in)   :: desc_a
      integer, allocatable, intent(out) :: ilaggr(:),nlaggr(:)
      integer, intent(out)              :: info
    end subroutine mld_caggrmap_bld
    subroutine mld_zaggrmap_bld(aggr_type,a,desc_a,nlaggr,ilaggr,info)
      use psb_base_mod
      use mld_prec_type
      integer, intent(in)               :: aggr_type
      type(psb_zspmat_type), intent(in), target :: a
      type(psb_desc_type), intent(in)   :: desc_a
      integer, allocatable, intent(out) :: ilaggr(:),nlaggr(:)
      integer, intent(out)              :: info
    end subroutine mld_zaggrmap_bld
  end interface

  interface mld_aggrmat_asb
    subroutine mld_saggrmat_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_sspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_sspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_sbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_saggrmat_asb
    subroutine mld_daggrmat_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_dspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_dspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_dbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_daggrmat_asb
    subroutine mld_caggrmat_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_cspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_cspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_cbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_caggrmat_asb
    subroutine mld_zaggrmat_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_zspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_zspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_zbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_zaggrmat_asb
  end interface

  interface mld_aggrmat_raw_asb
    subroutine mld_saggrmat_raw_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_sspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_sspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_sbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_saggrmat_raw_asb
    subroutine mld_daggrmat_raw_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_dspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_dspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_dbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_daggrmat_raw_asb
    subroutine mld_caggrmat_raw_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_cspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_cspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_cbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_caggrmat_raw_asb
    subroutine mld_zaggrmat_raw_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_zspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_zspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_zbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_zaggrmat_raw_asb
  end interface

  interface mld_aggrmat_smth_asb
    subroutine mld_saggrmat_smth_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_sspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_sspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_sbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_saggrmat_smth_asb
    subroutine mld_daggrmat_smth_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_dspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_dspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_dbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_daggrmat_smth_asb
    subroutine mld_caggrmat_smth_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_cspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_cspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_cbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_caggrmat_smth_asb
    subroutine mld_zaggrmat_smth_asb(a,desc_a,ac,desc_ac,p,info)
      use psb_base_mod
      use mld_prec_type
      type(psb_zspmat_type), intent(in)              :: a
      type(psb_desc_type), intent(in)                :: desc_a
      type(psb_zspmat_type), intent(out)             :: ac
      type(psb_desc_type), intent(out)               :: desc_ac
      type(mld_zbaseprc_type), intent(inout), target :: p
      integer, intent(out)                           :: info
    end subroutine mld_zaggrmat_smth_asb
  end interface

end module mld_inner_mod