psblas3/base/modules/psb_tools_mod.f90

!!$ 
!!$              Parallel Sparse BLAS  v2.0
!!$    (C) Copyright 2006 Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        University of Rome Tor Vergata
!!$ 
!!$  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
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!!$  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$  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 psb_tools_mod
  use psb_const_mod
  use psb_gps_mod
  use psb_spmat_type

  interface  psb_geall
    ! 2-D double precision version
    subroutine psb_dalloc(x, desc_a, info, n)
      use psb_descriptor_type
      implicit none
      real(kind(1.d0)), allocatable, intent(out) :: x(:,:)
      type(psb_desc_type), intent(in) :: desc_a
      integer,intent(out)             :: info
      integer, optional, intent(in)   :: n
    end subroutine psb_dalloc
    ! 1-D double precision version
    subroutine psb_dallocv(x, desc_a,info,n)
      use psb_descriptor_type
      real(kind(1.d0)), allocatable, intent(out)       :: x(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer,intent(out)             :: info
      integer, optional, intent(in)   :: n
    end subroutine psb_dallocv
    ! 2-D integer version
    subroutine psb_ialloc(x, desc_a, info,n)
      use psb_descriptor_type
      integer, allocatable, intent(out)                 :: x(:,:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer, intent(out)             :: info
      integer, optional, intent(in)    :: n
    end subroutine psb_ialloc
    subroutine psb_iallocv(x, desc_a,info,n)
      use psb_descriptor_type
      integer, allocatable, intent(out)                :: x(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
      integer, optional, intent(in)   :: n
    end subroutine psb_iallocv
    ! 2-D double precision version
    subroutine psb_zalloc(x, desc_a, info, n)
      use psb_descriptor_type
      implicit none
      complex(kind(1.d0)), allocatable, intent(out)    :: x(:,:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
      integer, optional, intent(in)   :: n
    end subroutine psb_zalloc
    ! 1-D double precision version
    subroutine psb_zallocv(x, desc_a,info,n)
      use psb_descriptor_type
      complex(kind(1.d0)), allocatable, intent(out)    :: x(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
      integer, optional, intent(in)   :: n
    end subroutine psb_zallocv
  end interface


  interface psb_geasb
    ! 2-D double precision version
    subroutine psb_dasb(x, desc_a, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      real(kind(1.d0)), allocatable, intent(inout)       ::  x(:,:)
      integer, intent(out)            ::  info
    end subroutine psb_dasb
    ! 1-D double precision version
    subroutine psb_dasbv(x, desc_a, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      real(kind(1.d0)), allocatable, intent(inout)   ::  x(:)
      integer, intent(out)        ::  info
    end subroutine psb_dasbv
    ! 2-D integer version
    subroutine psb_iasb(x, desc_a, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      integer, allocatable, intent(inout)                ::  x(:,:)
      integer, intent(out)            ::  info
    end subroutine psb_iasb
    ! 1-D integer version
    subroutine psb_iasbv(x, desc_a, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      integer, allocatable, intent(inout)   ::  x(:)
      integer, intent(out)        ::  info
    end subroutine psb_iasbv
    ! 2-D double precision version
    subroutine psb_zasb(x, desc_a, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      complex(kind(1.d0)), allocatable, intent(inout)       ::  x(:,:)
      integer, intent(out)            ::  info
    end subroutine psb_zasb
    ! 1-D double precision version
    subroutine psb_zasbv(x, desc_a, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      complex(kind(1.d0)), allocatable, intent(inout)   ::  x(:)
      integer, intent(out)        ::  info
    end subroutine psb_zasbv
  end interface

  interface psb_sphalo
    Subroutine psb_dsphalo(a,desc_a,blk,info,rwcnv,clcnv,cliprow,outfmt,data)
      use psb_descriptor_type
      use psb_spmat_type
      Type(psb_dspmat_type),Intent(in)    :: a
      Type(psb_dspmat_type),Intent(inout) :: blk
      Type(psb_desc_type),Intent(in),target :: desc_a
      integer, intent(out)                :: info
      logical, optional, intent(in)       :: rwcnv,clcnv,cliprow
      character(len=5), optional          :: outfmt 
      integer, intent(in), optional       :: data
    end Subroutine psb_dsphalo
    Subroutine psb_zsphalo(a,desc_a,blk,info,rwcnv,clcnv,cliprow,outfmt,data)
      use psb_descriptor_type
      use psb_spmat_type
      Type(psb_zspmat_type),Intent(in)    :: a
      Type(psb_zspmat_type),Intent(inout) :: blk
      Type(psb_desc_type),Intent(in)      :: desc_a
      integer, intent(out)                :: info
      logical, optional, intent(in)       :: rwcnv,clcnv,cliprow
      character(len=5), optional          :: outfmt 
      integer, intent(in), optional       :: data
    end Subroutine psb_zsphalo
  end interface


  interface psb_csrp
    subroutine psb_dcsrp(trans,iperm,a, desc_a, info)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_dspmat_type), intent(inout)  ::  a
      type(psb_desc_type), intent(in)       ::  desc_a
      integer, intent(inout)                :: iperm(:), info
      character, intent(in)                 :: trans
    end subroutine psb_dcsrp
  end interface


  interface psb_cdprt
    subroutine psb_cdprt(iout,desc_p,glob,short)
      use psb_const_mod
      use psb_descriptor_type
      implicit none 
      type(psb_desc_type), intent(in)    :: desc_p
      integer, intent(in)                :: iout
      logical, intent(in), optional      :: glob,short
    end subroutine psb_cdprt
  end interface


  interface psb_gefree
    ! 2-D double precision version
    subroutine psb_dfree(x, desc_a, info)
      use psb_descriptor_type
      real(kind(1.d0)),allocatable, intent(inout)        :: x(:,:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
    end subroutine psb_dfree
    ! 1-D double precision version
    subroutine psb_dfreev(x, desc_a, info)
      use psb_descriptor_type
      real(kind(1.d0)),allocatable, intent(inout)        :: x(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
    end subroutine psb_dfreev
    ! 2-D integer version
    subroutine psb_ifree(x, desc_a, info)
      use psb_descriptor_type
      integer,allocatable, intent(inout)                 :: x(:,:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
    end subroutine psb_ifree
    ! 1-D integer version
    subroutine psb_ifreev(x, desc_a, info)
      use psb_descriptor_type
      integer, allocatable, intent(inout)                :: x(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
    end subroutine psb_ifreev
    ! 2-D double precision version
    subroutine psb_zfree(x, desc_a, info)
      use psb_descriptor_type
      complex(kind(1.d0)),allocatable, intent(inout)        :: x(:,:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
    end subroutine psb_zfree
    ! 1-D double precision version
    subroutine psb_zfreev(x, desc_a, info)
      use psb_descriptor_type
      complex(kind(1.d0)),allocatable, intent(inout)        :: x(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer                         :: info
    end subroutine psb_zfreev
  end interface


  interface psb_gelp
    ! 2-D version
    subroutine psb_dgelp(trans,iperm,x,desc_a,info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)      ::  desc_a
      real(kind(1.d0)), intent(inout)      ::  x(:,:)
      integer, intent(inout)               ::  iperm(:),info
      character, intent(in)                :: trans
    end subroutine psb_dgelp
    ! 1-D version
    subroutine psb_dgelpv(trans,iperm,x,desc_a,info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      real(kind(1.d0)), intent(inout)    ::  x(:)
      integer, intent(inout)             ::  iperm(:), info
      character, intent(in)              :: trans
    end subroutine psb_dgelpv
    ! 2-D version
    subroutine psb_zgelp(trans,iperm,x,desc_a,info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)      ::  desc_a
      complex(kind(1.d0)), intent(inout)      ::  x(:,:)
      integer, intent(inout)               ::  iperm(:),info
      character, intent(in)                :: trans
    end subroutine psb_zgelp
    ! 1-D version
    subroutine psb_zgelpv(trans,iperm,x,desc_a,info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in) ::  desc_a
      complex(kind(1.d0)), intent(inout)    ::  x(:)
      integer, intent(inout)             ::  iperm(:), info
      character, intent(in)              :: trans
    end subroutine psb_zgelpv
  end interface


  interface psb_geins
    ! 2-D double precision version
    subroutine psb_dinsi(m,irw,val, x,desc_a,info,dupl)
      use psb_descriptor_type
      integer, intent(in)                ::  m
      type(psb_desc_type), intent(in)    ::  desc_a
      real(kind(1.d0)),intent(inout)           ::  x(:,:)
      integer, intent(in)                ::  irw(:)
      real(kind(1.d0)), intent(in)       ::  val(:,:)
      integer, intent(out)               ::  info
      integer, optional, intent(in)      ::  dupl
    end subroutine psb_dinsi
    ! 1-D double precision version
    subroutine psb_dinsvi(m,irw,val,x,desc_a,info,dupl)
      use psb_descriptor_type
      integer, intent(in)                ::  m
      type(psb_desc_type), intent(in)    ::  desc_a
      real(kind(1.d0)),intent(inout)     ::  x(:)
      integer, intent(in)                ::  irw(:)
      real(kind(1.d0)), intent(in)       ::  val(:)
      integer, intent(out)               ::  info
      integer, optional, intent(in)      ::  dupl
    end subroutine psb_dinsvi
    ! 2-D double precision version
    subroutine psb_iinsi(m,irw,val, x,desc_a,info,dupl)
      use psb_descriptor_type
      integer, intent(in)              ::  m
      type(psb_desc_type), intent(in)  ::  desc_a
      integer,intent(inout)                  ::  x(:,:)
      integer, intent(in)              ::  irw(:)
      integer, intent(in)              ::  val(:,:)
      integer, intent(out)             ::  info
      integer, optional, intent(in)    ::  dupl
    end subroutine psb_iinsi
    ! 1-D double precision version
    subroutine psb_iinsvi(m, irw,val, x,desc_a,info,dupl)
      use psb_descriptor_type
      integer, intent(in)             ::  m
      type(psb_desc_type), intent(in) ::  desc_a
      integer,intent(inout)                 ::  x(:)
      integer, intent(in)             ::  irw(:)
      integer, intent(in)             ::  val(:)
      integer, intent(out)            ::  info
      integer, optional, intent(in)   ::  dupl
    end subroutine psb_iinsvi
    ! 2-D double precision version
    subroutine psb_zinsi(m,irw,val, x, desc_a,info,dupl)
      use psb_descriptor_type
      integer, intent(in)              ::  m
      type(psb_desc_type), intent(in)  ::  desc_a
      complex(kind(1.d0)),intent(inout)      ::  x(:,:)
      integer, intent(in)              ::  irw(:)
      complex(kind(1.d0)), intent(in)  ::  val(:,:)
      integer, intent(out)             ::  info
      integer, optional, intent(in)    ::  dupl
    end subroutine psb_zinsi
    ! 1-D double precision version
    subroutine psb_zinsvi(m, irw,val, x,desc_a,info,dupl)
      use psb_descriptor_type
      integer, intent(in)              ::  m
      type(psb_desc_type), intent(in)  ::  desc_a
      complex(kind(1.d0)),intent(inout)      ::  x(:)
      integer, intent(in)              ::  irw(:)
      complex(kind(1.d0)), intent(in)  ::  val(:)
      integer, intent(out)             ::  info
      integer, optional, intent(in)    ::  dupl
    end subroutine psb_zinsvi
  end interface


  interface psb_cdall
    module procedure psb_cdall
  end interface

  interface psb_cdrep
    subroutine psb_cdrep(m, ictxt, desc_a,info)
      use psb_descriptor_type
      Integer, intent(in)               :: m,ictxt
      Type(psb_desc_type), intent(out)  :: desc_a
      integer, intent(out)              :: info
    end subroutine psb_cdrep
  end interface

  interface psb_cdasb
    module procedure psb_cdasb
  end interface

  interface psb_cdcpy
    subroutine psb_cdcpy(desc_in, desc_out, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)  :: desc_in
      type(psb_desc_type), intent(out) :: desc_out
      integer, intent(out)             :: info
    end subroutine psb_cdcpy
  end interface

  interface psb_cdtransfer
    subroutine psb_cdtransfer(desc_in, desc_out, info)
      use psb_descriptor_type
      type(psb_desc_type), intent(inout) :: desc_in
      type(psb_desc_type), intent(inout)   :: desc_out
      integer, intent(out)               :: info
    end subroutine psb_cdtransfer
  end interface


  interface psb_cdfree
    subroutine psb_cdfree(desc_a,info)
      use psb_descriptor_type
      type(psb_desc_type), intent(inout) :: desc_a
      integer, intent(out)               :: info
    end subroutine psb_cdfree
  end interface

  interface psb_cdins
    subroutine psb_cdins(nz,ia,ja,desc_a,info,ila,jla)
      use psb_descriptor_type
      type(psb_desc_type), intent(inout) :: desc_a
      integer, intent(in)                :: nz,ia(:),ja(:)
      integer, intent(out)               :: info
      integer, optional, intent(out)     :: ila(:), jla(:)
    end subroutine psb_cdins
  end interface


  interface psb_cdbldext
    Subroutine psb_dcdovr(a,desc_a,novr,desc_ov,info,extype)
      use psb_descriptor_type
      Use psb_spmat_type
      integer, intent(in)                :: novr
      Type(psb_dspmat_type), Intent(in)  ::  a
      Type(psb_desc_type), Intent(in)    :: desc_a
      Type(psb_desc_type), Intent(inout) :: desc_ov
      integer, intent(out)               :: info
      integer, intent(in),optional       :: extype
    end Subroutine psb_dcdovr
    Subroutine psb_zcdovr(a,desc_a,novr,desc_ov,info,extype)
      use psb_descriptor_type
      Use psb_spmat_type
      integer, intent(in)                :: novr
      Type(psb_zspmat_type), Intent(in)  ::  a
      Type(psb_desc_type), Intent(in)    :: desc_a
      Type(psb_desc_type), Intent(inout) :: desc_ov
      integer, intent(out)               :: info
      integer, intent(in),optional       :: extype
    end Subroutine psb_zcdovr
  end interface

  interface psb_cdren
    subroutine psb_cdren(trans,iperm,desc_a,info)
      use psb_descriptor_type
      type(psb_desc_type), intent(inout)    ::  desc_a
      integer, intent(inout)                ::  iperm(:)
      character, intent(in)                 :: trans
      integer, intent(out)                  :: info
    end subroutine psb_cdren
  end interface

  interface psb_spall
    subroutine psb_dspalloc(a, desc_a, info, nnz)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(inout) :: desc_a
      type(psb_dspmat_type), intent(out) :: a
      integer, intent(out)               :: info
      integer, optional, intent(in)      :: nnz
    end subroutine psb_dspalloc
    subroutine psb_zspalloc(a, desc_a, info, nnz)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(inout) :: desc_a
      type(psb_zspmat_type), intent(out) :: a
      integer, intent(out)               :: info
      integer, optional, intent(in)      :: nnz
    end subroutine psb_zspalloc
  end interface

  interface psb_spasb
    subroutine psb_dspasb(a,desc_a, info, afmt, upd, dupl)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_dspmat_type), intent (inout)   :: a
      type(psb_desc_type), intent(in)         :: desc_a
      integer, intent(out)                    :: info
      integer,optional, intent(in)            :: dupl, upd
      character(len=*), optional, intent(in)  :: afmt
    end subroutine psb_dspasb
    subroutine psb_zspasb(a,desc_a, info, afmt, upd, dupl)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_zspmat_type), intent (inout)   :: a
      type(psb_desc_type), intent(in)         :: desc_a
      integer, intent(out)                    :: info
      integer,optional, intent(in)            :: dupl, upd
      character(len=*), optional, intent(in)  :: afmt
    end subroutine psb_zspasb
  end interface

  interface psb_spfree
    module procedure psb_dsp_free, psb_zsp_free
    subroutine psb_dspfree(a, desc_a,info)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(in) :: desc_a
      type(psb_dspmat_type), intent(inout)       ::a
      integer, intent(out)        :: info
    end subroutine psb_dspfree
    subroutine psb_zspfree(a, desc_a,info)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(in) :: desc_a
      type(psb_zspmat_type), intent(inout)       ::a
      integer, intent(out)        :: info
    end subroutine psb_zspfree
  end interface


  interface psb_spins
    subroutine psb_dspins(nz,ia,ja,val,a,desc_a,info,rebuild)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(inout)   :: desc_a
      type(psb_dspmat_type), intent(inout) :: a
      integer, intent(in)                  :: nz,ia(:),ja(:)
      real(kind(1.d0)), intent(in)         :: val(:)
      integer, intent(out)                 :: info
      logical, intent(in), optional        :: rebuild
    end subroutine psb_dspins
    subroutine psb_zspins(nz,ia,ja,val,a,desc_a,info,rebuild)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(inout)   :: desc_a
      type(psb_zspmat_type), intent(inout) :: a
      integer, intent(in)                  :: nz,ia(:),ja(:)
      complex(kind(1.d0)), intent(in)      :: val(:)
      integer, intent(out)                 :: info
      logical, intent(in), optional        :: rebuild
    end subroutine psb_zspins
  end interface


  interface psb_sprn
    subroutine psb_dsprn(a, desc_a,info,clear)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(in)      :: desc_a
      type(psb_dspmat_type), intent(inout) :: a
      integer, intent(out)                 :: info
      logical, intent(in), optional        :: clear
    end subroutine psb_dsprn
    subroutine psb_zsprn(a, desc_a,info,clear)
      use psb_descriptor_type
      use psb_spmat_type
      type(psb_desc_type), intent(in)      :: desc_a
      type(psb_zspmat_type), intent(inout) :: a
      integer, intent(out)                 :: info
      logical, intent(in), optional        :: clear
    end subroutine psb_zsprn
  end interface


  interface psb_glob_to_loc
    subroutine psb_glob_to_loc2(x,y,desc_a,info,iact,owned)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)    ::  desc_a
      integer,intent(in)                 ::  x(:)  
      integer,intent(out)                ::  y(:)  
      integer, intent(out)               ::  info
      logical, intent(in),  optional     :: owned
      character, intent(in), optional    ::  iact
    end subroutine psb_glob_to_loc2
    subroutine psb_glob_to_loc(x,desc_a,info,iact,owned)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)    ::  desc_a
      integer,intent(inout)              ::  x(:)  
      integer, intent(out)               ::  info
      logical, intent(in),  optional     :: owned
      character, intent(in), optional    ::  iact
    end subroutine psb_glob_to_loc
  end interface

  interface psb_loc_to_glob
    subroutine psb_loc_to_glob2(x,y,desc_a,info,iact)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)    ::  desc_a
      integer,intent(in)                 ::  x(:)  
      integer,intent(out)                ::  y(:)  
      integer, intent(out)               ::  info
      character, intent(in), optional    ::  iact
    end subroutine psb_loc_to_glob2
    subroutine psb_loc_to_glob(x,desc_a,info,iact)
      use psb_descriptor_type
      type(psb_desc_type), intent(in)    ::  desc_a
      integer,intent(inout)              ::  x(:)  
      integer, intent(out)               ::  info
      character, intent(in), optional    ::  iact
    end subroutine psb_loc_to_glob
  end interface


  interface psb_get_boundary
    module procedure psb_get_boundary
  end interface

  interface psb_get_overlap
    subroutine psb_get_ovrlap(ovrel,desc,info)
      use psb_descriptor_type
      implicit none 
      integer, allocatable, intent(out) :: ovrel(:)
      type(psb_desc_type), intent(in) :: desc
      integer, intent(out)            :: info
    end subroutine psb_get_ovrlap
  end interface



contains

  subroutine psb_get_boundary(bndel,desc,info)
    use psb_descriptor_type
    use psi_mod
    implicit none 
    integer, allocatable, intent(out) :: bndel(:)
    type(psb_desc_type), intent(in) :: desc
    integer, intent(out)            :: info

    call psi_crea_bnd_elem(bndel,desc,info)

  end subroutine psb_get_boundary

  subroutine psb_cdall(ictxt, desc_a, info,mg,ng,parts,vg,vl,flag,nl)
    use psb_descriptor_type
    use psb_serial_mod
    use psb_const_mod
    use psb_error_mod
    use psb_penv_mod
    implicit None
    include 'parts.fh'
    Integer, intent(in)               :: mg,ng,ictxt, vg(:), vl(:),nl
    integer, intent(in)               :: flag
    integer, intent(out)              :: info
    type(psb_desc_type), intent(out)  :: desc_a

    optional :: mg,ng,parts,vg,vl,flag,nl

    interface 
      subroutine psb_cdals(m, n, parts, ictxt, desc_a, info)
        use psb_descriptor_type
        include 'parts.fh'
        Integer, intent(in)                 :: m,n,ictxt
        Type(psb_desc_type), intent(out)    :: desc_a
        integer, intent(out)                :: info
      end subroutine psb_cdals
      subroutine psb_cdalv(v, ictxt, desc_a, info, flag)
        use psb_descriptor_type
        Integer, intent(in)               :: ictxt, v(:)
        integer, intent(in), optional     :: flag
        integer, intent(out)              :: info
        Type(psb_desc_type), intent(out)  :: desc_a
      end subroutine psb_cdalv
      subroutine psb_cd_inloc(v, ictxt, desc_a, info)
        use psb_descriptor_type
        implicit None
        Integer, intent(in)               :: ictxt, v(:)
        integer, intent(out)              :: info
        type(psb_desc_type), intent(out)  :: desc_a
      end subroutine psb_cd_inloc
    end interface
    character(len=20)   :: name, char_err
    integer :: err_act, n_, flag_, i, me, np, nlp
    integer, allocatable :: itmpsz(:) 



    if(psb_get_errstatus() /= 0) return 
    info=0
    name = 'psb_cdall'
    call psb_erractionsave(err_act)

    call psb_info(ictxt, me, np)

    if (count((/ present(vg),present(vl),present(parts),present(nl) /)) /= 1) then 
      info=581
      call psb_errpush(info,name,a_err=" vg, vl, parts, nl")
      goto 999 
    endif

    if (present(parts)) then 
      if (.not.present(mg)) then 
        info=581
        call psb_errpush(info,name)
        goto 999 
      end if
      if (present(ng)) then 
        n_ = ng
      else
        n_ = mg 
      endif
      call  psb_cdals(mg, n_, parts, ictxt, desc_a, info)

    else if (present(vg)) then 
      if (present(flag)) then 
        flag_=flag
      else
        flag_=0
      endif
      call psb_cdalv(vg, ictxt, desc_a, info, flag=flag_)

    else if (present(vl)) then 
      call psb_cd_inloc(vl,ictxt,desc_a,info)

    else if (present(nl)) then 
      allocate(itmpsz(0:np-1),stat=info)
      if (info /= 0) then 
        info = 4000 
        call psb_errpush(info,name)
        goto 999
      endif

      itmpsz = 0
      itmpsz(me) = nl
      call psb_sum(ictxt,itmpsz)
      nlp=0 
      do i=0, me-1
        nlp = nlp + itmpsz(i)
      end do
      call psb_cd_inloc((/(i,i=nlp+1,nlp+nl)/),ictxt,desc_a,info)

    endif
    call psb_erractionrestore(err_act)
    return

999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error(ictxt)
      return
    end if
    return


  end subroutine psb_cdall

  subroutine psb_cdasb(desc_a,info)
    use psb_descriptor_type
    interface 
      subroutine psb_icdasb(desc_a,info,ext_hv)
        use psb_descriptor_type
        Type(psb_desc_type), intent(inout) :: desc_a
        integer, intent(out)               :: info
        logical, intent(in),optional       :: ext_hv
      end subroutine psb_icdasb
    end interface

    Type(psb_desc_type), intent(inout) :: desc_a
    integer, intent(out)               :: info

    call psb_icdasb(desc_a,info,ext_hv=.false.)
  end subroutine psb_cdasb


end module psb_tools_mod