!!$ 
!!$              Parallel Sparse BLAS  version 3.0
!!$    (C) Copyright 2006, 2007, 2008, 2009, 2010
!!$                       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
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!!$  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$  POSSIBILITY OF SUCH DAMAGE.
!!$ 
!!$  
module psb_d_psblas_mod

  interface psb_gedot
    function psb_ddotv(x, y, desc_a,info) 
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_)                   :: psb_ddotv
      real(psb_dpk_), intent(in)       :: x(:), y(:)
      type(psb_desc_type), intent(in)    :: desc_a
      integer, intent(out)               :: info
    end function psb_ddotv
    function psb_ddot(x, y, desc_a, info, jx, jy) 
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_)                   :: psb_ddot
      real(psb_dpk_), intent(in)       :: x(:,:), y(:,:)
      type(psb_desc_type), intent(in)    :: desc_a
      integer, optional, intent(in)      :: jx, jy
      integer, intent(out)               :: info
    end function psb_ddot
  end interface


  interface psb_gedots
    subroutine  psb_ddotvs(res,x, y, desc_a, info) 
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent(out)      :: res
      real(psb_dpk_), intent(in)       :: x(:), y(:)
      type(psb_desc_type), intent(in)    :: desc_a
      integer, intent(out)               :: info
    end subroutine psb_ddotvs
    subroutine  psb_dmdots(res,x, y, desc_a,info) 
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent(out)      :: res(:)
      real(psb_dpk_), intent(in)       :: x(:,:), y(:,:)
      type(psb_desc_type), intent(in)    :: desc_a
      integer, intent(out)               :: info
    end subroutine psb_dmdots
  end interface

  interface psb_geaxpby
    subroutine psb_daxpbyv(alpha, x, beta, y,&
         & desc_a, info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (in)       ::  x(:)
      real(psb_dpk_), intent (inout)    ::  y(:)
      real(psb_dpk_), intent (in)       :: alpha, beta
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end subroutine psb_daxpbyv
    subroutine psb_daxpby(alpha, x, beta, y,&
         & desc_a, info, n, jx, jy)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (in)       ::  x(:,:)
      real(psb_dpk_), intent (inout)    ::  y(:,:)
      real(psb_dpk_), intent (in)       ::  alpha, beta
      type(psb_desc_type), intent (in)    :: desc_a
      integer, optional, intent(in)     :: n, jx, jy
      integer, intent(out)                :: info
    end subroutine psb_daxpby
  end interface

  interface psb_geamax
    function psb_damax(x, desc_a, info, jx)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_)   psb_damax
      real(psb_dpk_), intent (in)       :: x(:,:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, optional, intent (in)      :: jx
      integer, intent(out)                :: info
    end function psb_damax
    function psb_damaxv(x, desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_) psb_damaxv
      real(psb_dpk_), intent (in)       :: x(:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end function psb_damaxv
  end interface

  interface psb_geamaxs
    subroutine  psb_damaxvs(res,x,desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (out)      :: res
      real(psb_dpk_), intent (in)       :: x(:)
      type(psb_desc_type), intent (in) :: desc_a
      integer, intent(out)               :: info
    end subroutine psb_damaxvs
    subroutine  psb_dmamaxs(res,x,desc_a,info,jx)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (out)      :: res(:)
      real(psb_dpk_), intent (in)       :: x(:,:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
      integer, optional, intent(in)       :: jx
    end subroutine psb_dmamaxs
  end interface

  interface psb_geasum
    function psb_dasum(x, desc_a, info, jx)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_)   psb_dasum
      real(psb_dpk_), intent (in)       :: x(:,:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, optional, intent (in)      :: jx
      integer, intent(out)                :: info
    end function psb_dasum
    function psb_dasumv(x, desc_a, info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_) psb_dasumv
      real(psb_dpk_), intent (in)       :: x(:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end function psb_dasumv
  end interface

  interface psb_geasums
    subroutine  psb_dasumvs(res,x,desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (out)      :: res
      real(psb_dpk_), intent (in)       :: x(:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end subroutine psb_dasumvs
    subroutine  psb_dmasum(res,x,desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (out)      :: res(:)
      real(psb_dpk_), intent (in)       :: x(:,:)
      type(psb_desc_type), intent (in)  :: desc_a
      integer, intent(out)              :: info
    end subroutine psb_dmasum
  end interface


  interface psb_genrm2
    function psb_dnrm2(x, desc_a, info, jx)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_)   psb_dnrm2
      real(psb_dpk_), intent (in)       :: x(:,:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, optional, intent (in)      :: jx
      integer, intent(out)                :: info
    end function psb_dnrm2
    function psb_dnrm2v(x, desc_a, info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_) psb_dnrm2v
      real(psb_dpk_), intent (in)       :: x(:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end function psb_dnrm2v
  end interface

  interface psb_genrm2s
    subroutine  psb_dnrm2vs(res,x,desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      real(psb_dpk_), intent (out)      :: res
      real(psb_dpk_), intent (in)       :: x(:)
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end subroutine psb_dnrm2vs
  end interface


  interface psb_spnrmi
    function psb_dnrmi(a, desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      use psb_mat_mod, only : psb_d_sparse_mat
      real(psb_dpk_)                      :: psb_dnrmi
      type(psb_d_sparse_mat), intent (in) :: a
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end function psb_dnrmi
  end interface

  interface psb_spnrm1
    function psb_dspnrm1(a, desc_a,info)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      use psb_mat_mod, only : psb_d_sparse_mat
      real(psb_dpk_)                      :: psb_dspnrm1
      type(psb_d_sparse_mat), intent (in) :: a
      type(psb_desc_type), intent (in)    :: desc_a
      integer, intent(out)                :: info
    end function psb_dspnrm1
  end interface

  interface psb_spmm
    subroutine psb_dspmm(alpha, a, x, beta, y, desc_a, info,&
         &trans, k, jx, jy,work,doswap)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      use psb_mat_mod, only : psb_d_sparse_mat
      type(psb_d_sparse_mat), intent(in)    :: a
      real(psb_dpk_), intent(inout)        :: x(:,:)
      real(psb_dpk_), intent(inout)        :: y(:,:)
      real(psb_dpk_), intent(in)           :: alpha, beta
      type(psb_desc_type), intent(in)      :: desc_a
      character, optional, intent(in)      :: trans
      real(psb_dpk_), optional, intent(inout),target :: work(:)
      integer, optional, intent(in)        :: k, jx, jy
      logical, optional, intent(in)        :: doswap
      integer, intent(out)                 :: info
    end subroutine psb_dspmm
    subroutine psb_dspmv(alpha, a, x, beta, y,&
         & desc_a, info, trans, work,doswap)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      use psb_mat_mod, only : psb_d_sparse_mat
      type(psb_d_sparse_mat), intent(in)   :: a
      real(psb_dpk_), intent(inout)       :: x(:)
      real(psb_dpk_), intent(inout)       :: y(:)
      real(psb_dpk_), intent(in)          :: alpha, beta
      type(psb_desc_type), intent(in)     :: desc_a
      character, optional, intent(in)     :: trans
      real(psb_dpk_), optional, intent(inout),target :: work(:)
      logical, optional, intent(in)        :: doswap
      integer, intent(out)                 :: info
    end subroutine psb_dspmv
  end interface

  interface psb_spsm
    subroutine psb_dspsm(alpha, t, x, beta, y,&
         & desc_a, info, trans, scale, choice,& 
         & diag, n, jx, jy, work)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_
      use psb_mat_mod, only : psb_d_sparse_mat
      type(psb_d_sparse_mat), intent(in)    :: t
      real(psb_dpk_), intent(in)           :: x(:,:)
      real(psb_dpk_), intent(inout)        :: y(:,:)
      real(psb_dpk_), intent(in)           :: alpha, beta
      type(psb_desc_type), intent(in)      :: desc_a
      character, optional, intent(in)      :: trans, scale
      integer, optional, intent(in)        :: n, jx, jy
      integer, optional, intent(in)        :: choice
      real(psb_dpk_), optional, intent(in), target :: diag(:)
      real(psb_dpk_), optional, intent(inout), target :: work(:)
      integer, intent(out)               :: info
    end subroutine psb_dspsm
    subroutine psb_dspsv(alpha, t, x, beta, y,&
         & desc_a, info, trans, scale, choice,& 
         & diag, work)
      use psb_descriptor_type, only : psb_desc_type, psb_spk_, psb_dpk_ 
      use psb_mat_mod, only : psb_d_sparse_mat
      type(psb_d_sparse_mat), intent(in)    :: t
      real(psb_dpk_), intent(in)             :: x(:)
      real(psb_dpk_), intent(inout)          :: y(:)
      real(psb_dpk_), intent(in)             :: alpha, beta
      type(psb_desc_type), intent(in)        :: desc_a
      character, optional, intent(in)        :: trans, scale
      integer, optional, intent(in)          :: choice
      real(psb_dpk_), optional, intent(in), target :: diag(:)
      real(psb_dpk_), optional, intent(inout), target :: work(:)
      integer, intent(out)                   :: info
    end subroutine psb_dspsv
  end interface

end module psb_d_psblas_mod