!!$ 
!!$              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
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!!$       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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!!$ 
!!$  
module psi_s_mod
  use psb_desc_mod, only : psb_desc_type, psb_ipk_, psb_spk_, psb_i_base_vect_type
  use psb_s_vect_mod, only : psb_s_base_vect_type 

  interface psi_swapdata
    subroutine psi_sswapdatam(flag,n,beta,y,desc_a,work,info,data)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)         :: flag, n
      integer(psb_ipk_), intent(out)        :: info
      real(psb_spk_)              :: y(:,:), beta
      real(psb_spk_),target       :: work(:)
      type(psb_desc_type), target :: desc_a
      integer(psb_ipk_), optional           :: data
    end subroutine psi_sswapdatam
    subroutine psi_sswapdatav(flag,beta,y,desc_a,work,info,data)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)         :: flag
      integer(psb_ipk_), intent(out)        :: info
      real(psb_spk_)              :: y(:), beta 
      real(psb_spk_),target       :: work(:)
      type(psb_desc_type), target :: desc_a
      integer(psb_ipk_), optional           :: data
    end subroutine psi_sswapdatav
    subroutine psi_sswapdata_vect(flag,beta,y,desc_a,work,info,data)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)         :: flag
      integer(psb_ipk_), intent(out)        :: info
      class(psb_s_base_vect_type) :: y
      real(psb_spk_)              :: beta 
      real(psb_spk_),target       :: work(:)
      type(psb_desc_type), target :: desc_a
      integer(psb_ipk_), optional           :: data
    end subroutine psi_sswapdata_vect
    subroutine psi_sswapidxm(ictxt,icomm,flag,n,beta,y,idx,&
         & totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)   :: ictxt,icomm,flag, n
      integer(psb_ipk_), intent(out)  :: info
      real(psb_spk_)        :: y(:,:), beta
      real(psb_spk_),target :: work(:)
      integer(psb_ipk_), intent(in)   :: idx(:),totxch,totsnd,totrcv
    end subroutine psi_sswapidxm
    subroutine psi_sswapidxv(ictxt,icomm,flag,beta,y,idx,&
         & totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)   :: ictxt,icomm,flag
      integer(psb_ipk_), intent(out)  :: info
      real(psb_spk_)        :: y(:), beta
      real(psb_spk_),target :: work(:)
      integer(psb_ipk_), intent(in)   :: idx(:),totxch,totsnd,totrcv
    end subroutine psi_sswapidxv
    subroutine psi_sswapidx_vect(ictxt,icomm,flag,beta,y,idx,&
         & totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)   :: ictxt,icomm,flag
      integer(psb_ipk_), intent(out)  :: info
      class(psb_s_base_vect_type) :: y
      real(psb_spk_)        :: beta
      real(psb_spk_),target :: work(:)
      integer(psb_ipk_), intent(in)   :: idx(:),totxch,totsnd,totrcv
    end subroutine psi_sswapidx_vect
    subroutine psi_sswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx,totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type, psb_i_base_vect_type
      integer(psb_ipk_), intent(in)           :: iictxt,iicomm,flag
      integer(psb_ipk_), intent(out)          :: info
      class(psb_s_base_vect_type)             :: y
      real(psb_spk_)                          :: beta
      real(psb_spk_), target                  :: work(:)
      class(psb_i_base_vect_type), intent(in) :: idx
      integer(psb_ipk_), intent(in)           :: totxch,totsnd, totrcv
    end subroutine psi_sswap_vidx_vect
  end interface


  interface psi_swaptran
    subroutine psi_sswaptranm(flag,n,beta,y,desc_a,work,info,data)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)         :: flag, n
      integer(psb_ipk_), intent(out)        :: info
      real(psb_spk_)              :: y(:,:), beta
      real(psb_spk_),target       :: work(:)
      type(psb_desc_type), target :: desc_a
      integer(psb_ipk_), optional           :: data
    end subroutine psi_sswaptranm
    subroutine psi_sswaptranv(flag,beta,y,desc_a,work,info,data)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)         :: flag
      integer(psb_ipk_), intent(out)        :: info
      real(psb_spk_)              :: y(:), beta
      real(psb_spk_),target       :: work(:)
      type(psb_desc_type), target :: desc_a
      integer(psb_ipk_), optional           :: data
    end subroutine psi_sswaptranv
    subroutine psi_sswaptran_vect(flag,beta,y,desc_a,work,info,data)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)         :: flag
      integer(psb_ipk_), intent(out)        :: info
      class(psb_s_base_vect_type) :: y
      real(psb_spk_)              :: beta
      real(psb_spk_),target       :: work(:)
      type(psb_desc_type), target :: desc_a
      integer(psb_ipk_), optional           :: data
    end subroutine psi_sswaptran_vect
    subroutine psi_stranidxm(ictxt,icomm,flag,n,beta,y,idx,&
         & totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)   :: ictxt,icomm,flag, n
      integer(psb_ipk_), intent(out)  :: info
      real(psb_spk_)        :: y(:,:), beta
      real(psb_spk_),target :: work(:)
      integer(psb_ipk_), intent(in)   :: idx(:),totxch,totsnd,totrcv
    end subroutine psi_stranidxm
    subroutine psi_stranidxv(ictxt,icomm,flag,beta,y,idx,&
         & totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)   :: ictxt,icomm,flag
      integer(psb_ipk_), intent(out)  :: info
      real(psb_spk_)        :: y(:), beta
      real(psb_spk_),target :: work(:)
      integer(psb_ipk_), intent(in)   :: idx(:),totxch,totsnd,totrcv
    end subroutine psi_stranidxv
    subroutine psi_stranidx_vect(ictxt,icomm,flag,beta,y,idx,&
         & totxch,totsnd,totrcv,work,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      integer(psb_ipk_), intent(in)   :: ictxt,icomm,flag
      integer(psb_ipk_), intent(out)  :: info
      class(psb_s_base_vect_type) :: y
      real(psb_spk_)        :: beta
      real(psb_spk_),target :: work(:)
      integer(psb_ipk_), intent(in)   :: idx(:),totxch,totsnd,totrcv
    end subroutine psi_stranidx_vect
  end interface

  interface psi_ovrl_upd
    subroutine  psi_sovrl_updr1(x,desc_a,update,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      real(psb_spk_), intent(inout), target :: x(:)
      type(psb_desc_type), intent(in)         :: desc_a
      integer(psb_ipk_), intent(in)                     :: update
      integer(psb_ipk_), intent(out)                    :: info
    end subroutine psi_sovrl_updr1
    subroutine  psi_sovrl_updr2(x,desc_a,update,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      real(psb_spk_), intent(inout), target :: x(:,:)
      type(psb_desc_type), intent(in)         :: desc_a
      integer(psb_ipk_), intent(in)                     :: update
      integer(psb_ipk_), intent(out)                    :: info
    end subroutine psi_sovrl_updr2
    subroutine  psi_sovrl_upd_vect(x,desc_a,update,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      class(psb_s_base_vect_type)       :: x
      type(psb_desc_type), intent(in)   :: desc_a
      integer(psb_ipk_), intent(in)               :: update
      integer(psb_ipk_), intent(out)              :: info
    end subroutine psi_sovrl_upd_vect
  end interface

  interface psi_ovrl_save
    subroutine  psi_sovrl_saver1(x,xs,desc_a,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      real(psb_spk_), intent(inout)  :: x(:)
      real(psb_spk_), allocatable    :: xs(:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
    end subroutine psi_sovrl_saver1
    subroutine  psi_sovrl_saver2(x,xs,desc_a,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      real(psb_spk_), intent(inout)  :: x(:,:)
      real(psb_spk_), allocatable    :: xs(:,:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
    end subroutine psi_sovrl_saver2
    subroutine  psi_sovrl_save_vect(x,xs,desc_a,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      class(psb_s_base_vect_type)     :: x
      real(psb_spk_), allocatable     :: xs(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer(psb_ipk_), intent(out)            :: info
    end subroutine psi_sovrl_save_vect
  end interface

  interface psi_ovrl_restore
    subroutine  psi_sovrl_restrr1(x,xs,desc_a,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      real(psb_spk_), intent(inout)  :: x(:)
      real(psb_spk_)                 :: xs(:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
    end subroutine psi_sovrl_restrr1
    subroutine  psi_sovrl_restrr2(x,xs,desc_a,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      real(psb_spk_), intent(inout)  :: x(:,:)
      real(psb_spk_)                 :: xs(:,:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
    end subroutine psi_sovrl_restrr2
    subroutine  psi_sovrl_restr_vect(x,xs,desc_a,info)
      import :: psb_desc_type, psb_ipk_, psb_spk_, psb_s_base_vect_type
      class(psb_s_base_vect_type)     :: x
      real(psb_spk_)                  :: xs(:)
      type(psb_desc_type), intent(in) :: desc_a
      integer(psb_ipk_), intent(out)            :: info
    end subroutine psi_sovrl_restr_vect
  end interface

end module psi_s_mod