!   
!                Parallel Sparse BLAS  version 3.5
!      (C) Copyright 2006-2018
!        Salvatore Filippone    
!        Alfredo Buttari      
!   
!    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.
!   
!    
module psb_i2_comm_a_mod
  use psb_desc_mod, only : psb_desc_type, psb_ipk_, psb_lpk_, &
       & psb_epk_, psb_mpk_, psb_i2pk_
  
  interface psb_ovrl
    subroutine psb_i2ovrlm(x,desc_a,info,jx,ik,work,update,mode)
      import
      implicit none
      integer(psb_i2pk_), intent(inout), target   :: x(:,:)
      type(psb_desc_type), intent(in)            :: desc_a
      integer(psb_ipk_), intent(out)             :: info
      integer(psb_i2pk_), intent(inout), optional, target :: work(:)
      integer(psb_ipk_), intent(in), optional              :: update,jx,ik,mode
    end subroutine psb_i2ovrlm
    subroutine psb_i2ovrlv(x,desc_a,info,work,update,mode)
      import
      implicit none
      integer(psb_i2pk_), intent(inout), target   :: x(:)
      type(psb_desc_type), intent(in)            :: desc_a
      integer(psb_ipk_), intent(out)             :: info
      integer(psb_i2pk_), intent(inout), optional, target :: work(:)
      integer(psb_ipk_), intent(in), optional              :: update,mode
    end subroutine psb_i2ovrlv
  end interface psb_ovrl

  interface psb_halo
    subroutine psb_i2halom(x,desc_a,info,jx,ik,work,tran,mode,data)
      import
      implicit none
      integer(psb_i2pk_), intent(inout), target :: x(:,:)
      type(psb_desc_type), intent(in)          :: desc_a
      integer(psb_ipk_), intent(out)                     :: info
      integer(psb_i2pk_), target, optional, intent(inout) :: work(:)
      integer(psb_ipk_), intent(in), optional           :: mode,jx,ik,data
      character, intent(in), optional         :: tran
    end subroutine psb_i2halom
    subroutine psb_i2halov(x,desc_a,info,work,tran,mode,data)
      import
      implicit none
      integer(psb_i2pk_), intent(inout)        :: x(:)
      type(psb_desc_type), intent(in)       :: desc_a
      integer(psb_ipk_), intent(out)        :: info
      integer(psb_i2pk_), target, optional, intent(inout) :: work(:)
      integer(psb_ipk_), intent(in), optional           :: mode,data
      character, intent(in), optional         :: tran
    end subroutine psb_i2halov
  end interface psb_halo


  interface psb_scatter
    subroutine  psb_i2scatterm(globx, locx, desc_a, info, root)
      import
      implicit none
      integer(psb_i2pk_), intent(out), allocatable :: locx(:,:)
      integer(psb_i2pk_), intent(in)  :: globx(:,:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
      integer(psb_ipk_), intent(in), optional    :: root
    end subroutine psb_i2scatterm
    subroutine  psb_i2scatterv(globx, locx, desc_a, info, root)
      import
      implicit none
      integer(psb_i2pk_), intent(out), allocatable :: locx(:)
      integer(psb_i2pk_), intent(in)  :: globx(:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
      integer(psb_ipk_), intent(in), optional    :: root
    end subroutine psb_i2scatterv
  end interface psb_scatter

  interface psb_gather
    subroutine psb_i2gatherm(globx, locx, desc_a, info, root)
      import
      implicit none
      integer(psb_i2pk_), intent(in)  :: locx(:,:)
      integer(psb_i2pk_), intent(out), allocatable  :: globx(:,:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
      integer(psb_ipk_), intent(in), optional    :: root
    end subroutine psb_i2gatherm
    subroutine psb_i2gatherv(globx, locx, desc_a, info, root)
      import
      implicit none
      integer(psb_i2pk_), intent(in)  :: locx(:)
      integer(psb_i2pk_), intent(out), allocatable  :: globx(:)
      type(psb_desc_type), intent(in)  :: desc_a
      integer(psb_ipk_), intent(out)             :: info
      integer(psb_ipk_), intent(in), optional    :: root
    end subroutine psb_i2gatherv
  end interface psb_gather

end module psb_i2_comm_a_mod