!!$ 
!!$              Parallel Sparse BLAS  version 2.2
!!$    (C) Copyright 2006/2007/2008
!!$                       Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        University of Rome Tor Vergata
!!$ 
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!!$       documentation and/or other materials provided with the distribution.
!!$    3. The name of the PSBLAS group or the names of its contributors may
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!!$  
!
!
! package: psb_linmap_type_mod
!    Defines data types for mapping between vectors belonging
!    to different spaces.
!
module psb_linmap_type_mod
  use psb_const_mod
  use psb_mat_mod, only: psb_d_sparse_mat, psb_s_sparse_mat, psb_z_sparse_mat, psb_c_sparse_mat
  use psb_descriptor_type, only: psb_desc_type
  

  ! Inter-descriptor mapping data structures. 
  integer, parameter :: psb_map_kind_     = 1
  integer, parameter :: psb_map_data_     = 2
  integer, parameter :: psb_map_integer_  = 1
  integer, parameter :: psb_map_single_   = 2
  integer, parameter :: psb_map_double_   = 3 
  integer, parameter :: psb_map_complex_  = 4
  integer, parameter :: psb_map_double_complex_ = 5 
 
  integer, parameter :: psb_itd_data_size_=20


  type psb_slinmap_type 
    integer, allocatable   :: itd_data(:), iaggr(:), naggr(:)
    type(psb_desc_type), pointer :: p_desc_X=>null(), p_desc_Y=>null()
    type(psb_desc_type)    :: desc_X, desc_Y
    type(psb_s_sparse_mat) :: map_X2Y, map_Y2X
  end type psb_slinmap_type

  type psb_dlinmap_type 
    integer, allocatable   :: itd_data(:), iaggr(:), naggr(:)
    type(psb_desc_type), pointer :: p_desc_X=>null(), p_desc_Y=>null()
    type(psb_desc_type)    :: desc_X, desc_Y
    type(psb_d_sparse_mat) :: map_X2Y, map_Y2X
  end type psb_dlinmap_type

  type psb_clinmap_type 
    integer, allocatable  :: itd_data(:), iaggr(:), naggr(:)
    type(psb_desc_type), pointer :: p_desc_X=>null(), p_desc_Y=>null()
    type(psb_desc_type)   :: desc_X, desc_Y
    type(psb_c_sparse_mat) :: map_X2Y, map_Y2X
  end type psb_clinmap_type
  
  type psb_zlinmap_type 
    integer, allocatable  :: itd_data(:), iaggr(:), naggr(:)
    type(psb_desc_type), pointer :: p_desc_X=>null(), p_desc_Y=>null()
    type(psb_desc_type)   :: desc_X, desc_Y
    type(psb_z_sparse_mat) :: map_X2Y, map_Y2X
  end type psb_zlinmap_type

end module psb_linmap_type_mod

