psblas3/prec/psb_z_base_prec_mod.f03

!!$ 
!!$              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
!!$  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 to   define PREC_DATA,           !!
!!      structure for preconditioning.          !!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
module psb_z_base_prec_mod

  ! Reduces size of .mod file.
  use psb_sparse_mod, only : psb_dpk_, psb_spk_, psb_long_int_k_,&
       & psb_desc_type, psb_sizeof, psb_free, psb_cdfree,&
       & psb_erractionsave, psb_erractionrestore, psb_error, psb_get_errstatus,&
       & psb_zspmat_type
  
  use psb_prec_const_mod

  type psb_z_base_prec_type
  contains
    procedure, pass(prec) :: apply     => psb_z_base_apply
    procedure, pass(prec) :: precbld   => psb_z_base_precbld
    procedure, pass(prec) :: precseti  => psb_z_base_precseti
    procedure, pass(prec) :: precsetr  => psb_z_base_precsetr
    procedure, pass(prec) :: precsetc  => psb_z_base_precsetc
    procedure, pass(prec) :: sizeof    => psb_z_base_sizeof
    generic, public       :: precset   => precseti, precsetr, precsetc
    procedure, pass(prec) :: precinit  => psb_z_base_precinit
    procedure, pass(prec) :: precfree  => psb_z_base_precfree
    procedure, pass(prec) :: precdescr => psb_z_base_precdescr
  end type psb_z_base_prec_type
  
  private :: psb_z_base_apply, psb_z_base_precbld, psb_z_base_precseti,&
       & psb_z_base_precsetr, psb_z_base_precsetc, psb_z_base_sizeof,&
       & psb_z_base_precinit, psb_z_base_precfree, psb_z_base_precdescr
  

contains
 

  subroutine psb_z_base_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
    use psb_sparse_mod
    type(psb_desc_type),intent(in)       :: desc_data
    class(psb_z_base_prec_type), intent(in)  :: prec
    complex(psb_dpk_),intent(in)         :: alpha, beta
    complex(psb_dpk_),intent(in)         :: x(:)
    complex(psb_dpk_),intent(inout)      :: y(:)
    integer, intent(out)                 :: info
    character(len=1), optional           :: trans
    complex(psb_dpk_),intent(inout), optional, target :: work(:)
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_prec_apply'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return

  end subroutine psb_z_base_apply

  subroutine psb_z_base_precinit(prec,info)
    
    use psb_sparse_mod
    Implicit None
    
    class(psb_z_base_prec_type),intent(inout) :: prec
    integer, intent(out)                     :: info
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_precinit'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
  end subroutine psb_z_base_precinit

  subroutine psb_z_base_precbld(a,desc_a,prec,info,upd)
    
    use psb_sparse_mod
    Implicit None
    
    type(psb_zspmat_type), intent(in), target :: a
    type(psb_desc_type), intent(in), target  :: desc_a
    class(psb_z_base_prec_type),intent(inout) :: prec
    integer, intent(out)                     :: info
    character, intent(in), optional          :: upd
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_precbld'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
  end subroutine psb_z_base_precbld

  subroutine psb_z_base_precseti(prec,what,val,info)
    
    use psb_sparse_mod
    Implicit None
    
    class(psb_z_base_prec_type),intent(inout) :: prec
    integer, intent(in)                      :: what 
    integer, intent(in)                      :: val 
    integer, intent(out)                     :: info
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_precseti'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
  end subroutine psb_z_base_precseti

  subroutine psb_z_base_precsetr(prec,what,val,info)
    
    use psb_sparse_mod
    Implicit None
    
    class(psb_z_base_prec_type),intent(inout) :: prec
    integer, intent(in)                      :: what 
    real(psb_dpk_), intent(in)               :: val 
    integer, intent(out)                     :: info
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_precsetr'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
  end subroutine psb_z_base_precsetr

  subroutine psb_z_base_precsetc(prec,what,val,info)
    
    use psb_sparse_mod
    Implicit None
    
    class(psb_z_base_prec_type),intent(inout) :: prec
    integer, intent(in)                      :: what 
    character(len=*), intent(in)             :: val
    integer, intent(out)                     :: info
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_precsetc'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
  end subroutine psb_z_base_precsetc

  subroutine psb_z_base_precfree(prec,info)
    
    use psb_sparse_mod
    Implicit None

    class(psb_z_base_prec_type), intent(inout) :: prec
    integer, intent(out)                :: info
    
    Integer :: err_act, nrow
    character(len=20)  :: name='z_base_precfree'
    
    call psb_erractionsave(err_act)
    
    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
    
  end subroutine psb_z_base_precfree
  

  subroutine psb_z_base_precdescr(prec,iout)
    
    use psb_sparse_mod
    Implicit None

    class(psb_z_base_prec_type), intent(in) :: prec
    integer, intent(in), optional    :: iout

    Integer :: err_act, nrow, info
    character(len=20)  :: name='z_base_precdescr'

    call psb_erractionsave(err_act)

    !
    ! This is the base version and we should throw an error. 
    ! Or should it be the NULL preonditioner???
    !
    info = 700
    call psb_errpush(info,name)
    goto 9999 
    
    call psb_erractionrestore(err_act)
    return

9999 continue
    call psb_erractionrestore(err_act)
    if (err_act == psb_act_abort_) then
      call psb_error()
      return
    end if
    return
    
  end subroutine psb_z_base_precdescr
  

  function psb_z_base_sizeof(prec) result(val)
    use psb_sparse_mod
    class(psb_z_base_prec_type), intent(in) :: prec
    integer(psb_long_int_k_) :: val
    
    val = 0
    return
  end function psb_z_base_sizeof

end module psb_z_base_prec_mod