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amg4psblas/mlprec/mld_z_move_alloc_mod.f90

103 lines
3.8 KiB
Fortran

!!$
!!$
!!$ MLD2P4 version 2.0
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
!!$
!!$ (C) Copyright 2008,2009,2010
!!$
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$ Pasqua D'Ambra ICAR-CNR, Naples
!!$ Daniela di Serafino Second University of Naples
!!$
!!$ 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 MLD2P4 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 MLD2P4 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.
!!$
!!$
! File: mld_move_alloc_mod.f90
!
! Module: mld_move_alloc_mod
!
! This module defines move_alloc-like routines, and related interfaces,
! for the preconditioner data structures. .
!
module mld_z_move_alloc_mod
use mld_z_prec_type
interface mld_move_alloc
module procedure mld_zonelev_prec_move_alloc,&
& mld_zprec_move_alloc
end interface
contains
subroutine mld_zonelev_prec_move_alloc(a, b,info)
use psb_base_mod
implicit none
type(mld_zonelev_type), intent(inout) :: a, b
integer, intent(out) :: info
call mld_precfree(b,info)
call move_alloc(a%sm,b%sm)
if (info == psb_success_) call psb_move_alloc(a%ac,b%ac,info)
if (info == psb_success_) call psb_move_alloc(a%desc_ac,b%desc_ac,info)
if (info == psb_success_) call psb_move_alloc(a%map,b%map,info)
b%base_a => a%base_a
b%base_desc => a%base_desc
end subroutine mld_zonelev_prec_move_alloc
subroutine mld_zprec_move_alloc(a, b,info)
use psb_base_mod
implicit none
type(mld_zprec_type), intent(inout) :: a
type(mld_zprec_type), intent(inout), target :: b
integer, intent(out) :: info
integer :: i,isz
if (allocated(b%precv)) then
! This might not be required if FINAL procedures are available.
call mld_precfree(b,info)
if (info /= psb_success_) then
! ?????
!!$ return
endif
end if
call move_alloc(a%precv,b%precv)
! Fix the pointers except on level 1.
do i=2, isz
b%precv(i)%base_a => b%precv(i)%ac
b%precv(i)%base_desc => b%precv(i)%desc_ac
b%precv(i)%map%p_desc_X => b%precv(i-1)%base_desc
b%precv(i)%map%p_desc_Y => b%precv(i)%base_desc
end do
end subroutine mld_zprec_move_alloc
end module mld_z_move_alloc_mod