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191 lines
7.0 KiB
Fortran
191 lines
7.0 KiB
Fortran
!!$
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!!$
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!!$ MLD2P4 version 2.0
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
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!!$
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!!$ (C) Copyright 2008,2009,2010,2012,2013
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!!$
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$ Pasqua D'Ambra ICAR-CNR, Naples
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!!$ Daniela di Serafino Second University of Naples
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the MLD2P4 group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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!
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!
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!
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! Identity solver. Reference for nullprec.
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!
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!
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module mld_z_id_solver
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use mld_z_base_solver_mod
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type, extends(mld_z_base_solver_type) :: mld_z_id_solver_type
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contains
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procedure, pass(sv) :: build => z_id_solver_bld
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procedure, pass(sv) :: clone => mld_z_id_solver_clone
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procedure, pass(sv) :: apply_v => mld_z_id_solver_apply_vect
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procedure, pass(sv) :: apply_a => mld_z_id_solver_apply
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procedure, pass(sv) :: free => z_id_solver_free
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procedure, pass(sv) :: descr => z_id_solver_descr
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procedure, nopass :: get_fmt => z_id_solver_get_fmt
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end type mld_z_id_solver_type
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private :: z_id_solver_bld, &
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& z_id_solver_free, z_id_solver_get_fmt, &
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& z_id_solver_descr
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interface
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subroutine mld_z_id_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
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import :: psb_desc_type, psb_zspmat_type, psb_z_base_sparse_mat, &
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& psb_z_vect_type, psb_z_base_vect_type, psb_dpk_, &
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& mld_z_id_solver_type, psb_ipk_
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type(psb_desc_type), intent(in) :: desc_data
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class(mld_z_id_solver_type), intent(inout) :: sv
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type(psb_z_vect_type),intent(inout) :: x
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type(psb_z_vect_type),intent(inout) :: y
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complex(psb_dpk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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complex(psb_dpk_),target, intent(inout) :: work(:)
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integer(psb_ipk_), intent(out) :: info
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end subroutine mld_z_id_solver_apply_vect
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end interface
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interface
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subroutine mld_z_id_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
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import :: psb_desc_type, psb_zspmat_type, psb_z_base_sparse_mat, &
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& psb_z_vect_type, psb_z_base_vect_type, psb_dpk_, &
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& mld_z_id_solver_type, psb_ipk_
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type(psb_desc_type), intent(in) :: desc_data
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class(mld_z_id_solver_type), intent(in) :: sv
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complex(psb_dpk_),intent(inout) :: x(:)
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complex(psb_dpk_),intent(inout) :: y(:)
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complex(psb_dpk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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complex(psb_dpk_),target, intent(inout) :: work(:)
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integer(psb_ipk_), intent(out) :: info
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end subroutine mld_z_id_solver_apply
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end interface
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interface
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subroutine mld_z_id_solver_clone(sv,svout,info)
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import :: psb_desc_type, psb_zspmat_type, psb_z_base_sparse_mat, &
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& psb_z_vect_type, psb_z_base_vect_type, psb_dpk_, &
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& mld_z_base_solver_type, mld_z_id_solver_type, psb_ipk_
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Implicit None
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! Arguments
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class(mld_z_id_solver_type), intent(inout) :: sv
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class(mld_z_base_solver_type), allocatable, intent(inout) :: svout
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integer(psb_ipk_), intent(out) :: info
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end subroutine mld_z_id_solver_clone
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end interface
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contains
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subroutine z_id_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
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Implicit None
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! Arguments
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type(psb_zspmat_type), intent(in), target :: a
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Type(psb_desc_type), Intent(in) :: desc_a
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class(mld_z_id_solver_type), intent(inout) :: sv
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character, intent(in) :: upd
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integer(psb_ipk_), intent(out) :: info
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type(psb_zspmat_type), intent(in), target, optional :: b
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class(psb_z_base_sparse_mat), intent(in), optional :: amold
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class(psb_z_base_vect_type), intent(in), optional :: vmold
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! Local variables
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integer(psb_ipk_) :: n_row,n_col, nrow_a, nztota
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complex(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
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integer(psb_ipk_) :: i, err_act, debug_unit, debug_level
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character(len=20) :: name='z_id_solver_bld', ch_err
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info=psb_success_
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return
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end subroutine z_id_solver_bld
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subroutine z_id_solver_free(sv,info)
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Implicit None
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! Arguments
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class(mld_z_id_solver_type), intent(inout) :: sv
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act
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character(len=20) :: name='z_id_solver_free'
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info = psb_success_
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return
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end subroutine z_id_solver_free
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subroutine z_id_solver_descr(sv,info,iout,coarse)
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Implicit None
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! Arguments
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class(mld_z_id_solver_type), intent(in) :: sv
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: iout
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logical, intent(in), optional :: coarse
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! Local variables
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integer(psb_ipk_) :: err_act
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character(len=20), parameter :: name='mld_z_id_solver_descr'
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integer(psb_ipk_) :: iout_
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info = psb_success_
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if (present(iout)) then
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iout_ = iout
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else
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iout_ = 6
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endif
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write(iout_,*) ' Identity local solver '
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return
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end subroutine z_id_solver_descr
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function z_id_solver_get_fmt() result(val)
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implicit none
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character(len=32) :: val
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val = "Identity solver"
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end function z_id_solver_get_fmt
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end module mld_z_id_solver
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