You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
277 lines
10 KiB
Fortran
277 lines
10 KiB
Fortran
!
|
|
!
|
|
! MLD2P4 version 2.2
|
|
! MultiLevel Domain Decomposition Parallel Preconditioners Package
|
|
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
|
|
!
|
|
! (C) Copyright 2008-2018
|
|
!
|
|
! Salvatore Filippone
|
|
! Pasqua D'Ambra
|
|
! Daniela di Serafino
|
|
!
|
|
! 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_c_diag_solver_mod.f90
|
|
!
|
|
! Module: mld_c_diag_solver_mod
|
|
!
|
|
! This module defines:
|
|
! - the mld_c_diag_solver_type data structure containing the
|
|
! simple diagonal solver. This extracts the main diagonal of a matrix
|
|
! and precomputes its inverse. Combined with a Jacobi "smoother" generates
|
|
! what are commonly known as the classic Jacobi iterations
|
|
!
|
|
module mld_c_diag_solver
|
|
|
|
use mld_c_base_solver_mod
|
|
|
|
type, extends(mld_c_base_solver_type) :: mld_c_diag_solver_type
|
|
type(psb_c_vect_type), allocatable :: dv
|
|
complex(psb_spk_), allocatable :: d(:)
|
|
contains
|
|
procedure, pass(sv) :: dump => mld_c_diag_solver_dmp
|
|
procedure, pass(sv) :: build => mld_c_diag_solver_bld
|
|
procedure, pass(sv) :: cnv => mld_c_diag_solver_cnv
|
|
procedure, pass(sv) :: clone => mld_c_diag_solver_clone
|
|
procedure, pass(sv) :: apply_v => mld_c_diag_solver_apply_vect
|
|
procedure, pass(sv) :: apply_a => mld_c_diag_solver_apply
|
|
procedure, pass(sv) :: free => c_diag_solver_free
|
|
procedure, pass(sv) :: descr => c_diag_solver_descr
|
|
procedure, pass(sv) :: sizeof => c_diag_solver_sizeof
|
|
procedure, pass(sv) :: get_nzeros => c_diag_solver_get_nzeros
|
|
procedure, nopass :: get_fmt => c_diag_solver_get_fmt
|
|
procedure, nopass :: get_id => c_diag_solver_get_id
|
|
end type mld_c_diag_solver_type
|
|
|
|
|
|
private :: c_diag_solver_free, c_diag_solver_descr, &
|
|
& c_diag_solver_sizeof, c_diag_solver_get_nzeros, &
|
|
& c_diag_solver_get_fmt, c_diag_solver_get_id
|
|
|
|
|
|
interface
|
|
subroutine mld_c_diag_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
|
|
& trans,work,wv,info,init,initu)
|
|
import :: psb_desc_type, psb_cspmat_type, psb_c_base_sparse_mat, &
|
|
& psb_c_vect_type, psb_c_base_vect_type, psb_spk_, &
|
|
& mld_c_diag_solver_type, psb_ipk_
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(mld_c_diag_solver_type), intent(inout) :: sv
|
|
type(psb_c_vect_type), intent(inout) :: x
|
|
type(psb_c_vect_type), intent(inout) :: y
|
|
complex(psb_spk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
complex(psb_spk_),target, intent(inout) :: work(:)
|
|
type(psb_c_vect_type),intent(inout) :: wv(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
type(psb_c_vect_type),intent(inout), optional :: initu
|
|
end subroutine mld_c_diag_solver_apply_vect
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_c_diag_solver_apply(alpha,sv,x,beta,y,desc_data,&
|
|
& trans,work,info,init,initu)
|
|
import :: psb_desc_type, psb_cspmat_type, psb_c_base_sparse_mat, &
|
|
& psb_c_vect_type, psb_c_base_vect_type, psb_spk_, &
|
|
& mld_c_diag_solver_type, psb_ipk_
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(mld_c_diag_solver_type), intent(inout) :: sv
|
|
complex(psb_spk_), intent(inout) :: x(:)
|
|
complex(psb_spk_), intent(inout) :: y(:)
|
|
complex(psb_spk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
complex(psb_spk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
complex(psb_spk_),intent(inout), optional :: initu(:)
|
|
end subroutine mld_c_diag_solver_apply
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_c_diag_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
|
|
import :: psb_desc_type, psb_cspmat_type, psb_c_base_sparse_mat, &
|
|
& psb_c_vect_type, psb_c_base_vect_type, psb_spk_, &
|
|
& mld_c_diag_solver_type, psb_ipk_, psb_i_base_vect_type
|
|
type(psb_cspmat_type), intent(in), target :: a
|
|
Type(psb_desc_type), Intent(in) :: desc_a
|
|
class(mld_c_diag_solver_type), intent(inout) :: sv
|
|
integer(psb_ipk_), intent(out) :: info
|
|
type(psb_cspmat_type), intent(in), target, optional :: b
|
|
class(psb_c_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_c_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
end subroutine mld_c_diag_solver_bld
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_c_diag_solver_cnv(sv,info,amold,vmold,imold)
|
|
import :: psb_c_base_sparse_mat, psb_c_base_vect_type, psb_spk_, &
|
|
& mld_c_diag_solver_type, psb_ipk_, psb_i_base_vect_type
|
|
class(mld_c_diag_solver_type), intent(inout) :: sv
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_c_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_c_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
end subroutine mld_c_diag_solver_cnv
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_c_diag_solver_dmp(sv,ictxt,level,info,prefix,head,solver)
|
|
import :: psb_desc_type, mld_c_diag_solver_type, psb_c_vect_type, psb_spk_, &
|
|
& psb_cspmat_type, psb_c_base_sparse_mat, psb_c_base_vect_type, &
|
|
& psb_ipk_
|
|
implicit none
|
|
class(mld_c_diag_solver_type), intent(in) :: sv
|
|
integer(psb_ipk_), intent(in) :: ictxt
|
|
integer(psb_ipk_), intent(in) :: level
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character(len=*), intent(in), optional :: prefix, head
|
|
logical, optional, intent(in) :: solver
|
|
end subroutine mld_c_diag_solver_dmp
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_c_diag_solver_clone(sv,svout,info)
|
|
import :: psb_desc_type, psb_cspmat_type, psb_c_base_sparse_mat, &
|
|
& psb_c_vect_type, psb_c_base_vect_type, psb_spk_, &
|
|
& mld_c_base_solver_type, mld_c_diag_solver_type, psb_ipk_
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_c_diag_solver_type), intent(inout) :: sv
|
|
class(mld_c_base_solver_type), allocatable, intent(inout) :: svout
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_c_diag_solver_clone
|
|
end interface
|
|
|
|
|
|
contains
|
|
|
|
subroutine c_diag_solver_free(sv,info)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_c_diag_solver_type), intent(inout) :: sv
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_) :: err_act
|
|
character(len=20) :: name='c_diag_solver_free'
|
|
|
|
call psb_erractionsave(err_act)
|
|
info = psb_success_
|
|
|
|
if (allocated(sv%dv)) call sv%dv%free(info)
|
|
|
|
if (allocated(sv%d)) then
|
|
deallocate(sv%d,stat=info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine c_diag_solver_free
|
|
|
|
subroutine c_diag_solver_descr(sv,info,iout,coarse)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_c_diag_solver_type), intent(in) :: sv
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: iout
|
|
logical, intent(in), optional :: coarse
|
|
|
|
! Local variables
|
|
integer(psb_ipk_) :: err_act
|
|
character(len=20), parameter :: name='mld_c_diag_solver_descr'
|
|
integer(psb_ipk_) :: iout_
|
|
|
|
info = psb_success_
|
|
if (present(iout)) then
|
|
iout_ = iout
|
|
else
|
|
iout_ = psb_out_unit
|
|
endif
|
|
|
|
write(iout_,*) ' Diagonal local solver '
|
|
|
|
return
|
|
|
|
end subroutine c_diag_solver_descr
|
|
|
|
function c_diag_solver_sizeof(sv) result(val)
|
|
implicit none
|
|
! Arguments
|
|
class(mld_c_diag_solver_type), intent(in) :: sv
|
|
integer(psb_long_int_k_) :: val
|
|
integer(psb_ipk_) :: i
|
|
|
|
val = 0
|
|
if (allocated(sv%dv)) val = val + sv%dv%sizeof()
|
|
|
|
return
|
|
end function c_diag_solver_sizeof
|
|
|
|
function c_diag_solver_get_nzeros(sv) result(val)
|
|
implicit none
|
|
! Arguments
|
|
class(mld_c_diag_solver_type), intent(in) :: sv
|
|
integer(psb_long_int_k_) :: val
|
|
integer(psb_ipk_) :: i
|
|
|
|
val = 0
|
|
if (allocated(sv%dv)) val = val + sv%dv%get_nrows()
|
|
|
|
return
|
|
end function c_diag_solver_get_nzeros
|
|
|
|
function c_diag_solver_get_fmt() result(val)
|
|
implicit none
|
|
character(len=32) :: val
|
|
|
|
val = "Diag solver"
|
|
end function c_diag_solver_get_fmt
|
|
|
|
function c_diag_solver_get_id() result(val)
|
|
implicit none
|
|
integer(psb_ipk_) :: val
|
|
|
|
val = mld_diag_scale_
|
|
end function c_diag_solver_get_id
|
|
|
|
end module mld_c_diag_solver
|