!!$
!!$
!!$ MLD2P4 version 2.0
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
!!$
!!$ (C) Copyright 2008,2009,2010,2012
!!$
!!$ 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.
!!$
!!$
!
!
!
!
!
!
module mld_s_diag_solver
use mld_s_base_solver_mod
type, extends(mld_s_base_solver_type) :: mld_s_diag_solver_type
type(psb_s_vect_type), allocatable :: dv
real(psb_spk_), allocatable :: d(:)
contains
procedure, pass(sv) :: build => mld_s_diag_solver_bld
procedure, pass(sv) :: apply_v => mld_s_diag_solver_apply_vect
procedure, pass(sv) :: apply_a => mld_s_diag_solver_apply
procedure, pass(sv) :: free => s_diag_solver_free
procedure, pass(sv) :: seti => s_diag_solver_seti
procedure, pass(sv) :: setc => s_diag_solver_setc
procedure, pass(sv) :: setr => s_diag_solver_setr
procedure, pass(sv) :: descr => s_diag_solver_descr
procedure, pass(sv) :: sizeof => s_diag_solver_sizeof
procedure, pass(sv) :: get_nzeros => s_diag_solver_get_nzeros
end type mld_s_diag_solver_type
private :: s_diag_solver_free, s_diag_solver_seti, &
& s_diag_solver_setc, s_diag_solver_setr,&
& s_diag_solver_descr, s_diag_solver_sizeof,&
& s_diag_solver_get_nzeros
interface
subroutine mld_s_diag_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
import :: psb_desc_type, psb_sspmat_type, psb_s_base_sparse_mat, &
& psb_s_vect_type, psb_s_base_vect_type, psb_spk_, mld_s_diag_solver_type
type(psb_desc_type), intent(in) :: desc_data
class(mld_s_diag_solver_type), intent(inout) :: sv
type(psb_s_vect_type), intent(inout) :: x
type(psb_s_vect_type), intent(inout) :: y
real(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_spk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
end subroutine mld_s_diag_solver_apply_vect
end interface
interface
subroutine mld_s_diag_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
import :: psb_desc_type, psb_sspmat_type, psb_s_base_sparse_mat, &
& psb_s_vect_type, psb_s_base_vect_type, psb_spk_, mld_s_diag_solver_type
type(psb_desc_type), intent(in) :: desc_data
class(mld_s_diag_solver_type), intent(in) :: sv
real(psb_spk_), intent(inout) :: x(:)
real(psb_spk_), intent(inout) :: y(:)
real(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_spk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
end subroutine mld_s_diag_solver_apply
end interface
interface
subroutine mld_s_diag_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
import :: psb_desc_type, psb_sspmat_type, psb_s_base_sparse_mat, &
& psb_s_vect_type, psb_s_base_vect_type, psb_spk_, mld_s_diag_solver_type
type(psb_sspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_s_diag_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_sspmat_type), intent(in), target, optional :: b
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
end subroutine mld_s_diag_solver_bld
end interface
contains
subroutine s_diag_solver_seti(sv,what,val,info)
Implicit None
! Arguments
class(mld_s_diag_solver_type), intent(inout) :: sv
integer, intent(in) :: what
integer, intent(in) :: val
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='s_diag_solver_seti'
info = psb_success_
return
end subroutine s_diag_solver_seti
subroutine s_diag_solver_setc(sv,what,val,info)
Implicit None
! Arguments
class(mld_s_diag_solver_type), intent(inout) :: sv
integer, intent(in) :: what
character(len=*), intent(in) :: val
integer, intent(out) :: info
Integer :: err_act, ival
character(len=20) :: name='s_diag_solver_setc'
info = psb_success_
return
end subroutine s_diag_solver_setc
subroutine s_diag_solver_setr(sv,what,val,info)
Implicit None
! Arguments
class(mld_s_diag_solver_type), intent(inout) :: sv
integer, intent(in) :: what
real(psb_spk_), intent(in) :: val
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='s_diag_solver_setr'
info = psb_success_
return
end subroutine s_diag_solver_setr
subroutine s_diag_solver_free(sv,info)
Implicit None
! Arguments
class(mld_s_diag_solver_type), intent(inout) :: sv
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='s_diag_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
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 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine s_diag_solver_free
subroutine s_diag_solver_descr(sv,info,iout,coarse)
Implicit None
! Arguments
class(mld_s_diag_solver_type), intent(in) :: sv
integer, intent(out) :: info
integer, intent(in), optional :: iout
logical, intent(in), optional :: coarse
! Local variables
integer :: err_act
integer :: ictxt, me, np
character(len=20), parameter :: name='mld_s_diag_solver_descr'
integer :: iout_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = 6
endif
write(iout_,*) ' Diagonal local solver '
return
end subroutine s_diag_solver_descr
function s_diag_solver_sizeof(sv) result(val)
implicit none
! Arguments
class(mld_s_diag_solver_type), intent(in) :: sv
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(sv%dv)) val = val + sv%dv%sizeof()
return
end function s_diag_solver_sizeof
function s_diag_solver_get_nzeros(sv) result(val)
implicit none
! Arguments
class(mld_s_diag_solver_type), intent(in) :: sv
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(sv%dv)) val = val + sv%dv%get_nrows()
return
end function s_diag_solver_get_nzeros
end module mld_s_diag_solver