!!$
!!$
!!$ MLD2P4 version 2.0
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
!!$
!!$ (C) Copyright 2008,2009,2010, 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.
!!$
!!$
!
!
!
!
!
!
module mld_s_jac_smoother
use mld_s_base_smoother_mod
type, extends(mld_s_base_smoother_type) :: mld_s_jac_smoother_type
! The local solver component is inherited from the
! parent type.
! class(mld_s_base_solver_type), allocatable :: sv
!
type(psb_sspmat_type) :: nd
integer :: nnz_nd_tot
contains
procedure, pass(sm) :: build => mld_s_jac_smoother_bld
procedure, pass(sm) :: apply_v => mld_s_jac_smoother_apply_vect
procedure, pass(sm) :: apply_a => mld_s_jac_smoother_apply
procedure, pass(sm) :: free => s_jac_smoother_free
procedure, pass(sm) :: seti => s_jac_smoother_seti
procedure, pass(sm) :: setc => s_jac_smoother_setc
procedure, pass(sm) :: setr => s_jac_smoother_setr
procedure, pass(sm) :: descr => s_jac_smoother_descr
procedure, pass(sm) :: sizeof => s_jac_smoother_sizeof
procedure, pass(sm) :: get_nzeros => s_jac_smoother_get_nzeros
end type mld_s_jac_smoother_type
private :: s_jac_smoother_free, s_jac_smoother_seti, &
& s_jac_smoother_setc, s_jac_smoother_setr,&
& s_jac_smoother_descr, s_jac_smoother_sizeof, &
& s_jac_smoother_get_nzeros
interface
subroutine mld_s_jac_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
import :: psb_desc_type, mld_s_jac_smoother_type, psb_s_vect_type, psb_spk_, &
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
type(psb_desc_type), intent(in) :: desc_data
class(mld_s_jac_smoother_type), intent(inout) :: sm
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
integer, intent(in) :: sweeps
real(psb_spk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
end subroutine mld_s_jac_smoother_apply_vect
end interface
interface
subroutine mld_s_jac_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info)
import :: psb_desc_type, mld_s_jac_smoother_type, psb_s_vect_type, psb_spk_, &
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
type(psb_desc_type), intent(in) :: desc_data
class(mld_s_jac_smoother_type), intent(in) :: sm
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
integer, intent(in) :: sweeps
real(psb_spk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
end subroutine mld_s_jac_smoother_apply
end interface
interface
subroutine mld_s_jac_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
import :: psb_desc_type, mld_s_jac_smoother_type, psb_s_vect_type, psb_spk_, &
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
type(psb_sspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_s_jac_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
end subroutine mld_s_jac_smoother_bld
end interface
contains
subroutine s_jac_smoother_seti(sm,what,val,info)
Implicit None
! Arguments
class(mld_s_jac_smoother_type), intent(inout) :: sm
integer, intent(in) :: what
integer, intent(in) :: val
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='s_jac_smoother_seti'
info = psb_success_
call psb_erractionsave(err_act)
select case(what)
! !$ case(mld_smoother_sweeps_)
! !$ sm%sweeps = val
case default
if (allocated(sm%sv)) then
call sm%sv%set(what,val,info)
end if
end select
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_jac_smoother_seti
subroutine s_jac_smoother_setc(sm,what,val,info)
Implicit None
! Arguments
class(mld_s_jac_smoother_type), intent(inout) :: sm
integer, intent(in) :: what
character(len=*), intent(in) :: val
integer, intent(out) :: info
Integer :: err_act, ival
character(len=20) :: name='s_jac_smoother_setc'
info = psb_success_
call psb_erractionsave(err_act)
call mld_stringval(val,ival,info)
if (info == psb_success_) call sm%set(what,ival,info)
if (info /= psb_success_) then
info = psb_err_from_subroutine_
call psb_errpush(info, name)
goto 9999
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_jac_smoother_setc
subroutine s_jac_smoother_setr(sm,what,val,info)
Implicit None
! Arguments
class(mld_s_jac_smoother_type), intent(inout) :: sm
integer, intent(in) :: what
real(psb_spk_), intent(in) :: val
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='s_jac_smoother_setr'
call psb_erractionsave(err_act)
info = psb_success_
if (allocated(sm%sv)) then
call sm%sv%set(what,val,info)
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_jac_smoother_setr
subroutine s_jac_smoother_free(sm,info)
Implicit None
! Arguments
class(mld_s_jac_smoother_type), intent(inout) :: sm
integer, intent(out) :: info
Integer :: err_act
character(len=20) :: name='s_jac_smoother_free'
call psb_erractionsave(err_act)
info = psb_success_
if (allocated(sm%sv)) then
call sm%sv%free(info)
if (info == psb_success_) deallocate(sm%sv,stat=info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
end if
call sm%nd%free()
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_jac_smoother_free
subroutine s_jac_smoother_descr(sm,info,iout,coarse)
Implicit None
! Arguments
class(mld_s_jac_smoother_type), intent(in) :: sm
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_jac_smoother_descr'
integer :: iout_
logical :: coarse_
call psb_erractionsave(err_act)
info = psb_success_
if (present(coarse)) then
coarse_ = coarse
else
coarse_ = .false.
end if
if (present(iout)) then
iout_ = iout
else
iout_ = 6
endif
if (.not.coarse_) then
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Local solver:'
end if
if (allocated(sm%sv)) then
call sm%sv%descr(info,iout_,coarse=coarse)
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_jac_smoother_descr
function s_jac_smoother_sizeof(sm) result(val)
implicit none
! Arguments
class(mld_s_jac_smoother_type), intent(in) :: sm
integer(psb_long_int_k_) :: val
integer :: i
val = psb_sizeof_int
if (allocated(sm%sv)) val = val + sm%sv%sizeof()
val = val + sm%nd%sizeof()
return
end function s_jac_smoother_sizeof
function s_jac_smoother_get_nzeros(sm) result(val)
implicit none
! Arguments
class(mld_s_jac_smoother_type), intent(in) :: sm
integer(psb_long_int_k_) :: val
integer :: i
val = 0
if (allocated(sm%sv)) val = val + sm%sv%get_nzeros()
val = val + sm%nd%get_nzeros()
return
end function s_jac_smoother_get_nzeros
end module mld_s_jac_smoother