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.
170 lines
5.1 KiB
Fortran
170 lines
5.1 KiB
Fortran
!!$
|
|
!!$
|
|
!!$ MLD2P4 version 2.0
|
|
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
|
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.3)
|
|
!!$
|
|
!!$ (C) Copyright 2008, 2010, 2012, 2015
|
|
!!$
|
|
!!$ 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.
|
|
!!$
|
|
!!$
|
|
subroutine mld_s_as_smoother_restr_a(sm,x,trans,work,info,data)
|
|
use psb_base_mod
|
|
use mld_s_as_smoother, mld_protect_nam => mld_s_as_smoother_restr_a
|
|
implicit none
|
|
class(mld_s_as_smoother_type), intent(inout) :: sm
|
|
real(psb_spk_), intent(inout) :: x(:)
|
|
character(len=1),intent(in) :: trans
|
|
real(psb_spk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional, intent(in) :: data
|
|
!Local
|
|
integer(psb_ipk_) :: ictxt,np,me, err_act,isz,int_err(5), data_
|
|
character :: trans_
|
|
character(len=20) :: name='s_as_smther_restr_a', ch_err
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
ictxt = sm%desc_data%get_context()
|
|
call psb_info(ictxt,me,np)
|
|
|
|
trans_ = psb_toupper(trans)
|
|
select case(trans_)
|
|
case('N')
|
|
case('T')
|
|
case('C')
|
|
case default
|
|
info = psb_err_iarg_invalid_i_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end select
|
|
|
|
if (present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_ext_
|
|
end if
|
|
|
|
if (.not.allocated(sm%sv)) then
|
|
info = 1121
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
|
|
|
|
select case(trans_)
|
|
case('N')
|
|
!
|
|
! Get the overlap entries x
|
|
!
|
|
if (sm%restr == psb_halo_) then
|
|
call psb_halo(x,sm%desc_data,info,work=work,data=data_)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_halo'
|
|
goto 9999
|
|
end if
|
|
else if (sm%restr /= psb_none_) then
|
|
call psb_errpush(psb_err_internal_error_,name,&
|
|
&a_err='Invalid mld_sub_restr_')
|
|
goto 9999
|
|
end if
|
|
|
|
|
|
case('T','C')
|
|
!
|
|
! With transpose, we have to do it here
|
|
!
|
|
|
|
select case (sm%prol)
|
|
|
|
case(psb_none_)
|
|
!
|
|
! Do nothing
|
|
|
|
case(psb_sum_)
|
|
!
|
|
! The transpose of sum is halo
|
|
!
|
|
call psb_halo(x,sm%desc_data,info,work=work,data=data_)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_halo'
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_avg_)
|
|
!
|
|
! Tricky one: first we have to scale the overlap entries,
|
|
! which we can do by assignind mode=0, i.e. no communication
|
|
! (hence only scaling), then we do the halo
|
|
!
|
|
call psb_ovrl(x,sm%desc_data,info,&
|
|
& update=psb_avg_,work=work,mode=izero)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ovrl'
|
|
goto 9999
|
|
end if
|
|
call psb_halo(x,sm%desc_data,info,work=work,data=data_)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_halo'
|
|
goto 9999
|
|
end if
|
|
|
|
case default
|
|
call psb_errpush(psb_err_internal_error_,name,&
|
|
& a_err='Invalid mld_sub_prol_')
|
|
goto 9999
|
|
end select
|
|
|
|
|
|
case default
|
|
info=psb_err_iarg_invalid_i_
|
|
int_err(1)=6
|
|
ch_err(2:2)=trans
|
|
goto 9999
|
|
end select
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
|
|
end subroutine mld_s_as_smoother_restr_a
|
|
|
|
|