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amg4psblas/mlprec/impl/level/mld_s_base_onelev_setsm.F90

109 lines
3.8 KiB
Fortran

!!$
!!$
!!$ MLD2P4 version 2.1
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.4)
!!$
!!$ (C) Copyright 2008, 2010, 2012, 2015, 2017
!!$
!!$ Salvatore Filippone Cranfield University
!!$ Ambra Abdullahi Hassan University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$ Pasqua D'Ambra ICAR-CNR, Naples
!!$ Daniela di Serafino University of Campania "L. Vanvitelli", Caserta
!!$
!!$ 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_base_onelev_setsm(lev,val,info,pos)
use psb_base_mod
use mld_s_prec_mod, mld_protect_name => mld_s_base_onelev_setsm
implicit none
! Arguments
class(mld_s_onelev_type), target, intent(inout) :: lev
class(mld_s_base_smoother_type), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
! Local variables
integer(psb_ipk_) :: ipos_
character(len=*), parameter :: name='mld_base_onelev_setsm'
info = psb_success_
if (present(pos)) then
select case(psb_toupper(trim(pos)))
case('PRE')
ipos_ = mld_pre_smooth_
case('POST')
ipos_ = mld_post_smooth_
case default
ipos_ = mld_pre_smooth_
end select
else
ipos_ = mld_pre_smooth_
end if
select case(ipos_)
case(mld_pre_smooth_)
if (allocated(lev%sm)) then
if (.not.same_type_as(lev%sm,val)) then
call lev%sm%free(info)
deallocate(lev%sm, stat=info)
end if
endif
if (.not.allocated(lev%sm)) then
#ifdef HAVE_MOLD
allocate(lev%sm,mold=val)
#else
allocate(lev%sm,source=val)
#endif
end if
call lev%sm%default()
lev%sm2 => lev%sm
case(mld_post_smooth_)
if (allocated(lev%sm2a)) then
if (.not.same_type_as(lev%sm2a,val)) then
call lev%sm2a%free(info)
deallocate(lev%sm2a, stat=info)
endif
end if
if (.not.allocated(lev%sm2a)) then
#ifdef HAVE_MOLD
allocate(lev%sm2a,mold=val)
#else
allocate(lev%sm2a,source=val)
#endif
end if
call lev%sm2a%default()
lev%sm2 => lev%sm2a
end select
end subroutine mld_s_base_onelev_setsm