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amg4psblas/mlprec/impl/level/mld_c_base_onelev_build.f90

126 lines
4.7 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_c_base_onelev_build(lv,info,amold,vmold,imold)
use psb_base_mod
use mld_c_onelev_mod, mld_protect_name => mld_c_base_onelev_build
implicit none
class(mld_c_onelev_type), target, intent(inout) :: lv
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
! Local
integer(psb_ipk_) :: err,i,k, err_act, iszv, newsz, casize
integer(psb_ipk_) :: ictxt, me, np
integer(psb_ipk_) :: ipv(mld_ifpsz_), val
integer(psb_ipk_) :: int_err(5)
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
name = 'mld_onelev_build'
if (psb_get_errstatus().ne.0) return
info=psb_success_
err=0
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
if (.not.associated(lv%base_desc)) then
info = psb_err_internal_error_
call psb_errpush(info,name,&
& a_err='Unassociated base DESC')
goto 9999
end if
info = psb_success_
int_err(1) = 0
ictxt = lv%base_desc%get_ctxt()
call psb_info(ictxt,me,np)
if (.not.allocated(lv%sm)) then
!! Error: should have called mld_dprecinit
info=3111
call psb_errpush(info,name)
goto 9999
end if
if (.not.allocated(lv%sm%sv)) then
!! Error: should have called mld_dprecinit
info=3111
call psb_errpush(info,name)
goto 9999
end if
lv%ac_nz_loc = lv%ac%get_nzeros()
lv%ac_nz_tot = lv%ac_nz_loc
call psb_sum(ictxt,lv%ac_nz_tot)
! end do
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),&
& 'Calling mlprcbld at level ',i
call mld_check_def(lv%parms%sweeps,&
& 'Jacobi sweeps',izero,is_int_non_negative)
call mld_check_def(lv%parms%sweeps_pre,&
& 'Jacobi sweeps',izero,is_int_non_negative)
call mld_check_def(lv%parms%sweeps_post,&
& 'Jacobi sweeps',izero,is_int_non_negative)
call lv%sm%build(lv%base_a,lv%base_desc,&
& 'F',info,amold=amold,vmold=vmold,imold=imold)
if (info == 0) then
if (allocated(lv%sm2a)) then
call lv%sm2a%build(lv%base_a,lv%base_desc,'F',info,&
& amold=amold,vmold=vmold,imold=imold)
lv%sm2 => lv%sm2a
else
lv%sm2 => lv%sm
end if
end if
if (info /=0) then
info = psb_err_internal_error_
call psb_errpush(info,name,&
& a_err='Smoother bld error')
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine mld_c_base_onelev_build