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123 lines
4.5 KiB
Fortran
123 lines
4.5 KiB
Fortran
!
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!
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! MLD2P4 version 2.1
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! MultiLevel Domain Decomposition Parallel Preconditioners Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.5)
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!
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! (C) Copyright 2008, 2010, 2012, 2015, 2017
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!
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! Salvatore Filippone Cranfield University, UK
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! Pasqua D'Ambra IAC-CNR, Naples, IT
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! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta, IT
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the MLD2P4 group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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subroutine mld_s_base_onelev_build(lv,info,amold,vmold,imold)
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use psb_base_mod
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use mld_s_onelev_mod, mld_protect_name => mld_s_base_onelev_build
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implicit none
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class(mld_s_onelev_type), target, intent(inout) :: lv
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integer(psb_ipk_), intent(out) :: info
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class(psb_s_base_sparse_mat), intent(in), optional :: amold
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class(psb_s_base_vect_type), intent(in), optional :: vmold
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class(psb_i_base_vect_type), intent(in), optional :: imold
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! Local
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integer(psb_ipk_) :: err,i,k, err_act, iszv, newsz, casize
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integer(psb_ipk_) :: ictxt, me, np
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integer(psb_ipk_) :: ipv(mld_ifpsz_), val
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integer(psb_ipk_) :: int_err(5)
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integer(psb_ipk_) :: debug_level, debug_unit
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character(len=20) :: name, ch_err
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name = 'mld_onelev_build'
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if (psb_get_errstatus().ne.0) return
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info=psb_success_
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err=0
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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if (.not.associated(lv%base_desc)) then
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info = psb_err_internal_error_
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call psb_errpush(info,name,&
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& a_err='Unassociated base DESC')
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goto 9999
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end if
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info = psb_success_
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int_err(1) = 0
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ictxt = lv%base_desc%get_ctxt()
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call psb_info(ictxt,me,np)
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if (.not.allocated(lv%sm)) then
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!! Error: should have called mld_dprecinit
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info=3111
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call psb_errpush(info,name)
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goto 9999
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end if
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if (.not.allocated(lv%sm%sv)) then
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!! Error: should have called mld_dprecinit
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info=3111
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call psb_errpush(info,name)
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goto 9999
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end if
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lv%ac_nz_loc = lv%ac%get_nzeros()
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lv%ac_nz_tot = lv%ac_nz_loc
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call psb_sum(ictxt,lv%ac_nz_tot)
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! end do
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& 'Calling mlprcbld at level ',i
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call mld_check_def(lv%parms%sweeps_pre,&
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& 'Jacobi sweeps',izero,is_int_non_negative)
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call mld_check_def(lv%parms%sweeps_post,&
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& 'Jacobi sweeps',izero,is_int_non_negative)
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call lv%sm%build(lv%base_a,lv%base_desc,&
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& info,amold=amold,vmold=vmold,imold=imold)
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if (info == 0) then
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if (allocated(lv%sm2a)) then
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call lv%sm2a%build(lv%base_a,lv%base_desc,info,&
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& amold=amold,vmold=vmold,imold=imold)
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lv%sm2 => lv%sm2a
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else
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lv%sm2 => lv%sm
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end if
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end if
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if (info /=0) then
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info = psb_err_internal_error_
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call psb_errpush(info,name,&
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& a_err='Smoother bld error')
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine mld_s_base_onelev_build
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