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.
199 lines
6.9 KiB
Fortran
199 lines
6.9 KiB
Fortran
!!$
|
|
!!$
|
|
!!$ MD2P4
|
|
!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
|
|
!!$ for
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$ Daniela di Serafino Second University of Naples
|
|
!!$ Pasqua D'Ambra ICAR-CNR
|
|
!!$
|
|
!!$ 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 MD2P4 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 MD2P4 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 psb_dmlprc_bld(a,desc_a,p,info)
|
|
|
|
use psb_base_mod
|
|
use psb_prec_type
|
|
implicit none
|
|
|
|
type(psb_dspmat_type), intent(in), target :: a
|
|
type(psb_desc_type), intent(in), target :: desc_a
|
|
type(psb_dbaseprc_type), intent(inout),target :: p
|
|
integer, intent(out) :: info
|
|
|
|
type(psb_desc_type) :: desc_ac
|
|
|
|
integer :: i, nrg, nzg, err_act,k
|
|
character(len=20) :: name, ch_err
|
|
logical, parameter :: debug=.false.
|
|
type(psb_dspmat_type) :: ac
|
|
|
|
interface psb_baseprc_bld
|
|
subroutine psb_dbaseprc_bld(a,desc_a,p,info,upd)
|
|
use psb_base_mod
|
|
use psb_prec_type
|
|
type(psb_dspmat_type), target :: a
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
type(psb_dbaseprc_type),intent(inout) :: p
|
|
integer, intent(out) :: info
|
|
character, intent(in), optional :: upd
|
|
end subroutine psb_dbaseprc_bld
|
|
end interface
|
|
|
|
interface psb_genaggrmap
|
|
subroutine psb_dgenaggrmap(aggr_type,a,desc_a,nlaggr,ilaggr,info)
|
|
use psb_base_mod
|
|
use psb_prec_type
|
|
implicit none
|
|
integer, intent(in) :: aggr_type
|
|
type(psb_dspmat_type), intent(in) :: a
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
integer, allocatable :: ilaggr(:),nlaggr(:)
|
|
integer, intent(out) :: info
|
|
end subroutine psb_dgenaggrmap
|
|
end interface
|
|
|
|
interface psb_bldaggrmat
|
|
subroutine psb_dbldaggrmat(a,desc_a,ac,desc_ac,p,info)
|
|
use psb_base_mod
|
|
use psb_prec_type
|
|
type(psb_dspmat_type), intent(in), target :: a
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
type(psb_dspmat_type), intent(out),target :: ac
|
|
type(psb_desc_type), intent(inout) :: desc_ac
|
|
type(psb_dbaseprc_type), intent(inout), target :: p
|
|
integer, intent(out) :: info
|
|
end subroutine psb_dbldaggrmat
|
|
end interface
|
|
|
|
integer :: ictxt, np, me
|
|
|
|
name='psb_mlprec_bld'
|
|
if (psb_get_errstatus().ne.0) return
|
|
info = 0
|
|
ictxt = psb_cd_get_context(desc_a)
|
|
call psb_info(ictxt,me,np)
|
|
call psb_erractionsave(err_act)
|
|
call psb_nullify_sp(ac)
|
|
|
|
|
|
if (.not.allocated(p%iprcparm)) then
|
|
info = 2222
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
call psb_check_def(p%iprcparm(ml_type_),'Multilevel type',&
|
|
& mult_ml_prec_,is_legal_ml_type)
|
|
call psb_check_def(p%iprcparm(aggr_alg_),'aggregation',&
|
|
& loc_aggr_,is_legal_ml_aggr_kind)
|
|
call psb_check_def(p%iprcparm(smth_kind_),'Smoother kind',&
|
|
& smth_omg_,is_legal_ml_smth_kind)
|
|
call psb_check_def(p%iprcparm(coarse_mat_),'Coarse matrix',&
|
|
& mat_distr_,is_legal_ml_coarse_mat)
|
|
call psb_check_def(p%iprcparm(smth_pos_),'smooth_pos',&
|
|
& pre_smooth_,is_legal_ml_smooth_pos)
|
|
|
|
|
|
!!$ nullify(p%desc_data)
|
|
select case(p%iprcparm(f_type_))
|
|
case(f_ilu_n_)
|
|
call psb_check_def(p%iprcparm(ilu_fill_in_),'Level',0,is_legal_ml_lev)
|
|
case(f_ilu_e_)
|
|
call psb_check_def(p%dprcparm(fact_eps_),'Eps',dzero,is_legal_ml_eps)
|
|
end select
|
|
call psb_check_def(p%dprcparm(smooth_omega_),'omega',dzero,is_legal_omega)
|
|
call psb_check_def(p%iprcparm(jac_sweeps_),'Jacobi sweeps',&
|
|
& 1,is_legal_jac_sweeps)
|
|
|
|
|
|
! Currently this is ignored by gen_aggrmap, but it could be
|
|
! changed in the future. Need to package nlaggr & mlia in a
|
|
! private data structure?
|
|
call psb_genaggrmap(p%iprcparm(aggr_alg_),a,desc_a,p%nlaggr,p%mlia,info)
|
|
if(info /= 0) then
|
|
info=4010
|
|
ch_err='psb_gen_aggrmap'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if (debug) write(0,*) 'Out from genaggrmap',p%nlaggr
|
|
|
|
call psb_nullify_desc(desc_ac)
|
|
call psb_bldaggrmat(a,desc_a,ac,desc_ac,p,info)
|
|
if(info /= 0) then
|
|
info=4010
|
|
ch_err='psb_bld_aggrmat'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
if (debug) write(0,*) 'Out from bldaggrmat',desc_ac%matrix_data(:)
|
|
|
|
|
|
|
|
call psb_baseprc_bld(ac,desc_ac,p,info)
|
|
if (debug) write(0,*) 'Out from baseprcbld',info
|
|
if(info /= 0) then
|
|
info=4010
|
|
ch_err='psb_baseprc_bld'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
|
|
!
|
|
! We have used a separate ac because:
|
|
! 1. We want to reuse the same routines psb_ilu_bld etc.
|
|
! 2. We do NOT want to pass an argument twice to them
|
|
! p%av(ac_) and p, as this would violate the Fortran standard
|
|
! Hence a separate AC and a TRANSFER function at the end.
|
|
!
|
|
call psb_sp_transfer(ac,p%av(ac_),info)
|
|
p%base_a => p%av(ac_)
|
|
call psb_cdtransfer(desc_ac,p%desc_ac,info)
|
|
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='psb_cdtransfer'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
p%base_desc => p%desc_ac
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 continue
|
|
call psb_erractionrestore(err_act)
|
|
if (err_act.eq.psb_act_abort_) then
|
|
call psb_error()
|
|
return
|
|
end if
|
|
Return
|
|
|
|
end subroutine psb_dmlprc_bld
|