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557 lines
19 KiB
Fortran
557 lines
19 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 3.4)
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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
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!!$ Ambra Abdullahi Hassan University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$ Pasqua D'Ambra ICAR-CNR, Naples
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!!$ Daniela di Serafino Second University of Naples
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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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! File: mld_dprecset.f90
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!
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! Subroutine: mld_dprecseti
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! Version: real
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!
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! This routine sets the integer parameters defining the preconditioner. More
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! precisely, the integer parameter identified by 'what' is assigned the value
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! contained in 'val'.
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! For the multilevel preconditioners, the levels are numbered in increasing
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! order starting from the finest one, i.e. level 1 is the finest level.
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!
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! To set character and real parameters, see mld_dprecsetc and mld_dprecsetr,
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! respectively.
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!
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!
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! Arguments:
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! p - type(mld_dprec_type), input/output.
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! The preconditioner data structure.
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! what - integer, input.
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! The number identifying the parameter to be set.
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! A mnemonic constant has been associated to each of these
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! numbers, as reported in the MLD2P4 User's and Reference Guide.
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! val - integer, input.
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! The value of the parameter to be set. The list of allowed
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! values is reported in the MLD2P4 User's and Reference Guide.
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! info - integer, output.
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! Error code.
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! ilev - integer, optional, input.
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! For the multilevel preconditioner, the level at which the
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! preconditioner parameter has to be set.
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! If nlev is not present, the parameter identified by 'what'
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! is set at all the appropriate levels.
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!
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! NOTE: currently, the use of the argument ilev is not "safe" and is reserved to
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! MLD2P4 developers. Indeed, by using ilev it is possible to set different values
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! of the same parameter at different levels 1,...,nlev-1, even in cases where
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! the parameter must have the same value at all the levels but the coarsest one.
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! For this reason, the interface mld_precset to this routine has been built in
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! such a way that ilev is not visible to the user (see mld_prec_mod.f90).
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!
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subroutine mld_dcprecseti(p,what,val,info,ilev,ilmax,pos)
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use psb_base_mod
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use mld_d_prec_mod, mld_protect_name => mld_dcprecseti
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use mld_d_jac_smoother
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use mld_d_as_smoother
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use mld_d_diag_solver
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use mld_d_ilu_solver
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use mld_d_id_solver
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use mld_d_gs_solver
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#if defined(HAVE_UMF_)
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use mld_d_umf_solver
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#endif
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#if defined(HAVE_SLUDIST_)
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use mld_d_sludist_solver
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#endif
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#if defined(HAVE_SLU_)
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use mld_d_slu_solver
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#endif
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#if defined(HAVE_MUMPS_)
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use mld_d_mumps_solver
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#endif
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implicit none
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! Arguments
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class(mld_dprec_type), intent(inout) :: p
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character(len=*), intent(in) :: what
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integer(psb_ipk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), optional, intent(in) :: ilev,ilmax
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character(len=*), optional, intent(in) :: pos
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! Local variables
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integer(psb_ipk_) :: ilev_, nlev_
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character(len=*), parameter :: name='mld_precseti'
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info = psb_success_
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if (.not.allocated(p%precv)) then
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info = 3111
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write(psb_err_unit,*) name,&
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& ': Error: uninitialized preconditioner,',&
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&' should call MLD_PRECINIT'
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return
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endif
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nlev_ = size(p%precv)
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if (present(ilev)) then
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ilev_ = ilev
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else
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ilev_ = 1
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end if
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if ((ilev_<1).or.(ilev_ > nlev_)) then
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info = -1
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write(psb_err_unit,*) name,&
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&': Error: invalid ILEV/NLEV combination',ilev_, nlev_
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return
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endif
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select case(psb_toupper(what))
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case ('COARSE_AGGR_SIZE')
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p%coarse_aggr_size = max(val,-1)
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return
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case ('N_PREC_LEVS')
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p%n_prec_levs = max(val,1)
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return
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case('MAX_PREC_LEVS')
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p%max_prec_levs = max(val,1)
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return
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case ('OUTER_SWEEPS')
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p%outer_sweeps = max(val,1)
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return
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end select
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!
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! Set preconditioner parameters at level ilev.
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!
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if (present(ilev)) then
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if (ilev_ == 1) then
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!
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! Rules for fine level are slightly different.
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!
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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else if (ilev_ > 1) then
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select case(psb_toupper(what))
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case('SMOOTHER_TYPE','SUB_SOLVE','SMOOTHER_SWEEPS',&
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& 'ML_TYPE','AGGR_ALG','AGGR_ORD',&
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& 'AGGR_KIND','SMOOTHER_POS','AGGR_OMEGA_ALG',&
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& 'AGGR_EIG','SMOOTHER_SWEEPS_PRE',&
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& 'SMOOTHER_SWEEPS_POST',&
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& 'SUB_RESTR','SUB_PROL', &
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& 'SUB_REN','SUB_OVR','SUB_FILLIN',&
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& 'COARSE_MAT')
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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case('COARSE_SUBSOLVE')
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if (ilev_ /= nlev_) then
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write(psb_err_unit,*) name,&
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& ': Error: Inconsistent specification of WHAT vs. ILEV'
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info = -2
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return
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end if
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call p%precv(ilev_)%set('SUB_SOLVE',val,info,pos=pos)
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case('COARSE_SOLVE')
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if (ilev_ /= nlev_) then
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write(psb_err_unit,*) name,&
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& ': Error: Inconsistent specification of WHAT vs. ILEV'
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info = -2
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return
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end if
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if (nlev_ > 1) then
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call p%precv(nlev_)%set('COARSE_SOLVE',val,info,pos=pos)
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select case (val)
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case(mld_bjac_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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#if defined(HAVE_UMF_)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_umf_,info,pos=pos)
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#elif defined(HAVE_SLU_)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_slu_,info,pos=pos)
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#elif defined(HAVE_MUMPS_)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_mumps_,info,pos=pos)
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#else
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call p%precv(nlev_)%set('SUB_SOLVE',mld_ilu_n_,info,pos=pos)
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#endif
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call p%precv(nlev_)%set('COARSE_MAT',mld_distr_mat_,info)
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case(mld_umf_, mld_slu_,mld_ilu_n_, mld_ilu_t_,mld_milu_n_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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call p%precv(nlev_)%set('SUB_SOLVE',val,info,pos=pos)
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call p%precv(nlev_)%set('COARSE_MAT',mld_repl_mat_,info,pos=pos)
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case(mld_sludist_,mld_mumps_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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call p%precv(nlev_)%set('SUB_SOLVE',val,info,pos=pos)
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call p%precv(nlev_)%set('COARSE_MAT',mld_distr_mat_,info,pos=pos)
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case(mld_jac_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_diag_scale_,info,pos=pos)
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call p%precv(nlev_)%set('COARSE_MAT',mld_distr_mat_,info,pos=pos)
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end select
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endif
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case('COARSE_SWEEPS')
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if (ilev_ /= nlev_) then
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write(psb_err_unit,*) name,&
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& ': Error: Inconsistent specification of WHAT vs. ILEV'
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info = -2
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return
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end if
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call p%precv(nlev_)%set('SMOOTHER_SWEEPS',val,info,pos=pos)
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case('COARSE_FILLIN')
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if (ilev_ /= nlev_) then
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write(psb_err_unit,*) name,&
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& ': Error: Inconsistent specification of WHAT vs. ILEV'
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info = -2
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return
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end if
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call p%precv(nlev_)%set('SUB_FILLIN',val,info,pos=pos)
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case default
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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end select
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endif
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else if (.not.present(ilev)) then
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!
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! ilev not specified: set preconditioner parameters at all the appropriate
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! levels
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!
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select case(psb_toupper(trim(what)))
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case('SUB_SOLVE','SUB_RESTR','SUB_PROL',&
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& 'SUB_REN','SUB_OVR','SUB_FILLIN',&
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& 'SMOOTHER_SWEEPS','SMOOTHER_TYPE')
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do ilev_=1,max(1,nlev_-1)
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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if (info /= 0) return
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end do
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case('ML_TYPE','AGGR_ALG','AGGR_ORD','AGGR_KIND',&
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& 'SMOOTHER_SWEEPS_PRE','SMOOTHER_SWEEPS_POST',&
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& 'SMOOTHER_POS','AGGR_OMEGA_ALG',&
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& 'AGGR_EIG','AGGR_FILTER')
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do ilev_=1,nlev_
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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if (info /= 0) return
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end do
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case('COARSE_MAT')
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if (nlev_ > 1) then
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call p%precv(nlev_)%set('COARSE_MAT',val,info,pos=pos)
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end if
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case('COARSE_SOLVE')
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if (nlev_ > 1) then
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call p%precv(nlev_)%set('COARSE_SOLVE',val,info,pos=pos)
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select case (val)
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case(mld_bjac_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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#if defined(HAVE_UMF_)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_umf_,info,pos=pos)
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#elif defined(HAVE_SLU_)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_slu_,info,pos=pos)
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#elif defined(HAVE_MUMPS_)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_mumps_,info,pos=pos)
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#else
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call p%precv(nlev_)%set('SUB_SOLVE',mld_ilu_n_,info,pos=pos)
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#endif
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call p%precv(nlev_)%set('COARSE_MAT',mld_distr_mat_,info)
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case(mld_umf_, mld_slu_,mld_ilu_n_, mld_ilu_t_,mld_milu_n_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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call p%precv(nlev_)%set('SUB_SOLVE',val,info,pos=pos)
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call p%precv(nlev_)%set('COARSE_MAT',mld_repl_mat_,info,pos=pos)
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case(mld_sludist_,mld_mumps_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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call p%precv(nlev_)%set('SUB_SOLVE',val,info,pos=pos)
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call p%precv(nlev_)%set('COARSE_MAT',mld_distr_mat_,info,pos=pos)
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case(mld_jac_)
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call p%precv(nlev_)%set('SMOOTHER_TYPE',mld_bjac_,info,pos=pos)
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call p%precv(nlev_)%set('SUB_SOLVE',mld_diag_scale_,info,pos=pos)
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call p%precv(nlev_)%set('COARSE_MAT',mld_distr_mat_,info,pos=pos)
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end select
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endif
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case('COARSE_SUBSOLVE')
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if (nlev_ > 1) then
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call p%precv(nlev_)%set('SUB_SOLVE',val,info,pos=pos)
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endif
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case('COARSE_SWEEPS')
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if (nlev_ > 1) then
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call p%precv(nlev_)%set('SMOOTHER_SWEEPS',val,info,pos=pos)
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end if
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case('COARSE_FILLIN')
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if (nlev_ > 1) then
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call p%precv(nlev_)%set('SUB_FILLIN',val,info,pos=pos)
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end if
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case default
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do ilev_=1,nlev_
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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end do
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end select
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endif
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end subroutine mld_dcprecseti
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!
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! Subroutine: mld_dprecsetc
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! Version: real
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!
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! This routine sets the character parameters defining the preconditioner. More
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! precisely, the character parameter identified by 'what' is assigned the value
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! contained in 'val'.
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! For the multilevel preconditioners, the levels are numbered in increasing
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! order starting from the finest one, i.e. level 1 is the finest level.
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!
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! To set integer and real parameters, see mld_dprecseti and mld_dprecsetr,
|
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! respectively.
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!
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!
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! Arguments:
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! p - type(mld_dprec_type), input/output.
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! The preconditioner data structure.
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! what - integer, input.
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! The number identifying the parameter to be set.
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! A mnemonic constant has been associated to each of these
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! numbers, as reported in the MLD2P4 User's and Reference Guide.
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! string - character(len=*), input.
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! The value of the parameter to be set. The list of allowed
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! values is reported in the MLD2P4 User's and Reference Guide.
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! info - integer, output.
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! Error code.
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! ilev - integer, optional, input.
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! For the multilevel preconditioner, the level at which the
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! preconditioner parameter has to be set.
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! If nlev is not present, the parameter identified by 'what'
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|
! is set at all the appropriate levels.
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|
!
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|
! NOTE: currently, the use of the argument ilev is not "safe" and is reserved to
|
|
! MLD2P4 developers. Indeed, by using ilev it is possible to set different values
|
|
! of the same parameter at different levels 1,...,nlev-1, even in cases where
|
|
! the parameter must have the same value at all the levels but the coarsest one.
|
|
! For this reason, the interface mld_precset to this routine has been built in
|
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! such a way that ilev is not visible to the user (see mld_prec_mod.f90).
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!
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subroutine mld_dcprecsetc(p,what,string,info,ilev,ilmax,pos)
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use psb_base_mod
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use mld_d_prec_mod, mld_protect_name => mld_dcprecsetc
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implicit none
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! Arguments
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class(mld_dprec_type), intent(inout) :: p
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character(len=*), intent(in) :: what
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character(len=*), intent(in) :: string
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), optional, intent(in) :: ilev,ilmax
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character(len=*), optional, intent(in) :: pos
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! Local variables
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integer(psb_ipk_) :: ilev_, nlev_,val
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character(len=*), parameter :: name='mld_precsetc'
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info = psb_success_
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if (.not.allocated(p%precv)) then
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info = 3111
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return
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endif
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nlev_ = size(p%precv)
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if (present(ilev)) then
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ilev_ = ilev
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else
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ilev_ = 1
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end if
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if ((ilev_<1).or.(ilev_ > nlev_)) then
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write(psb_err_unit,*) name,&
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& ': Error: invalid ILEV/NLEV combination',ilev_, nlev_
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info = -1
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return
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endif
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val = mld_stringval(string)
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if (val >=0) then
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call p%set(what,val,info,ilev=ilev,pos=pos)
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else
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call p%precv(ilev_)%set(what,string,info,pos=pos)
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end if
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end subroutine mld_dcprecsetc
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|
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!
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! Subroutine: mld_dprecsetr
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! Version: real
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!
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! This routine sets the real parameters defining the preconditioner. More
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! precisely, the real parameter identified by 'what' is assigned the value
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! contained in 'val'.
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|
! For the multilevel preconditioners, the levels are numbered in increasing
|
|
! order starting from the finest one, i.e. level 1 is the finest level.
|
|
!
|
|
! To set integer and character parameters, see mld_dprecseti and mld_dprecsetc,
|
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! respectively.
|
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!
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! Arguments:
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! p - type(mld_dprec_type), input/output.
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! The preconditioner data structure.
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! what - integer, input.
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! The number identifying the parameter to be set.
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! A mnemonic constant has been associated to each of these
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! numbers, as reported in the MLD2P4 User's and Reference Guide.
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! val - real(psb_dpk_), input.
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! The value of the parameter to be set. The list of allowed
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! values is reported in the MLD2P4 User's and Reference Guide.
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! info - integer, output.
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! Error code.
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! ilev - integer, optional, input.
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! For the multilevel preconditioner, the level at which the
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! preconditioner parameter has to be set.
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! If nlev is not present, the parameter identified by 'what'
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! is set at all the appropriate levels.
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!
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! NOTE: currently, the use of the argument ilev is not "safe" and is reserved to
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! MLD2P4 developers. Indeed, by using ilev it is possible to set different values
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! of the same parameter at different levels 1,...,nlev-1, even in cases where
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! the parameter must have the same value at all the levels but the coarsest one.
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! For this reason, the interface mld_precset to this routine has been built in
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! such a way that ilev is not visible to the user (see mld_prec_mod.f90).
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!
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subroutine mld_dcprecsetr(p,what,val,info,ilev,ilmax,pos)
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use psb_base_mod
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use mld_d_prec_mod, mld_protect_name => mld_dcprecsetr
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implicit none
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! Arguments
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class(mld_dprec_type), intent(inout) :: p
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character(len=*), intent(in) :: what
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real(psb_dpk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), optional, intent(in) :: ilev,ilmax
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character(len=*), optional, intent(in) :: pos
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! Local variables
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integer(psb_ipk_) :: ilev_,nlev_
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real(psb_dpk_) :: thr
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character(len=*), parameter :: name='mld_precsetr'
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info = psb_success_
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if (present(ilev)) then
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ilev_ = ilev
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else
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ilev_ = 1
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end if
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select case(psb_toupper(what))
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case ('MIN_AGGR_RATIO')
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p%min_aggr_ratio = max(done,val)
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return
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end select
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if (.not.allocated(p%precv)) then
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write(psb_err_unit,*) name,&
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&': Error: uninitialized preconditioner,',&
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&' should call MLD_PRECINIT'
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info = 3111
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return
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endif
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nlev_ = size(p%precv)
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if ((ilev_<1).or.(ilev_ > nlev_)) then
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write(psb_err_unit,*) name,&
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& ': Error: invalid ILEV/NLEV combination',&
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& ilev_, nlev_
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info = -1
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return
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endif
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!
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! Set preconditioner parameters at level ilev.
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!
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if (present(ilev)) then
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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else if (.not.present(ilev)) then
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!
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! ilev not specified: set preconditioner parameters at all the appropriate levels
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!
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select case(psb_toupper(what))
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case('COARSE_ILUTHRS')
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ilev_=nlev_
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call p%precv(ilev_)%set('SUB_ILUTHRS',val,info,pos=pos)
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case('AGGR_SCALE')
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do ilev_ = 2, nlev_
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call p%precv(ilev_)%set('AGGR_SCALE',val,info,pos=pos)
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end do
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case('AGGR_THRESH')
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thr = val
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do ilev_ = 2, nlev_
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call p%precv(ilev_)%set('AGGR_THRESH',thr,info,pos=pos)
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thr = thr * p%precv(ilev_)%parms%aggr_scale
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end do
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case default
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do ilev_=1,nlev_
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call p%precv(ilev_)%set(what,val,info,pos=pos)
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end do
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end select
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endif
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end subroutine mld_dcprecsetr
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