mld2p4-2:
mlprec/Makefile mlprec/mld_base_prec_type.f90 mlprec/mld_d_as_smoother.f03 mlprec/mld_d_diag_solver.f03 mlprec/mld_d_ilu_solver.f03 mlprec/mld_d_jac_smoother.f03 mlprec/mld_d_prec_type.f03 mlprec/mld_dprecinit.F90 mlprec/mld_dprecset.f90 Definition of smoother/solver objects.stopcriterion
Salvatore Filippone
15 years ago
parent
eb4cb16259
commit
bbd82a5b45
@ -0,0 +1,766 @@
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!!$
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!!$
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!!$ MLD2P4 version 2.0
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
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!!$
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!!$ (C) Copyright 2008,2009, 2010
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!!$
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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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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!
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!
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!
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!
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!
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!
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module mld_d_as_smoother
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use mld_d_prec_type
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type, extends(mld_d_base_smoother_type) :: mld_d_as_smoother_type
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! The local solver component is inherited from the
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! parent type.
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! class(mld_d_base_solver_type), allocatable :: sv
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!
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type(psb_d_sparse_mat) :: nd
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type(psb_desc_type) :: desc_data
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integer :: novr, sweeps, restr, prol
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contains
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procedure, pass(sm) :: build => d_as_smoother_bld
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procedure, pass(sm) :: apply => d_as_smoother_apply
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procedure, pass(sm) :: free => d_as_smoother_free
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procedure, pass(sm) :: seti => d_as_smoother_seti
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procedure, pass(sm) :: setc => d_as_smoother_setc
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procedure, pass(sm) :: setr => d_as_smoother_setr
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procedure, pass(sm) :: descr => d_as_smoother_descr
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procedure, pass(sm) :: sizeof => d_as_smoother_sizeof
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end type mld_d_as_smoother_type
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private :: d_as_smoother_bld, d_as_smoother_apply, &
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& d_as_smoother_free, d_as_smoother_seti, &
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& d_as_smoother_setc, d_as_smoother_setr,&
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& d_as_smoother_descr, d_as_smoother_sizeof
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contains
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subroutine d_as_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,work,info)
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use psb_base_mod
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type(psb_desc_type), intent(in) :: desc_data
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class(mld_d_as_smoother_type), intent(in) :: sm
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real(psb_dpk_),intent(in) :: x(:)
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real(psb_dpk_),intent(inout) :: y(:)
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real(psb_dpk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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real(psb_dpk_),target, intent(inout) :: work(:)
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integer, intent(out) :: info
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integer :: n_row,n_col, nrow_d, i
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real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
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integer :: ictxt,np,me, err_act,isz,int_err(5)
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character :: trans_
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character(len=20) :: name='d_as_smoother_apply', ch_err
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call psb_erractionsave(err_act)
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info = 0
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trans_ = psb_toupper(trans)
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select case(trans_)
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case('N')
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case('T','C')
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case default
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call psb_errpush(40,name)
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goto 9999
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end select
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if (.not.allocated(sm%sv)) then
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info = 1121
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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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n_row = psb_cd_get_local_rows(sm%desc_data)
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n_col = psb_cd_get_local_cols(sm%desc_data)
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nrow_d = psb_cd_get_local_rows(desc_data)
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isz=max(n_row,N_COL)
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if ((6*isz) <= size(work)) then
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ww => work(1:isz)
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tx => work(isz+1:2*isz)
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ty => work(2*isz+1:3*isz)
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aux => work(3*isz+1:)
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else if ((4*isz) <= size(work)) then
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aux => work(1:)
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allocate(ww(isz),tx(isz),ty(isz),stat=info)
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if (info /= 0) then
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call psb_errpush(4025,name,i_err=(/3*isz,0,0,0,0/),&
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& a_err='real(psb_dpk_)')
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goto 9999
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end if
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else if ((3*isz) <= size(work)) then
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ww => work(1:isz)
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tx => work(isz+1:2*isz)
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ty => work(2*isz+1:3*isz)
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allocate(aux(4*isz),stat=info)
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if (info /= 0) then
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call psb_errpush(4025,name,i_err=(/4*isz,0,0,0,0/),&
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& a_err='real(psb_dpk_)')
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goto 9999
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end if
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else
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allocate(ww(isz),tx(isz),ty(isz),&
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&aux(4*isz),stat=info)
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if (info /= 0) then
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call psb_errpush(4025,name,i_err=(/4*isz,0,0,0,0/),&
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& a_err='real(psb_dpk_)')
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goto 9999
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end if
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endif
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tx(1:nrow_d) = x(1:nrow_d)
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tx(nrow_d+1:isz) = dzero
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if (sm%sweeps == 1) then
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select case(trans_)
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case('N')
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!
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! Get the overlap entries of tx (tx==x)
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!
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if (sm%restr==psb_halo_) then
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call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
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if(info /=0) then
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info=4010
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ch_err='psb_halo'
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goto 9999
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end if
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else if (sm%restr /= psb_none_) then
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call psb_errpush(4001,name,a_err='Invalid mld_sub_restr_')
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goto 9999
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end if
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case('T','C')
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!
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! With transpose, we have to do it here
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!
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select case (sm%prol)
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case(psb_none_)
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!
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! Do nothing
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case(psb_sum_)
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!
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! The transpose of sum is halo
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!
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call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
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if(info /=0) then
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info=4010
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ch_err='psb_halo'
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goto 9999
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end if
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case(psb_avg_)
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!
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! Tricky one: first we have to scale the overlap entries,
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! which we can do by assignind mode=0, i.e. no communication
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! (hence only scaling), then we do the halo
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!
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call psb_ovrl(tx,sm%desc_data,info,&
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& update=psb_avg_,work=aux,mode=0)
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if(info /=0) then
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info=4010
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ch_err='psb_ovrl'
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goto 9999
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end if
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call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
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if(info /=0) then
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info=4010
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ch_err='psb_halo'
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goto 9999
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end if
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case default
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call psb_errpush(4001,name,a_err='Invalid mld_sub_prol_')
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goto 9999
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end select
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case default
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info=40
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int_err(1)=6
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ch_err(2:2)=trans
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goto 9999
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end select
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call sm%sv%apply(done,tx,dzero,ty,sm%desc_data,trans_,aux,info)
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if (info /= 0) then
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call psb_errpush(4001,name,a_err='Error in sub_aply Jacobi Sweeps = 1')
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goto 9999
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endif
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select case(trans_)
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case('N')
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select case (sm%prol)
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case(psb_none_)
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!
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! Would work anyway, but since it is supposed to do nothing ...
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! call psb_ovrl(ty,sm%desc_data,info,&
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! & update=sm%prol,work=aux)
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case(psb_sum_,psb_avg_)
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!
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! Update the overlap of ty
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!
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call psb_ovrl(ty,sm%desc_data,info,&
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& update=sm%prol,work=aux)
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if(info /=0) then
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info=4010
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ch_err='psb_ovrl'
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goto 9999
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end if
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case default
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call psb_errpush(4001,name,a_err='Invalid mld_sub_prol_')
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goto 9999
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end select
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case('T','C')
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!
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! With transpose, we have to do it here
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!
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if (sm%restr == psb_halo_) then
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call psb_ovrl(ty,sm%desc_data,info,&
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& update=psb_sum_,work=aux)
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if(info /=0) then
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info=4010
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ch_err='psb_ovrl'
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goto 9999
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end if
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else if (sm%restr /= psb_none_) then
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call psb_errpush(4001,name,a_err='Invalid mld_sub_restr_')
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goto 9999
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end if
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case default
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info=40
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int_err(1)=6
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ch_err(2:2)=trans
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goto 9999
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end select
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else if (sm%sweeps > 1) then
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!
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!
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! Apply prec%iprcparm(mld_smoother_sweeps_) sweeps of a block-Jacobi solver
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! to compute an approximate solution of a linear system.
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!
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!
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ty = dzero
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do i=1, sm%sweeps
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select case(trans_)
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case('N')
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!
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! Get the overlap entries of tx (tx==x)
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!
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if (sm%restr==psb_halo_) then
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call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
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if(info /=0) then
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info=4010
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ch_err='psb_halo'
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goto 9999
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end if
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else if (sm%restr /= psb_none_) then
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call psb_errpush(4001,name,a_err='Invalid mld_sub_restr_')
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goto 9999
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end if
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case('T','C')
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!
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! With transpose, we have to do it here
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!
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select case (sm%prol)
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case(psb_none_)
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!
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! Do nothing
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case(psb_sum_)
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!
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! The transpose of sum is halo
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!
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call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
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if(info /=0) then
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info=4010
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ch_err='psb_halo'
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goto 9999
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end if
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case(psb_avg_)
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!
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! Tricky one: first we have to scale the overlap entries,
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! which we can do by assignind mode=0, i.e. no communication
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! (hence only scaling), then we do the halo
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!
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call psb_ovrl(tx,sm%desc_data,info,&
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& update=psb_avg_,work=aux,mode=0)
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if(info /=0) then
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info=4010
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ch_err='psb_ovrl'
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goto 9999
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end if
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call psb_halo(tx,sm%desc_data,info,work=aux,data=psb_comm_ext_)
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if(info /=0) then
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info=4010
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ch_err='psb_halo'
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goto 9999
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end if
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case default
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call psb_errpush(4001,name,a_err='Invalid mld_sub_prol_')
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goto 9999
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end select
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case default
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info=40
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int_err(1)=6
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ch_err(2:2)=trans
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goto 9999
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end select
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!
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! Compute Y(j+1) = D^(-1)*(X-ND*Y(j)), where D and ND are the
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! block diagonal part and the remaining part of the local matrix
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! and Y(j) is the approximate solution at sweep j.
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!
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ww(1:n_row) = tx(1:n_row)
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call psb_spmm(-done,sm%nd,tx,done,ww,sm%desc_data,info,work=aux,trans=trans_)
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if (info /=0) exit
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call sm%sv%apply(done,ww,dzero,ty,sm%desc_data,trans_,aux,info)
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if (info /=0) exit
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select case(trans_)
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case('N')
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select case (sm%prol)
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case(psb_none_)
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!
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! Would work anyway, but since it is supposed to do nothing ...
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! call psb_ovrl(ty,sm%desc_data,info,&
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! & update=sm%prol,work=aux)
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case(psb_sum_,psb_avg_)
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!
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! Update the overlap of ty
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!
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call psb_ovrl(ty,sm%desc_data,info,&
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& update=sm%prol,work=aux)
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if(info /=0) then
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info=4010
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ch_err='psb_ovrl'
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goto 9999
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end if
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case default
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call psb_errpush(4001,name,a_err='Invalid mld_sub_prol_')
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goto 9999
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end select
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case('T','C')
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!
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! With transpose, we have to do it here
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!
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if (sm%restr == psb_halo_) then
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call psb_ovrl(ty,sm%desc_data,info,&
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& update=psb_sum_,work=aux)
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if(info /=0) then
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info=4010
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ch_err='psb_ovrl'
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goto 9999
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end if
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else if (sm%restr /= psb_none_) then
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call psb_errpush(4001,name,a_err='Invalid mld_sub_restr_')
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goto 9999
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end if
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case default
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info=40
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int_err(1)=6
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ch_err(2:2)=trans
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goto 9999
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end select
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end do
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if (info /= 0) then
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info=4001
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call psb_errpush(info,name,a_err='subsolve with Jacobi sweeps > 1')
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goto 9999
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end if
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else
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info = 10
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call psb_errpush(info,name,&
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& i_err=(/2,sm%sweeps,0,0,0/))
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goto 9999
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end if
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!
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! Compute y = beta*y + alpha*ty (ty==K^(-1)*tx)
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!
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call psb_geaxpby(alpha,ty,beta,y,desc_data,info)
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if ((6*isz) <= size(work)) then
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else if ((4*isz) <= size(work)) then
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deallocate(ww,tx,ty)
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else if ((3*isz) <= size(work)) then
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deallocate(aux)
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else
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deallocate(ww,aux,tx,ty)
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endif
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call psb_erractionrestore(err_act)
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return
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||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
|
||||
end subroutine d_as_smoother_apply
|
||||
|
||||
subroutine d_as_smoother_bld(a,desc_a,sm,upd,info,b)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
type(psb_d_sparse_mat), intent(in), target :: a
|
||||
Type(psb_desc_type), Intent(in) :: desc_a
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
character, intent(in) :: upd
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat), intent(in), target, optional :: b
|
||||
! Local variables
|
||||
integer :: n_row,n_col, nrow_a, nztota
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
||||
character(len=20) :: name='d_as_smoother_bld', ch_err
|
||||
|
||||
info=0
|
||||
call psb_erractionsave(err_act)
|
||||
debug_unit = psb_get_debug_unit()
|
||||
debug_level = psb_get_debug_level()
|
||||
ictxt = psb_cd_get_context(desc_a)
|
||||
call psb_info(ictxt, me, np)
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' start'
|
||||
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_a)
|
||||
|
||||
nrow_a = a%get_nrows()
|
||||
nztota = a%get_nzeros()
|
||||
call a%csclip(sm%nd,info,&
|
||||
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
|
||||
if (info == 0) call sm%nd%cscnv(info,&
|
||||
& type='csr',dupl=psb_dupl_add_)
|
||||
if (info == 0) &
|
||||
& call sm%sv%build(a,desc_a,upd,info,b)
|
||||
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='clip & psb_spcnv csr 4')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' end'
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_as_smoother_bld
|
||||
|
||||
|
||||
subroutine d_as_smoother_seti(sm,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
integer, intent(in) :: what
|
||||
integer, intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_as_smoother_seti'
|
||||
|
||||
info = 0
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
select case(what)
|
||||
case(mld_smoother_sweeps_)
|
||||
sm%sweeps = val
|
||||
case default
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%set(what,val,info)
|
||||
else
|
||||
write(0,*) trim(name),' Missing component, not setting!'
|
||||
info = 1121
|
||||
end if
|
||||
end select
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_as_smoother_seti
|
||||
|
||||
subroutine d_as_smoother_setc(sm,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
integer, intent(in) :: what
|
||||
character(len=*), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, ival
|
||||
character(len=20) :: name='d_as_smoother_setc'
|
||||
|
||||
info = 0
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
|
||||
call mld_stringval(val,ival,info)
|
||||
if (info == 0) call sm%set(what,ival,info)
|
||||
if (info /= 0) then
|
||||
info = 4010
|
||||
call psb_errpush(info, name)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_as_smoother_setc
|
||||
|
||||
subroutine d_as_smoother_setr(sm,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
integer, intent(in) :: what
|
||||
real(psb_dpk_), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_as_smoother_setr'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%set(what,val,info)
|
||||
else
|
||||
write(0,*) trim(name),' Missing component, not setting!'
|
||||
info = 1121
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_as_smoother_setr
|
||||
|
||||
subroutine d_as_smoother_free(sm,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_as_smoother_free'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
|
||||
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%free(info)
|
||||
if (info == 0) deallocate(sm%sv,stat=info)
|
||||
if (info /= 0) then
|
||||
info = 4000
|
||||
call psb_errpush(info,name)
|
||||
goto 9999
|
||||
end if
|
||||
end if
|
||||
call sm%nd%free()
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_as_smoother_free
|
||||
|
||||
subroutine d_as_smoother_descr(sm,info,iout)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
integer, intent(out) :: info
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
! Local variables
|
||||
integer :: err_act
|
||||
integer :: ictxt, me, np
|
||||
character(len=20), parameter :: name='mld_d_as_smoother_descr'
|
||||
integer :: iout_
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
if (present(iout)) then
|
||||
iout_ = iout
|
||||
else
|
||||
iout_ = 6
|
||||
endif
|
||||
|
||||
write(iout_,*) ' Block Jacobi smoother with ',&
|
||||
& sm%sweeps,' sweeps.'
|
||||
write(iout_,*) ' Local solver:'
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%descr(info,iout_)
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_as_smoother_descr
|
||||
|
||||
function d_as_smoother_sizeof(sm) result(val)
|
||||
use psb_base_mod
|
||||
implicit none
|
||||
! Arguments
|
||||
class(mld_d_as_smoother_type), intent(inout) :: sm
|
||||
integer(psb_long_int_k_) :: val
|
||||
integer :: i
|
||||
|
||||
val = psb_sizeof_int
|
||||
if (allocated(sm%sv)) val = val + sm%sv%sizeof()
|
||||
val = val + sm%nd%sizeof()
|
||||
|
||||
return
|
||||
end function d_as_smoother_sizeof
|
||||
|
||||
end module mld_d_as_smoother
|
||||
@ -0,0 +1,466 @@
|
||||
!!$
|
||||
!!$
|
||||
!!$ MLD2P4 version 2.0
|
||||
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
||||
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
|
||||
!!$
|
||||
!!$ (C) Copyright 2008,2009, 2010
|
||||
!!$
|
||||
!!$ Salvatore Filippone University of Rome Tor Vergata
|
||||
!!$ Alfredo Buttari University of Rome Tor Vergata
|
||||
!!$ 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.
|
||||
!!$
|
||||
!!$
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
|
||||
module mld_d_diag_solver
|
||||
|
||||
use mld_d_prec_type
|
||||
|
||||
type, extends(mld_d_base_solver_type) :: mld_d_diag_solver_type
|
||||
real(psb_dpk_), allocatable :: d(:)
|
||||
contains
|
||||
procedure, pass(sv) :: build => d_diag_solver_bld
|
||||
procedure, pass(sv) :: apply => d_diag_solver_apply
|
||||
procedure, pass(sv) :: free => d_diag_solver_free
|
||||
procedure, pass(sv) :: seti => d_diag_solver_seti
|
||||
procedure, pass(sv) :: setc => d_diag_solver_setc
|
||||
procedure, pass(sv) :: setr => d_diag_solver_setr
|
||||
procedure, pass(sv) :: descr => d_diag_solver_descr
|
||||
procedure, pass(sv) :: sizeof => d_diag_solver_sizeof
|
||||
end type mld_d_diag_solver_type
|
||||
|
||||
|
||||
private :: d_diag_solver_bld, d_diag_solver_apply, &
|
||||
& d_diag_solver_free, d_diag_solver_seti, &
|
||||
& d_diag_solver_setc, d_diag_solver_setr,&
|
||||
& d_diag_solver_descr, d_diag_solver_sizeof
|
||||
|
||||
|
||||
contains
|
||||
|
||||
subroutine d_diag_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
|
||||
use psb_base_mod
|
||||
type(psb_desc_type), intent(in) :: desc_data
|
||||
class(mld_d_diag_solver_type), intent(in) :: sv
|
||||
real(psb_dpk_),intent(in) :: x(:)
|
||||
real(psb_dpk_),intent(inout) :: y(:)
|
||||
real(psb_dpk_),intent(in) :: alpha,beta
|
||||
character(len=1),intent(in) :: trans
|
||||
real(psb_dpk_),target, intent(inout) :: work(:)
|
||||
integer, intent(out) :: info
|
||||
|
||||
integer :: n_row,n_col
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act
|
||||
character :: trans_
|
||||
character(len=20) :: name='d_diag_solver_apply'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
|
||||
trans_ = psb_toupper(trans)
|
||||
select case(trans_)
|
||||
case('N')
|
||||
case('T','C')
|
||||
case default
|
||||
call psb_errpush(40,name)
|
||||
goto 9999
|
||||
end select
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_data)
|
||||
n_col = psb_cd_get_local_cols(desc_data)
|
||||
|
||||
if (beta == dzero) then
|
||||
|
||||
if (alpha == dzero) then
|
||||
y(1:n_row) = dzero
|
||||
else if (alpha == done) then
|
||||
do i=1, n_row
|
||||
y(i) = sv%d(i) * x(i)
|
||||
end do
|
||||
else if (alpha == -done) then
|
||||
do i=1, n_row
|
||||
y(i) = -sv%d(i) * x(i)
|
||||
end do
|
||||
else
|
||||
do i=1, n_row
|
||||
y(i) = alpha * sv%d(i) * x(i)
|
||||
end do
|
||||
end if
|
||||
|
||||
else if (beta == done) then
|
||||
|
||||
if (alpha == dzero) then
|
||||
!y(1:n_row) = dzero
|
||||
else if (alpha == done) then
|
||||
do i=1, n_row
|
||||
y(i) = sv%d(i) * x(i) + y(i)
|
||||
end do
|
||||
else if (alpha == -done) then
|
||||
do i=1, n_row
|
||||
y(i) = -sv%d(i) * x(i) + y(i)
|
||||
end do
|
||||
else
|
||||
do i=1, n_row
|
||||
y(i) = alpha * sv%d(i) * x(i) + y(i)
|
||||
end do
|
||||
end if
|
||||
|
||||
else if (beta == -done) then
|
||||
|
||||
if (alpha == dzero) then
|
||||
y(1:n_row) = -y(1:n_row)
|
||||
else if (alpha == done) then
|
||||
do i=1, n_row
|
||||
y(i) = sv%d(i) * x(i) - y(i)
|
||||
end do
|
||||
else if (alpha == -done) then
|
||||
do i=1, n_row
|
||||
y(i) = -sv%d(i) * x(i) - y(i)
|
||||
end do
|
||||
else
|
||||
do i=1, n_row
|
||||
y(i) = alpha * sv%d(i) * x(i) - y(i)
|
||||
end do
|
||||
end if
|
||||
|
||||
else
|
||||
|
||||
if (alpha == dzero) then
|
||||
y(1:n_row) = beta *y(1:n_row)
|
||||
else if (alpha == done) then
|
||||
do i=1, n_row
|
||||
y(i) = sv%d(i) * x(i) + beta*y(i)
|
||||
end do
|
||||
else if (alpha == -done) then
|
||||
do i=1, n_row
|
||||
y(i) = -sv%d(i) * x(i) + beta*y(i)
|
||||
end do
|
||||
else
|
||||
do i=1, n_row
|
||||
y(i) = alpha * sv%d(i) * x(i) + beta*y(i)
|
||||
end do
|
||||
end if
|
||||
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
|
||||
end subroutine d_diag_solver_apply
|
||||
|
||||
subroutine d_diag_solver_bld(a,desc_a,sv,upd,info,b)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
type(psb_d_sparse_mat), intent(in), target :: a
|
||||
Type(psb_desc_type), Intent(in) :: desc_a
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
character, intent(in) :: upd
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat), intent(in), target, optional :: b
|
||||
! Local variables
|
||||
integer :: n_row,n_col, nrow_a, nztota
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
||||
character(len=20) :: name='d_diag_solver_bld', ch_err
|
||||
|
||||
info=0
|
||||
call psb_erractionsave(err_act)
|
||||
debug_unit = psb_get_debug_unit()
|
||||
debug_level = psb_get_debug_level()
|
||||
ictxt = psb_cd_get_context(desc_a)
|
||||
call psb_info(ictxt, me, np)
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' start'
|
||||
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_a)
|
||||
nrow_a = a%get_nrows()
|
||||
if (allocated(sv%d)) then
|
||||
if (size(sv%d) < n_row) then
|
||||
deallocate(sv%d)
|
||||
endif
|
||||
endif
|
||||
if (.not.allocated(sv%d)) then
|
||||
allocate(sv%d(n_row),stat=info)
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='Allocate')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
endif
|
||||
|
||||
call a%get_diag(sv%d,info)
|
||||
if (present(b)) then
|
||||
if (info ==0) call b%get_diag(sv%d(nrow_a+1:), info)
|
||||
end if
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='get_diag')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
do i=1,n_row
|
||||
if (sv%d(i) == dzero) then
|
||||
sv%d(i) = done
|
||||
else
|
||||
sv%d(i) = done/sv%d(i)
|
||||
end if
|
||||
end do
|
||||
|
||||
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' end'
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_diag_solver_bld
|
||||
|
||||
|
||||
subroutine d_diag_solver_seti(sv,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
integer, intent(in) :: what
|
||||
integer, intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_diag_solver_seti'
|
||||
|
||||
info = 0
|
||||
!!$ call psb_erractionsave(err_act)
|
||||
!!$
|
||||
!!$ select case(what)
|
||||
!!$ case(mld_sub_solve_)
|
||||
!!$ sv%fact_type = val
|
||||
!!$ case(mld_sub_fillin_)
|
||||
!!$ sv%fill_in = val
|
||||
!!$ case default
|
||||
!!$ write(0,*) name,': Error: invalid WHAT'
|
||||
!!$ info = -2
|
||||
!!$ end select
|
||||
!!$
|
||||
!!$ call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_diag_solver_seti
|
||||
|
||||
subroutine d_diag_solver_setc(sv,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
integer, intent(in) :: what
|
||||
character(len=*), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, ival
|
||||
character(len=20) :: name='d_diag_solver_setc'
|
||||
|
||||
info = 0
|
||||
!!$ call psb_erractionsave(err_act)
|
||||
!!$
|
||||
!!$
|
||||
!!$ call mld_stringval(val,ival,info)
|
||||
!!$ if (info == 0) call sv%set(what,ival,info)
|
||||
!!$ if (info /= 0) then
|
||||
!!$ info = 4010
|
||||
!!$ call psb_errpush(info, name)
|
||||
!!$ goto 9999
|
||||
!!$ end if
|
||||
!!$
|
||||
!!$ call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_diag_solver_setc
|
||||
|
||||
subroutine d_diag_solver_setr(sv,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
integer, intent(in) :: what
|
||||
real(psb_dpk_), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_diag_solver_setr'
|
||||
|
||||
info = 0
|
||||
!!$ call psb_erractionsave(err_act)
|
||||
!!$
|
||||
!!$ select case(what)
|
||||
!!$ case(mld_sub_iluthrs_)
|
||||
!!$ sv%thresh = val
|
||||
!!$ case default
|
||||
!!$ write(0,*) name,': Error: invalid WHAT'
|
||||
!!$ info = -2
|
||||
!!$ goto 9999
|
||||
!!$ end select
|
||||
!!$
|
||||
!!$ call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_diag_solver_setr
|
||||
|
||||
subroutine d_diag_solver_free(sv,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_diag_solver_free'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
if (allocated(sv%d)) then
|
||||
deallocate(sv%d,stat=info)
|
||||
if (info /= 0) then
|
||||
info = 4000
|
||||
call psb_errpush(info,name)
|
||||
goto 9999
|
||||
end if
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_diag_solver_free
|
||||
|
||||
subroutine d_diag_solver_descr(sv,info,iout)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
integer, intent(out) :: info
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
! Local variables
|
||||
integer :: err_act
|
||||
integer :: ictxt, me, np
|
||||
character(len=20), parameter :: name='mld_d_diag_solver_descr'
|
||||
integer :: iout_
|
||||
|
||||
info = 0
|
||||
if (present(iout)) then
|
||||
iout_ = iout
|
||||
else
|
||||
iout_ = 6
|
||||
endif
|
||||
|
||||
write(iout_,*) ' Diagonal local solver '
|
||||
|
||||
return
|
||||
|
||||
end subroutine d_diag_solver_descr
|
||||
|
||||
function d_diag_solver_sizeof(sv) result(val)
|
||||
use psb_base_mod
|
||||
implicit none
|
||||
! Arguments
|
||||
class(mld_d_diag_solver_type), intent(inout) :: sv
|
||||
integer(psb_long_int_k_) :: val
|
||||
integer :: i
|
||||
|
||||
val = 0
|
||||
if (allocated(sv%d)) val = val + psb_sizeof_dp * size(sv%d)
|
||||
|
||||
return
|
||||
end function d_diag_solver_sizeof
|
||||
|
||||
end module mld_d_diag_solver
|
||||
@ -0,0 +1,605 @@
|
||||
!!$
|
||||
!!$
|
||||
!!$ MLD2P4 version 2.0
|
||||
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
||||
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
|
||||
!!$
|
||||
!!$ (C) Copyright 2008,2009, 2010
|
||||
!!$
|
||||
!!$ Salvatore Filippone University of Rome Tor Vergata
|
||||
!!$ Alfredo Buttari University of Rome Tor Vergata
|
||||
!!$ 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.
|
||||
!!$
|
||||
!!$
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
|
||||
module mld_d_ilu_solver
|
||||
|
||||
use mld_d_prec_type
|
||||
|
||||
type, extends(mld_d_base_solver_type) :: mld_d_ilu_solver_type
|
||||
type(psb_d_sparse_mat) :: l, u
|
||||
real(psb_dpk_), allocatable :: d(:)
|
||||
integer :: fact_type, fill_in
|
||||
real(psb_dpk_) :: thresh
|
||||
contains
|
||||
procedure, pass(sv) :: build => d_ilu_solver_bld
|
||||
procedure, pass(sv) :: apply => d_ilu_solver_apply
|
||||
procedure, pass(sv) :: free => d_ilu_solver_free
|
||||
procedure, pass(sv) :: seti => d_ilu_solver_seti
|
||||
procedure, pass(sv) :: setc => d_ilu_solver_setc
|
||||
procedure, pass(sv) :: setr => d_ilu_solver_setr
|
||||
procedure, pass(sv) :: descr => d_ilu_solver_descr
|
||||
procedure, pass(sv) :: sizeof => d_ilu_solver_sizeof
|
||||
end type mld_d_ilu_solver_type
|
||||
|
||||
|
||||
private :: d_ilu_solver_bld, d_ilu_solver_apply, &
|
||||
& d_ilu_solver_free, d_ilu_solver_seti, &
|
||||
& d_ilu_solver_setc, d_ilu_solver_setr,&
|
||||
& d_ilu_solver_descr, d_ilu_solver_sizeof
|
||||
|
||||
|
||||
interface mld_ilu0_fact
|
||||
subroutine mld_dilu0_fact(ialg,a,l,u,d,info,blck,upd)
|
||||
use psb_base_mod, only : psb_d_sparse_mat, psb_dpk_
|
||||
integer, intent(in) :: ialg
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat),intent(in) :: a
|
||||
type(psb_d_sparse_mat),intent(inout) :: l,u
|
||||
type(psb_d_sparse_mat),intent(in), optional, target :: blck
|
||||
character, intent(in), optional :: upd
|
||||
real(psb_dpk_), intent(inout) :: d(:)
|
||||
end subroutine mld_dilu0_fact
|
||||
end interface
|
||||
|
||||
interface mld_iluk_fact
|
||||
subroutine mld_diluk_fact(fill_in,ialg,a,l,u,d,info,blck)
|
||||
use psb_base_mod, only : psb_d_sparse_mat, psb_dpk_
|
||||
integer, intent(in) :: fill_in,ialg
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat),intent(in) :: a
|
||||
type(psb_d_sparse_mat),intent(inout) :: l,u
|
||||
type(psb_d_sparse_mat),intent(in), optional, target :: blck
|
||||
real(psb_dpk_), intent(inout) :: d(:)
|
||||
end subroutine mld_diluk_fact
|
||||
end interface
|
||||
|
||||
interface mld_ilut_fact
|
||||
subroutine mld_dilut_fact(fill_in,thres,a,l,u,d,info,blck)
|
||||
use psb_base_mod, only : psb_d_sparse_mat, psb_dpk_
|
||||
integer, intent(in) :: fill_in
|
||||
real(psb_dpk_), intent(in) :: thres
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat),intent(in) :: a
|
||||
type(psb_d_sparse_mat),intent(inout) :: l,u
|
||||
type(psb_d_sparse_mat),intent(in), optional, target :: blck
|
||||
real(psb_dpk_), intent(inout) :: d(:)
|
||||
end subroutine mld_dilut_fact
|
||||
end interface
|
||||
|
||||
character(len=15), parameter, private :: &
|
||||
& fact_names(0:3)=(/'none ','ILU(n) ',&
|
||||
& 'MILU(n) ','ILU(t,n) '/)
|
||||
|
||||
|
||||
contains
|
||||
|
||||
subroutine d_ilu_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
|
||||
use psb_base_mod
|
||||
type(psb_desc_type), intent(in) :: desc_data
|
||||
class(mld_d_ilu_solver_type), intent(in) :: sv
|
||||
real(psb_dpk_),intent(in) :: x(:)
|
||||
real(psb_dpk_),intent(inout) :: y(:)
|
||||
real(psb_dpk_),intent(in) :: alpha,beta
|
||||
character(len=1),intent(in) :: trans
|
||||
real(psb_dpk_),target, intent(inout) :: work(:)
|
||||
integer, intent(out) :: info
|
||||
|
||||
integer :: n_row,n_col
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act
|
||||
character :: trans_
|
||||
character(len=20) :: name='d_ilu_solver_apply'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
|
||||
trans_ = psb_toupper(trans)
|
||||
select case(trans_)
|
||||
case('N')
|
||||
case('T','C')
|
||||
case default
|
||||
call psb_errpush(40,name)
|
||||
goto 9999
|
||||
end select
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_data)
|
||||
n_col = psb_cd_get_local_cols(desc_data)
|
||||
|
||||
if (n_col <= size(work)) then
|
||||
ww => work(1:n_col)
|
||||
if ((4*n_col+n_col) <= size(work)) then
|
||||
aux => work(n_col+1:)
|
||||
else
|
||||
allocate(aux(4*n_col),stat=info)
|
||||
if (info /= 0) then
|
||||
info=4025
|
||||
call psb_errpush(info,name,i_err=(/4*n_col,0,0,0,0/),&
|
||||
& a_err='real(psb_dpk_)')
|
||||
goto 9999
|
||||
end if
|
||||
endif
|
||||
else
|
||||
allocate(ww(n_col),aux(4*n_col),stat=info)
|
||||
if (info /= 0) then
|
||||
info=4025
|
||||
call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
|
||||
& a_err='real(psb_dpk_)')
|
||||
goto 9999
|
||||
end if
|
||||
endif
|
||||
|
||||
select case(trans_)
|
||||
case('N')
|
||||
call psb_spsm(done,sv%l,x,dzero,ww,desc_data,info,&
|
||||
& trans=trans_,scale='L',diag=sv%d,choice=psb_none_,work=aux)
|
||||
|
||||
if (info == 0) call psb_spsm(alpha,sv%u,ww,beta,y,desc_data,info,&
|
||||
& trans=trans_,scale='U',choice=psb_none_, work=aux)
|
||||
|
||||
case('T','C')
|
||||
call psb_spsm(done,sv%u,x,dzero,ww,desc_data,info,&
|
||||
& trans=trans_,scale='L',diag=sv%d,choice=psb_none_,work=aux)
|
||||
if (info == 0) call psb_spsm(alpha,sv%l,ww,beta,y,desc_data,info,&
|
||||
& trans=trans_,scale='U',choice=psb_none_,work=aux)
|
||||
case default
|
||||
call psb_errpush(4001,name,a_err='Invalid TRANS in ILU subsolve')
|
||||
goto 9999
|
||||
end select
|
||||
|
||||
|
||||
if (info /= 0) then
|
||||
|
||||
call psb_errpush(4001,name,a_err='Error in subsolve')
|
||||
goto 9999
|
||||
endif
|
||||
|
||||
if (n_col <= size(work)) then
|
||||
if ((4*n_col+n_col) <= size(work)) then
|
||||
else
|
||||
deallocate(aux)
|
||||
endif
|
||||
else
|
||||
deallocate(ww,aux)
|
||||
endif
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
|
||||
end subroutine d_ilu_solver_apply
|
||||
|
||||
subroutine d_ilu_solver_bld(a,desc_a,sv,upd,info,b)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
type(psb_d_sparse_mat), intent(in), target :: a
|
||||
Type(psb_desc_type), Intent(in) :: desc_a
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
character, intent(in) :: upd
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat), intent(in), target, optional :: b
|
||||
! Local variables
|
||||
integer :: n_row,n_col, nrow_a, nztota
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
||||
character(len=20) :: name='d_ilu_solver_bld', ch_err
|
||||
|
||||
info=0
|
||||
call psb_erractionsave(err_act)
|
||||
debug_unit = psb_get_debug_unit()
|
||||
debug_level = psb_get_debug_level()
|
||||
ictxt = psb_cd_get_context(desc_a)
|
||||
call psb_info(ictxt, me, np)
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' start'
|
||||
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_a)
|
||||
|
||||
if (psb_toupper(upd) == 'F') then
|
||||
nrow_a = a%get_nrows()
|
||||
nztota = a%get_nzeros()
|
||||
if (present(b)) then
|
||||
nztota = nztota + b%get_nzeros()
|
||||
end if
|
||||
|
||||
call sv%l%csall(n_row,n_row,info,nztota)
|
||||
if (info == 0) call sv%u%csall(n_row,n_row,info,nztota)
|
||||
if(info/=0) then
|
||||
info=4010
|
||||
ch_err='psb_sp_all'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
if (allocated(sv%d)) then
|
||||
if (size(sv%d) < n_row) then
|
||||
deallocate(sv%d)
|
||||
endif
|
||||
endif
|
||||
if (.not.allocated(sv%d)) then
|
||||
allocate(sv%d(n_row),stat=info)
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='Allocate')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
endif
|
||||
|
||||
|
||||
select case(sv%fact_type)
|
||||
|
||||
case (mld_ilu_t_)
|
||||
!
|
||||
! ILU(k,t)
|
||||
!
|
||||
select case(sv%fill_in)
|
||||
|
||||
case(:-1)
|
||||
! Error: fill-in <= -1
|
||||
call psb_errpush(30,name,i_err=(/3,sv%fill_in,0,0,0/))
|
||||
goto 9999
|
||||
|
||||
case(0:)
|
||||
! Fill-in >= 0
|
||||
call mld_ilut_fact(sv%fill_in,sv%thresh,&
|
||||
& a, sv%l,sv%u,sv%d,info,blck=b)
|
||||
end select
|
||||
if(info/=0) then
|
||||
info=4010
|
||||
ch_err='mld_ilut_fact'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
case(mld_ilu_n_,mld_milu_n_)
|
||||
!
|
||||
! ILU(k) and MILU(k)
|
||||
!
|
||||
select case(sv%fill_in)
|
||||
case(:-1)
|
||||
! Error: fill-in <= -1
|
||||
call psb_errpush(30,name,i_err=(/3,sv%fill_in,0,0,0/))
|
||||
goto 9999
|
||||
case(0)
|
||||
! Fill-in 0
|
||||
! Separate implementation of ILU(0) for better performance.
|
||||
! There seems to be a problem with the separate implementation of MILU(0),
|
||||
! contained into mld_ilu0_fact. This must be investigated. For the time being,
|
||||
! resort to the implementation of MILU(k) with k=0.
|
||||
if (sv%fact_type == mld_ilu_n_) then
|
||||
call mld_ilu0_fact(sv%fact_type,a,sv%l,sv%u,&
|
||||
& sv%d,info,blck=b,upd=upd)
|
||||
else
|
||||
call mld_iluk_fact(sv%fill_in,sv%fact_type,&
|
||||
& a,sv%l,sv%u,sv%d,info,blck=b)
|
||||
endif
|
||||
case(1:)
|
||||
! Fill-in >= 1
|
||||
! The same routine implements both ILU(k) and MILU(k)
|
||||
call mld_iluk_fact(sv%fill_in,sv%fact_type,&
|
||||
& a,sv%l,sv%u,sv%d,info,blck=b)
|
||||
end select
|
||||
if (info/=0) then
|
||||
info=4010
|
||||
ch_err='mld_iluk_fact'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
case default
|
||||
! If we end up here, something was wrong up in the call chain.
|
||||
call psb_errpush(4000,name)
|
||||
goto 9999
|
||||
|
||||
end select
|
||||
else
|
||||
! Here we should add checks for reuse of L and U.
|
||||
! For the time being just throw an error.
|
||||
info = 31
|
||||
call psb_errpush(info, name, i_err=(/3,0,0,0,0/),a_err=upd)
|
||||
goto 9999
|
||||
|
||||
!
|
||||
! What is an update of a factorization??
|
||||
! A first attempt could be to reuse EXACTLY the existing indices
|
||||
! as if it was an ILU(0) (since, effectively, the sparsity pattern
|
||||
! should not grow beyond what is already there).
|
||||
!
|
||||
call mld_ilu0_fact(sv%fact_type,a,&
|
||||
& sv%l,sv%u,&
|
||||
& sv%d,info,blck=b,upd=upd)
|
||||
|
||||
end if
|
||||
|
||||
call sv%l%set_asb()
|
||||
call sv%l%trim()
|
||||
call sv%u%set_asb()
|
||||
call sv%u%trim()
|
||||
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' end'
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_ilu_solver_bld
|
||||
|
||||
|
||||
subroutine d_ilu_solver_seti(sv,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
integer, intent(in) :: what
|
||||
integer, intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_ilu_solver_seti'
|
||||
|
||||
info = 0
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
select case(what)
|
||||
case(mld_sub_solve_)
|
||||
sv%fact_type = val
|
||||
case(mld_sub_fillin_)
|
||||
sv%fill_in = val
|
||||
case default
|
||||
write(0,*) name,': Error: invalid WHAT'
|
||||
!!$ info = -2
|
||||
end select
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_ilu_solver_seti
|
||||
|
||||
subroutine d_ilu_solver_setc(sv,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
integer, intent(in) :: what
|
||||
character(len=*), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, ival
|
||||
character(len=20) :: name='d_ilu_solver_setc'
|
||||
|
||||
info = 0
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
|
||||
call mld_stringval(val,ival,info)
|
||||
if (info == 0) call sv%set(what,ival,info)
|
||||
if (info /= 0) then
|
||||
info = 4010
|
||||
call psb_errpush(info, name)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_ilu_solver_setc
|
||||
|
||||
subroutine d_ilu_solver_setr(sv,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
integer, intent(in) :: what
|
||||
real(psb_dpk_), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_ilu_solver_setr'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
select case(what)
|
||||
case(mld_sub_iluthrs_)
|
||||
sv%thresh = val
|
||||
case default
|
||||
write(0,*) name,': Error: invalid WHAT'
|
||||
!!$ info = -2
|
||||
!!$ goto 9999
|
||||
end select
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_ilu_solver_setr
|
||||
|
||||
subroutine d_ilu_solver_free(sv,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_ilu_solver_free'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
if (allocated(sv%d)) then
|
||||
deallocate(sv%d,stat=info)
|
||||
if (info /= 0) then
|
||||
info = 4000
|
||||
call psb_errpush(info,name)
|
||||
goto 9999
|
||||
end if
|
||||
end if
|
||||
call sv%l%free()
|
||||
call sv%u%free()
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_ilu_solver_free
|
||||
|
||||
subroutine d_ilu_solver_descr(sv,info,iout)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
integer, intent(out) :: info
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
! Local variables
|
||||
integer :: err_act
|
||||
integer :: ictxt, me, np
|
||||
character(len=20), parameter :: name='mld_d_ilu_solver_descr'
|
||||
integer :: iout_
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
if (present(iout)) then
|
||||
iout_ = iout
|
||||
else
|
||||
iout_ = 6
|
||||
endif
|
||||
|
||||
write(iout_,*) ' Incomplete factorization solver: ',&
|
||||
& fact_names(sv%fact_type)
|
||||
select case(sv%fact_type)
|
||||
case(mld_ilu_n_,mld_milu_n_)
|
||||
write(iout_,*) ' Fill level:',sv%fill_in
|
||||
case(mld_ilu_t_)
|
||||
write(iout_,*) ' Fill level:',sv%fill_in
|
||||
write(iout_,*) ' Fill threshold :',sv%thresh
|
||||
end select
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_ilu_solver_descr
|
||||
|
||||
function d_ilu_solver_sizeof(sv) result(val)
|
||||
use psb_base_mod
|
||||
implicit none
|
||||
! Arguments
|
||||
class(mld_d_ilu_solver_type), intent(inout) :: sv
|
||||
integer(psb_long_int_k_) :: val
|
||||
integer :: i
|
||||
|
||||
val = 2*psb_sizeof_int + psb_sizeof_dp
|
||||
if (allocated(sv%d)) val = val + psb_sizeof_dp * size(sv%d)
|
||||
val = val + psb_sizeof(sv%l)
|
||||
val = val + psb_sizeof(sv%u)
|
||||
|
||||
return
|
||||
end function d_ilu_solver_sizeof
|
||||
|
||||
end module mld_d_ilu_solver
|
||||
@ -0,0 +1,510 @@
|
||||
!!$
|
||||
!!$
|
||||
!!$ MLD2P4 version 2.0
|
||||
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
||||
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
|
||||
!!$
|
||||
!!$ (C) Copyright 2008,2009, 2010
|
||||
!!$
|
||||
!!$ Salvatore Filippone University of Rome Tor Vergata
|
||||
!!$ Alfredo Buttari University of Rome Tor Vergata
|
||||
!!$ 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.
|
||||
!!$
|
||||
!!$
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
module mld_d_jac_smoother
|
||||
|
||||
use mld_d_prec_type
|
||||
|
||||
type, extends(mld_d_base_smoother_type) :: mld_d_jac_smoother_type
|
||||
! The local solver component is inherited from the
|
||||
! parent type.
|
||||
! class(mld_d_base_solver_type), allocatable :: sv
|
||||
!
|
||||
type(psb_d_sparse_mat) :: nd
|
||||
integer :: sweeps
|
||||
contains
|
||||
procedure, pass(sm) :: build => d_jac_smoother_bld
|
||||
procedure, pass(sm) :: apply => d_jac_smoother_apply
|
||||
procedure, pass(sm) :: free => d_jac_smoother_free
|
||||
procedure, pass(sm) :: seti => d_jac_smoother_seti
|
||||
procedure, pass(sm) :: setc => d_jac_smoother_setc
|
||||
procedure, pass(sm) :: setr => d_jac_smoother_setr
|
||||
procedure, pass(sm) :: descr => d_jac_smoother_descr
|
||||
procedure, pass(sm) :: sizeof => d_jac_smoother_sizeof
|
||||
end type mld_d_jac_smoother_type
|
||||
|
||||
|
||||
private :: d_jac_smoother_bld, d_jac_smoother_apply, &
|
||||
& d_jac_smoother_free, d_jac_smoother_seti, &
|
||||
& d_jac_smoother_setc, d_jac_smoother_setr,&
|
||||
& d_jac_smoother_descr, d_jac_smoother_sizeof
|
||||
|
||||
|
||||
|
||||
contains
|
||||
|
||||
subroutine d_jac_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,work,info)
|
||||
use psb_base_mod
|
||||
type(psb_desc_type), intent(in) :: desc_data
|
||||
class(mld_d_jac_smoother_type), intent(in) :: sm
|
||||
real(psb_dpk_),intent(in) :: x(:)
|
||||
real(psb_dpk_),intent(inout) :: y(:)
|
||||
real(psb_dpk_),intent(in) :: alpha,beta
|
||||
character(len=1),intent(in) :: trans
|
||||
real(psb_dpk_),target, intent(inout) :: work(:)
|
||||
integer, intent(out) :: info
|
||||
|
||||
integer :: n_row,n_col
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act
|
||||
character :: trans_
|
||||
character(len=20) :: name='d_jac_smoother_apply'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
info = 0
|
||||
|
||||
trans_ = psb_toupper(trans)
|
||||
select case(trans_)
|
||||
case('N')
|
||||
case('T','C')
|
||||
case default
|
||||
call psb_errpush(40,name)
|
||||
goto 9999
|
||||
end select
|
||||
|
||||
if (.not.allocated(sm%sv)) then
|
||||
info = 1121
|
||||
call psb_errpush(info,name)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_data)
|
||||
n_col = psb_cd_get_local_cols(desc_data)
|
||||
|
||||
if (n_col <= size(work)) then
|
||||
ww => work(1:n_col)
|
||||
if ((4*n_col+n_col) <= size(work)) then
|
||||
aux => work(n_col+1:)
|
||||
else
|
||||
allocate(aux(4*n_col),stat=info)
|
||||
if (info /= 0) then
|
||||
info=4025
|
||||
call psb_errpush(info,name,i_err=(/4*n_col,0,0,0,0/),&
|
||||
& a_err='real(psb_dpk_)')
|
||||
goto 9999
|
||||
end if
|
||||
endif
|
||||
else
|
||||
allocate(ww(n_col),aux(4*n_col),stat=info)
|
||||
if (info /= 0) then
|
||||
info=4025
|
||||
call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
|
||||
& a_err='real(psb_dpk_)')
|
||||
goto 9999
|
||||
end if
|
||||
endif
|
||||
|
||||
if (sm%sweeps == 1) then
|
||||
|
||||
call sm%sv%apply(alpha,x,beta,y,desc_data,trans_,aux,info)
|
||||
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4001,name,a_err='Error in sub_aply Jacobi Sweeps = 1')
|
||||
goto 9999
|
||||
endif
|
||||
|
||||
else if (sm%sweeps > 1) then
|
||||
|
||||
!
|
||||
!
|
||||
! Apply prec%iprcparm(mld_smoother_sweeps_) sweeps of a block-Jacobi solver
|
||||
! to compute an approximate solution of a linear system.
|
||||
!
|
||||
!
|
||||
allocate(tx(n_col),ty(n_col),stat=info)
|
||||
if (info /= 0) then
|
||||
info=4025
|
||||
call psb_errpush(info,name,i_err=(/2*n_col,0,0,0,0/),&
|
||||
& a_err='real(psb_dpk_)')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
tx = dzero
|
||||
ty = dzero
|
||||
do i=1, sm%sweeps
|
||||
!
|
||||
! Compute Y(j+1) = D^(-1)*(X-ND*Y(j)), where D and ND are the
|
||||
! block diagonal part and the remaining part of the local matrix
|
||||
! and Y(j) is the approximate solution at sweep j.
|
||||
!
|
||||
ty(1:n_row) = x(1:n_row)
|
||||
call psb_spmm(-done,sm%nd,tx,done,ty,desc_data,info,work=aux,trans=trans_)
|
||||
|
||||
if (info /=0) exit
|
||||
|
||||
call sm%sv%apply(done,ty,dzero,tx,desc_data,trans_,aux,info)
|
||||
|
||||
if (info /=0) exit
|
||||
end do
|
||||
|
||||
if (info == 0) call psb_geaxpby(alpha,tx,beta,y,desc_data,info)
|
||||
|
||||
if (info /= 0) then
|
||||
info=4001
|
||||
call psb_errpush(info,name,a_err='subsolve with Jacobi sweeps > 1')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
deallocate(tx,ty,stat=info)
|
||||
if (info /= 0) then
|
||||
info=4001
|
||||
call psb_errpush(info,name,a_err='final cleanup with Jacobi sweeps > 1')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
else
|
||||
|
||||
info = 10
|
||||
call psb_errpush(info,name,&
|
||||
& i_err=(/2,sm%sweeps,0,0,0/))
|
||||
goto 9999
|
||||
|
||||
endif
|
||||
|
||||
|
||||
if (n_col <= size(work)) then
|
||||
if ((4*n_col+n_col) <= size(work)) then
|
||||
else
|
||||
deallocate(aux)
|
||||
endif
|
||||
else
|
||||
deallocate(ww,aux)
|
||||
endif
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
|
||||
end subroutine d_jac_smoother_apply
|
||||
|
||||
subroutine d_jac_smoother_bld(a,desc_a,sm,upd,info,b)
|
||||
|
||||
use psb_base_mod
|
||||
use mld_d_diag_solver
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
type(psb_d_sparse_mat), intent(in), target :: a
|
||||
Type(psb_desc_type), Intent(in) :: desc_a
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
character, intent(in) :: upd
|
||||
integer, intent(out) :: info
|
||||
type(psb_d_sparse_mat), intent(in), target, optional :: b
|
||||
! Local variables
|
||||
integer :: n_row,n_col, nrow_a, nztota
|
||||
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
||||
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
||||
character(len=20) :: name='d_jac_smoother_bld', ch_err
|
||||
|
||||
info=0
|
||||
call psb_erractionsave(err_act)
|
||||
debug_unit = psb_get_debug_unit()
|
||||
debug_level = psb_get_debug_level()
|
||||
ictxt = psb_cd_get_context(desc_a)
|
||||
call psb_info(ictxt, me, np)
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' start'
|
||||
|
||||
|
||||
n_row = psb_cd_get_local_rows(desc_a)
|
||||
|
||||
nrow_a = a%get_nrows()
|
||||
nztota = a%get_nzeros()
|
||||
select type (smsv => sm%sv)
|
||||
type is (mld_d_diag_solver_type)
|
||||
call a%clip_diag(sm%nd,info)
|
||||
class default
|
||||
call a%csclip(sm%nd,info,&
|
||||
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
|
||||
end select
|
||||
if (info == 0) call sm%nd%cscnv(info,&
|
||||
& type='csr',dupl=psb_dupl_add_)
|
||||
if (info == 0) &
|
||||
& call sm%sv%build(a,desc_a,upd,info,b)
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='clip & psb_spcnv csr 4')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
if (debug_level >= psb_debug_outer_) &
|
||||
& write(debug_unit,*) me,' ',trim(name),' end'
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
|
||||
end subroutine d_jac_smoother_bld
|
||||
|
||||
|
||||
subroutine d_jac_smoother_seti(sm,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
integer, intent(in) :: what
|
||||
integer, intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_jac_smoother_seti'
|
||||
|
||||
info = 0
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
select case(what)
|
||||
case(mld_smoother_sweeps_)
|
||||
sm%sweeps = val
|
||||
case default
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%set(what,val,info)
|
||||
else
|
||||
write(0,*) trim(name),' Missing component, not setting!'
|
||||
info = 1121
|
||||
end if
|
||||
end select
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_jac_smoother_seti
|
||||
|
||||
subroutine d_jac_smoother_setc(sm,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
integer, intent(in) :: what
|
||||
character(len=*), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act, ival
|
||||
character(len=20) :: name='d_jac_smoother_setc'
|
||||
|
||||
info = 0
|
||||
call psb_erractionsave(err_act)
|
||||
|
||||
|
||||
call mld_stringval(val,ival,info)
|
||||
if (info == 0) call sm%set(what,ival,info)
|
||||
if (info /= 0) then
|
||||
info = 4010
|
||||
call psb_errpush(info, name)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_jac_smoother_setc
|
||||
|
||||
subroutine d_jac_smoother_setr(sm,what,val,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
integer, intent(in) :: what
|
||||
real(psb_dpk_), intent(in) :: val
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_jac_smoother_setr'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%set(what,val,info)
|
||||
else
|
||||
write(0,*) trim(name),' Missing component, not setting!'
|
||||
info = 1121
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_jac_smoother_setr
|
||||
|
||||
subroutine d_jac_smoother_free(sm,info)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
integer, intent(out) :: info
|
||||
Integer :: err_act
|
||||
character(len=20) :: name='d_jac_smoother_free'
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
|
||||
|
||||
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%free(info)
|
||||
if (info == 0) deallocate(sm%sv,stat=info)
|
||||
if (info /= 0) then
|
||||
info = 4000
|
||||
call psb_errpush(info,name)
|
||||
goto 9999
|
||||
end if
|
||||
end if
|
||||
call sm%nd%free()
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_jac_smoother_free
|
||||
|
||||
subroutine d_jac_smoother_descr(sm,info,iout)
|
||||
|
||||
use psb_base_mod
|
||||
|
||||
Implicit None
|
||||
|
||||
! Arguments
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
integer, intent(out) :: info
|
||||
integer, intent(in), optional :: iout
|
||||
|
||||
! Local variables
|
||||
integer :: err_act
|
||||
integer :: ictxt, me, np
|
||||
character(len=20), parameter :: name='mld_d_jac_smoother_descr'
|
||||
integer :: iout_
|
||||
|
||||
call psb_erractionsave(err_act)
|
||||
info = 0
|
||||
if (present(iout)) then
|
||||
iout_ = iout
|
||||
else
|
||||
iout_ = 6
|
||||
endif
|
||||
|
||||
write(iout_,*) ' Block Jacobi smoother with ',&
|
||||
& sm%sweeps,' sweeps.'
|
||||
write(iout_,*) ' Local solver:'
|
||||
if (allocated(sm%sv)) then
|
||||
call sm%sv%descr(info,iout_)
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == psb_act_abort_) then
|
||||
call psb_error()
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine d_jac_smoother_descr
|
||||
|
||||
function d_jac_smoother_sizeof(sm) result(val)
|
||||
use psb_base_mod
|
||||
implicit none
|
||||
! Arguments
|
||||
class(mld_d_jac_smoother_type), intent(inout) :: sm
|
||||
integer(psb_long_int_k_) :: val
|
||||
integer :: i
|
||||
|
||||
val = psb_sizeof_int
|
||||
if (allocated(sm%sv)) val = val + sm%sv%sizeof()
|
||||
val = val + sm%nd%sizeof()
|
||||
|
||||
return
|
||||
end function d_jac_smoother_sizeof
|
||||
|
||||
end module mld_d_jac_smoother
|
||||
Loading…
Reference in New Issue