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1159 lines
34 KiB
Fortran
1159 lines
34 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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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 PSBLAS 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 PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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subroutine psb_s_bjac_dump(prec,info,prefix,head)
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use psb_base_mod
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use psb_s_bjacprec, psb_protect_name => psb_s_bjac_dump
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implicit none
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class(psb_s_bjac_prec_type), intent(in) :: prec
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integer(psb_ipk_), intent(out) :: info
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character(len=*), intent(in), optional :: prefix,head
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integer(psb_ipk_) :: i, j, il1, iln, lname, lev
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: iam, np
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character(len=80) :: prefix_
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character(len=120) :: fname ! len should be at least 20 more than
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! len of prefix_
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info = 0
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ctxt = prec%get_ctxt()
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call psb_info(ctxt,iam,np)
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if (present(prefix)) then
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prefix_ = trim(prefix(1:min(len(prefix),len(prefix_))))
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else
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prefix_ = "dump_fact_s"
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end if
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lname = len_trim(prefix_)
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fname = trim(prefix_)
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write(fname(lname+1:lname+5),'(a,i3.3)') '_p',iam
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lname = lname + 5
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write(fname(lname+1:),'(a)')'_lower.mtx'
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if (prec%av(psb_l_pr_)%is_asb()) &
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& call prec%av(psb_l_pr_)%print(fname,head=head)
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write(fname(lname+1:),'(a,a)')'_diag.mtx'
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if (allocated(prec%dv)) &
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& call psb_geprt(fname,prec%dv%v%v,head=head)
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write(fname(lname+1:),'(a)')'_upper.mtx'
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if (prec%av(psb_u_pr_)%is_asb()) &
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& call prec%av(psb_u_pr_)%print(fname,head=head)
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end subroutine psb_s_bjac_dump
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subroutine psb_s_bjac_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
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use psb_base_mod
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use psb_s_bjacprec, psb_protect_name => psb_s_bjac_apply_vect
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_s_bjac_prec_type), intent(inout) :: prec
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real(psb_spk_),intent(in) :: alpha,beta
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type(psb_s_vect_type),intent(inout) :: x
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type(psb_s_vect_type),intent(inout) :: y
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integer(psb_ipk_), intent(out) :: info
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character(len=1), optional :: trans
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real(psb_spk_),intent(inout), optional, target :: work(:)
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! Local variables
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integer(psb_ipk_) :: n_row,n_col
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real(psb_spk_), pointer :: ww(:), aux(:)
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type(psb_s_vect_type) :: wv, wv1
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: np,me
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integer(psb_ipk_) :: err_act, ierr(5)
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integer(psb_ipk_) :: debug_level, debug_unit
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logical :: do_alloc_wrk
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character :: trans_
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character(len=20) :: name='s_bjac_prec_apply'
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character(len=20) :: ch_err
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info = psb_success_
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ctxt = desc_data%get_context()
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call psb_info(ctxt, me, np)
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trans_ = psb_toupper(trans)
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select case(trans_)
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case('N','T','C')
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! Ok
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case default
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call psb_errpush(psb_err_iarg_invalid_i_,name)
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goto 9999
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end select
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n_row = desc_data%get_local_rows()
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n_col = desc_data%get_local_cols()
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if (x%get_nrows() < n_row) then
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info = 36; ierr(1) = 2; ierr(2) = n_row;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (y%get_nrows() < n_row) then
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info = 36; ierr(1) = 3; ierr(2) = n_row;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (.not.allocated(prec%dv)) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner: D")
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goto 9999
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end if
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if (prec%dv%get_nrows() < n_row) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner: D")
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goto 9999
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end if
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if (n_col <= size(work)) then
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ww => work(1:n_col)
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if ((4*n_col+n_col) <= size(work)) then
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aux => work(n_col+1:)
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else
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allocate(aux(4*n_col),stat=info)
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endif
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else
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allocate(ww(n_col),aux(4*n_col),stat=info)
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endif
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
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goto 9999
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end if
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do_alloc_wrk = .not.prec%is_allocated_wrk()
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if (do_alloc_wrk) call prec%allocate_wrk(info,vmold=x%v)
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associate (wv => prec%wrk(1), wv1 => prec%wrk(2))
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select case(prec%iprcparm(psb_f_type_))
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case(psb_f_ilu_n_,psb_f_ilu_k_,psb_f_ilu_t_)
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select case(trans_)
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case('N')
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call psb_spsm(sone,prec%av(psb_l_pr_),x,szero,wv,desc_data,info,&
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& trans=trans_,scale='L',diag=prec%dv,choice=psb_none_,work=aux)
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if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_u_pr_),wv,&
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& beta,y,desc_data,info,&
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& trans=trans_,scale='U',choice=psb_none_, work=aux)
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case('T')
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call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,wv,desc_data,info,&
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& trans=trans_,scale='L',diag=prec%dv,choice=psb_none_, work=aux)
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if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),wv,&
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& beta,y,desc_data,info,&
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& trans=trans_,scale='U',choice=psb_none_,work=aux)
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case('C')
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call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,wv,desc_data,info,&
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& trans=trans_,scale='U',choice=psb_none_, work=aux)
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call wv1%mlt(sone,prec%dv,wv,szero,info,conjgx=trans_)
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if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),wv1,&
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& beta,y,desc_data,info,&
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& trans=trans_,scale='U',choice=psb_none_,work=aux)
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end select
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if (info /= psb_success_) then
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ch_err="psb_spsm"
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goto 9999
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end if
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case(psb_f_ainv_,psb_f_invt_,psb_f_invk_)
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! Application of approximate inverse preconditioner, just some spmm
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select case(trans_)
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case('N')
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call psb_spmm(sone,prec%av(psb_l_pr_),x,szero,wv,desc_data,info,&
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& trans=trans_,work=aux,doswap=.false.)
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if (info == psb_success_) call wv1%mlt(sone,prec%dv,wv,szero,info)
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if(info == psb_success_) &
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& call psb_spmm(alpha,prec%av(psb_u_pr_),wv1,&
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& beta,y,desc_data,info, trans=trans_, work=aux,doswap=.false.)
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case('T','C')
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call psb_spmm(sone,prec%av(psb_l_pr_),x,szero,wv,desc_data,info,&
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& trans=trans_,work=aux,doswap=.false.)
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if (info == psb_success_) call wv1%mlt(sone,prec%dv,wv,szero,info)
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if (info == psb_success_) &
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& call psb_spmm(alpha,prec%av(psb_u_pr_),wv1, &
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& beta,y,desc_data,info,trans=trans_,work=aux,doswap=.false.)
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end select
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if (info /= psb_success_) then
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ch_err="psb_spsm"
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goto 9999
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end if
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case default
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='Invalid factorization')
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goto 9999
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end select
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end associate
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call psb_halo(y,desc_data,info,data=psb_comm_mov_)
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if (do_alloc_wrk) call prec%free_wrk(info)
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if (n_col <= size(work)) then
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if ((4*n_col+n_col) <= size(work)) then
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else
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deallocate(aux)
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endif
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else
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deallocate(ww,aux)
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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
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call psb_errpush(info,name,i_err=ierr,a_err=ch_err)
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call psb_error_handler(err_act)
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return
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end subroutine psb_s_bjac_apply_vect
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subroutine psb_s_bjac_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
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use psb_base_mod
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use psb_s_bjacprec, psb_protect_name => psb_s_bjac_apply
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_s_bjac_prec_type), intent(inout) :: prec
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real(psb_spk_),intent(in) :: alpha,beta
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real(psb_spk_),intent(inout) :: x(:)
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real(psb_spk_),intent(inout) :: y(:)
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integer(psb_ipk_), intent(out) :: info
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character(len=1), optional :: trans
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real(psb_spk_),intent(inout), optional, target :: work(:)
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! Local variables
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integer(psb_ipk_) :: n_row,n_col
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real(psb_spk_), pointer :: ww(:), aux(:)
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type(psb_d_vect_type) :: tx,ty
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: np,me
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integer(psb_ipk_) :: err_act, ierr(5)
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integer(psb_ipk_) :: debug_level, debug_unit
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character :: trans_
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character(len=20) :: name='s_bjac_prec_apply'
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character(len=20) :: ch_err
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info = psb_success_
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ctxt = desc_data%get_context()
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call psb_info(ctxt, me, np)
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|
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trans_ = psb_toupper(trans)
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select case(trans_)
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case('N','T','C')
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! Ok
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case default
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call psb_errpush(psb_err_iarg_invalid_i_,name)
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goto 9999
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end select
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|
|
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n_row = desc_data%get_local_rows()
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n_col = desc_data%get_local_cols()
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if (size(x) < n_row) then
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info = 36; ierr(1) = 2; ierr(2) = n_row;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (size(y) < n_row) then
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info = 36; ierr(1) = 3; ierr(2) = n_row;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (.not.allocated(prec%dv)) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner: D")
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goto 9999
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end if
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if (prec%dv%get_nrows() < n_row) then
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info = 1124
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call psb_errpush(info,name,a_err="preconditioner: D")
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goto 9999
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end if
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|
|
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if (n_col <= size(work)) then
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ww => work(1:n_col)
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if ((4*n_col+n_col) <= size(work)) then
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aux => work(n_col+1:)
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else
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allocate(aux(4*n_col),stat=info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
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goto 9999
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end if
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|
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endif
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else
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allocate(ww(n_col),aux(4*n_col),stat=info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
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goto 9999
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end if
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endif
|
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|
|
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select case(prec%iprcparm(psb_f_type_))
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case(psb_f_ilu_n_,psb_f_ilu_k_,psb_f_ilu_t_)
|
|
|
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select case(trans_)
|
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case('N')
|
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call psb_spsm(sone,prec%av(psb_l_pr_),x,szero,ww,desc_data,info,&
|
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& trans=trans_,scale='L',diag=prec%dv%v%v,choice=psb_none_,work=aux)
|
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if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_u_pr_),ww,&
|
|
& beta,y,desc_data,info,&
|
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& trans=trans_,scale='U',choice=psb_none_, work=aux)
|
|
|
|
case('T')
|
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call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,ww,desc_data,info,&
|
|
& trans=trans_,scale='L',diag=prec%dv%v%v,choice=psb_none_, work=aux)
|
|
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),ww,&
|
|
& beta,y,desc_data,info,&
|
|
& trans=trans_,scale='U',choice=psb_none_,work=aux)
|
|
|
|
case('C')
|
|
|
|
call psb_spsm(sone,prec%av(psb_u_pr_),x,szero,ww,desc_data,info,&
|
|
& trans=trans_,scale='U',choice=psb_none_, work=aux)
|
|
ww(1:n_row) = ww(1:n_row)*(prec%dv%v%v(1:n_row))
|
|
if(info == psb_success_) call psb_spsm(alpha,prec%av(psb_l_pr_),ww,&
|
|
& beta,y,desc_data,info,&
|
|
& trans=trans_,scale='U',choice=psb_none_,work=aux)
|
|
|
|
end select
|
|
if (info /= psb_success_) then
|
|
ch_err="psb_spsm"
|
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goto 9999
|
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end if
|
|
|
|
case(psb_f_ainv_,psb_f_invt_,psb_f_invk_)
|
|
! Application of approximate inverse preconditioner, just some spmm
|
|
|
|
select case(trans_)
|
|
|
|
case('N')
|
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call psb_spmm(sone,prec%av(psb_l_pr_),x,szero,ww,desc_data,info,&
|
|
& trans=trans_,work=aux,doswap=.false.)
|
|
ww(1:n_row) = ww(1:n_row) * prec%dv%v%v(1:n_row)
|
|
if (info == psb_success_) &
|
|
& call psb_spmm(alpha,prec%av(psb_u_pr_),ww,beta,y,desc_data,info,&
|
|
& trans=trans_,work=aux,doswap=.false.)
|
|
|
|
case('T')
|
|
call psb_spmm(sone,prec%av(psb_u_pr_),x,szero,ww,desc_data,info,&
|
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& trans=trans_,work=aux,doswap=.false.)
|
|
ww(1:n_row) = ww(1:n_row) * prec%dv%v%v(1:n_row)
|
|
if (info == psb_success_) &
|
|
& call psb_spmm(alpha,prec%av(psb_l_pr_),ww,beta,y,desc_data,info,&
|
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& trans=trans_,work=aux,doswap=.false.)
|
|
|
|
case('C')
|
|
call psb_spmm(sone,prec%av(psb_u_pr_),x,szero,ww,desc_data,info,&
|
|
& trans=trans_,work=aux,doswap=.false.)
|
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ww(1:n_row) = ww(1:n_row) * (prec%dv%v%v(1:n_row))
|
|
if (info == psb_success_) &
|
|
& call psb_spmm(alpha,prec%av(psb_l_pr_),ww,beta,y,desc_data,info,&
|
|
& trans=trans_,work=aux,doswap=.false.)
|
|
|
|
end select
|
|
|
|
|
|
case default
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Invalid factorization')
|
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goto 9999
|
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end select
|
|
|
|
call psb_halo(y,desc_data,info,data=psb_comm_mov_)
|
|
|
|
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_errpush(info,name,i_err=ierr,a_err=ch_err)
|
|
call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine psb_s_bjac_apply
|
|
|
|
subroutine psb_s_bjac_precinit(prec,info)
|
|
use psb_base_mod
|
|
use psb_s_bjacprec, psb_protect_name => psb_s_bjac_precinit
|
|
Implicit None
|
|
|
|
class(psb_s_bjac_prec_type),intent(inout) :: prec
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_) :: err_act, nrow
|
|
character(len=20) :: name='s_bjac_precinit'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
call psb_realloc(psb_ifpsz,prec%iprcparm,info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_Errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
call psb_realloc(psb_rfpsz,prec%rprcparm,info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_Errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
|
|
prec%iprcparm(:) = 0
|
|
prec%iprcparm(psb_p_type_) = psb_bjac_
|
|
prec%iprcparm(psb_f_type_) = psb_f_ilu_n_
|
|
prec%iprcparm(psb_ilu_fill_in_) = 0
|
|
prec%iprcparm(psb_ilu_ialg_) = psb_ilu_n_
|
|
prec%iprcparm(psb_ilu_scale_) = psb_ilu_scale_none_
|
|
prec%iprcparm(psb_inv_fillin_) = 0
|
|
prec%iprcparm(psb_ainv_alg_) = psb_ainv_llk_
|
|
|
|
|
|
prec%rprcparm(:) = 0
|
|
prec%rprcparm(psb_fact_eps_) = 1E-1_psb_spk_
|
|
prec%rprcparm(psb_inv_thresh_) = 1E-1_psb_spk_
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine psb_s_bjac_precinit
|
|
|
|
|
|
subroutine psb_s_bjac_precbld(a,desc_a,prec,info,amold,vmold,imold)
|
|
|
|
use psb_base_mod
|
|
use psb_s_ilu_fact_mod
|
|
use psb_s_ainv_fact_mod
|
|
use psb_s_bjacprec, psb_protect_name => psb_s_bjac_precbld
|
|
Implicit None
|
|
|
|
type(psb_sspmat_type), intent(in), target :: a
|
|
type(psb_desc_type), intent(inout), target :: desc_a
|
|
class(psb_s_bjac_prec_type),intent(inout) :: prec
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_s_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_s_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
|
|
! .. Local Scalars ..
|
|
integer(psb_ipk_) :: i, m, ialg, fill_in, iscale, inv_fill, iinvalg
|
|
integer(psb_ipk_) :: ierr(5)
|
|
character :: trans, unitd
|
|
type(psb_sspmat_type), allocatable :: lf, uf
|
|
real(psb_spk_), allocatable :: dd(:)
|
|
real(psb_spk_) :: fact_eps, inv_thresh
|
|
integer(psb_ipk_) :: nztota, err_act, n_row, nrow_a,n_col, nhalo
|
|
type(psb_ctxt_type) :: ctxt
|
|
integer(psb_ipk_) :: np,me
|
|
character(len=20) :: name='s_bjac_precbld'
|
|
character(len=20) :: ch_err
|
|
|
|
|
|
info = psb_success_
|
|
|
|
call psb_erractionsave(err_act)
|
|
if (psb_errstatus_fatal()) then
|
|
info = psb_err_internal_error_ ; goto 9999
|
|
end if
|
|
|
|
ctxt=desc_a%get_ctxt()
|
|
call prec%set_ctxt(ctxt)
|
|
call psb_info(ctxt, me, np)
|
|
|
|
m = a%get_nrows()
|
|
if (m < 0) then
|
|
info = psb_err_iarg_neg_
|
|
ierr(1) = 1; ierr(2) = m
|
|
call psb_errpush(info,name,i_err=ierr)
|
|
goto 9999
|
|
endif
|
|
trans = 'N'
|
|
unitd = 'U'
|
|
|
|
! We check if all the information contained in the preconditioner structure
|
|
! are meaningful, otherwise we give an error and get out of the build
|
|
! procedure
|
|
ialg = prec%iprcparm(psb_ilu_ialg_) ! Integer for ILU type algorithm
|
|
iinvalg = prec%iprcparm(psb_ainv_alg_) ! Integer for AINV type algorithm
|
|
if ((ialg == psb_ilu_n_).or.(ialg == psb_milu_n_).or.&
|
|
& (ialg == psb_ilu_t_).or.(iinvalg == psb_ainv_llk_).or.&
|
|
& (iinvalg == psb_ainv_s_llk_).or.(iinvalg == psb_ainv_s_ft_llk_).or.&
|
|
& (iinvalg == psb_ainv_llk_noth_).or.(iinvalg == psb_ainv_mlk_).or.&
|
|
& (iinvalg == psb_ainv_lmx_)) then
|
|
! Do nothing: admissible request
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilu_ialg_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
iscale = prec%iprcparm(psb_ilu_scale_)
|
|
if ((iscale == psb_ilu_scale_none_).or.&
|
|
(iscale == psb_ilu_scale_maxval_).or.&
|
|
(iscale == psb_ilu_scale_diag_).or.&
|
|
(iscale == psb_ilu_scale_arwsum_).or.&
|
|
(iscale == psb_ilu_scale_aclsum_).or.&
|
|
(iscale == psb_ilu_scale_arcsum_)) then
|
|
! Do nothing: admissible request
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilu_scale_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
fact_eps = prec%rprcparm(psb_fact_eps_)
|
|
if( (fact_eps > 1).and.(prec%iprcparm(psb_f_type_) == psb_f_ainv_) ) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_fact_eps_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
inv_thresh = prec%rprcparm(psb_inv_thresh_)
|
|
if( (inv_thresh > 1) ) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_fact_eps_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
fill_in = prec%iprcparm(psb_ilu_fill_in_)
|
|
if (prec%iprcparm(psb_f_type_) == psb_f_ilu_n_) then
|
|
if(fill_in < 0) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilu_fill_in_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
else if (fill_in == 0) then
|
|
! If the requested level of fill is equal to zero, we default to the
|
|
! specialized ILU(0) routine
|
|
prec%iprcparm(psb_f_type_) = psb_f_ilu_n_
|
|
end if
|
|
end if
|
|
inv_fill = prec%iprcparm(psb_inv_fillin_)
|
|
if (inv_fill <= 0) inv_fill = m ! If no limit on the fill_in is required we allow everything
|
|
! Select on the type of factorization to be used
|
|
select case(prec%iprcparm(psb_f_type_))
|
|
|
|
case(psb_f_ilu_n_)
|
|
! ILU(0) Factorization: the total number of nonzeros of the factorized matrix
|
|
! is equal to the one of the input matrix
|
|
|
|
if (allocated(prec%av)) then
|
|
if (size(prec%av) < psb_bp_ilu_avsz) then
|
|
do i=1,size(prec%av)
|
|
call prec%av(i)%free()
|
|
enddo
|
|
deallocate(prec%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(prec%av)) then
|
|
allocate(prec%av(psb_max_avsz),stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
nrow_a = desc_a%get_local_rows()
|
|
nztota = a%get_nzeros()
|
|
|
|
n_col = desc_a%get_local_cols()
|
|
nhalo = n_col-nrow_a
|
|
n_row = nrow_a
|
|
|
|
allocate(lf,uf,stat=info)
|
|
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
|
|
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sp_all'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
allocate(dd(n_row),stat=info)
|
|
if (info == psb_success_) then
|
|
allocate(prec%dv, stat=info)
|
|
if (info == 0) then
|
|
if (present(vmold)) then
|
|
allocate(prec%dv%v,mold=vmold,stat=info)
|
|
else
|
|
allocate(psb_s_base_vect_type :: prec%dv%v,stat=info)
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
|
|
goto 9999
|
|
endif
|
|
! This is where we have no renumbering, thus no need
|
|
call psb_ilu0_fact(ialg,a,lf,uf,dd,info)
|
|
|
|
if(info == psb_success_) then
|
|
call prec%av(psb_l_pr_)%mv_from(lf%a)
|
|
call prec%av(psb_u_pr_)%mv_from(uf%a)
|
|
call prec%av(psb_l_pr_)%set_asb()
|
|
call prec%av(psb_u_pr_)%set_asb()
|
|
call prec%av(psb_l_pr_)%trim()
|
|
call prec%av(psb_u_pr_)%trim()
|
|
call prec%dv%bld(dd)
|
|
! call move_alloc(dd,prec%d)
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilu0_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_f_ilu_k_)
|
|
! ILU(N) Incomplete LU-factorization with N levels of fill-in. Depending on
|
|
! the type of the variant of the algorithm the may be forgotten or added to
|
|
! the diagonal (MILU)
|
|
|
|
if (allocated(prec%av)) then
|
|
if (size(prec%av) < psb_bp_ilu_avsz) then
|
|
do i=1,size(prec%av)
|
|
call prec%av(i)%free()
|
|
enddo
|
|
deallocate(prec%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(prec%av)) then
|
|
allocate(prec%av(psb_max_avsz),stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
nrow_a = desc_a%get_local_rows()
|
|
nztota = a%get_nzeros()
|
|
|
|
n_col = desc_a%get_local_cols()
|
|
nhalo = n_col-nrow_a
|
|
n_row = nrow_a
|
|
|
|
allocate(lf,uf,stat=info)
|
|
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
|
|
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sp_all'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
allocate(dd(n_row),stat=info)
|
|
if (info == psb_success_) then
|
|
allocate(prec%dv, stat=info)
|
|
if (info == 0) then
|
|
if (present(vmold)) then
|
|
allocate(prec%dv%v,mold=vmold,stat=info)
|
|
else
|
|
allocate(psb_s_base_vect_type :: prec%dv%v,stat=info)
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
|
|
goto 9999
|
|
endif
|
|
! This is where we have no renumbering, thus no need
|
|
call psb_iluk_fact(fill_in,ialg,a,lf,uf,dd,info)
|
|
|
|
if(info == psb_success_) then
|
|
call prec%av(psb_l_pr_)%mv_from(lf%a)
|
|
call prec%av(psb_u_pr_)%mv_from(uf%a)
|
|
call prec%av(psb_l_pr_)%set_asb()
|
|
call prec%av(psb_u_pr_)%set_asb()
|
|
call prec%av(psb_l_pr_)%trim()
|
|
call prec%av(psb_u_pr_)%trim()
|
|
call prec%dv%bld(dd)
|
|
! call move_alloc(dd,prec%d)
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_iluk_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_f_ilu_t_)
|
|
! ILU(N,E) Incomplete LU factorization with thresholding and level of fill
|
|
|
|
if (allocated(prec%av)) then
|
|
if (size(prec%av) < psb_bp_ilu_avsz) then
|
|
do i=1,size(prec%av)
|
|
call prec%av(i)%free()
|
|
enddo
|
|
deallocate(prec%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(prec%av)) then
|
|
allocate(prec%av(psb_max_avsz),stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
nrow_a = desc_a%get_local_rows()
|
|
nztota = a%get_nzeros()
|
|
|
|
n_col = desc_a%get_local_cols()
|
|
nhalo = n_col-nrow_a
|
|
n_row = nrow_a
|
|
|
|
allocate(lf,uf,stat=info)
|
|
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
|
|
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sp_all'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
allocate(dd(n_row),stat=info)
|
|
if (info == psb_success_) then
|
|
allocate(prec%dv, stat=info)
|
|
if (info == 0) then
|
|
if (present(vmold)) then
|
|
allocate(prec%dv%v,mold=vmold,stat=info)
|
|
else
|
|
allocate(psb_s_base_vect_type :: prec%dv%v,stat=info)
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
|
|
goto 9999
|
|
endif
|
|
! This is where we have no renumbering, thus no need
|
|
call psb_ilut_fact(fill_in,fact_eps,a,lf,uf,dd,info,iscale=iscale)
|
|
|
|
if(info == psb_success_) then
|
|
call prec%av(psb_l_pr_)%mv_from(lf%a)
|
|
call prec%av(psb_u_pr_)%mv_from(uf%a)
|
|
call prec%av(psb_l_pr_)%set_asb()
|
|
call prec%av(psb_u_pr_)%set_asb()
|
|
call prec%av(psb_l_pr_)%trim()
|
|
call prec%av(psb_u_pr_)%trim()
|
|
call prec%dv%bld(dd)
|
|
! call move_alloc(dd,prec%d)
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilut_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_f_ainv_)
|
|
! Approximate Inverse Factorizations based on variants of the incomplete
|
|
! biconjugation algorithms
|
|
if (allocated(prec%av)) then
|
|
if (size(prec%av) < psb_bp_ilu_avsz) then
|
|
do i=1,size(prec%av)
|
|
call prec%av(i)%free()
|
|
enddo
|
|
deallocate(prec%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(prec%av)) then
|
|
allocate(prec%av(psb_max_avsz),stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
nrow_a = desc_a%get_local_rows()
|
|
nztota = a%get_nzeros()
|
|
|
|
n_col = desc_a%get_local_cols()
|
|
nhalo = n_col-nrow_a
|
|
n_row = nrow_a
|
|
|
|
allocate(lf,uf,stat=info)
|
|
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
|
|
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sp_all'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
allocate(dd(n_row),stat=info)
|
|
if (info == psb_success_) then
|
|
allocate(prec%dv, stat=info)
|
|
if (info == 0) then
|
|
if (present(vmold)) then
|
|
allocate(prec%dv%v,mold=vmold,stat=info)
|
|
else
|
|
allocate(psb_s_base_vect_type :: prec%dv%v,stat=info)
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
|
|
goto 9999
|
|
endif
|
|
! Computing the factorization
|
|
call psb_ainv_fact(a,iinvalg,inv_fill,inv_thresh,lf,dd,uf,desc_a,info,iscale=iscale)
|
|
|
|
if(info == psb_success_) then
|
|
call prec%av(psb_l_pr_)%mv_from(lf%a)
|
|
call prec%av(psb_u_pr_)%mv_from(uf%a)
|
|
call prec%av(psb_l_pr_)%set_asb()
|
|
call prec%av(psb_u_pr_)%set_asb()
|
|
call prec%av(psb_l_pr_)%trim()
|
|
call prec%av(psb_u_pr_)%trim()
|
|
call prec%dv%bld(dd)
|
|
! call move_alloc(dd,prec%d)
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilut_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_f_invk_)
|
|
! Approximate Inverse Factorizations based on the sparse inversion of
|
|
! triangular factors of an ILU(n) factorization
|
|
if (allocated(prec%av)) then
|
|
if (size(prec%av) < psb_bp_ilu_avsz) then
|
|
do i=1,size(prec%av)
|
|
call prec%av(i)%free()
|
|
enddo
|
|
deallocate(prec%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(prec%av)) then
|
|
allocate(prec%av(psb_max_avsz),stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
nrow_a = desc_a%get_local_rows()
|
|
nztota = a%get_nzeros()
|
|
|
|
n_col = desc_a%get_local_cols()
|
|
nhalo = n_col-nrow_a
|
|
n_row = nrow_a
|
|
|
|
allocate(lf,uf,stat=info)
|
|
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
|
|
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sp_all'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
allocate(dd(n_row),stat=info)
|
|
if (info == psb_success_) then
|
|
allocate(prec%dv, stat=info)
|
|
if (info == 0) then
|
|
if (present(vmold)) then
|
|
allocate(prec%dv%v,mold=vmold,stat=info)
|
|
else
|
|
allocate(psb_s_base_vect_type :: prec%dv%v,stat=info)
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
|
|
goto 9999
|
|
endif
|
|
! Computing the factorization
|
|
call psb_invk_fact(a,fill_in, inv_fill,lf,dd,uf,desc_a,info)
|
|
|
|
if(info == psb_success_) then
|
|
call prec%av(psb_l_pr_)%mv_from(lf%a)
|
|
call prec%av(psb_u_pr_)%mv_from(uf%a)
|
|
call prec%av(psb_l_pr_)%set_asb()
|
|
call prec%av(psb_u_pr_)%set_asb()
|
|
call prec%av(psb_l_pr_)%trim()
|
|
call prec%av(psb_u_pr_)%trim()
|
|
call prec%dv%bld(dd)
|
|
! call move_alloc(dd,prec%d)
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilut_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_f_invt_)
|
|
! Approximate Inverse Factorizations based on the sparse inversion of
|
|
! triangular factors of an ILU(eps) factorization
|
|
if (allocated(prec%av)) then
|
|
if (size(prec%av) < psb_bp_ilu_avsz) then
|
|
do i=1,size(prec%av)
|
|
call prec%av(i)%free()
|
|
enddo
|
|
deallocate(prec%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(prec%av)) then
|
|
allocate(prec%av(psb_max_avsz),stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
|
|
nrow_a = desc_a%get_local_rows()
|
|
nztota = a%get_nzeros()
|
|
|
|
n_col = desc_a%get_local_cols()
|
|
nhalo = n_col-nrow_a
|
|
n_row = nrow_a
|
|
|
|
allocate(lf,uf,stat=info)
|
|
if (info == psb_success_) call lf%allocate(n_row,n_row,nztota)
|
|
if (info == psb_success_) call uf%allocate(n_row,n_row,nztota)
|
|
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sp_all'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
allocate(dd(n_row),stat=info)
|
|
if (info == psb_success_) then
|
|
allocate(prec%dv, stat=info)
|
|
if (info == 0) then
|
|
if (present(vmold)) then
|
|
allocate(prec%dv%v,mold=vmold,stat=info)
|
|
else
|
|
allocate(psb_s_base_vect_type :: prec%dv%v,stat=info)
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
|
|
goto 9999
|
|
endif
|
|
! Computing the factorization
|
|
call psb_invt_fact(a,fill_in,inv_fill,fact_eps,inv_thresh,lf,dd,uf,&
|
|
& desc_a,info)
|
|
|
|
if(info == psb_success_) then
|
|
call prec%av(psb_l_pr_)%mv_from(lf%a)
|
|
call prec%av(psb_u_pr_)%mv_from(uf%a)
|
|
call prec%av(psb_l_pr_)%set_asb()
|
|
call prec%av(psb_u_pr_)%set_asb()
|
|
call prec%av(psb_l_pr_)%trim()
|
|
call prec%av(psb_u_pr_)%trim()
|
|
call prec%dv%bld(dd)
|
|
! call move_alloc(dd,prec%d)
|
|
else
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_ilut_fact'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_f_none_)
|
|
info=psb_err_from_subroutine_
|
|
ch_err='Inconsistent prec psb_f_none_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
|
|
case default
|
|
info=psb_err_from_subroutine_
|
|
ch_err='Unknown psb_f_type_'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end select
|
|
|
|
if (present(amold)) then
|
|
call prec%av(psb_l_pr_)%cscnv(info,mold=amold)
|
|
call prec%av(psb_u_pr_)%cscnv(info,mold=amold)
|
|
end if
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine psb_s_bjac_precbld
|
|
|
|
subroutine psb_s_bjac_precseti(prec,what,val,info)
|
|
|
|
use psb_base_mod
|
|
use psb_s_bjacprec, psb_protect_name => psb_s_bjac_precseti
|
|
Implicit None
|
|
|
|
class(psb_s_bjac_prec_type),intent(inout) :: prec
|
|
integer(psb_ipk_), intent(in) :: what
|
|
integer(psb_ipk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_) :: err_act, nrow
|
|
character(len=20) :: name='s_bjac_precset'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
if (.not.allocated(prec%iprcparm)) then
|
|
info = 1124
|
|
call psb_errpush(info,name,a_err="preconditioner")
|
|
goto 9999
|
|
end if
|
|
|
|
select case(what)
|
|
case (psb_f_type_)
|
|
prec%iprcparm(psb_f_type_) = val
|
|
|
|
case (psb_ilu_fill_in_)
|
|
prec%iprcparm(psb_ilu_fill_in_) = val
|
|
|
|
case (psb_ilu_ialg_)
|
|
prec%iprcparm(psb_ilu_ialg_) = val
|
|
|
|
case (psb_ilu_scale_)
|
|
prec%iprcparm(psb_ilu_scale_) = val
|
|
|
|
case (psb_ainv_alg_)
|
|
prec%iprcparm(psb_ainv_alg_) = val
|
|
|
|
case(psb_inv_fillin_)
|
|
prec%iprcparm(psb_inv_fillin_) = val
|
|
|
|
case default
|
|
write(psb_err_unit,'(i0," is invalid, ignoring user specification")') what
|
|
|
|
end select
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine psb_s_bjac_precseti
|
|
|
|
subroutine psb_s_bjac_precsetr(prec,what,val,info)
|
|
|
|
use psb_base_mod
|
|
use psb_s_bjacprec, psb_protect_name => psb_s_bjac_precsetr
|
|
Implicit None
|
|
|
|
class(psb_s_bjac_prec_type),intent(inout) :: prec
|
|
integer(psb_ipk_), intent(in) :: what
|
|
real(psb_spk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_) :: err_act, nrow
|
|
character(len=20) :: name='s_bjac_precset'
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
info = psb_success_
|
|
if (.not.allocated(prec%rprcparm)) then
|
|
info = 1124
|
|
call psb_errpush(info,name,a_err="preconditioner")
|
|
goto 9999
|
|
end if
|
|
|
|
select case(what)
|
|
|
|
case (psb_fact_eps_)
|
|
prec%rprcparm(psb_fact_eps_) = val
|
|
|
|
case (psb_inv_thresh_)
|
|
prec%rprcparm(psb_inv_thresh_) = val
|
|
|
|
case default
|
|
write(psb_err_unit,'(i0," is invalid, ignoring user specification")') what
|
|
|
|
end select
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine psb_s_bjac_precsetr
|