You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
211 lines
7.3 KiB
Fortran
211 lines
7.3 KiB
Fortran
!!$
|
|
!!$
|
|
!!$ MD2P4
|
|
!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
|
|
!!$ for
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$ Daniela di Serafino Second University of Naples
|
|
!!$ Pasqua D'Ambra ICAR-CNR
|
|
!!$
|
|
!!$ Redistribution and use in source and binary forms, with or without
|
|
!!$ modification, are permitted provided that the following conditions
|
|
!!$ are met:
|
|
!!$ 1. Redistributions of source code must retain the above copyright
|
|
!!$ notice, this list of conditions and the following disclaimer.
|
|
!!$ 2. Redistributions in binary form must reproduce the above copyright
|
|
!!$ notice, this list of conditions, and the following disclaimer in the
|
|
!!$ documentation and/or other materials provided with the distribution.
|
|
!!$ 3. The name of the MD2P4 group or the names of its contributors may
|
|
!!$ not be used to endorse or promote products derived from this
|
|
!!$ software without specific written permission.
|
|
!!$
|
|
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MD2P4 GROUP OR ITS CONTRIBUTORS
|
|
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
!!$ POSSIBILITY OF SUCH DAMAGE.
|
|
!!$
|
|
!!$
|
|
!*****************************************************************************
|
|
!* *
|
|
!* This is where the action takes place. *
|
|
!* ASMATBLD does the setup: building the prec descriptor plus retrieving *
|
|
!* matrix rows if needed *
|
|
!* *
|
|
!* *
|
|
!* *
|
|
!* *
|
|
!* some open code does the renumbering *
|
|
!* *
|
|
!* *
|
|
!* *
|
|
!* *
|
|
!*****************************************************************************
|
|
subroutine psb_zilu_bld(a,desc_a,p,upd,info,blck)
|
|
use psb_base_mod
|
|
use psb_prec_mod, mld_protect_name => psb_zilu_bld
|
|
|
|
implicit none
|
|
!
|
|
! .. Scalar Arguments ..
|
|
integer, intent(out) :: info
|
|
! .. array Arguments ..
|
|
type(psb_zspmat_type), intent(in), target :: a
|
|
type(psb_zbaseprc_type), intent(inout) :: p
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
character, intent(in) :: upd
|
|
type(psb_zspmat_type), intent(in), optional :: blck
|
|
! .. Local Scalars ..
|
|
integer :: i, j, jj, k, kk, m
|
|
integer :: int_err(5)
|
|
character :: trans, unitd
|
|
real(kind(1.d0)) :: t1,t2,t3,t4,t5,t6, t7, t8
|
|
logical, parameter :: debugprt=.false., debug=.false., aggr_dump=.false.
|
|
integer nztota, nztotb, nztmp, nzl, nnr, ir, err_act,&
|
|
& n_row, nrow_a, ind, iind, i1,i2,ia
|
|
integer :: ictxt,np,me
|
|
character(len=20) :: name, ch_err
|
|
|
|
if(psb_get_errstatus().ne.0) return
|
|
info=0
|
|
name='psb_zilu_bld'
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt=psb_cd_get_context(desc_a)
|
|
call psb_info(ictxt, me, np)
|
|
|
|
trans = 'N'
|
|
unitd = 'U'
|
|
|
|
if (allocated(p%av)) then
|
|
if (size(p%av) < bp_ilu_avsz) then
|
|
do i=1,size(p%av)
|
|
call psb_sp_free(p%av(i),info)
|
|
if (info /= 0) then
|
|
! Actually, we don't care here about this.
|
|
! Just let it go.
|
|
! return
|
|
end if
|
|
enddo
|
|
deallocate(p%av,stat=info)
|
|
endif
|
|
end if
|
|
if (.not.allocated(p%av)) then
|
|
allocate(p%av(max_avsz),stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4000,name)
|
|
goto 9999
|
|
end if
|
|
endif
|
|
!!$ call psb_csprt(50+me,a,head='% (A)')
|
|
|
|
nrow_a = psb_cd_get_local_rows(desc_a)
|
|
nztota = psb_sp_get_nnzeros(a)
|
|
if (present(blck)) then
|
|
nztota = nztota + psb_sp_get_nnzeros(blck)
|
|
end if
|
|
if (debug) write(0,*)me,': out get_nnzeros',nztota,a%m,a%k
|
|
if (debug) call psb_barrier(ictxt)
|
|
|
|
n_row = p%desc_data%matrix_data(psb_n_row_)
|
|
p%av(l_pr_)%m = n_row
|
|
p%av(l_pr_)%k = n_row
|
|
p%av(u_pr_)%m = n_row
|
|
p%av(u_pr_)%k = n_row
|
|
call psb_sp_all(n_row,n_row,p%av(l_pr_),nztota,info)
|
|
if (info == 0) call psb_sp_all(n_row,n_row,p%av(u_pr_),nztota,info)
|
|
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(p%d)) then
|
|
if (size(p%d) < n_row) then
|
|
deallocate(p%d)
|
|
endif
|
|
endif
|
|
if (.not.allocated(p%d)) then
|
|
allocate(p%d(n_row),stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
goto 9999
|
|
end if
|
|
|
|
endif
|
|
|
|
|
|
!
|
|
! Ok, factor the matrix.
|
|
!
|
|
t5 = psb_wtime()
|
|
call psb_ilu_fct(a,p%av(l_pr_),p%av(u_pr_),p%d,info,blck=blck)
|
|
if(info/=0) then
|
|
info=4010
|
|
ch_err='psb_ilu_fct'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
|
|
if (debugprt) then
|
|
!
|
|
! Print out the factors on file.
|
|
!
|
|
open(80+me)
|
|
|
|
call psb_csprt(80+me,p%av(l_pr_),head='% Local L factor')
|
|
write(80+me,*) '% Diagonal: ',p%av(l_pr_)%m
|
|
do i=1,p%av(l_pr_)%m
|
|
write(80+me,*) i,i,p%d(i)
|
|
enddo
|
|
call psb_csprt(80+me,p%av(u_pr_),head='% Local U factor')
|
|
|
|
close(80+me)
|
|
endif
|
|
|
|
!!$ call psb_csprt(60+me,a,head='% (A)')
|
|
|
|
|
|
! ierr = MPE_Log_event( ifcte, 0, "st SIMPLE" )
|
|
t6 = psb_wtime()
|
|
!
|
|
! write(0,'(i3,1x,a,3(1x,g18.9))') me,'renum/factor time',t3-t2,t6-t5
|
|
! if (me==0) write(0,'(a,3(1x,g18.9))') 'renum/factor time',t3-t2,t6-t5
|
|
|
|
if (psb_sp_getifld(psb_upd_,p%av(u_pr_),info) /= psb_upd_perm_) then
|
|
call psb_sp_trim(p%av(u_pr_),info)
|
|
endif
|
|
|
|
if (psb_sp_getifld(psb_upd_,p%av(l_pr_),info) /= psb_upd_perm_) then
|
|
call psb_sp_trim(p%av(l_pr_),info)
|
|
endif
|
|
|
|
|
|
if (debug) write(0,*) me,'End of ilu_bld'
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 continue
|
|
call psb_erractionrestore(err_act)
|
|
if (err_act.eq.psb_act_abort_) then
|
|
call psb_error()
|
|
return
|
|
end if
|
|
return
|
|
|
|
|
|
end subroutine psb_zilu_bld
|
|
|
|
|