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psblas3-type-indexed
Salvatore Filippone 19 years ago
parent 9a09cf4904
commit e61b6501b8
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src/prec/psb_dilu_bld.f90
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!!$
!!$
!!$ MPcube: Multilevel Parallel Preconditioners Package
!!$ 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 II 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 MPCUBE 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 MPCUBE 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_dilu_bld(a,desc_a,p,upd,info)
use psb_serial_mod
use psb_const_mod
use psb_prec_type
use psb_descriptor_type
use psb_spmat_type
use psb_tools_mod
use psb_psblas_mod
use psb_error_mod
implicit none
!
! .. Scalar Arguments ..
integer, intent(out) :: info
! .. array Arguments ..
type(psb_dspmat_type), intent(in), target :: a
type(psb_dbase_prec), intent(inout) :: p
type(psb_desc_type), intent(in) :: desc_a
character, intent(in) :: upd
! .. Local Scalars ..
integer :: i, j, jj, k, kk, m
integer :: int_err(5)
character :: trans, unitd
type(psb_dspmat_type) :: blck, atmp
real(kind(1.d0)) :: t1,t2,t3,t4,t5,t6,mpi_wtime, t7, t8
integer, pointer :: itmp(:), itmp2(:)
real(kind(1.d0)), pointer :: rtmp(:)
external mpi_wtime
logical, parameter :: debugprt=.false., debug=.false., aggr_dump=.false.
integer istpb, istpe, ifctb, ifcte, err_act, irank, icomm, nztota, nztotb,&
& nztmp, nzl, nnr, ir, mglob, mtype, n_row, nrow_a,n_col, nhalo,lovr, &
& ind, iind, pi,nr,ns
integer ::icontxt,nprow,npcol,me,mycol
character(len=20) :: name, ch_err
interface psb_ilu_fct
subroutine psb_dilu_fct(a,l,u,d,info,blck)
use psb_spmat_type
integer, intent(out) :: info
type(psb_dspmat_type),intent(in) :: a
type(psb_dspmat_type),intent(inout) :: l,u
type(psb_dspmat_type),intent(in), optional, target :: blck
real(kind(1.d0)), intent(inout) :: d(:)
end subroutine psb_dilu_fct
end interface
interface psb_asmatbld
Subroutine psb_dasmatbld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
use psb_serial_mod
Use psb_descriptor_type
Use psb_prec_type
integer, intent(in) :: ptype,novr
Type(psb_dspmat_type), Intent(in) :: a
Type(psb_dspmat_type), Intent(inout) :: blk
Type(psb_desc_type), Intent(inout) :: desc_p
Type(psb_desc_type), Intent(in) :: desc_data
Character, Intent(in) :: upd
integer, intent(out) :: info
character(len=5), optional :: outfmt
end Subroutine psb_dasmatbld
end interface
interface psb_sp_renum
subroutine psb_dsp_renum(a,desc_a,blck,p,atmp,info)
use psb_prec_type
use psb_descriptor_type
use psb_spmat_type
implicit none
! .. array Arguments ..
type(psb_dspmat_type), intent(in) :: a,blck
type(psb_dspmat_type), intent(inout) :: atmp
type(psb_dbase_prec), intent(inout) :: p
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
end subroutine psb_dsp_renum
end interface
if(psb_get_errstatus().ne.0) return
info=0
name='psb_ilu_bld'
call psb_erractionsave(err_act)
icontxt=desc_a%matrix_data(psb_ctxt_)
call blacs_gridinfo(icontxt,nprow,npcol,me,mycol)
m = a%m
if (m < 0) then
info = 10
int_err(1) = 1
int_err(2) = m
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
trans = 'N'
unitd = 'U'
if (p%iprcparm(n_ovr_) < 0) then
info = 11
int_err(1) = 1
int_err(2) = p%iprcparm(n_ovr_)
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
! call blacs_gridinfo(icontxt,nprow,npcol,me,mycol)
icontxt=desc_a%matrix_data(psb_ctxt_)
call psb_nullify_sp(blck)
t1= mpi_wtime()
if(debug) write(0,*)me,': calling psb_asmatbld',p%iprcparm(p_type_),p%iprcparm(n_ovr_)
call psb_asmatbld(p%iprcparm(p_type_),p%iprcparm(n_ovr_),a,&
& blck,desc_a,upd,p%desc_data,info)
if(info/=0) then
info=4010
ch_err='psb_asmatbld'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
t2= mpi_wtime()
if(debug) write(0,*)me,': out of psb_asmatbld'
if (associated(p%av)) then
if (size(p%av) < bp_ilu_avsz) then
do k=1,size(p%av)
call psb_spfree(p%av(k),info)
end do
deallocate(p%av)
p%av => null()
endif
endif
if (.not.associated(p%av)) then
allocate(p%av(bp_ilu_avsz),stat=info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='Allocate')
goto 9999
end if
endif
do k=1,size(p%av)
call psb_nullify_sp(p%av(k))
end do
nrow_a = desc_a%matrix_data(psb_n_row_)
call psb_spinfo(psb_nztotreq_,a,nztota,info)
if(info/=0) then
info=4010
ch_err='psb_spinfo'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
n_col = desc_a%matrix_data(psb_n_col_)
nhalo = n_col-nrow_a
n_row = p%desc_data%matrix_data(psb_n_row_)
lovr = ((nztota+nrow_a-1)/nrow_a)*nhalo*p%iprcparm(n_ovr_)
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_spall(n_row,n_row,p%av(l_pr_),nztota+lovr,info)
call psb_spall(n_row,n_row,p%av(u_pr_),nztota+lovr,info)
if(info/=0) then
info=4010
ch_err='psb_spall'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (associated(p%d)) then
if (size(p%d) < n_row) then
deallocate(p%d)
endif
endif
if (.not.associated(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
if (debug) then
write(0,*) me,'Done psb_asmatbld'
call blacs_barrier(icontxt,'All')
endif
if (p%iprcparm(iren_) > 0) then
!
! Here we allocate a full copy to hold local A and received BLK
!
call psb_spinfo(psb_nztotreq_,a,nztota,info)
call psb_spinfo(psb_nztotreq_,blck,nztotb,info)
call psb_spall(atmp,nztota+nztotb,info)
if(info/=0) then
info=4011
call psb_errpush(info,name)
goto 9999
end if
! write(0,*) 'ILU_BLD ',nztota,nztotb,a%m
call psb_sp_renum(a,desc_a,blck,p,atmp,info)
if(info/=0) then
info=4010
ch_err='psb_sp_renum'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
t3 = mpi_wtime()
if (debugprt) then
call blacs_barrier(icontxt,'All')
open(40+me)
call psb_csprt(40+me,atmp,head='% Local matrix')
close(40+me)
endif
if (debug) write(0,*) me,' Factoring rows ',&
&atmp%m,a%m,blck%m,atmp%ia2(atmp%m+1)-1
!
! Ok, factor the matrix.
!
t5 = mpi_wtime()
blck%m=0
call psb_ilu_fct(atmp,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
call psb_spfree(atmp,info)
if(info/=0) then
info=4010
ch_err='psb_spfree'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
else if (p%iprcparm(iren_) == 0) then
t3 = mpi_wtime()
! This is where we have mo renumbering, thus no need
! for ATMP
if (debugprt) then
open(40+me)
call blacs_barrier(icontxt,'All')
call psb_csprt(40+me,a,iv=p%desc_data%loc_to_glob,&
& head='% Local matrix')
if (p%iprcparm(p_type_)==asm_) then
call psb_csprt(40+me,blck,iv=p%desc_data%loc_to_glob,&
& irs=a%m,head='% Received rows')
endif
close(40+me)
endif
t5= mpi_wtime()
if (debug) write(0,*) me,' Going for dilu_fct'
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 (debug) write(0,*) me,' Done dilu_fct'
endif
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
! ierr = MPE_Log_event( ifcte, 0, "st SIMPLE" )
t6 = mpi_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
call psb_spfree(blck,info)
if(info/=0) then
info=4010
ch_err='psb_spfree'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
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.act_abort) then
call psb_error()
return
end if
return
end subroutine psb_dilu_bld
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