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amg4psblas/psb_zbjac_bld.f90

484 lines
14 KiB
Fortran
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!!$
!!$
!!$ 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_zbjac_bld(a,desc_a,p,upd,info)
use psb_base_mod
use psb_prec_mod, mld_protect_name => psb_zbjac_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
! .. Local Scalars ..
integer :: i, j, jj, k, kk, m
integer :: int_err(5)
character :: trans, unitd
type(psb_zspmat_type) :: blck, atmp
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,n_col, nhalo, ind, iind
integer :: ictxt,np,me
character(len=20) :: name, ch_err
character(len=5), parameter :: coofmt='COO'
if(psb_get_errstatus().ne.0) return
info=0
name='psb_zbjac_bld'
call psb_erractionsave(err_act)
ictxt=psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
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 psb_nullify_sp(blck)
call psb_nullify_sp(atmp)
t1= psb_wtime()
if(debug) write(0,*)me,': calling psb_asmatbld',p%iprcparm(p_type_),p%iprcparm(n_ovr_)
if (debug) call psb_barrier(ictxt)
call psb_asmatbld(p%iprcparm(p_type_),p%iprcparm(n_ovr_),a,&
& blck,desc_a,upd,p%desc_data,info,outfmt=coofmt)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_asmatbld')
goto 9999
end if
t2= psb_wtime()
if (debug) write(0,*)me,': out of psb_asmatbld'
if (debug) call psb_barrier(ictxt)
select case(p%iprcparm(iren_))
case (1:)
!
! Here we allocate a full copy to hold local A and received BLK
! Done inside sp_renum.
!
call psb_sp_renum(a,desc_a,blck,p,atmp,info)
if (info/=0) then
call psb_errpush(4010,name,a_err='psb_sp_renum')
goto 9999
end if
!------------------------------------------------------------------
! Split AC=M+N N off-diagonal part
! Output in COO format.
call psb_sp_clip(atmp,p%av(ap_nd_),info,&
& jmin=atmp%m+1,rscale=.false.,cscale=.false.)
call psb_ipcoo2csr(p%av(ap_nd_),info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
k = psb_sp_get_nnzeros(p%av(ap_nd_))
call psb_sum(ictxt,k)
if (k == 0) then
! If the off diagonal part is emtpy, there's no point
! in doing multiple Jacobi sweeps. This is certain
! to happen when running on a single processor.
p%iprcparm(jac_sweeps_) = 1
end if
t3 = psb_wtime()
if (debugprt) then
call psb_barrier(ictxt)
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
select case(p%iprcparm(f_type_))
case(f_ilu_n_,f_ilu_e_)
call psb_ipcoo2csr(atmp,info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
call psb_ilu_bld(atmp,p%desc_data,p,upd,info)
if (info/=0) then
call psb_errpush(4010,name,a_err='psb_ilu_bld')
goto 9999
end if
if (debugprt) then
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
case(f_slu_)
call psb_ipcoo2csr(atmp,info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
call psb_slu_bld(atmp,p%desc_data,p,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='slu_bld')
goto 9999
end if
case(f_umf_)
call psb_ipcoo2csc(atmp,info,clshr=.true.)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csc')
goto 9999
end if
call psb_umf_bld(atmp,p%desc_data,p,info)
if(debug) write(0,*)me,': Done umf_bld ',info
if (info /= 0) then
call psb_errpush(4010,name,a_err='umf_bld')
goto 9999
end if
case(f_none_)
info=4010
call psb_errpush(info,name,a_err='Inconsistent prec f_none_')
goto 9999
case default
info=4010
call psb_errpush(info,name,a_err='Unknown f_type_')
goto 9999
end select
call psb_sp_free(atmp,info)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_sp_free')
goto 9999
end if
case(0) ! No renumbering
select case(p%iprcparm(f_type_))
case(f_ilu_n_,f_ilu_e_)
if (p%iprcparm(jac_sweeps_) > 1) then
atmp%fida='COO'
call psb_csdp(a,atmp,info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_csdp')
goto 9999
end if
n_row = psb_cd_get_local_rows(p%desc_data)
n_col = psb_cd_get_local_cols(p%desc_data)
call psb_rwextd(n_row,atmp,info,b=blck,rowscale=.false.)
!------------------------------------------------------------------
! Split AC=M+N N off-diagonal part
! Output in COO format.
call psb_sp_clip(atmp,p%av(ap_nd_),info,&
& jmin=atmp%m+1,rscale=.false.,cscale=.false.)
call psb_ipcoo2csr(p%av(ap_nd_),info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
k = psb_sp_get_nnzeros(p%av(ap_nd_))
call psb_sum(ictxt,k)
if (k == 0) then
! If the off diagonal part is emtpy, there's no point
! in doing multiple Jacobi sweeps. This is certain
! to happen when running on a single processor.
p%iprcparm(jac_sweeps_) = 1
end if
call psb_sp_free(atmp,info)
end if
call psb_ipcoo2csr(blck,info,rwshr=.true.)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
call psb_ilu_bld(a,desc_a,p,upd,info,blck=blck)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_ilu_bld')
goto 9999
end if
if (debugprt) then
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
case(f_slu_)
atmp%fida='COO'
call psb_csdp(a,atmp,info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_csdp')
goto 9999
end if
n_row = psb_cd_get_local_rows(p%desc_data)
n_col = psb_cd_get_local_cols(p%desc_data)
call psb_rwextd(n_row,atmp,info,b=blck,rowscale=.false.)
if (p%iprcparm(jac_sweeps_) > 1) then
!------------------------------------------------------------------
! Split AC=M+N N off-diagonal part
! Output in COO format.
call psb_sp_clip(atmp,p%av(ap_nd_),info,&
& jmin=atmp%m+1,rscale=.false.,cscale=.false.)
call psb_ipcoo2csr(p%av(ap_nd_),info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
k = psb_sp_get_nnzeros(p%av(ap_nd_))
call psb_sum(ictxt,k)
if (k == 0) then
! If the off diagonal part is emtpy, there's no point
! in doing multiple Jacobi sweeps. This is certain
! to happen when running on a single processor.
p%iprcparm(jac_sweeps_) = 1
end if
endif
if (info == 0) call psb_ipcoo2csr(atmp,info)
if (info == 0) call psb_slu_bld(atmp,p%desc_data,p,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='slu_bld')
goto 9999
end if
call psb_sp_free(atmp,info)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_sp_free')
goto 9999
end if
case(f_umf_)
atmp%fida='COO'
call psb_csdp(a,atmp,info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_csdp')
goto 9999
end if
n_row = psb_cd_get_local_rows(p%desc_data)
n_col = psb_cd_get_local_cols(p%desc_data)
call psb_rwextd(n_row,atmp,info,b=blck,rowscale=.false.)
if (p%iprcparm(jac_sweeps_) > 1) then
!------------------------------------------------------------------
! Split AC=M+N N off-diagonal part
! Output in COO format.
call psb_sp_clip(atmp,p%av(ap_nd_),info,&
& jmin=atmp%m+1,rscale=.false.,cscale=.false.)
call psb_ipcoo2csr(p%av(ap_nd_),info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csr')
goto 9999
end if
k = psb_sp_get_nnzeros(p%av(ap_nd_))
call psb_sum(ictxt,k)
if (k == 0) then
! If the off diagonal part is emtpy, there's no point
! in doing multiple Jacobi sweeps. This is certain
! to happen when running on a single processor.
p%iprcparm(jac_sweeps_) = 1
end if
endif
if (info == 0) call psb_ipcoo2csc(atmp,info,clshr=.true.)
if (info /= 0) then
call psb_errpush(4010,name,a_err='psb_ipcoo2csc')
goto 9999
end if
call psb_umf_bld(atmp,p%desc_data,p,info)
if(debug) write(0,*)me,': Done umf_bld ',info
if (info /= 0) then
call psb_errpush(4010,name,a_err='umf_bld')
goto 9999
end if
call psb_sp_free(atmp,info)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_sp_free')
goto 9999
end if
case(f_none_)
info=4010
call psb_errpush(info,name,a_err='Inconsistent prec f_none_')
goto 9999
case default
info=4010
call psb_errpush(info,name,a_err='Unknown f_type_')
goto 9999
end select
case default
info=4010
call psb_errpush(info,name,a_err='Invalid renum_')
goto 9999
end select
t6 = psb_wtime()
call psb_sp_free(blck,info)
if(info/=0) then
call psb_errpush(4010,name,a_err='psb_sp_free')
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.psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine psb_zbjac_bld
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