!!$
!!$
!!$ 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.
!!$
!!$
subroutine mld_zaggrmat_raw_asb(a,desc_a,ac,desc_ac,p,info)
use psb_base_mod
use mld_prec_mod, mld_protect_name => mld_zaggrmat_raw_asb
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_zspmat_type), intent(in), target :: a
type(mld_zbaseprc_type), intent(inout),target :: p
type(psb_zspmat_type), intent(inout), target :: ac
type(psb_desc_type), intent(in) :: desc_a
type(psb_desc_type), intent(inout) :: desc_ac
integer, intent(out) :: info
logical, parameter :: aggr_dump=.false.
integer ::ictxt,np,me, err_act,icomm
character(len=20) :: name, ch_err
type(psb_zspmat_type) :: b
integer, pointer :: nzbr(:), idisp(:)
integer :: nrow, nglob, ncol, ntaggr, nzac, ip, ndx,&
& naggr, nzt,jl,nzl,nlr, naggrm1, i, j, k
name='mld_aggrmat_raw_asb'
if(psb_get_errstatus().ne.0) return
info=0
call psb_erractionsave(err_act)
call psb_nullify_sp(b)
ictxt = psb_cd_get_context(desc_a)
icomm = psb_cd_get_mpic(desc_a)
call psb_info(ictxt, me, np)
nglob = psb_cd_get_global_rows(desc_a)
nrow = psb_cd_get_local_rows(desc_a)
ncol = psb_cd_get_local_cols(desc_a)
naggr = p%nlaggr(me+1)
ntaggr = sum(p%nlaggr)
allocate(nzbr(np), idisp(np),stat=info)
if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/2*np,0,0,0,0/),&
& a_err='integer')
goto 9999
end if
naggrm1=sum(p%nlaggr(1:me))
if (p%iprcparm(mld_coarse_mat_) == mld_repl_mat_) then
do i=1, nrow
p%mlia(i) = p%mlia(i) + naggrm1
end do
call psb_halo(p%mlia,desc_a,info)
end if
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_halo')
goto 9999
end if
call psb_sp_clip(a,b,info,jmax=nrow)
if(info /= 0) then
call psb_errpush(4010,name,a_err='spclip')
goto 9999
end if
! Out from sp_clip is always in COO, but just in case..
if (tolower(b%fida) /= 'coo') then
call psb_errpush(4010,name,a_err='spclip NOT COO')
goto 9999
end if
nzt = psb_sp_get_nnzeros(b)
do i=1, nzt
b%ia1(i) = p%mlia(b%ia1(i))
b%ia2(i) = p%mlia(b%ia2(i))
enddo
b%m = naggr
b%k = naggr
! This is to minimize data exchange
call psb_spcnv(b,info,afmt='coo',dupl=psb_dupl_add_)
if (p%iprcparm(mld_coarse_mat_) == mld_repl_mat_) then
call psb_cdrep(ntaggr,ictxt,desc_ac,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_cdrep')
goto 9999
end if
nzbr(:) = 0
nzbr(me+1) = nzt
call psb_sum(ictxt,nzbr(1:np))
nzac = sum(nzbr)
call psb_sp_all(ntaggr,ntaggr,ac,nzac,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='sp_all')
goto 9999
end if
do ip=1,np
idisp(ip) = sum(nzbr(1:ip-1))
enddo
ndx = nzbr(me+1)
call mpi_allgatherv(b%aspk,ndx,mpi_double_complex,ac%aspk,nzbr,idisp,&
& mpi_double_complex,icomm,info)
call mpi_allgatherv(b%ia1,ndx,mpi_integer,ac%ia1,nzbr,idisp,&
& mpi_integer,icomm,info)
call mpi_allgatherv(b%ia2,ndx,mpi_integer,ac%ia2,nzbr,idisp,&
& mpi_integer,icomm,info)
if(info /= 0) then
info=-1
call psb_errpush(info,name)
goto 9999
end if
ac%m = ntaggr
ac%k = ntaggr
ac%infoa(psb_nnz_) = nzac
ac%fida='COO'
ac%descra='G'
call psb_spcnv(ac,info,afmt='coo',dupl=psb_dupl_add_)
if(info /= 0) then
call psb_errpush(4010,name,a_err='sp_free')
goto 9999
end if
else if (p%iprcparm(mld_coarse_mat_) == mld_distr_mat_) then
call psb_cdall(ictxt,desc_ac,info,nl=naggr)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_cdall')
goto 9999
end if
call psb_cdasb(desc_ac,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_cdasb')
goto 9999
end if
call psb_sp_clone(b,ac,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='spclone')
goto 9999
end if
call psb_sp_free(b,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='sp_free')
goto 9999
end if
else
write(0,*) 'Unknown p%iprcparm(coarse_mat) in aggregate_sp',p%iprcparm(mld_coarse_mat_)
end if
deallocate(nzbr,idisp)
call psb_spcnv(ac,info,afmt='csr',dupl=psb_dupl_add_)
if(info /= 0) then
call psb_errpush(4010,name,a_err='ipcoo2csr')
goto 9999
end if
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 mld_zaggrmat_raw_asb