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.
755 lines
23 KiB
Fortran
755 lines
23 KiB
Fortran
!!$
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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 PSBLAS 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 PSBLAS 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.
|
|
!!$
|
|
!!$
|
|
! File: psb_cdovr.f90
|
|
!
|
|
! Subroutine: psb_cdovr
|
|
! This routine takes a matrix A with its descriptor, and builds the
|
|
! auxiliary descriptor corresponding to the number of overlap levels
|
|
! specified on input. It really is just a size estimation/allocation
|
|
! front end for <psb_cdovrbld>.
|
|
!
|
|
! Parameters:
|
|
! a - type(<psb_dspmat_type>). The input sparse matrix.
|
|
! desc_a - type(<psb_desc_type>). The input communication descriptor.
|
|
! norv - integer. The number of overlap levels.
|
|
! desc_ov - type(<psb_desc_type>). The auxiliary output communication
|
|
! descriptor.
|
|
! info - integer. Eventually returns an error code.
|
|
!
|
|
Subroutine psb_dcdovr(a,desc_a,novr,desc_ov,info, extype)
|
|
|
|
use psb_tools_mod, psb_protect_name => psb_dcdovr
|
|
|
|
use psb_serial_mod
|
|
use psb_descriptor_type
|
|
use psb_error_mod
|
|
use psb_penv_mod
|
|
use psb_realloc_mod
|
|
use psi_mod
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
Implicit None
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
! .. Array Arguments ..
|
|
integer, intent(in) :: novr
|
|
Type(psb_dspmat_type), Intent(in) :: a
|
|
Type(psb_desc_type), Intent(in) :: desc_a
|
|
Type(psb_desc_type), Intent(inout) :: desc_ov
|
|
integer, intent(out) :: info
|
|
integer, intent(in),optional :: extype
|
|
|
|
interface
|
|
subroutine psb_icdasb(desc_a,info,ext_hv)
|
|
use psb_descriptor_type
|
|
Type(psb_desc_type), intent(inout) :: desc_a
|
|
integer, intent(out) :: info
|
|
logical, intent(in),optional :: ext_hv
|
|
end subroutine psb_icdasb
|
|
end interface
|
|
integer icomm, err_act
|
|
|
|
! .. Local Scalars ..
|
|
Integer :: i, j, k, np, me,m,nnzero,&
|
|
& ictxt, lovr, lworks,lworkr, n_row,n_col, int_err(5),&
|
|
& index_dim,elem_dim, l_tmp_ovr_idx,l_tmp_halo, nztot,nhalo
|
|
Integer :: counter,counter_h, counter_o, counter_e,idx,gidx,proc,n_elem_recv,&
|
|
& n_elem_send,tot_recv,tot_elem,cntov_o,nz,&
|
|
& counter_t,n_elem,i_ovr,jj,proc_id,isz, mglob, glx, &
|
|
& idxr, idxs, lx, iszr, iszs, nxch, nsnd, nrcv,lidx,irsv, extype_
|
|
|
|
type(psb_dspmat_type) :: blk
|
|
Integer, allocatable :: tmp_halo(:),tmp_ovr_idx(:), orig_ovr(:)
|
|
Integer,allocatable :: halo(:),works(:),workr(:),t_halo_in(:),&
|
|
& t_halo_out(:),temp(:),maskr(:)
|
|
Integer,allocatable :: brvindx(:),rvsz(:), bsdindx(:),sdsz(:)
|
|
Logical,Parameter :: debug=.false.
|
|
character(len=20) :: name, ch_err
|
|
|
|
name='psb_cdovr'
|
|
info = 0
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt=psb_cd_get_context(desc_a)
|
|
|
|
Call psb_info(ictxt, me, np)
|
|
|
|
If(debug) Write(0,*)'in psb_cdovr',novr
|
|
|
|
if (present(extype)) then
|
|
extype_ = extype
|
|
else
|
|
extype_ = psb_ovt_xhal_
|
|
endif
|
|
m = psb_cd_get_local_rows(desc_a)
|
|
nnzero = Size(a%aspk)
|
|
n_row = psb_cd_get_local_rows(desc_a)
|
|
n_col = psb_cd_get_local_cols(desc_a)
|
|
nhalo = n_col-m
|
|
|
|
If(debug) Write(0,*)'IN CDOVR1',novr ,m,nnzero,n_col
|
|
if (novr<0) then
|
|
info=10
|
|
int_err(1)=1
|
|
int_err(2)=novr
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
goto 9999
|
|
endif
|
|
|
|
if (debug) write(0,*) 'Calling desccpy'
|
|
call psb_cdcpy(desc_a,desc_ov,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='psb_cdcpy'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
if (debug) write(0,*) 'From desccpy'
|
|
if (novr==0) then
|
|
!
|
|
! Just copy the input.
|
|
!
|
|
return
|
|
endif
|
|
|
|
call psb_get_mpicomm(ictxt,icomm )
|
|
|
|
If(debug)then
|
|
Write(0,*)'BEGIN cdovr',me,nhalo
|
|
call psb_barrier(ictxt)
|
|
endif
|
|
|
|
!
|
|
! Ok, since we are only estimating, do it as follows:
|
|
! LOVR= (NNZ/NROW)*N_HALO*NOVR This assumes that the local average
|
|
! nonzeros per row is the same as the global.
|
|
!
|
|
nztot = psb_sp_get_nnzeros(a)
|
|
if (nztot>0) then
|
|
lovr = ((nztot+m-1)/m)*nhalo*novr
|
|
lworks = ((nztot+m-1)/m)*nhalo
|
|
lworkr = ((nztot+m-1)/m)*nhalo
|
|
else
|
|
info=-1
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
If(debug)Write(0,*)'ovr_est done',me,novr,lovr
|
|
|
|
index_dim = size(desc_a%halo_index)
|
|
elem_dim = size(desc_a%halo_index)
|
|
|
|
l_tmp_ovr_idx = novr*(3*Max(2*index_dim,1)+1)
|
|
l_tmp_halo = novr*(3*Size(desc_a%halo_index))
|
|
|
|
!!$ write(0,*) 'Size of desc_ov ', desc_ov%matrix_data(psb_desc_size_), &
|
|
!!$ & psb_desc_normal_,psb_desc_large_
|
|
call psb_cd_set_bld(desc_ov,info)
|
|
|
|
If(debug) then
|
|
Write(0,*)'Start cdovrbld',me,lworks,lworkr
|
|
call psb_barrier(ictxt)
|
|
endif
|
|
|
|
|
|
Allocate(brvindx(np+1),rvsz(np),sdsz(np),bsdindx(np+1),stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
goto 9999
|
|
end if
|
|
|
|
Allocate(works(lworks),workr(lworkr),t_halo_in(l_tmp_halo),&
|
|
& t_halo_out(l_tmp_halo), temp(lworkr),stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
goto 9999
|
|
end if
|
|
|
|
|
|
call psb_sp_all(blk,max(lworks,lworkr),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
|
|
|
|
blk%fida='COO'
|
|
|
|
Allocate(orig_ovr(l_tmp_ovr_idx),tmp_ovr_idx(l_tmp_ovr_idx),&
|
|
& tmp_halo(l_tmp_halo), halo(size(desc_a%halo_index)),stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
goto 9999
|
|
end if
|
|
halo(:) = desc_a%halo_index(:)
|
|
desc_ov%ovrlap_elem(:) = -1
|
|
tmp_ovr_idx(:) = -1
|
|
orig_ovr(:) = -1
|
|
tmp_halo(:) = -1
|
|
counter_e = 1
|
|
tot_recv = 0
|
|
counter_h = 1
|
|
counter_o = 1
|
|
cntov_o = 1
|
|
! Init overlap with desc_a%ovrlap (if any)
|
|
counter = 1
|
|
Do While (desc_a%ovrlap_index(counter) /= -1)
|
|
proc = desc_a%ovrlap_index(counter+psb_proc_id_)
|
|
n_elem_recv = desc_a%ovrlap_index(counter+psb_n_elem_recv_)
|
|
n_elem_send = desc_a%ovrlap_index(counter+n_elem_recv+psb_n_elem_send_)
|
|
|
|
Do j=0,n_elem_recv-1
|
|
|
|
idx = desc_a%ovrlap_index(counter+psb_elem_recv_+j)
|
|
If(idx > Size(desc_ov%loc_to_glob)) then
|
|
info=-3
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
gidx = desc_ov%loc_to_glob(idx)
|
|
|
|
call psb_ensure_size((cntov_o+3),orig_ovr,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
orig_ovr(cntov_o)=proc
|
|
orig_ovr(cntov_o+1)=1
|
|
orig_ovr(cntov_o+2)=gidx
|
|
orig_ovr(cntov_o+3)=-1
|
|
cntov_o=cntov_o+3
|
|
end Do
|
|
counter=counter+n_elem_recv+n_elem_send+2
|
|
end Do
|
|
|
|
|
|
|
|
|
|
!
|
|
! A picture is in order to understand what goes on here.
|
|
! I is the internal part; H is halo, R row, C column. The final
|
|
! matrix with N levels of overlap looks like this
|
|
!
|
|
! I | Hc1 | 0 | 0 |
|
|
! -------|-----|-----|-----|
|
|
! Hr1 | Hd1 | Hc2 | 0 |
|
|
! -------|-----|-----|-----|
|
|
! 0 | Hr2 | Hd2 | Hc2 |
|
|
! -------|-----|-----|-----|
|
|
! 0 | 0 | Hr3 | Hd3 | Hc3
|
|
!
|
|
! At the start we already have I and Hc1, so we know the row
|
|
! indices that will make up Hr1, and also who owns them. As we
|
|
! actually get those rows, we receive the column indices in Hc2;
|
|
! these define the row indices for Hr2, and so on. When we have
|
|
! reached the desired level HrN.
|
|
!
|
|
!
|
|
Do i_ovr = 1, novr
|
|
|
|
if (debug) write(0,*) me,'Running on overlap level ',i_ovr,' of ',novr
|
|
|
|
!
|
|
! At this point, halo contains a valid halo corresponding to the
|
|
! matrix enlarged with the elements in the frontier for I_OVR-1.
|
|
! At the start, this is just the halo for A; the rows for indices in
|
|
! the first halo will contain column indices defining the second halo
|
|
! level and so on.
|
|
!
|
|
bsdindx(:) = 0
|
|
sdsz(:) = 0
|
|
brvindx(:) = 0
|
|
rvsz(:) = 0
|
|
idxr = 0
|
|
idxs = 0
|
|
counter = 1
|
|
counter_t = 1
|
|
|
|
desc_ov%matrix_data(psb_n_row_)=desc_ov%matrix_data(psb_n_col_)
|
|
|
|
Do While (halo(counter) /= -1)
|
|
tot_elem=0
|
|
proc=halo(counter+psb_proc_id_)
|
|
n_elem_recv=halo(counter+psb_n_elem_recv_)
|
|
n_elem_send=halo(counter+n_elem_recv+psb_n_elem_send_)
|
|
If ((counter+n_elem_recv+n_elem_send) > Size(halo)) then
|
|
info = -1
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end If
|
|
tot_recv=tot_recv+n_elem_recv
|
|
if (debug) write(0,*) me,' CDOVRBLD tot_recv:',proc,n_elem_recv,tot_recv
|
|
!
|
|
!
|
|
! The format of the halo vector exists in two forms: 1. Temporary
|
|
! 2. Assembled. In this loop we are using the (assembled) halo_in and
|
|
! copying it into (temporary) halo_out; this is because tmp_halo will
|
|
! be enlarged with the new column indices received, and will reassemble
|
|
! everything for the next iteration.
|
|
!
|
|
!
|
|
! add recv elements in halo_index into ovrlap_index
|
|
!
|
|
Do j=0,n_elem_recv-1
|
|
If((counter+psb_elem_recv_+j)>Size(halo)) then
|
|
info=-2
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end If
|
|
|
|
idx = halo(counter+psb_elem_recv_+j)
|
|
If(idx > Size(desc_ov%loc_to_glob)) then
|
|
info=-3
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
gidx = desc_ov%loc_to_glob(idx)
|
|
|
|
call psb_ensure_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
tmp_ovr_idx(counter_o)=proc
|
|
tmp_ovr_idx(counter_o+1)=1
|
|
tmp_ovr_idx(counter_o+2)=gidx
|
|
tmp_ovr_idx(counter_o+3)=-1
|
|
counter_o=counter_o+3
|
|
call psb_ensure_size((counter_h+3),tmp_halo,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
tmp_halo(counter_h)=proc
|
|
tmp_halo(counter_h+1)=1
|
|
tmp_halo(counter_h+2)=idx
|
|
tmp_halo(counter_h+3)=-1
|
|
|
|
counter_h=counter_h+3
|
|
|
|
Enddo
|
|
if (debug) write(0,*) me,'Checktmp_o_i Loop Mid1',tmp_ovr_idx(1:10)
|
|
counter = counter+n_elem_recv
|
|
|
|
!
|
|
! add send elements in halo_index into ovrlap_index
|
|
!
|
|
Do j=0,n_elem_send-1
|
|
|
|
idx = halo(counter+psb_elem_send_+j)
|
|
gidx = desc_ov%loc_to_glob(idx)
|
|
if (idx > psb_cd_get_local_rows(Desc_a)) &
|
|
& write(0,*) me,i_ovr,'Out of local rows ',&
|
|
& idx,psb_cd_get_local_rows(Desc_a)
|
|
|
|
call psb_ensure_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
tmp_ovr_idx(counter_o)=proc
|
|
tmp_ovr_idx(counter_o+1)=1
|
|
tmp_ovr_idx(counter_o+2)=gidx
|
|
tmp_ovr_idx(counter_o+3)=-1
|
|
counter_o=counter_o+3
|
|
|
|
!
|
|
! Prepare to exchange the halo rows with the other proc.
|
|
!
|
|
If (i_ovr <= (novr)) Then
|
|
n_elem = psb_sp_get_nnz_row(idx,a)
|
|
call psb_ensure_size((idxs+tot_elem+n_elem),works,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
If((n_elem) > size(blk%ia2)) Then
|
|
isz = max((3*size(blk%ia2))/2,(n_elem))
|
|
if (debug) write(0,*) me,'Realloc blk',isz
|
|
call psb_sp_reall(blk,isz,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='psb_sp_reall'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
End If
|
|
|
|
call psb_sp_getblk(idx,a,blk,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='psb_sp_getblk'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
!!$ write(0,*) me,'Iteration: ',j,i_ovr
|
|
|
|
Do jj=1,n_elem
|
|
works(idxs+tot_elem+jj)=desc_ov%loc_to_glob(blk%ia2(jj))
|
|
End Do
|
|
|
|
tot_elem=tot_elem+n_elem
|
|
End If
|
|
|
|
Enddo
|
|
|
|
|
|
if (i_ovr <= novr) then
|
|
if (tot_elem > 1) then
|
|
call psb_msort(works(idxs+1:idxs+tot_elem))
|
|
lx = works(idxs+1)
|
|
i = 1
|
|
j = 1
|
|
do
|
|
j = j + 1
|
|
if (j > tot_elem) exit
|
|
if (works(idxs+j) /= lx) then
|
|
i = i + 1
|
|
works(idxs+i) = works(idxs+j)
|
|
lx = works(idxs+i)
|
|
end if
|
|
end do
|
|
tot_elem = i
|
|
endif
|
|
if (debug) write(0,*) me,'Checktmp_o_i Loop Mid2',tmp_ovr_idx(1:10)
|
|
sdsz(proc+1) = tot_elem
|
|
idxs = idxs + tot_elem
|
|
end if
|
|
counter = counter+n_elem_send+3
|
|
if (debug) write(0,*) me,'Checktmp_o_i Loop End',tmp_ovr_idx(1:10)
|
|
Enddo
|
|
if (debug) write(0,*)me,'End phase 1 CDOVRBLD', m, n_col, tot_recv
|
|
|
|
if (i_ovr <= novr) then
|
|
!
|
|
! Exchange data requests with everybody else: so far we have
|
|
! accumulated RECV requests, we have an all-to-all to build
|
|
! matchings SENDs.
|
|
!
|
|
call mpi_alltoall(sdsz,1,mpi_integer,rvsz,1,mpi_integer,icomm,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='mpi_alltoall'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
idxs = 0
|
|
idxr = 0
|
|
counter = 1
|
|
Do
|
|
proc=halo(counter)
|
|
if (proc == -1) exit
|
|
n_elem_recv = halo(counter+psb_n_elem_recv_)
|
|
counter = counter+n_elem_recv
|
|
n_elem_send = halo(counter+psb_n_elem_send_)
|
|
|
|
bsdindx(proc+1) = idxs
|
|
idxs = idxs + sdsz(proc+1)
|
|
brvindx(proc+1) = idxr
|
|
idxr = idxr + rvsz(proc+1)
|
|
counter = counter+n_elem_send+3
|
|
Enddo
|
|
|
|
iszr=sum(rvsz)
|
|
if (max(iszr,1) > lworkr) then
|
|
call psb_realloc(max(iszr,1),workr,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
lworkr=max(iszr,1)
|
|
end if
|
|
|
|
call mpi_alltoallv(works,sdsz,bsdindx,mpi_integer,&
|
|
& workr,rvsz,brvindx,mpi_integer,icomm,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
ch_err='mpi_alltoallv'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if (debug) write(0,*) 'ISZR :',iszr
|
|
|
|
if (psb_is_large_desc(desc_ov)) then
|
|
call psb_ensure_size(iszr,maskr,info)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
call psi_idx_cnv(iszr,workr,maskr,desc_ov,info)
|
|
iszs = count(maskr(1:iszr)<=0)
|
|
if (iszs > size(works)) call psb_realloc(iszs,works,info)
|
|
j = 0
|
|
do i=1,iszr
|
|
if (maskr(i) < 0) then
|
|
j=j+1
|
|
works(j) = workr(i)
|
|
end if
|
|
end do
|
|
!
|
|
! fnd_owner on desc_a because we want the procs who
|
|
! owned the rows from the beginning!
|
|
!
|
|
call psi_fnd_owner(iszs,works,temp,desc_a,info)
|
|
n_col=psb_cd_get_local_cols(desc_ov)
|
|
|
|
do i=1,iszs
|
|
idx = works(i)
|
|
n_col = psb_cd_get_local_cols(desc_ov)
|
|
call psi_idx_ins_cnv(idx,lidx,desc_ov,info)
|
|
if (psb_cd_get_local_cols(desc_ov) > n_col ) then
|
|
!
|
|
! This is a new index. Assigning a local index as
|
|
! we receive them guarantees that all indices for HALO(I)
|
|
! will be less than those for HALO(J) whenever I<J
|
|
!
|
|
proc_id = temp(i)
|
|
|
|
call psb_ensure_size((counter_t+3),t_halo_in,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
t_halo_in(counter_t)=proc_id
|
|
t_halo_in(counter_t+1)=1
|
|
t_halo_in(counter_t+2)=lidx
|
|
t_halo_in(counter_t+3)=-1
|
|
counter_t=counter_t+3
|
|
if (.false.) write(0,*) me,' CDOVRBLD: Added t_halo_in ',&
|
|
&proc_id,lidx,idx
|
|
endif
|
|
end Do
|
|
n_col = psb_cd_get_local_cols(desc_ov)
|
|
|
|
else
|
|
|
|
Do i=1,iszr
|
|
idx=workr(i)
|
|
if (idx <1) then
|
|
write(0,*) me,'Error in CDOVRBLD level',i_ovr,' : ',idx,i,iszr
|
|
else If (desc_ov%glob_to_loc(idx) < -np) Then
|
|
!
|
|
! This is a new index. Assigning a local index as
|
|
! we receive them guarantees that all indices for HALO(I)
|
|
! will be less than those for HALO(J) whenever I<J
|
|
!
|
|
n_col=n_col+1
|
|
proc_id=-desc_ov%glob_to_loc(idx)-np-1
|
|
call psb_ensure_size(n_col,desc_ov%loc_to_glob,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
desc_ov%glob_to_loc(idx)=n_col
|
|
desc_ov%loc_to_glob(n_col)=idx
|
|
|
|
call psb_ensure_size((counter_t+3),t_halo_in,info,pad=-1)
|
|
if (info /= 0) then
|
|
info=4010
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
|
|
t_halo_in(counter_t)=proc_id
|
|
t_halo_in(counter_t+1)=1
|
|
t_halo_in(counter_t+2)=n_col
|
|
t_halo_in(counter_t+3)=-1
|
|
counter_t=counter_t+3
|
|
if (debug) write(0,*) me,' CDOVRBLD: Added into t_halo_in from recv',&
|
|
&proc_id,n_col,idx
|
|
else if (desc_ov%glob_to_loc(idx) < 0) Then
|
|
if (debug) write(0,*) me,'Wrong input to cdovrbld?',&
|
|
&idx,desc_ov%glob_to_loc(idx)
|
|
End If
|
|
End Do
|
|
desc_ov%matrix_data(psb_n_col_)=n_col
|
|
|
|
end if
|
|
|
|
end if
|
|
!
|
|
! Ok, now we have a temporary halo with all the info for the
|
|
! next round. If we need to keep going, convert the halo format
|
|
! from temporary to final, so that we can work out the next iteration.
|
|
! This uses one of the convert_comm internals, i.e. we are doing
|
|
! the equivalent of a partial call to convert_comm
|
|
!
|
|
t_halo_in(counter_t)=-1
|
|
|
|
If (i_ovr < (novr)) Then
|
|
|
|
|
|
if (debug) write(0,*) me,'Checktmp_o_i 1',tmp_ovr_idx(1:10)
|
|
if (debug) write(0,*) me,'Calling Crea_Halo'
|
|
|
|
call psi_crea_index(desc_ov,t_halo_in,t_halo_out,.false.,&
|
|
& nxch,nsnd,nrcv,info)
|
|
|
|
if (debug) then
|
|
write(0,*) me,'Done Crea_Index'
|
|
call psb_barrier(ictxt)
|
|
end if
|
|
if (debug) write(0,*) me,'Checktmp_o_i 2',tmp_ovr_idx(1:10)
|
|
if (debug) write(0,*) me,'Done Crea_Halo'
|
|
call psb_transfer(t_halo_out,halo,info)
|
|
!
|
|
! At this point we have built the halo necessary for I_OVR+1.
|
|
!
|
|
End If
|
|
if (debug) write(0,*) me,'Checktmp_o_i ',tmp_ovr_idx(1:10)
|
|
|
|
End Do
|
|
|
|
|
|
select case(extype_)
|
|
case(psb_ovt_xhal_)
|
|
!
|
|
! Build an extended-stencil halo, but no overlap enlargement.
|
|
! Here we need: 1. orig_ovr -> ovrlap
|
|
! 2. (tmp_halo + t_halo_in) -> halo
|
|
! 3. (t_ovr_idx) -> /dev/null
|
|
! 4. n_row(ov) = n_row(a)
|
|
! 5. n_col(ov) current.
|
|
!
|
|
desc_ov%matrix_data(psb_n_row_) = desc_a%matrix_data(psb_n_row_)
|
|
call psb_transfer(orig_ovr,desc_ov%ovrlap_index,info)
|
|
call psb_ensure_size((counter_h+counter_t+1),tmp_halo,info,pad=-1)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
tmp_halo(counter_h:counter_h+counter_t-1) = t_halo_in(1:counter_t)
|
|
counter_h = counter_h+counter_t-1
|
|
tmp_halo(counter_h:) = -1
|
|
call psb_transfer(tmp_halo,desc_ov%halo_index,info)
|
|
deallocate(tmp_ovr_idx,stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='deallocate')
|
|
goto 9999
|
|
end if
|
|
|
|
case(psb_ovt_asov_)
|
|
!
|
|
! Build an overlapped descriptor for Additive Schwarz
|
|
! with overlap enlargement; we need the overlap,
|
|
! the (new) halo and the mapping into the new index space.
|
|
! Here we need: 1. (orig_ovr + t_ovr_idx -> ovrlap
|
|
! 2. (tmp_halo) -> ext
|
|
! 3. (t_halo_in) -> halo
|
|
! 4. n_row(ov) current.
|
|
! 5. n_col(ov) current.
|
|
!
|
|
call psb_ensure_size((cntov_o+counter_o+1),orig_ovr,info,pad=-1)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
orig_ovr(cntov_o:cntov_o+counter_o-1) = tmp_ovr_idx(1:counter_o)
|
|
cntov_o = cntov_o+counter_o-1
|
|
orig_ovr(cntov_o:) = -1
|
|
call psb_transfer(orig_ovr,desc_ov%ovrlap_index,info)
|
|
deallocate(tmp_ovr_idx,stat=info)
|
|
if (info /= 0) then
|
|
call psb_errpush(4010,name,a_err='deallocate')
|
|
goto 9999
|
|
end if
|
|
tmp_halo(counter_h:) = -1
|
|
call psb_transfer(tmp_halo,desc_ov%ext_index,info)
|
|
call psb_transfer(t_halo_in,desc_ov%halo_index,info)
|
|
|
|
case default
|
|
call psb_errpush(30,name,i_err=(/5,extype_,0,0,0/))
|
|
goto 9999
|
|
end select
|
|
|
|
!
|
|
! At this point we have gathered all the indices in the halo at
|
|
! N levels of overlap. Just call icdasb forcing to use
|
|
! the halo_index provided. This is the same routine as gets
|
|
! called inside CDASB.
|
|
!
|
|
|
|
if (debug) then
|
|
write(0,*) 'psb_cdovrbld: converting indexes'
|
|
call psb_barrier(ictxt)
|
|
end if
|
|
call psb_icdasb(desc_ov,info,ext_hv=.true.)
|
|
|
|
if (debug) then
|
|
write(0,*) me,'Done CDASB'
|
|
call psb_barrier(ictxt)
|
|
end if
|
|
|
|
if (info == 0) call psb_sp_free(blk,info)
|
|
if (info /= 0) then
|
|
ch_err='sp_free'
|
|
call psb_errpush(4013,name,a_err=ch_err,i_err=(/info,0,0,0,0/))
|
|
goto 9999
|
|
end if
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 continue
|
|
call psb_erractionrestore(err_act)
|
|
if (err_act == psb_act_abort_) then
|
|
call psb_error(ictxt)
|
|
return
|
|
end if
|
|
Return
|
|
|
|
End Subroutine psb_dcdovr
|
|
|