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Take out dcdovrbld, and redefine interface to cdovr to be calle psb_cdbldovr.

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psblas3-type-indexed
Salvatore Filippone 18 years ago
parent 63c4143fbb
commit ac9ff90218
6 changed files with 8 additions and 1300 deletions
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33
src/modules/psb_tools_mod.f90
Unescape Escape View File

@ -165,34 +165,6 @@ Module psb_tools_mod
end interface end interface
interface psb_cdovrbld
Subroutine psb_dcdovrbld(n_ovr,desc_p,desc_a,a,&
& l_tmp_halo,l_tmp_ovr_idx,lworks,lworkr,info)
use psb_descriptor_type
use psb_spmat_type
type(psb_dspmat_type),intent(in) :: a
type(psb_desc_type),intent(in) :: desc_a
type(psb_desc_type),intent(inout) :: desc_p
integer,intent(in) :: n_ovr
Integer, Intent(in) :: l_tmp_halo,l_tmp_ovr_idx
Integer, Intent(inout) :: lworks, lworkr
integer, intent(out) :: info
end Subroutine psb_dcdovrbld
Subroutine psb_zcdovrbld(n_ovr,desc_p,desc_a,a,&
& l_tmp_halo,l_tmp_ovr_idx,lworks,lworkr,info)
use psb_descriptor_type
use psb_spmat_type
type(psb_zspmat_type),intent(in) :: a
type(psb_desc_type),intent(in) :: desc_a
type(psb_desc_type),intent(inout) :: desc_p
integer,intent(in) :: n_ovr
Integer, Intent(in) :: l_tmp_halo,l_tmp_ovr_idx
Integer, Intent(inout) :: lworks, lworkr
integer, intent(out) :: info
end Subroutine psb_zcdovrbld
end interface
interface psb_cdprt interface psb_cdprt
subroutine psb_cdprt(iout,desc_p,glob,short) subroutine psb_cdprt(iout,desc_p,glob,short)
use psb_const_mod use psb_const_mod
@ -430,7 +402,7 @@ Module psb_tools_mod
end interface end interface
interface psb_cdovr interface psb_cdbldovr
Subroutine psb_dcdovr(a,desc_a,novr,desc_ov,info) Subroutine psb_dcdovr(a,desc_a,novr,desc_ov,info)
use psb_descriptor_type use psb_descriptor_type
Use psb_spmat_type Use psb_spmat_type
@ -450,8 +422,7 @@ Module psb_tools_mod
integer, intent(out) :: info integer, intent(out) :: info
end Subroutine psb_zcdovr end Subroutine psb_zcdovr
end interface end interface
interface psb_cdren interface psb_cdren
subroutine psb_cdren(trans,iperm,desc_a,info) subroutine psb_cdren(trans,iperm,desc_a,info)
use psb_descriptor_type use psb_descriptor_type

6
src/prec/psb_dasmatbld.f90
Unescape Escape View File

@ -181,16 +181,16 @@ Subroutine psb_dasmatbld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
! !
! Build the auiliary descriptor',desc_p%matrix_data(psb_n_row_) ! Build the auiliary descriptor',desc_p%matrix_data(psb_n_row_)
! !
call psb_cdovr(a,desc_data,novr,desc_p,info) call psb_cdbldovr(a,desc_data,novr,desc_p,info)
if(info /= 0) then if(info /= 0) then
info=4010 info=4010
ch_err='psb_cdovr' ch_err='psb_cdbldovr'
call psb_errpush(info,name,a_err=ch_err) call psb_errpush(info,name,a_err=ch_err)
goto 9999 goto 9999
end if end if
Endif Endif
if(debug) write(0,*) me,' From cdovr _:',desc_p%matrix_data(psb_n_row_),& if(debug) write(0,*) me,' From cdbldovr _:',desc_p%matrix_data(psb_n_row_),&
& desc_p%matrix_data(psb_n_col_) & desc_p%matrix_data(psb_n_col_)

4
src/prec/psb_zasmatbld.f90
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@ -181,10 +181,10 @@ Subroutine psb_zasmatbld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt)
! !
! Build the auiliary descriptor',desc_p%matrix_data(psb_n_row_) ! Build the auiliary descriptor',desc_p%matrix_data(psb_n_row_)
! !
call psb_cdovr(a,desc_data,novr,desc_p,info) call psb_cdbldovr(a,desc_data,novr,desc_p,info)
if(info /= 0) then if(info /= 0) then
info=4010 info=4010
ch_err='psb_cdovr' ch_err='psb_cdbldovr'
call psb_errpush(info,name,a_err=ch_err) call psb_errpush(info,name,a_err=ch_err)
goto 9999 goto 9999
end if end if

3
src/tools/Makefile
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@ -13,8 +13,7 @@ FOBJS = psb_dallc.o psb_dasb.o psb_dcsrp.o psb_cdprt.o \
psb_zspalloc.o psb_zspasb.o psb_zspcnv.o psb_zspfree.o\ psb_zspalloc.o psb_zspasb.o psb_zspcnv.o psb_zspfree.o\
psb_zspins.o psb_zsprn.o psb_zcdovr.o psb_zgelp.o psb_zspins.o psb_zsprn.o psb_zcdovr.o psb_zgelp.o
MPFOBJS = psb_dcdovrbld.o psb_dsphalo.o psb_zcdovrbld.o psb_zsphalo.o psb_cdasb.o \ MPFOBJS = psb_dsphalo.o psb_zsphalo.o psb_cdasb.o psb_dcdovr.o psb_zcdovr.o
psb_dcdovr.o psb_zcdovr.o
INCDIRS = -I ../../lib -I . INCDIRS = -I ../../lib -I .
LIBDIR = ../../lib LIBDIR = ../../lib

634
src/tools/psb_dcdovrbld.f90
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@ -1,634 +0,0 @@
!!$
!!$ 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_dcdovrbld.f90
!
! Subroutine: psb_dcdovrbld
! This routine takes a matrix A with its descriptor, and builds the
! auxiliary descriptor corresponding to the number of overlap levels
! specified on input. This is the actual worker horse.....
! Note that n_ovr > 0 thanks to the caller routine.
!
! Parameters:
! n_ovr - integer. The number of overlap levels
! desc_p - type(<psb_desc_type>). The communication descriptor
! for the preconditioner.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! a - type(<psb_dspmat_type). The matrix upon which the preconditioner
! will be built.
! l_tmp_halo - integer. Input estimate for allocation sizes.
! l_tmp_ovr_idx - integer. Input estimate for allocation sizes.
! lworkr - integer. Input estimate for allocation sizes.
! lworks - integer. Input estimate for allocation sizes.
! info - integer. Possibly return an error code
Subroutine psb_dcdovrbld(n_ovr,desc_p,desc_a,a,&
& l_tmp_halo,l_tmp_ovr_idx,lworks,lworkr,info)
use psb_descriptor_type
use psb_serial_mod
Use psi_mod
use psb_realloc_mod
use psb_error_mod
use psb_const_mod
use psb_penv_mod
use psb_tools_mod
use mpi
Implicit None
type(psb_dspmat_type),intent(in) :: a
type(psb_desc_type),intent(in) :: desc_a
type(psb_desc_type),intent(inout) :: desc_p
integer,intent(in) :: n_ovr
! Input estimates for allocation sizes. Could we do without these two???
Integer, Intent(in) :: l_tmp_halo,l_tmp_ovr_idx
Integer, Intent(inout) :: lworks, lworkr
integer, intent(out) :: info
type(psb_dspmat_type) :: blk
Integer, allocatable :: tmp_halo(:),tmp_ovr_idx(:)
Integer :: counter,counter_h, counter_o, counter_e,j,idx,gidx,proc,n_elem_recv,&
& n_elem_send,tot_recv,tot_elem,n_col,m,ictxt,np,me,dl_lda,lwork,&
& counter_t,n_elem,i_ovr,jj,i,proc_id,isz, mglob, glx,n_row, &
& idxr, idxs, lx, iszr, iszs, err_act, icomm, nxch, nsnd, nrcv,lidx
Integer,allocatable :: halo(:),works(:),workr(:),t_halo_in(:),&
& t_halo_out(:),temp(:),maskr(:)
Integer,allocatable :: brvindx(:),rvsz(:), bsdindx(:),sdsz(:)
Logical,Parameter :: debug=.false.
real(kind(1.d0)) :: t1,t2,t3,t4,t5,t6,t7, tl, tch
character(len=20) :: name, ch_err
if(psb_get_errstatus() /= 0) return
info=0
name='psb_cdovrbld'
call psb_erractionsave(err_act)
If(debug) Write(0,*)'cdovrbld begin'
ictxt = psb_cd_get_context(desc_a)
Call psb_info(ictxt,me,np)
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
tl = 0.0
tch = 0.0
t4 = 0.0
call psb_get_mpicomm(ictxt,icomm )
mglob = psb_cd_get_global_rows(desc_a)
m = psb_cd_get_local_rows(desc_a)
n_row = psb_cd_get_local_rows(desc_a)
n_col = psb_cd_get_local_cols(desc_a)
if (debug) write(0,*) me,' On entry to CDOVRBLD n_col:',n_col
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(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_p%ovrlap_elem(:) = -1
tmp_ovr_idx(:) = -1
tmp_halo(:) = -1
counter_e = 1
tot_recv = 0
counter_h = 1
counter_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_p%loc_to_glob)) then
info=-3
call psb_errpush(info,name)
goto 9999
endif
gidx = desc_p%loc_to_glob(idx)
call psb_check_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
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, we may ignore HcN.
!
!
Do i_ovr=1,n_ovr
if (debug) write(0,*) me,'Running on overlap level ',i_ovr,' of ',n_ovr
!
! 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
t1 = mpi_wtime()
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.
!
t3 = mpi_wtime()
!
! 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_p%loc_to_glob)) then
info=-3
call psb_errpush(info,name)
goto 9999
endif
gidx = desc_p%loc_to_glob(idx)
call psb_check_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
if (.not.psb_is_large_desc(desc_p)) then
call psb_check_size((counter_h+3),tmp_halo,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
end if
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_p%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_check_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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 < (n_ovr)) Then
n_elem = psb_sp_get_nnz_row(idx,a)
call psb_check_size((idxs+tot_elem+n_elem),works,info)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
Do jj=1,n_elem
works(idxs+tot_elem+jj)=desc_p%loc_to_glob(blk%ia2(jj))
End Do
tot_elem=tot_elem+n_elem
End If
Enddo
t4 = t4 + mpi_wtime() -t3
if (i_ovr < n_ovr) then
if (tot_elem > 1) then
call imsr(tot_elem,works(idxs+1))
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 < n_ovr) 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 (.false.) then
open(70+me,position='append')
write(70+me,*) ' Workr on iteration ',i_ovr
write(70+me,'(8(i7,1x))') workr(1:iszr)
call flush(70+me)
close(70+me)
end if
if (debug) write(0,*) 'ISZR :',iszr
if (psb_is_large_desc(desc_a)) then
call psb_check_size(iszr,maskr,info)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_size')
goto 9999
end if
call psi_idx_cnv(iszr,workr,maskr,desc_p,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_p)
do i=1,iszs
idx = works(i)
n_col = psb_cd_get_local_cols(desc_p)
call psi_idx_ins_cnv(idx,lidx,desc_p,info)
if (psb_cd_get_local_cols(desc_p) > 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_check_size((counter_t+3),t_halo_in,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
counter_t=counter_t+3
if (.false.) write(0,*) me,' CDOVRBLD: Added t_halo_in ',&
&proc_id,lidx,idx
endif
end Do
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_p%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_p%glob_to_loc(idx)-np-1
call psb_check_size(n_col,desc_p%loc_to_glob,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_size')
goto 9999
end if
desc_p%glob_to_loc(idx)=n_col
desc_p%loc_to_glob(n_col)=idx
call psb_check_size((counter_t+3),t_halo_in,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
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_p%glob_to_loc(idx) < 0) Then
if (debug) write(0,*) me,'Wrong input to cdovrbld??',&
&idx,desc_p%glob_to_loc(idx)
End If
End Do
desc_p%matrix_data(psb_n_col_)=n_col
end if
end if
t2 = mpi_wtime()
!!$ desc_p%matrix_data(psb_n_row_)=desc_p%matrix_data(psb_n_col_)
!
! 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
!
If (i_ovr < (n_ovr)) Then
t_halo_in(counter_t)=-1
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_p,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)
t3 = mpi_wtime()
tl = tl +(t2-t1)
tch = tch +(t3-t2)
End Do
t1 = mpi_wtime()
desc_p%matrix_data(psb_m_)=psb_cd_get_global_rows(desc_a)
desc_p%matrix_data(psb_n_)=psb_cd_get_global_cols(desc_a)
tmp_halo(counter_h:)=-1
tmp_ovr_idx(counter_o:)=-1
!
! At this point we have gathered all the indices in the halo at
! N levels of overlap. Just call cnv_dsc. 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
!.... convert comunication stuctures....
! Note that we have to keep local_rows until the very end,
! because otherwise the halo build mechanism of cdasb
! will not work.
call psb_transfer(tmp_ovr_idx,desc_p%ovrlap_index,info)
call psb_transfer(tmp_halo,desc_p%halo_index,info)
call psb_cdasb(desc_p,info)
desc_p%matrix_data(psb_n_row_)=desc_p%matrix_data(psb_n_col_)
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
t2 = mpi_wtime()
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == act_abort) then
call psb_error(ictxt)
return
end if
return
End Subroutine psb_dcdovrbld

628
src/tools/psb_zcdovrbld.f90
Unescape Escape View File

@ -1,628 +0,0 @@
!!$
!!$ 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_zcdovrbld.f90
!
! Subroutine: psb_zcdovrbld
! This routine takes a matrix A with its descriptor, and builds the
! auxiliary descriptor corresponding to the number of overlap levels
! specified on input. This is the actual worker horse.....
! Note that n_ovr > 0 thanks to the caller routine.
!
! Parameters:
! n_ovr - integer. The number of overlap levels
! desc_p - type(<psb_desc_type>). The communication descriptor
! for the preconditioner.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! a - type(<psb_dspmat_type). The matrix upon which the preconditioner
! will be built.
! l_tmp_halo - integer. Input estimate for allocation sizes.
! l_tmp_ovr_idx - integer. Input estimate for allocation sizes.
! lworkr - integer. Input estimate for allocation sizes.
! lworks - integer. Input estimate for allocation sizes.
! info - integer. Possibly returns an error code
Subroutine psb_zcdovrbld(n_ovr,desc_p,desc_a,a,&
& l_tmp_halo,l_tmp_ovr_idx,lworks,lworkr,info)
use psb_descriptor_type
use psb_serial_mod
Use psi_mod
use psb_realloc_mod
use psb_error_mod
use psb_const_mod
use psb_penv_mod
use psb_tools_mod
use mpi
Implicit None
type(psb_zspmat_type),intent(in) :: a
type(psb_desc_type),intent(in) :: desc_a
type(psb_desc_type),intent(inout) :: desc_p
integer,intent(in) :: n_ovr
! Input estimates for allocation sizes. Could we do without these two???
Integer, Intent(in) :: l_tmp_halo,l_tmp_ovr_idx
Integer, Intent(inout) :: lworks, lworkr
integer, intent(out) :: info
type(psb_zspmat_type) :: blk
Integer, allocatable :: tmp_halo(:),tmp_ovr_idx(:)
Integer :: counter,counter_h, counter_o, counter_e,j,idx,gidx,proc,n_elem_recv,&
& n_elem_send,tot_recv,tot_elem,n_col,m,ictxt,np,me,dl_lda,lwork,&
& counter_t,n_elem,i_ovr,jj,i,proc_id,isz, mglob, glx,n_row, &
& idxr, idxs, lx, iszr, iszs, err_act, icomm, nxch, nsnd, nrcv,lidx
Integer,allocatable :: halo(:),works(:),workr(:),t_halo_in(:),&
& t_halo_out(:),temp(:),maskr(:)
Integer,allocatable :: brvindx(:),rvsz(:), bsdindx(:),sdsz(:)
Logical,Parameter :: debug=.false.
real(kind(1.d0)) :: t1,t2,t3,t4,t5,t6,t7, tl, tch
character(len=20) :: name, ch_err
if(psb_get_errstatus() /= 0) return
info=0
name='psb_cdovrbld'
call psb_erractionsave(err_act)
If(debug) Write(0,*)'cdovrbld begin'
ictxt = psb_cd_get_context(desc_a)
Call psb_info(ictxt,me,np)
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
tl = 0.0
tch = 0.0
t4 = 0.0
call psb_get_mpicomm(ictxt,icomm )
mglob = psb_cd_get_global_rows(desc_a)
m = psb_cd_get_local_rows(desc_a)
n_row = psb_cd_get_local_rows(desc_a)
n_col = psb_cd_get_local_cols(desc_a)
if (debug) write(0,*) me,' On entry to CDOVRBLD n_col:',n_col
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(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_p%ovrlap_elem(:) = -1
tmp_ovr_idx(:) = -1
tmp_halo(:) = -1
counter_e = 1
tot_recv = 0
counter_h = 1
counter_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_p%loc_to_glob)) then
info=-3
call psb_errpush(info,name)
goto 9999
endif
gidx = desc_p%loc_to_glob(idx)
call psb_check_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
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, we may ignore HcN.
!
!
Do i_ovr=1,n_ovr
if (debug) write(0,*) me,'Running on overlap level ',i_ovr,' of ',n_ovr
!
! 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
t1 = mpi_wtime()
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.
!
t3 = mpi_wtime()
!
! 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_p%loc_to_glob)) then
info=-3
call psb_errpush(info,name)
goto 9999
endif
gidx = desc_p%loc_to_glob(idx)
call psb_check_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
if (.not.psb_is_large_desc(desc_p)) then
call psb_check_size((counter_h+3),tmp_halo,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
end if
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_p%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_check_size((counter_o+3),tmp_ovr_idx,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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 < (n_ovr)) Then
n_elem = psb_sp_get_nnz_row(idx,a)
call psb_check_size((idxs+tot_elem+n_elem),works,info)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
Do jj=1,n_elem
works(idxs+tot_elem+jj)=desc_p%loc_to_glob(blk%ia2(jj))
End Do
tot_elem=tot_elem+n_elem
End If
Enddo
t4 = t4 + mpi_wtime() -t3
if (i_ovr < n_ovr) then
if (tot_elem > 1) then
call imsr(tot_elem,works(idxs+1))
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 < n_ovr) 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_a)) then
call psb_check_size(iszr,maskr,info)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_size')
goto 9999
end if
call psi_idx_cnv(iszr,workr,maskr,desc_p,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_p)
do i=1,iszs
idx = works(i)
n_col = psb_cd_get_local_cols(desc_p)
call psi_idx_ins_cnv(idx,lidx,desc_p,info)
if (psb_cd_get_local_cols(desc_p) > 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_check_size((counter_t+3),t_halo_in,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
counter_t=counter_t+3
if (.false.) write(0,*) me,' CDOVRBLD: Added t_halo_in ',&
&proc_id,lidx,idx
endif
end Do
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_p%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_p%glob_to_loc(idx)-np-1
call psb_check_size(n_col,desc_p%loc_to_glob,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_size')
goto 9999
end if
desc_p%glob_to_loc(idx)=n_col
desc_p%loc_to_glob(n_col)=idx
call psb_check_size((counter_t+3),t_halo_in,info,pad=-1)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_check_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
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_p%glob_to_loc(idx) < 0) Then
if (debug) write(0,*) me,'Wrong input to cdovrbld??',&
&idx,desc_p%glob_to_loc(idx)
End If
End Do
desc_p%matrix_data(psb_n_col_)=n_col
end if
end if
t2 = mpi_wtime()
!!$ desc_p%matrix_data(psb_n_row_)=desc_p%matrix_data(psb_n_col_)
!
! 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
!
If (i_ovr < (n_ovr)) Then
t_halo_in(counter_t)=-1
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_p,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)
t3 = mpi_wtime()
tl = tl +(t2-t1)
tch = tch +(t3-t2)
End Do
t1 = mpi_wtime()
desc_p%matrix_data(psb_m_)=psb_cd_get_global_rows(desc_a)
desc_p%matrix_data(psb_n_)=psb_cd_get_global_cols(desc_a)
tmp_halo(counter_h:)=-1
tmp_ovr_idx(counter_o:)=-1
!
! At this point we have gathered all the indices in the halo at
! N levels of overlap. Just call cnv_dsc. 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
!.... convert comunication stuctures....
! Note that we have to keep local_rows until the very end,
! because otherwise the halo build mechanism of cdasb
! will not work.
call psb_transfer(tmp_ovr_idx,desc_p%ovrlap_index,info)
call psb_transfer(tmp_halo,desc_p%halo_index,info)
call psb_cdasb(desc_p,info)
desc_p%matrix_data(psb_n_row_)=desc_p%matrix_data(psb_n_col_)
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
t2 = mpi_wtime()
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == act_abort) then
call psb_error(ictxt)
return
end if
return
End Subroutine psb_zcdovrbld
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