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723 lines
24 KiB
Fortran
723 lines
24 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 3.1
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!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the PSBLAS group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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! File: psb_scdbldext.f90
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!
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! Subroutine: psb_scdbldext
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! This routine takes a matrix A with its descriptor, and builds the
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! auxiliary descriptor corresponding to the number of overlap levels
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! specified on input.
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!
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! Arguments:
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! a - type(psb_sspmat_type). The input sparse matrix.
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! desc_a - type(psb_desc_type). The input communication descriptor.
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! novr - integer. The number of overlap levels.
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! desc_ov - type(psb_desc_type). The auxiliary output communication
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! descriptor.
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! info - integer. Return code.
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! extype - integer. Choice of type of overlap:
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! psb_ovt_xhal_: build a descriptor with an extended
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! stencil, i.e. enlarge the existing
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! halo by novr additional layers.
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! psb_ovt_asov_: build a descriptor suitable
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! for Additive Schwarz preconditioner.
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! This last choice implies that:
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! a. The novr halo layers are added to
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! the overlap;
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! b. The novr layers are also copied to
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! the ext_ structure to provide
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! the mapping between the base
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! descriptor and the overlapped one.
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! c. The (novr+1)-th layer becomes the
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! new halo.
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!
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Subroutine psb_scdbldext(a,desc_a,novr,desc_ov,info, extype)
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use psb_base_mod, psb_protect_name => psb_scdbldext
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use psi_mod
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#ifdef MPI_MOD
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use mpi
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#endif
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Implicit None
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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! .. Array Arguments ..
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integer(psb_ipk_), intent(in) :: novr
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Type(psb_sspmat_type), Intent(in) :: a
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Type(psb_desc_type), Intent(in), target :: desc_a
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Type(psb_desc_type), Intent(out) :: desc_ov
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in),optional :: extype
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! .. Local Scalars ..
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integer(psb_ipk_) :: i, j, err_act,m,&
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& lovr, lworks,lworkr, n_row,n_col, n_col_prev, &
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& index_dim,elem_dim, l_tmp_ovr_idx,l_tmp_halo, nztot,nhalo
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integer(psb_ipk_) :: counter,counter_h, counter_o, counter_e,idx,gidx,proc,n_elem_recv,&
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& n_elem_send,tot_recv,tot_elem,cntov_o,&
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& counter_t,n_elem,i_ovr,jj,proc_id,isz, &
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& idxr, idxs, iszr, iszs, nxch, nsnd, nrcv,lidx, extype_
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integer(psb_mpik_) :: icomm, ictxt, me, np, minfo
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integer(psb_ipk_), allocatable :: irow(:), icol(:)
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integer(psb_ipk_), allocatable :: tmp_halo(:),tmp_ovr_idx(:), orig_ovr(:)
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integer(psb_ipk_),allocatable :: halo(:),works(:),workr(:),t_halo_in(:),&
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& t_halo_out(:),temp(:),maskr(:)
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integer(psb_mpik_),allocatable :: brvindx(:),rvsz(:), bsdindx(:),sdsz(:)
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integer(psb_ipk_) :: debug_level, debug_unit
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integer(psb_ipk_) :: ierr(5)
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character(len=20) :: name, ch_err
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name='psb_scdbldext'
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info = psb_success_
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if (psb_errstatus_fatal()) return
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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if (.not.desc_a%is_ok()) then
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info = psb_err_invalid_cd_state_
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call psb_errpush(info,name)
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goto 9999
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end if
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ictxt = desc_a%get_context()
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icomm = desc_a%get_mpic()
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Call psb_info(ictxt, me, np)
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If (debug_level >= psb_debug_outer_) &
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& Write(debug_unit,*) me,' ',trim(name),&
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& ': start',novr
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if (present(extype)) then
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extype_ = extype
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else
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extype_ = psb_ovt_xhal_
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endif
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m = desc_a%get_local_rows()
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n_row = desc_a%get_local_rows()
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n_col = desc_a%get_local_cols()
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nhalo = n_col-m
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if (novr<0) then
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info=psb_err_iarg_neg_
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ierr(1)=1; ierr(2)=novr
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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endif
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select case(extype_)
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case(psb_ovt_xhal_,psb_ovt_asov_)
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case default
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ierr(1)=5; ierr(2)=extype_
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call psb_errpush(psb_err_input_value_invalid_i_,&
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& name,i_err=ierr)
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goto 9999
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end select
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& ': Calling desccpy'
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call psb_cdcpy(desc_a,desc_ov,info)
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if (psb_errstatus_fatal()) then
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info=psb_err_from_subroutine_
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call psb_errpush(info,name,a_err='psb_cdcpy')
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goto 9999
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end if
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),&
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& ': From desccpy'
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if ((novr == 0).or.(np==1)) then
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!
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! Just copy the input.
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! Should we return also when is_repl() ?
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!
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return
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endif
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if ((extype_ == psb_ovt_asov_).and.&
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& (.not.desc_ov%indxmap%row_extendable())) then
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! Need to switch to a format that can support overlap,
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! so far: LIST or HASH. Encapsulate choice
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! in a separate method.
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call psb_cd_switch_ovl_indxmap(desc_ov,info)
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end if
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call psb_cd_set_ovl_bld(desc_ov,info)
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If (debug_level >= psb_debug_outer_)then
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Write(debug_unit,*) me,' ',trim(name),&
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& ': BEGIN ',nhalo, desc_ov%indxmap%get_state()
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call psb_barrier(ictxt)
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endif
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!
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! Ok, since we are only estimating, do it as follows:
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! LOVR= (NNZ/NROW)*N_HALO*NOVR This assumes that the local average
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! nonzeros per row is the same as the global.
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!
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nztot = a%get_nzeros()
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if (nztot>0) then
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lovr = ((nztot+m-1)/m)*nhalo*novr
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lworks = ((nztot+m-1)/m)*nhalo
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lworkr = ((nztot+m-1)/m)*nhalo
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else
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info = -1
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call psb_errpush(info,name)
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goto 9999
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endif
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If (debug_level >= psb_debug_outer_)&
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& Write(debug_unit,*) me,' ',trim(name),':ovr_est done',novr,lovr
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index_dim = size(desc_a%halo_index)
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elem_dim = size(desc_a%halo_index)
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l_tmp_ovr_idx = novr*(3*Max(2*index_dim,1)+1)
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l_tmp_halo = novr*(3*Size(desc_a%halo_index))
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desc_ov%base_desc => desc_a
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If (debug_level >= psb_debug_outer_) then
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Write(debug_unit,*) me,' ',trim(name),':Start',&
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& lworks,lworkr, desc_ov%indxmap%get_state()
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call psb_barrier(ictxt)
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endif
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Allocate(brvindx(np+1),rvsz(np),sdsz(np),bsdindx(np+1),stat=info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
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goto 9999
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end if
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Allocate(works(lworks),workr(lworkr),t_halo_in(l_tmp_halo),&
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& t_halo_out(l_tmp_halo), temp(lworkr),stat=info)
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if (info == psb_success_) allocate(orig_ovr(l_tmp_ovr_idx),&
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& tmp_ovr_idx(l_tmp_ovr_idx), &
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& tmp_halo(l_tmp_halo), halo(size(desc_a%halo_index)),stat=info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_alloc_dealloc_,name)
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goto 9999
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end if
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halo(:) = desc_a%halo_index(:)
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tmp_ovr_idx(:) = -1
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orig_ovr(:) = -1
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tmp_halo(:) = -1
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counter_e = 1
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tot_recv = 0
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counter_t = 1
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counter_h = 1
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counter_o = 1
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cntov_o = 1
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! Init overlap with desc_a%ovrlap (if any)
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counter = 1
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Do While (desc_a%ovrlap_index(counter) /= -1)
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proc = desc_a%ovrlap_index(counter+psb_proc_id_)
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n_elem_recv = desc_a%ovrlap_index(counter+psb_n_elem_recv_)
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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)
|
|
call desc_ov%indxmap%l2g(idx,gidx,info)
|
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If (gidx < 0) then
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info=-3
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call psb_errpush(info,name)
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goto 9999
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|
endif
|
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call psb_ensure_size((cntov_o+3),orig_ovr,info,pad=-ione)
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if (info /= psb_success_) then
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info=psb_err_from_subroutine_
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|
call psb_errpush(info,name,a_err='psb_ensure_size')
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goto 9999
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|
end if
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orig_ovr(cntov_o)=proc
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orig_ovr(cntov_o+1)=1
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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+3
|
|
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_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ':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
|
|
|
|
n_col_prev = desc_ov%get_local_cols()
|
|
|
|
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_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ': 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)
|
|
call desc_ov%l2g(idx,gidx,info)
|
|
If (gidx < 0) then
|
|
info=-3
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
call psb_ensure_size((counter_o+3),tmp_ovr_idx,info,pad=-ione)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
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=-ione)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
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_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ':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)
|
|
call desc_ov%l2g(idx,gidx,info)
|
|
If (gidx < 0) then
|
|
info=-3
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
call psb_ensure_size((counter_o+3),tmp_ovr_idx,info,pad=-ione)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
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
|
|
call a%csget(idx,idx,n_elem,irow,icol,info)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='csget')
|
|
goto 9999
|
|
end if
|
|
|
|
call psb_ensure_size((idxs+tot_elem+n_elem),works,info)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
call desc_ov%l2g(icol(1:n_elem),&
|
|
& works(idxs+tot_elem+1:idxs+tot_elem+n_elem),&
|
|
& info)
|
|
|
|
tot_elem=tot_elem+n_elem
|
|
End If
|
|
|
|
Enddo
|
|
|
|
|
|
if (i_ovr <= novr) then
|
|
if (tot_elem > 1) then
|
|
call psb_msort_unique(works(idxs+1:idxs+tot_elem),i)
|
|
tot_elem=i
|
|
endif
|
|
|
|
sdsz(proc+1) = tot_elem
|
|
idxs = idxs + tot_elem
|
|
end if
|
|
counter = counter+n_elem_send+3
|
|
|
|
Enddo
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ':End phase 1', 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,psb_mpi_def_integer,rvsz,1,psb_mpi_def_integer,icomm,minfo)
|
|
if (minfo /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='mpi_alltoall')
|
|
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 (psb_errstatus_fatal()) then
|
|
info=psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
lworkr = max(iszr,1)
|
|
end if
|
|
|
|
call mpi_alltoallv(works,sdsz,bsdindx,psb_mpi_ipk_integer,&
|
|
& workr,rvsz,brvindx,psb_mpi_ipk_integer,icomm,minfo)
|
|
if (minfo /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='mpi_alltoallv')
|
|
goto 9999
|
|
end if
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),': ISZR :',iszr
|
|
|
|
call psb_ensure_size(iszr,maskr,info)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='psb_ensure_size')
|
|
goto 9999
|
|
end if
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ': going for first idx_cnv', desc_ov%indxmap%get_state()
|
|
|
|
call desc_ov%indxmap%g2l(workr(1:iszr),maskr(1:iszr),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
|
|
! Eliminate duplicates from request
|
|
call psb_msort_unique(works(1:j),iszs)
|
|
|
|
!
|
|
! fnd_owner on desc_a because we want the procs who
|
|
! owned the rows from the beginning!
|
|
!
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ': going for fnd_owner', desc_ov%indxmap%get_state()
|
|
call desc_a%fnd_owner(works(1:iszs),temp,info)
|
|
n_col = desc_ov%get_local_cols()
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ': Done fnd_owner', desc_ov%indxmap%get_state()
|
|
|
|
do i=1,iszs
|
|
idx = works(i)
|
|
n_col = desc_ov%get_local_cols()
|
|
call desc_ov%indxmap%g2l_ins(idx,lidx,info)
|
|
if (desc_ov%get_local_cols() > 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=-ione)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
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
|
|
endif
|
|
end Do
|
|
n_col = desc_ov%get_local_cols()
|
|
|
|
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_level >= psb_debug_outer_) then
|
|
write(debug_unit,*) me,' ',trim(name),':Checktmp_o_i 1',tmp_ovr_idx(1:10)
|
|
write(debug_unit,*) me,' ',trim(name),':Calling Crea_index'
|
|
end if
|
|
|
|
call psi_crea_index(desc_ov,t_halo_in,t_halo_out,.false.,&
|
|
& nxch,nsnd,nrcv,info)
|
|
|
|
if (debug_level >= psb_debug_outer_) then
|
|
write(debug_unit,*) me,' ',trim(name),':Done Crea_Index'
|
|
call psb_barrier(ictxt)
|
|
end if
|
|
call psb_move_alloc(t_halo_out,halo,info)
|
|
!
|
|
! At this point we have built the halo necessary for I_OVR+1.
|
|
!
|
|
End If
|
|
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.
|
|
!
|
|
call psb_move_alloc(orig_ovr,desc_ov%ovrlap_index,info)
|
|
call psb_ensure_size((counter_h+counter_t+1),tmp_halo,info,pad=-ione)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,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_move_alloc(tmp_halo,desc_ov%halo_index,info)
|
|
deallocate(tmp_ovr_idx,stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,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 desc_ov%indxmap%set_lr(n_col_prev)
|
|
call psb_ensure_size((cntov_o+counter_o+1),orig_ovr,info,pad=-ione)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,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_move_alloc(orig_ovr,desc_ov%ovrlap_index,info)
|
|
deallocate(tmp_ovr_idx,stat=info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='deallocate')
|
|
goto 9999
|
|
end if
|
|
tmp_halo(counter_h:) = -1
|
|
call psb_move_alloc(tmp_halo,desc_ov%ext_index,info)
|
|
call psb_move_alloc(t_halo_in,desc_ov%halo_index,info)
|
|
case default
|
|
ierr(1)=5; ierr(2)=extype_
|
|
call psb_errpush(psb_err_input_value_invalid_i_,name,i_err=ierr)
|
|
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_level >= psb_debug_outer_) then
|
|
write(debug_unit,*) me,' ',trim(name),': converting indexes'
|
|
call psb_barrier(ictxt)
|
|
end if
|
|
|
|
call psb_icdasb(desc_ov,info,ext_hv=.true.)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err='icdasdb')
|
|
goto 9999
|
|
end if
|
|
|
|
call psb_cd_set_ovl_asb(desc_ov,info)
|
|
|
|
if (info == psb_success_) then
|
|
if (allocated(irow)) deallocate(irow,stat=info)
|
|
if ((info == psb_success_).and.allocated(icol)) &
|
|
& deallocate(icol,stat=info)
|
|
if (info /= psb_success_) then
|
|
ierr(1) = info
|
|
call psb_errpush(psb_err_from_subroutine_ai_,name, &
|
|
& a_err='deallocate',i_err=ierr)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),': end'
|
|
|
|
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_scdbldext
|
|
|