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565 lines
17 KiB
Fortran
565 lines
17 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_ihalo.f90
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!
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! Subroutine: psb_ihalom
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! This subroutine performs the exchange of the halo elements in a
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! distributed dense matrix between all the processes.
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!
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! Arguments:
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! x - integer(psb_ipk_),dimension(:,:). The local part of the dense matrix.
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! desc_a - type(psb_desc_type). The communication descriptor.
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! info - integer. Return code
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! alpha - real(optional). Scale factor.
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! jx - integer(optional). The starting column of the global matrix.
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! ik - integer(optional). The number of columns to gather.
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! work - real(optional). Work area.
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! tran - character(optional). Transpose exchange.
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! mode - integer(optional). Communication mode (see Swapdata)
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! data - integer Which index list in desc_a should be used
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! to retrieve rows, default psb_comm_halo_
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! psb_comm_halo_ use halo_index
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! psb_comm_ext_ use ext_index
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! psb_comm_ovrl_ use ovrl_index
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! psb_comm_mov_ use ovr_mst_idx
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!
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!
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subroutine psb_ihalom(x,desc_a,info,alpha,jx,ik,work,tran,mode,data)
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use psb_base_mod, psb_protect_name => psb_ihalom
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use psi_mod
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implicit none
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integer(psb_ipk_), intent(inout), target :: x(:,:)
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: alpha
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integer(psb_ipk_), intent(inout), optional, target :: work(:)
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integer(psb_ipk_), intent(in), optional :: mode,jx,ik,data
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character, intent(in), optional :: tran
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! locals
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integer(psb_ipk_) :: ictxt, np, me, &
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& err_act, m, n, iix, jjx, ix, ijx, nrow, k, maxk, liwork,&
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& imode, err,data_, ldx
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integer(psb_ipk_), pointer :: xp(:,:), iwork(:)
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character :: tran_
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character(len=20) :: name, ch_err
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logical :: aliw
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name='psb_ihalom'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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! check on blacs grid
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call psb_info(ictxt, me, np)
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if (np == -1) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = 1
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if (present(jx)) then
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ijx = jx
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else
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ijx = 1
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endif
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m = desc_a%get_global_rows()
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n = desc_a%get_global_cols()
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nrow = desc_a%get_local_rows()
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maxk=size(x,2)-ijx+1
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if(present(ik)) then
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if(ik > maxk) then
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k=maxk
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else
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k=ik
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end if
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else
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k = maxk
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end if
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if (present(tran)) then
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tran_ = psb_toupper(tran)
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else
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tran_ = 'N'
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endif
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if (present(data)) then
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data_ = data
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else
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data_ = psb_comm_halo_
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endif
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if (present(mode)) then
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imode = mode
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else
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imode = IOR(psb_swap_send_,psb_swap_recv_)
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endif
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ldx = size(x,1)
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! check vector correctness
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call psb_chkvect(m,ione,ldx,ix,ijx,desc_a,info,iix,jjx)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect'
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call psb_errpush(info,name,a_err=ch_err)
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end if
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if (iix /= 1) then
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info=psb_err_ix_n1_iy_n1_unsupported_
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call psb_errpush(info,name)
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end if
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err=info
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call psb_errcomm(ictxt,err)
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if(err /= 0) goto 9999
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! we should write an "iscal"
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!!$ if(present(alpha)) then
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!!$ if(alpha /= 1.d0) then
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!!$ do i=0, k-1
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!!$ call iscal(nrow,alpha,x(1,jjx+i),1)
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!!$ end do
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!!$ end if
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!!$ end if
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liwork=nrow
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if (present(work)) then
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if(size(work) >= liwork) then
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aliw=.false.
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iwork => work
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else
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aliw=.true.
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allocate(iwork(liwork),stat=info)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_realloc'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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end if
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else
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aliw=.true.
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allocate(iwork(liwork),stat=info)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_realloc'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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end if
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xp => x(iix:ldx,jjx:jjx+k-1)
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! exchange halo elements
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if(tran_ == 'N') then
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call psi_swapdata(imode,k,izero,xp,&
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& desc_a,iwork,info,data=data_)
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else if((tran_ == 'T').or.(tran_ == 'C')) then
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call psi_swaptran(imode,k,ione,xp,&
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& desc_a,iwork,info)
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else
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='invalid tran')
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goto 9999
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end if
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if(info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='PSI_iSwap...')
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goto 9999
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end if
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if (aliw) deallocate(iwork)
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nullify(iwork)
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ictxt,err_act)
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return
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end subroutine psb_ihalom
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!!$
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!!$ Parallel Sparse BLAS version 3.1
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|
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
|
|
!!$
|
|
!!$ 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.
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!!$
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!!$
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! Subroutine: psb_ihalov
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! This subroutine performs the exchange of the halo elements in a
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|
! distributed dense matrix between all the processes.
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|
!
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|
! Arguments:
|
|
! x - integer(psb_ipk_),dimension(:). The local part of the dense matrix.
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
! info - integer. Return code
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! alpha - real(optional). Scale factor.
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! jx - integer(optional). The starting column of the global matrix.
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! ik - integer(optional). The number of columns to gather.
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! work - real(optional). Work area.
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! tran - character(optional). Transpose exchange.
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! mode - integer(optional). Communication mode (see Swapdata)
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! data - integer Which index list in desc_a should be used
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! to retrieve rows, default psb_comm_halo_
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! psb_comm_halo_ use halo_index
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! psb_comm_ext_ use ext_index
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! psb_comm_ovrl_ use ovrl_index
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! psb_comm_mov_ use ovr_mst_idx
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!
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!
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subroutine psb_ihalov(x,desc_a,info,alpha,work,tran,mode,data)
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use psb_base_mod, psb_protect_name => psb_ihalov
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use psi_mod
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implicit none
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integer(psb_ipk_), intent(inout) :: x(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: alpha
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integer(psb_ipk_), intent(inout), optional, target :: work(:)
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integer(psb_ipk_), intent(in), optional :: mode,data
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character, intent(in), optional :: tran
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! locals
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integer(psb_ipk_) :: ictxt, np, me,&
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& err_act, m, n, iix, jjx, ix, ijx, nrow, imode,&
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& err, liwork, data_,ldx
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integer(psb_ipk_),pointer :: iwork(:)
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character :: tran_
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character(len=20) :: name, ch_err
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logical :: aliw
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name='psb_ihalov'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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! check on blacs grid
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call psb_info(ictxt, me, np)
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if (np == -1) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = 1
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ijx = 1
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m = desc_a%get_global_rows()
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n = desc_a%get_global_cols()
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nrow = desc_a%get_local_rows()
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! ncol = desc_a%get_local_cols()
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if (present(tran)) then
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tran_ = psb_toupper(tran)
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else
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tran_ = 'N'
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endif
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if (present(data)) then
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data_ = data
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else
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data_ = psb_comm_halo_
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endif
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if (present(mode)) then
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imode = mode
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else
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imode = IOR(psb_swap_send_,psb_swap_recv_)
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endif
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ldx = size(x,1)
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! check vector correctness
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call psb_chkvect(m,ione,ldx,ix,ijx,desc_a,info,iix,jjx)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect'
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call psb_errpush(info,name,a_err=ch_err)
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end if
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if (iix /= 1) then
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info=psb_err_ix_n1_iy_n1_unsupported_
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call psb_errpush(info,name)
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end if
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err=info
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call psb_errcomm(ictxt,err)
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if(err /= 0) goto 9999
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!!$ if(present(alpha)) then
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!!$ if(alpha /= 1.d0) then
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!!$ call dscal(nrow,alpha,x,1)
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!!$ end if
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!!$ end if
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liwork=nrow
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if (present(work)) then
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if(size(work) >= liwork) then
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aliw=.false.
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iwork => work
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else
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aliw=.true.
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allocate(iwork(liwork),stat=info)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_realloc'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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end if
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else
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aliw=.true.
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allocate(iwork(liwork),stat=info)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_realloc'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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end if
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! exchange halo elements
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if(tran_ == 'N') then
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call psi_swapdata(imode,izero,x(iix:size(x)),&
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& desc_a,iwork,info,data=data_)
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else if((tran_ == 'T').or.(tran_ == 'C')) then
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call psi_swaptran(imode,ione,x(iix:size(x)),&
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& desc_a,iwork,info)
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else
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='invalid tran')
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goto 9999
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end if
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if(info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='PSI_iswapdata')
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goto 9999
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end if
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if (aliw) deallocate(iwork)
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nullify(iwork)
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ictxt,err_act)
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return
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end subroutine psb_ihalov
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subroutine psb_ihalo_vect(x,desc_a,info,alpha,work,tran,mode,data)
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use psb_base_mod, psb_protect_name => psb_ihalo_vect
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use psi_mod
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implicit none
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type(psb_i_vect_type), intent(inout) :: x
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: alpha
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integer(psb_ipk_), target, optional, intent(inout) :: work(:)
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integer(psb_ipk_), intent(in), optional :: mode,data
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character, intent(in), optional :: tran
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! locals
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integer(psb_ipk_) :: ictxt, np, me,&
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& err_act, m, n, iix, jjx, ix, ijx, nrow, imode,&
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& err, liwork,data_
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integer(psb_ipk_),pointer :: iwork(:)
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character :: tran_
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character(len=20) :: name, ch_err
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logical :: aliw
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name='psb_ihalov'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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! check on blacs grid
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call psb_info(ictxt, me, np)
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if (np == -1) then
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info = psb_err_context_error_
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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 (.not.allocated(x%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = 1
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ijx = 1
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m = desc_a%get_global_rows()
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n = desc_a%get_global_cols()
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nrow = desc_a%get_local_rows()
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if (present(tran)) then
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tran_ = psb_toupper(tran)
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else
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tran_ = 'N'
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endif
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if (present(data)) then
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data_ = data
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else
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data_ = psb_comm_halo_
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endif
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if (present(mode)) then
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imode = mode
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else
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imode = IOR(psb_swap_send_,psb_swap_recv_)
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endif
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! check vector correctness
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call psb_chkvect(m,ione,x%get_nrows(),ix,ijx,desc_a,info,iix,jjx)
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|
if(info /= psb_success_) then
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|
info=psb_err_from_subroutine_
|
|
ch_err='psb_chkvect'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
end if
|
|
|
|
if (iix /= 1) then
|
|
info=psb_err_ix_n1_iy_n1_unsupported_
|
|
call psb_errpush(info,name)
|
|
end if
|
|
|
|
err=info
|
|
call psb_errcomm(ictxt,err)
|
|
if(err /= 0) goto 9999
|
|
|
|
if(present(alpha)) then
|
|
if(alpha /= done) then
|
|
call x%scal(alpha)
|
|
end if
|
|
end if
|
|
|
|
liwork=nrow
|
|
if (present(work)) then
|
|
if(size(work) >= liwork) then
|
|
iwork => work
|
|
aliw=.false.
|
|
else
|
|
aliw=.true.
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
else
|
|
aliw=.true.
|
|
allocate(iwork(liwork),stat=info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_realloc'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
! exchange halo elements
|
|
if(tran_ == 'N') then
|
|
call psi_swapdata(imode,izero,x%v,&
|
|
& desc_a,iwork,info,data=data_)
|
|
else if((tran_ == 'T').or.(tran_ == 'C')) then
|
|
call psi_swaptran(imode,ione,x%v,&
|
|
& desc_a,iwork,info)
|
|
else
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='invalid tran')
|
|
goto 9999
|
|
end if
|
|
|
|
if (info /= psb_success_) then
|
|
ch_err='PSI_swapdata'
|
|
call psb_errpush(psb_err_from_subroutine_,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if (aliw) deallocate(iwork)
|
|
nullify(iwork)
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psb_ihalo_vect
|