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623 lines
19 KiB
Fortran
623 lines
19 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006, 2010, 2015, 2017
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! Salvatore Filippone Cranfield University
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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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subroutine psi_renum_index(iperm,idx,info)
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use psi_mod, psi_protect_name => psi_renum_index
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use psb_serial_mod
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implicit none
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in) :: iperm(:)
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integer(psb_ipk_), intent(inout) :: idx(:)
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integer(psb_ipk_) :: i,j,k,nh
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i=1
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k=idx(i)
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do while (k /= -1)
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i = i+1
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nh = idx(i)
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do j = i+1, i+nh
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idx(j) = iperm(idx(j))
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enddo
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i = i + nh + 1
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nh = idx(i)
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do j = i+1, i+nh
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idx(j) = iperm(idx(j))
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enddo
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i = i + nh + 1
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k = idx(i)
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enddo
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end subroutine psi_renum_index
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subroutine psi_cnv_v2xch(ictxt, vidx_in, xch_idx,info)
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use psi_mod, psi_protect_name => psi_cnv_v2xch
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use psb_realloc_mod
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use psb_caf_mod
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implicit none
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integer(psb_ipk_), intent(in) :: ictxt, vidx_in(:)
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type(psb_xch_idx_type), intent(inout) :: xch_idx
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integer(psb_ipk_), intent(out) :: info
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! ....local scalars....
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integer(psb_ipk_) :: np, me, img
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integer(psb_ipk_) :: err_act
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integer(psb_ipk_) :: nxch, nsnd, nrcv, nesd,nerv, ip, j, k, ixch
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! ...parameters
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integer(psb_ipk_) :: debug_level, debug_unit
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logical, parameter :: debug=.false.
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character(len=20) :: name
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integer(psb_ipk_), allocatable :: buf_rmt_rcv_bnd(:)[:], buf_rmt_snd_bnd(:)[:]
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type(event_type), allocatable, save :: snd_done(:)[:]
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type(event_type), save :: rcv_done[*]
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name='psi_cnv_v2xch'
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call psb_get_erraction(err_act)
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debug_level = psb_get_debug_level()
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debug_unit = psb_get_debug_unit()
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info = psb_success_
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call psb_info(ictxt,me,np)
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me = this_image()
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np = num_images()
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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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call psb_get_xch_idx(vidx_in, nxch, nsnd, nrcv)
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xch_idx%max_buffer_size = max(nsnd,nrcv)
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call psb_amx(ictxt,xch_idx%max_buffer_size)
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if (info == 0) call psb_realloc(nxch,xch_idx%prcs_xch,info)
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if (info == 0) call psb_realloc(nxch,2,xch_idx%rmt_snd_bnd,info)
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if (info == 0) call psb_realloc(nxch,2,xch_idx%rmt_rcv_bnd,info)
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if (info == 0) call psb_realloc(nxch+1,xch_idx%loc_snd_bnd,info)
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if (info == 0) call psb_realloc(nxch+1,xch_idx%loc_rcv_bnd,info)
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if (info == 0) call psb_realloc(nsnd,xch_idx%loc_snd_idx,info)
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if (info == 0) call psb_realloc(nrcv,xch_idx%loc_rcv_idx,info)
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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(psb_err_from_subroutine_,name,a_err='Allocate')
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goto 9999
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end if
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ip = 1
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ixch = 1
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xch_idx%loc_snd_bnd(1) = 1
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xch_idx%loc_rcv_bnd(1) = 1
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if (if_caf) then
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if (allocated(buf_rmt_rcv_bnd)) deallocate(buf_rmt_rcv_bnd)
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if (allocated(buf_rmt_snd_bnd)) deallocate(buf_rmt_snd_bnd)
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if (allocated(snd_done)) deallocate(snd_done)
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allocate(buf_rmt_rcv_bnd(np*2)[*], buf_rmt_snd_bnd(np*2)[*], snd_done(np)[*])
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endif
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do
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if (ip > size(vidx_in)) then
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write(psb_err_unit,*) trim(name),': Warning: out of size of input vector '
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exit
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end if
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if (vidx_in(ip) == -1) exit
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xch_idx%prcs_xch(ixch) = vidx_in(ip)
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nerv = vidx_in(ip+psb_n_elem_recv_)
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!!$ write(*,*) 'Check on receive option ',ip,nerv,xch_idx%loc_rcv_bnd(ixch)
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xch_idx%loc_rcv_idx(xch_idx%loc_rcv_bnd(ixch):xch_idx%loc_rcv_bnd(ixch)+nerv-1) = &
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& vidx_in(ip+psb_n_elem_recv_+1:ip+psb_n_elem_recv_+nerv)
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nesd = vidx_in(ip+nerv+psb_n_elem_send_)
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!!$ write(*,*) 'Check on send option ',ip,nesd,xch_idx%loc_snd_bnd(ixch)
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xch_idx%loc_snd_idx(xch_idx%loc_snd_bnd(ixch):xch_idx%loc_snd_bnd(ixch)+nesd-1) = &
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& vidx_in(ip+nerv+psb_n_elem_send_+1:ip+nerv+psb_n_elem_send_+nesd)
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xch_idx%loc_rcv_bnd(ixch+1) = xch_idx%loc_rcv_bnd(ixch) + nerv
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xch_idx%loc_snd_bnd(ixch+1) = xch_idx%loc_snd_bnd(ixch) + nesd
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img = xch_idx%prcs_xch(ixch) + 1
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!Here I am assuming that all the data exchange between two images takes place in one exchange
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if (if_caf) then
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buf_rmt_rcv_bnd(me*2 - 1 : me*2)[img]= xch_idx%loc_rcv_bnd(ixch:ixch+1)
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buf_rmt_snd_bnd(me*2 - 1 : me*2)[img]= xch_idx%loc_snd_bnd(ixch:ixch+1)
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event post(snd_done(me)[img])
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event wait(snd_done(img))
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xch_idx%rmt_rcv_bnd(ixch,1:2)=buf_rmt_rcv_bnd(img*2 - 1 : img*2)
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xch_idx%rmt_snd_bnd(ixch,1:2)=buf_rmt_snd_bnd(img*2 - 1 : img*2)
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else
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call psb_snd(ictxt,xch_idx%loc_rcv_bnd(ixch:ixch+1),xch_idx%prcs_xch(ixch))
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call psb_snd(ictxt,xch_idx%loc_snd_bnd(ixch:ixch+1),xch_idx%prcs_xch(ixch))
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call psb_rcv(ictxt,xch_idx%rmt_rcv_bnd(ixch,1:2),xch_idx%prcs_xch(ixch))
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call psb_rcv(ictxt,xch_idx%rmt_snd_bnd(ixch,1:2),xch_idx%prcs_xch(ixch))
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endif
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ip = ip+nerv+nesd+3
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ixch = ixch + 1
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end do
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xch_idx%rmt_rcv_bnd(:,2) = xch_idx%rmt_rcv_bnd(:,2) - 1
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xch_idx%rmt_snd_bnd(:,2) = xch_idx%rmt_snd_bnd(:,2) - 1
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if (if_caf) then
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if (allocated(buf_rmt_rcv_bnd)) deallocate(buf_rmt_rcv_bnd)
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if (allocated(buf_rmt_snd_bnd)) deallocate(buf_rmt_snd_bnd)
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if (allocated(snd_done)) deallocate(snd_done)
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sync all
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endif
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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 psi_cnv_v2xch
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subroutine psi_cnv_dsc(halo_in,ovrlap_in,ext_in,cdesc, info, mold)
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use psi_mod, psi_protect_name => psi_cnv_dsc
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use psb_realloc_mod
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implicit none
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! ....scalars parameters....
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integer(psb_ipk_), intent(in) :: halo_in(:), ovrlap_in(:),ext_in(:)
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type(psb_desc_type), intent(inout) :: cdesc
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integer(psb_ipk_), intent(out) :: info
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class(psb_i_base_vect_type), optional, intent(in) :: mold
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! ....local scalars....
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integer(psb_ipk_) :: np,me
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integer(psb_ipk_) :: ictxt, err_act,nxch,nsnd,nrcv,j,k
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! ...local array...
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integer(psb_ipk_), allocatable :: idx_out(:), tmp_mst_idx(:)
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! ...parameters
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integer(psb_ipk_) :: debug_level, debug_unit
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logical, parameter :: debug=.false.
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character(len=20) :: name
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name='psi_cnv_desc'
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call psb_get_erraction(err_act)
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debug_level = psb_get_debug_level()
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debug_unit = psb_get_debug_unit()
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info = psb_success_
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ictxt = cdesc%get_context()
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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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cdesc%max_buffer_size=0
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! first the halo index
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if (debug_level>0) write(debug_unit,*) me,'Calling crea_index on halo',&
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& size(halo_in)
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call psi_crea_index(cdesc,halo_in, idx_out,.false.,nxch,nsnd,nrcv,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_crea_index')
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goto 9999
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end if
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call psb_move_alloc(idx_out,cdesc%halo_index,info)
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cdesc%max_buffer_size = max(cdesc%max_buffer_size, nsnd, nrcv)
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call psi_cnv_v2xch(ictxt, cdesc%halo_index, cdesc%halo_xch,info)
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if (debug_level>0) write(debug_unit,*) me,'Done crea_index on halo'
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if (debug_level>0) write(debug_unit,*) me,'Calling crea_index on ext'
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! then ext index
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if (debug_level>0) write(debug_unit,*) me,'Calling crea_index on ext'
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call psi_crea_index(cdesc,ext_in, idx_out,.false.,nxch,nsnd,nrcv,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_crea_index')
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goto 9999
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end if
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call psb_move_alloc(idx_out,cdesc%ext_index,info)
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cdesc%max_buffer_size = max(cdesc%max_buffer_size, nsnd, nrcv)
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call psi_cnv_v2xch(ictxt, cdesc%ext_index, cdesc%ext_xch,info)
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if (debug_level>0) write(debug_unit,*) me,'Done crea_index on ext'
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if (debug_level>0) write(debug_unit,*) me,'Calling crea_index on ovrlap'
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! then the overlap index
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call psi_crea_index(cdesc,ovrlap_in, idx_out,.true.,nxch,nsnd,nrcv,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_crea_index')
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goto 9999
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end if
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call psb_move_alloc(idx_out,cdesc%ovrlap_index,info)
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cdesc%max_buffer_size = max(cdesc%max_buffer_size, nsnd, nrcv)
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call psi_cnv_v2xch(ictxt, cdesc%ovrlap_index, cdesc%ovrlap_xch,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_move_alloc')
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goto 9999
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end if
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! next ovrlap_elem
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if (debug_level>0) write(debug_unit,*) me,'Calling crea_ovr_elem'
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call psi_crea_ovr_elem(me,cdesc%ovrlap_index,cdesc%ovrlap_elem,info)
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if (debug_level>0) write(debug_unit,*) me,'Done crea_ovr_elem'
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_crea_ovr_elem')
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goto 9999
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end if
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! Extract ovr_mst_idx from ovrlap_elem
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if (debug_level>0) write(debug_unit,*) me,'Calling bld_ovr_mst'
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call psi_bld_ovr_mst(me,cdesc%ovrlap_elem,tmp_mst_idx,info)
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if (info == psb_success_) call psi_crea_index(cdesc,&
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& tmp_mst_idx,idx_out,.false.,nxch,nsnd,nrcv,info)
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if (debug_level>0) write(debug_unit,*) me,'Done crea_indx'
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_bld_ovr_mst')
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goto 9999
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end if
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call psb_move_alloc(idx_out,cdesc%ovr_mst_idx,info)
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cdesc%max_buffer_size = max(cdesc%max_buffer_size, nsnd, nrcv)
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call psi_cnv_v2xch(ictxt, cdesc%ovr_mst_idx, cdesc%ovr_mst_xch,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_move_alloc')
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goto 9999
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end if
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|
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! finally bnd_elem
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call psi_crea_bnd_elem(idx_out,cdesc,info)
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if (info == psb_success_) call psb_move_alloc(idx_out,cdesc%bnd_elem,info)
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|
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call cdesc%v_halo_index%bld(cdesc%halo_index,mold=mold)
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call cdesc%v_ext_index%bld(cdesc%ext_index,mold=mold)
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call cdesc%v_ovrlap_index%bld(cdesc%ovrlap_index,mold=mold)
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call cdesc%v_ovr_mst_idx%bld(cdesc%ovr_mst_idx,mold=mold)
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|
|
|
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if (info /= psb_success_) then
|
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call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_crea_bnd_elem')
|
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goto 9999
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end if
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if (debug_level>0) write(debug_unit,*) me,'Done crea_bnd_elem'
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|
|
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call psb_erractionrestore(err_act)
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return
|
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|
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9999 call psb_error_handler(ictxt,err_act)
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|
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return
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end subroutine psi_cnv_dsc
|
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|
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subroutine psi_inner_cnvs(x,hashmask,hashv,glb_lc)
|
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use psi_mod, psi_protect_name => psi_inner_cnvs
|
|
|
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integer(psb_ipk_), intent(in) :: hashmask,hashv(0:),glb_lc(:,:)
|
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integer(psb_ipk_), intent(inout) :: x
|
|
|
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integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
|
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!
|
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! When a large descriptor is assembled the indices
|
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! are kept in a (hashed) list of ordered lists.
|
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! Thus we first hash the index, then we do a binary search on the
|
|
! ordered sublist. The hashing is based on the low-order bits
|
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! for a width of psb_hash_bits
|
|
!
|
|
|
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key = x
|
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ih = iand(key,hashmask)
|
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idx = hashv(ih)
|
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nh = hashv(ih+1) - hashv(ih)
|
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if (nh > 0) then
|
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tmp = -1
|
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lb = idx
|
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ub = idx+nh-1
|
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do
|
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if (lb>ub) exit
|
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lm = (lb+ub)/2
|
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if (key == glb_lc(lm,1)) then
|
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tmp = lm
|
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exit
|
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else if (key<glb_lc(lm,1)) then
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ub = lm - 1
|
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else
|
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lb = lm + 1
|
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end if
|
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end do
|
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else
|
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tmp = -1
|
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end if
|
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if (tmp > 0) then
|
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x = glb_lc(tmp,2)
|
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else
|
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x = tmp
|
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end if
|
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end subroutine psi_inner_cnvs
|
|
|
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subroutine psi_inner_cnvs2(x,y,hashmask,hashv,glb_lc)
|
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use psi_mod, psi_protect_name => psi_inner_cnvs2
|
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integer(psb_ipk_), intent(in) :: hashmask,hashv(0:),glb_lc(:,:)
|
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integer(psb_ipk_), intent(in) :: x
|
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integer(psb_ipk_), intent(out) :: y
|
|
|
|
integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
|
|
!
|
|
! When a large descriptor is assembled the indices
|
|
! are kept in a (hashed) list of ordered lists.
|
|
! Thus we first hash the index, then we do a binary search on the
|
|
! ordered sublist. The hashing is based on the low-order bits
|
|
! for a width of psb_hash_bits
|
|
!
|
|
|
|
key = x
|
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ih = iand(key,hashmask)
|
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idx = hashv(ih)
|
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nh = hashv(ih+1) - hashv(ih)
|
|
if (nh > 0) then
|
|
tmp = -1
|
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lb = idx
|
|
ub = idx+nh-1
|
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do
|
|
if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
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if (key == glb_lc(lm,1)) then
|
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tmp = lm
|
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exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
y = glb_lc(tmp,2)
|
|
else
|
|
y = tmp
|
|
end if
|
|
end subroutine psi_inner_cnvs2
|
|
|
|
|
|
subroutine psi_inner_cnv1(n,x,hashmask,hashv,glb_lc,mask)
|
|
use psi_mod, psi_protect_name => psi_inner_cnv1
|
|
integer(psb_ipk_), intent(in) :: n,hashmask,hashv(0:),glb_lc(:,:)
|
|
logical, intent(in), optional :: mask(:)
|
|
integer(psb_ipk_), intent(inout) :: x(:)
|
|
|
|
integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
|
|
!
|
|
! When a large descriptor is assembled the indices
|
|
! are kept in a (hashed) list of ordered lists.
|
|
! Thus we first hash the index, then we do a binary search on the
|
|
! ordered sublist. The hashing is based on the low-order bits
|
|
! for a width of psb_hash_bits
|
|
!
|
|
if (present(mask)) then
|
|
do i=1, n
|
|
if (mask(i)) then
|
|
key = x(i)
|
|
ih = iand(key,hashmask)
|
|
idx = hashv(ih)
|
|
nh = hashv(ih+1) - hashv(ih)
|
|
if (nh > 0) then
|
|
tmp = -1
|
|
lb = idx
|
|
ub = idx+nh-1
|
|
do
|
|
if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
|
if (key == glb_lc(lm,1)) then
|
|
tmp = lm
|
|
exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
x(i) = glb_lc(tmp,2)
|
|
else
|
|
x(i) = tmp
|
|
end if
|
|
end if
|
|
end do
|
|
else
|
|
do i=1, n
|
|
key = x(i)
|
|
ih = iand(key,hashmask)
|
|
idx = hashv(ih)
|
|
nh = hashv(ih+1) - hashv(ih)
|
|
if (nh > 0) then
|
|
tmp = -1
|
|
lb = idx
|
|
ub = idx+nh-1
|
|
do
|
|
if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
|
if (key == glb_lc(lm,1)) then
|
|
tmp = lm
|
|
exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
x(i) = glb_lc(tmp,2)
|
|
else
|
|
x(i) = tmp
|
|
end if
|
|
end do
|
|
end if
|
|
end subroutine psi_inner_cnv1
|
|
|
|
subroutine psi_inner_cnv2(n,x,y,hashmask,hashv,glb_lc,mask)
|
|
use psi_mod, psi_protect_name => psi_inner_cnv2
|
|
integer(psb_ipk_), intent(in) :: n, hashmask,hashv(0:),glb_lc(:,:)
|
|
logical, intent(in),optional :: mask(:)
|
|
integer(psb_ipk_), intent(in) :: x(:)
|
|
integer(psb_ipk_), intent(out) :: y(:)
|
|
|
|
integer(psb_ipk_) :: i, ih, key, idx,nh,tmp,lb,ub,lm
|
|
!
|
|
! When a large descriptor is assembled the indices
|
|
! are kept in a (hashed) list of ordered lists.
|
|
! Thus we first hash the index, then we do a binary search on the
|
|
! ordered sublist. The hashing is based on the low-order bits
|
|
! for a width of psb_hash_bits
|
|
!
|
|
if (present(mask)) then
|
|
do i=1, n
|
|
if (mask(i)) then
|
|
key = x(i)
|
|
ih = iand(key,hashmask)
|
|
if (ih > ubound(hashv,1) ) then
|
|
write(psb_err_unit,*) ' In inner cnv: ',ih,ubound(hashv)
|
|
end if
|
|
idx = hashv(ih)
|
|
nh = hashv(ih+1) - hashv(ih)
|
|
if (nh > 0) then
|
|
tmp = -1
|
|
lb = idx
|
|
ub = idx+nh-1
|
|
do
|
|
if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
|
if (key == glb_lc(lm,1)) then
|
|
tmp = lm
|
|
exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
y(i) = glb_lc(tmp,2)
|
|
else
|
|
y(i) = tmp
|
|
end if
|
|
end if
|
|
end do
|
|
else
|
|
do i=1, n
|
|
key = x(i)
|
|
ih = iand(key,hashmask)
|
|
if (ih > ubound(hashv,1) ) then
|
|
write(psb_err_unit,*) ' In inner cnv: ',ih,ubound(hashv)
|
|
end if
|
|
idx = hashv(ih)
|
|
nh = hashv(ih+1) - hashv(ih)
|
|
if (nh > 0) then
|
|
tmp = -1
|
|
lb = idx
|
|
ub = idx+nh-1
|
|
do
|
|
if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
|
if (key == glb_lc(lm,1)) then
|
|
tmp = lm
|
|
exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
y(i) = glb_lc(tmp,2)
|
|
else
|
|
y(i) = tmp
|
|
end if
|
|
end do
|
|
end if
|
|
end subroutine psi_inner_cnv2
|
|
|
|
subroutine psi_bld_ovr_mst(me,ovrlap_elem,mst_idx,info)
|
|
use psi_mod, psi_protect_name => psi_bld_ovr_mst
|
|
|
|
use psb_realloc_mod
|
|
implicit none
|
|
|
|
! ....scalars parameters....
|
|
integer(psb_ipk_), intent(in) :: me, ovrlap_elem(:,:)
|
|
integer(psb_ipk_), allocatable, intent(out) :: mst_idx(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_ipk_) :: i, j, proc, nov,isz, ip, err_act, idx
|
|
character(len=20) :: name
|
|
|
|
name='psi_bld_ovr_mst'
|
|
call psb_get_erraction(err_act)
|
|
|
|
nov = size(ovrlap_elem,1)
|
|
isz = 3*nov+1
|
|
call psb_realloc(isz,mst_idx,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='reallocate')
|
|
goto 9999
|
|
end if
|
|
mst_idx = -1
|
|
j = 1
|
|
do i=1, nov
|
|
proc = ovrlap_elem(i,3)
|
|
if (me /= proc) then
|
|
idx = ovrlap_elem(i,1)
|
|
mst_idx(j+0) = proc
|
|
mst_idx(j+1) = 1
|
|
mst_idx(j+2) = idx
|
|
j = j + 3
|
|
end if
|
|
end do
|
|
mst_idx(j) = -1
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
|
|
end subroutine psi_bld_ovr_mst
|
|
|