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130 lines
5.2 KiB
Fortran
130 lines
5.2 KiB
Fortran
!
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!
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! AMG4PSBLAS version 1.0
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! Algebraic Multigrid Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.7)
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!
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! (C) Copyright 2021
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!
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! Salvatore Filippone
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! Pasqua D'Ambra
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! Fabio Durastante
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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 AMG4PSBLAS 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 AMG4PSBLAS 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 amg_s_base_onelev_map_rstr_v(lv,alpha,vect_u,beta,vect_v,info,&
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& work,vtx,vty)
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use psb_base_mod
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use amg_s_onelev_mod, amg_protect_name => amg_s_base_onelev_map_rstr_v
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implicit none
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class(amg_s_onelev_type), target, intent(inout) :: lv
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real(psb_spk_), intent(in) :: alpha, beta
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type(psb_s_vect_type), intent(inout) :: vect_u, vect_v
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integer(psb_ipk_), intent(out) :: info
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real(psb_spk_), optional :: work(:)
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type(psb_s_vect_type), optional, target, intent(inout) :: vtx,vty
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!!$ write(0,*) 'New map_rstr',lv%remap_data%ac_pre_remap%is_asb()
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if (lv%remap_data%ac_pre_remap%is_asb()) then
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!
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! Remap has happened, deal with it
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!
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!!$ write(0,*) 'Remap handling not implemented yet '
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block
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type(psb_ctxt_type) :: ctxt, nctxt
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integer(psb_ipk_) :: i,j,ip, idest, nsrc, nrl, kp
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integer(psb_ipk_) :: me, np, rme, rnp
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real(psb_spk_), allocatable :: rsnd(:), rrcv(:)
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type(psb_s_vect_type) :: tv
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ctxt = lv%remap_data%desc_ac_pre_remap%get_ctxt()
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call psb_info(ctxt,me,np)
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nctxt = lv%desc_ac%get_ctxt()
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call psb_info(nctxt,rme,rnp)
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!!$ write(0,*) 'New context ',rme,rnp
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idest = lv%remap_data%idest
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associate(isrc => lv%remap_data%isrc, nrsrc => lv%remap_data%nrsrc)
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!!$ write(0,*) 'Should apply maps, then send data from ',me,' to ',idest
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!!$ if (rme >= 0) write(0,*) rme, ' Receiving data from ',isrc(:)
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nsrc = size(isrc)
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nrl = lv%remap_data%desc_ac_pre_remap%get_local_rows()
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call psb_geall(tv,lv%remap_data%desc_ac_pre_remap,info)
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call psb_geasb(tv,lv%remap_data%desc_ac_pre_remap,info)
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!!$ write(0,*) me,' Size of TV ',tv%get_nrows()
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call lv%linmap%map_U2V(alpha,vect_u,beta,tv,info,&
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& work=work,vtx=vtx,vty=vty)
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rsnd = tv%get_vect()
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call psb_snd(ctxt,rsnd(1:nrl),idest)
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if (rme >=0) then
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allocate(rrcv(sum(nrsrc)))
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!!$ write(0,*) me,rme,' Size check ',size(rrcv)!,lv%desc_ac%get_local_rows()
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kp = 0
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do i = 1,size(isrc)
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ip = isrc(i)
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nrl = nrsrc(i)
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!!$ write(0,*) me,' Receiving from ',ip,nrl,kp+1,kp+nrl,size(rrcv)
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call psb_rcv(ctxt,rrcv(kp+1:kp+nrl),ip)
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kp = kp + nrl
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end do
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call vect_v%set_vect(rrcv)
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end if
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end associate
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!!$ write(0,*) me, ' Restrictor with remap done '
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end block
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else
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! Default transfer
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call lv%linmap%map_U2V(alpha,vect_u,beta,vect_v,info,&
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& work=work,vtx=vtx,vty=vty)
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end if
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end subroutine amg_s_base_onelev_map_rstr_v
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subroutine amg_s_base_onelev_map_rstr_a(lv,alpha,u,beta,v,info,work)
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use psb_base_mod
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use amg_s_onelev_mod, amg_protect_name => amg_s_base_onelev_map_rstr_a
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implicit none
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class(amg_s_onelev_type), target, intent(inout) :: lv
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real(psb_spk_), intent(in) :: alpha, beta
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real(psb_spk_), intent(inout) :: u(:)
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real(psb_spk_), intent(out) :: v(:)
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integer(psb_ipk_), intent(out) :: info
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real(psb_spk_), optional :: work(:)
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if (lv%remap_data%ac_pre_remap%is_asb()) then
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!
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! Remap has happened, deal with it
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!
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write(0,*) 'Remap handling not implemented yet '
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else
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! Default transfer
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call lv%linmap%map_U2V(alpha,u,beta,v,info,&
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& work=work)
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end if
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end subroutine amg_s_base_onelev_map_rstr_a
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