You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
amg4psblas/amgprec/impl/level/amg_d_base_onelev_map_prol.F90

136 lines
5.6 KiB
Fortran

!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! Salvatore Filippone
! Pasqua D'Ambra
! Fabio Durastante
!
! 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 AMG4PSBLAS 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 AMG4PSBLAS 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.
!
!
subroutine amg_d_base_onelev_map_prol_v(lv,alpha,vect_v,beta,vect_u,info,work,vtx,vty)
use psb_base_mod
use amg_d_onelev_mod, amg_protect_name => amg_d_base_onelev_map_prol_v
implicit none
class(amg_d_onelev_type), target, intent(inout) :: lv
real(psb_dpk_), intent(in) :: alpha, beta
type(psb_d_vect_type), intent(inout) :: vect_u, vect_v
integer(psb_ipk_), intent(out) :: info
real(psb_dpk_), optional :: work(:)
type(psb_d_vect_type), optional, target, intent(inout) :: vtx,vty
!!$ write(0,*) 'New map_prol',lv%remap_data%ac_pre_remap%is_asb()
if (lv%remap_data%ac_pre_remap%is_asb()) then
!
! Remap has happened, deal with it
!
!!$ write(0,*) 'Remap handling '
block
type(psb_ctxt_type) :: ctxt, nctxt
integer(psb_ipk_) :: i,j,ip,idest, nsrc, nrl, nrc, kp
integer(psb_ipk_) :: me, np, rme, rnp
real(psb_dpk_), allocatable :: rsnd(:), rrcv(:)
type(psb_d_vect_type) :: tv
ctxt = lv%remap_data%desc_ac_pre_remap%get_ctxt()
call psb_info(ctxt,me,np)
!!$ write(0,*) 'Old context ',me,np,psb_errstatus_fatal()
nctxt = lv%desc_ac%get_ctxt()
call psb_info(nctxt,rme,rnp)
!!$ write(0,*) 'New context ',rme,rnp,psb_errstatus_fatal()
idest = lv%remap_data%idest
associate(isrc => lv%remap_data%isrc, nrsrc => lv%remap_data%nrsrc)
!!$ write(0,*) 'Should apply maps, then receive data from ',idest,' to ',me,psb_errstatus_fatal()
nsrc = size(isrc)
nrl = lv%remap_data%desc_ac_pre_remap%get_local_rows()
nrc = lv%remap_data%desc_ac_pre_remap%get_local_cols()
if (rme >=0) then
allocate(rrcv(sum(nrsrc)))
rrcv = vect_v%get_vect()
!!$ write(0,*) me,rme,' Size check ',size(rrcv),lv%desc_ac%get_local_rows(),psb_errstatus_fatal()
kp = 0
do i = 1,size(isrc)
ip = isrc(i)
nrl = nrsrc(i)
!!$ write(0,*) me,' Sending to ',ip,nrl,kp+1,kp+nrl
call psb_snd(ctxt,rrcv(kp+1:kp+nrl),ip)
kp = kp + nrl
end do
end if
nrl = lv%remap_data%desc_ac_pre_remap%get_local_rows()
call psb_geall(tv,lv%remap_data%desc_ac_pre_remap,info)
!!$ write(0,*) me, ' Allocated ',nrl,info,psb_errstatus_fatal()
call psb_geasb(tv,lv%remap_data%desc_ac_pre_remap,info)
!!$ write(0,*) me,' Size of TV ',nrl,tv%get_nrows(),info
!!$ write(0,*) me,' Receiving from ',idest,nrl,psb_errstatus_fatal()
call psb_realloc(nrc,rsnd,info)
call psb_rcv(ctxt,rsnd(1:nrl),idest)
call tv%set_vect(rsnd)
call lv%linmap%map_V2U(alpha,tv,beta,vect_u,info,&
& work=work,vtx=vtx,vty=vty)
end associate
!!$ write(0,*) me, ' Prolongator with remap done '
!!$ flush(0)
!!$ call psb_barrier(ctxt)
end block
else
! Default transfer
call lv%linmap%map_V2U(alpha,vect_v,beta,vect_u,info,&
& work=work,vtx=vtx,vty=vty)
end if
end subroutine amg_d_base_onelev_map_prol_v
subroutine amg_d_base_onelev_map_prol_a(lv,alpha,v,beta,u,info,work)
use psb_base_mod
use amg_d_onelev_mod, amg_protect_name => amg_d_base_onelev_map_prol_a
implicit none
class(amg_d_onelev_type), target, intent(inout) :: lv
real(psb_dpk_), intent(in) :: alpha, beta
real(psb_dpk_), intent(inout) :: u(:)
real(psb_dpk_), intent(out) :: v(:)
integer(psb_ipk_), intent(out) :: info
real(psb_dpk_), optional :: work(:)
if (lv%remap_data%ac_pre_remap%is_asb()) then
!
! Remap has happened, deal with it
!
write(0,*) 'Remap handling not implemented yet '
else
! Default transfer
call lv%linmap%map_V2U(alpha,v,beta,u,info,&
& work=work)
end if
end subroutine amg_d_base_onelev_map_prol_a