psblas3/base/internals/psi_sovrl_restr.f90

!!$ 
!!$              Parallel Sparse BLAS  version 3.4
!!$    (C) Copyright 2006, 2010, 2015
!!$                       Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        CNRS-IRIT, Toulouse
!!$ 
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!!$  
subroutine  psi_sovrl_restrr1(x,xs,desc_a,info)
  use psi_mod, psi_protect_name =>   psi_sovrl_restrr1

  implicit none

  real(psb_spk_), intent(inout)  :: x(:)
  real(psb_spk_)                 :: xs(:)
  type(psb_desc_type), intent(in)  :: desc_a
  integer(psb_ipk_), intent(out)             :: info

  ! locals
  integer(psb_ipk_) :: ictxt, np, me, err_act, i, idx, isz
  character(len=20) :: name, ch_err

  name='psi_sovrl_restrr1'
  if (psb_get_errstatus() /= 0) return 
  info = psb_success_
  call psb_erractionsave(err_act)
  ictxt = desc_a%get_context()
  call psb_info(ictxt, me, np)
  if (np == -1) then
    info = psb_err_context_error_
    call psb_errpush(info,name)
    goto 9999
  endif

  isz = size(desc_a%ovrlap_elem,1)

  do i=1, isz
    idx    = desc_a%ovrlap_elem(i,1)
    x(idx) = xs(i) 
  end do

  call psb_erractionrestore(err_act)
  return  

9999 call psb_error_handler(ictxt,err_act)

  return
end subroutine psi_sovrl_restrr1

subroutine  psi_sovrl_restrr2(x,xs,desc_a,info)
  use psi_mod, psi_protect_name =>   psi_sovrl_restrr2

  implicit none

  real(psb_spk_), intent(inout)  :: x(:,:)
  real(psb_spk_)                 :: xs(:,:)
  type(psb_desc_type), intent(in)  :: desc_a
  integer(psb_ipk_), intent(out)             :: info

  ! locals
  integer(psb_ipk_) :: ictxt, np, me, err_act, i, idx, isz
  character(len=20) :: name, ch_err

  name='psi_sovrl_restrr2'
  if (psb_get_errstatus() /= 0) return 
  info = psb_success_
  call psb_erractionsave(err_act)
  ictxt = desc_a%get_context()
  call psb_info(ictxt, me, np)
  if (np == -1) then
    info = psb_err_context_error_
    call psb_errpush(info,name)
    goto 9999
  endif

  if (size(x,2) /= size(xs,2)) then 
    info = psb_err_internal_error_
    call psb_errpush(info,name, a_err='Mismacth columns X vs XS')
    goto 9999
  endif


  isz = size(desc_a%ovrlap_elem,1)

  do i=1, isz
    idx      = desc_a%ovrlap_elem(i,1)
    x(idx,:) = xs(i,:) 
  end do

  call psb_erractionrestore(err_act)
  return  

9999 call psb_error_handler(ictxt,err_act)

  return
end subroutine psi_sovrl_restrr2


subroutine  psi_sovrl_restr_vect(x,xs,desc_a,info)
  use psi_mod, psi_protect_name =>   psi_sovrl_restr_vect
  use psb_s_base_vect_mod

  implicit none

  class(psb_s_base_vect_type)     :: x
  real(psb_spk_)               :: xs(:)
  type(psb_desc_type), intent(in) :: desc_a
  integer(psb_ipk_), intent(out)            :: info

  ! locals
  integer(psb_ipk_) :: ictxt, np, me, err_act, i, idx, isz
  character(len=20) :: name, ch_err

  name='psi_sovrl_restr_vect'
  if (psb_get_errstatus() /= 0) return 
  info = psb_success_
  call psb_erractionsave(err_act)
  ictxt = desc_a%get_context()
  call psb_info(ictxt, me, np)
  if (np == -1) then
    info = psb_err_context_error_
    call psb_errpush(info,name)
    goto 9999
  endif

  isz = size(desc_a%ovrlap_elem,1)

  call x%sct(isz,desc_a%ovrlap_elem(:,1),xs,szero)

  call psb_erractionrestore(err_act)
  return  

9999 call psb_error_handler(ictxt,err_act)

  return
end subroutine psi_sovrl_restr_vect


subroutine  psi_sovrl_restr_multivect(x,xs,desc_a,info)
  use psi_mod, psi_protect_name =>   psi_sovrl_restr_multivect
  use psb_s_base_vect_mod

  implicit none

  class(psb_s_base_multivect_type)     :: x
  real(psb_spk_)               :: xs(:,:)
  type(psb_desc_type), intent(in) :: desc_a
  integer(psb_ipk_), intent(out)            :: info

  ! locals
  integer(psb_ipk_) :: ictxt, np, me, err_act, i, idx, isz, nc
  character(len=20) :: name, ch_err

  name='psi_sovrl_restr_mv'
  if (psb_get_errstatus() /= 0) return 
  info = psb_success_
  call psb_erractionsave(err_act)
  ictxt = desc_a%get_context()
  call psb_info(ictxt, me, np)
  if (np == -1) then
    info = psb_err_context_error_
    call psb_errpush(info,name)
    goto 9999
  endif

  isz = size(desc_a%ovrlap_elem,1)
  call x%sct(isz,desc_a%ovrlap_elem(:,1),xs,szero)

  call psb_erractionrestore(err_act)
  return  

9999 call psb_error_handler(ictxt,err_act)

  return
end subroutine psi_sovrl_restr_multivect