amg4psblas/amgprec/impl/smoother/amg_z_jac_smoother_clone.f90

!
!
!                             AMG4PSBLAS version 1.0
!    Algebraic Multigrid Package
!               based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
!    (C) Copyright 2020
!
!        Salvatore Filippone
!        Pasqua D'Ambra
!        Daniela di Serafino
!
!    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
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!    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!    POSSIBILITY OF SUCH DAMAGE.
!
!
subroutine amg_z_jac_smoother_clone(sm,smout,info)

  use psb_base_mod
  use amg_z_jac_smoother, amg_protect_name => amg_z_jac_smoother_clone

  Implicit None

  ! Arguments
  class(amg_z_jac_smoother_type), intent(inout)               :: sm
  class(amg_z_base_smoother_type), allocatable, intent(inout) :: smout
  integer(psb_ipk_), intent(out)                :: info
  ! Local variables
  integer(psb_ipk_) :: err_act


  info=psb_success_
  call psb_erractionsave(err_act)

  if (allocated(smout)) then
    call smout%free(info)
    if (info == psb_success_) deallocate(smout, stat=info)
  end if
  if (info == psb_success_) &
       & allocate(amg_z_jac_smoother_type :: smout, stat=info)
  if (info /= 0) then
    info = psb_err_alloc_dealloc_
    goto 9999
  end if

  select type(smo => smout)
  type is (amg_z_jac_smoother_type)
    smo%nd_nnz_tot = sm%nd_nnz_tot
    smo%checkres   = sm%checkres
    smo%printres   = sm%printres
    smo%checkiter  = sm%checkiter
    smo%printiter  = sm%printiter
    smo%tol        = sm%tol
    call sm%nd%clone(smo%nd,info)
    if ((info==psb_success_).and.(allocated(sm%sv))) then
      allocate(smout%sv,mold=sm%sv,stat=info)
      if (info == psb_success_) call sm%sv%clone(smo%sv,info)
    end if

  class default
    info = psb_err_internal_error_
  end select

  if (info /= 0) goto 9999

  call psb_erractionrestore(err_act)
  return

9999 call psb_error_handler(err_act)

  return
end subroutine amg_z_jac_smoother_clone