amg4psblas/mlprec/mld_zprecfree.f90

!!$ 
!!$ 
!!$                                MLD2P4
!!$  MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$             based on PSBLAS (Parallel Sparse BLAS v.2.0)
!!$  
!!$  (C) Copyright 2007  Alfredo Buttari      University of Rome Tor Vergata
!!$                      Pasqua D'Ambra       ICAR-CNR, Naples
!!$                      Daniela di Serafino  Second University of Naples
!!$                      Salvatore Filippone  University of Rome Tor Vergata       
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! File: mld_zprecfree.f90
!
! Subroutine: mld_zprecfree
! Version:    real
!
!  This routine deallocates the preconditioner data structure.
!
!
! Arguments:
!    p       -  type(mld_zprec_type), input/output.
!               The preconditioner data structure to be deallocated.
!    info    -  integer, output.
!               Error code.
!  
subroutine mld_zprecfree(p,info)
  
  use psb_base_mod
  use mld_prec_mod, mld_protect_name => mld_zprecfree

  implicit none

  ! Arguments
  type(mld_zprec_type), intent(inout) :: p
  integer, intent(out)                :: info

  ! Local variables
  integer             :: me,err_act,i
  character(len=20)   :: name

  if(psb_get_errstatus().ne.0) return 
  info=0
  name = 'mld_zprecfree'
  call psb_erractionsave(err_act)

  me=-1

  if (allocated(p%baseprecv)) then 
    do i=1,size(p%baseprecv) 
      call mld_base_precfree(p%baseprecv(i),info)
    end do
    deallocate(p%baseprecv)
  end if
  call psb_erractionrestore(err_act)
  return

9999 continue
  call psb_erractionrestore(err_act)
  if (err_act.eq.psb_act_abort_) then
     call psb_error()
     return
  end if
  return

end subroutine mld_zprecfree