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subroutine psb_get_ovrlap(ovrel,desc,info)
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use psb_descriptor_type
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use psb_realloc_mod
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use psb_error_mod
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implicit none
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integer, allocatable :: ovrel(:)
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type(psb_desc_type), intent(in) :: desc
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integer, intent(out) :: info
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integer :: i,j, err_act
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character(len=20) :: name
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info = 0
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name='psi_get_overlap'
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call psb_erractionsave(err_act)
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if (.not.psb_is_asb_desc(desc)) then
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info = 1122
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call psb_errpush(info,name)
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goto 9999
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end if
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i=0
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j=1
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do while(desc%ovrlap_elem(j) /= -1)
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i = i +1
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j = j + 2
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enddo
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if (i > 0) then
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allocate(ovrel(i),stat=info)
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if (info /= 0 ) then
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info = 4000
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call psb_errpush(info,name)
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goto 9999
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end if
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i=0
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j=1
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do while(desc%ovrlap_elem(j) /= -1)
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i = i +1
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ovrel(i) = desc%ovrlap_elem(j)
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j = j + 2
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enddo
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else
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if (allocated(ovrel)) then
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deallocate(ovrel,stat=info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Deallocate')
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goto 9999
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end if
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end if
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act.eq.psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_get_ovrlap
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