diff --git a/psb_zprecfree.f90 b/psb_zprecfree.f90
new file mode 100644
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+++ b/psb_zprecfree.f90
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+!!$ 
+!!$ 
+!!$                    MD2P4
+!!$    Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
+!!$                      for 
+!!$              Parallel Sparse BLAS  v2.0
+!!$    (C) Copyright 2006 Salvatore Filippone    University of Rome Tor Vergata
+!!$                       Alfredo Buttari        University of Rome Tor Vergata
+!!$                       Daniela di Serafino    Second University of Naples
+!!$                       Pasqua D'Ambra         ICAR-CNR                      
+!!$ 
+!!$  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 MD2P4 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 MD2P4 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 psb_zprecfree(p,info)
+  use psb_base_mod
+  use psb_prec_type
+  implicit none
+  !....parameters...
+
+  type(psb_zprec_type), intent(inout) :: p
+  integer, intent(out)                :: info
+
+  !...locals....
+  integer             :: ictxt,me, np,err_act,i
+  character(len=20)   :: name
+
+  if(psb_get_errstatus().ne.0) return 
+  info=0
+  name = 'pszprecfree'
+  call psb_erractionsave(err_act)
+
+  me=-1
+
+  if (allocated(p%baseprecv)) then 
+    do i=1,size(p%baseprecv) 
+      call psb_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.act_abort) then
+     call psb_error()
+     return
+  end if
+  return
+
+end subroutine psb_zprecfree