diff -up pypar_2.1.5_108/source/pypar.py.orig pypar_2.1.5_108/source/pypar.py
--- pypar_2.1.5_108/source/pypar.py.orig	2011-11-17 12:49:47.000000000 +0200
+++ pypar_2.1.5_108/source/pypar.py	2013-02-02 02:16:01.256359253 +0200
@@ -857,12 +857,6 @@ else:
          MAX, MIN, SUM, PROD, LAND, BAND,\
          LOR, BOR, LXOR, BXOR
 
-    # Work around bug in OpenMPI (December 2009):
-    # https://bugs.launchpad.net/ubuntu/+source/petsc4py/+bug/232036
-    from ctypes import *
-    CDLL('libmpi.so', RTLD_GLOBAL)
-    # End work around
-
     # Initialise MPI with cmd line (needed by MPICH/Linux)
     init(sys.argv)