Traceback (most recent call last):
Traceback (most recent call last):
  File "prime_mpi.py", line 85, in <module>
    prime_mpi ( )
  File "prime_mpi.py", line 66, in prime_mpi
    comm.Reduce ( [ t, MPI.DOUBLE ], [ primes, MPI.INT ], op = MPI.SUM, root = 0 )
  File "Comm.pyx", line 534, in mpi4py.MPI.Comm.Reduce (src/mpi4py.MPI.c:63579)
  File "message.pxi", line 557, in mpi4py.MPI._p_msg_cco.for_reduce (src/mpi4py.MPI.c:23271)
  File "message.pxi", line 523, in mpi4py.MPI._p_msg_cco.for_cro_send (src/mpi4py.MPI.c:23007)
  File "message.pxi", line 111, in mpi4py.MPI.message_simple (src/mpi4py.MPI.c:19256)
  File "message.pxi", line 51, in mpi4py.MPI.message_basic (src/mpi4py.MPI.c:18433)
  File "asbuffer.pxi", line 108, in mpi4py.MPI.getbuffer (src/mpi4py.MPI.c:5790)
  File "prime_mpi.py", line 85, in <module>
    prime_mpi ( )
  File "prime_mpi.py", line 66, in prime_mpi
    comm.Reduce ( [ t, MPI.DOUBLE ], [ primes, MPI.INT ], op = MPI.SUM, root = 0 )
  File "Comm.pyx", line 534, in mpi4py.MPI.Comm.Reduce (src/mpi4py.MPI.c:63579)
  File "message.pxi", line 557, in mpi4py.MPI._p_msg_cco.for_reduce (src/mpi4py.MPI.c:23271)
  File "message.pxi", line 523, in mpi4py.MPI._p_msg_cco.for_cro_send (src/mpi4py.MPI.c:23007)
  File "message.pxi", line 111, in mpi4py.MPI.message_simple (src/mpi4py.MPI.c:19256)
  File "message.pxi", line 51, in mpi4py.MPI.message_basic (src/mpi4py.MPI.c:18433)
  File "asbuffer.pxi", line 108, in mpi4py.MPI.getbuffer (src/mpi4py.MPI.c:5790)
  File "asbuffer.pxi", line 50, in mpi4py.MPI.PyObject_GetBufferEx (src/mpi4py.MPI.c:5185)
TypeError: expected a readable buffer object
  File "asbuffer.pxi", line 50, in mpi4py.MPI.PyObject_GetBufferEx (src/mpi4py.MPI.c:5185)
TypeError: expected a readable buffer object
Mon Oct 29 10:32:52 2012

PRIME_MPI
  Python/MPI version
  Count the primes between  1 and 131072

  Use MPI to divide the computation among
  multiple processes.
Traceback (most recent call last):
  File "prime_mpi.py", line 85, in <module>
    prime_mpi ( )
  File "prime_mpi.py", line 58, in prime_mpi
    for i in range ( 2 + id, n + 1, id ):
ValueError: range() step argument must not be zero

PRIME_MPI:
  Normal end of execution.

Mon Oct 29 10:34:16 2012
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mpirun noticed that the job aborted, but has no info as to the process
that caused that situation.
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