rank=0 L0: Traceback (most recent call last):
rank=0 L1:   File "hydrogen.py", line 32, in <module>
rank=0 L2:     assert id == 2
rank=0 L3: AssertionError
rank=3 L0: Traceback (most recent call last):
rank=3 L1:   File "hydrogen.py", line 32, in <module>
rank=3 L2:     assert id == 2
rank=3 L3: AssertionError
rank=1 L0: Traceback (most recent call last):
rank=1 L1:   File "hydrogen.py", line 32, in <module>
rank=1 L2:     assert id == 2
rank=1 L3: AssertionError
rank=2 L0: Traceback (most recent call last):
rank=2 L1:   File "hydrogen.py", line 32, in <module>
rank=2 L2:     assert id == 2
rank=2 L3: AssertionError
GPAW CLEANUP (node 0): <type 'exceptions.AssertionError'> occurred.  Calling MPI_Abort!
GPAW CLEANUP (node 3): <type 'exceptions.AssertionError'> occurred.  Calling MPI_Abort!
GPAW CLEANUP (node 1): <type 'exceptions.AssertionError'> occurred.  Calling MPI_Abort!
GPAW CLEANUP (node 2): <type 'exceptions.AssertionError'> occurred.  Calling MPI_Abort!
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 3 in communicator MPI_COMM_WORLD 
with errorcode 42.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun has exited due to process rank 1 with PID 27797 on
node loki exiting improperly. There are two reasons this could occur:

1. this process did not call "init" before exiting, but others in
the job did. This can cause a job to hang indefinitely while it waits
for all processes to call "init". By rule, if one process calls "init",
then ALL processes must call "init" prior to termination.

2. this process called "init", but exited without calling "finalize".
By rule, all processes that call "init" MUST call "finalize" prior to
exiting or it will be considered an "abnormal termination"

This may have caused other processes in the application to be
terminated by signals sent by mpirun (as reported here).
--------------------------------------------------------------------------
[loki:27795] 3 more processes have sent help message help-mpi-api.txt / mpi-abort
[loki:27795] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages