[mpich-discuss] MPI_Barrier(MPI_COMM_WORLD) failed

[Xiao Bo Lu]

Hi all,

I've recently installed MPICH2-1.0.8 on my local machine (x86_64 Linux, 
gfortran 4.1.2) and I am now experiencing errors with my mpi code. The 
error messages are:

Fatal error in MPI_Barrier: Other MPI error, error stack:
MPI_Barrier(406)..........................: MPI_Barrier(MPI_COMM_WORLD) 
failed
MPIR_Barrier(77)..........................:
MPIC_Sendrecv(126)........................:
MPIC_Wait(270)............................:
MPIDI_CH3i_Progress_wait(215).............: an error occurred while 
handling an event returned by MPIDU_Sock_Wait()
MPIDI_CH3I_Progress_handle_sock_event(420):
MPIDU_Socki_handle_read(637)..............: connection failure 
(set=0,sock=1,errno=104:Connection reset by peer)[cli_0]: aborting job:
Fatal error in MPI_Barrier: Other MPI error, error stack:
MPI_Barrier(406)..........................: MPI_Barrier(MPI_COMM_WORLD) 
failed
MPIR_Barrier(77)..........................:
MPIC_Sendrecv(126)........................:
MPIC_Wait(270)............................:
MPIDI_CH3i_Progress_wait(215).............: an error occurred while 
handling an event returned by MPIDU_Sock_Wait()
MPIDI_CH3I_Progress_handle_sock_event(420):
MPIDU_Socki_handle_read size of processor is:                    4

I searched the net and found quite a few links about such error, but 
none of the posts could give a definitive fix. Do some of you know what 
could cause this error (e.g. incorrect installation; environmental 
setting..) and how to fix it?

Regards
Xiao