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Subject: [OMPI devel] segv in coll tuned
From: Lenny Verkhovsky (lenny.verkhovsky_at_[hidden])
Date: 2009-10-12 09:30:15

I experience the following error with current trunk r22090. It also occures
in 1.3 branch.
#~/work/svn/ompi/branches/1.3//build_x86-64/install/bin/mpirun -H witch21
-np 4 -mca coll_tuned_use_dynamic_rules 1 ./IMB-MPI1
Sometimes it's error, and sometimes it's segv. It recreates with np>4.
[witch21:26540] *** An error occurred in MPI_Barrier
[witch21:26540] *** on communicator MPI COMMUNICATOR 3 SPLIT FROM 0
[witch21:26540] *** MPI_ERR_ARG: invalid argument of some other kind
[witch21:26540] *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)
mpirun has exited due to process rank 0 with PID 26540 on
node witch21 exiting without calling "finalize". This may
have caused other processes in the application to be
terminated by signals sent by mpirun (as reported here).
3 total processes killed (some possibly by mpirun during cleanup)