Hi, 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)
thanks Lenny.
