[OMPI users] Where does the output for -mca coll_tuned_base_verbose go?

[Kenneth Chiu]

I am having a hanging problem using bcast that I'm trying to track
down.  I added the above, hoping to get some debugging output,
but didn't see any.  I am using slurm in batch mode.

    slurm -n 20 -b slurm_script.sh

and slurm_script.sh contains:

    mpirun -np $SLURM_NPROCS --mca coll_tuned_base_verbose 1 /u/chiuk/cfd/main

By the way, I also tried:

    mpirun -np $SLURM_NPROCS --mca coll ^tuned /u/chiuk/cfd/main

but got the same hang.  This is on odin.cs.indiana.edu.

Thanks.