I believe you can turn it "off" by setting
-mca coll ^tuned
This will tell the system to consider all collective modules -except- for tuned.
We have a user who's hitting a hang in MPI_Allgather that totalview is showing is in a tuned collective operation.
How do we disable the use of tuned collectives? We have tried setting the priority to 0 but maybe that wasn't the correct way:
mpirun -mca coll_tuned_priority 0 ...
Should it have been a higher number or is there another param that should be set?
HPC-3: Infrastructure Team
Los Alamos National Laboratory
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