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?

Thanks,
david
--
David Gunter
HPC-3: Infrastructure Team
Los Alamos National Laboratory




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