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Subject: [OMPI devel] Hang in comm_spawn
From: Ralph Castain (rhc_at_[hidden])
Date: 2014-03-18 10:35:01


I'm seeing comm_spawn hang here:

[bend001][[52890,1],0][coll_ml_module.c:3030:mca_coll_ml_comm_query] COLL-ML ml_coll_schedule_setup exit with error
[bend001][[52890,1],1][coll_ml_module.c:3030:mca_coll_ml_comm_query] COLL-ML ml_coll_schedule_setup exit with error

Setting -mca coll ^ml allows things to run to completion just fine, so it appears that coll/ml is having a problem with comm_spawn.

Ralph