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Subject: [OMPI devel] Hangs on the trunk
From: Rolf vandeVaart (rvandevaart_at_[hidden])
Date: 2014-07-14 16:38:38


I have noticed that I am seeing some tests hang on the trunk. For example:

$ mpirun --mca btl_tcp_if_include eth0 --host drossetti-ivy0,drossetti-ivy1 -np 2 --mca pml ob1 --mca btl sm,tcp,self --mca coll_mdisable_allgather 1 --mca btl_openib_warn_default_gid_prefix 0 send

It is not unusual for this test to take several minutes, particularly on slow networks.
Please be patient.
NOTICE: Using max message size: 10485760
Progress: [=====

Is anyone else seeing this? (This is really a hang in spite of the message saying it should take a few minutes)

This started with the changes Nathan did for renaming the descriptor fields - r32196 through r32202.
>From what I can tell, it looks like it hangs the second time the rendezvous protocol is used to send the data.

Rolf

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