Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] deadlock when calling MPI_gatherv
From: Teng Lin (teng.lin_at_[hidden])
Date: 2010-04-27 10:04:59

Hi Terry,

> How does the stack for the non-SM BTL run look, I assume it probably is the same? Also, can you dump the message queues for rank 1? What's interesting is you have a bunch of pending receives, do you expect that to be the case when the MPI_Gatherv occurred?

It turns out we have an unbalanced MPI_Bcast buried very deep in the application. After fixing that bug, the application behaves correctly.
Thank you all for the help, and sorry for the false alarm.