Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: [OMPI devel] RFC: change default for tuned alltoallv to pairwise
From: Nathan Hjelm (hjelmn_at_[hidden])
Date: 2012-03-21 12:14:25

What: Change coll tuned default to pairwise exchange

Why: The linear algorithm does not scale to any reasonable number of PEs

When: Timeout in 2 days (Fri)

Is there any reason the default should not be changed?