Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: [OMPI users] multipath support for infiniband
From: Jens Domke (jens.domke_at_[hidden])
Date: 2010-09-21 11:45:25


the InfiniBand architecture has a LMC feature to assign mutiple virtual
LIDs to one port and so provides multiple paths between two ports. Is
there a methode in openmpi to enable message-striping over these paths
to increase bandwidth or avoid congestions?
(I don't mean the multirail feature, to split traffic across two ports
of one Hca)
The only function I have found, was to enable automatic path migration
over lmc, but this is only for failover, if I remember rightly.