Yes, check out the btl_openib_max_lmc MCA parameter: shell$ ompi_info --param btl openib --parsable | grep lmc
On Sep 21, 2010, at 11:45 AM, Jens Domke wrote: > Hello, > > 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. > > Regards, > Jens > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
