The (low level verbs) latency has AFAIR changed only a few times:
1) started at 5-6us with PCI-X Infinihost3
2) dropped to 3-4us with PCI-express Infinihost3
3) dropped to ~1us with PCI-express ConnectX
I would like to add that on PCI-EX Gen2 platforms the latency is sub
micro (~0.8-0.95)
Disclaimer: rough figures and only for Mellanox chips.
The same declaimer here.
Pasha
Regards
Neeraj Chourasia
------------------------------------------------------------------------
_______________________________________________
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users
