HPN-SSH: HPN13v1 Released

[Chris Rapier]

Ben Bennett and I (both researchers at the Pittsburgh Supercomputing 
Center) have released the HPN13v1 patch set for OpenSSH 4.7p1. Primarily 
this release incorporates the previously announced multi-threaded 
AES-CTR mode cipher which will allow users to make better use of 
multi-core environments. In our test environments we've seen upwards of 
a 100% improvement in throughput performance compared to stock AES-CTR.

Also, we're distributing patches in a different way. From now on there 
will be 'kitchen sink' and 'a la carte' versions of the patches 
available. The kitchen sink version includes dynamic SSH windows, none 
cipher switching, multithreaded AES-CTR, peak throughput display for 
SCP, and enhanced server side logging. The a la carte patches will 
provide each of these as a separate patch against the stock OpenSSH 
code. However, I've not yet split out the dynamic window patch from the 
none cipher patch. I hope to have that finished in the next week.

The patches, papers, presentations, and more information are available 
from http://psc.edu/networking/projects/hpn-ssh/

Questions, comments, ideas, and requests are always appreciated.

Thanks for your time,

Chris Rapier
Ben Bennett
Pittsburgh Supercomputing Center