[Lustre-devel] faking LNET scale

Isaac Huang He.Huang at Sun.COM
Wed Apr 22 14:37:46 PDT 2009

On Fri, Apr 17, 2009 at 12:10:01PM -0500, Nicholas Henke wrote:
> ......
> However, to do this either hacking up lnet_ptlcompat_matchXXX to look at another 
> flag besides the_lnet.ln_ptlcompat or some other way of allowing a server with a 
> single NET (ptl0) to accept requests from a variety of nets (ptl1, ptl2, etc). 
> One cannot use multiple interfaces for the same net type with ln_ptlcompat enabled.

Note that Portals compatibility (lnet_ptlcompat_, the_lnet.ln_ptlcompat, and friends)
have already been removed from lnet HEAD, on which all 2.x and future releases will 
be based.

> 	Is there a better way to do this ? What would be the least abusive of th e rules ?

If you only have limited number of test nodes, one way to drive the
network as hard as possible is to have all nodes use a very high
ptllnd peercredits option and run LST test with a high concurrency
(with the latest LST patch from 15332).


More information about the lustre-devel mailing list