On Sep 25, 2012, at 10:17 AM, Brice Goglin wrote: >> Why a ^? > > This was for Jeff :) > When you specify which components to use in OMPI, you pass a > comma-separated list, and ^ is a negation.
FWIW, we didn't use "!" for negation, because then you'd have to escape or quote it on the command line. ^ does't need escaping or quoting. Note that you only need an include or exclude list -- you never need both. So if ^ is the first non-whitespace character, then it's a negative list. If not, it's a positive list. -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/