On Apr 13, 2011, at 12:47 PM, Rolf vandeVaart wrote:

> By default, the code is disable and has to be configured into the library.
>   --with-cuda(=DIR)       Build cuda support, optionally adding DIR/include,
>                                              DIR/lib, and DIR/lib64
>   --with-cuda-libdir=DIR  Search for cuda libraries in DIR

My $0.02: cuda shouldn't be disabled by default (and only enabled if you 
--with-cuda).  If configure finds all the Right cuda magic, then cuda support 
should be enabled by default.  Just like all other optional support libraries 
that OMPI uses.

More specifically: the cuda support code in OMPI should strive to be such that 
it can be enabled by default and not cause any performance penalties to codes 
that do not need/use any cuda stuff.  I'm not saying I know how to do that -- 
I'm just saying that that should be the goal.  :-)

-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to:
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