[Beowulf] A start in Parallel Programming?

Robert G. Brown rgb at phy.duke.edu
Wed Mar 14 02:01:49 EDT 2007


On Tue, 13 Mar 2007, Jim Lux wrote:

> I should mention that if you want to really obfuscate things, you could do 
> something like
>
>        IF (0) 901,902,903
>
> because  you know that only 902 will be a target.  And, almost all compilers 
> could figure out that the argument is fixed, so it would emit a JMP $902 or 
> whatever...  You could make the other targets something really obscure, and 
> hopefully many pages away, and rather than make the argument a constant, some 
> complex expression that always evaluates to the same value (like those "think 
> of a number" puzzles).
>
> Good for detecting copyright infringments, eh?

Yeah, THAT would have fooled my profs, sure!

   ;-)

     rgb

-- 
Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu


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