Sooooo, Linux is supercomputer grade software? So it is more powerful and capable than the offering from M$?
Okay, if you say so.
Of course supercomputers can run Linux, so do MAC's and playstations, and mobile phones and PDA's... Now I would be more concerned with supercomputer HARDWARE going to Iran rather than the software. The hardware is not free, and I don't believe we're giving them any. Of course even if your fantasy world were true, and Linux didn't exist inside the US, it would still exist outside of it, as does high level encryption software (one of the reasons the US dropped its export controls).
What are ya gonna do, start rounding up the intellectuals in the world so they can't invent or create anything not controled by your master and the USGov?
Not very realistic.
Don't know jack about modern supercomputers, do ya pal.
Here's you a crash course, all the Chicom supercomputers run what is basically a free copy of Linux they got from Red Hat, which they promptly renamed "Red Flag".
http://news.com.com/2100-1014-5253873.html
Several of those countries whose imports are limited, such as China and Russia, have sidestepped the regulations by creating their own supercomputers using clusters of hundreds or thousands of less-powerful systems. The Top500 list of supercomputers, released last week, included five homegrown Chinese computers, including one ranked No. 10.