Plastic tape covering the aluminum.. 20 mil "pipe wrap" is useful stuff.  3M 
VHB double stick foam tape to hold it in place.

But, enough of this feeble lash-up idea:  I think the real solution is to have 
a second cluster doing a complete finite element model of the instantaneous 
temperature distribution within the processor in question, driving a set of 
actuators to form a dynamically optimized shroud.  Or, perhaps the shroud could 
be made from millimachines implementing very simple control logic, but with an 
appropriate emergent behavior based on, say, their temperature sensing 
capability.  The millimachines should, of course, be self replicating.  Perhaps 
a suitably genetically engineered extremophile could be created?  

A second cluster does the model, a third cluster determines the optimum genetic 
sequence, a fourth cluster is responsible for iteratively doing the 
bioengineering to create the organisms, etc.  (or for a less biologically 
inspired system, the third and fourth clusters are doing some form of adaptive 
evolving micro manufacturing)

I'd provide more details, but really, that's just engineering, and is obvious 
to a skilled practitioner. 

 (for those not at CalTech (who is my employer, as well as David's), you can 
contact their patent counsel for rights to the invention disclosed above, which 
I'm sure they'll be happy to license to you and reasonable and 
non-discriminatory terms.<grin>)

> -----Original Message-----
> From: Robert G. Brown [mailto:[email protected]]
> If you made the shroud out of aluminum, you could basically paint the
> bottom with liquid electrical tape (or better, dip it four or five
> times, drying it in between).  It would basically rubber-coat it.  No
> shorting, no scratching, still moderately fireproof.  But as you wish.
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