[Beowulf] Win64 Clusters!!!!!!!!!!!!

Kozin, I (Igor) i.kozin at dl.ac.uk
Thu Apr 12 11:20:25 EDT 2007


Indeed it is rather amusing to think of an example with very large 
text size. First I thought it's very hard. But let me see.
Suppose you have a rather complicated function of 50 variables 
which takes about 500kB. Then full second derivatives (say,
using Maple or 2500 people) will take about 500kB x 50^2 = 1 GB.
(think of dynamics calculation or just very complicated
formulae which predict that something very important happens)
People routinely generate portions of their code using algebraic
manipulators. My personal experience is rather modest - a few tens
of kilobytes with dimensions less than 10.
Sure, this is pretty close to program generating a program. 
But overbloated code size is exactly what you end up with.
So I would not be too surprised to learn that somebody has already 
beaten the 32 bit text limit.


I. Kozin  (i.kozin at dl.ac.uk)
CCLRC Daresbury Laboratory, WA4 4AD, UK
skype: in_kozin
tel: +44 (0) 1925 603308
http://www.cse.clrc.ac.uk/disco

> An inconclusive datapoint:
> 
> The largest programs I know about (text segment size) are compiled 
> simulators.

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