Run a computationaly expensive code that needs around 1.5 Gb to work.. we
have found that 

- using the exact same code (compiles both in gcc and VC++)
- on the same machine
- on the same input data

windows used 2.0 Gb and crashed (the m/c has 1.5 Gb + .5 Gb swap file) but
Linux was running away to glory with mem usage of just 1.1 Gb.. and it
finished our entire test with max mem usage of 1.7 Gb!!

-sarang

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