[mpich-discuss] Question to the group about Linux

[Scott Atchley]

On Oct 25, 2010, at 12:21 PM, Joe Landman wrote:

>> Linux servers to our test cluster. It is a very memory hungry app, but
>> what we are seeing is that the same app on Windows 7 uses about 1/3 the
>> space for the same allocations that it uses on RHEL 5.5. We’ve traced
> 
> Is hits a 32 bit app on Windows7 and a 64 bit app on RHEL 5.5?
> 
> Without knowing any further details, its very hard to have a clue as to what is happening.
> 
> Next question is: how much memory is the app using on each platform? How is it being allocated?

I would add "How is it being measured?" Is the usage in VM or RSS if using top or ps to obtain usage. Not having used Windows in a decade, how does it display memory?

Scott