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Re: st: Using 64 bits stata to increase memory


From   Eric Booth <ebooth@ppri.tamu.edu>
To   "<statalist@hsphsun2.harvard.edu>" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Using 64 bits stata to increase memory
Date   Tue, 17 May 2011 21:16:34 +0000

<>
On May 17, 2011, at 3:47 PM, Raquel Rangel de Meireles Guimarães wrote:

> Hi all,
> 
> I have a MS Windows 7 Home Basic 64-bit and a Intel Core2Duo CPU P7550, 4.0GB RAM.
> 
> I would like to load a large dataset (almost 2GB), but I could not increase memory. I tried to put more than 1.5 GB, but operational system refused to provide memory. I've read about this and it seems that windows does not allocate more than 2 GB on 32-bits applications. Also I've enabled virtual memory, which seems to be set on by defaut in Stata 11. Unfortunately, it didn't work.
> 
> I have a question: if I use a Stata MP 64 bits it would be possible to load this kind of dataset?
> 

Yes.  Take a look at these links for previous discussions on this topic:

"FAQ: Kind of machine to run Stata": http://www.stata.com/support/faqs/win/specs.html 
"Re: AW: AW: st: Increasing Stata Memory": http://www.stata.com/statalist/archive/2010-01/msg00414.html 
"Re: st: Increasing Stata Memory": http://www.stata.com/statalist/archive/2010-01/msg00293.html 
"Re: st: Addressing > 2 gig of RAM": http://www.stata.com/statalist/archive/2005-06/msg00580.html 
"statalist : Message: st: 64 bit MACs and addressable RAM": http://groups.yahoo.com/group/statalist/message/59925?var=1 
"Re: st: Memory Issue in XP": http://www.stata.com/statalist/archive/2009-07/msg00894.html 
"st: file too big to import": http://www.stata.com/statalist/archive/2011-04/msg00979.html 
"st: Stata SE 11.1 memory problem": http://www.stata.com/statalist/archive/2011-02/msg01415.html 


>  Also I've enabled virtual memory, which seems to be set on by defaut in Stata 11. Unfortunately, it didn't work.

That's not what setting virtual on is doing, see:   http://www.stata.com/statalist/archive/2007-06/msg00875.html


- Eric
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
ebooth@ppri.tamu.edu


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