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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 21:25:18 +0000

<>
>> I have a question: if I use a Stata MP 64 bits it would be possible to load this kind of dataset?

Sorry I should have read your post more carefully.  You already have a 64-bit system w/ 4G of RAM.  Stata 11 MP will not make a difference in the amount of RAM you can allocate -- it changes the # of processors that can be used for computation.    You need to install the 64-bit version of Stata 11  (this will be an option when installing from the disc).

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

On May 17, 2011, at 4:16 PM, Eric Booth wrote:

> <>
> 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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