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st: Re: memory


From   "Chris Chung" <[email protected]>
To   <[email protected]>
Subject   st: Re: memory
Date   Tue, 14 Dec 2004 05:18:37 -0500

Dear Hans,

I had a similar problem. My problem was related to the size of dataset and time-consuming computing procedure (i.e. multiple failure-time analysis). Although I used a quad xeon 2.2 processor with 8 GB of RAM and 500 GB of drive space, I had to wait several days to get the result of multiple failure-time analysis. I was really surprised by the slow computing speed as I have yet to run more complicated models with more variables. However, the 2 GB limit that we are experiencing is a Stata/Terminal Services limitation (or feature). Any single application running through Stata/Terminal Services can only allocate up to 2 GB of memory. In this case, with a 32 bit application it doesn't really matter - the current 32 bit Stata for Windows can only allocate a theoretical 2 GB of memory anyway. When MS officially releases a 64 bit version of Windows, we will have a 64 bit compile of Stata for Windows which will be able to overcome the 2 GB limit. But the time has not come yet.

Chris

----- Original Message ----- From: "Hans J. Baumgartner" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 14, 2004 4:21 AM
Subject: st: memory



Dear statalist,

I’ve got new data that requires a lot of memory, i.e. >4 GB.

My system administrator told me that Stata would not be able to handle more than 2 GB physical memory and that each extra memory has to be virtual.

Has anybody some experience to share with "memory eating data"?

My aim is to get 4 or even 8 GB of physical memory but if my system operator is right, than we can save that money.

Thanks for all comments on this.
Hans

--
Hans J. Baumgartner DIW Berlin
German Institute for Economic Research
Dept. Public Economics
Königin-Luise-Str. 5; 14195 Berlin; Germany
Tel.: +49/30/89789-307
Fax.: +49/30/89789-114
http://www.diw.de
http://www.hansbaumgartner.de


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