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Re: st: RE: Memory usage in Stata 11 and 12


From   roland andersson <rolandersson@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Memory usage in Stata 11 and 12
Date   Fri, 29 Jul 2011 11:54:52 +0200

So my question is the effects of this new automatic memory management
in terms of maximum size of available memory for data compared to
Stata 11 given the RAM installed.

Roland

2011/7/29 Nick Cox <njcoxstata@gmail.com>:
> No "seems" about it! Stata 12 has automatic memory management. But
> whatever limitations Windows imposes are limitations that remain.
>
> Nick
>
> On Fri, Jul 29, 2011 at 10:01 AM, roland andersson
> <rolandersson@gmail.com> wrote:
>> Thank you Jan
>>
>> This answers my first question. I was aware of the limits of 32-bit OS
>> but thought it was larger than 2.1GB. I obviously have more memory
>> available which I thought would have at least some impact as WinXP 32
>> bit can adress 4GB.
>>
>> I think there are possibilities to force Windows XP to load processes
>> during the boot-process to upper memory in a better fashion, ie the
>> /3GB parameter in boot.ini but would like an advice by someone more
>> experienced before I start experimenting.
>>
>> Now waiting for information about Stata 12 as it seems to use memory
>> differently than previous version.
>>
>> Regards
>>
>> Roland Andersson
>>
>>
>> 2011/7/29 Jan Bryla <JBR@finansraadet.dk>:
>>> See http://www.stata.com/support/faqs/win/winmemory.html as a start.
>>>
>>> /Jan
>>>
>>> -----Original Message-----
>>> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of roland andersson
>>> Sent: 29. juli 2011 09:03
>>> To: statalist@hsphsun2.harvard.edu
>>> Subject: st: Memory usage in Stata 11 and 12
>>>
>>> I found 1 MB of memory laying around at home and upgraded my laptop
>>> Lenovo T400 from 2 GB to 3 GB RAM. However, this did not have any
>>> effect on the available memory for Stata11. I could adress 1200 MB
>>> both before and after the upgrade. I am using Windows XP 32-bit.
>>>
>>> Is there any utility for windows that can help me find a way to make
>>> more room for Stata? I know that I can use msconfig to block out some
>>> processes, but it is difficult to know what processes that is not
>>> necessary. I would rather have a utility that can decide where the
>>> processes are loaded. Another possibility would be to load Stata early
>>> during the boot process. Is that possible?
>>>
>>> I have also had the experience that Stata had less memory available
>>> after upgrading from Stata 9 to Stata 11. I wonder if Stata 12 is more
>>> efficient in memory usage? If I upgrade will I have more, or less,
>>> memory available for data, or does Stata still need uninterrupetd
>>> memoryblocks?
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