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Re: st: Memory Issue in XP


From   Dmitriy Krichevskiy <krichevskyd@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Memory Issue in XP
Date   Mon, 20 Jul 2009 13:39:59 -0400

processes running after Stata has initialized and and as some of them go
offline you can use their memory allocations for Stata. This is really
a  Wondows rather then Stata issue, See article about memory managment
here:
http://blogs.technet.com/askperf/archive/2007/03/23/memory-management-demystifying-3gb.aspx.
You can improve memory allocation by overriding Wondows defaults.
>
>
> 2009/7/20 BENJAMIN SCHWAB <bschwab@wisc.edu>
>
>> I'm encountering an issue with setting memory that I have not seen
>> covered
>> by the large database FAQ or in the Statalist archives.
>> When I open Stata and try the 'set mem xxxm' to a large memory allocation
>> (it seems as if it's anything over 500m), I sometimes get the r(909)
>> error
>> saying “op. sys. refuses to provide memory”.   The strange part, however,
>> is
>> if I set the memory to a much smaller number, e.g. set mem 250m, and then
>> gradually raise the memory allocation, I can get up to and past the
>> original
>> allocation that was originally refused.
>> For example, today I did the following:
>>
>> set mem 800m
>> op. sys. refuses to provide memory
>> r(909)
>>
>> set mem 250m
>>
>> set mem 500m
>>
>> set mem 800m
>> op. sys. refuses to provide memory
>> r(909)
>>
>> set mem 700m
>>
>> set mem 800m
>>
>> set mem 850m
>>
>> I can't figure out why this occurs.  This can be a real pain for
>> programming purposes, since it's difficult to predict what exact memory
>> allocations will be accepted from day to day (I'm working with large
>> datasets).
>>
>> I'm running Stata/SE 10.1 with XP SP3.  I'd love to hear the input of
>> those
>> more familiar with the working of Stata.  Right now, I'm stumped.
>>
>>
>>
>>
>> *
>> *   For searches and help try:
>> *   http://www.stata.com/help.cgi?search
>> *   http://www.stata.com/support/statalist/faq
>> *   http://www.ats.ucla.edu/stat/stata/
>>
>
>
>
> --
> Dmitriy Krichevskiy a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. r.
> s.
> t. u. v. w. x. y. z.
>


-- 
Dmitriy Krichevskiy a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q.
r. s. t. u. v. w. x. y. z.

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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