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Re: AW: AW: st: Increasing Stata Memory


From   Neil Shephard <[email protected]>
To   [email protected]
Subject   Re: AW: AW: st: Increasing Stata Memory
Date   Tue, 12 Jan 2010 10:19:29 +0000

I noticed the other day that on my GNU/Linux system with 4Gb of RAM
and support enabled in the kernel for such an amount of RAM that under
my 64-bit installation I'm unable to allocate more than 1.3Gb...

. about

Stata/IC 11.0 for Unix (Linux 64-bit x86-64)
Born 21 Oct 2009
Copyright (C) 1985-2009

<--- snip --->

. forval x = 1000(10)2000{
  2. di "Trying to set memory to `x' Mb"
  3. set mem `x'M
  4. }
Trying to set memory to 1000 Mb
(1024000k)
Trying to set memory to 1010 Mb
(1034240k)
Trying to set memory to 1020 Mb
(1044480k)
Trying to set memory to 1030 Mb
(1054720k)
Trying to set memory to 1040 Mb
(1064960k)
Trying to set memory to 1050 Mb
(1075200k)
Trying to set memory to 1060 Mb
(1085440k)
Trying to set memory to 1070 Mb
(1095680k)
Trying to set memory to 1080 Mb
(1105920k)
Trying to set memory to 1090 Mb
(1116160k)
Trying to set memory to 1100 Mb
(1126400k)
Trying to set memory to 1110 Mb
(1136640k)
Trying to set memory to 1120 Mb
(1146880k)
Trying to set memory to 1130 Mb
(1157120k)
Trying to set memory to 1140 Mb
(1167360k)
Trying to set memory to 1150 Mb
(1177600k)
Trying to set memory to 1160 Mb
(1187840k)
Trying to set memory to 1170 Mb
(1198080k)
Trying to set memory to 1180 Mb
(1208320k)
Trying to set memory to 1190 Mb
(1218560k)
Trying to set memory to 1200 Mb
(1228800k)
Trying to set memory to 1210 Mb
(1239040k)
Trying to set memory to 1220 Mb
(1249280k)
Trying to set memory to 1230 Mb
(1259520k)
Trying to set memory to 1240 Mb
(1269760k)
Trying to set memory to 1250 Mb
(1280000k)
Trying to set memory to 1260 Mb
(1290240k)
Trying to set memory to 1270 Mb
(1300480k)
Trying to set memory to 1280 Mb
op. sys. refuses to provide memory
r(909);

!uname -a
Linux morgan 2.6.31-tuxonice #6 SMP Wed Dec 9 13:26:25 GMT 2009 x86_64
Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz GenuineIntel GNU/Linux

...which surprised me as its 64-bit OS and Stata (static install as I
had issues with some of the GUI libraries).

Neil
-- 
"... no scientific worker has a fixed level of significance at which
from year to year, and in all circumstances, he rejects hypotheses; he
rather gives his mind to each particular case in the light of his
evidence and his ideas." - Sir Ronald A. Fisher (1956)

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