Re: st: set memory question

[Jeph Herrin <junk@spandrel.net>]

In *nix (including OS X) doesn't Stata use virtual memory
as well as RAM? I recall doing this in Solaris and Linux.



David Airey wrote:
> .
>
> If I have 4 gb installed on StataMP 11 on OS X 10.5.8, yet
>
> -set memory 5g-
>
> doesn't cause an error message. Neither does -set memory 50g-.
>
> The manuals says it should but look at this (I don't have 50 gb of memory):
>
> . set memory 50g
>
> Current memory allocation
>
>                     current                                 memory usage
>     settable          value     description                 (1M = 1024k)
>     --------------------------------------------------------------------
>     set maxvar         5000     max. variables allowed           2.105M
>     set memory        51200M    max. data space             51,200.000M
>     set matsize         400     max. RHS vars in models          1.254M
>                                                             -----------
>                                                             51,203.359M
>
> . memory
>                                                   bytes
> --------------------------------------------------------------------
> Details of set memory usage
>     overhead (pointers)                               0        0.00%
>     data                                              0        0.00%
>                                         ----------------------------
>     data + overhead                                   0        0.00%
>     free                                 53,687,091,200      100.00%
>                                         ----------------------------
>     Total allocated                      53,687,091,200      100.00%
> --------------------------------------------------------------------
> Other memory usage
>     set maxvar usage                          2,206,954
>     set matsize usage                         1,315,200
>     programs, saved results, etc.                 1,994
>                                         ---------------
>     Total                                     3,524,148
> -------------------------------------------------------
> Grand total                              53,690,615,348
>
>
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