st: re: building a 'dream' stata desktop setup

[Kit Baum <baum@bc.edu>]

< >
Chinh said

"Fred Wolfe" <fwolfe@arthritis-research.org> wrote:

> The maximum memory I can access with a Mac Pro 8 GB, OS 10.5  
(Leopard)
> is 1625 MB (set mem 1625m) which actually allocates 1711 according to
> Stata.

I suspect the reason that Fred cannot allocate more than 1625 MB of  
memory is
because the default amount of memory he allocated to Stata is 1625 MB  
(perhaps
set earlier by -set memory 1625m, perm-).  This is a perfectly  
reasonable
thing to do and on other platforms, you can allocate more memory  
(assuming you
have more available) after Stata has started up.

What's happening on the Mac GUI version is that after Stata allocates  
its big
block of memory during startup, the GUI is allocating some memory for  
itself
and actually fragmenting the available memory.  Stata takes steps to  
prevent
this memory fragmentation from happening when it starts up  
(successfully on
other platforms) but can't prevent the Mac GUI from fragmenting the  
memory.
Note that the Mac console version does not have this problem.

(snip)


The figures I quoted for memory allocation were not using the GUI  
version of Stata for Mac OS X, but the console version of Stata. This  
may well account for the difference, given the last line quoted above.

Kit

Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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