Re: st: set mem

[Fred Wolfe <fwolfe@arthritis-research.org>]

At 04:42 PM 3/8/2006, you wrote:
> I have found discrepancies on the maximum memory
> allowed using the set mem command despite equal
> amounts of RAM on various computers. Is there is a
> direct correlation between RAM on your computer and
> the memory allocated using the set mem command?
>
> Any recommendations on how to maximize set mem?

I have a program that tests how much memory is available. I have not sent 
it SSC. It is posted below.

I have a few other programs, though not necessarily the most modern that do 
some useful things for memory.

One is called -resetmem- that allows you to reset memory without clearing 
out current memory. It also will reduce memory automatically so as not to 
waste memory. If there is some interest in it I can send it to Kit to post 
on the archives.

Bill Gould, who knows so many things, thinks programs like this are a bad 
idea because if something goes wrong you can lose your data. But that's 
true with many programs. I've never had a problem. Caveat ...

Fred

*! memtest.ado v1.0.2 fw 3/30/04 determines maximum allowable memory
*! and current memory. Allowable value in mb is returned in r(osmem_m)
*! keywords: memory
program define memtest, rclass
   version 8.2
   preserve
   clear
   qui query memory
   local oldmem = `r(memory)'
   local memtest = 2000
   while `memtest' > 100 {
   cap set mem `memtest'm
   if _rc == 0 {
      di in green "Maximum value of memory allowed by OS is " in 
yellow"`memtest'm"
      continue, break
   }
   local memtest = `memtest' - 100
   }
   return scalar osmem_m = `memtest'
   set mem `oldmem'k
   restore
end



Fred Wolfe
National Data Bank for Rheumatic Diseases
Wichita, Kansas
Tel (316) 263-2125     Fax (316) 263-0761
fwolfe@arthritis-research.org


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