large arrays

[larry at significantplanet.org]

Hello Richard,
Here are the numbers:

I wrote a program that is an anagram finder several years ago using Rev 2.9 
and had NO problems with the arrays.
As I mentioned, it choked starting with Rev 3.5 and every iteration of Rev 
or LC that I've tried since, up to the current 6.1.1 (rc 4)
I haven't tried it in LC 7.0 yet.

I have a hidden stack with my word fields in it - for words in length from 2 
to 12.  The word lists are optimized with a key for faster searching.
When the program loads, it puts each of the 11 word list fields into one 
array - which takes about 1 second on my XP with 4gb of ram.
The word lists vary in length (3-ltr words is 1292 lines & the largest, 
9-ltr words, is 40,727 lines.)  Each line in all the lists averages less 
than 100 characters.
The size of the field for 9-ltr words is 796kb if copied into a txt 
document.

My old computer that I wrote the original program on with Rev 2.9 had less 
than 1gb of ram, so I don't think that is the issue.

If I put in a 9 letter word such as ELEPHANTS, the program will find all 
anagrams (words found within the letters of ELEPHANTS) in about 4/10 of a 
second. The time varies slightly depending on whatever else is going on with 
my computer.  That's a total of 596 words with my word lists and the program 
lists words and the number of words for each word length from 9 to 2.

So the compiled version of my program works very satisfactorily.  I'm now 
adding some other features to the program and, as I said, it is like trying 
to program on a typewriter that is full of mud.

I spoke to someone at RunRev years ago and they acknowledged that there was 
an issue with arrays.  Maybe it has been fixed in 7.0, but I haven't tried 
that yet.

If you have any additional insights, I sure would appreciate it.

Thanks,
Larry


----- Original Message ----- 
From: "Richard Gaskin" <ambassador at fourthworld.com>
To: <use-livecode at lists.runrev.com>
Sent: Friday, September 19, 2014 10:18 AM
Subject: Re: large arrays


> Just curious:  How large is large?
>
> It would be interesting to know the number of elements. depth, and 
> aggregate size.
>
> -- 
>  Richard Gaskin
>  Fourth World Systems
>  Software Design and Development for the Desktop, Mobile, and the Web
>  ____________________________________________________________________
>  Ambassador at FourthWorld.com                http://www.FourthWorld.com
>
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