[RC5] Golomb Rulers (was "sexy" projects)

Adam Polanski adam at programmer.net
Mon Mar 2 21:06:09 EST 1998

Well, after looking through the code for GARSP,GVANT and choose. I have some
points to make, which may answer some questions.
The choose.dat file is necessary for speed using GARSP. A small 16 bit file
could be generated in memory in a relatively small amount of time, this
could be an option to save disk space. Also a far as I can see, it can be
generated incrementally, getting larger over several sessions (or time).
This way a client could generate a larger choose.dat when they want to speed
up the program. Also for machines on networks, the choose.dat can be shared.
This has the possibility of one machine on a network generating a larger
choose.dat, while other machines use the largest available. A garsp client
doesn't have to use a whole choose.dat if memory requirements are tight.
I can't see a good reason for dropping down to GVANT to save disk space. A
GARSP client could easily include choose.dat generation code would probably
be less than 60k.
Oh, and as others have said, I also dont believe converting GARSP to be a v3
client would be too much of an undertaking (pending more info on v3).

Adam Polanski

-----Original Message-----
From: Charles P. Wright <cpw at unix.asb.com>
To: rc5 at llamas.net <rc5 at llamas.net>
Date: Monday, March 02, 1998 5:47 PM
Subject: Re: [RC5] Golomb Rulers (was "sexy" projects)

>Greg Hewgill wrote:
>> >Jason Bechtel wrote:
>> >Kalle Tuulos wrote:
>> >> There is one big "con" in existing OGR clients. They demand a
>> >> huge choose.dat file.
>> >
>> > I was unaware of this.  Thank you for pointing it out.  This would
>> >certainly rule out running the client from a standard floppy!
>> It's not strictly *necessary* to use a large choose.dat file, or even to
>> use one at all. Depending on how much memory you are willing to give up
>> the search client, you can use a choose.dat ranging from 700k to nearly
>> MB (clearly unsuitable for ordinary floppies!). You can probably generate
>> an even smaller choose.dat file too. To avoid using choose.dat
>> you can use the older (and slower) "gvant" program, which has a very
>> disk and memory footprint (a few tens of K on disk, a few hundred K in
>> memory).
>Will the client w/ the 11.5 MB need a lot of memory?
>Charles P. Wright
>cpw at unix.asb.com.
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