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Date: Fri, 25 Oct 1996 15:50:28 -0600 (MDT)
To: techdiver@terra.net
From: "Christopher M. Parrett" <chris@ab*.co*>
Subject: Deep Stops
For the last year or so alot of people have been talking about the use of
"Deep Stops" to augment their decompression profiles following more extended
technical exsposures. As most of you will know, Tissue Based algorithms do
not lend themselfs well to artificial insertion of additional non-required
deco stops, and adding these stops often increases future decompression
obligations at shallower depths (when following the model).

For some time I have been working on getting a model that would more
accurately reflect diving in excess of 100m to run on a PC.

I know have a model that runs a good Perfussion-Diffusion simulation that
generates these deep stops. Problem is this thing is SLOW, BIG TIME SLOW.
On a 120Mhz Pentium you are looking at 30 minute run times for a single
point square profile, and the internal data matrices are HUGE. I am not sure
it will even run with less than 32MB of RAM. Needless to say that this model
was designed to run on a real computer but we are porting it over to the PC.

My question is this.
Is there anybody besides myself that would be willing to take that amount of
time and horsepower to run the thing??

How important is creating a real profile with the deep stops fully
incorporated into it??


And please, no flames about marketing crap. I don't need to waste my time on
that garbage, I just want to know if there is any interest outside of the
few of us that generate tables for a living.

Thanks.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Christopher M. Parrett, President
Abysmal Diving Inc. 6595 Odell Place, Suite G. Boulder CO, 80301 USA

Makers of ABYSS, Advanced Dive Planning Software.

Phone: (303) 530-7248  Fax:   (303) 530-2808

File Transfer Site:  ftp://ftp.abysmal.com/pub/abysmal
World Wide Web Site: http://WWW.ABYSMAL.COM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rule #1   If We Don't Take Care Of The Customer.....Somebody Else Will.
"Its not so much what we do, but how we do it that really matters."

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