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From: "Leonard Tsai" <ltsai@co*.or*>
To: <christina@ch*.co*>, <brw@la*.go*>
Cc: <techdiver@aquanaut.com>
Subject: RE: MORE:: RGBM vs VPM Deco Models
Date: Fri, 22 Feb 2002 20:49:42 -0800


I like to ask for some clarification on this. In several of his papers,
there are references of run time on CRAY Y-MP which  is installed at Los
Alamos Nat. Labs. This include the one on Abyss web site with reference for
1 min run time to compute the trimix table.

In his latest book, Technical Diving in Depth, page 160, he also reference
that simulation was done on a SGI Origin SMP - that Origin 2000 is
government property. It also listed that the code was done in FORTRAN 77/90
and BASIC. Source code size is 1,640 line and cost was $4,500.


It seems that portion of the work was done with government resource. Is
there something I miss reading?

Thanks,

Leonard Tsai








-----Original Message-----
From: Christina M. Young [mailto:christina@ch*.co*]
Sent: Friday, February 22, 2002 5:34 PM
To: trey@ne*.co*; brw@la*.go*
Cc: techdiver@aquanaut.com
Subject: Re: MORE:: RGBM vs VPM Deco Models

If RGBM was developed, tested, etc under contract with the US Govt, or by a
govt employee using govt resources, then it is required to be public domain
(by law).  Back when I worked in the aerospace industry, all source code for
the weapons system software I developed under US govt contract was owned by
the US govt, not the contractor.

Privately developed stuff is totally different - we do not use govt labs for
product development.

As it is, Bruce Wienke e-mailed me privately, and said that RGBM was
developed using his own personal resources (in Fortran on his PC).  I assume
this includes all of development - design, coding, simulation, testing, etc.
Somehow I was under the assumption that this was developed and / or tested
at Los Alamos National Labs, using LANL resources.


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