Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!purdue!decwrl!nsc!voder!apple!phil
From: phil@Apple.COM (Phil Ronzone)
Newsgroups: comp.unix.aux
Subject: Re: file size
Message-ID: <12532@apple.Apple.COM>
Date: 20 Jun 88 19:55:55 GMT
References: <6000@uwmcsd1.UUCP> <1190@unisoft.UUCP> <6034@uwmcsd1.UUCP>
Reply-To: phil@apple.apple.com.UUCP (Phil Ronzone)
Organization: Apple Computer A/UX Group
Lines: 21

In article <6034@uwmcsd1.UUCP> zdenko@csd4.milw.wisc.edu (Zdenko Tomasic) writes:
>>Let me know if you ever create a 2 GB file. :->
>Let's see: 
>In quantum chemistry calculations, in order to calculate electronic
>energy (including electron correlation) of a substance, one needs
>roughly N**4/8 integrals ... means a file of 14 003 408 896 bytes,
>i.e.  more than 14 GB.

Well, shucks.
That's almost as big as
my database file that will contain the
coordinates (relative to the center of the universe) of every
atom in the universe as well as misc. info as
velocity, energy states and history. So far, it looks
like it will take more than a few CD ROMs.
----------------------------------------------------------------
-- 
Philip K. Ronzone  A/UX System Architect
Apple Computer MS 27AJ 10500 N. DeAnza Blvd. Cupertino CA 95014
{amdahl,decwrl,sun,voder,nsc,mtxinu,dual,unisoft}!apple!phil
"In A/UX Release 4.0, /bin will still be there ...." P. Zigbooli