[AccessD] Pi day

Paul Wolstenholme Paul.W at industrialcontrol.co.nz
Sun Mar 17 15:09:55 CDT 2024


Pi day this year has taught me where to find pi in the bible:

"Now he made the sea of cast metal ten cubits from brim to brim, circular
in form, and its height was five cubits, and thirty cubits in
circumference."
1 Kings 7:23 (NASB1995)

So pi was about 30 / 10 = 3.
Prior to the invention of the decimal point 9.55 cubits was reported as 10
cubits and it was good enough for everybody.

The only thing that has changed is people competing to be more precise than
their predecessors.

Paul Wolstenholme


On Fri, 15 Mar 2024 at 12:13, John Colby <jwcolby at gmail.com> wrote:

> As for how fast, the algorithm apparently doesn't scale well to more
> threads.  The cores weren't even all being used.
>
> On Thu, Mar 14, 2024 at 6:39 PM Bill Benson <bensonforums at gmail.com>
> wrote:
>
> > Reposted as former had an image not a link. If this dupes, apologies in
> > advance.
> >
> > I wonder how fast this will do that.
> >
> >
> >
> https://drive.google.com/file/d/1psf8DV2Rbi-fxnK-QpDniVWv6caKo8Zz/view?usp=drivesdk
> >
> > It is the system I am having built as we speak. Can’t wait to have a
> modern
> > PC, my 10 yr old Dell Latitude  on Win 7 is getting hard to find any
> > software left that can run on it. MS 365 doesn’t!
> >
> > BILL
> >
> > On Thu, Mar 14, 2024 at 6:21 PM John Colby <jwcolby at gmail.com> wrote:
> >
> > > To celebrate Pi day I downloaded PiFast and calculated Pi to 1 billion
> > > digits.  On my laptop with 4 real and 4 virtual cores, using the disk
> for
> > > intermediate results in some manner (unknown) it took 105 seconds to
> > > calculate Pi to 10 million digits.
> > >
> > > On my much more powerful 8 core 8 virtual cores laptop, it took 70
> > seconds.
> > >
> > > OTOH  it took 7 seconds to compute without using the disk at all.
> > >
> > > Then I tried to calculate 1 billion places without the disk and the
> > program
> > > just crashed.  Using the disk (SSDs on both computers) it took 58
> minutes
> > > or so.
> > >
> > > Happy pi day.
> > >
> > >
> > > --
> > > John W. Colby
> > > Colby Consulting
> > > --
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> > > Website: http://www.databaseadvisors.com
> > >
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> >
>
>
> --
> John W. Colby
> Colby Consulting
> --
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