Re: Pi to 10 trillion places

In article <43da2db7$0$85453$892e7fe2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Boris Uon <nospam@xxxxxxxxxx> wrote:

> <robin.bruce@xxxxxxxxx> wrote in message
> news:1138368257.710242.37420@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > No,
> >
> > I've not done it, but just looking at a graph for pi of decimal places
> > versus time (in years). It looks like we're due another step up from
> > Kanada's 1.2 trillion places in 2002. Anyone know who's working on this
> > stuff and how they're progressing? What's the major challenge to
> > overcome? Is it concepts in computer arithmetic that are lacking? Is it
> > the difficulties in co-ordinating the multiple processing elements
> > required or are there fundamental barriers in theory to be overcome? Is
> > it a weighted combination of the three?
> >
> > I'm coming at this from the perspective of someone developing
> > FPGA-based supercomputing nodes with an interest in potential future
> > applications.
> >
> > Cheers,
> >
> > Robin Bruce
> >
>
> There is no money to fund it. There is no need for it. Where would you
> put it? How could you check it?

No intrinsic need, indeed. But my understanding is that the driving
force behind these extended calculations is the need to test new
hardware. If I run the calculation on new hardware to 2 trillion
places, and it agrees with the previous 1.2-trillion place record, then
the chances are very good that there are no hardware bugs.

--Ron Bruck
.

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