5 Trillion Digits of Pi - New world record
5 Trillion Digits of Pi - New world record
Sunday, 08 August 2010

A new world record - Pi to 5 trillion digits. The real shock is that all that was used was a desktop machine with not a supercomputer in sight.

Banner

 

Alexander J. Yee & Shigeru Kondo claim to have computed pi to 5 trillion digits using nothing but a desktop computer - a fairly up market machine with 12 physical cores and 24 hyperthreads, 96GBytes of Ram and 40TByes of disk storage.

 

pimachine

The machine that did the computation
(Alexander J. Yee & Shigeru Kondo)

 

To be clear Pi to 5 Trillion digits is 5,000,000,000,000 digits and the computation took 90 days to complete and 66 hours to verify. This is 2.3 trillion digits more than the previous record.and the file needed to store the results is 3.8 TBytes even using compression.

The key to the success is y-cruncher, a multi-threaded computation program. This program also holds the records for computing other constants to extreme precision - e, square root of 2 and so on.

The only question that remains is - why?

Yee's answer is: "Because it's Pi ... and because we can!"

Of course there is a lot hidden in that phrase "Because it's Pi" which the average human will simply miss.

On a more practical note using the parallelism offered by multiple cores to perform computations that once needed a supercomputer is interesting - it's a proof of principle. The same principles could be turned to other problems such as code generation and code cracking.

 

Banner


Robot Fear Of Falling - South Koreans Win DARPA Robotics Challenge
07/06/2015

It's all over! After waiting so long, we at last know how the big impressive robots did at the rescue tasks that DARPA thought up for them. And the sad news is that you aren't going to be rescued by a [ ... ]



Predix - A Platform for the Industrial Internet Of Things
30/06/2015

Predix, GE's forthcoming platform for the Industrial Internet is a cloud-based platform designed for building and powering industrial-strength apps. As GE prepares to share details about the Pred [ ... ]


More News

<ASIN:1591022002>

<ASIN:0312381859>

<ASIN:0802775624>

<ASIN:0387205713>

<ASIN:3540665722>

Last Updated ( Sunday, 08 August 2010 )
 
 

   
RSS feed of news items only
I Programmer News
Copyright © 2015 i-programmer.info. All Rights Reserved.
Joomla! is Free Software released under the GNU/GPL License.