# Mathematicians Calculate 10 Trillion Digits of Pi With Xeons

By - Source: Numberworld | B 84 comments

Mmm...3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201

For the first time mathematicians were able to calculate the Pi constant with 10 trillion decimal digits.

Ten trillion would represent a 1 with 13 zeros. If you were to print that number on paper, you would need about 2.87 billion sheets, based on a standard configuration of about 3500 digits per sheet. Such a stack of paper would reach a height of 21.4 miles.

According to an unofficial announcement the calculation of the 10 trillion digits, it took 371 days and an additional 45 hours to verify on a system equipped with two Intel Xeon X5680 processors, 96 GB of memory and 24 2 TB hard drives. Only the first 5 trillion are offered for download as decimals via five separate downloads totaling 1.91 TB at this time.

The record of 10 trillion records doubles the previous record of 5 trillion digits, which was posted in August of this year.

There are 84 Comments. B
• 29
Parsian , November 12, 2011 6:14 AM
- Two Intel Xeon Hexa Core server CPUs: \$ 7600.00
- 96 Giga Bytes of DDR3 RAM: \$ 2970.00
- 2 TB of Harddrive, Xeon Dual Socket Motherboard and Power Supply: \$1100.00
- CALCULATING PIE TO 10 TRILLION DIGITS in 371 days: PRICELESS!!!!!!
• 27
pteek , November 12, 2011 5:17 AM
And the point?

They could have folded for the cure.
• 27
BlackHawk91 , November 12, 2011 6:01 AM
Why would I want to download 1.91 TB of just numbers
• 27
pteek , November 12, 2011 5:17 AM
And the point?

They could have folded for the cure.
• 22
fancarolina , November 12, 2011 5:23 AM
I wonder if this scales linearly, would adding two more processors cut the time in half?
• 10
atikkur , November 12, 2011 5:36 AM
and how it compared to the gpu? would compute it too with more lesser time?
• 17
back_by_demand , November 12, 2011 5:37 AM
Are they hoping that when they get to something daft like 100 trillion digits is stops recurring and becomes a fixed number?
• 8
andy_newton , November 12, 2011 5:45 AM
What a useless use of such a computing power. Might as well make a heater out of those Xeon machines for my dog.
• 7
alyoshka , November 12, 2011 5:50 AM
Another calculation...... that's not to anyone's use..... plus the amount of electricity they wasted calculating that crap, they could have easily folded those 2 processors and got a good number on the folding list atleast helping someone calculate something more meaningful and helpful.
• 27
BlackHawk91 , November 12, 2011 6:01 AM
Why would I want to download 1.91 TB of just numbers
• 9
Anonymous , November 12, 2011 6:09 AM
"waa its not helpful, you should use it for curing blahblah disease"

stfu. without scientific and mathematical advances, you wouldn't be able to 'fold' at all. this is a mathematical advancement, which will lead to more accurate scientific measurements. if we followed your logic, we'd still be creating scientific ways to determine if someone is a witch.
• 29
Parsian , November 12, 2011 6:14 AM
- Two Intel Xeon Hexa Core server CPUs: \$ 7600.00
- 96 Giga Bytes of DDR3 RAM: \$ 2970.00
- 2 TB of Harddrive, Xeon Dual Socket Motherboard and Power Supply: \$1100.00
- CALCULATING PIE TO 10 TRILLION DIGITS in 371 days: PRICELESS!!!!!!
• -7
de5_Roy , November 12, 2011 6:28 AM
if they used two bulldozer fxes to count those pi numbers they would have
melt all of north pole then vaporize all the water.
raised global warming by 11c.
provided heating for all of siberia.
helped cook world's largest cpu powered pizza oven.
made human torch blush.
• -9
julius 85 , November 12, 2011 6:37 AM
What a waste...
• 20
memadmax , November 12, 2011 6:49 AM
To the average person, these calculations are worthless... but to a mathematician working at NASA they are a gold mine... I guess... But I would assume that NASA would get the same number faster from their own supercomputers...
• 5
joytech22 , November 12, 2011 7:36 AM
I swear a CUDA capable GPU would crunch much more then that in the same time frame.
In the end it would all still be useless to us lol.
• 11
cmartin011 , November 12, 2011 7:37 AM
Quote:
And my version of this is...

- Two Intel Xeon Hexa Core server CPUs: \$ 7600.00- 96 Giga Bytes of DDR3 RAM: \$ 2970.00- 2 TB of Harddrive, Xeon Dual Socket Motherboard and Power Supply: \$1100.00- CALCULATING PIE TO 10 TRILLION DIGITS in 371 days: USELESS!!!!!!

And my version of this is...

- Two Intel Xeon Hexa Core server CPUs: \$ 7600.00- 96 Giga Bytes of DDR3 RAM: \$ 2970.00- 24 2 TB of Harddrive \$ 5759.00, Xeon Dual Socket Motherboard and Power Supply: \$1100.00- Having the Biggest slice of pie: PRICELESS!!!!!!
• 5
cmartin011 , November 12, 2011 7:39 AM
i was just saying to my self the price of hard drives has gone thru the roof!
• 7
danwat1234 , November 12, 2011 7:49 AM
BlackHawk91Why would I want to download 1.91 TB of just numbers

Imagine the size uncompressed!
• 17
de5_Roy , November 12, 2011 8:20 AM
chuck norris counted over 50 trillion digits of pi by counting the number of facial hair he has.