calculate PI to 1 Million in under 1 second? Phenom can do it

[xPliziT]

Hahaha!!


run QuickPI so we can share results


and of course we can calculate much more than 1 million since its soo fast.
100 Million should be a nice test.

[LIKMARK]

where do you find it?

[xPliziT]

Goto http://home.istar.ca/~lyster/chart.html

there you find all you need

[Extelleron]

On an E8400 @ 3.6GHz, 4GB DDR2 @ 800MHz 5-4-4-15....

1 Million Digits: 0.67 seconds total
100 Million Digits: 163.52 seconds total
1 Billion Digits: 4453.81 seconds total

[Mechromancer]

Human math is flawed. We cannot resolve Pi with our inferior numbering system nor can we quantify the calculation power of our own brains with our metrics. We need to think more like the Progenitors...

Neat program though.

[Lestat]

(Thread switch unused - asumption is 1 core being used)

Computation of Pi to 1,000,000 digits
Method used : Chudnovsky
Started : Tue Aug 19 20:02:21 2008

Series size : 70514 (1,000,004 digits)
Series processing time : 0.53
Final value time : 0.09

Total time : 0.62 seconds
Total memory used : 12,285,829 (11.72 MB)

Processor utilization : 132.50%

----------------------------------------------------------------------------------------

-threads:4

QPI-QuickPi v4.5, (c) 2000-2008 S. Pagliarulo
Freely distributable, email: s_pagliarulo@hotmail.com

o Intel(R) Core(TM)2 Quad CPU Q9650 @ 3.00GHz detected
o Processor speed measured at 3.85 GHz
o Single processor with quad cores
o 1.2 GB of memory available
o Maximum number of threads set to 4
o Using default training data

Computation of Pi to 1,000,000 digits
Method used : Chudnovsky
Started : Tue Aug 19 20:04:41 2008

Series size : 70514 (1,000,004 digits)
Computing series, time : 0.53
Computing final value, time : 0.08

Total time : 0.62 seconds
Total memory used : 12,285,829 (11.72 MB)

Processor utilization : 120.00%
Press any key to continue . . .
--------------------------------------------------------------------------------------------------

and lastly when using the -train switch which find the optimal settings within qpi to run with.

o Intel(R) Core(TM)2 Quad CPU Q9650 @ 3.00GHz detected
o Processor speed measured at 3.85 GHz
o Single processor with quad cores
o 1.2 GB of memory available
o Maximum number of threads set to 4
o Using default training data
o Application training enabled

Starting 1st training phase, done
Starting 2nd training phase, done
Starting 3rd training phase, done

Computation of Pi to 1,000,000 digits
Method used : Chudnovsky
Started : Tue Aug 19 20:24:49 2008

Series size : 70514 (1,000,004 digits)
Computing series, time : 0.51
Computing final value, time : 0.08

Total time : 0.61 seconds
Total memory used : 90,781,374 (86.58 MB)

Processor utilization : 120.39%
Press any key to continue . . .

[Movieman]

Is it single threaded or multi threaded?

[xPliziT]

Its multi threaded.

[RunawayPrisoner]

Single from the looks of it. Only one of my cores is maxed out.

[xPliziT]

It doesnt show up to 100% cpu utilization on 4 cores but its automatic multi threading.
You can even specify how many threads should run.
command line: qpi 1000000 -stats -threads

[bowman]

133.33% utilization!

Not bad, by the way, the application closes down when I 'press any key' as it says. Doesn't work.

[xPliziT]

Hmmm start it from a command window?

[bowman]

Bah, I'm tired.