By Alexander J. Yee
(Last updated: July 19, 2009)
All times in seconds. All times include base-conversions.
Processor(s): |
1.6 GHz Core Duo* T2060 Yonah |
2.8 GHz Pentium D 920 Presler |
Dual 3.2 GHz Quad-Core Xeon X5482 Harpertown |
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Memory: |
1.5 GB DDR2 533 MHz (dual channel) |
3 GB DDR2 533 MHz (dual channel) |
64 GB DDR2 FB-DIMM 800 MHz (quad channel) |
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Courtesy Of: |
Alexander Yee |
Alexander Yee |
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Version: |
v0.2.1.6773 (x86 SSE3 - AV) |
v0.2.1.6773 (x86 SSE3 - AV) |
v0.2.1.6773 (x64 SSE3 - AV) |
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Decimal Digits (approx) |
1 thread |
2 threads |
Scaling |
1 thread |
2 threads |
Scaling |
1 thread |
8 threads |
Scaling |
|
910,781 |
n = 218 |
70.730 |
49.280 |
1.44 |
60.395 |
41.802 |
1.44 |
20.515 |
7.093 |
2.89 |
1,821,563 |
n = 219 |
164.674 |
116.782 |
1.41 |
140.160 |
96.118 |
1.46 |
48.406 |
14.266 |
3.39 |
3,643,126 |
n = 220 |
381.546 |
270.519 |
1.41 |
322.787 |
219.695 |
1.47 |
112.016 |
28.000 |
4.00 |
7,286,252 |
n = 221 |
913.707 |
618.446 |
1.48 |
774.646 |
505.103 |
1.53 |
260.687 |
55.204 |
4.72 |
14,572,504 |
n = 222 |
2,185.30 |
1,373.02 |
1.60 |
1,853.13 |
1,156.67 |
1.60 |
598.734 |
110.562 |
5.42 |
29,145,009 |
n = 223 |
5,123 |
3,226.79 |
1.59 |
4,402 |
2,539.30 |
1.73 |
1,360.83 |
225.859 |
6.03 |
58,290,018 |
n = 224 |
11,924 |
7,274 |
1.64 |
10,126 |
5,570 |
1.82 |
3,099.89 |
480.063 |
6.46 |
116,580,037 |
n = 225 |
27,567 |
15,165 |
1.82 |
23,338 |
12,357 |
1.89 |
6,967 |
1,027.56 |
6.78 |
233,160,074 |
n = 226 |
15,495 |
2,227.67 |
6.95 |
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466,320,149 |
n = 227 |
34,596 |
4,913 |
7.04 |
||||||
932,640,298 |
n = 228 |
10,836 |
-- |
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1,865,280,596 |
n = 229 |
23,853 |
-- |
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3,730,561,193 |
n = 230 |
52,912 |
-- |
*This is the same laptop that was used to compute 116,580,041 digits in December 2006.
116 million digits was believed to be a new world record at the time, but it was later revealed that S. Kondo and S. Pagliarulo already had 2 billion digits but had yet to announce it.
That computation of 116 million digits took 38.5 hours using my old Java library. y-cruncher matched it in a mere 4 hours and 13 minutes on the same laptop.
On Nagisa, y-cruncher can do it in 17 minutes. That's a 136x improvement from two years ago!
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