Multi-Core Scaling: 2 x Intel Xeon X5482

Multi-threaded Pi Benchmark: y-cruncher v0.4.2

By Alexander J. Yee

(Last updated: October 19, 2009)

 

 

 

Benchmark Settings

Mode: Ram Only
Algorithm: Chudnovsky Formula
Priority: High

1 thread
  • y-cruncher set to use 1 thread
2 threads
  • Processor Affinity set to allow only 2 cores (same socket and same die)
  • y-cruncher set to use 2 threads
4 threads
  • Processor Affinity set to allow only 4 cores (all in the same socket)
  • y-cruncher set to use 4 threads
8 threads
  • y-cruncher set to use 8 threads

Benchmarks

All times in seconds. All times include base-conversions.

Processor(s):
2 x 3.2 GHz Intel Xeon - X5482 Harpertown
Memory:
64 GB DDR2 - 800 MHz (quad channel)
Courtesy Of:
Alexander Yee
Version:
v0.4.2.7438 (x64 SSE3)
Decimal Digits
1 thread
2 threads
4 threads
8 threads
2-t scaling
4-t scaling
8-t scaling
10,000
 0.113 0.121 0.125 0.118 0.934 0.904 0.958
12,000
 0.117 0.124 0.127 0.126 0.944 0.921 0.929
15,000
 0.119 0.125 0.128 0.128 0.952 0.930 0.930
20,000
 0.125 0.132 0.135 0.135 0.947 0.926 0.926
25,000
 0.136 0.137 0.140 0.139 0.993 0.971 0.978
40,000
 0.145 0.151 0.155 0.153 0.960 0.935 0.948
50,000
 0.155 0.161 1.164 0.161 0.963 0.945 0.963
75,000
 0.177 0.175 0.182 0.174 1.011 0.973 1.017
100,000
 0.197 0.191 0.199 0.190 1.031 0.990 1.037
120,000
 0.212 0.203 0.207 0.203 1.044 1.024 1.044
150,000
 0.234 0.225 0.231 0.222 1.040 1.013 1.054
200,000
 0.281 0.249 0.260 0.248 1.129 1.081 1.133
250,000
 0.324 0.281 0.289 0.278 1.153 1.121 1.165
400,000
 0.481 0.379 0.376 0.355 1.269 1.279 1.355
500,000
 0.599 0.456 0.473 0.447 1.314 1.266 1.340
750,000
 0.925 0.651 0.626 0.590 1.421 1.478 1.568
1,000,000
 1.236 0.811 0.751 0.716 1.524 1.646 1.726
1,200,000
 1.492 0.961 0.856 0.816 1.553 1.743 1.828
1,500,000
 1.973 1.212 1.057 0.964 1.628 1.867 2.047
2,000,000
 2.712 1.592 1.369 1.232 1.704 1.981 2.201
2,500,000
 3.457 1.999 1.654 1.491 1.729 2.090 2.319
4,000,000
 6.093 3.300 2.548 2.207 1.846 2.391 2.761
5,000,000
 7.775 4.173 3.129 2.678 1.863 2.485 2.903
7,500,000
 12.839 6.705 4.413 3.703 1.915 2.909 3.467
10,000,000
 17.634 9.178 5.924 4.774 1.921 2.977 3.694
12,000,000
 22.380 11.583 7.223 5.721 1.932 3.098 3.912
15,000,000
 28.568 14.778 8.958 6.343 1.933 3.189 4.504
20,000,000
 40.282 20.644 12.210 8.371 1.951 3.299 4.812
25,000,000
 51.777 26.424 15.374 10.206 1.959 3.368 5.073
40,000,000
 90.499 46.041 25.679 16.164 1.966 3.524 5.599
50,000,000
 116.753 59.310 33.105 20.333 1.969 3.527 5.742
75,000,000
 184.386 94.085 51.600 30.148 1.960 3.573 6.116
100,000,000
 259.993 131.811 72.006 41.555 1.972 3.611 6.257
120,000,000
 319.861 161.886 87.975 50.265 1.976 3.636 6.363
150,000,000
 415.614 208.945 112.918 63.533 1.989 3.681 6.542
200,000,000
 571.242 290.964 156.530 87.073 1.963 3.649 6.560
250,000,000
 729.127 374.483 201.449 110.530 1.947 3.619 6.597
400,000,000
 1,255.47 644.995 345.771 187.152 1.946 3.631 6.708
500,000,000
 1,613.64 829.654 443.505 239.040 1.945 3.638 6.751
750,000,000
 2,632.14 1,352.015 719.998 384.140 1.947 3.656 6.852
1,000,000,000
 3,590.845 1,835.183 975.866 520.192 1.957 3.680 6.903
1,200,000,000
 4,406.951 2,265.034 1,203.325 639.164 1.946 3.662 6.895
1,500,000,000
 5,787.757 2,964.019 1,572.761 834.262 1.953 3.680 6.938
2,000,000,000
 7,828.114 4,045.665 2,151.243 1,138.439 1.935 3.639 6.876
2,500,000,000
 10,133.537 5,232.871 2,773.893 1,464.551 1.937 3.653 6.919
4,000,000,000
 17,299.158 8,933.275 4,733.277 2,497.055 1.936 3.655 6.928
5,000,000,000
 22,371.035 11,528.510 6,100.917 3,206.745 1.940 3.667 6.976
7,500,000,000
 34,807.454 18,005.630 9,546.325 5,015.694 1.933 3.646 6.940
10,000,000,000
 48,532.222 25,180.430 13,328.940 6,999.450 1.927 3.641 6.934
12,000,000,000
 60,138.094 31,167.440 16,607.090 8,720.955 1.930 3.621 6.896

 


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