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-   -   Hardware Benchmark Jest Thread for 100M exponents (https://www.mersenneforum.org/showthread.php?t=13185)

zanmato 2013-12-22 22:25
Thanks for the tip, unfortunately I'm on linux so can't try 28.1 yet. I need to get a better cooler and improve case airflow first anyway. It didn't do it on the timed test, but when I started a torture test my cpu was thermal throttled after a few minutes.

henryzz 2013-12-22 22:50
[QUOTE=zanmato;362685]Thanks for the tip, unfortunately I'm on linux so can't try 28.1 yet. I need to get a better cooler and improve case airflow first anyway. It didn't do it on the timed test, but when I started a torture test my cpu was thermal throttled after a few minutes.[/QUOTE]
With the most recent versions of prime95 on haswell the efficiency of the program has caused a few problems. At the very least good coolers seem necessary. Some people really struggle to get their system stable even without overcloking. A lot of these systems will happily run error free on an older version of prime95 for years.

Mark Rose 2013-12-23 06:24
[QUOTE=zanmato;362672]Stock i5 4570 (4 core haswell, 6MB cache, 3.20GHz), mprime 27.9, DDR3-1600, headless (well, no desktop gui)

[code]threads iteration time estimated completion time
1 121 ms 465 days
2 63 ms 243 days
3 46 ms 178 days
4 40 ms 155 days[/code]

Bearing in mind the 4570 is only 3.2GHz, will faster ram improve this benchmark much?
[/QUOTE]

Yes. As you can see the 4th core doesn't add much because the system is memory bandwidth starved. Ideally you would expect to see around 34 ms, not 40 ms. If you keep using 27.9 without the Haswell FMA3 instructions, 1866 MHz is probably the sweet spot. If you upgrade to [url=http://mersenneforum.org/showpost.php?p=350674&postcount=238]28.1[/url], 2133 MHz is what I would suggest. However, as anything over 1600 MHz is a memory over clock, there is no guarantee the CPU will be stable at memory speeds higher than 1600 MHz. If you're shopping for RAM, CAS timings don't matter to mprime.

If you do upgrade to 28.1+, the FMA3 instructions cause Haswell to run hotter (up 0.1 volts), so make sure you have an after market cooler. The Hyper 212 Evo works great and is fairly inexpensive. There is also a version 28.2, but I haven't seen George release a 64-bit Linux binary yet.

ewmayer 2013-12-23 20:56
@George: Why can't the just-over-100Mdigit-sized numbers use FFT length 18432 K rather than 19200?

Prime95 2013-12-24 04:42
[QUOTE=ewmayer;362738]@George: Why can't the just-over-100Mdigit-sized numbers use FFT length 18432 K rather than 19200?[/QUOTE]

The 19200K FFT is faster than the 18432K FFT. This suggests some more optimizations may be possible.

Caffreys 2013-12-30 16:13
Xeon E5-1660v2 HT disabled
 
Xeon E5-1660v2 @3.7Ghz
4*2 DDR3-1333@1333Mhz Registered ECC

Prime95 v27.9 64 bits
Windows 7 64 bits

[code]
[Dec 30 15:51] Worker starting
[Dec 30 15:51] Using AVX FFT length 19200K, Pass1=768, Pass2=25K
[Dec 30 15:51] p: 332220523. Time: 131.57 ms.
[Dec 30 15:51] p: 332220523. Time: 131.85 ms.
[Dec 30 15:51] p: 332220523. Time: 131.76 ms.
[Dec 30 15:51] p: 332220523. Time: 131.97 ms.
[Dec 30 15:51] p: 332220523. Time: 131.87 ms.
[Dec 30 15:51] p: 332220523. Time: 131.85 ms.
[Dec 30 15:51] p: 332220523. Time: 131.84 ms.
[Dec 30 15:51] p: 332220523. Time: 131.83 ms.
[Dec 30 15:51] p: 332220523. Time: 131.81 ms.
[Dec 30 15:51] p: 332220523. Time: 132.04 ms.
[Dec 30 15:51] p: 332220523. Time: 131.89 ms.
[Dec 30 15:51] p: 332220523. Time: 131.96 ms.
[Dec 30 15:51] p: 332220523. Time: 131.86 ms.
[Dec 30 15:51] p: 332220523. Time: 131.92 ms.
[Dec 30 15:51] p: 332220523. Time: 132.11 ms.
[Dec 30 15:51] Iterations: 15. Total time: 1978.11 ms.
[Dec 30 15:51] Estimated time to complete this exponent: 507 days, 1 hour, 47 minutes.
[Dec 30 15:51] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 2 threads
[Dec 30 15:51] p: 332220523. Time: 68.76 ms.
[Dec 30 15:51] p: 332220523. Time: 68.90 ms.
[Dec 30 15:51] p: 332220523. Time: 68.92 ms.
[Dec 30 15:51] p: 332220523. Time: 68.98 ms.
[Dec 30 15:51] p: 332220523. Time: 68.91 ms.
[Dec 30 15:51] p: 332220523. Time: 68.92 ms.
[Dec 30 15:52] p: 332220523. Time: 68.97 ms.
[Dec 30 15:52] p: 332220523. Time: 68.85 ms.
[Dec 30 15:52] p: 332220523. Time: 69.00 ms.
[Dec 30 15:52] p: 332220523. Time: 68.93 ms.
[Dec 30 15:52] p: 332220523. Time: 68.84 ms.
[Dec 30 15:52] p: 332220523. Time: 68.94 ms.
[Dec 30 15:52] p: 332220523. Time: 68.92 ms.
[Dec 30 15:52] p: 332220523. Time: 69.05 ms.
[Dec 30 15:52] p: 332220523. Time: 68.90 ms.
[Dec 30 15:52] Iterations: 15. Total time: 1033.79 ms.
[Dec 30 15:52] Estimated time to complete this exponent: 265 days, 0 hours, 7 minutes.
[Dec 30 15:52] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 3 threads
[Dec 30 15:52] p: 332220523. Time: 46.63 ms.
[Dec 30 15:52] p: 332220523. Time: 46.80 ms.
[Dec 30 15:52] p: 332220523. Time: 46.81 ms.
[Dec 30 15:52] p: 332220523. Time: 46.74 ms.
[Dec 30 15:52] p: 332220523. Time: 46.88 ms.
[Dec 30 15:52] p: 332220523. Time: 46.74 ms.
[Dec 30 15:52] p: 332220523. Time: 46.82 ms.
[Dec 30 15:52] p: 332220523. Time: 46.75 ms.
[Dec 30 15:52] p: 332220523. Time: 46.78 ms.
[Dec 30 15:52] p: 332220523. Time: 46.74 ms.
[Dec 30 15:52] p: 332220523. Time: 46.78 ms.
[Dec 30 15:52] p: 332220523. Time: 46.83 ms.
[Dec 30 15:52] p: 332220523. Time: 46.76 ms.
[Dec 30 15:52] p: 332220523. Time: 46.79 ms.
[Dec 30 15:52] p: 332220523. Time: 46.80 ms.
[Dec 30 15:52] Iterations: 15. Total time: 701.65 ms.
[Dec 30 15:52] Estimated time to complete this exponent: 179 days, 20 hours, 42 minutes.
[Dec 30 15:52] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 4 threads
[Dec 30 15:52] p: 332220523. Time: 36.15 ms.
[Dec 30 15:52] p: 332220523. Time: 36.19 ms.
[Dec 30 15:52] p: 332220523. Time: 36.22 ms.
[Dec 30 15:52] p: 332220523. Time: 36.20 ms.
[Dec 30 15:52] p: 332220523. Time: 36.17 ms.
[Dec 30 15:52] p: 332220523. Time: 36.22 ms.
[Dec 30 15:52] p: 332220523. Time: 36.15 ms.
[Dec 30 15:52] p: 332220523. Time: 36.17 ms.
[Dec 30 15:52] p: 332220523. Time: 36.17 ms.
[Dec 30 15:52] p: 332220523. Time: 36.22 ms.
[Dec 30 15:52] p: 332220523. Time: 36.15 ms.
[Dec 30 15:52] p: 332220523. Time: 36.25 ms.
[Dec 30 15:52] p: 332220523. Time: 36.16 ms.
[Dec 30 15:52] p: 332220523. Time: 36.16 ms.
[Dec 30 15:52] p: 332220523. Time: 36.15 ms.
[Dec 30 15:52] Iterations: 15. Total time: 542.74 ms.
[Dec 30 15:52] Estimated time to complete this exponent: 139 days, 3 hours, 2 minutes.
[Dec 30 15:52] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 5 threads
[Dec 30 15:52] p: 332220523. Time: 29.53 ms.
[Dec 30 15:52] p: 332220523. Time: 29.65 ms.
[Dec 30 15:52] p: 332220523. Time: 30.19 ms.
[Dec 30 15:52] p: 332220523. Time: 30.24 ms.
[Dec 30 15:52] p: 332220523. Time: 30.22 ms.
[Dec 30 15:52] p: 332220523. Time: 30.21 ms.
[Dec 30 15:52] p: 332220523. Time: 30.49 ms.
[Dec 30 15:52] p: 332220523. Time: 30.54 ms.
[Dec 30 15:52] p: 332220523. Time: 31.11 ms.
[Dec 30 15:52] p: 332220523. Time: 31.25 ms.
[Dec 30 15:52] p: 332220523. Time: 31.30 ms.
[Dec 30 15:52] p: 332220523. Time: 31.03 ms.
[Dec 30 15:52] p: 332220523. Time: 31.67 ms.
[Dec 30 15:52] p: 332220523. Time: 30.97 ms.
[Dec 30 15:52] p: 332220523. Time: 30.98 ms.
[Dec 30 15:52] Iterations: 15. Total time: 459.37 ms.
[Dec 30 15:52] Estimated time to complete this exponent: 117 days, 18 hours, 9 minutes.
[Dec 30 15:52] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 6 threads
[Dec 30 15:52] p: 332220523. Time: 25.89 ms.
[Dec 30 15:52] p: 332220523. Time: 28.38 ms.
[Dec 30 15:52] p: 332220523. Time: 31.11 ms.
[Dec 30 15:52] p: 332220523. Time: 31.20 ms.
[Dec 30 15:52] p: 332220523. Time: 31.44 ms.
[Dec 30 15:52] p: 332220523. Time: 30.95 ms.
[Dec 30 15:52] p: 332220523. Time: 31.07 ms.
[Dec 30 15:52] p: 332220523. Time: 31.17 ms.
[Dec 30 15:52] p: 332220523. Time: 31.80 ms.
[Dec 30 15:52] p: 332220523. Time: 31.38 ms.
[Dec 30 15:52] p: 332220523. Time: 31.03 ms.
[Dec 30 15:52] p: 332220523. Time: 30.93 ms.
[Dec 30 15:52] p: 332220523. Time: 31.23 ms.
[Dec 30 15:52] p: 332220523. Time: 30.77 ms.
[Dec 30 15:52] p: 332220523. Time: 31.02 ms.
[Dec 30 15:52] Iterations: 15. Total time: 459.37 ms.
[Dec 30 15:52] Estimated time to complete this exponent: 117 days, 18 hours, 9 minutes.
[Dec 30 15:52] Worker stopped.
[/code]

Caffreys 2013-12-30 16:24
Xeon E5-1660v2 HT enabled
 
Xeon E5-1660v2 @3.7Ghz
4*2 DDR3-1333@1333Mhz Registered ECC

Prime95 v27.9 64 bits
Windows 7 64 bits
AffinityScramble2=02468A13579B

[code]
[Dec 30 15:44] Worker starting
[Dec 30 15:44] Using AVX FFT length 19200K, Pass1=768, Pass2=25K
[Dec 30 15:44] p: 332220523. Time: 133.56 ms.
[Dec 30 15:44] p: 332220523. Time: 134.21 ms.
[Dec 30 15:44] p: 332220523. Time: 134.21 ms.
[Dec 30 15:44] p: 332220523. Time: 134.18 ms.
[Dec 30 15:44] p: 332220523. Time: 134.13 ms.
[Dec 30 15:44] p: 332220523. Time: 134.52 ms.
[Dec 30 15:44] p: 332220523. Time: 134.11 ms.
[Dec 30 15:44] p: 332220523. Time: 134.16 ms.
[Dec 30 15:44] p: 332220523. Time: 134.16 ms.
[Dec 30 15:44] p: 332220523. Time: 134.15 ms.
...
[Dec 30 15:44] Iterations: 15. Total time: 2018.52 ms.
[Dec 30 15:44] Estimated time to complete this exponent: 517 days, 10 hours, 22 minutes.
[Dec 30 15:44] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 2 threads
[Dec 30 15:44] p: 332220523. Time: 69.30 ms.
[Dec 30 15:44] p: 332220523. Time: 69.49 ms.
[Dec 30 15:44] p: 332220523. Time: 69.46 ms.
[Dec 30 15:44] p: 332220523. Time: 69.47 ms.
[Dec 30 15:44] p: 332220523. Time: 69.62 ms.
[Dec 30 15:44] p: 332220523. Time: 69.49 ms.
[Dec 30 15:44] p: 332220523. Time: 69.51 ms.
[Dec 30 15:44] p: 332220523. Time: 69.52 ms.
[Dec 30 15:44] p: 332220523. Time: 69.41 ms.
[Dec 30 15:44] p: 332220523. Time: 69.47 ms.
...
[Dec 30 15:44] Iterations: 15. Total time: 1042.47 ms.
[Dec 30 15:44] Estimated time to complete this exponent: 267 days, 5 hours, 30 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 3 threads
[Dec 30 15:45] p: 332220523. Time: 46.57 ms.
[Dec 30 15:45] p: 332220523. Time: 47.12 ms.
[Dec 30 15:45] p: 332220523. Time: 47.13 ms.
[Dec 30 15:45] p: 332220523. Time: 47.14 ms.
[Dec 30 15:45] p: 332220523. Time: 47.17 ms.
[Dec 30 15:45] p: 332220523. Time: 47.16 ms.
[Dec 30 15:45] p: 332220523. Time: 47.15 ms.
[Dec 30 15:45] p: 332220523. Time: 47.13 ms.
[Dec 30 15:45] p: 332220523. Time: 47.09 ms.
[Dec 30 15:45] p: 332220523. Time: 47.17 ms.
...
[Dec 30 15:45] Iterations: 15. Total time: 706.54 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 181 days, 2 hours, 46 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 4 threads
[Dec 30 15:45] p: 332220523. Time: 36.37 ms.
[Dec 30 15:45] p: 332220523. Time: 36.46 ms.
[Dec 30 15:45] p: 332220523. Time: 36.41 ms.
[Dec 30 15:45] p: 332220523. Time: 36.41 ms.
[Dec 30 15:45] p: 332220523. Time: 36.44 ms.
[Dec 30 15:45] p: 332220523. Time: 36.43 ms.
[Dec 30 15:45] p: 332220523. Time: 36.44 ms.
[Dec 30 15:45] p: 332220523. Time: 36.41 ms.
[Dec 30 15:45] p: 332220523. Time: 36.43 ms.
[Dec 30 15:45] p: 332220523. Time: 36.38 ms.
...
[Dec 30 15:45] Iterations: 15. Total time: 546.48 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 140 days, 2 hours, 3 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 5 threads
[Dec 30 15:45] p: 332220523. Time: 29.63 ms.
[Dec 30 15:45] p: 332220523. Time: 30.02 ms.
[Dec 30 15:45] p: 332220523. Time: 30.20 ms.
[Dec 30 15:45] p: 332220523. Time: 30.36 ms.
[Dec 30 15:45] p: 332220523. Time: 30.48 ms.
[Dec 30 15:45] p: 332220523. Time: 31.31 ms.
[Dec 30 15:45] p: 332220523. Time: 30.33 ms.
[Dec 30 15:45] p: 332220523. Time: 31.31 ms.
[Dec 30 15:45] p: 332220523. Time: 29.76 ms.
[Dec 30 15:45] p: 332220523. Time: 30.34 ms.
...
[Dec 30 15:45] Iterations: 15. Total time: 457.47 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 117 days, 6 hours, 26 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 6 threads
[Dec 30 15:45] p: 332220523. Time: 25.96 ms.
[Dec 30 15:45] p: 332220523. Time: 26.22 ms.
[Dec 30 15:45] p: 332220523. Time: 28.00 ms.
[Dec 30 15:45] p: 332220523. Time: 26.82 ms.
[Dec 30 15:45] p: 332220523. Time: 26.84 ms.
[Dec 30 15:45] p: 332220523. Time: 27.55 ms.
[Dec 30 15:45] p: 332220523. Time: 26.74 ms.
[Dec 30 15:45] p: 332220523. Time: 26.86 ms.
[Dec 30 15:45] p: 332220523. Time: 26.49 ms.
[Dec 30 15:45] p: 332220523. Time: 27.29 ms.
[Dec 30 15:45] p: 332220523. Time: 26.05 ms.
[Dec 30 15:45] p: 332220523. Time: 26.88 ms.
[Dec 30 15:45] p: 332220523. Time: 27.39 ms.
[Dec 30 15:45] p: 332220523. Time: 26.82 ms.
[Dec 30 15:45] p: 332220523. Time: 26.78 ms.
[Dec 30 15:45] Iterations: 15. Total time: 402.70 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 103 days, 5 hours, 31 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 7 threads
[Dec 30 15:45] p: 332220523. Time: 26.53 ms.
[Dec 30 15:45] p: 332220523. Time: 26.29 ms.
[Dec 30 15:45] p: 332220523. Time: 27.33 ms.
[Dec 30 15:45] p: 332220523. Time: 29.14 ms.
[Dec 30 15:45] p: 332220523. Time: 27.75 ms.
[Dec 30 15:45] p: 332220523. Time: 27.33 ms.
[Dec 30 15:45] p: 332220523. Time: 27.31 ms.
[Dec 30 15:45] p: 332220523. Time: 27.22 ms.
[Dec 30 15:45] p: 332220523. Time: 26.77 ms.
[Dec 30 15:45] p: 332220523. Time: 27.93 ms.
[Dec 30 15:45] p: 332220523. Time: 27.43 ms.
[Dec 30 15:45] p: 332220523. Time: 27.31 ms.
[Dec 30 15:45] p: 332220523. Time: 28.00 ms.
[Dec 30 15:45] p: 332220523. Time: 27.28 ms.
[Dec 30 15:45] p: 332220523. Time: 27.25 ms.
[Dec 30 15:45] Iterations: 15. Total time: 410.87 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 105 days, 7 hours, 47 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 8 threads
[Dec 30 15:45] p: 332220523. Time: 26.74 ms.
[Dec 30 15:45] p: 332220523. Time: 26.61 ms.
[Dec 30 15:45] p: 332220523. Time: 27.56 ms.
[Dec 30 15:45] p: 332220523. Time: 27.69 ms.
[Dec 30 15:45] p: 332220523. Time: 27.92 ms.
[Dec 30 15:45] p: 332220523. Time: 27.45 ms.
[Dec 30 15:45] p: 332220523. Time: 27.62 ms.
[Dec 30 15:45] p: 332220523. Time: 27.58 ms.
[Dec 30 15:45] p: 332220523. Time: 27.68 ms.
[Dec 30 15:45] p: 332220523. Time: 27.98 ms.
[Dec 30 15:45] p: 332220523. Time: 27.10 ms.
[Dec 30 15:45] p: 332220523. Time: 27.74 ms.
[Dec 30 15:45] p: 332220523. Time: 27.79 ms.
[Dec 30 15:45] p: 332220523. Time: 28.05 ms.
[Dec 30 15:45] p: 332220523. Time: 27.66 ms.
[Dec 30 15:45] Iterations: 15. Total time: 413.18 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 105 days, 21 hours, 57 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 9 threads
[Dec 30 15:45] p: 332220523. Time: 26.94 ms.
[Dec 30 15:45] p: 332220523. Time: 27.39 ms.
[Dec 30 15:45] p: 332220523. Time: 28.39 ms.
[Dec 30 15:45] p: 332220523. Time: 28.26 ms.
[Dec 30 15:45] p: 332220523. Time: 28.04 ms.
[Dec 30 15:45] p: 332220523. Time: 28.10 ms.
[Dec 30 15:45] p: 332220523. Time: 28.12 ms.
[Dec 30 15:45] p: 332220523. Time: 28.22 ms.
[Dec 30 15:45] p: 332220523. Time: 27.98 ms.
[Dec 30 15:45] p: 332220523. Time: 27.75 ms.
[Dec 30 15:45] p: 332220523. Time: 28.52 ms.
[Dec 30 15:45] p: 332220523. Time: 26.96 ms.
[Dec 30 15:45] p: 332220523. Time: 28.45 ms.
[Dec 30 15:45] p: 332220523. Time: 28.94 ms.
[Dec 30 15:45] p: 332220523. Time: 29.80 ms.
[Dec 30 15:45] Iterations: 15. Total time: 421.86 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 108 days, 3 hours, 23 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 10 threads
[Dec 30 15:45] p: 332220523. Time: 27.66 ms.
[Dec 30 15:45] p: 332220523. Time: 28.59 ms.
[Dec 30 15:45] p: 332220523. Time: 28.67 ms.
[Dec 30 15:45] p: 332220523. Time: 28.33 ms.
[Dec 30 15:45] p: 332220523. Time: 28.35 ms.
[Dec 30 15:45] p: 332220523. Time: 28.67 ms.
[Dec 30 15:45] p: 332220523. Time: 27.65 ms.
[Dec 30 15:45] p: 332220523. Time: 28.34 ms.
[Dec 30 15:45] p: 332220523. Time: 28.31 ms.
[Dec 30 15:45] p: 332220523. Time: 29.10 ms.
[Dec 30 15:45] p: 332220523. Time: 28.51 ms.
[Dec 30 15:45] p: 332220523. Time: 28.54 ms.
[Dec 30 15:45] p: 332220523. Time: 28.44 ms.
[Dec 30 15:45] p: 332220523. Time: 28.86 ms.
[Dec 30 15:45] p: 332220523. Time: 28.43 ms.
[Dec 30 15:45] Iterations: 15. Total time: 426.45 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 109 days, 7 hours, 37 minutes.
[Dec 30 15:45] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 11 threads
[Dec 30 15:45] p: 332220523. Time: 27.75 ms.
[Dec 30 15:45] p: 332220523. Time: 27.77 ms.
[Dec 30 15:45] p: 332220523. Time: 30.19 ms.
[Dec 30 15:45] p: 332220523. Time: 28.70 ms.
[Dec 30 15:45] p: 332220523. Time: 28.82 ms.
[Dec 30 15:45] p: 332220523. Time: 29.75 ms.
[Dec 30 15:45] p: 332220523. Time: 29.04 ms.
[Dec 30 15:45] p: 332220523. Time: 29.60 ms.
[Dec 30 15:45] p: 332220523. Time: 28.95 ms.
[Dec 30 15:45] p: 332220523. Time: 29.36 ms.
[Dec 30 15:45] p: 332220523. Time: 29.05 ms.
[Dec 30 15:45] p: 332220523. Time: 28.96 ms.
[Dec 30 15:45] p: 332220523. Time: 28.79 ms.
[Dec 30 15:45] p: 332220523. Time: 30.37 ms.
[Dec 30 15:45] p: 332220523. Time: 28.85 ms.
[Dec 30 15:45] Iterations: 15. Total time: 435.97 ms.
[Dec 30 15:45] Estimated time to complete this exponent: 111 days, 18 hours, 11 minutes.
[Dec 30 15:46] Using AVX FFT length 19200K, Pass1=768, Pass2=25K, 12 threads
[Dec 30 15:46] p: 332220523. Time: 28.43 ms.
[Dec 30 15:46] p: 332220523. Time: 28.81 ms.
[Dec 30 15:46] p: 332220523. Time: 31.01 ms.
[Dec 30 15:46] p: 332220523. Time: 28.48 ms.
[Dec 30 15:46] p: 332220523. Time: 29.53 ms.
[Dec 30 15:46] p: 332220523. Time: 29.35 ms.
[Dec 30 15:46] p: 332220523. Time: 30.40 ms.
[Dec 30 15:46] p: 332220523. Time: 29.52 ms.
[Dec 30 15:46] p: 332220523. Time: 31.04 ms.
[Dec 30 15:46] p: 332220523. Time: 31.37 ms.
[Dec 30 15:46] p: 332220523. Time: 30.70 ms.
[Dec 30 15:46] p: 332220523. Time: 31.28 ms.
[Dec 30 15:46] p: 332220523. Time: 30.78 ms.
[Dec 30 15:46] p: 332220523. Time: 31.30 ms.
[Dec 30 15:46] p: 332220523. Time: 31.14 ms.
[Dec 30 15:46] Iterations: 15. Total time: 453.14 ms.
[Dec 30 15:46] Estimated time to complete this exponent: 116 days, 3 hours, 48 minutes.
[Dec 30 15:46] Worker stopped.
[/code]

henryzz 2013-12-30 16:25
You get very little bonus from going over 4 cores. Faster memory would help that.

danaj 2014-01-03 08:01
4770K @ 4.3GHz, DDR3 2133, Linux, P95 v28.1. Hyperthreading on, but P95 set to use 1 thread in local.txt.
[code]threads iteration time estimated completion time
1 89 ms 342 days
2 48 ms 183 days
3 35 ms 133 days
4 30 ms 114 days[/code]

imwithid 2014-03-13 03:04
Hardware/Software:

[code]
Linux64,Prime95,v28.5,build 1

*-core
description: Motherboard
product: D54250WYK
vendor: Intel Corporation
physical id: 0
version: H13922-303
*-cpu
description: CPU
product: Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz
vendor: Intel Corp.
physical id: 3a
bus info: cpu@0
version: Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz
slot: CPU 1
size: 1300MHz
capacity: 1300MHz
width: 64 bits
clock: 100MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cpufreq
configuration: cores=2 enabledcores=2 threads=4
*-cache:0
description: L2 cache
physical id: 3b
slot: CPU Internal L2
size: 512KiB
capacity: 512KiB
capabilities: internal write-back unified
*-cache:1
description: L1 cache
physical id: 3c
slot: CPU Internal L1
size: 128KiB
capacity: 128KiB
capabilities: internal write-back
*-cache:2
description: L3 cache
physical id: 3d
slot: CPU Internal L3
size: 3MiB
capacity: 3MiB
capabilities: internal write-back unified
*-memory
description: System Memory
physical id: 3e
slot: System board or motherboard
size: 8GiB
*-bank:0
description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: 9905428-155.A00G
vendor: Kingston
physical id: 0
serial: 021029051009
slot: DIMM 1
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
[/code]Output:

[code]
[Worker #1 Mar 12 22:51] Worker starting
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K
[Worker #1 Mar 12 22:51] p: 332220523. Time: 156.783 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.703 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 157.924 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.731 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.681 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.133 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 159.036 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 157.912 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.577 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.121 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 1.583 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 608 days, 12 hours, 47 minutes.
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K, 2 threads
[Worker #1 Mar 12 22:51] p: 332220523. Time: 88.864 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 94.522 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 93.481 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 98.519 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 109.706 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 93.544 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 91.801 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 95.057 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 94.548 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 93.265 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 0.953 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 366 days, 13 hours, 26 minutes.
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K, 3 threads
[Worker #1 Mar 12 22:51] p: 332220523. Time: 101.237 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.734 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.987 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 108.036 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 107.354 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.805 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.428 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.836 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 103.785 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 108.592 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 1.056 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 405 days, 23 hours, 14 minutes.
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K, 4 threads
[Worker #1 Mar 12 22:51] p: 332220523. Time: 101.787 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 106.670 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.426 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.669 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.779 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.180 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 109.225 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 109.493 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.103 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 107.176 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 1.059 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 407 days, 0 hours, 16 minutes.
[Worker #1 Mar 12 22:51] Worker stopped.
[/code]Not bad for this little engine?

kracker 2014-03-13 03:11
[QUOTE=imwithid;368862]Hardware/Software:

[code]
Linux64,Prime95,v28.5,build 1
[/code]

[code]
[Worker #1 Mar 12 22:51] Worker starting
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K
[Worker #1 Mar 12 22:51] p: 332220523. Time: 156.783 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.703 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 157.924 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.731 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.681 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.133 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 159.036 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 157.912 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.577 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 158.121 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 1.583 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 608 days, 12 hours, 47 minutes.
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K, 2 threads
[Worker #1 Mar 12 22:51] p: 332220523. Time: 88.864 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 94.522 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 93.481 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 98.519 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 109.706 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 93.544 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 91.801 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 95.057 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 94.548 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 93.265 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 0.953 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 366 days, 13 hours, 26 minutes.
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K, 3 threads
[Worker #1 Mar 12 22:51] p: 332220523. Time: 101.237 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.734 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.987 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 108.036 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 107.354 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.805 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.428 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.836 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 103.785 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 108.592 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 1.056 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 405 days, 23 hours, 14 minutes.
[Worker #1 Mar 12 22:51] Using FMA3 FFT length 18M, Pass1=1536, Pass2=12K, 4 threads
[Worker #1 Mar 12 22:51] p: 332220523. Time: 101.787 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 106.670 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.426 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.669 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.779 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 104.180 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 109.225 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 109.493 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 105.103 ms.
[Worker #1 Mar 12 22:51] p: 332220523. Time: 107.176 ms.
[Worker #1 Mar 12 22:51] Iterations: 10. Total time: 1.059 sec.
[Worker #1 Mar 12 22:51] Estimated time to complete this exponent: 407 days, 0 hours, 16 minutes.
[Worker #1 Mar 12 22:51] Worker stopped.
[/code]Not bad for this little engine?[/QUOTE]

Very impressive, especially looking at a [I]15W[/I] TDP CPU. Not sure, but you may be memory bottlenecked if running in single channel.


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