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Old 2012-09-19, 08:05   #1
ET_
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Hi everybody!

I am reworking productivity and testing pages on FermatSearch (http://www.fermatsearch.org/productivity.html ).

I'd need data (specifically, k/sec) for mmff working on Fermat numbers, specifically for the following ranges:

N = 28, 32, 36, 40, 44, 48, 54, 60, 80, 100, 150.

It would be fine if we could fill up the following table:

Range: k=1e15 - 1.1e15

Code:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 460 | 951 M/s| 941 M/s| 835 M/s| 483 M/s| 437 M/s| 395 M/s| 350 M/s| 303 M/s| 169 M/s| 144 M/s|  63 M/s|
GTX 470 |1560 M/s|        |        |        |        |        |        |        |        |        |        |
GTX 4802|1866 M/s|1812 M/s|1634 M/s|1010 M/s| 920 M/s| 840 M/s| 747 M/s| 651 M/s| 358 M/s| 304 M/s| 138 M/s|
GTX 560 |1243 M/s|1204 M/s|1079 M/s| 654 M/s| 593 M/s| 540 M/s| 479 M/s| 416 M/s| 235 M/s| 199 M/s|  87 M/s|
GTX 570 |        |        |        |        |        |        |        |        |        |        |        |
GTX 5801|2303 M/s|2232 M/s|2023 M/s|1230 M/s|1116 M/s|1021 M/s| 902 M/s| 784 M/s| 442 M/s| 372 M/s| 120 M/s|
GTX 6802|1689 M/s|1645 M/s|1473 M/s| 868 M/s| 789 M/s| 705 M/s| 625 M/s| 543 M/s| 303 M/s| 258 M/s|  -  M/s|
------------------------------------------------------------------------------------------------------------
1 - GPUSieveSize=16(default), GPUSieveProcessSize=8 (default).
2 - GPUSievePrimes default.

GPU SievePrimes:
Code:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 460 |  90000 |  80000 |  90000 | 200000 | 210000 | 210000 | 240000 | 270000 | 600000 | 650000 | 950000 |
GTX 470 |  70000 |        |        |        |        |        |        |        |        |        |        |
GTX 480 |        |        |        |        |        |        |        |        |        |        |        |
GTX 560 |  70000 |  70000 |  80000 | 120000 | 140000 | 150000 | 180000 | 230000 | 300000 | 400000 | 700000 |
GTX 570 |        |        |        |        |        |        |        |        |        |        |        |
GTX 580 | 100000 | 100000 |  82486 | 100000 | 150000 | 150000 | 200000 | 200000 | 300000 | 300000 | 900000 |
GTX 680 |        |        |        |        |        |        |        |        |        |        |        |
------------------------------------------------------------------------------------------------------------

Thanks, Luigi
Last fiddled with by ET_ on 2013-02-24 at 13:07
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Old 2012-09-19, 14:23   #2
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Remember to find the optimal GPUSievePrimes for each n. Do you need data for GTX 460?
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Old 2012-09-19, 15:03   #3
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Quote:
Originally Posted by ATH View Post
Remember to find the optimal GPUSievePrimes for each n. Do you need data for GTX 460?
Yes, why not?... Thanks.

Luigi
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Old 2012-09-19, 18:27   #4
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Code:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 460 | 938 M/s| 926 M/s| 822 M/s| 740 M/s| 676 M/s| 395 M/s| 350 M/s| 311 M/s| 170 M/s| 142 M/s| 62 M/s |

GPUSievePrimes:
Code:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 460 |  80000 |  90000 | 100000 | 120000 | 160000 | 210000 | 240000 | 270000 | 450000 | 650000 | 900000 |

Note that currently mmff only works for k>=224 and k*2n+1 <= 2188, so for n=150 you can only do:
FermatFactor=150,174,188
which only takes 16min on a GTX 460.

The highest working n=159 only works for:
FermatFactor=159,183,188
which takes 40sec.

The highest working n for which there is still work to do < 2188 according to: http://www.fermatsearch.org/stat/done.php
is n=146:
FermatFactor=146,3e12,188
Last fiddled with by ATH on 2012-09-19 at 18:39
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Old 2012-09-19, 19:43   #5
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Thanks for reporting the GPUSievePrimes too. I'm fairly certain that the optimum setting won't change much for each Nvidia model.

Note that timings will change as k increases. As the bit size of the factor increases, wider multiplications are required.

Let's specify a specific k range to benchmark - something representative of current reservations (like 1e15 to 1.1e15).
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Old 2012-09-20, 03:25   #6
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Quote:
Originally Posted by Prime95 View Post
Thanks for reporting the GPUSievePrimes too. I'm fairly certain that the optimum setting won't change much for each Nvidia model.

Note that timings will change as k increases. As the bit size of the factor increases, wider multiplications are required.

Let's specify a specific k range to benchmark - something representative of current reservations (like 1e15 to 1.1e15).
Ok, I'll need to rerun test tomorrow then at new k if we agree on 1e15-1.1e15.

Btw GPUSievePrimes have a range that gives the same speed and the range is longer for higher n. For n=150 basically 600k to 1075k give about the same speed.
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Old 2012-09-20, 08:28   #7
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Quote:
Originally Posted by ATH View Post
Ok, I'll need to rerun test tomorrow then at new k if we agree on 1e15-1.1e15.
[...]
I agree.

The first post has been updated.

Thanks ATH.

Luigi
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Old 2012-09-21, 06:37   #8
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k=1e15-1.1e15:
(except n=150 as I said, I can only do 2187 to 2188 ~ k=1.37*1011-2.74*1011)

Code:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 460 | 951 M/s| 941 M/s| 835 M/s| 483 M/s| 437 M/s| 395 M/s| 350 M/s| 303 M/s| 169 M/s| 144 M/s| 63 M/s |


GPUSievePrimes:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 460 |  90000 |  80000 |  90000 | 200000 | 210000 | 210000 | 240000 | 270000 | 600000 | 650000 | 950000 |
Last fiddled with by ATH on 2012-09-21 at 06:38
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Old 2012-09-24, 10:11   #9
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Quote:
Originally Posted by ATH View Post
k=1e15-1.1e15:
(except n=150 as I said, I can only do 2187 to 2188 ~ k=1.37*1011-2.74*1011)
Benchmark for a GTX560

Code:
        ----------------------------------------------------------------------------------------------------
        |   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 560 |1243 M/s|1204 M/s|1079 M/s| 654 M/s| 593 M/s| 540 M/s| 479 M/s| 416 M/s| 235 M/s| 199 M/s|  87M/s |


GPUSievePrimes:
        ----------------------------------------------------------------------------------------------------
        |   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 560 |  70000 |  70000 |  80000 | 120000 | 140000 | 150000 | 180000 | 230000 | 300000 | 400000 | 700000 |
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Old 2012-09-24, 10:17   #10
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Quote:
Originally Posted by Jatheski View Post
Benchmark for a GTX560

Code:
        ----------------------------------------------------------------------------------------------------
        |   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 560 |1243 M/s|1204 M/s|1079 M/s| 654 M/s| 593 M/s| 540 M/s| 479 M/s| 416 M/s| 235 M/s| 199 M/s|  87M/s |


GPUSievePrimes:
        ----------------------------------------------------------------------------------------------------
        |   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 560 |  70000 |  70000 |  80000 | 120000 | 140000 | 150000 | 180000 | 230000 | 300000 | 400000 | 700000 |
Thanks Fabrice!

Luigi
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Old 2012-09-27, 17:31   #11
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Here's my GTX 480. I didn't optimize GPUSievePrimes, but instead let it just use the mmff-0.25 defaults.

Code:
        ----------------------------------------------------------------------------------------------------
	|   28   |   32   |   36   |   40   |   44   |   48   |   54   |   60   |   80   |  100   |  150   |
------------------------------------------------------------------------------------------------------------
GTX 480 |1866 M/s|1812 M/s|1634 M/s|1010 M/s| 920 M/s| 840 M/s| 747 M/s| 651 M/s| 358 M/s| 304 M/s| 138 M/s|
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