Perpetual benchmark thread... - Page 10

henryzz · 2008-12-30, 11:06

how do you get it to do that huge benchmark

patrik · 2008-12-30, 11:42

I didn't try it myself with the v25 client, but I guess you do it like this:

Quote:

Originally Posted by undoc.txt

The benchmarking code by default only times a subset of the large FFT sizes.
In prime.txt, set
FullBench=1
to have the benchmarking code time all of the large FFT sizes.

starrynte · 2008-12-30, 16:56

correct

jon_jtech · 2009-01-01, 17:54

Code:

[Thu Jan 01 11:23:19 2009]
Compare your results to other computers at http://www.mersenne.org/report_benchmarks
Intel(R) Pentium(R) Dual  CPU  E2180  @ 2.00GHz
CPU speed: 3000.03 MHz, 2 cores
CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2
L1 cache size: 32 KB
L2 cache size: 1 MB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 256
Prime95 64-bit version 25.8, RdtscTiming=1
Best time for 4K FFT length: 0.044 ms.
Best time for 5K FFT length: 0.065 ms.
Best time for 6K FFT length: 0.076 ms.
Best time for 7K FFT length: 0.093 ms.
Best time for 8K FFT length: 0.096 ms.
Best time for 10K FFT length: 0.135 ms.
Best time for 12K FFT length: 0.164 ms.
Best time for 14K FFT length: 0.197 ms.
Best time for 16K FFT length: 0.206 ms.
Best time for 20K FFT length: 0.279 ms.
Best time for 24K FFT length: 0.340 ms.
Best time for 28K FFT length: 0.419 ms.
Best time for 32K FFT length: 0.437 ms.
Best time for 40K FFT length: 0.571 ms.
Best time for 48K FFT length: 0.695 ms.
Best time for 56K FFT length: 0.851 ms.
Best time for 64K FFT length: 0.910 ms.
Best time for 80K FFT length: 1.286 ms.
Best time for 96K FFT length: 1.577 ms.
Best time for 112K FFT length: 1.904 ms.
Best time for 128K FFT length: 2.061 ms.
Best time for 160K FFT length: 2.546 ms.
Best time for 192K FFT length: 3.201 ms.
Best time for 224K FFT length: 3.857 ms.
Best time for 256K FFT length: 4.261 ms.
Best time for 320K FFT length: 5.476 ms.
Best time for 384K FFT length: 6.726 ms.
Best time for 448K FFT length: 8.026 ms.
Best time for 512K FFT length: 8.867 ms.
Best time for 640K FFT length: 11.819 ms.
Best time for 768K FFT length: 14.555 ms.
Best time for 896K FFT length: 17.293 ms.
Best time for 1024K FFT length: 20.157 ms.
Best time for 1280K FFT length: 24.219 ms.
Best time for 1536K FFT length: 29.683 ms.
Best time for 1792K FFT length: 35.379 ms.
Best time for 2048K FFT length: 39.361 ms.
Best time for 2560K FFT length: 52.097 ms.
Best time for 3072K FFT length: 64.104 ms.
Best time for 3584K FFT length: 76.723 ms.
Best time for 4096K FFT length: 86.342 ms.
Best time for 5120K FFT length: 111.757 ms.
Best time for 6144K FFT length: 137.566 ms.
Best time for 7168K FFT length: 167.985 ms.
Best time for 8192K FFT length: 185.773 ms.
Best time for 10240K FFT length: 240.579 ms.
Best time for 12288K FFT length: 298.871 ms.
Best time for 14336K FFT length: 363.477 ms.
Best time for 16384K FFT length: 410.165 ms.
Best time for 20480K FFT length: 579.829 ms.
Best time for 24576K FFT length: 718.615 ms.
Best time for 28672K FFT length: 884.232 ms.
Best time for 32768K FFT length: 1004.593 ms.
Timing FFTs using 2 threads.
Best time for 4K FFT length: 0.044 ms.
Best time for 5K FFT length: 0.065 ms.
Best time for 6K FFT length: 0.077 ms.
Best time for 7K FFT length: 0.093 ms.
Best time for 8K FFT length: 0.096 ms.
Best time for 10K FFT length: 0.134 ms.
Best time for 12K FFT length: 0.139 ms.
Best time for 14K FFT length: 0.129 ms.
Best time for 16K FFT length: 0.170 ms.
Best time for 20K FFT length: 0.171 ms.
Best time for 24K FFT length: 0.206 ms.
Best time for 28K FFT length: 0.246 ms.
Best time for 32K FFT length: 0.259 ms.
Best time for 40K FFT length: 1.030 ms.
Best time for 48K FFT length: 1.027 ms.
Best time for 56K FFT length: 1.089 ms.
Best time for 64K FFT length: 1.133 ms.
Best time for 80K FFT length: 1.111 ms.
Best time for 96K FFT length: 0.983 ms.
Best time for 112K FFT length: 1.137 ms.
Best time for 128K FFT length: 1.246 ms.
Best time for 160K FFT length: 1.504 ms.
Best time for 192K FFT length: 1.915 ms.
Best time for 224K FFT length: 2.291 ms.
Best time for 256K FFT length: 2.644 ms.
Best time for 320K FFT length: 3.281 ms.
Best time for 384K FFT length: 3.977 ms.
Best time for 448K FFT length: 4.723 ms.
Best time for 512K FFT length: 5.461 ms.
Best time for 640K FFT length: 7.055 ms.
Best time for 768K FFT length: 8.610 ms.
Best time for 896K FFT length: 10.028 ms.
Best time for 1024K FFT length: 11.862 ms.
Best time for 1280K FFT length: 14.170 ms.
Best time for 1536K FFT length: 16.934 ms.
Best time for 1792K FFT length: 20.513 ms.
Best time for 2048K FFT length: 22.899 ms.
Best time for 2560K FFT length: 29.250 ms.
Best time for 3072K FFT length: 37.551 ms.
Best time for 3584K FFT length: 49.926 ms.
Best time for 4096K FFT length: 52.799 ms.
Best time for 5120K FFT length: 82.134 ms.
Best time for 6144K FFT length: 83.787 ms.
Best time for 7168K FFT length: 107.766 ms.
Best time for 8192K FFT length: 124.614 ms.
Best time for 10240K FFT length: 184.584 ms.
Best time for 12288K FFT length: 184.116 ms.
Best time for 14336K FFT length: 238.359 ms.
Best time for 16384K FFT length: 283.345 ms.
Best time for 20480K FFT length: 459.663 ms.
Best time for 24576K FFT length: 465.853 ms.
Best time for 28672K FFT length: 672.147 ms.
Best time for 32768K FFT length: 809.754 ms.
Best time for 58 bit trial factors: 2.976 ms.
Best time for 59 bit trial factors: 2.999 ms.
Best time for 60 bit trial factors: 2.957 ms.
Best time for 61 bit trial factors: 3.366 ms.
Best time for 62 bit trial factors: 3.477 ms.
Best time for 63 bit trial factors: 4.100 ms.
Best time for 64 bit trial factors: 5.006 ms.
Best time for 65 bit trial factors: 5.282 ms.
Best time for 66 bit trial factors: 5.894 ms.
Best time for 67 bit trial factors: 5.816 ms.

Note: This was run on an MSI P7N SLI motherboard with an Intel stock HSF from a Pentium D 915 and the CPU temp never went about 68C during 8 hours of stress testing. I thought that the results were very good considering the CPU and wanted to share them so I registered here just to post them.

henryzz · 2009-01-03, 18:45

pretty rubbish with two threads
i though all dual cores scaled better than than

James Heinrich · 2009-01-03, 20:30

Quote:

Originally Posted by henryzz

pretty rubbish with two threads
i though all dual cores scaled better than than

If you look at all the numbers, across most of the normally-used FFT sizes you'll see that 2-thread version runs at about 170% of the speed of the 1-thread version. The very-small FFT sizes (4K-10K) have zero performance change in 2-thread version. 40K-80K FFTs actually perform significantly worse in 2-threaded than single-threaded. But this isn't much to worry about... from 96K onwards it's pretty consistent, and 96K is tiny (used for M1648000 to M1966000, by default). See attachment for graph.

henryzz · 2009-01-03, 20:55

Quote:

Originally Posted by James Heinrich

If you look at all the numbers, across most of the normally-used FFT sizes you'll see that 2-thread version runs at about 170% of the speed of the 1-thread version. The very-small FFT sizes (4K-10K) have zero performance change in 2-thread version. 40K-80K FFTs actually perform significantly worse in 2-threaded than single-threaded. But this isn't much to worry about... from 96K onwards it's pretty consistent, and 96K is tiny (used for M1648000 to M1966000, by default). See attachment for graph.

sorry i looked first at the lower end and then the upper end and thought that the upper end should be better than 120-130% of one core
in the middle it gets better

the core 2 architecture does it better though
One core: Best time for 32768K FFT length: 812.106 ms.
Two cores: Best time for 32768K FFT length: 442.065 ms.
Three cores: Best time for 32768K FFT length: 381.942 ms.
Four cores: Best time for 32768K FFT length: 326.699 ms.

Code:

Compare your results to other computers at http://www.mersenne.org/report_benchmarks
Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz
CPU speed: 3005.39 MHz, 4 cores
CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2
L1 cache size: 32 KB
L2 cache size: 4 MB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 256
Prime95 32-bit version 25.8, RdtscTiming=1
Best time for 4K FFT length: 0.043 ms.
Best time for 5K FFT length: 0.064 ms.
Best time for 6K FFT length: 0.076 ms.
Best time for 7K FFT length: 0.092 ms.
Best time for 8K FFT length: 0.095 ms.
Best time for 10K FFT length: 0.133 ms.
Best time for 12K FFT length: 0.163 ms.
Best time for 14K FFT length: 0.197 ms.
Best time for 16K FFT length: 0.207 ms.
Best time for 20K FFT length: 0.279 ms.
Best time for 24K FFT length: 0.340 ms.
Best time for 28K FFT length: 0.421 ms.
Best time for 32K FFT length: 0.441 ms.
Best time for 40K FFT length: 0.575 ms.
Best time for 48K FFT length: 0.697 ms.
Best time for 56K FFT length: 0.853 ms.
Best time for 64K FFT length: 0.910 ms.
Best time for 80K FFT length: 1.282 ms.
Best time for 96K FFT length: 1.564 ms.
Best time for 112K FFT length: 1.885 ms.
Best time for 128K FFT length: 2.001 ms.
Best time for 160K FFT length: 2.460 ms.
Best time for 192K FFT length: 3.022 ms.
Best time for 224K FFT length: 3.614 ms.
Best time for 256K FFT length: 4.001 ms.
Best time for 320K FFT length: 5.123 ms.
Best time for 384K FFT length: 6.303 ms.
Best time for 448K FFT length: 7.595 ms.
Best time for 512K FFT length: 8.456 ms.
Best time for 640K FFT length: 11.293 ms.
Best time for 768K FFT length: 13.987 ms.
Best time for 896K FFT length: 16.747 ms.
Best time for 1024K FFT length: 19.003 ms.
Best time for 1280K FFT length: 23.776 ms.
Best time for 1536K FFT length: 28.999 ms.
Best time for 1792K FFT length: 34.539 ms.
Best time for 2048K FFT length: 38.345 ms.
Best time for 2560K FFT length: 50.701 ms.
Best time for 3072K FFT length: 61.676 ms.
Best time for 3584K FFT length: 73.614 ms.
Best time for 4096K FFT length: 82.409 ms.
Best time for 5120K FFT length: 105.837 ms.
Best time for 6144K FFT length: 128.228 ms.
Best time for 7168K FFT length: 155.753 ms.
Best time for 8192K FFT length: 170.559 ms.
Best time for 10240K FFT length: 226.718 ms.
Best time for 12288K FFT length: 274.480 ms.
Best time for 14336K FFT length: 332.630 ms.
Best time for 16384K FFT length: 365.440 ms.
Best time for 20480K FFT length: 505.670 ms.
Best time for 24576K FFT length: 617.289 ms.
Best time for 28672K FFT length: 739.000 ms.
Best time for 32768K FFT length: 812.106 ms.
Timing FFTs using 2 threads.
Best time for 4K FFT length: 0.043 ms.
Best time for 5K FFT length: 0.064 ms.
Best time for 6K FFT length: 0.076 ms.
Best time for 7K FFT length: 0.092 ms.
Best time for 8K FFT length: 0.095 ms.
Best time for 10K FFT length: 0.118 ms.
Best time for 12K FFT length: 0.114 ms.
Best time for 14K FFT length: 0.127 ms.
Best time for 16K FFT length: 0.138 ms.
Best time for 20K FFT length: 0.170 ms.
Best time for 24K FFT length: 0.200 ms.
Best time for 28K FFT length: 0.242 ms.
Best time for 32K FFT length: 0.254 ms.
Best time for 40K FFT length: 0.734 ms.
Best time for 48K FFT length: 0.760 ms.
Best time for 56K FFT length: 0.838 ms.
Best time for 64K FFT length: 0.875 ms.
Best time for 80K FFT length: 0.926 ms.
Best time for 96K FFT length: 0.905 ms.
Best time for 112K FFT length: 1.060 ms.
Best time for 128K FFT length: 1.134 ms.
Best time for 160K FFT length: 1.348 ms.
Best time for 192K FFT length: 1.595 ms.
Best time for 224K FFT length: 1.895 ms.
Best time for 256K FFT length: 2.104 ms.
Best time for 320K FFT length: 2.681 ms.
Best time for 384K FFT length: 3.299 ms.
Best time for 448K FFT length: 3.968 ms.
Best time for 512K FFT length: 4.442 ms.
Best time for 640K FFT length: 6.102 ms.
Best time for 768K FFT length: 7.536 ms.
Best time for 896K FFT length: 8.909 ms.
Best time for 1024K FFT length: 10.413 ms.
Best time for 1280K FFT length: 12.668 ms.
Best time for 1536K FFT length: 15.483 ms.
Best time for 1792K FFT length: 18.498 ms.
Best time for 2048K FFT length: 20.757 ms.
Best time for 2560K FFT length: 27.268 ms.
Best time for 3072K FFT length: 33.267 ms.
Best time for 3584K FFT length: 40.072 ms.
Best time for 4096K FFT length: 44.816 ms.
Best time for 5120K FFT length: 57.447 ms.
Best time for 6144K FFT length: 69.971 ms.
Best time for 7168K FFT length: 85.222 ms.
Best time for 8192K FFT length: 95.668 ms.
Best time for 10240K FFT length: 121.431 ms.
[Wed Dec 31 14:21:43 2008]
Best time for 12288K FFT length: 149.783 ms.
Best time for 14336K FFT length: 181.500 ms.
Best time for 16384K FFT length: 200.955 ms.
Best time for 20480K FFT length: 269.814 ms.
Best time for 24576K FFT length: 333.306 ms.
Best time for 28672K FFT length: 402.629 ms.
Best time for 32768K FFT length: 442.065 ms.
Timing FFTs using 3 threads.
Best time for 4K FFT length: 0.043 ms.
Best time for 5K FFT length: 0.064 ms.
Best time for 6K FFT length: 0.076 ms.
Best time for 7K FFT length: 0.092 ms.
Best time for 8K FFT length: 0.095 ms.
Best time for 10K FFT length: 0.153 ms.
Best time for 12K FFT length: 0.178 ms.
Best time for 14K FFT length: 0.184 ms.
Best time for 16K FFT length: 0.204 ms.
Best time for 20K FFT length: 0.241 ms.
Best time for 24K FFT length: 0.270 ms.
Best time for 28K FFT length: 0.304 ms.
Best time for 32K FFT length: 0.340 ms.
Best time for 40K FFT length: 0.917 ms.
Best time for 48K FFT length: 0.947 ms.
Best time for 56K FFT length: 1.055 ms.
Best time for 64K FFT length: 1.080 ms.
Best time for 80K FFT length: 1.248 ms.
Best time for 96K FFT length: 1.376 ms.
Best time for 112K FFT length: 1.538 ms.
Best time for 128K FFT length: 1.700 ms.
Best time for 160K FFT length: 1.746 ms.
Best time for 192K FFT length: 1.526 ms.
Best time for 224K FFT length: 1.732 ms.
Best time for 256K FFT length: 1.967 ms.
Best time for 320K FFT length: 2.371 ms.
Best time for 384K FFT length: 2.880 ms.
Best time for 448K FFT length: 3.501 ms.
Best time for 512K FFT length: 3.924 ms.
Best time for 640K FFT length: 7.960 ms.
Best time for 768K FFT length: 8.996 ms.
Best time for 896K FFT length: 10.254 ms.
Best time for 1024K FFT length: 15.080 ms.
Best time for 1280K FFT length: 11.106 ms.
Best time for 1536K FFT length: 13.356 ms.
Best time for 1792K FFT length: 15.397 ms.
Best time for 2048K FFT length: 17.938 ms.
Best time for 2560K FFT length: 23.359 ms.
Best time for 3072K FFT length: 28.905 ms.
Best time for 3584K FFT length: 33.949 ms.
Best time for 4096K FFT length: 38.708 ms.
Best time for 5120K FFT length: 48.092 ms.
Best time for 6144K FFT length: 58.344 ms.
Best time for 7168K FFT length: 72.284 ms.
Best time for 8192K FFT length: 79.083 ms.
Best time for 10240K FFT length: 102.562 ms.
Best time for 12288K FFT length: 122.527 ms.
Best time for 14336K FFT length: 151.461 ms.
Best time for 16384K FFT length: 167.008 ms.
Best time for 20480K FFT length: 229.974 ms.
Best time for 24576K FFT length: 283.547 ms.
Best time for 28672K FFT length: 338.915 ms.
Best time for 32768K FFT length: 381.942 ms.
Timing FFTs using 4 threads.
Best time for 4K FFT length: 0.043 ms.
Best time for 5K FFT length: 0.064 ms.
Best time for 6K FFT length: 0.076 ms.
Best time for 7K FFT length: 0.092 ms.
Best time for 8K FFT length: 0.095 ms.
Best time for 10K FFT length: 0.146 ms.
Best time for 12K FFT length: 0.161 ms.
Best time for 14K FFT length: 0.170 ms.
Best time for 16K FFT length: 0.188 ms.
Best time for 20K FFT length: 0.215 ms.
Best time for 24K FFT length: 0.246 ms.
Best time for 28K FFT length: 0.270 ms.
Best time for 32K FFT length: 0.294 ms.
Best time for 40K FFT length: 0.865 ms.
Best time for 48K FFT length: 0.935 ms.
Best time for 56K FFT length: 0.943 ms.
Best time for 64K FFT length: 0.990 ms.
Best time for 80K FFT length: 1.122 ms.
Best time for 96K FFT length: 1.237 ms.
Best time for 112K FFT length: 1.395 ms.
Best time for 128K FFT length: 1.476 ms.
Best time for 160K FFT length: 1.567 ms.
Best time for 192K FFT length: 1.405 ms.
Best time for 224K FFT length: 1.596 ms.
Best time for 256K FFT length: 1.792 ms.
Best time for 320K FFT length: 2.157 ms.
Best time for 384K FFT length: 2.524 ms.
Best time for 448K FFT length: 2.955 ms.
Best time for 512K FFT length: 3.412 ms.
Best time for 640K FFT length: 7.289 ms.
Best time for 768K FFT length: 8.117 ms.
Best time for 896K FFT length: 9.332 ms.
Best time for 1024K FFT length: 14.240 ms.
Best time for 1280K FFT length: 9.966 ms.
Best time for 1536K FFT length: 11.693 ms.
Best time for 1792K FFT length: 13.406 ms.
[Wed Dec 31 14:26:44 2008]
Best time for 2048K FFT length: 15.890 ms.
Best time for 2560K FFT length: 19.637 ms.
Best time for 3072K FFT length: 25.388 ms.
Best time for 3584K FFT length: 28.973 ms.
Best time for 4096K FFT length: 33.721 ms.
Best time for 5120K FFT length: 41.201 ms.
Best time for 6144K FFT length: 50.045 ms.
Best time for 7168K FFT length: 61.223 ms.
Best time for 8192K FFT length: 68.953 ms.
Best time for 10240K FFT length: 85.743 ms.
Best time for 12288K FFT length: 103.263 ms.
Best time for 14336K FFT length: 124.100 ms.
Best time for 16384K FFT length: 143.934 ms.
Best time for 20480K FFT length: 192.120 ms.
Best time for 24576K FFT length: 235.059 ms.
Best time for 28672K FFT length: 282.375 ms.
Best time for 32768K FFT length: 326.699 ms.
Best time for 58 bit trial factors: 3.597 ms.
Best time for 59 bit trial factors: 3.580 ms.
Best time for 60 bit trial factors: 3.583 ms.
Best time for 61 bit trial factors: 3.535 ms.
Best time for 62 bit trial factors: 3.558 ms.
Best time for 63 bit trial factors: 5.959 ms.
Best time for 64 bit trial factors: 5.949 ms.
Best time for 65 bit trial factors: 5.533 ms.
Best time for 66 bit trial factors: 5.490 ms.
Best time for 67 bit trial factors: 5.526 ms.

thinking about it memory bottleneck might be his problem as with that age cpu i would be surprised if he has fast DDR2 memory
i am used to looking at the normal benchmark which is actually a much better comparison of cpus

James Heinrich · 2009-01-03, 21:25

Quote:

Originally Posted by henryzz

the core 2 architecture does it better though
thinking about it memory bottleneck might be his problem as with that age cpu i would be surprised if he has fast DDR2 memory

The E2180 is Core2 architecture too, same generation as the Q6600, just less cache.

henryzz · 2009-01-03, 21:32

Quote:

Originally Posted by James Heinrich

The E2180 is Core2 architecture too, same generation as the Q6600, just less cache.

again i missed something
Intel(R) Pentium(R) Dual CPU misled me
why doesnt it say core 2
is it a misrecognized cpu

James Heinrich · 2009-01-04, 01:01

Quote:

Originally Posted by henryzz

Intel(R) Pentium(R) Dual CPU misled me
why doesnt it say core 2

Because it's a Pentium Dual-Core.
Intel has several brand names for different target budget/performance ranges: Celeron < Pentium < Core.

henryzz · 2009-01-04, 19:56

Quote:

Originally Posted by James Heinrich

Because it's a Pentium Dual-Core.
Intel has several brand names for different target budget/performance ranges: Celeron < Pentium < Core.

ok that link makes me understand

jon_jtech · 2009-01-07, 02:21

Quote:

Originally Posted by henryzz

again i missed something
Intel(R) Pentium(R) Dual CPU misled me
why doesnt it say core 2
is it a misrecognized cpu

Your's says that your CPU only has 4MB L2 Cache and not 2x 4MB or 8MB. But we know the truth. :)
This CPU is about the same age as your Q6600 and I benchmarked it with DDR2-800 RAM running at 800MHz. I will try pushing the RAM more later but that was not what I was benchmarking this time.

I just wanted to share with everyone the results of this CPU overclocked so everyone could see that a lower-end CPU with OK cooling still can get good results. When compared to other similarly clocked CPUs it did better than I expected but still the lower L2 hurts it. This is CPU has the potential to be a decent economy gamers CPU when overclocked.

T.Rex · 2009-01-07, 18:52

Quote:

Originally Posted by Xyzzy

The boxes run significantly cooler compared to our older 65nm Q6600 C2Q. We think the 9550 is a 65nm CPU with a 95W TDP. We verified that the CPU has the fixed "B3" stepping (?) to eliminate the "TLB" problem.

Hi,
I plan to buy a Phenom Quad 9950 (2.6 GHz - TDP 140W) or a 9850 (2.5 GHz - TDP 95W), with 2 GB G-Skill memory ((2x1024) DDR2 PC8500 (1066Mhz) - 5-5-5-15) and with a GigaByte mother-board.
The reseller says that I need a thermical dissiper (Noctua - NH-C12P) for the 9950. Do you think it is necessary ? Or maybe I should stay with the 9850 which is only 10% slower than the 9950 for Prime95 I think.
There is a new Phenom Quad 9950 2.6 GHz with only 125W. But it is not yet widely available....

And what is this TLB problem ?

Thanks,
Tony

ET_ · 2009-01-07, 19:53

Quote:

Originally Posted by T.Rex

Hi,
I plan to buy a Phenom Quad 9950 (2.6 GHz - TDP 140W) or a 9850 (2.5 GHz - TDP 95W), with 2 GB G-Skill memory ((2x1024) DDR2 PC8500 (1066Mhz) - 5-5-5-15) and with a GigaByte mother-board.
The reseller says that I need a thermical dissiper (Noctua - NH-C12P) for the 9950. Do you think it is necessary ? Or maybe I should stay with the 9850 which is only 10% slower than the 9950 for Prime95 I think.
There is a new Phenom Quad 9950 2.6 GHz with only 125W. But it is not yet widely available....

And what is this TLB problem ?

Thanks,
Tony

IIRC, the TLB problem has been solved by AMD with the stepping B3 release of Phenom. Processors numbered xx5x are not affected by that bug.

I also heard that on next January 9th Phenom II will be released, up to 3 GHz with 45nm technology. Voices tell that Phenom II will be perfectly suited for overclocking, AMD folks pushed it up to 6 GHz with a liquid nitrogen cooler (-195 degrees Celsius).

Luigi, an AMD fan.

metallurge · 2009-01-07, 21:31

Quote:

Originally Posted by T.Rex

Hi,
I plan to buy a Phenom Quad 9950 (2.6 GHz - TDP 140W) or a 9850 (2.5 GHz - TDP 95W), with 2 GB G-Skill memory ((2x1024) DDR2 PC8500 (1066Mhz) - 5-5-5-15) and with a GigaByte mother-board.
The reseller says that I need a thermical dissiper (Noctua - NH-C12P) for the 9950. Do you think it is necessary ? Or maybe I should stay with the 9850 which is only 10% slower than the 9950 for Prime95 I think.
There is a new Phenom Quad 9950 2.6 GHz with only 125W. But it is not yet widely available....

And what is this TLB problem ?

Thanks,
Tony

Very similar to a couple systems I am currently building. The 125W 9950 is very available here, in fact I even just picked one up as an "open box" item at NewEgg for $132 delivered. Regular price for the 9950 125W is about $169. Nothing else makes sense, IMHO, in this price range. Not the 9850, for sure.

Be aware also that Phenom II 940 will be available literally any day now. 3 Ghz, larger cache, improved core, lower power (45 nm vs 60 nm). Approximately $300.

In either case, you will need a good (125-140W capable; heatpipe) CPU cooler (I like the Scythe Ninja+ rev B myself), a well-ventilated case (I like the Antec 300), and probably heatsinks for the motherboard mosfets in the power supply section, if they are not included on your motherboard already. Also, look for solid capacitors in the power supply section. Gigabyte has many choices here, and I have used them. My latest builds are with Biostar 790GX boards.

The TLB problem only applies to 9x00 Phenoms, not 9x50 Phenoms or 9x0 Phenom IIs. TLB Phenoms are to be avoided. Good luck.

James Heinrich · 2009-01-08, 01:27

Quote:

Originally Posted by metallurge

Be aware also that Phenom II 940 will be available literally any day now.

They're actually around, your local computer store very likely has them in stock (where I work has had them since 24-Dec), but AMD has strictly told retailers they can't advertise the Phenom II until release date. But I'd suggest waiting a month and skipping the AM2+ PhenomII's and waiting for the AM3 version -- you then get the choice of using AM2+ or AM3 motherboard, and DDR2 or DDR3 RAM. With the first-release AM2+ versions you're stuck with AM2+ boards and DDR2 RAM (not really a bad thing right now, but things will look different in a year or two and you may regret having the "crippled" version).

cheesehead · 2009-01-08, 08:00

Quote:

Originally Posted by T.Rex

And what is this TLB problem ?

AMD's formal designation is "Erratum 298".

From http://techreport.com/discussions.x/13742

Quote:

Erratum 298 will be described as follows: "The processor operation to change the accessed or dirty bits of a page translation table entry in the L2 from 0b to 1b may not be atomic. A small window of time exists where other cached operations may cause the stale page translation table entry to be installed in the L3 before the modified copy is returned to the L2. In addition, if a probe for this cache line occurs during this window of time, the processor may not set the accessed or dirty bit and may corrupt data for an unrelated cached operation. The system may experience a machine check event reporting an L3 protocol error has occurred. In this case, the MC4 status register (MSR 0000_0410) will be equal to B2000000_000B0C0F or BA000000_000B0C0F. The MC4 address register (MSR 0000_0412) will be equal to 26h."

metallurge · 2009-01-08, 17:59

(Regarding Phenom II's)

Quote:

Originally Posted by James Heinrich

They're actually around, your local computer store very likely has them in stock (where I work has had them since 24-Dec), but AMD has strictly told retailers they can't advertise the Phenom II until release date. But I'd suggest waiting a month and skipping the AM2+ PhenomII's and waiting for the AM3 version -- you then get the choice of using AM2+ or AM3 motherboard, and DDR2 or DDR3 RAM. With the first-release AM2+ versions you're stuck with AM2+ boards and DDR2 RAM (not really a bad thing right now, but things will look different in a year or two and you may regret having the "crippled" version).

First, to let people know, Phenom IIs are now available. I picked a 940 up from newegg this morning for $275.

James, you are right to let people know about the AM3 Phenom II DDR3-capable versions that are coming in a few months (April for the 3 Ghz 945). For me, I intend to populate with not less than 8 Gb of RAM, which would be unaffordably expensive in DDR3 anytime soon. 1066-DDR2 is where the sweet spot currently is price-performance-wise. With the Phenom II's larger cache size, it matters less anyway.

T.Rex · 2009-01-08, 20:31

Quote:

Originally Posted by metallurge

(Regarding Phenom II's)

First, to let people know, Phenom IIs are now available. I picked a 940 up from newegg this morning for $275.

NUTS ! In France, I can see it for 275 Euros !!!!! Instead of the expected 200 Euros ! That's NOT fair !
Tony

metallurge · 2009-01-08, 23:35

Quote:

Originally Posted by T.Rex

NUTS ! In France, I can see it for 275 Euros !!!!! Instead of the expected 200 Euros ! That's NOT fair !
Tony

You know, you might be able to arrange to import one. Shipping would be reasonable. For that much price difference, I might think about it. Know anyone in the States who could help?

James Heinrich · 2009-01-09, 01:54

Quote:

Originally Posted by T.Rex

NUTS ! In France, I can see it for 275 Euros !!!!!

In Canada I see it for C$370 (~225€, US$312), so halfway between US and France.

Aapje · 2009-01-10, 23:06

Quote:

Originally Posted by T.Rex

NUTS ! In France, I can see it for 275 Euros !!!!! Instead of the expected 200 Euros ! That's NOT fair !

The Newegg price is without sales tax (which USians would technically have to pay). So adding 20% sales tax (the french rate) would bring you up to 240 Euros. That is not that far off and might be explained by higher shipping costs.

James Heinrich · 2009-01-11, 01:53

Quote:

Originally Posted by Aapje

The Newegg price is without sales tax

The Canadian price I quoted is also pre-tax, once you add in 13% sales tax (variable by province) would be ~262€, so pretty close.

T.Rex · 2009-01-11, 09:11

OK, thanks for the information about taxes. And, yes, the 275 € include taxes.
So the difference is now only 10-20 %. Shipping, probably.
Thanks again.
Tony

jon_jtech · 2009-01-13, 01:44

Code:

[Mon Jan 12 19:27:07 2009]
Compare your results to other computers at http://www.mersenne.org/report_benchmarks
Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz
CPU speed: 4050.35 MHz, 2 cores
CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2, SSE4
L1 cache size: 32 KB
L2 cache size: 6 MB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 256
Prime95 64-bit version 25.8, RdtscTiming=1
Best time for 4K FFT length: 0.032 ms.
Best time for 5K FFT length: 0.047 ms.
Best time for 6K FFT length: 0.056 ms.
Best time for 7K FFT length: 0.068 ms.
Best time for 8K FFT length: 0.071 ms.
Best time for 10K FFT length: 0.099 ms.
Best time for 12K FFT length: 0.120 ms.
Best time for 14K FFT length: 0.145 ms.
Best time for 16K FFT length: 0.152 ms.
Best time for 20K FFT length: 0.206 ms.
Best time for 24K FFT length: 0.252 ms.
Best time for 28K FFT length: 0.310 ms.
Best time for 32K FFT length: 0.323 ms.
Best time for 40K FFT length: 0.422 ms.
Best time for 48K FFT length: 0.514 ms.
Best time for 56K FFT length: 0.629 ms.
Best time for 64K FFT length: 0.671 ms.
Best time for 80K FFT length: 0.948 ms.
Best time for 96K FFT length: 1.153 ms.
Best time for 112K FFT length: 1.389 ms.
Best time for 128K FFT length: 1.481 ms.
Best time for 160K FFT length: 1.806 ms.
Best time for 192K FFT length: 2.236 ms.
Best time for 224K FFT length: 2.667 ms.
Best time for 256K FFT length: 2.958 ms.
Best time for 320K FFT length: 3.749 ms.
Best time for 384K FFT length: 4.625 ms.
Best time for 448K FFT length: 5.512 ms.
Best time for 512K FFT length: 6.113 ms.
Best time for 640K FFT length: 8.017 ms.
Best time for 768K FFT length: 10.150 ms.
Best time for 896K FFT length: 12.343 ms.
Best time for 1024K FFT length: 14.226 ms.
Best time for 1280K FFT length: 17.697 ms.
Best time for 1536K FFT length: 21.774 ms.
Best time for 1792K FFT length: 25.950 ms.
Best time for 2048K FFT length: 28.938 ms.
Best time for 2560K FFT length: 37.955 ms.
Best time for 3072K FFT length: 46.581 ms.
Best time for 3584K FFT length: 55.470 ms.
Best time for 4096K FFT length: 62.073 ms.
Best time for 5120K FFT length: 78.901 ms.
Best time for 6144K FFT length: 95.362 ms.
Best time for 7168K FFT length: 115.543 ms.
Best time for 8192K FFT length: 126.468 ms.
Best time for 10240K FFT length: 168.583 ms.
Best time for 12288K FFT length: 203.554 ms.
Best time for 14336K FFT length: 246.152 ms.
Best time for 16384K FFT length: 270.126 ms.
Best time for 20480K FFT length: 376.375 ms.
Best time for 24576K FFT length: 458.414 ms.
Best time for 28672K FFT length: 546.438 ms.
Best time for 32768K FFT length: 596.896 ms.
Timing FFTs using 2 threads.
Best time for 4K FFT length: 0.032 ms.
Best time for 5K FFT length: 0.047 ms.
Best time for 6K FFT length: 0.056 ms.
Best time for 7K FFT length: 0.068 ms.
Best time for 8K FFT length: 0.070 ms.
Best time for 10K FFT length: 0.068 ms.
Best time for 12K FFT length: 0.080 ms.
Best time for 14K FFT length: 0.091 ms.
Best time for 16K FFT length: 0.097 ms.
Best time for 20K FFT length: 0.122 ms.
Best time for 24K FFT length: 0.146 ms.
Best time for 28K FFT length: 0.176 ms.
Best time for 32K FFT length: 0.185 ms.
Best time for 40K FFT length: 0.443 ms.
Best time for 48K FFT length: 0.452 ms.
Best time for 56K FFT length: 0.524 ms.
Best time for 64K FFT length: 0.542 ms.
Best time for 80K FFT length: 0.548 ms.
Best time for 96K FFT length: 0.655 ms.
Best time for 112K FFT length: 0.774 ms.
Best time for 128K FFT length: 0.825 ms.
Best time for 160K FFT length: 0.981 ms.
Best time for 192K FFT length: 1.175 ms.
Best time for 224K FFT length: 1.394 ms.
Best time for 256K FFT length: 1.549 ms.
Best time for 320K FFT length: 1.964 ms.
Best time for 384K FFT length: 2.404 ms.
Best time for 448K FFT length: 2.863 ms.
Best time for 512K FFT length: 3.185 ms.
Best time for 640K FFT length: 4.308 ms.
Best time for 768K FFT length: 5.407 ms.
Best time for 896K FFT length: 6.566 ms.
Best time for 1024K FFT length: 7.736 ms.
Best time for 1280K FFT length: 9.581 ms.
Best time for 1536K FFT length: 11.922 ms.
Best time for 1792K FFT length: 14.217 ms.
Best time for 2048K FFT length: 16.192 ms.
Best time for 2560K FFT length: 20.969 ms.
Best time for 3072K FFT length: 25.782 ms.
Best time for 3584K FFT length: 30.428 ms.
Best time for 4096K FFT length: 34.600 ms.
Best time for 5120K FFT length: 43.313 ms.
Best time for 6144K FFT length: 52.656 ms.
Best time for 7168K FFT length: 63.182 ms.
Best time for 8192K FFT length: 70.347 ms.
Best time for 10240K FFT length: 89.865 ms.
Best time for 12288K FFT length: 108.971 ms.
Best time for 14336K FFT length: 131.091 ms.
Best time for 16384K FFT length: 145.132 ms.
Best time for 20480K FFT length: 199.812 ms.
Best time for 24576K FFT length: 243.035 ms.
Best time for 28672K FFT length: 288.927 ms.
Best time for 32768K FFT length: 317.888 ms.
Best time for 58 bit trial factors: 2.158 ms.
Best time for 59 bit trial factors: 2.174 ms.
Best time for 60 bit trial factors: 2.200 ms.
Best time for 61 bit trial factors: 2.386 ms.
Best time for 62 bit trial factors: 2.504 ms.
Best time for 63 bit trial factors: 2.950 ms.
Best time for 64 bit trial factors: 3.700 ms.
Best time for 65 bit trial factors: 3.903 ms.
Best time for 66 bit trial factors: 4.345 ms.
Best time for 67 bit trial factors: 4.310 ms.

Note: This test was run using a Thermalright Ultra 120 eXtreme with a S-Flex 12cm 1600rpm FDB fan. System is air cooled only. Motherboard is an ASUS P5K Deluxe.

2009-03-08, 08:07

Sun Mar 08 03:13:51 2009]
Compare your results to other computers at http://www.mersenne.org/report_benchmarks
Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
CPU speed: 3192.06 MHz, 4 hyperthreaded cores
CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2, SSE4
L1 cache size: 32 KB
L2 cache size: 256 KB, L3 cache size: 8064 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 64-bit version 25.8, RdtscTiming=1
Best time for 768K FFT length: 11.971 ms.
Best time for 896K FFT length: 14.309 ms.
Best time for 1024K FFT length: 16.595 ms.
Best time for 1280K FFT length: 21.564 ms.
Best time for 1536K FFT length: 26.503 ms.
Best time for 1792K FFT length: 31.488 ms.
Best time for 2048K FFT length: 35.179 ms.
Best time for 2560K FFT length: 44.606 ms.
Best time for 3072K FFT length: 54.694 ms.
Best time for 3584K FFT length: 65.207 ms.
Best time for 4096K FFT length: 73.897 ms.
Best time for 5120K FFT length: 93.774 ms.
Best time for 6144K FFT length: 113.237 ms.
Best time for 7168K FFT length: 138.259 ms.
Best time for 8192K FFT length: 152.818 ms.
Timing FFTs using 2 threads on 1 physical CPUs.
Best time for 768K FFT length: 11.187 ms.
Best time for 896K FFT length: 13.438 ms.
Best time for 1024K FFT length: 15.396 ms.
Best time for 1280K FFT length: 19.219 ms.
Best time for 1536K FFT length: 23.365 ms.
Best time for 1792K FFT length: 27.978 ms.
Best time for 2048K FFT length: 31.099 ms.
Best time for 2560K FFT length: 41.037 ms.
Best time for 3072K FFT length: 50.122 ms.
Best time for 3584K FFT length: 60.695 ms.
Best time for 4096K FFT length: 67.337 ms.
Best time for 5120K FFT length: 85.991 ms.
Best time for 6144K FFT length: 103.945 ms.
Best time for 7168K FFT length: 124.827 ms.
Best time for 8192K FFT length: 137.619 ms.
Timing FFTs using 4 threads on 2 physical CPUs.
Best time for 768K FFT length: 9.120 ms.
Best time for 896K FFT length: 9.867 ms.
Best time for 1024K FFT length: 14.683 ms.
Best time for 1280K FFT length: 11.027 ms.
Best time for 1536K FFT length: 13.200 ms.
Best time for 1792K FFT length: 15.385 ms.
Best time for 2048K FFT length: 17.105 ms.
Best time for 2560K FFT length: 21.262 ms.
Best time for 3072K FFT length: 25.887 ms.
Best time for 3584K FFT length: 31.229 ms.
Best time for 4096K FFT length: 34.865 ms.
Best time for 5120K FFT length: 44.391 ms.
Best time for 6144K FFT length: 53.848 ms.
Best time for 7168K FFT length: 64.461 ms.
Best time for 8192K FFT length: 71.829 ms.
Timing FFTs using 6 threads on 3 physical CPUs.
Best time for 768K FFT length: 8.108 ms.
Best time for 896K FFT length: 8.534 ms.
Best time for 1024K FFT length: 13.298 ms.
Best time for 1280K FFT length: 8.936 ms.
Best time for 1536K FFT length: 10.297 ms.
Best time for 1792K FFT length: 11.860 ms.
Best time for 2048K FFT length: 13.200 ms.
Best time for 2560K FFT length: 16.058 ms.
Best time for 3072K FFT length: 19.147 ms.
Best time for 3584K FFT length: 22.206 ms.
Best time for 4096K FFT length: 25.082 ms.
Best time for 5120K FFT length: 31.670 ms.
Best time for 6144K FFT length: 40.111 ms.
Best time for 7168K FFT length: 48.366 ms.
Best time for 8192K FFT length: 55.047 ms.
Timing FFTs using 8 threads on 4 physical CPUs.
Best time for 768K FFT length: 7.677 ms.
Best time for 896K FFT length: 7.934 ms.
Best time for 1024K FFT length: 12.659 ms.
Best time for 1280K FFT length: 8.231 ms.
Best time for 1536K FFT length: 9.536 ms.
Best time for 1792K FFT length: 10.886 ms.
Best time for 2048K FFT length: 12.177 ms.
Best time for 2560K FFT length: 14.712 ms.
Best time for 3072K FFT length: 17.728 ms.
Best time for 3584K FFT length: 20.179 ms.
Best time for 4096K FFT length: 23.002 ms.
Best time for 5120K FFT length: 28.231 ms.
Best time for 6144K FFT length: 36.371 ms.
Best time for 7168K FFT length: 44.458 ms.
Best time for 8192K FFT length: 50.886 ms.
Best time for 58 bit trial factors: 2.310 ms.
Best time for 59 bit trial factors: 2.336 ms.
Best time for 60 bit trial factors: 2.339 ms.
Best time for 61 bit trial factors: 2.576 ms.
Best time for 62 bit trial factors: 2.726 ms.
Best time for 63 bit trial factors: 3.220 ms.
Best time for 64 bit trial factors: 3.981 ms.
Best time for 65 bit trial factors: 4.195 ms.
Best time for 66 bit trial factors: 4.389 ms.
Best time for 67 bit trial factors: 4.357 ms.

S485122 · 2009-04-05, 00:00

It seems some AMD owners are spicing the benchmarks with fake results, for instance :

Phenom 9600 Quad-Core with 0.99 and 1.15 factoring times (the other results are more in 9 second ranges.)

Code:

AMD Athlon 64 3200+ 2210  7.13  7.96  9.90 12.07 14.89 16.80  24.55  30.21  35.81  39.69  2.05
while the other lines are more like
AMD Athlon 64 3200+ 2583 34.53 38.38 48.54 59.48 72.12 80.09 107.96 132.09 163.28 178.01 10.63

The whole benchmark page would need a lot of consolidating work (removing duplicate entries amongst other things...)

Jacob

James Heinrich · 2009-04-27, 01:11

Can anyone with a PhenomII please post a benchmark, please?

sdbardwick · 2009-04-27, 05:35

Quote:

Originally Posted by James Heinrich

Can anyone with a PhenomII please post a benchmark, please?

Phenom 940Blk 3.0GHz (Stock clock, voltages, timings, etc.) on GA-MA78GPM-UD2H with 1066 DDR2 @ 5-5-5-15. Using sideport graphics memory only, Vista Ultimate 64 bit with Aero enabled.

sdbardwick · 2009-04-28, 01:48

I need to do some more investigation regarding the above Phenom II. I have no idea why multithreading scales so badly at lower FFT sizes. It is currently running 1 doublecheck per core quite nicely (27ms/it 1280k FFT on each core).

ckdo · 2009-04-28, 08:11

Medion Akoya MD 97110 (aka P6612) notebook. Didn't fiddle with any BIOS settings yet. Benchmark uses FullBench=1 and AllBench=1.

James Heinrich · 2009-04-28, 11:34

Quote:

Originally Posted by ckdo

Benchmark uses FullBench=1 and AllBench=1.

If you would like your benchmark included on my benchmark or throughput pages, please re-run the benchmark without AllBench set (FullBench is welcome, but my code isn't set up to parse the complex AllBench output)

ckdo · 2009-04-28, 12:39

Quote:

Originally Posted by ckdo

Medion Akoya MD 97110 (aka P6612) notebook. Didn't fiddle with any BIOS settings yet.

This time, without AllBench=1...

Xyzzy · 2009-07-10, 06:36

2.53GHz Apple MacBook Pro (MB991LL/A) with Intel X25-M SSD.

T.Rex · 2009-07-10, 14:54

Glucas -O3 -xSSE4 with 8 threads on 8 cores (no hyper-threading).
Best time for 2304K FFT: 8.26 msec/iter .

msft · 2009-07-16, 06:27

MacLucasFFTW on PS3.
2048k fft sec/iter = 0.084
4096k fft sec/iter = 0.194

moebius · 2009-07-21, 03:17

Quote:

Originally Posted by S485122

It seems some AMD owners are spicing the benchmarks with fake results, for instance :

Code:

AMD Athlon 64 3200+ 2210  7.13  7.96  9.90 12.07 14.89 16.80  24.55  30.21  35.81  39.69  2.05
while the other lines are more like
AMD Athlon 64 3200+ 2583 34.53 38.38 48.54 59.48 72.12 80.09 107.96 132.09 163.28 178.01 10.63

My benchmark for the Socket 939 San Diego processor, Asus AN8-VM
Mainboard,DDR-2 ram-modules in Single Mode, 32 bit-Windows XP
AMD Athlon 64 3700+ 2431 40.76 52.02 63.12 76.83 85.76 112.53 136.69

Maybe some faster Hardware are out there!

Shinzok · 2009-08-14, 11:45

I have a small question, is it suppose to look like this or is this usually not happening.

Benchmark was run with FullBench=1 + AllBench=1 on a

Q9650 @ Stock speed of 3000 MHz.
Windows 7 Ultimate (RTM) x64
4x1024 Corsair DDR2 @ 4-4-4-12 800 MHz. 2.14 volts

Code:

Intel(R) Core(TM)2 Quad CPU    Q9650  @ 3.00GHz
CPU speed: 3000.09 MHz, 4 cores
CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2, SSE4
L1 cache size: 32 KB
L2 cache size: 6 MB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 256
Prime95 64-bit version 25.11, RdtscTiming=1
Best time for 4K FFT length: 0.038 ms.
Best time for 5K FFT length: 0.055 ms.
Best time for 6K FFT length: 0.061 ms.
Best time for 7K FFT length: 0.079 ms.
Best time for 8K FFT length: 0.080 ms.
Best time for 10K FFT length: 0.122 ms.
Best time for 12K FFT length: 0.140 ms.
Best time for 14K FFT length: 0.176 ms.
Best time for 16K FFT length: 0.185 ms.
Best time for 20K FFT length: 0.252 ms.
Best time for 24K FFT length: 0.292 ms.
Best time for 28K FFT length: 0.370 ms.
Best time for 32K FFT length: 0.391 ms.
Best time for 40K FFT length: 0.513 ms.
Best time for 48K FFT length: 0.604 ms.
Best time for 56K FFT length: 0.765 ms.
Best time for 64K FFT length: 0.804 ms.
Best time for 80K FFT length: 1.146 ms.
Best time for 96K FFT length: 1.327 ms.
Best time for 112K FFT length: 1.660 ms.
Best time for 128K FFT length: 1.771 ms.
Best time for 160K FFT length: 2.206 ms.
Best time for 192K FFT length: 2.671 ms.
Best time for 224K FFT length: 3.281 ms.
Best time for 256K FFT length: 3.604 ms.
Best time for 320K FFT length: 4.608 ms.
Best time for 384K FFT length: 5.499 ms.
Best time for 448K FFT length: 6.760 ms.
Best time for 512K FFT length: 7.409 ms.
Best time for 640K FFT length: 9.593 ms.
Best time for 768K FFT length: 11.886 ms.
Best time for 896K FFT length: 15.357 ms.
Best time for 1024K FFT length: 17.829 ms.
Best time for 1280K FFT length: 23.684 ms.
Best time for 1536K FFT length: 29.008 ms.
Best time for 1792K FFT length: 35.708 ms.
Best time for 2048K FFT length: 40.108 ms.
Best time for 2560K FFT length: 52.605 ms.
Best time for 3072K FFT length: 62.156 ms.
Best time for 3584K FFT length: 76.636 ms.
Best time for 4096K FFT length: 85.756 ms.
Best time for 5120K FFT length: 108.884 ms.
Best time for 6144K FFT length: 127.012 ms.
Best time for 7168K FFT length: 154.952 ms.
Best time for 8192K FFT length: 169.785 ms.
Best time for 10240K FFT length: 219.665 ms.
Best time for 12288K FFT length: 255.917 ms.
Best time for 14336K FFT length: 313.237 ms.
Best time for 16384K FFT length: 342.033 ms.
Best time for 20480K FFT length: 499.655 ms.
Best time for 24576K FFT length: 592.448 ms.
Best time for 28672K FFT length: 717.238 ms.
Best time for 32768K FFT length: 794.108 ms.
Timing FFTs using 2 threads.
Best time for 4K FFT length: 0.038 ms.
Best time for 5K FFT length: 0.055 ms.
Best time for 6K FFT length: 0.061 ms.
Best time for 7K FFT length: 0.079 ms.
Best time for 8K FFT length: 0.080 ms.
Best time for 10K FFT length: 0.087 ms.
Best time for 12K FFT length: 0.097 ms.
Best time for 14K FFT length: 0.114 ms.
Best time for 16K FFT length: 0.120 ms.
Best time for 20K FFT length: 0.153 ms.
Best time for 24K FFT length: 0.175 ms.
Best time for 28K FFT length: 0.214 ms.
Best time for 32K FFT length: 0.229 ms.
Best time for 40K FFT length: 0.560 ms.
Best time for 48K FFT length: 0.582 ms.
Best time for 56K FFT length: 0.661 ms.
Best time for 64K FFT length: 0.690 ms.
Best time for 80K FFT length: 0.685 ms.
Best time for 96K FFT length: 0.786 ms.
Best time for 112K FFT length: 0.956 ms.
Best time for 128K FFT length: 1.021 ms.
Best time for 160K FFT length: 1.234 ms.
Best time for 192K FFT length: 1.434 ms.
Best time for 224K FFT length: 1.747 ms.
Best time for 256K FFT length: 1.929 ms.
Best time for 320K FFT length: 2.460 ms.
Best time for 384K FFT length: 2.931 ms.
Best time for 448K FFT length: 3.579 ms.
Best time for 512K FFT length: 3.943 ms.
Best time for 640K FFT length: 5.282 ms.
Best time for 768K FFT length: 6.794 ms.
Best time for 896K FFT length: 9.112 ms.
Best time for 1024K FFT length: 11.336 ms.
Best time for 1280K FFT length: 16.220 ms.
Best time for 1536K FFT length: 20.281 ms.
Best time for 1792K FFT length: 24.588 ms.
Best time for 2048K FFT length: 28.492 ms.
Best time for 2560K FFT length: 37.029 ms.
Best time for 3072K FFT length: 44.779 ms.
Best time for 3584K FFT length: 52.661 ms.
Best time for 4096K FFT length: 60.376 ms.
Best time for 5120K FFT length: 76.160 ms.
Best time for 6144K FFT length: 91.910 ms.
Best time for 7168K FFT length: 108.115 ms.
Best time for 8192K FFT length: 122.895 ms.
Best time for 10240K FFT length: 156.009 ms.
Best time for 12288K FFT length: 185.455 ms.
Best time for 14336K FFT length: 218.730 ms.
Best time for 16384K FFT length: 249.957 ms.
Best time for 20480K FFT length: 309.510 ms.
Best time for 24576K FFT length: 368.779 ms.
Best time for 28672K FFT length: 431.535 ms.
Best time for 32768K FFT length: 498.112 ms.
Timing FFTs using 3 threads.
Best time for 4K FFT length: 0.038 ms.
Best time for 5K FFT length: 0.055 ms.
Best time for 6K FFT length: 0.061 ms.
Best time for 7K FFT length: 0.079 ms.
Best time for 8K FFT length: 0.080 ms.
Best time for 10K FFT length: 0.158 ms.
Best time for 12K FFT length: 0.173 ms.
Best time for 14K FFT length: 0.191 ms.
Best time for 16K FFT length: 0.207 ms.
Best time for 20K FFT length: 0.246 ms.
Best time for 24K FFT length: 0.288 ms.
Best time for 28K FFT length: 0.336 ms.
Best time for 32K FFT length: 0.380 ms.
Best time for 40K FFT length: 0.837 ms.
Best time for 48K FFT length: 0.911 ms.
Best time for 56K FFT length: 0.989 ms.
Best time for 64K FFT length: 1.034 ms.
Best time for 80K FFT length: 1.251 ms.
Best time for 96K FFT length: 1.411 ms.
Best time for 112K FFT length: 1.504 ms.
Best time for 128K FFT length: 1.725 ms.
Best time for 160K FFT length: 1.804 ms.
Best time for 192K FFT length: 1.597 ms.
Best time for 224K FFT length: 1.851 ms.
Best time for 256K FFT length: 2.047 ms.
Best time for 320K FFT length: 2.500 ms.
Best time for 384K FFT length: 2.929 ms.
Best time for 448K FFT length: 3.527 ms.
Best time for 512K FFT length: 4.057 ms.
Best time for 640K FFT length: 8.055 ms.
Best time for 768K FFT length: 9.822 ms.
Best time for 896K FFT length: 11.984 ms.
Best time for 1024K FFT length: 17.667 ms.
Best time for 1280K FFT length: 17.163 ms.
Best time for 1536K FFT length: 22.042 ms.
Best time for 1792K FFT length: 27.139 ms.
Best time for 2048K FFT length: 31.808 ms.
Best time for 2560K FFT length: 41.841 ms.
Best time for 3072K FFT length: 50.510 ms.
Best time for 3584K FFT length: 60.511 ms.
Best time for 4096K FFT length: 69.348 ms.
Best time for 5120K FFT length: 87.050 ms.
Best time for 6144K FFT length: 103.222 ms.
Best time for 7168K FFT length: 123.203 ms.
Best time for 8192K FFT length: 139.015 ms.
Best time for 10240K FFT length: 182.308 ms.
Best time for 12288K FFT length: 216.148 ms.
Best time for 14336K FFT length: 258.419 ms.
Best time for 16384K FFT length: 288.518 ms.
Best time for 20480K FFT length: 375.468 ms.
Best time for 24576K FFT length: 449.556 ms.
Best time for 28672K FFT length: 526.856 ms.
Best time for 32768K FFT length: 606.468 ms.
Timing FFTs using 4 threads.
Best time for 4K FFT length: 0.038 ms.
Best time for 5K FFT length: 0.055 ms.
Best time for 6K FFT length: 0.061 ms.
Best time for 7K FFT length: 0.079 ms.
Best time for 8K FFT length: 0.080 ms.
Best time for 10K FFT length: 0.166 ms.
Best time for 12K FFT length: 0.177 ms.
Best time for 14K FFT length: 0.194 ms.
Best time for 16K FFT length: 0.212 ms.
Best time for 20K FFT length: 0.244 ms.
Best time for 24K FFT length: 0.282 ms.
Best time for 28K FFT length: 0.326 ms.
Best time for 32K FFT length: 0.362 ms.
Best time for 40K FFT length: 0.783 ms.
Best time for 48K FFT length: 0.850 ms.
Best time for 56K FFT length: 0.880 ms.
Best time for 64K FFT length: 0.940 ms.
Best time for 80K FFT length: 1.145 ms.
Best time for 96K FFT length: 1.260 ms.
Best time for 112K FFT length: 1.395 ms.
Best time for 128K FFT length: 1.520 ms.
Best time for 160K FFT length: 1.666 ms.
Best time for 192K FFT length: 1.527 ms.
Best time for 224K FFT length: 1.722 ms.
Best time for 256K FFT length: 1.942 ms.
Best time for 320K FFT length: 2.289 ms.
Best time for 384K FFT length: 2.731 ms.
Best time for 448K FFT length: 3.240 ms.
Best time for 512K FFT length: 3.758 ms.
Best time for 640K FFT length: 7.334 ms.
Best time for 768K FFT length: 8.864 ms.
Best time for 896K FFT length: 10.519 ms.
Best time for 1024K FFT length: 15.633 ms.
Best time for 1280K FFT length: 14.863 ms.
Best time for 1536K FFT length: 19.601 ms.
Best time for 1792K FFT length: 24.379 ms.
Best time for 2048K FFT length: 28.085 ms.
Best time for 2560K FFT length: 38.088 ms.
Best time for 3072K FFT length: 46.749 ms.
Best time for 3584K FFT length: 55.335 ms.
Best time for 4096K FFT length: 63.823 ms.
Best time for 5120K FFT length: 80.981 ms.
Best time for 6144K FFT length: 97.393 ms.
Best time for 7168K FFT length: 115.800 ms.
Best time for 8192K FFT length: 132.176 ms.
Best time for 10240K FFT length: 170.732 ms.
Best time for 12288K FFT length: 207.549 ms.
Best time for 14336K FFT length: 243.647 ms.
Best time for 16384K FFT length: 283.567 ms.
Best time for 20480K FFT length: 358.136 ms.
Best time for 24576K FFT length: 433.866 ms.
Best time for 28672K FFT length: 509.462 ms.
Best time for 32768K FFT length: 585.658 ms.
Best time for 58 bit trial factors: 2.918 ms.
Best time for 59 bit trial factors: 2.863 ms.
Best time for 60 bit trial factors: 2.842 ms.
Best time for 61 bit trial factors: 3.230 ms.
Best time for 62 bit trial factors: 3.452 ms.
Best time for 63 bit trial factors: 3.878 ms.
Best time for 64 bit trial factors: 5.003 ms.
Best time for 65 bit trial factors: 5.326 ms.
Best time for 66 bit trial factors: 5.865 ms.
Best time for 67 bit trial factors: 5.763 ms.

lfm · 2009-08-14, 15:29

Quote:

Originally Posted by Shinzok

I have a small question, is it suppose to look like this or is this usually not happening.

Benchmark was run with FullBench=1 + AllBench=1 on a

Q9650 @ Stock speed of 3000 MHz.
Windows 7 Ultimate (RTM) x64
4x1024 Corsair DDR2 @ 4-4-4-12 800 MHz. 2.14 volts

Looks pretty normal to me. Why do you ask?

storm5510 · 2009-08-15, 04:43

Where can one find the benchmark applications?

Mini-Geek · 2009-08-15, 04:55

Quote:

Originally Posted by storm5510

Where can one find the benchmark applications?

You use Prime95.
(optionally) First, close Prime95, and add FullBench=1 on a new line at the top of prime.txt (in the Prime95 folder). This will make it run on very small (down to 4K, normally 768K) and very large (up to 32M, normally 8M) FFT sizes instead of just the ones you might run into in GIMPS. (end optional)
Choose Options > Benchmark in Prime95, and wait for it to finish (takes several minutes). You have to use Test > Stop to stop any work before running the Benchmark. Needless to say, you should try to keep tasks, even mouse moving, to a minimum during it so that it gives consistent results.
I'm pretty sure that it will communicate the results to the v5 server once it completes (in the next comm., of course, which you can do immediately with Advanced > Manual Communication), if that Prime95 instance is set to use PrimeNet for assignments and such. If not and you want them included, you could probably email the results.txt to

(prior to PrimeNet v5 this was the only way)

storm5510 · 2009-08-15, 05:23

Thank you!

Shinzok · 2009-08-17, 19:58

Well cause running 4 threads = almost useless. Cause 2 threads will always be faster. Weird.

How come it slower with 3 and 4 threads :(

When only doing 2 threads:
Well I'm currently doing 2 Double-checks of a M21xxxxxxx and they both have around 0.034 sec per iteration (FFT sizes 1280K)

and as soon as I run the 2 Lucas-Lehmer of a M43xxxxxxx with FFT sizes 2560K on the other 2 cores

It becomes:
2 Double-checks of a M21xxxxxxx and they both have around 0.074 sec per iteration (FFT sizes 1280K)
2 Lucas-Lehmer of a M43xxxxxxx will both have around 0.143 sec per iteration (FFT sizes 2560K)

If I only do the 2 LL on 3rd+4th worker they both run around 0.069 sec per iteration (FFT sizes 2560)

How come my 1st+2nd thread become slower as soon as the 3rd+4th thread gets activated.

My CPU should not have any problems with 4 threads.

It can't be the memory bandwith cause thats more than what the Bus speed of my CPU is.

Memory runs a 400 Bus speed (800 MHz. DDR2) with 4-4-4-12. which should be more than enough to feed the CPU with data cause it runs on a 333 Bus speed.

Or should I use the Quad-bumbed bus speed and the DDR2 speed for comparing. (Cause then yes I'm 533 Mhz. short as 800+533=1333 )

cheesehead · 2009-08-17, 20:11

Quote:

Originally Posted by Shinzok

Well cause running 4 threads = almost useless. Cause 2 threads will always be faster. Weird.

How come it slower with 3 and 4 threads :(

It's because of limitation on simultaneous memory accesses by the cores. Prime95 accesses memory faster than almost any other application -- its top speed is usually determined by how fast the memory controller can provide it with all the fetches it requests.

Multicore systems are usually not designed to allow maximum memory access speed to all cores simultaneously, because it's so rare for any application to be able to use that simultaneous maximum effectively.

Cruelty · 2009-08-17, 21:26

Quote:

Originally Posted by Shinzok

Memory runs a 400 Bus speed (800 MHz. DDR2) with 4-4-4-12. which should be more than enough to feed the CPU with data cause it runs on a 333 Bus speed.

Or should I use the Quad-bumbed bus speed and the DDR2 speed for comparing. (Cause then yes I'm 533 Mhz. short as 800+533=1333 )

To achieve maximum performance with your Core2Quad, you should overclock bus speed to 400MHz (1600 effective) and more importantly upgrade memory to at least DDR2-1066. Even then you will encounter memory/bus saturation for tests involving FFT lengths greater than 256k.

nucleon · 2009-08-23, 10:10

Thought I'd post what I'm doing, thought it may interest.

On a core i7, I'm running 1x (P-1), 2x DC, 1x "whatever makes sense" (LL) on mprime (OS=centos 5.4). I'm running only 1x P-1 now, as with running multiple P-1, mprime tends to crash when it allocates memory for p-1 workers (and also crashes other processes on the system).

When running these workers, the per iteration times were:
1280K FFT 0.026 - 0.028sec (double checks)
2560K FFT 0.055 - 0.058sec (1st time LL)

vs single-thread benchmarks of
Best time for 1280K FFT length: 22.735 ms.
Best time for 2560K FFT length: 50.253 ms.

calculated max deviation from benchmark:
1280K FFT +23% (double checks)
2560K FFT +15% (1st time LL)

Code:

Benchmark results:
 (sorry without allbench)
Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz
CPU speed: 2698.72 MHz, 4 hyperthreaded cores
CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2, SSE4
L1 cache size: 32 KB
L2 cache size: 256 KB, L3 cache size: 8 MB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 64-bit version 25.9, RdtscTiming=1
Best time for 768K FFT length: 13.283 ms.
Best time for 896K FFT length: 15.978 ms.
Best time for 1024K FFT length: 18.002 ms.
Best time for 1280K FFT length: 22.735 ms.
Best time for 1536K FFT length: 27.367 ms.
Best time for 1792K FFT length: 33.123 ms.
Best time for 2048K FFT length: 37.373 ms.
Best time for 2560K FFT length: 50.253 ms.
Best time for 3072K FFT length: 60.785 ms.
Best time for 3584K FFT length: 73.949 ms.
Best time for 4096K FFT length: 83.140 ms.
Best time for 5120K FFT length: 106.840 ms.
Best time for 6144K FFT length: 128.367 ms.
Best time for 7168K FFT length: 157.444 ms.
Best time for 8192K FFT length: 174.277 ms.
Timing FFTs using 2 threads on 1 physical CPUs.
Best time for 768K FFT length: 6.854 ms.
Best time for 896K FFT length: 8.321 ms.
Best time for 1024K FFT length: 9.536 ms.
Best time for 1280K FFT length: 12.304 ms.
Best time for 1536K FFT length: 14.421 ms.
Best time for 1792K FFT length: 17.382 ms.
Best time for 2048K FFT length: 19.568 ms.
Best time for 2560K FFT length: 26.483 ms.
Best time for 3072K FFT length: 32.049 ms.
Best time for 3584K FFT length: 38.936 ms.
Best time for 4096K FFT length: 43.483 ms.
Best time for 5120K FFT length: 54.868 ms.
Best time for 6144K FFT length: 69.501 ms.
Best time for 7168K FFT length: 84.140 ms.
Best time for 8192K FFT length: 93.298 ms.
Timing FFTs using 4 threads on 2 physical CPUs.
Best time for 768K FFT length: 5.193 ms.
Best time for 896K FFT length: 5.792 ms.
Best time for 1024K FFT length: 7.794 ms.
Best time for 1280K FFT length: 7.030 ms.
Best time for 1536K FFT length: 8.300 ms.
Best time for 1792K FFT length: 9.602 ms.
Best time for 2048K FFT length: 10.701 ms.
Best time for 2560K FFT length: 13.710 ms.
Best time for 3072K FFT length: 16.561 ms.
Best time for 3584K FFT length: 20.141 ms.
Best time for 4096K FFT length: 22.750 ms.
Best time for 5120K FFT length: 29.443 ms.
Best time for 6144K FFT length: 36.574 ms.
Best time for 7168K FFT length: 47.786 ms.
Best time for 8192K FFT length: 55.738 ms.
Timing FFTs using 6 threads on 3 physical CPUs.
Best time for 768K FFT length: 5.529 ms.
Best time for 896K FFT length: 6.433 ms.
Best time for 1024K FFT length: 8.555 ms.
Best time for 1280K FFT length: 8.002 ms.
Best time for 1536K FFT length: 9.493 ms.
Best time for 1792K FFT length: 11.365 ms.
Best time for 2048K FFT length: 12.655 ms.
Best time for 2560K FFT length: 16.586 ms.
Best time for 3072K FFT length: 19.688 ms.
Best time for 3584K FFT length: 24.054 ms.
Best time for 4096K FFT length: 26.921 ms.
Best time for 5120K FFT length: 34.835 ms.
Best time for 6144K FFT length: 44.022 ms.
Best time for 7168K FFT length: 53.752 ms.
Best time for 8192K FFT length: 61.169 ms.
Timing FFTs using 8 threads on 4 physical CPUs.
Best time for 768K FFT length: 10.087 ms.
Best time for 896K FFT length: 6.371 ms.
Best time for 1024K FFT length: 8.511 ms.
Best time for 1280K FFT length: 7.650 ms.
Best time for 1536K FFT length: 9.112 ms.
Best time for 1792K FFT length: 10.463 ms.
Best time for 2048K FFT length: 11.945 ms.
Best time for 2560K FFT length: 15.027 ms.
Best time for 3072K FFT length: 18.335 ms.
Best time for 3584K FFT length: 22.365 ms.
Best time for 4096K FFT length: 24.857 ms.
Best time for 5120K FFT length: 33.219 ms.
Best time for 6144K FFT length: 42.238 ms.
Best time for 7168K FFT length: 53.811 ms.
Best time for 8192K FFT length: 62.752 ms.
Best time for 58 bit trial factors: 2.754 ms.
Best time for 59 bit trial factors: 2.789 ms.
Best time for 60 bit trial factors: 2.778 ms.
Best time for 61 bit trial factors: 3.098 ms.
Best time for 62 bit trial factors: 3.265 ms.
Best time for 63 bit trial factors: 3.853 ms.
Best time for 64 bit trial factors: 4.748 ms.
Best time for 65 bit trial factors: 4.997 ms.
Best time for 66 bit trial factors: 5.289 ms.
Best time for 67 bit trial factors: 5.226 ms.

Harvey563 · 2009-09-29, 04:21

[Tue Sep 29 04:13:13 2009]
Compare your results to other computers at http://www.mersenne.org/report_benchmarks
AMD Athlon(tm) X4 620 Processor
CPU speed: 2611.93 MHz, 4 cores
CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 48
L2 TLBS: 512
Prime95 32-bit version 25.9, RdtscTiming=1
Best time for 768K FFT length: 16.918 ms.
Best time for 896K FFT length: 20.495 ms.
Best time for 1024K FFT length: 23.270 ms.
Best time for 1280K FFT length: 28.907 ms.
Best time for 1536K FFT length: 34.670 ms.
Best time for 1792K FFT length: 42.183 ms.
Best time for 2048K FFT length: 47.853 ms.
Best time for 2560K FFT length: 64.596 ms.
Best time for 3072K FFT length: 79.318 ms.
Best time for 3584K FFT length: 94.202 ms.
Best time for 4096K FFT length: 106.892 ms.
Best time for 5120K FFT length: 138.772 ms.
Best time for 6144K FFT length: 168.662 ms.
Best time for 7168K FFT length: 208.525 ms.
Best time for 8192K FFT length: 244.765 ms.
Timing FFTs using 2 threads.
Best time for 768K FFT length: 12.545 ms.
Best time for 896K FFT length: 15.480 ms.
Best time for 1024K FFT length: 17.458 ms.
Best time for 1280K FFT length: 21.682 ms.
Best time for 1536K FFT length: 25.806 ms.
Best time for 1792K FFT length: 30.653 ms.
Best time for 2048K FFT length: 34.820 ms.
Best time for 2560K FFT length: 49.045 ms.
Best time for 3072K FFT length: 58.756 ms.
Best time for 3584K FFT length: 70.077 ms.
Best time for 4096K FFT length: 79.134 ms.
Best time for 5120K FFT length: 91.990 ms.
Best time for 6144K FFT length: 112.240 ms.
Best time for 7168K FFT length: 140.142 ms.
Best time for 8192K FFT length: 166.712 ms.
Timing FFTs using 3 threads.
Best time for 768K FFT length: 11.813 ms.
Best time for 896K FFT length: 19.203 ms.
Best time for 1024K FFT length: 20.841 ms.
Best time for 1280K FFT length: 23.875 ms.
Best time for 1536K FFT length: 27.441 ms.
Best time for 1792K FFT length: 29.328 ms.
Best time for 2048K FFT length: 32.046 ms.
Best time for 2560K FFT length: 54.200 ms.
Best time for 3072K FFT length: 61.936 ms.
Best time for 3584K FFT length: 68.030 ms.
Best time for 4096K FFT length: 74.687 ms.
Best time for 5120K FFT length: 80.554 ms.
Best time for 6144K FFT length: 97.646 ms.
Best time for 7168K FFT length: 120.261 ms.
Best time for 8192K FFT length: 141.373 ms.
Timing FFTs using 4 threads.
Best time for 768K FFT length: 12.632 ms.
Best time for 896K FFT length: 18.849 ms.
Best time for 1024K FFT length: 20.700 ms.
Best time for 1280K FFT length: 24.256 ms.
Best time for 1536K FFT length: 28.196 ms.
Best time for 1792K FFT length: 32.320 ms.
Best time for 2048K FFT length: 34.867 ms.
Best time for 2560K FFT length: 58.198 ms.
Best time for 3072K FFT length: 67.073 ms.
Best time for 3584K FFT length: 75.033 ms.
Best time for 4096K FFT length: 82.957 ms.
Best time for 5120K FFT length: 82.498 ms.
Best time for 6144K FFT length: 98.386 ms.
Best time for 7168K FFT length: 119.463 ms.
Best time for 8192K FFT length: 140.372 ms.
Best time for 58 bit trial factors: 4.447 ms.
Best time for 59 bit trial factors: 4.462 ms.
Best time for 60 bit trial factors: 4.462 ms.
Best time for 61 bit trial factors: 4.459 ms.
Best time for 62 bit trial factors: 4.463 ms.
Best time for 63 bit trial factors: 8.193 ms.
Best time for 64 bit trial factors: 8.201 ms.
Best time for 65 bit trial factors: 8.175 ms.
Best time for 66 bit trial factors: 8.113 ms.
Best time for 67 bit trial factors: 8.118 ms.

moebius · 2009-11-06, 16:22

No sooner said than done.

AMD Phenom II X4 955 stock speed 3.2 Ghz AM3 6MB 125 W Black Edition
Gigabyte MA790GPT-UD3H 790GX AM3 ATX
DDR3 4GB PC1333LV CL7 OCZ Kit 1333 Mhz

Sp.(1024K)(1280K)(1536K)(1792K)(2048K)(2560K)(3072K)(3584K)(4096K)
3214 (18.09)(22.89)(27.36)(33.47)(37.88) (49.86) (59.66) (72.51)(82.00)

A desire to AMD: Please develop next time a good cpu-fan, the standard cpu-fan is too loud and the processor is to hot. Thank you.

moebius · 2009-11-07, 07:58

[quote=moebius;195041]Details

AMD Phenom(tm) II X4 955 Processor
CPU speed: 3214.04 MHz, 4 cores
CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
L1 cache size: 64 KB
L2 cache size: 512 KB, L3 cache size: 6 MB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 48
L2 TLBS: 512
Prime95 32-bit version 25.9, RdtscTiming=1
Best time for 768K FFT length: 13.106 ms.
Best time for 896K FFT length: 15.955 ms.
Best time for 1024K FFT length: 18.094 ms.
Best time for 1280K FFT length: 22.891 ms.
Best time for 1536K FFT length: 27.364 ms.
Best time for 1792K FFT length: 33.475 ms.
Best time for 2048K FFT length: 37.877 ms.
Best time for 2560K FFT length: 49.859 ms.
Best time for 3072K FFT length: 59.663 ms.
Best time for 3584K FFT length: 72.506 ms.
Best time for 4096K FFT length: 81.999 ms.
Best time for 5120K FFT length: 108.119 ms.
Best time for 6144K FFT length: 135.245 ms.
Best time for 7168K FFT length: 166.800 ms.
Best time for 8192K FFT length: 189.253 ms.
Timing FFTs using 2 threads.
Best time for 768K FFT length: 8.987 ms.
Best time for 896K FFT length: 11.800 ms.
Best time for 1024K FFT length: 14.229 ms.
Best time for 1280K FFT length: 16.939 ms.
Best time for 1536K FFT length: 20.428 ms.
Best time for 1792K FFT length: 24.535 ms.
Best time for 2048K FFT length: 28.087 ms.
Best time for 2560K FFT length: 36.770 ms.
Best time for 3072K FFT length: 43.947 ms.
Best time for 3584K FFT length: 52.144 ms.
Best time for 4096K FFT length: 58.756 ms.
Best time for 5120K FFT length: 59.602 ms.
Best time for 6144K FFT length: 72.159 ms.
Best time for 7168K FFT length: 87.499 ms.
Best time for 8192K FFT length: 98.535 ms.
Timing FFTs using 3 threads.
Best time for 768K FFT length: 6.688 ms.
Best time for 896K FFT length: 7.716 ms.
Best time for 1024K FFT length: 8.910 ms.
Best time for 1280K FFT length: 14.926 ms.
Best time for 1536K FFT length: 17.586 ms.
Best time for 1792K FFT length: 20.750 ms.
Best time for 2048K FFT length: 23.196 ms.
Best time for 2560K FFT length: 31.937 ms.
Best time for 3072K FFT length: 37.546 ms.
Best time for 3584K FFT length: 43.241 ms.
Best time for 4096K FFT length: 48.408 ms.
Best time for 5120K FFT length: 41.453 ms.
Best time for 6144K FFT length: 50.777 ms.
Best time for 7168K FFT length: 60.934 ms.
Best time for 8192K FFT length: 69.030 ms.
Timing FFTs using 4 threads.
Best time for 768K FFT length: 6.172 ms.
Best time for 896K FFT length: 7.396 ms.
Best time for 1024K FFT length: 8.532 ms.
Best time for 1280K FFT length: 14.085 ms.
Best time for 1536K FFT length: 16.848 ms.
Best time for 1792K FFT length: 19.658 ms.
Best time for 2048K FFT length: 21.802 ms.
Best time for 2560K FFT length: 29.886 ms.
Best time for 3072K FFT length: 35.772 ms.
Best time for 3584K FFT length: 40.753 ms.
Best time for 4096K FFT length: 45.818 ms.
Best time for 5120K FFT length: 34.042 ms.
Best time for 6144K FFT length: 40.836 ms.
Best time for 7168K FFT length: 48.849 ms.
Best time for 8192K FFT length: 54.819 ms.
Best time for 58 bit trial factors: 3.612 ms.
Best time for 59 bit trial factors: 3.626 ms.
Best time for 60 bit trial factors: 3.626 ms.
Best time for 61 bit trial factors: 3.612 ms.
Best time for 62 bit trial factors: 3.627 ms.
Best time for 63 bit trial factors: 6.656 ms.
Best time for 64 bit trial factors: 6.661 ms.
Best time for 65 bit trial factors: 6.646 ms.
Best time for 66 bit trial factors: 6.594 ms.
Best time for 67 bit trial factors: 6.598 ms.
[Tue Nov 03 18:31:02 2009]

lfm · 2009-11-07, 09:35

Quote:

Originally Posted by nucleon

On a core i7, I'm running 1x (P-1), 2x DC, 1x "whatever makes sense" (LL) on mprime (OS=centos 5.4). I'm running only 1x P-1 now, as with running multiple P-1, mprime tends to crash when it allocates memory for p-1 workers (and also crashes other processes on the system).

How much memory have you given mprime? It shouldn't crash. Try telling it to only use 1/5 of your real memory.

2009-01-11, 09:11	#474
T.Rex Feb 2004 France 2²×229 Posts	Don't forget taxes ! OK, thanks for the information about taxes. And, yes, the 275 € include taxes. So the difference is now only 10-20 %. Shipping, probably. Thanks again. Tony

2009-03-08, 08:07	#476
xalint1 2²×23×79 Posts	I7 920 with slight over clock bench Sun Mar 08 03:13:51 2009] Compare your results to other computers at http://www.mersenne.org/report_benchmarks Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz CPU speed: 3192.06 MHz, 4 hyperthreaded cores CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2, SSE4 L1 cache size: 32 KB L2 cache size: 256 KB, L3 cache size: 8064 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes TLBS: 64 Prime95 64-bit version 25.8, RdtscTiming=1 Best time for 768K FFT length: 11.971 ms. Best time for 896K FFT length: 14.309 ms. Best time for 1024K FFT length: 16.595 ms. Best time for 1280K FFT length: 21.564 ms. Best time for 1536K FFT length: 26.503 ms. Best time for 1792K FFT length: 31.488 ms. Best time for 2048K FFT length: 35.179 ms. Best time for 2560K FFT length: 44.606 ms. Best time for 3072K FFT length: 54.694 ms. Best time for 3584K FFT length: 65.207 ms. Best time for 4096K FFT length: 73.897 ms. Best time for 5120K FFT length: 93.774 ms. Best time for 6144K FFT length: 113.237 ms. Best time for 7168K FFT length: 138.259 ms. Best time for 8192K FFT length: 152.818 ms. Timing FFTs using 2 threads on 1 physical CPUs. Best time for 768K FFT length: 11.187 ms. Best time for 896K FFT length: 13.438 ms. Best time for 1024K FFT length: 15.396 ms. Best time for 1280K FFT length: 19.219 ms. Best time for 1536K FFT length: 23.365 ms. Best time for 1792K FFT length: 27.978 ms. Best time for 2048K FFT length: 31.099 ms. Best time for 2560K FFT length: 41.037 ms. Best time for 3072K FFT length: 50.122 ms. Best time for 3584K FFT length: 60.695 ms. Best time for 4096K FFT length: 67.337 ms. Best time for 5120K FFT length: 85.991 ms. Best time for 6144K FFT length: 103.945 ms. Best time for 7168K FFT length: 124.827 ms. Best time for 8192K FFT length: 137.619 ms. Timing FFTs using 4 threads on 2 physical CPUs. Best time for 768K FFT length: 9.120 ms. Best time for 896K FFT length: 9.867 ms. Best time for 1024K FFT length: 14.683 ms. Best time for 1280K FFT length: 11.027 ms. Best time for 1536K FFT length: 13.200 ms. Best time for 1792K FFT length: 15.385 ms. Best time for 2048K FFT length: 17.105 ms. Best time for 2560K FFT length: 21.262 ms. Best time for 3072K FFT length: 25.887 ms. Best time for 3584K FFT length: 31.229 ms. Best time for 4096K FFT length: 34.865 ms. Best time for 5120K FFT length: 44.391 ms. Best time for 6144K FFT length: 53.848 ms. Best time for 7168K FFT length: 64.461 ms. Best time for 8192K FFT length: 71.829 ms. Timing FFTs using 6 threads on 3 physical CPUs. Best time for 768K FFT length: 8.108 ms. Best time for 896K FFT length: 8.534 ms. Best time for 1024K FFT length: 13.298 ms. Best time for 1280K FFT length: 8.936 ms. Best time for 1536K FFT length: 10.297 ms. Best time for 1792K FFT length: 11.860 ms. Best time for 2048K FFT length: 13.200 ms. Best time for 2560K FFT length: 16.058 ms. Best time for 3072K FFT length: 19.147 ms. Best time for 3584K FFT length: 22.206 ms. Best time for 4096K FFT length: 25.082 ms. Best time for 5120K FFT length: 31.670 ms. Best time for 6144K FFT length: 40.111 ms. Best time for 7168K FFT length: 48.366 ms. Best time for 8192K FFT length: 55.047 ms. Timing FFTs using 8 threads on 4 physical CPUs. Best time for 768K FFT length: 7.677 ms. Best time for 896K FFT length: 7.934 ms. Best time for 1024K FFT length: 12.659 ms. Best time for 1280K FFT length: 8.231 ms. Best time for 1536K FFT length: 9.536 ms. Best time for 1792K FFT length: 10.886 ms. Best time for 2048K FFT length: 12.177 ms. Best time for 2560K FFT length: 14.712 ms. Best time for 3072K FFT length: 17.728 ms. Best time for 3584K FFT length: 20.179 ms. Best time for 4096K FFT length: 23.002 ms. Best time for 5120K FFT length: 28.231 ms. Best time for 6144K FFT length: 36.371 ms. Best time for 7168K FFT length: 44.458 ms. Best time for 8192K FFT length: 50.886 ms. Best time for 58 bit trial factors: 2.310 ms. Best time for 59 bit trial factors: 2.336 ms. Best time for 60 bit trial factors: 2.339 ms. Best time for 61 bit trial factors: 2.576 ms. Best time for 62 bit trial factors: 2.726 ms. Best time for 63 bit trial factors: 3.220 ms. Best time for 64 bit trial factors: 3.981 ms. Best time for 65 bit trial factors: 4.195 ms. Best time for 66 bit trial factors: 4.389 ms. Best time for 67 bit trial factors: 4.357 ms.

2009-04-05, 00:00	#477
S485122 "Jacob" Sep 2006 Brussels, Belgium 2×3²×5×19 Posts	Fake Benchmarks It seems some AMD owners are spicing the benchmarks with fake results, for instance : Phenom 9600 Quad-Core with 0.99 and 1.15 factoring times (the other results are more in 9 second ranges.) Code: AMD Athlon 64 3200+ 2210 7.13 7.96 9.90 12.07 14.89 16.80 24.55 30.21 35.81 39.69 2.05 while the other lines are more like AMD Athlon 64 3200+ 2583 34.53 38.38 48.54 59.48 72.12 80.09 107.96 132.09 163.28 178.01 10.63 The whole benchmark page would need a lot of consolidating work (removing duplicate entries amongst other things...) Jacob Last fiddled with by S485122 on 2009-04-05 at 00:02 Reason: rant about duplicate entries

2009-07-10, 14:54	#485
T.Rex Feb 2004 France 2²×229 Posts	Glucas on 2xNehalem 4 cores 2.93 GHz Glucas -O3 -xSSE4 with 8 threads on 8 cores (no hyper-threading). Best time for 2304K FFT: 8.26 msec/iter .

2009-07-16, 06:27	#486
msft Jul 2009 Tokyo 2×5×61 Posts	MacLucasFFTW on PS3. MacLucasFFTW on PS3. 2048k fft sec/iter = 0.084 4096k fft sec/iter = 0.194

2008-12-30, 11:06	#451
henryzz Just call me Henry "David" Sep 2007 Cambridge (GMT/BST) 7·29² Posts	how do you get it to do that huge benchmark

2008-12-30, 16:56	#453
starrynte Oct 2008 California 2²×59 Posts	correct

2009-01-03, 18:45	#455
henryzz Just call me Henry "David" Sep 2007 Cambridge (GMT/BST) 7·29² Posts	pretty rubbish with two threads i though all dual cores scaled better than than

2009-04-27, 01:11	#478
James Heinrich "James Heinrich" May 2004 ex-Northern Ontario 6543₈ Posts	Can anyone with a PhenomII please post a benchmark, please?

2009-04-28, 01:48	#480
sdbardwick Aug 2002 North San Diego County 5×137 Posts	I need to do some more investigation regarding the above Phenom II. I have no idea why multithreading scales so badly at lower FFT sizes. It is currently running 1 doublecheck per core quite nicely (27ms/it 1280k FFT on each core).

2009-08-15, 04:43	#490
storm5510 Random Account Aug 2009 13×151 Posts	Where can one find the benchmark applications?

2009-08-15, 05:23	#492
storm5510 Random Account Aug 2009 13·151 Posts	Thank you!

2009-08-17, 19:58	#493
Shinzok Oct 2008 Zevenbergen, NL 6₈ Posts	Well cause running 4 threads = almost useless. Cause 2 threads will always be faster. Weird. How come it slower with 3 and 4 threads :( When only doing 2 threads: Well I'm currently doing 2 Double-checks of a M21xxxxxxx and they both have around 0.034 sec per iteration (FFT sizes 1280K) and as soon as I run the 2 Lucas-Lehmer of a M43xxxxxxx with FFT sizes 2560K on the other 2 cores It becomes: 2 Double-checks of a M21xxxxxxx and they both have around 0.074 sec per iteration (FFT sizes 1280K) 2 Lucas-Lehmer of a M43xxxxxxx will both have around 0.143 sec per iteration (FFT sizes 2560K) If I only do the 2 LL on 3rd+4th worker they both run around 0.069 sec per iteration (FFT sizes 2560) How come my 1st+2nd thread become slower as soon as the 3rd+4th thread gets activated. My CPU should not have any problems with 4 threads. It can't be the memory bandwith cause thats more than what the Bus speed of my CPU is. Memory runs a 400 Bus speed (800 MHz. DDR2) with 4-4-4-12. which should be more than enough to feed the CPU with data cause it runs on a 333 Bus speed. Or should I use the Quad-bumbed bus speed and the DDR2 speed for comparing. (Cause then yes I'm 533 Mhz. short as 800+533=1333 ) Last fiddled with by Shinzok on 2009-08-17 at 20:21

2009-09-29, 04:21	#497
Harvey563 Apr 2004 11·17 Posts	AMD Athlon(tm) X4 620 Processor, stock & DDR2 800 [Tue Sep 29 04:13:13 2009] Compare your results to other computers at http://www.mersenne.org/report_benchmarks AMD Athlon(tm) X4 620 Processor CPU speed: 2611.93 MHz, 4 cores CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 48 L2 TLBS: 512 Prime95 32-bit version 25.9, RdtscTiming=1 Best time for 768K FFT length: 16.918 ms. Best time for 896K FFT length: 20.495 ms. Best time for 1024K FFT length: 23.270 ms. Best time for 1280K FFT length: 28.907 ms. Best time for 1536K FFT length: 34.670 ms. Best time for 1792K FFT length: 42.183 ms. Best time for 2048K FFT length: 47.853 ms. Best time for 2560K FFT length: 64.596 ms. Best time for 3072K FFT length: 79.318 ms. Best time for 3584K FFT length: 94.202 ms. Best time for 4096K FFT length: 106.892 ms. Best time for 5120K FFT length: 138.772 ms. Best time for 6144K FFT length: 168.662 ms. Best time for 7168K FFT length: 208.525 ms. Best time for 8192K FFT length: 244.765 ms. Timing FFTs using 2 threads. Best time for 768K FFT length: 12.545 ms. Best time for 896K FFT length: 15.480 ms. Best time for 1024K FFT length: 17.458 ms. Best time for 1280K FFT length: 21.682 ms. Best time for 1536K FFT length: 25.806 ms. Best time for 1792K FFT length: 30.653 ms. Best time for 2048K FFT length: 34.820 ms. Best time for 2560K FFT length: 49.045 ms. Best time for 3072K FFT length: 58.756 ms. Best time for 3584K FFT length: 70.077 ms. Best time for 4096K FFT length: 79.134 ms. Best time for 5120K FFT length: 91.990 ms. Best time for 6144K FFT length: 112.240 ms. Best time for 7168K FFT length: 140.142 ms. Best time for 8192K FFT length: 166.712 ms. Timing FFTs using 3 threads. Best time for 768K FFT length: 11.813 ms. Best time for 896K FFT length: 19.203 ms. Best time for 1024K FFT length: 20.841 ms. Best time for 1280K FFT length: 23.875 ms. Best time for 1536K FFT length: 27.441 ms. Best time for 1792K FFT length: 29.328 ms. Best time for 2048K FFT length: 32.046 ms. Best time for 2560K FFT length: 54.200 ms. Best time for 3072K FFT length: 61.936 ms. Best time for 3584K FFT length: 68.030 ms. Best time for 4096K FFT length: 74.687 ms. Best time for 5120K FFT length: 80.554 ms. Best time for 6144K FFT length: 97.646 ms. Best time for 7168K FFT length: 120.261 ms. Best time for 8192K FFT length: 141.373 ms. Timing FFTs using 4 threads. Best time for 768K FFT length: 12.632 ms. Best time for 896K FFT length: 18.849 ms. Best time for 1024K FFT length: 20.700 ms. Best time for 1280K FFT length: 24.256 ms. Best time for 1536K FFT length: 28.196 ms. Best time for 1792K FFT length: 32.320 ms. Best time for 2048K FFT length: 34.867 ms. Best time for 2560K FFT length: 58.198 ms. Best time for 3072K FFT length: 67.073 ms. Best time for 3584K FFT length: 75.033 ms. Best time for 4096K FFT length: 82.957 ms. Best time for 5120K FFT length: 82.498 ms. Best time for 6144K FFT length: 98.386 ms. Best time for 7168K FFT length: 119.463 ms. Best time for 8192K FFT length: 140.372 ms. Best time for 58 bit trial factors: 4.447 ms. Best time for 59 bit trial factors: 4.462 ms. Best time for 60 bit trial factors: 4.462 ms. Best time for 61 bit trial factors: 4.459 ms. Best time for 62 bit trial factors: 4.463 ms. Best time for 63 bit trial factors: 8.193 ms. Best time for 64 bit trial factors: 8.201 ms. Best time for 65 bit trial factors: 8.175 ms. Best time for 66 bit trial factors: 8.113 ms. Best time for 67 bit trial factors: 8.118 ms.

2009-11-06, 16:22	#498
moebius Jul 2009 Germany 607 Posts	New Computer Benchmark No sooner said than done. AMD Phenom II X4 955 stock speed 3.2 Ghz AM3 6MB 125 W Black Edition Gigabyte MA790GPT-UD3H 790GX AM3 ATX DDR3 4GB PC1333LV CL7 OCZ Kit 1333 Mhz Sp.(1024K)(1280K)(1536K)(1792K)(2048K)(2560K)(3072K)(3584K)(4096K) 3214 (18.09)(22.89)(27.36)(33.47)(37.88) (49.86) (59.66) (72.51)(82.00) A desire to AMD: Please develop next time a good cpu-fan, the standard cpu-fan is too loud and the processor is to hot. Thank you.

2009-11-07, 07:58	#499
moebius Jul 2009 Germany 607₁₀ Posts	[quote=moebius;195041]Details AMD Phenom(tm) II X4 955 Processor CPU speed: 3214.04 MHz, 4 cores CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2 L1 cache size: 64 KB L2 cache size: 512 KB, L3 cache size: 6 MB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 48 L2 TLBS: 512 Prime95 32-bit version 25.9, RdtscTiming=1 Best time for 768K FFT length: 13.106 ms. Best time for 896K FFT length: 15.955 ms. Best time for 1024K FFT length: 18.094 ms. Best time for 1280K FFT length: 22.891 ms. Best time for 1536K FFT length: 27.364 ms. Best time for 1792K FFT length: 33.475 ms. Best time for 2048K FFT length: 37.877 ms. Best time for 2560K FFT length: 49.859 ms. Best time for 3072K FFT length: 59.663 ms. Best time for 3584K FFT length: 72.506 ms. Best time for 4096K FFT length: 81.999 ms. Best time for 5120K FFT length: 108.119 ms. Best time for 6144K FFT length: 135.245 ms. Best time for 7168K FFT length: 166.800 ms. Best time for 8192K FFT length: 189.253 ms. Timing FFTs using 2 threads. Best time for 768K FFT length: 8.987 ms. Best time for 896K FFT length: 11.800 ms. Best time for 1024K FFT length: 14.229 ms. Best time for 1280K FFT length: 16.939 ms. Best time for 1536K FFT length: 20.428 ms. Best time for 1792K FFT length: 24.535 ms. Best time for 2048K FFT length: 28.087 ms. Best time for 2560K FFT length: 36.770 ms. Best time for 3072K FFT length: 43.947 ms. Best time for 3584K FFT length: 52.144 ms. Best time for 4096K FFT length: 58.756 ms. Best time for 5120K FFT length: 59.602 ms. Best time for 6144K FFT length: 72.159 ms. Best time for 7168K FFT length: 87.499 ms. Best time for 8192K FFT length: 98.535 ms. Timing FFTs using 3 threads. Best time for 768K FFT length: 6.688 ms. Best time for 896K FFT length: 7.716 ms. Best time for 1024K FFT length: 8.910 ms. Best time for 1280K FFT length: 14.926 ms. Best time for 1536K FFT length: 17.586 ms. Best time for 1792K FFT length: 20.750 ms. Best time for 2048K FFT length: 23.196 ms. Best time for 2560K FFT length: 31.937 ms. Best time for 3072K FFT length: 37.546 ms. Best time for 3584K FFT length: 43.241 ms. Best time for 4096K FFT length: 48.408 ms. Best time for 5120K FFT length: 41.453 ms. Best time for 6144K FFT length: 50.777 ms. Best time for 7168K FFT length: 60.934 ms. Best time for 8192K FFT length: 69.030 ms. Timing FFTs using 4 threads. Best time for 768K FFT length: 6.172 ms. Best time for 896K FFT length: 7.396 ms. Best time for 1024K FFT length: 8.532 ms. Best time for 1280K FFT length: 14.085 ms. Best time for 1536K FFT length: 16.848 ms. Best time for 1792K FFT length: 19.658 ms. Best time for 2048K FFT length: 21.802 ms. Best time for 2560K FFT length: 29.886 ms. Best time for 3072K FFT length: 35.772 ms. Best time for 3584K FFT length: 40.753 ms. Best time for 4096K FFT length: 45.818 ms. Best time for 5120K FFT length: 34.042 ms. Best time for 6144K FFT length: 40.836 ms. Best time for 7168K FFT length: 48.849 ms. Best time for 8192K FFT length: 54.819 ms. Best time for 58 bit trial factors: 3.612 ms. Best time for 59 bit trial factors: 3.626 ms. Best time for 60 bit trial factors: 3.626 ms. Best time for 61 bit trial factors: 3.612 ms. Best time for 62 bit trial factors: 3.627 ms. Best time for 63 bit trial factors: 6.656 ms. Best time for 64 bit trial factors: 6.661 ms. Best time for 65 bit trial factors: 6.646 ms. Best time for 66 bit trial factors: 6.594 ms. Best time for 67 bit trial factors: 6.598 ms. [Tue Nov 03 18:31:02 2009]

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