Looking for Pentium 4 Celeron owner

Prime95 · 2003-01-28, 05:42

and running Windows...

Can you post your version 22 benchmark results here. Then download version 23 pre-beta from ftp://mersenne.org/gimps/p95v231.zip and
post your benchmarks from that version. I want to make sure the
new FFTs for 128K L2 cache are indeed faster.

Thanks.

I know its futile to ask, but I don't recommend running v23 full time just yet, even though it should be a few percent faster on first time LL tests (Willamette and Northwoods too). I should run it through a few more QA tests first.

eepiccolo · 2003-01-28, 13:00

I assume then, that you are not interested in a processor with 512K L2 cache?

Prime95 · 2003-01-28, 14:59

I have a Northwood and Willie, so I can test and benchmark those CPUs. I don't have a Celeron.

lycorn · 2003-01-28, 17:23

How about Athlon XPs? Will they benefit anything from version 23?

Prime95 · 2003-01-28, 18:40

Quote:

Originally Posted by lycorn

How about Athlon XPs? Will they benefit anything from version 23?

Nope. The change only affects large SSE2 FFTs.

Xyzzy · 2003-01-28, 21:11

I have a mobile 1.5GHz Celery, but it has a 256KB L2...

Post me your address and I'll have Newegg send you a new Celery courtesy of TPR... It will pop right into your TH7 just like that...

I'm serious...

Xyzzy · 2003-01-29, 04:33

Well, Del (outlnder) went out and bought a Celery today so I think he'll have some numbers for you by tomorrow... The offer to send you a Celery is still open, though... Either way, this optimization looks to be really interesting... :)

Prime95 · 2003-01-29, 05:03

Thanks for the offer but it really is not necessary. I have every reason to believe the optimization will work as expected. It is simply an extension of the same change I made for 512K and 256K L2 caches.

On another note, I ran some more tests and 23.1 seems pretty safe. If you feel adventurous you can gain a few percent on your 33M exponents.

priwo · 2003-01-29, 06:12

I did the test with my Celeron but Prime95 Ver. 23 crashed each time i started the benchmark or the torture test.

Intel(R) Celeron(R) CPU 2.00GHz
CPU speed: 2017.96 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: unknown
L1 cache line size: 64 bytes
L2 cache line size: unknown
TLBS: 64
Prime95 version 22.13, RdtscTiming=1
Best time for 256K FFT length: 16.258 ms.
Best time for 320K FFT length: 24.750 ms.
Best time for 384K FFT length: 28.242 ms.
Best time for 448K FFT length: 35.147 ms.
Best time for 512K FFT length: 43.738 ms.
Best time for 640K FFT length: 84.817 ms.
Best time for 768K FFT length: 129.011 ms.
Best time for 896K FFT length: 157.771 ms.
Best time for 1024K FFT length: 184.841 ms.
Best time for 1280K FFT length: 289.698 ms.
Best time for 1536K FFT length: 350.892 ms.
Best time for 1792K FFT length: 428.458 ms.

Intel(R) Celeron(R) CPU 2.00GHz
CPU speed: 2017.83 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: unknown
L1 cache line size: 64 bytes
L2 cache line size: unknown
TLBS: 64
Prime95 version 22.13, RdtscTiming=1
Best time for 256K FFT length: 16.304 ms.
Best time for 320K FFT length: 24.733 ms.
Best time for 384K FFT length: 28.250 ms.
Best time for 448K FFT length: 35.051 ms.
Best time for 512K FFT length: 43.873 ms.
Best time for 640K FFT length: 84.817 ms.
Best time for 768K FFT length: 128.861 ms.
Best time for 896K FFT length: 157.972 ms.
Best time for 1024K FFT length: 184.750 ms.
Best time for 1280K FFT length: 288.804 ms.
Best time for 1536K FFT length: 351.099 ms.
Best time for 1792K FFT length: 426.922 ms.
[Wed Jan 29 06:53:06 2003]

Intel(R) Celeron(R) CPU 2.00GHz
CPU speed: 2017.69 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: unknown
L1 cache line size: 64 bytes
L2 cache line size: unknown
TLBS: 64
Prime95 version 23.1, RdtscTiming=1
[Wed Jan 29 06:54:18 2003]

eepiccolo · 2003-01-29, 13:17

Quote:

Originally Posted by Prime95

Thanks for the offer but it really is not necessary. I have every reason to believe the optimization will work as expected. It is simply an extension of the same change I made for 512K and 256K L2 caches.

On another note, I ran some more tests and 23.1 seems pretty safe. If you feel adventurous you can gain a few percent on your 33M exponents.

I'll take you up on that offer. v23 actually runs about 9% faster on my P4.

Prime95 · 2003-01-29, 21:10

Quote:

Originally Posted by priwo

I did the test with my Celeron but Prime95 Ver. 23 crashed each time i started the benchmark or the torture test.

Hmm, prime95 isn't detecting your L2 cache size. Add the line "CPUL2CacheSize=128" until I can fix the bug.

2003-01-28, 05:42	#1
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 1110101100110₂ Posts	Looking for Pentium 4 Celeron owner and running Windows... Can you post your version 22 benchmark results here. Then download version 23 pre-beta from ftp://mersenne.org/gimps/p95v231.zip and post your benchmarks from that version. I want to make sure the new FFTs for 128K L2 cache are indeed faster. Thanks. I know its futile to ask, but I don't recommend running v23 full time just yet, even though it should be a few percent faster on first time LL tests (Willamette and Northwoods too). I should run it through a few more QA tests first.

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2003-01-28, 13:00	#2
eepiccolo Dec 2002 Frederick County, MD 370₁₀ Posts	I assume then, that you are not interested in a processor with 512K L2 cache?

2003-01-28, 14:59	#3
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2×53×71 Posts	I have a Northwood and Willie, so I can test and benchmark those CPUs. I don't have a Celeron.

2003-01-28, 17:23	#4
lycorn Sep 2002 Oeiras, Portugal 2⁶·23 Posts	How about Athlon XPs? Will they benefit anything from version 23?

2003-01-28, 21:11	#6
Xyzzy "Mike" Aug 2002 2⁵×257 Posts	I have a mobile 1.5GHz Celery, but it has a 256KB L2... Post me your address and I'll have Newegg send you a new Celery courtesy of TPR... It will pop right into your TH7 just like that... I'm serious...

2003-01-29, 04:33	#7
Xyzzy "Mike" Aug 2002 2⁵·257 Posts	Well, Del (outlnder) went out and bought a Celery today so I think he'll have some numbers for you by tomorrow... The offer to send you a Celery is still open, though... Either way, this optimization looks to be really interesting... :)

2003-01-29, 05:03	#8
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2×53×71 Posts	Thanks for the offer but it really is not necessary. I have every reason to believe the optimization will work as expected. It is simply an extension of the same change I made for 512K and 256K L2 caches. On another note, I ran some more tests and 23.1 seems pretty safe. If you feel adventurous you can gain a few percent on your 33M exponents.

2003-01-29, 06:12	#9
priwo Jan 2003 6₁₀ Posts	I did the test with my Celeron but Prime95 Ver. 23 crashed each time i started the benchmark or the torture test. Intel(R) Celeron(R) CPU 2.00GHz CPU speed: 2017.96 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: unknown L1 cache line size: 64 bytes L2 cache line size: unknown TLBS: 64 Prime95 version 22.13, RdtscTiming=1 Best time for 256K FFT length: 16.258 ms. Best time for 320K FFT length: 24.750 ms. Best time for 384K FFT length: 28.242 ms. Best time for 448K FFT length: 35.147 ms. Best time for 512K FFT length: 43.738 ms. Best time for 640K FFT length: 84.817 ms. Best time for 768K FFT length: 129.011 ms. Best time for 896K FFT length: 157.771 ms. Best time for 1024K FFT length: 184.841 ms. Best time for 1280K FFT length: 289.698 ms. Best time for 1536K FFT length: 350.892 ms. Best time for 1792K FFT length: 428.458 ms. Intel(R) Celeron(R) CPU 2.00GHz CPU speed: 2017.83 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: unknown L1 cache line size: 64 bytes L2 cache line size: unknown TLBS: 64 Prime95 version 22.13, RdtscTiming=1 Best time for 256K FFT length: 16.304 ms. Best time for 320K FFT length: 24.733 ms. Best time for 384K FFT length: 28.250 ms. Best time for 448K FFT length: 35.051 ms. Best time for 512K FFT length: 43.873 ms. Best time for 640K FFT length: 84.817 ms. Best time for 768K FFT length: 128.861 ms. Best time for 896K FFT length: 157.972 ms. Best time for 1024K FFT length: 184.750 ms. Best time for 1280K FFT length: 288.804 ms. Best time for 1536K FFT length: 351.099 ms. Best time for 1792K FFT length: 426.922 ms. [Wed Jan 29 06:53:06 2003] Intel(R) Celeron(R) CPU 2.00GHz CPU speed: 2017.69 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: unknown L1 cache line size: 64 bytes L2 cache line size: unknown TLBS: 64 Prime95 version 23.1, RdtscTiming=1 [Wed Jan 29 06:54:18 2003]