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Message boards : Number crunching : LLR Version 3.8.14 released

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Carlos Pinho
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Message 84301 - Posted: 22 Mar 2015 | 10:37:15 UTC

Hi All,

I uploaded today the version 3.8.14 of the LLR program.
You can find it now on my personal site :

http://jpenne.free.fr/

The 32bit Windows and Linux compressed binaries are available as usual.
The Linux 64bit binaries are also released here.
I uploaded also the complete source in a compressed file ; it may be used to
build the Mac-Intel executable and also the 64bit Windows binary.
This LLR version is linked with the Version 28.5 of George Woltman's gwnum library.
I released also a cllrd binary, which is linked with the debug version of this
gwnum library.
You can see in the Readme.text file, what is new in this release.
As usual, I need help to build the 32bit Mac Intel binary, and also the 64bit Mac Intel and Windows ones.
Please, inform me if you encountered any problem while using this new version.
Best Regards,
Jean


http://www.mersenneforum.org/showthread.php?t=20137
____________

Iain BethuneProject donor
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 84334 - Posted: 23 Mar 2015 | 14:50:41 UTC

Hi,

There is one relevant fix available in the new LLR 3.8.14 that affects a couple of CPUs:

Intel 4960X
Intel 4500U

If you have one of these can you please download both the 3.8.13 and 3.8.14 versions of LLR from http://jpenne.free.fr, and run a quick test like:

./llr -d -q"3752948*2^3752948-1" Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1 Using zero-padded FMA3 FFT length 384K, Pass1=256, Pass2=1536


You can stop after a couple of seconds, I just need to see what FFT type it chooses.

Cheers

- Iain
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3073428256125*2^1290000-1 is Prime!

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321 LLR Ruby: Earned 2,000,000 credits (2,050,605)Cullen LLR Silver: Earned 100,000 credits (104,070)ESP LLR Amethyst: Earned 1,000,000 credits (1,018,623)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (198,013)PPS LLR Amethyst: Earned 1,000,000 credits (1,642,058)PSP LLR Gold: Earned 500,000 credits (897,619)SoB LLR Amethyst: Earned 1,000,000 credits (1,683,694)SR5 LLR Amethyst: Earned 1,000,000 credits (1,002,127)SGS LLR Gold: Earned 500,000 credits (580,961)TRP LLR Amethyst: Earned 1,000,000 credits (1,025,151)Woodall LLR Silver: Earned 100,000 credits (123,136)321 Sieve Bronze: Earned 10,000 credits (20,061)Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,074,349)Generalized Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (167,039)PPS Sieve Sapphire: Earned 20,000,000 credits (45,234,841)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (108,377)TRP Sieve (suspended) Silver: Earned 100,000 credits (100,605)AP 26/27 Amethyst: Earned 1,000,000 credits (1,115,868)GFN Jade: Earned 10,000,000 credits (14,691,481)PSA Jade: Earned 10,000,000 credits (18,340,315)
Message 84353 - Posted: 24 Mar 2015 | 11:59:32 UTC - in response to Message 84334.
Last modified: 24 Mar 2015 | 12:02:50 UTC

Sorry, was the old one..

Downloading new version now.. Give me a few minutes..

Profile Michael GoetzProject donor
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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 84354 - Posted: 24 Mar 2015 | 12:00:52 UTC - in response to Message 84353.

On my i7 4500u laptop

Using llr.exe
Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1
Using zero-padded AVX FFT length 384K, Pass1=384, Pass2=1K
V1 = 4 ; Computing U0...done.

Using llr64.exe
Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1
Using zero-padded FMA3 FFT length 384K, Pass1=256, Pass2=1536
V1 = 4 ; Computing U0...done.

Hope that helps Iain...

Neo


We need to see both the new and the old LLRs. That was with the new LLR?
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321 LLR Ruby: Earned 2,000,000 credits (2,050,605)Cullen LLR Silver: Earned 100,000 credits (104,070)ESP LLR Amethyst: Earned 1,000,000 credits (1,018,623)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (198,013)PPS LLR Amethyst: Earned 1,000,000 credits (1,642,058)PSP LLR Gold: Earned 500,000 credits (897,619)SoB LLR Amethyst: Earned 1,000,000 credits (1,683,694)SR5 LLR Amethyst: Earned 1,000,000 credits (1,002,127)SGS LLR Gold: Earned 500,000 credits (580,961)TRP LLR Amethyst: Earned 1,000,000 credits (1,025,151)Woodall LLR Silver: Earned 100,000 credits (123,136)321 Sieve Bronze: Earned 10,000 credits (20,061)Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,074,349)Generalized Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (167,039)PPS Sieve Sapphire: Earned 20,000,000 credits (45,234,841)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (108,377)TRP Sieve (suspended) Silver: Earned 100,000 credits (100,605)AP 26/27 Amethyst: Earned 1,000,000 credits (1,115,868)GFN Jade: Earned 10,000,000 credits (14,691,481)PSA Jade: Earned 10,000,000 credits (18,340,315)
Message 84355 - Posted: 24 Mar 2015 | 12:24:11 UTC - in response to Message 84354.

Test under 3.8.13

Command line: cllr64.exe -d -q"3752948*2^3752948-1"

Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1
Using zero-padded FMA3 FFT length 384K, Pass1=256, Pass2=1536
V1 = 4 ; Computing U0...done.

Test under 3.8.14

Command line: cllr.exe -d -q"3752948*2^3752948-1"

Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1
Using zero-padded AVX FFT length 384K, Pass1=384, Pass2=1K
V1 = 4 ; Computing U0...done.

(Note: I'm using Windows and did not see a 64 bit build for 3.8.14)

Neo

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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 84358 - Posted: 24 Mar 2015 | 14:05:25 UTC

Thanks, Neo.
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My lucky number is 75898524288+1

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Discovered 2 mega primesFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain StageFound 4 primes in the 2019 Tour de PrimesFound 2 primes in the 2019 Tour de Primes Mountain Stage2020 Tour de Primes most Mountain Stage primesFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2020 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (5,173,611)Cullen LLR Ruby: Earned 2,000,000 credits (2,542,805)ESP LLR Turquoise: Earned 5,000,000 credits (9,593,615)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,621,320)PPS LLR Emerald: Earned 50,000,000 credits (70,346,330)PSP LLR Sapphire: Earned 20,000,000 credits (20,850,520)SoB LLR Jade: Earned 10,000,000 credits (15,031,779)SR5 LLR Sapphire: Earned 20,000,000 credits (26,092,973)SGS LLR Jade: Earned 10,000,000 credits (14,891,127)TRP LLR Jade: Earned 10,000,000 credits (10,001,551)Woodall LLR Ruby: Earned 2,000,000 credits (2,369,390)321 Sieve Ruby: Earned 2,000,000 credits (2,421,223)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,165,870)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,012,635)PPS Sieve Double Silver: Earned 200,000,000 credits (473,599,984)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (727,064)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,187,678)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,614,098)GFN Double Silver: Earned 200,000,000 credits (241,749,972)PSA Emerald: Earned 50,000,000 credits (52,497,368)
Message 84363 - Posted: 24 Mar 2015 | 20:45:17 UTC

Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz [Family 6 Model 69 Stepping 1]

LLR beta Version 3.8.13 for MS Windows 32bit, CONSOLE APPLICATION:

X:\temp\cllr38d>cllr -d -q"3752948*2^3752948-1" Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1 Using zero-padded AVX FFT length 384K, Pass1=384, Pass2=1K V1 = 4 ; Computing U0...done. Starting Lucas-Lehmer loop...


LLR Version 3.8.14 for MS Windows 32bit, CONSOLE APPLICATION:
X:\temp\cllr38e>cllr -d -q"3752948*2^3752948-1" Starting Lucas Lehmer Riesel prime test of 3752948*2^3752948-1 Using zero-padded AVX FFT length 384K, Pass1=384, Pass2=1K V1 = 4 ; Computing U0...done. Starting Lucas-Lehmer loop....

____________

Proud member of Team Aggie the Pew

"Wir müssen wissen. Wir werden wissen."
"We must know, we shall know."
- David Hilbert, 1930

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321 LLR Ruby: Earned 2,000,000 credits (2,050,605)Cullen LLR Silver: Earned 100,000 credits (104,070)ESP LLR Amethyst: Earned 1,000,000 credits (1,018,623)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (198,013)PPS LLR Amethyst: Earned 1,000,000 credits (1,642,058)PSP LLR Gold: Earned 500,000 credits (897,619)SoB LLR Amethyst: Earned 1,000,000 credits (1,683,694)SR5 LLR Amethyst: Earned 1,000,000 credits (1,002,127)SGS LLR Gold: Earned 500,000 credits (580,961)TRP LLR Amethyst: Earned 1,000,000 credits (1,025,151)Woodall LLR Silver: Earned 100,000 credits (123,136)321 Sieve Bronze: Earned 10,000 credits (20,061)Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,074,349)Generalized Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (167,039)PPS Sieve Sapphire: Earned 20,000,000 credits (45,234,841)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (108,377)TRP Sieve (suspended) Silver: Earned 100,000 credits (100,605)AP 26/27 Amethyst: Earned 1,000,000 credits (1,115,868)GFN Jade: Earned 10,000,000 credits (14,691,481)PSA Jade: Earned 10,000,000 credits (18,340,315)
Message 84376 - Posted: 25 Mar 2015 | 11:58:00 UTC - in response to Message 84363.

After seeing Mattozan's results, I downloaded the 3.8.13 MS Windows 32bit Console version.

I re-ran all the tests; I got the same results as Mattozan... and the same results I posted below for the 64 bit version of 3.8.13.

The difference appears to be between the 32-bit and 64-bit versions of 3.8.13

Neo
AtP

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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 84378 - Posted: 25 Mar 2015 | 14:31:13 UTC - in response to Message 84376.

The difference appears to be between the 32-bit and 64-bit versions of 3.8.13


That is the expected behavior and is not of any concern (and wasn't the object of this test).

We've learned what we needed from the tests, thank you! At least under Windows. If anyone has one of those CPUs running Linux it might be worth doing the test under Linux, too.

(If you're interested, what we expected was that the old LLR would use pre-AVX transforms and the new one would use FMA3 (64 bit) or AVX (32 bit). However, the old LLR used AVX/FMA3.)
____________
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Message 84622 - Posted: 5 Apr 2015 | 18:48:51 UTC
Last modified: 5 Apr 2015 | 18:51:34 UTC

Please be aware of this thread:

http://www.mersenneforum.org/showthread.php?t=20156
____________

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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 84626 - Posted: 6 Apr 2015 | 7:49:44 UTC - in response to Message 84622.

Please be aware of this thread:

http://www.mersenneforum.org/showthread.php?t=20156


Thanks Carlos, we are indeed aware this was coming...
____________
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3073428256125*2^1290000-1 is Prime!

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Eliminated 3 conjecture "k"s321 LLR Silver: Earned 100,000 credits (186,594)Cullen LLR Silver: Earned 100,000 credits (106,665)ESP LLR Gold: Earned 500,000 credits (502,416)PPS LLR Gold: Earned 500,000 credits (504,111)PSP LLR Gold: Earned 500,000 credits (513,785)SoB LLR Gold: Earned 500,000 credits (564,944)SR5 LLR Ruby: Earned 2,000,000 credits (2,790,118)SGS LLR Gold: Earned 500,000 credits (501,099)TPS LLR (retired) Bronze: Earned 10,000 credits (46,235)TRP LLR Gold: Earned 500,000 credits (708,706)Woodall LLR Silver: Earned 100,000 credits (133,626)321 Sieve Bronze: Earned 10,000 credits (21,527)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (14,729,132)PPS Sieve Double Bronze: Earned 100,000,000 credits (132,786,707)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (510,317)TRP Sieve (suspended) Gold: Earned 500,000 credits (620,991)AP 26/27 Silver: Earned 100,000 credits (418,876)GFN Amethyst: Earned 1,000,000 credits (1,795,613)PSA Jade: Earned 10,000,000 credits (18,329,123)
Message 84628 - Posted: 6 Apr 2015 | 8:38:05 UTC - in response to Message 84626.

Please be aware of this thread:

http://www.mersenneforum.org/showthread.php?t=20156


Thanks Carlos, we are indeed aware this was coming...


Iain, can you recompile the linux and mac apps? I have done the windows apps but still need the other ones.

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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 84631 - Posted: 6 Apr 2015 | 12:09:49 UTC - in response to Message 84628.

Please be aware of this thread:

http://www.mersenneforum.org/showthread.php?t=20156


Thanks Carlos, we are indeed aware this was coming...


Iain, can you recompile the linux and mac apps? I have done the windows apps but still need the other ones.


Hi Reb,

Jean has not released a new LLR with gwnum 28.6 yet. Until there is an official release, please don't build or distribute old binaries with new libraries. Jean and Mark R (PFGW) have already asked this before when AVX was added to gwnum in 2012. Having unofficial / hacked versions doing the rounds just makes our job a little bit harder if/when bugs are discovered in the future, as it makes it nigh-on impossible to tell which WUs might have been affected.

We will be getting a 'fixed' version of LLR into production at PG as soon as practically possible.

- Iain
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Message 84633 - Posted: 6 Apr 2015 | 12:48:48 UTC
Last modified: 6 Apr 2015 | 12:53:13 UTC

Batalov is running some 14,000 random double-check tests and no RES64 mismatches so far in (from 0.25 to 4 hours run time range). 7 known primes re-confirmed.
Keep watching that thread for updates. If anything is missed here I will chase and post.

Iain Bethune, I was also aware but more worried that this bug would be very likely to happen but Batalov said to me it is a very improbable bug. I was afraid my search would be compromised even now that I restrict to only 4 cores when in the past I had more than 30 cores on my search.

Carlos
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Eliminated 3 conjecture "k"s321 LLR Silver: Earned 100,000 credits (186,594)Cullen LLR Silver: Earned 100,000 credits (106,665)ESP LLR Gold: Earned 500,000 credits (502,416)PPS LLR Gold: Earned 500,000 credits (504,111)PSP LLR Gold: Earned 500,000 credits (513,785)SoB LLR Gold: Earned 500,000 credits (564,944)SR5 LLR Ruby: Earned 2,000,000 credits (2,790,118)SGS LLR Gold: Earned 500,000 credits (501,099)TPS LLR (retired) Bronze: Earned 10,000 credits (46,235)TRP LLR Gold: Earned 500,000 credits (708,706)Woodall LLR Silver: Earned 100,000 credits (133,626)321 Sieve Bronze: Earned 10,000 credits (21,527)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (14,729,132)PPS Sieve Double Bronze: Earned 100,000,000 credits (132,786,707)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (510,317)TRP Sieve (suspended) Gold: Earned 500,000 credits (620,991)AP 26/27 Silver: Earned 100,000 credits (418,876)GFN Amethyst: Earned 1,000,000 credits (1,795,613)PSA Jade: Earned 10,000,000 credits (18,329,123)
Message 84636 - Posted: 6 Apr 2015 | 16:32:08 UTC - in response to Message 84631.

Please be aware of this thread:

http://www.mersenneforum.org/showthread.php?t=20156


Thanks Carlos, we are indeed aware this was coming...


Iain, can you recompile the linux and mac apps? I have done the windows apps but still need the other ones.


Hi Reb,

Jean has not released a new LLR with gwnum 28.6 yet. Until there is an official release, please don't build or distribute old binaries with new libraries. Jean and Mark R (PFGW) have already asked this before when AVX was added to gwnum in 2012. Having unofficial / hacked versions doing the rounds just makes our job a little bit harder if/when bugs are discovered in the future, as it makes it nigh-on impossible to tell which WUs might have been affected.

We will be getting a 'fixed' version of LLR into production at PG as soon as practically possible.

- Iain


I have sent Jean the fixed versions but wait until I get an answer. The chance of the bug should be very small so I could run the current 3.8.13 furthermore.

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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Turquoise: Earned 5,000,000 credits (7,173,525)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,325,207)TRP LLR Gold: Earned 500,000 credits (626,755)Woodall LLR Silver: Earned 100,000 credits (122,944)321 Sieve Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,855,975)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,583,960)GFN Sapphire: Earned 20,000,000 credits (23,334,026)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 84682 - Posted: 8 Apr 2015 | 8:22:18 UTC - in response to Message 84636.
Last modified: 8 Apr 2015 | 8:23:21 UTC

According to http://www.mersenneforum.org/showthread.php?t=20137- last post in thread - it looks like bug is fixed and 3.8.14 is released !
And also 3.8.15 will come soon :)
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 84683 - Posted: 8 Apr 2015 | 8:45:30 UTC - in response to Message 84682.

According to http://www.mersenneforum.org/showthread.php?t=20137- last post in thread - it looks like bug is fixed and 3.8.14 is released !
And also 3.8.15 will come soon :)

So now we have two "official" 3.8.14 binaries floating in the wild, first have fatal bug and second one is fixed. Both have same version number and completely indistinguishable. Just Great. Exactly what Iain warned against. :-(

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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Turquoise: Earned 5,000,000 credits (7,173,525)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,325,207)TRP LLR Gold: Earned 500,000 credits (626,755)Woodall LLR Silver: Earned 100,000 credits (122,944)321 Sieve Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,855,975)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,583,960)GFN Sapphire: Earned 20,000,000 credits (23,334,026)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 84684 - Posted: 8 Apr 2015 | 8:55:25 UTC - in response to Message 84683.

According to http://www.mersenneforum.org/showthread.php?t=20137- last post in thread - it looks like bug is fixed and 3.8.14 is released !
And also 3.8.15 will come soon :)

So now we have two "official" 3.8.14 binaries floating in the wild, first have fatal bug and second one is fixed. Both have same version number and completely indistinguishable. Just Great. Exactly what Iain warned against. :-(


Stream you are wrong...

--all the binaries are updated accordingly.... so there is only one version, fixed one!
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321 LLR Gold: Earned 500,000 credits (597,175)Cullen LLR Amethyst: Earned 1,000,000 credits (1,355,381)ESP LLR Turquoise: Earned 5,000,000 credits (5,048,594)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,564,412)PPS LLR Amethyst: Earned 1,000,000 credits (1,025,115)PSP LLR Sapphire: Earned 20,000,000 credits (28,367,849)SoB LLR Jade: Earned 10,000,000 credits (16,215,329)SR5 LLR Turquoise: Earned 5,000,000 credits (5,189,992)SGS LLR Amethyst: Earned 1,000,000 credits (1,244,067)TRP LLR Turquoise: Earned 5,000,000 credits (5,169,405)Woodall LLR Amethyst: Earned 1,000,000 credits (1,070,956)321 Sieve Bronze: Earned 10,000 credits (20,003)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (200,371)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,645,025)PPS Sieve Turquoise: Earned 5,000,000 credits (7,536,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,017,144)TRP Sieve (suspended) Gold: Earned 500,000 credits (554,946)AP 26/27 Ruby: Earned 2,000,000 credits (3,577,848)GFN Emerald: Earned 50,000,000 credits (97,047,976)PSA Ruby: Earned 2,000,000 credits (4,606,694)
Message 84687 - Posted: 8 Apr 2015 | 11:30:21 UTC
Last modified: 8 Apr 2015 | 11:31:27 UTC

The binaries on Jean's site are now all the 'fixed' version , using gwnum 28.6. It is correct to say that there is no way to tell the difference between 3.8.14 before or after the fix. However, the buggy version of 3.8.14 has never been shipped via BOINC by PG, or in the PRPNet packages.

Since the incidence of the bug is very low, and the number of people who used a potentially buggy version of 3.8.14 is also very low, I think we just have to accept that there is a very, very small risk as a result of this. We are of course still going back through older PG results to determine what action to take, and hope to be releasing 3.8.14 on BOINC soon.

I have discussed with Jean, and we hope to have future versions of LLR reporting the gwnum version as well as the LLR version (similarly to PFGW).

- Iain
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 84984 - Posted: 20 Apr 2015 | 10:18:20 UTC

Look like I found another LLR/GWNUM bug...

The input was about 7500 very small workunits (n < 300K), I has their RES64's made by SSE or Pentium 4 cores with LLR 3.8.13, so I re-run them on AVX and compared to see will "AVX bug" appear or not. One candidate mismatched.

--- _all0.avx 2015-04-20 06:26:20.000000000 +0000 +++ _all0.sse 2015-04-20 07:29:18.111902600 +0000 @@ -6404,7 +6404,7 @@ -55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time +55459*2^159718+1 is not prime. Proth RES64: AC40ACBECD7F8705 Time

More details:

Starting Proth prime test of 55459*2^159718+1 Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3 55459*2^159718+1 is not prime. Proth RES64: AC40ACBECD7F8705 Time : 26.292 sec Starting Proth prime test of 55459*2^159718+1 Using all-complex FMA3 FFT length 12K, Pass1=256, Pass2=48, a = 3 55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 12.351 sec.

Of course, it's same on different computers.

Ok, now trying latest LLR which should have AVX bug fixed:

./sllr64 Primality Testing of k*b^n+/-1 Program - Version 3.8.14 Starting Proth prime test of 55459*2^159718+1 Using all-complex FMA3 FFT length 12K, Pass1=256, Pass2=48, a = 3 55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 12.330 sec.

What the...? Another AVX bug? A bug in Pentium 4 FFT code?

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321 LLR Gold: Earned 500,000 credits (656,177)Cullen LLR Silver: Earned 100,000 credits (457,297)ESP LLR Silver: Earned 100,000 credits (437,502)PPS LLR Amethyst: Earned 1,000,000 credits (1,256,334)SoB LLR Amethyst: Earned 1,000,000 credits (1,246,109)SR5 LLR Ruby: Earned 2,000,000 credits (2,193,129)SGS LLR Silver: Earned 100,000 credits (101,658)Woodall LLR Silver: Earned 100,000 credits (292,129)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (32,498)PPS Sieve Jade: Earned 10,000,000 credits (15,515,229)AP 26/27 Amethyst: Earned 1,000,000 credits (1,491,867)GFN Ruby: Earned 2,000,000 credits (4,245,870)PSA Silver: Earned 100,000 credits (101,309)
Message 84985 - Posted: 20 Apr 2015 | 11:49:07 UTC - in response to Message 84984.


What the...? Another AVX bug? A bug in Pentium 4 FFT code?

Could be an error in one of the runs (it happens!). Can you reproduce both the residues? If so, definitely an issue in one (or both!) the transforms.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 84986 - Posted: 20 Apr 2015 | 12:08:17 UTC - in response to Message 84985.
Last modified: 20 Apr 2015 | 12:09:56 UTC


What the...? Another AVX bug? A bug in Pentium 4 FFT code?

Could be an error in one of the runs (it happens!). Can you reproduce both the residues? If so, definitely an issue in one (or both!) the transforms.

I've already mentioned that it was tested on few computers and it's reproducible.
AVX was tested on my home intel i7 and office server with i3.
P4 transform was tested on two office computers (first is my own, second is one of servers), guaranteed to be 100% stable.
I also have AMD notebook so I'll check third transform few hours later.
Everybody could check this workunit and compare RES64 himself faster then I'm writing this message, it takes only 10 seconds.

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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (7,878,645)Cullen LLR Turquoise: Earned 5,000,000 credits (8,994,582)ESP LLR Jade: Earned 10,000,000 credits (11,742,728)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,214,657)PPS LLR Jade: Earned 10,000,000 credits (16,398,910)PSP LLR Turquoise: Earned 5,000,000 credits (9,409,109)SoB LLR Jade: Earned 10,000,000 credits (12,074,463)SR5 LLR Sapphire: Earned 20,000,000 credits (23,096,513)SGS LLR Turquoise: Earned 5,000,000 credits (7,355,305)TPS LLR (retired) Bronze: Earned 10,000 credits (76,372)TRP LLR Jade: Earned 10,000,000 credits (15,711,883)Woodall LLR Turquoise: Earned 5,000,000 credits (8,519,621)321 Sieve Jade: Earned 10,000,000 credits (11,111,528)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,264)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,347)PPS Sieve Double Silver: Earned 200,000,000 credits (392,097,930)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (3,177,104)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,556,644)AP 26/27 Double Bronze: Earned 100,000,000 credits (139,467,208)GFN Double Silver: Earned 200,000,000 credits (408,091,997)PSA Double Amethyst: Earned 1,000,000,000 credits (1,079,860,880)
Message 84987 - Posted: 20 Apr 2015 | 12:24:39 UTC - in response to Message 84986.
Last modified: 20 Apr 2015 | 12:25:15 UTC

Tested on C2D T8100:

LLR 3.8.14 Windows 32bit:

Starting Proth prime test of 55459*2^159718+1 Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3 55459*2^159718+1 is not prime. Proth RES64: AC40ACBECD7F8705 Time : 41.186 sec.


LLR 3.8.14 Windows 64bit:
Starting Proth prime test of 55459*2^159718+1 Using all-complex type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3 55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 37.961 sec.


Same mismatch between 32bit and 64bit for LLR 3.8.13 and 3.8.9.

Old LLR 3.5 (32bit only):
Starting Proth prime test of 55459*2^159718+1 Using FFT length 16K, a = 3 55459*2^159718+1, bit: 10000 / 159733 [6.26%]. Time per bit: 0.372 ms. ... 55459*2^159718+1 is not prime. RES64: D71EC0AAC1D6CF60 Time: 58.281 sec.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 84990 - Posted: 20 Apr 2015 | 12:43:04 UTC

pschoefer, thanks! 32-bit "Pentium4 type-0" transform becomes main suspect. (as can be seen in your logs, 64-bits LLR is using different transform method).

In my tests, all P4 tests were on 32-bit Windows, all AVX tests - 64-bit Linux.

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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 84994 - Posted: 20 Apr 2015 | 14:16:20 UTC

Haswell 64 bit Windows FMA3: (My home machine.) LLR 3.8.14

Using all-complex FMA3 FFT length 12K, Pass1=256, Pass2=48, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 14.568 sec.

PrimeGrid's www server: (64 bit Linux, no AVX) LLR 3.8.13

Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 28.095 sec.

Ancient AMD 32 bit Sempron: (32 bit Windows) LLR 3.8.9

Using all-complex x87 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 147.738 sec.

Ancient AMD 32 bit Sempron: (32 bit Windows) LLR 3.8.13:

Using all-complex x87 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 101.796 sec.

____________
My lucky number is 75898524288+1

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 84996 - Posted: 20 Apr 2015 | 15:44:12 UTC - in response to Message 84994.


PrimeGrid's www server: (64 bit Linux, no AVX) LLR 3.8.13

Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 28.095 sec.

Are you sure? I just rebooted to Linux on my office P4 and cannot get "Pentium 4 type-0" transform from 64-bit llr, regardles of version (3.8.13 or 3.18.14). It uses "all-complex type-0". Same for pschoefer's tests on Windows. Did you tried 32-bit executable (statically linked) on this server?

Linux tests on my PC. CPU: "Pentium(R) Dual-Core CPU E5300 @ 2.60GHz"

LLR 3.8.14 64-bit

Starting Proth prime test of 55459*2^159718+1
Using all-complex type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 26.747 sec.

LLR 3.8.14 32-bit

Starting Proth prime test of 55459*2^159718+1
Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: AC40ACBECD7F8705 Time : 28.438 sec.

It becomes more and more evident that at least one specific transfer ("all-complex Pentium4 type-0"), probably used only in 32-bit versions of LLR, is broken.

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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 84998 - Posted: 20 Apr 2015 | 15:57:20 UTC - in response to Message 84996.


PrimeGrid's www server: (64 bit Linux, no AVX) LLR 3.8.13

Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 28.095 sec.

Are you sure?


I'm not clear what you're asking when you said "Are you sure"?

I'm sure it was run on the www.primegrid.com server.

I'm sure it's 64 bit Linux.

I'm sure it wasn't using AVX (the VM hypervisor doesn't support AVX and you can see what transform it used).

I'm sure it was LLR 3.8.13 (I ran ./llr -V right before the test).

And I'm sure that's the output from LLR.

Getting different transforms on different CPUs is common. We pre-test most LLR candidates on the server to see what size FFT it will use (we use that in the credit calculation), and it's very common for the server to use different FFT sizes than my home machine will use.
____________
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 84999 - Posted: 20 Apr 2015 | 16:49:46 UTC - in response to Message 84998.


PrimeGrid's www server: (64 bit Linux, no AVX) LLR 3.8.13

Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 28.095 sec.

Are you sure?


I'm not clear what you're asking when you said "Are you sure"?

"English is my tenth language. It does not mean that I know eight more, it just to show how big the gap is" :)
Ok, thanks for clarification. Actually it meant that you result was different from ours, so I've asked to double-check everything.

It's still not clear which LLR executable you've used - 32-bit or 64-bit, it could be critical. "./llr" mean nothing for me, original executables are named "sllr" and "sll64". If possible, please try statically linked 32-bit linux executable: http://jpenne.free.fr/llr3/llr38eslinux.zip

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Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,691,081)Cullen LLR Turquoise: Earned 5,000,000 credits (5,031,868)ESP LLR Turquoise: Earned 5,000,000 credits (5,064,082)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,038,750)PPS LLR Turquoise: Earned 5,000,000 credits (5,000,220)PSP LLR Turquoise: Earned 5,000,000 credits (7,674,374)SoB LLR Sapphire: Earned 20,000,000 credits (42,604,648)SR5 LLR Jade: Earned 10,000,000 credits (11,829,173)SGS LLR Ruby: Earned 2,000,000 credits (2,410,767)TRP LLR Ruby: Earned 2,000,000 credits (2,291,092)Woodall LLR Turquoise: Earned 5,000,000 credits (5,046,412)321 Sieve Jade: Earned 10,000,000 credits (10,057,614)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,005,451)PPS Sieve Emerald: Earned 50,000,000 credits (52,042,965)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Jade: Earned 10,000,000 credits (10,742,251)GFN Emerald: Earned 50,000,000 credits (50,000,251)PSA Double Gold: Earned 500,000,000 credits (728,547,693)
Message 85000 - Posted: 20 Apr 2015 | 16:54:22 UTC
Last modified: 20 Apr 2015 | 18:03:15 UTC

Confirmed the bad residue. Using 32-bit statically linked linux app on my 64-bit linux (latest debian). Processor is a Xeon X3430.
http://www.primegrid.com/show_host_detail.php?hostid=213824

./sllr -V
Primality Testing of k*b^n+/-1 Program - Version 3.8.14

./sllr -d -q"55459*2^159718+1" >bad 2>&1
Starting Proth prime test of 55459*2^159718+1
Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: AC40ACBECD7F8705 Time : 32.926 sec.

./sllr -d -oFFT_Increment=1 -q"55459*2^159718+1" >plus1 2>&1
Starting Proth prime test of 55459*2^159718+1
Using all-complex type-1 FFT length 16K, Pass1=64, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 41.474 sec.

./sllr64 -V
Primality Testing of k*b^n+/-1 Program - Version 3.8.14

./sllr64 -d -q"55459*2^159718+1" >good 2>&1
Starting Proth prime test of 55459*2^159718+1
Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 33.235 sec.

ls -l s*
-rwxr-xr-x 1 jim jim 31535730 Apr 6 21:11 sllr
-rwxr-xr-x 1 jim jim 36650236 Apr 6 19:42 sllr64

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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 85001 - Posted: 20 Apr 2015 | 17:04:39 UTC - in response to Message 84999.


PrimeGrid's www server: (64 bit Linux, no AVX) LLR 3.8.13

Using all-complex Pentium4 type-0 FFT length 12K, Pass1=48, Pass2=256, a = 3
55459*2^159718+1 is not prime. Proth RES64: D71EC0AAC1D6CF60 Time : 28.095 sec.

Are you sure?


I'm not clear what you're asking when you said "Are you sure"?

"English is my tenth language. It does not mean that I know eight more, it just to show how big the gap is" :)
Ok, thanks for clarification. Actually it meant that you result was different from ours, so I've asked to double-check everything.

It's still not clear which LLR executable you've used - 32-bit or 64-bit, it could be critical. "./llr" mean nothing for me, original executables are named "sllr" and "sll64". If possible, please try statically linked 32-bit linux executable: http://jpenne.free.fr/llr3/llr38eslinux.zip



That's the 64 bit static executable.

My results do not contradict yours because I wasn't using a setup that uses that transform.


____________
My lucky number is 75898524288+1

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Found 5 primes in the 2021 Tour de PrimesFound 5 mega primes in the 2021 Tour de PrimesThe "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 6 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (16,008,485)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,252,256)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,911,985)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (76,733,355)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 85002 - Posted: 20 Apr 2015 | 17:17:50 UTC

I've posted about it on the Mersenne forums.
____________
My lucky number is 75898524288+1

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (11,055,307)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,215)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (53,545,357)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 85004 - Posted: 20 Apr 2015 | 17:32:56 UTC

I've run LLR with -oInterimResidues=1 on two systems. The difference appeared on bit 29699:

55459*2^159718+1 interim residue 615F9B1FF5F381BC at bit 29698 -55459*2^159718+1 interim residue E6F61E91356CD626 at bit 29699 (amd) +55459*2^159718+1 interim residue E6DDEB41A52F141C at bit 29699 (p4)

Probably nature of this bug is not the same as in "avx" case (routine affected by avx bug was used only in first and last 30 iterations, now it happened in the middle of calculations).

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Posts: 1378
ID: 306875
Credit: 21,623,822
RAC: 0
Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Turquoise: Earned 5,000,000 credits (9,594,179)PSP LLR Silver: Earned 100,000 credits (212,242)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (105,212)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Amethyst: Earned 1,000,000 credits (1,674,106)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 85030 - Posted: 21 Apr 2015 | 18:10:45 UTC - in response to Message 84984.

Nice testing there, stream. /JeppeSN

Message boards : Number crunching : LLR Version 3.8.14 released

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