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Message boards : AP26 - AP27 Search : Need Testers new Linux64 SIMD-SSE2 app

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Joined: 5 Apr 09
Posts: 216
ID: 38042
Credit: 840,231,450
RAC: 10,705
Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 17975 - Posted: 14 Sep 2009 | 1:21:25 UTC
Last modified: 14 Sep 2009 | 1:38:55 UTC

-For Linux 64bit Intel or AMD-

I have converted part of the AP26 application to SIMD SSE2 code.

The application is here: http://www.megaupload.com/?d=SCEBSEOE

I would like to know the speeds of various kinds of processors. If you can run the application with the computer idle with the command line:

time ./ap26-x86_64sse2-linux 366384 366384 0

and compare the results with this file: http://www.megaupload.com/?d=GKOG5SSR

using the command:

cmp SOL-AP26.txt TEST-366384.txt

The results should match exactly. Please post your speeds and results compared to the current version 1.03 official application. Thanks!

-Bryan Little
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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 17976 - Posted: 14 Sep 2009 | 1:25:35 UTC

Test computer: Intel Core2 Quad Q6600 @ 2.4ghz

new app: 3m 42s
1.03 app: 4m 30s

results file matches
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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 17977 - Posted: 14 Sep 2009 | 2:24:23 UTC
Last modified: 14 Sep 2009 | 2:48:00 UTC

Ok after testing my AMD computer I realized I was getting some register spillover and cut the SIMD code back some. Updated version 2 is here:

http://www.megaupload.com/?d=OSXO7YME

Original version in post 1 has been removed.


Test Computer: AMD Athlon 64x2 6000+ @ 3.0ghz

new app: 3m 22s
1.03 app: 4m 2s

results file matches

---------------------------------------------------------------------------------
Test computer: Intel Core2 Quad Q6600 @ 2.4ghz

new app: 3m 13s
1.03 app: 4m 30s

results file matches
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Found 1 prime in the 2019 Tour de Primes321 LLR Amethyst: Earned 1,000,000 credits (1,310,491)Cullen LLR Amethyst: Earned 1,000,000 credits (1,065,659)ESP LLR Amethyst: Earned 1,000,000 credits (1,875,010)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,216,209)PPS LLR Turquoise: Earned 5,000,000 credits (5,212,863)PSP LLR Amethyst: Earned 1,000,000 credits (1,323,642)SoB LLR Turquoise: Earned 5,000,000 credits (7,603,584)SR5 LLR Amethyst: Earned 1,000,000 credits (1,891,772)SGS LLR Amethyst: Earned 1,000,000 credits (1,163,706)TRP LLR Ruby: Earned 2,000,000 credits (3,832,495)Woodall LLR Amethyst: Earned 1,000,000 credits (1,323,182)321 Sieve Ruby: Earned 2,000,000 credits (2,432,077)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,967,439)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,137,451)PPS Sieve Double Silver: Earned 200,000,000 credits (266,868,275)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (627,444)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (3,956,401)AP 26/27 Jade: Earned 10,000,000 credits (15,856,233)GFN Emerald: Earned 50,000,000 credits (64,937,531)PSA Emerald: Earned 50,000,000 credits (87,901,787)
Message 17984 - Posted: 14 Sep 2009 | 16:16:27 UTC
Last modified: 14 Sep 2009 | 16:21:38 UTC

Testcomputer: AMD Phenom @ 2.2 GHz running ubuntu linux 64-bit (server) - klick

new app

stdout wrote:
real 3m43.335s
user 3m41.230s
sys 0m0.010s


regular primegrid app
stdout wrote:
real 5m1.110s
user 4m58.820s
sys 0m0.000s


result file matches
____________
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my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

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Found 1 prime in the 2019 Tour de Primes321 LLR Amethyst: Earned 1,000,000 credits (1,310,491)Cullen LLR Amethyst: Earned 1,000,000 credits (1,065,659)ESP LLR Amethyst: Earned 1,000,000 credits (1,875,010)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,216,209)PPS LLR Turquoise: Earned 5,000,000 credits (5,212,863)PSP LLR Amethyst: Earned 1,000,000 credits (1,323,642)SoB LLR Turquoise: Earned 5,000,000 credits (7,603,584)SR5 LLR Amethyst: Earned 1,000,000 credits (1,891,772)SGS LLR Amethyst: Earned 1,000,000 credits (1,163,706)TRP LLR Ruby: Earned 2,000,000 credits (3,832,495)Woodall LLR Amethyst: Earned 1,000,000 credits (1,323,182)321 Sieve Ruby: Earned 2,000,000 credits (2,432,077)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,967,439)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,137,451)PPS Sieve Double Silver: Earned 200,000,000 credits (266,868,275)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (627,444)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (3,956,401)AP 26/27 Jade: Earned 10,000,000 credits (15,856,233)GFN Emerald: Earned 50,000,000 credits (64,937,531)PSA Emerald: Earned 50,000,000 credits (87,901,787)
Message 17985 - Posted: 14 Sep 2009 | 16:30:39 UTC

Testcomputer: Intel Core2Duo @2.2 GHz running ubuntu linux 64-bit (server) - klick

new app

stdout wrote:
real 3m31.543s
user 3m28.920s
sys 0m0.070s


regular primegrid app
stdout wrote:
real 4m57.438s
user 4m54.470s
sys 0m0.110s


result file matches
____________
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my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

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321 LLR Bronze: Earned 10,000 credits (10,190)Cullen LLR Bronze: Earned 10,000 credits (23,978)PPS LLR Bronze: Earned 10,000 credits (50,765)PSP LLR Bronze: Earned 10,000 credits (11,013)SoB LLR Bronze: Earned 10,000 credits (16,508)SR5 LLR Bronze: Earned 10,000 credits (10,703)SGS LLR Bronze: Earned 10,000 credits (10,005)TRP LLR Bronze: Earned 10,000 credits (10,303)Woodall LLR Bronze: Earned 10,000 credits (11,537)321 Sieve Bronze: Earned 10,000 credits (21,060)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (22,668)PPS Sieve Silver: Earned 100,000 credits (260,686)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (40,185)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,280)AP 26/27 Silver: Earned 100,000 credits (149,718)GFN Bronze: Earned 10,000 credits (45,568)PSA Silver: Earned 100,000 credits (271,875)
Message 17986 - Posted: 14 Sep 2009 | 16:50:01 UTC

Test computer: Intel C2D Mobile T7500 @ 2.2GHz

new app: 3m 31s
1.03 app: 4m 56s

results file matches

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,309,957)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (8,722,055)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,945,539)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (33,199,226)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (39,501,491)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 17992 - Posted: 14 Sep 2009 | 21:54:23 UTC

I can't download the app:

Unfortunately, the link you have clicked is not available. Reasons for this may include: - Invalid link - The file has been deleted because it was violating our Terms of service.

____________

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Joined: 27 Sep 08
Posts: 19
ID: 29724
Credit: 3,454,807
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (65,964)PSP LLR Bronze: Earned 10,000 credits (10,073)SGS LLR Bronze: Earned 10,000 credits (10,173)321 Sieve Bronze: Earned 10,000 credits (20,735)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (25,774)PPS Sieve Amethyst: Earned 1,000,000 credits (1,220,610)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (124,156)TRP Sieve (suspended) Bronze: Earned 10,000 credits (29,082)AP 26/27 Silver: Earned 100,000 credits (402,462)PSA Amethyst: Earned 1,000,000 credits (1,529,538)
Message 17993 - Posted: 14 Sep 2009 | 22:16:19 UTC

Test computer: Intel C2Q Q6600 @ 3.15 GHz running ubuntu linux 64-bit

New App
real 2m26.771s
user 2m24.769s
sys 0m0.008s


1.03 App
real 3m25.230s
user 3m23.241s
sys 0m0.012s

result file matches

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Credit: 840,231,450
RAC: 10,705
Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 17994 - Posted: 14 Sep 2009 | 22:31:45 UTC - in response to Message 17992.

I can't download the app:


Sorry, I changed the application location after 60 minutes of creating this thread, so I was unable to edit it, see post 3:

http://www.megaupload.com/?d=OSXO7YME

Original version in post 1 has been removed.



Thanks for all who have tested the application so far, results are looking very good. It's good to see AMD processors running faster, also. This app would be able to be used as official if Rytis wants to, as all Intel and AMD 64bit processors have SSE2. This is a BOINC-ready application built and linked static with Intel Compiler 11.1.


Does anyone have a 64bit Pentium 4 to test? It would be interesting to see the speed increase.
____________

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Found 1 prime in the 2019 Tour de Primes321 LLR Amethyst: Earned 1,000,000 credits (1,310,491)Cullen LLR Amethyst: Earned 1,000,000 credits (1,065,659)ESP LLR Amethyst: Earned 1,000,000 credits (1,875,010)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,216,209)PPS LLR Turquoise: Earned 5,000,000 credits (5,212,863)PSP LLR Amethyst: Earned 1,000,000 credits (1,323,642)SoB LLR Turquoise: Earned 5,000,000 credits (7,603,584)SR5 LLR Amethyst: Earned 1,000,000 credits (1,891,772)SGS LLR Amethyst: Earned 1,000,000 credits (1,163,706)TRP LLR Ruby: Earned 2,000,000 credits (3,832,495)Woodall LLR Amethyst: Earned 1,000,000 credits (1,323,182)321 Sieve Ruby: Earned 2,000,000 credits (2,432,077)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,967,439)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,137,451)PPS Sieve Double Silver: Earned 200,000,000 credits (266,868,275)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (627,444)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (3,956,401)AP 26/27 Jade: Earned 10,000,000 credits (15,856,233)GFN Emerald: Earned 50,000,000 credits (64,937,531)PSA Emerald: Earned 50,000,000 credits (87,901,787)
Message 17999 - Posted: 15 Sep 2009 | 15:10:18 UTC - in response to Message 17994.

Does anyone have a 64bit Pentium 4 to test? It would be interesting to see the speed increase.

me not - sorry

am I right? you used SIMD to run more in parallel ?? does this means a increase of temps, because of more parallel work on cpu ??
____________
Sysadm@Nbg
my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,309,957)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (8,722,055)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,945,539)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (33,199,226)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (39,501,491)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 18002 - Posted: 15 Sep 2009 | 15:44:14 UTC - in response to Message 17994.

Does anyone have a 64bit Pentium 4 to test? It would be interesting to see the speed increase.


I have a 64bit Pentium D - I will try to test this next time I can get to it.

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18004 - Posted: 15 Sep 2009 | 16:54:30 UTC - in response to Message 17999.


am I right? you used SIMD to run more in parallel ?? does this means a increase of temps, because of more parallel work on cpu ??


More work in parallel AND 16 more registers are available to the application means less spill from registers to cache. The code changes were made in accessing the OKOK arrays in SITO.H, which is in an inner-most loop that the program spends considerable time in.

I do not know about any increases in CPU temperature. Since SSE2 is using a part of the CPU that wasn't being used much before, then possibly. Previous applications only used compiler-generated SSE2 vectorization for setting up the OK arrays, which is only done 3 times per workunit. So really, no major speed increase until now, where SSE2 was manually applied to more important code that the compiler cannot auto-vectorize.
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Credit: 214,150,414
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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,309,957)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (8,722,055)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,945,539)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (33,199,226)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (39,501,491)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 18013 - Posted: 16 Sep 2009 | 11:05:14 UTC

Ok - here we go:

Intel(R) Pentium(R) D CPU 3.00GHz Ubuntu 9.04 amd64

ap26-x86_64sse2-linux_v2
344.70 user
0.05 system
5:47.29 elapsed

primegrid_ap26_1.03_x86_64-pc-linux-gnu
411.79 user
0.02 system
6:54.29 elapsed

Results matched

I'll run this on these when I can get to them unless you say you don't need them:

AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ @ 2.10GHz Ubuntu 8.04 amd64
AMD Athlon(tm) 64 X2 Dual Core Processor 3600+ @ 1.90GHz Ubuntu 9.04 amd64
Intel Pentium(R) Dual-Core CPU E5300 @ 2.60GHz Ubuntu 9.04 amd64
Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz Ubuntu 9.04 amd64

____________

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18027 - Posted: 16 Sep 2009 | 16:34:11 UTC - in response to Message 18013.

Thanks for checking the Pentium D. Excellent results.

Don't really need the others to be tested, we have at least one of every chip architecture tested already. Thank you.
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Discovered 1 Wall-Sun-Sun prime321 LLR Silver: Earned 100,000 credits (104,475)Cullen LLR Silver: Earned 100,000 credits (291,372)ESP LLR Bronze: Earned 10,000 credits (18,156)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (15,259)PPS LLR Silver: Earned 100,000 credits (113,978)PSP LLR Silver: Earned 100,000 credits (116,517)SoB LLR Silver: Earned 100,000 credits (282,655)SR5 LLR Bronze: Earned 10,000 credits (14,071)SGS LLR Silver: Earned 100,000 credits (100,082)TPS LLR (retired) Silver: Earned 100,000 credits (111,607)TRP LLR Jade: Earned 10,000,000 credits (18,232,983)Woodall LLR Silver: Earned 100,000 credits (101,463)321 Sieve Silver: Earned 100,000 credits (201,501)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (214,653)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (14,200)PPS Sieve Silver: Earned 100,000 credits (491,193)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (200,232)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,453,872)AP 26/27 Silver: Earned 100,000 credits (473,058)GFN Silver: Earned 100,000 credits (184,089)PSA Bronze: Earned 10,000 credits (97,541)
Message 18028 - Posted: 16 Sep 2009 | 16:37:47 UTC

I'm making this version public. Thanks to everyone.
____________

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321 LLR Jade: Earned 10,000,000 credits (10,043,076)Cullen LLR Jade: Earned 10,000,000 credits (14,228,684)ESP LLR Sapphire: Earned 20,000,000 credits (20,115,673)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,124,061)PPS LLR Emerald: Earned 50,000,000 credits (54,965,047)PSP LLR Jade: Earned 10,000,000 credits (15,927,756)SoB LLR Jade: Earned 10,000,000 credits (10,053,795)SR5 LLR Sapphire: Earned 20,000,000 credits (20,710,959)SGS LLR Jade: Earned 10,000,000 credits (10,404,749)TRP LLR Sapphire: Earned 20,000,000 credits (20,743,624)Woodall LLR Sapphire: Earned 20,000,000 credits (21,804,003)321 Sieve Silver: Earned 100,000 credits (200,220)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,710,149)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,184)PPS Sieve Emerald: Earned 50,000,000 credits (57,182,910)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,251,279)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (3,572,416)AP 26/27 Gold: Earned 500,000 credits (543,507)GFN Sapphire: Earned 20,000,000 credits (21,199,917)PSA Double Silver: Earned 200,000,000 credits (248,258,813)
Message 18030 - Posted: 16 Sep 2009 | 17:44:37 UTC - in response to Message 18028.

All I can say is WOW!

Even on this ol' dinosaur - AMD Athlon(tm) 64 Processor 3000+ [Ubuntu 9.04] this makes for one heck of an improvement in run-time.

A BOINC managed w/u with 1.03 app averaged 922 seconds; with the 1.04 app the BOINC managed (and happily validated) w/u completed in 720 seconds.


____________
There's someone in our head but it's not us.

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,309,957)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (8,722,055)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,945,539)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (33,199,226)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (39,501,491)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 18032 - Posted: 16 Sep 2009 | 19:32:41 UTC

Good stuff all round!

Does the 32bit version have any cpu checking that would allow use of SSE2 or SSE if the chip supported it?
Or is the app not structured that way? (or has this already been done?)
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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18038 - Posted: 16 Sep 2009 | 22:41:11 UTC - in response to Message 18032.
Last modified: 16 Sep 2009 | 22:44:37 UTC

Good stuff all round!

Yes, right now Linux 64-bit is about twice as fast as Winows 64bit app on Intel Core2 :)


Does the 32bit version have any cpu checking that would allow use of SSE2 or SSE if the chip supported it?
Or is the app not structured that way? (or has this already been done?)


I plan to work on a 32bit version, without dropping support for older, non-SSE processors.
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321 LLR Bronze: Earned 10,000 credits (10,190)Cullen LLR Bronze: Earned 10,000 credits (23,978)PPS LLR Bronze: Earned 10,000 credits (50,765)PSP LLR Bronze: Earned 10,000 credits (11,013)SoB LLR Bronze: Earned 10,000 credits (16,508)SR5 LLR Bronze: Earned 10,000 credits (10,703)SGS LLR Bronze: Earned 10,000 credits (10,005)TRP LLR Bronze: Earned 10,000 credits (10,303)Woodall LLR Bronze: Earned 10,000 credits (11,537)321 Sieve Bronze: Earned 10,000 credits (21,060)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (22,668)PPS Sieve Silver: Earned 100,000 credits (260,686)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (40,185)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,280)AP 26/27 Silver: Earned 100,000 credits (149,718)GFN Bronze: Earned 10,000 credits (45,568)PSA Silver: Earned 100,000 credits (271,875)
Message 18092 - Posted: 19 Sep 2009 | 0:21:03 UTC

Since this new app was introduced I've started getting some errored out workunits (roughly 1 every 20).

process exited with code 193 (0xc1, -63) </message> <stderr_txt> SIGSEGV: segmentation violation

Is anyone else noticing something similar or is my laptop cracking up?

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18093 - Posted: 19 Sep 2009 | 2:02:01 UTC - in response to Message 18092.
Last modified: 19 Sep 2009 | 2:09:57 UTC

Any idea what temperatures the CPU is running?

just checked my 3 hosts and I have one wu that had a similar error.
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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,309,957)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (8,722,055)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,945,539)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (33,199,226)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (39,501,491)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 18096 - Posted: 19 Sep 2009 | 8:33:55 UTC

SEGV normally means a pointer to invalid memory space - often a programming error (ie ptr to 0 or -1) but sometimes caused by memory corruption due to temperature or similar.
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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18100 - Posted: 19 Sep 2009 | 17:35:14 UTC
Last modified: 19 Sep 2009 | 17:38:24 UTC

If this shows to be a problem, then GCC compiled app can be tested.

Since the SSE2 code is very simple (about 45 lines of code), I don't think that's the problem. I think the problem may be with the binary generated by the Intel Compiler. I have compiled with GCC 4.3.2 and the results compared to PrimeGrid's GCC compiled app and various others:

--------------------------------------------------------------
CPU: Intel Core2 Quad Q6600 @ 2.4ghz

primegrid_ap26_1.00_x86_64-pc-linux-gnu : 5m 23s
Dec '08 source compiled with GCC 4.3.2: 6m 7s
March '09 source compiled with GCC 4.3.2: 4m 56s

SSE2 modified source, Intel compiler: 3m 13s
SSE2 modified source, GCC compiler: 3m 25s
---------------------------------------------------------------
CPU AMD Athlon64 6000+ @ 3.0ghz

primegrid_ap26_1.00_x86_64-pc-linux-gnu : 3m 43s

SSE2 modified source, Intel compiler: 3m 23s
SSE2 modified source, GCC compiler: 3m 38s
---------------------------------------------------------------

It appears that the Intel Compiler increases speed a little over GCC in both AMD/Intel CPUs with SSE2 code. Also, Intel CPUs have a huge advantage with SSE2 on both compilers, while this AMD processor just a few seconds faster.

Comparing the ldd of the GCC-SSE2 app and PrimeGrid app:

ldd primegrid_ap26_1.00_x86_64-pc-linux-gnu
linux-vdso.so.1 => (0x00007fffcc1fe000)
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003692e00000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003684400000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003691200000)
libc.so.6 => /lib64/libc.so.6 (0x0000003683800000)
libm.so.6 => /lib64/libm.so.6 (0x0000003683c00000)
/lib64/ld-linux-x86-64.so.2 (0x0000003683400000)

ldd ap26-gcc-sse2-x86_64
linux-vdso.so.1 => (0x00007fff50dfe000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003684400000)
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003692e00000)
libm.so.6 => /lib64/libm.so.6 (0x0000003683c00000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003691200000)
libc.so.6 => /lib64/libc.so.6 (0x0000003683800000)
/lib64/ld-linux-x86-64.so.2 (0x0000003683400000)

Matches, so using the GCC app linked dynamically should be ok it seems.
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321 LLR Bronze: Earned 10,000 credits (10,190)Cullen LLR Bronze: Earned 10,000 credits (23,978)PPS LLR Bronze: Earned 10,000 credits (50,765)PSP LLR Bronze: Earned 10,000 credits (11,013)SoB LLR Bronze: Earned 10,000 credits (16,508)SR5 LLR Bronze: Earned 10,000 credits (10,703)SGS LLR Bronze: Earned 10,000 credits (10,005)TRP LLR Bronze: Earned 10,000 credits (10,303)Woodall LLR Bronze: Earned 10,000 credits (11,537)321 Sieve Bronze: Earned 10,000 credits (21,060)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (22,668)PPS Sieve Silver: Earned 100,000 credits (260,686)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (40,185)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,280)AP 26/27 Silver: Earned 100,000 credits (149,718)GFN Bronze: Earned 10,000 credits (45,568)PSA Silver: Earned 100,000 credits (271,875)
Message 18112 - Posted: 20 Sep 2009 | 22:03:05 UTC - in response to Message 18093.

Any idea what temperatures the CPU is running?
just checked my 3 hosts and I have one wu that had a similar error.

The CPU was running at about 72C (quite hot, but during this summer I've seen it peak at 77-78C doing LLR and didn't give any errors).

I set it single-core and let it run for 24 hrs (at 63-64C) and there were no errors.

I guess I'll give the fan a good clean-up, re-enable both cores and see if the errors return or not.

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18113 - Posted: 21 Sep 2009 | 0:46:42 UTC - in response to Message 18112.

Ok, hopefully that will fix the errors you were having.

I've been monitoring my 3 hosts running the app and they are running fine so far. I also browsed around the top hosts list and it seems no errors on those machines, either.
____________

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18199 - Posted: 27 Sep 2009 | 18:38:32 UTC
Last modified: 27 Sep 2009 | 18:40:05 UTC

I've noticed a trend in the hosts having random SIGSEV errors. All I have seen, including mine, are running a Linux kernel 2.6.28 (most likely Ubuntu).

Saw this post on another BOINC forum:


Hello!
I do have "some" problems with my linux 64 bits host All seems to end in a SigSegv error code 193 on this host!
When looking furhter into some of the wu's other have problems too; could it be some error in the work units?

Posted by Crunch3r:

No it's not the fault of the WU. The cause of this is Ubuntu 9.04 and it's kernel.
It's messed up.

The same behavior has been seen over at S@H, running optimized apps...


This isn't a very technical explanation, but hopefully it will help anyone having problems.
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Found 1 prime in the 2019 Tour de Primes321 LLR Amethyst: Earned 1,000,000 credits (1,310,491)Cullen LLR Amethyst: Earned 1,000,000 credits (1,065,659)ESP LLR Amethyst: Earned 1,000,000 credits (1,875,010)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,216,209)PPS LLR Turquoise: Earned 5,000,000 credits (5,212,863)PSP LLR Amethyst: Earned 1,000,000 credits (1,323,642)SoB LLR Turquoise: Earned 5,000,000 credits (7,603,584)SR5 LLR Amethyst: Earned 1,000,000 credits (1,891,772)SGS LLR Amethyst: Earned 1,000,000 credits (1,163,706)TRP LLR Ruby: Earned 2,000,000 credits (3,832,495)Woodall LLR Amethyst: Earned 1,000,000 credits (1,323,182)321 Sieve Ruby: Earned 2,000,000 credits (2,432,077)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,967,439)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,137,451)PPS Sieve Double Silver: Earned 200,000,000 credits (266,868,275)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (627,444)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (3,956,401)AP 26/27 Jade: Earned 10,000,000 credits (15,856,233)GFN Emerald: Earned 50,000,000 credits (64,937,531)PSA Emerald: Earned 50,000,000 credits (87,901,787)
Message 18203 - Posted: 28 Sep 2009 | 15:34:37 UTC
Last modified: 28 Sep 2009 | 15:37:47 UTC

I am running Ubuntu 64-bit Kernel 2.6.28-15-server and have not seen many SIGSEGV errors.

Can you specify the corrupt kernel-version more exactly ?
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my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18204 - Posted: 28 Sep 2009 | 17:05:08 UTC - in response to Message 18203.

I am running Ubuntu 64-bit Kernel 2.6.28-15-server and have not seen many SIGSEGV errors.

Can you specify the corrupt kernel-version more exactly ?


My Q6600 running Ubuntu reads "2.6.28-11-generic", and every host I've seen with SIGSEGV errors have the same kernel. The Q6600 development box running Fedora 10 has not had the problem. My AMD running Ubuntu 2.6.28-11-generic has not had a problem. So it's all speculation, really. Maybe it's just with Intel processors on that kernel.
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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,309,957)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (8,722,055)PSP LLR Ruby: Earned 2,000,000 credits (3,564,856)SoB LLR Ruby: Earned 2,000,000 credits (3,254,352)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,945,539)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,450,469)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (33,199,226)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,020,744)GFN Sapphire: Earned 20,000,000 credits (39,501,491)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 18206 - Posted: 28 Sep 2009 | 18:55:46 UTC - in response to Message 18204.
Last modified: 28 Sep 2009 | 18:57:19 UTC

Try patching the kernel to current version cos 2.6.28-11 is old and 2.6.28-15 is current.
I have no issues with the Intel/Ubuntu combination for PrimeGrid.
update-manager is your friend!
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321 LLR Amethyst: Earned 1,000,000 credits (1,556,899)Cullen LLR Gold: Earned 500,000 credits (500,200)ESP LLR Gold: Earned 500,000 credits (738,168)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (241,969)PPS LLR Ruby: Earned 2,000,000 credits (2,612,328)PSP LLR Ruby: Earned 2,000,000 credits (2,374,435)SoB LLR Amethyst: Earned 1,000,000 credits (1,567,316)SR5 LLR Gold: Earned 500,000 credits (880,286)SGS LLR Amethyst: Earned 1,000,000 credits (1,481,783)TRP LLR Amethyst: Earned 1,000,000 credits (1,787,802)Woodall LLR Silver: Earned 100,000 credits (118,189)321 Sieve Amethyst: Earned 1,000,000 credits (1,000,061)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (14,643,949)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (3,494,619)PPS Sieve Sapphire: Earned 20,000,000 credits (29,972,458)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,208,890)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,080,539)AP 26/27 Gold: Earned 500,000 credits (507,329)GFN Turquoise: Earned 5,000,000 credits (7,825,935)
Message 18216 - Posted: 29 Sep 2009 | 8:56:35 UTC - in response to Message 18206.
Last modified: 29 Sep 2009 | 8:59:37 UTC

I had a few segmentation violation errors with the Intel / Ubuntu 2.6.28-15-generic combination out of hundreds of tasks.
A few older ones are already purged.
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Discovered 1 mega prime321 LLR Amethyst: Earned 1,000,000 credits (1,004,625)Cullen LLR Amethyst: Earned 1,000,000 credits (1,019,085)ESP LLR Amethyst: Earned 1,000,000 credits (1,006,207)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,148,385)PPS LLR Ruby: Earned 2,000,000 credits (4,011,256)PSP LLR Ruby: Earned 2,000,000 credits (2,115,686)SoB LLR Ruby: Earned 2,000,000 credits (2,357,348)SR5 LLR Ruby: Earned 2,000,000 credits (2,050,964)SGS LLR Amethyst: Earned 1,000,000 credits (1,175,581)TRP LLR Amethyst: Earned 1,000,000 credits (1,109,064)Woodall LLR Amethyst: Earned 1,000,000 credits (1,606,752)321 Sieve Ruby: Earned 2,000,000 credits (2,113,919)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,655,968)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,006,509)PPS Sieve Double Silver: Earned 200,000,000 credits (347,222,280)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,014,690)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,141,121)AP 26/27 Ruby: Earned 2,000,000 credits (2,764,542)GFN Emerald: Earned 50,000,000 credits (76,867,118)PSA Jade: Earned 10,000,000 credits (16,276,495)
Message 18242 - Posted: 1 Oct 2009 | 10:52:19 UTC - in response to Message 18199.

I've noticed a trend in the hosts having random SIGSEV errors. All I have seen, including mine, are running a Linux kernel 2.6.28 (most likely Ubuntu).

I've had a few, here's one http://www.primegrid.com/result.php?resultid=126711310
Host is running Ubuntu 9.04 64 (2.6.28-15-generic) on a T5800 C2D.
Not too worried as the WUs are processed so quickly now, (thanks Bryan), that one in a while is not a problem.
Pete.
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35 x 2^3587843+1 is prime!

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Discovered 1 mega primeDiscovered 2 AP26sFound 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 Silver: Earned 100,000 credits (317,098)Cullen LLR Silver: Earned 100,000 credits (314,927)ESP LLR Ruby: Earned 2,000,000 credits (3,689,780)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,299)PPS LLR Sapphire: Earned 20,000,000 credits (28,432,230)PSP LLR Silver: Earned 100,000 credits (413,594)SoB LLR Jade: Earned 10,000,000 credits (11,581,286)SR5 LLR Gold: Earned 500,000 credits (690,610)SGS LLR Amethyst: Earned 1,000,000 credits (1,086,646)TRP LLR Turquoise: Earned 5,000,000 credits (5,648,504)Woodall LLR Silver: Earned 100,000 credits (218,868)321 Sieve Turquoise: Earned 5,000,000 credits (5,425,049)PPS Sieve Emerald: Earned 50,000,000 credits (57,903,667)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (47,384)TRP Sieve (suspended) Bronze: Earned 10,000 credits (49,560)AP 26/27 Double Gold: Earned 500,000,000 credits (598,740,860)GFN Double Bronze: Earned 100,000,000 credits (123,519,380)PSA Silver: Earned 100,000 credits (456,000)
Message 18248 - Posted: 1 Oct 2009 | 15:57:40 UTC

I switched a q6600 from Ubuntu to Fedora 12 alpha (2.6.31-0.125.4.2.rc5.git2.fc12.x86_64) and have not had an error yet. So something strange going on with the Ubuntu 2.6.28 Kernel. But not even a big deal, it was only 4 errrors out of hundreds of workunits.
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