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Message boards : Sieving : Factorial Sieve Slowdown

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Michael MillerickProject donor
Volunteer tester
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Joined: 4 Feb 09
Posts: 938
ID: 35074
Credit: 909,472,901
RAC: 1,405,364
Discovered 3 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 7 primes in the 2023 Tour de PrimesFound 1 mega prime in the 2023 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,068,130)Cullen LLR Turquoise: Earned 5,000,000 credits (5,579,447)ESP LLR Sapphire: Earned 20,000,000 credits (20,186,009)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (67,860,230)PPS LLR Sapphire: Earned 20,000,000 credits (35,787,693)PSP LLR Turquoise: Earned 5,000,000 credits (6,047,646)SoB LLR Turquoise: Earned 5,000,000 credits (5,787,781)SR5 LLR Emerald: Earned 50,000,000 credits (55,441,081)SGS LLR Turquoise: Earned 5,000,000 credits (5,117,542)TRP LLR Turquoise: Earned 5,000,000 credits (5,314,541)Woodall LLR Turquoise: Earned 5,000,000 credits (5,529,510)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,440,175)Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,151,433)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Emerald: Earned 50,000,000 credits (50,449,372)GFN Double Silver: Earned 200,000,000 credits (250,488,153)WW (retired) Double Silver: Earned 200,000,000 credits (250,000,000)PSA Emerald: Earned 50,000,000 credits (52,866,806)
Message 24371 - Posted: 17 Jun 2010 | 1:20:16 UTC

I've noticed a few times that fsieve begins to slow down after it has been running for a while on my machine, often times stopping and restarting the sieve has been able to fix the problem. Has anyone else experienced this and does anyone else know how to fix this?

Running on 64 bit ubuntu 9.04
____________

ID: 24371 | Report as offensive
Michael MillerickProject donor
Volunteer tester
Send message
Joined: 4 Feb 09
Posts: 938
ID: 35074
Credit: 909,472,901
RAC: 1,405,364
Discovered 3 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 7 primes in the 2023 Tour de PrimesFound 1 mega prime in the 2023 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,068,130)Cullen LLR Turquoise: Earned 5,000,000 credits (5,579,447)ESP LLR Sapphire: Earned 20,000,000 credits (20,186,009)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (67,860,230)PPS LLR Sapphire: Earned 20,000,000 credits (35,787,693)PSP LLR Turquoise: Earned 5,000,000 credits (6,047,646)SoB LLR Turquoise: Earned 5,000,000 credits (5,787,781)SR5 LLR Emerald: Earned 50,000,000 credits (55,441,081)SGS LLR Turquoise: Earned 5,000,000 credits (5,117,542)TRP LLR Turquoise: Earned 5,000,000 credits (5,314,541)Woodall LLR Turquoise: Earned 5,000,000 credits (5,529,510)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,440,175)Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (27,151,433)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Emerald: Earned 50,000,000 credits (50,449,372)GFN Double Silver: Earned 200,000,000 credits (250,488,153)WW (retired) Double Silver: Earned 200,000,000 credits (250,000,000)PSA Emerald: Earned 50,000,000 credits (52,866,806)
Message 24373 - Posted: 17 Jun 2010 | 6:16:07 UTC - in response to Message 24371.

Disregard this, I managed to figure out the problem, when the evening sun would shine though the window and hit the computer, it could not discharge heat fast enough so the processor started to clock down to compensate, the disadvantages of having a laptop.
____________

ID: 24373 | Report as offensive

Message boards : Sieving : Factorial Sieve Slowdown

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