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Message boards : The Riesel Problem : GPU sieve application?

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Andy
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Joined: 8 Aug 13
Posts: 12
ID: 247565
Credit: 237,441,313
RAC: 0
321 LLR Silver: Earned 100,000 credits (274,503)Cullen LLR Gold: Earned 500,000 credits (564,289)ESP LLR Silver: Earned 100,000 credits (356,052)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (81,761)PPS LLR Bronze: Earned 10,000 credits (64,375)PSP LLR Amethyst: Earned 1,000,000 credits (1,218,180)SoB LLR Turquoise: Earned 5,000,000 credits (5,523,622)SR5 LLR Bronze: Earned 10,000 credits (85,361)SGS LLR Bronze: Earned 10,000 credits (20,516)TRP LLR Sapphire: Earned 20,000,000 credits (30,991,048)Woodall LLR Gold: Earned 500,000 credits (698,193)321 Sieve Bronze: Earned 10,000 credits (39,033)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (11,470)PPS Sieve Turquoise: Earned 5,000,000 credits (7,854,430)TRP Sieve (suspended) Gold: Earned 500,000 credits (648,286)AP 26/27 Amethyst: Earned 1,000,000 credits (1,920,425)GFN Double Bronze: Earned 100,000,000 credits (187,089,768)
Message 70082 - Posted: 16 Oct 2013 | 3:30:43 UTC

I was wondering since pps has a gpu sieve application if there were any plans or if it was possible to bring a riesel version online at some point?

ID: 70082 | Report as offensive
Profile Mr. Cool*Project donor
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Joined: 20 Jan 11
Posts: 159
ID: 82236
Credit: 631,893,666
RAC: 0
321 LLR Silver: Earned 100,000 credits (143,713)Cullen LLR Silver: Earned 100,000 credits (138,103)PPS LLR Gold: Earned 500,000 credits (502,784)PSP LLR Silver: Earned 100,000 credits (102,497)SoB LLR Silver: Earned 100,000 credits (190,719)SR5 LLR Bronze: Earned 10,000 credits (70,835)SGS LLR Turquoise: Earned 5,000,000 credits (8,845,411)TRP LLR Ruby: Earned 2,000,000 credits (3,125,636)Woodall LLR Silver: Earned 100,000 credits (148,137)321 Sieve Silver: Earned 100,000 credits (116,747)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (44,749,048)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (12,238,236)PPS Sieve Double Bronze: Earned 100,000,000 credits (115,323,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,389,756)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (24,791,259)GFN Amethyst: Earned 1,000,000 credits (1,019,215)PSA Double Silver: Earned 200,000,000 credits (411,000,181)
Message 70083 - Posted: 16 Oct 2013 | 4:52:24 UTC - in response to Message 70082.

There has recently been a discussion about it and it turned out after some test that a GPU sieve many times slower than a current CPU sieve.

When sieving on a GPU it doesn't matter how many k's you sieve (it takes the same time to sieve k=3 and k=3 to k=9999), it only matters what n-range you sieve. So a GTX570 performs 10 times and more slower than an i7-3770.

That's why we don't have a GPU version of TRP Sieve.

Cheers

ID: 70083 | Report as offensive
Andy
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Joined: 8 Aug 13
Posts: 12
ID: 247565
Credit: 237,441,313
RAC: 0
321 LLR Silver: Earned 100,000 credits (274,503)Cullen LLR Gold: Earned 500,000 credits (564,289)ESP LLR Silver: Earned 100,000 credits (356,052)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (81,761)PPS LLR Bronze: Earned 10,000 credits (64,375)PSP LLR Amethyst: Earned 1,000,000 credits (1,218,180)SoB LLR Turquoise: Earned 5,000,000 credits (5,523,622)SR5 LLR Bronze: Earned 10,000 credits (85,361)SGS LLR Bronze: Earned 10,000 credits (20,516)TRP LLR Sapphire: Earned 20,000,000 credits (30,991,048)Woodall LLR Gold: Earned 500,000 credits (698,193)321 Sieve Bronze: Earned 10,000 credits (39,033)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (11,470)PPS Sieve Turquoise: Earned 5,000,000 credits (7,854,430)TRP Sieve (suspended) Gold: Earned 500,000 credits (648,286)AP 26/27 Amethyst: Earned 1,000,000 credits (1,920,425)GFN Double Bronze: Earned 100,000,000 credits (187,089,768)
Message 70084 - Posted: 16 Oct 2013 | 5:43:14 UTC - in response to Message 70083.

Thanks! that's exactly what I was looking for. I searched the wiki and the forums and I didn't find the conversation or any mention of it.

ID: 70084 | Report as offensive

Message boards : The Riesel Problem : GPU sieve application?

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