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Message boards : Proth Prime Search : PPS Sieve slower on 1080Ti vs TitanX??

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Profile Tuna Ertemalp
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Joined: 27 Mar 15
Posts: 50
ID: 388469
Credit: 2,031,937,901
RAC: 0
321 LLR Ruby: Earned 2,000,000 credits (2,692,818)Cullen LLR Ruby: Earned 2,000,000 credits (4,023,486)ESP LLR Ruby: Earned 2,000,000 credits (3,237,113)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,877,690)PPS LLR Turquoise: Earned 5,000,000 credits (5,840,051)PSP LLR Turquoise: Earned 5,000,000 credits (6,799,312)SoB LLR Turquoise: Earned 5,000,000 credits (8,234,396)SR5 LLR Ruby: Earned 2,000,000 credits (2,751,326)SGS LLR Ruby: Earned 2,000,000 credits (2,299,298)TRP LLR Ruby: Earned 2,000,000 credits (2,433,259)Woodall LLR Turquoise: Earned 5,000,000 credits (5,976,746)321 Sieve Double Bronze: Earned 100,000,000 credits (109,097,449)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,586,050)PPS Sieve Emerald: Earned 50,000,000 credits (65,623,257)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (105,796)TRP Sieve (suspended) Silver: Earned 100,000 credits (291,585)AP 26/27 Sapphire: Earned 20,000,000 credits (28,212,054)GFN Double Amethyst: Earned 1,000,000,000 credits (1,775,832,214)
Message 107806 - Posted: 11 May 2017 | 2:47:21 UTC

Valid: http://www.primegrid.com/results.php?hostid=510142&offset=0&show_names=0&state=4&appid=9
Pending: http://www.primegrid.com/results.php?hostid=510142&offset=0&show_names=0&state=2&appid=9


Yesterday (May 9 evening, PST), in this host, I replaced the two older Maxwell Titan X (~1550Mhz) with two 1080 Ti (~1950Mhz), and pretty much all CUDA apps (GFNs, especially) got much faster. However, all the PPS Sieve tasks seem to have gone slower, from ~350s+ to ~450s+, i.e. ~30%.

Thoughts? Just an anomaly I am seeing with the small sample size I have, or is this a systemic issue?

Tuna

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Message boards : Proth Prime Search : PPS Sieve slower on 1080Ti vs TitanX??

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