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Message boards : Aggie The Pew message board : AMDs up & coming

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Profile Evan
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ID: 484059
Credit: 11,041,578
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Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,171,478)PSP LLR Amethyst: Earned 1,000,000 credits (1,113,641)SoB LLR Turquoise: Earned 5,000,000 credits (6,011,108)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (73,721)TRP Sieve (suspended) Silver: Earned 100,000 credits (135,760)GFN Ruby: Earned 2,000,000 credits (2,535,869)
Message 104439 - Posted: 1 Feb 2017 | 3:59:39 UTC

So I'm sure a few of you, or maybe all of you, perhaps none of you, follow AMD. At one point, two years ago or so, the future for AMD was very dark and uncertain however the CEO has really turned the company around. They released their Q4 & 2016 earnings today and did pretty well. Onto the main point of the thread,

has anyone considered what the zen architecture might offer for our purposes with PrimeGrid? AMD is supposed to be keeping the same pricing strategy, that is, undercutting equivalent intel chips but not offering full fledged performance. I haven't seen the benchmarks yet but they're supposed to be that of the 6700 haswells? (Verify that)

Van ZimmermanProject donor
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Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,197,588)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,873,609)PPS LLR Sapphire: Earned 20,000,000 credits (21,918,476)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (26,779,370)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,394,541)321 Sieve Sapphire: Earned 20,000,000 credits (24,315,505)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,373,251)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (60,248,786)GFN Double Ruby: Earned 2,000,000,000 credits (4,407,191,681)PSA Double Bronze: Earned 100,000,000 credits (198,313,575)
Message 104443 - Posted: 1 Feb 2017 | 4:40:03 UTC - in response to Message 104439.

So I'm sure a few of you, or maybe all of you, perhaps none of you, follow AMD. At one point, two years ago or so, the future for AMD was very dark and uncertain however the CEO has really turned the company around. They released their Q4 & 2016 earnings today and did pretty well. Onto the main point of the thread,

has anyone considered what the zen architecture might offer for our purposes with PrimeGrid? AMD is supposed to be keeping the same pricing strategy, that is, undercutting equivalent intel chips but not offering full fledged performance. I haven't seen the benchmarks yet but they're supposed to be that of the 6700 haswells? (Verify that)


Cautiously. Their performance has historically been pretty bad, at least for LLR.
Benchmarks can show many things, I'd be interested in Prime95.

I would be happy to be pleasantly surprised. On the other hand, I'm not holding my breath...


Profile Evan
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Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,171,478)PSP LLR Amethyst: Earned 1,000,000 credits (1,113,641)SoB LLR Turquoise: Earned 5,000,000 credits (6,011,108)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (73,721)TRP Sieve (suspended) Silver: Earned 100,000 credits (135,760)GFN Ruby: Earned 2,000,000 credits (2,535,869)
Message 104444 - Posted: 1 Feb 2017 | 4:44:23 UTC - in response to Message 104443.

When will we know what they're capable of? I imagine after they've released their first few chips and benchmarking has been done? What has primegrid done in the passed as far as testing new chips as they are released?

mackerelProject donor
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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 104455 - Posted: 1 Feb 2017 | 9:28:29 UTC

Short answer is we don't know. This is something I've been attempting to follow for a while as far as AVX/FMA performance is concerned.

Compared to current AMD CPUs, we can at least expect about double performance per core, since there will be one FPU per core, not one per two cores as current. This is of course on the assumption they're no worse than the current FPU.

Double might sound good, but it isn't. Due to their implementation of instructions used for higher speed, per FPU current ones can't come close to Intel. This is the big unknown in their future FPU performance. Based on slides known to come from AMD, I'm leaning towards that being it. There remains an optimist's view they have done more than that, and it will actually catch up with Intel. We will have to wait and see.

In the best case, that they now have FPUs comparable to Intel's, there will be another different problem. Ryzen for consumer appears to only offer dual channel ram. If all the FPUs on an 8 core part are that fast, it will be trivially easy to be ram bandwidth limited for large LLR tasks. It would destroy small LLR tasks though...

The existing demos shown publicly by AMD don't give us anything useful to relate to FMA performance. If pricing and availability isn't silly, I intend to get one as soon as practical after launch to do my own testing. I'm sure there'll be mainstream reviews shortly before that, but they're unlikely to cover it in a way useful to us.

Profile Gary Craig
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Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,614,439)Cullen LLR Ruby: Earned 2,000,000 credits (2,440,687)ESP LLR Turquoise: Earned 5,000,000 credits (5,613,309)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,292,626)PPS LLR Turquoise: Earned 5,000,000 credits (6,696,613)PSP LLR Turquoise: Earned 5,000,000 credits (5,000,433)SoB LLR Turquoise: Earned 5,000,000 credits (6,700,144)SR5 LLR Turquoise: Earned 5,000,000 credits (5,040,727)SGS LLR Ruby: Earned 2,000,000 credits (3,333,837)TRP LLR Jade: Earned 10,000,000 credits (12,510,311)Woodall LLR Ruby: Earned 2,000,000 credits (2,282,622)321 Sieve Silver: Earned 100,000 credits (200,818)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (59,788,598)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,143,068)PPS Sieve Double Gold: Earned 500,000,000 credits (500,867,936)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,130,821)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,074,710)AP 26/27 Sapphire: Earned 20,000,000 credits (20,098,349)GFN Double Bronze: Earned 100,000,000 credits (152,259,971)PSA Emerald: Earned 50,000,000 credits (62,378,755)
Message 104483 - Posted: 1 Feb 2017 | 17:12:30 UTC

I had a AMD 1090T back in the pre-AVX days. It nearly caught fire (sparks, smoke) when the liquid cooler failed. It took a week to get rid of the burnt-electrical smell from my house. Then, a trip to the local hazmat-disposal site.

Not to imply this is particularly relevant to current models; I just thought I'd share some (unpleasant) memories.

--Gary

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 104487 - Posted: 1 Feb 2017 | 17:27:06 UTC - in response to Message 104483.

I had a 1050T I think it was, whatever the one was with 2.8GHz stock clock. It overclocked to 3.5 GHz no sweat at lower voltage than stock and had more computational power than the rest of my then systems combined (Core 2 era). Think that was the about the last generation before they started falling behind Intel though.

Message boards : Aggie The Pew message board : AMDs up & coming

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