By: none (none.delete@this.none.com), August 14, 2018 5:15 am
Room: Moderated Discussions
Jeff S. (fakity.delete@this.fake.com) on August 14, 2018 5:06 am wrote:
> none (none.delete@this.none.com) on August 14, 2018 1:43 am wrote:
> > Jouni Osmala (a.delete@this.b.com) on August 13, 2018 8:04 pm wrote:
> > > In the single threaded benchmarks 2990WX got numbers that put it deeply in the
> > > category of flock of chickens in several peoples theoretical arguments.
> > > Here are the single threaded benchmarks of Anandtech. Comparison to best CPU in each category.
> > > Others may have low threads, but they are not explitely named as single threaded.
> > > y crucher 122 seconds vs 53 seconds.
> > > Geekbench 4250 vs 5846
> > > 3DPM 106 vs 156
> > > Cinebench v11.5: 1.9 vs 2.25
> > > Cinebench v10: 8825 vs 9677
> > > On average the fastest single threaded is 58% faster. (Didn't count Cinebench twice).
>
> > y-cruncher is very peculiar in its heavy use of AVX2 and AVX-512. For instance it got a
> > speedup of 20-30% with AVX-512.
>
> There were multiple things that seemed off to me about Ian's review (mostly around the totally
> unexplained power measurements and analysis), but the y-cruncher results don't look weird to
> me whatsoever. Alex, the author of y-cruncher and coincidentally also my colleague, also knows
> Ian I think, so I may have a back channel in getting parts of the review clarified.
Just to clarify, I didn't say the y-cruncher results are wrong or demonstrate a poor software implementation. It's just that it seems heavily tuned to benefit the most from
multiple FMA (FFT-based multiplication) and the author is very good at that :-)
So what this test shows is that Intel cores are much better at heavily tuned FP (FMA)
than AMD cores.
> none (none.delete@this.none.com) on August 14, 2018 1:43 am wrote:
> > Jouni Osmala (a.delete@this.b.com) on August 13, 2018 8:04 pm wrote:
> > > In the single threaded benchmarks 2990WX got numbers that put it deeply in the
> > > category of flock of chickens in several peoples theoretical arguments.
> > > Here are the single threaded benchmarks of Anandtech. Comparison to best CPU in each category.
> > > Others may have low threads, but they are not explitely named as single threaded.
> > > y crucher 122 seconds vs 53 seconds.
> > > Geekbench 4250 vs 5846
> > > 3DPM 106 vs 156
> > > Cinebench v11.5: 1.9 vs 2.25
> > > Cinebench v10: 8825 vs 9677
> > > On average the fastest single threaded is 58% faster. (Didn't count Cinebench twice).
>
> > y-cruncher is very peculiar in its heavy use of AVX2 and AVX-512. For instance it got a
> > speedup of 20-30% with AVX-512.
>
> There were multiple things that seemed off to me about Ian's review (mostly around the totally
> unexplained power measurements and analysis), but the y-cruncher results don't look weird to
> me whatsoever. Alex, the author of y-cruncher and coincidentally also my colleague, also knows
> Ian I think, so I may have a back channel in getting parts of the review clarified.
Just to clarify, I didn't say the y-cruncher results are wrong or demonstrate a poor software implementation. It's just that it seems heavily tuned to benefit the most from
multiple FMA (FFT-based multiplication) and the author is very good at that :-)
So what this test shows is that Intel cores are much better at heavily tuned FP (FMA)
than AMD cores.
Topic | Posted By | Date |
---|---|---|
Threadripper 32 core review | Per Hesselgren | 2018/08/13 08:50 AM |
Threadripper 32 core review | wumpus | 2018/08/13 09:32 AM |
Threadripper 32 core review | Linus Torvalds | 2018/08/13 02:12 PM |
Threadripper 32 core review | pgerassi | 2018/08/13 03:16 PM |
Threadripper 32 core review | Linus Torvalds | 2018/08/13 03:48 PM |
Less Power Hungry Part? | Passing Through | 2018/08/13 04:19 PM |
Threadripper 32 core review | Groo | 2018/08/13 04:50 PM |
Threadripper 32 core review | Passing Through | 2018/08/14 12:45 PM |
Threadripper 32 core review | pgerassi | 2018/08/13 06:41 PM |
Threadripper 32 core review | juanrga | 2018/08/14 04:44 AM |
Threadripper 32 core review | Linus Torvalds | 2018/08/14 09:37 AM |
Threadripper 32 core review | juanrga | 2018/08/14 11:18 AM |
Threadripper 32 core review | juanrga | 2018/08/16 02:16 AM |
Threadripper 32 core review | Jukka Larja | 2018/08/14 08:41 AM |
[side topic] personal supercomputer (Threadripper 32 core review) | hobold | 2018/08/16 04:47 AM |
Threadripper 32 core review | Alberto | 2018/08/13 11:11 AM |
Threadripper 32 core review | Maynard Handley | 2018/08/13 01:27 PM |
Threadripper 32 core review | Doug S | 2018/08/13 02:01 PM |
Threadripper 32 core review | Alberto | 2018/08/14 02:50 AM |
Threadripper 32 core review | none | 2018/08/14 05:08 AM |
On revenues and right choices | AM | 2018/08/14 08:33 AM |
Threadripper 32 core review | Alberto | 2018/08/14 12:57 AM |
Threadripper 32 core review | Jeff S. | 2018/08/14 07:00 AM |
Shrinks and power density | AM | 2018/08/14 08:49 AM |
Shrinks and power density | David Hess | 2018/08/18 01:30 PM |
Shrinks and power density | AM | 2018/08/19 08:12 AM |
Shrinks and power density | anonymou5 | 2018/08/19 09:13 PM |
Shrinks and power density | John H | 2018/08/20 05:16 PM |
Threadripper 32 core review | David Hess | 2018/08/18 01:43 PM |
Threadripper 32 core review | anon | 2018/08/13 02:48 PM |
Threadripper 32 core review | anon | 2018/08/13 03:25 PM |
*while (NT) | anon | 2018/08/13 03:26 PM |
Threadripper 32 core review | pgerassi | 2018/08/13 07:34 PM |
Threadripper 32 core review | anon | 2018/08/14 05:40 AM |
Threadripper 32 core review | Gabriele Svelto | 2018/08/14 04:22 AM |
Threadripper 32 core review | anon | 2018/08/14 05:44 AM |
Flock of Chickens. | Jouni Osmala | 2018/08/13 08:04 PM |
Flock of Chickens. | none | 2018/08/14 01:43 AM |
AnandTech review clarity | Jeff S. | 2018/08/14 05:06 AM |
AnandTech review clarity | none | 2018/08/14 05:15 AM |
AnandTech review clarity | Jeff S. | 2018/08/14 05:36 AM |
AnandTech review clarity | none | 2018/08/14 05:44 AM |
AnandTech review clarity | none | 2018/08/14 05:53 AM |