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Number crunching :
GPU FLOPS: Theory vs Reality
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Bill Send message Joined: 30 Nov 05 Posts: 282 Credit: 6,916,194 RAC: 60 |
I just noticed that the bars appear to be wider than the last graph. Any idea what might be the cause of it? Perhaps because more tasks have been crunched since the last plot? Seti@home classic: 1,456 results, 1.613 years CPU time |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Believe the bars show variance. So larger sample size. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Shaggie76 Send message Joined: 9 Oct 09 Posts: 282 Credit: 271,858,118 RAC: 196 |
New scan includes early results for the GTX 1660 Ti -- only 14 hosts so there's more variance but it's looking very good. |
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
Nice graphs, Thanks. The top #2 is doing about 6000 cr/hour per each one RTX2080Ti. I just wish those easy to calculate numbers would be plotted with red X on the chart too. My own (#3) mix of 2 GTX1080, one 1080Ti and a TITAN V is a hard one to plot so I'm not asking to do that. I know that plotting bigger numbers to the graph would need a huge readjustment of the horizontal axis. Thanks anyway. I'd really like blue/green/gold bars to show NV special app performance per hour and per advertised watt for each GPU type that have any data in the DB. That way people could decide what to buy for Windows and what to buy when planning to build a (compute only?) Linux rig. -- Petri To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
I think Shaggy can't automate recognition of the CUDA special sauce. I would be willing to create a text file of system ids of "all" or at least a lot of the special sauce users. Surely we have enough running them to get a good baseline. Then the trick would be to clone/create a new script that extracted only the systems on "the list". Tom A proud member of the OFA (Old Farts Association). |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13842 Credit: 208,696,464 RAC: 304 |
New scan includes early results for the GTX 1660 Ti -- only 14 hosts so there's more variance but it's looking very good. Basically on par with the GTX 1080, and the RTX 2060 is on par with the GTX 1080Ti. Very good indeed. Grant Darwin NT |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
New scan includes early results for the GTX 1660 Ti -- only 14 hosts so there's more variance but it's looking very good. I haven't looked. Is the price of a Gtx 1660 Ti at or lower than the price of a used gtx 1080 Ti? I am ignoring operational cost. Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I haven't looked. Is the price of a Gtx 1660 Ti at or lower than the price of a used gtx 1080 Ti? I am ignoring operational cost. Based on a quick perusal of used eBay prices of the 1080 Ti, the 1660 TI is half the price. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
New scan includes early results for the GTX 1660 Ti -- only 14 hosts so there's more variance but it's looking very good. there's too much variance with the stock apps due to all the different settings people run. i've compared several models manually by watching the performance of many hosts with various cards with the special app, which has MUCH less variance since there's really only one switch you can play with (the nobs argument). hierarchy is roughly this: Titan V 2080ti 2080 2070 ~ 1080ti 2060 ~ 1080 1660ti ~ 1070ti 1660 likely to be around a 1070, but i haven't looked. I'm in the process of swapping my 1080ti's to 2070s to save on some power. they are almost identical in speed. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
bloodrain Send message Joined: 8 Dec 08 Posts: 231 Credit: 28,112,547 RAC: 1 |
good to here. i got got 4 more and will add them to wu next month. also i should note for some reason i say last 3 driver update from amd been doing some strange things to the 580s |
Shaggie76 Send message Joined: 9 Oct 09 Posts: 282 Credit: 271,858,118 RAC: 196 |
I just wish those easy to calculate numbers would be plotted with red X on the chart too. As a programmer I'm sure that you're familiar with Amdahl's law; making the app 3x faster for a dozen users is insignificant compared with making the app faster for the 90,000 other active users volunteering for the project. Please stop asking me to show how much faster your code is on my graphs until it's an official app that everyone can use. |
juan BFP Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799 |
Please stop asking me to show how much faster your code is on my graphs until it's an official app that everyone can use. I was one of those who ask, it's your app & your choice, we all need to respect that of course, just was unaware of that. Will not ask again in the future. Please forgive me. Just not understand the second part, there are some misunderstanding, the Linux apps are available in the same site as the Lunatics are, so anyone could use. |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
New this scan: NVIDIA GeForce RTX 2060's with excellent credit/watt and excellent performance. I keep running across (gamer) reviews that claim a Gtx 1070 is so close to being a Gtx 1070Ti that you should buy the Gtx 1070. I know, on the used market at least, that there is $70- difference in price. Anyone have an opinion? Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I keep running across (gamer) reviews that claim a Gtx 1070 is so close to being a Gtx 1070Ti that you should buy the Gtx 1070. I know, on the used market at least, that there is $70- difference in price. Anyone have an opinion? I am always disappointed that my 1070Ti's performance is closer to the 1070 than it is to my 1080's. Even though it only has one less SM compared to the 1080 and 4 more SM's than my 1070's Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
I keep running across (gamer) reviews that claim a Gtx 1070 is so close to being a Gtx 1070Ti that you should buy the Gtx 1070. I know, on the used market at least, that there is $70- difference in price. Anyone have an opinion? The price of a gtx 1070 (used) vs. gtx 1070Ti on eBay is $80-$100 less. Are there any other markets where I can reliably get one (or more) cheaper? Tom A proud member of the OFA (Old Farts Association). |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
Just found some used gtx 1070's on eBay for $88, with a brand name (if they don't offer a brand beyond Nvidia, it is usually a scam offer), offered from the US. So I ordered 2. Tom A proud member of the OFA (Old Farts Association). |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
So far it is looking like yet another dead end :( Tom A proud member of the OFA (Old Farts Association). |
Shaggie76 Send message Joined: 9 Oct 09 Posts: 282 Credit: 271,858,118 RAC: 196 |
New this scan, Radeon RX 590, GeForce GTX 1660 Ti, and GeForce RTX 2060: the 1660 Ti looks to be a new leader in performance/watt and the 2060 looks like an excellent economy option! |
.:krypt08700:. Send message Joined: 20 Jul 02 Posts: 5 Credit: 6,788,712 RAC: 0 |
Very cool information. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Thanks for the updated charts and stats, Shaggie76. I have my sights set on the 2070 as the best compromise to replace the 1070's. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
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