PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : Number crunching : Flops decreasing

Author Message
Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 464
ID: 1241833
Credit: 284,203,858
RAC: 670,673
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Ruby: Earned 2,000,000 credits (2,289,208)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,393,342)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,096,952)AP 26/27 Turquoise: Earned 5,000,000 credits (5,150,782)GFN Turquoise: Earned 5,000,000 credits (7,510,843)WW Double Silver: Earned 200,000,000 credits (242,700,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 150584 - Posted: 11 Jun 2021 | 7:59:41 UTC

For a while the total Flops have been decreasing or rather fluctuating strongly. Just out of curiosity, do you know if that is a single user withdrawing and adding a lot of hosts? It might also be related to challenges where users rent clod computing?


____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

vasyannyasha
Avatar
Send message
Joined: 20 Feb 17
Posts: 36
ID: 493939
Credit: 3,248,330
RAC: 11
ESP LLR Bronze: Earned 10,000 credits (53,152)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (10,411)PPS LLR Bronze: Earned 10,000 credits (55,367)SoB LLR Bronze: Earned 10,000 credits (88,532)SR5 LLR Bronze: Earned 10,000 credits (11,350)SGS LLR Bronze: Earned 10,000 credits (24,946)321 Sieve (suspended) Bronze: Earned 10,000 credits (24,395)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (58,434)PPS Sieve Gold: Earned 500,000 credits (549,473)AP 26/27 Silver: Earned 100,000 credits (177,892)GFN Gold: Earned 500,000 credits (659,732)WW Amethyst: Earned 1,000,000 credits (1,284,000)PSA Silver: Earned 100,000 credits (243,010)
Message 150586 - Posted: 11 Jun 2021 | 9:00:11 UTC

First of all, you need to remember that Flops per second is based on expected computing power required to complete the task. And GPU tasks have a lot higher expected computing power than LLR tasks.
Dont know about first two spykes, but third one is TdP and GFN tasks having higher GFLOP/s.
Fourth one is due to WW challemge(again GPU task) and last one is Pentathlon(they think onlt about points so PPS-SV or WW and again GPU tasks)
Also general increase in Flops/s is due to introduction of WW.
____________
(252^6548-1)^2-2 is prime! Small, but mine.
134137784^32768+1(DC)
107853608^8192+1(DC)
10465966^16384+1(DC)

Profile pschoeferProject donor
Volunteer developer
Volunteer tester
Avatar
Send message
Joined: 20 Sep 05
Posts: 668
ID: 845
Credit: 2,380,538,818
RAC: 10,723
Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain StageFound 2 primes in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,917,282)Cullen LLR Turquoise: Earned 5,000,000 credits (9,669,460)ESP LLR Jade: Earned 10,000,000 credits (15,505,816)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,214,657)PPS LLR Sapphire: Earned 20,000,000 credits (20,587,796)PSP LLR Jade: Earned 10,000,000 credits (12,427,826)SoB LLR Jade: Earned 10,000,000 credits (15,175,194)SR5 LLR Sapphire: Earned 20,000,000 credits (23,096,513)SGS LLR Turquoise: Earned 5,000,000 credits (7,835,306)TPS LLR (retired) Bronze: Earned 10,000 credits (76,372)TRP LLR Jade: Earned 10,000,000 credits (16,773,842)Woodall LLR Turquoise: Earned 5,000,000 credits (8,519,621)321 Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,528)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,264)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,347)PPS Sieve Double Silver: Earned 200,000,000 credits (460,091,000)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (3,177,104)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,556,644)AP 26/27 Double Bronze: Earned 100,000,000 credits (140,570,947)GFN Double Silver: Earned 200,000,000 credits (435,336,887)WW Emerald: Earned 50,000,000 credits (55,920,000)PSA Double Amethyst: Earned 1,000,000,000 credits (1,079,860,880)
Message 150591 - Posted: 11 Jun 2021 | 15:43:16 UTC - in response to Message 150586.
Last modified: 11 Jun 2021 | 15:45:08 UTC

First of all, you need to remember that Flops per second is based on expected computing power required to complete the task. And GPU tasks have a lot higher expected computing power than LLR tasks.

AFAIK, the FLOPS are estimated from granted credits.

Dont know about first two spykes, but third one is TdP and GFN tasks having higher GFLOP/s.

The first two were the Alan Turing's Birthday Challenge (PPS-Sieve) and a Formula BOINC sprint (again, mostly PPS-Sieve). The third one appears to be a combination of some other heavy hitters on PPS-Sieve during the last days of 2020 (Sieve tasks completed each day show a peak around New Year's day), and maybe the Good Riddance 2020! Challenge (PPS-DIV attracted a lot of cloud resources). TdP actually corresponds to a dip, likely because GPUs were moved from WW to the GFN projects.

Fourth one is due to WW challemge(again GPU task) and last one is Pentathlon(they think onlt about points so PPS-SV or WW and again GPU tasks)

There was also another Formula BOINC sprint almost immediately after the WW challenge, hence the double peak.
____________

Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 464
ID: 1241833
Credit: 284,203,858
RAC: 670,673
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Ruby: Earned 2,000,000 credits (2,289,208)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,393,342)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,096,952)AP 26/27 Turquoise: Earned 5,000,000 credits (5,150,782)GFN Turquoise: Earned 5,000,000 credits (7,510,843)WW Double Silver: Earned 200,000,000 credits (242,700,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 150598 - Posted: 12 Jun 2021 | 5:55:12 UTC

Ok, thanks.

AFAIK, the FLOPS are estimated from granted credits.
If that's so, then it might be quite inaccurate. WW hands out a lot of credit (easy to reach double badges with a single GPU), so that would explain why it has such an impact.

Or are the credits based on the actual Flops required per WU?
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

Profile pschoeferProject donor
Volunteer developer
Volunteer tester
Avatar
Send message
Joined: 20 Sep 05
Posts: 668
ID: 845
Credit: 2,380,538,818
RAC: 10,723
Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain StageFound 2 primes in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,917,282)Cullen LLR Turquoise: Earned 5,000,000 credits (9,669,460)ESP LLR Jade: Earned 10,000,000 credits (15,505,816)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,214,657)PPS LLR Sapphire: Earned 20,000,000 credits (20,587,796)PSP LLR Jade: Earned 10,000,000 credits (12,427,826)SoB LLR Jade: Earned 10,000,000 credits (15,175,194)SR5 LLR Sapphire: Earned 20,000,000 credits (23,096,513)SGS LLR Turquoise: Earned 5,000,000 credits (7,835,306)TPS LLR (retired) Bronze: Earned 10,000 credits (76,372)TRP LLR Jade: Earned 10,000,000 credits (16,773,842)Woodall LLR Turquoise: Earned 5,000,000 credits (8,519,621)321 Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,528)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,264)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,111,347)PPS Sieve Double Silver: Earned 200,000,000 credits (460,091,000)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (3,177,104)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,556,644)AP 26/27 Double Bronze: Earned 100,000,000 credits (140,570,947)GFN Double Silver: Earned 200,000,000 credits (435,336,887)WW Emerald: Earned 50,000,000 credits (55,920,000)PSA Double Amethyst: Earned 1,000,000,000 credits (1,079,860,880)
Message 150599 - Posted: 12 Jun 2021 | 8:53:28 UTC - in response to Message 150598.

If that's so, then it might be quite inaccurate. WW hands out a lot of credit (easy to reach double badges with a single GPU), so that would explain why it has such an impact.

Definitely true (but see below).

Or are the credits based on the actual Flops required per WU?

One of the first definitions of the Cobblestone (the unit of BOINC credits) was 1 GigaFLOPS == 200 Cobblestones. This is what the standard BOINC server code still uses for the "Current GigaFLOPS" on the server status page, it is just the cumulated RAC of all participants divided by 200. PrimeGrid obviously changed the code to show TeraFLOPS instead of GigaFLOPS in order to avoid large numbers; I don't know if they also changed the formula.

However, despite that definition, the answer to your question is no. Even without obvious deviations (e.g., the long job bonus and the conjecture bonus), it would be impossible to accurately measure the actual computing power with just one number, because the different applications do different things. For example, WW would not contribute to the FLOP count at all because it is doing integer operations. Therefore, one would need either separate statistics for different kinds of operations, or conversion factors. While the latter sounds easy, it would be incredibly hard (if not impossible) to find a set of factors that does not lead to an even bigger mess than the current credit system (e.g., it could easily result in different credits for the same Genefer task on different CPUs/GPUs).
____________

Profile Michael GoetzProject donor
Volunteer moderator
Project administrator
Avatar
Send message
Joined: 21 Jan 10
Posts: 13650
ID: 53948
Credit: 285,507,418
RAC: 40,567
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,132,712)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,479,203)PPS LLR Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,606)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (78,031,938)WW Sapphire: Earned 20,000,000 credits (32,204,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 150603 - Posted: 12 Jun 2021 | 12:37:53 UTC - in response to Message 150599.

One of the first definitions of the Cobblestone (the unit of BOINC credits) was 1 GigaFLOPS == 200 Cobblestones. This is what the standard BOINC server code still uses for the "Current GigaFLOPS" on the server status page, it is just the cumulated RAC of all participants divided by 200. PrimeGrid obviously changed the code to show TeraFLOPS instead of GigaFLOPS in order to avoid large numbers; I don't know if they also changed the formula.


I'm the person who added those statistics to PrimeGrid's server status page, so I can talk about this authoritatively.

As you say, the standard in BOINC servers is to use the GFLOP/Cobblestone formula to reverse engineer the total GFLOPs. I was not at all satisfied with this, as it's got many, many flaws, but to paraphrase, "It's the worst imaginable system; except for all the rest."

Any other way of calculating GFLOPs has worse problems, especially since we have some non-BOINC ways of getting credit such as PRPNet and manual sieving. But even without that, it would be very, very hard to "count" GFLOPs task by task accurately.

RAC is simply the best estimate we have of total GFLOPs.

Furthermore, it's the way *every* BOINC project does it, so it gives us an apples-to-apples comparison to everyone else. As flawed as it is, at least it's measuring the same thing at each project.

Getting back to the original question, I don't think anyone mentioned one of the major factors in the decrease: It's summer in the northern hemisphere. It's too hot to crunch.
____________
My lucky number is 75898524288+1

Post to thread

Message boards : Number crunching : Flops decreasing

[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2021 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 3.32, 3.37, 3.75
Generated 27 Sep 2021 | 4:40:18 UTC