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PrimeGrid Races 2018

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StefanR5R said:
Here is a comparison between AWS EC2 prices (regular rates, not spot prices) [...]
  • An AWS p3.2xlarge instance (one Tesla V100) costs $3.823 per hour in region "EU (Frankfurt)". This is ~$13 per GFN21 task. Note, I never dealt with cloud computing, and didn't browse the AWS pages much, so I may have missed something important in this quick "research".
Click to expand...
PS: The current so-called spot price at Amazon EC2 would be about 1/3rd of that. (Downsides of spot pricing: AWS may change the price every hour. Availability of spot instances may be limited. A spot instance may be shut down by AWS at any time; you either have to bet on the task being finished before such an event, or deal with shutdown and restore of the VM.) Still pretty expensive.
 
Day 6 stats:

Rank___Credits____Username
9______25833286___xii5ku
21_____17115321___Howdy2u2
51_____7200912____iwajabitw
66_____5403347____emoga
73_____4954054____Howdy2u2
111____2840060____Ken_g6
174____1349772____zzuupp
247____450504_____SlangNRox
280____300412_____IEC

Rank__Credits____Team
3_____162269531___Czech National Team
4_____161433691___SETI.Germany
5_____78600295___Crunching@EVGA
6_____65447672___TeAm AnandTech
7_____50802219___Rechenkraft.net
8_____45016228___AMD Users
9_____43478844___BOINC@MIXI

That's funny, earlier today I thought I saw @TennesseeTony near the top of the stats. But he's disappeared again. 🙁 I wonder what would happen if I changed my name to "xii5ku"? Or should we all just change our names to "Spartacus"? 😛

Anyway, TeAm rank continues to go well. If AMD is bunkering, they're still bunkering.
 
LOL. Thought I'd go ahead and give my Christmas present to Howdy, but some weird s*** has occurred. 😀

I am officially OUT of this race, it is typically a 3 day long Sieve event, not 10 days, so....I think I've given enough, now back to Folding. Enjoy catching up and passing me, my only goal is to 1.) contribute to a TeAm effort and 2.) beat Michael Goetz for the year. 😉 If a mod isn't as motivated as I am, I'll only be a BIT more motivated than they are. 😉
 
TennesseeTony said:
LOL. Thought I'd go ahead and give my Christmas present to Howdy, but some weird s*** has occurred. 😀

I am officially OUT of this race, it is typically a 3 day long Sieve event, not 10 days, so....I think I've given enough, now back to Folding. Enjoy catching up and passing me, my only goal is to 1.) contribute to a TeAm effort and 2.) beat Michael Goetz for the year. 😉 If a mod isn't as motivated as I am, I'll only be a BIT more motivated than they are. 😉
Click to expand...
Folding wise, I think you know how motivated I am, with my power bill at a all time high, and that was only a week of the bill at full power. Next month could be $700
 
Lucky Day 7 stats:

Rank___Credits____Username
9______32760596___xii5ku
17_____21482167___Howdy2u2
54_____8556128____iwajabitw
68_____6156179____emoga
76_____5707022___10esseeTony
106____3588804____Ken_g6
182____1500496____zzuupp
267____450941_____IEC
270____450504_____SlangNRox
344____150390_____bbhaag

Rank__Credits____Team
3_____193983831___Czech National Team
4_____191357312___SETI.Germany
5_____93807438___Crunching@EVGA
6_____80803232___TeAm AnandTech
7_____62819632___Rechenkraft.net
8_____53000846___AMD Users
9_____51156133___BOINC@MIXI

Lucky because for once everyone's name seems to be correct. 😛 And because we have a new racer in bbhaag. 🙂
 
Day 8 stats:

Rank___Credits____Username
7______40908247___xii5ku
15_____25858294___Howdy2u2
56_____9762992____iwajabitw
82_____6156179____emoga
86_____5707022___10esseeTony
106____4188725____Ken_g6
192____1651378____zzuupp
264____601151_____SlangNRox
290____450941_____IEC
316____301149_____bbhaag

Rank__Credits____Team
3_____226926846___Czech National Team
4_____225662417___SETI.Germany
5_____109480955___Crunching@EVGA
6_____95586084___TeAm AnandTech
7_____72903029___Rechenkraft.net
8_____62806578___AMD Users
9_____60190587___BOINC@MIXI

Looks like we're aiming for at least 10M points! 🙂

Now is a good time to look at your WUs, see which ones might not finish by the end of the race, and maybe abort them. And then maybe put that power to work on one of the other races going now.
 
At least... 120 M points?

PS,
during the last two days it almost seemed as if Crunching@EVGA fell into a hurry for some reason; not sure why...

;-P
 
StefanR5R said:
At least... 120 M points?

PS,
during the last two days it almost seemed as if Crunching@EVGA fell into a hurry for some reason; not sure why...

;-P
Click to expand...

Apparently not only do we need calendars, we need some calculators too!!!


Can we talk about that? It's not the "Darkside"
 
There is something which I don't like about the PPS-Sieve and Genefer subprojects: They easily destroy any hope of ever achieving a color-coordinated collection of PrimeGrid badges.
 
In order to know when to switch to "no new tasks", I checked the min/avg/max run times of GFN21 on the different host types which I am using in this challenge, using a spreadsheet. As a byproduct I calculated PPD from the average run times and average credits of all currently validated tasks. (All hosts run Linux. The two E5 hosts don't run GPU tasks.)

dual E5-2690 v4: 700,000 PPD​
dual E5-2696 v4: 980,000 PPD​
dual GTX 1080Ti: 810,000 PPD​

In comparison, the dual E5-2690 v4 gets only 370,000 PPD in GCW-Sieve and 165,000 PPD in PPS-LLR for example.

I suppose PPD and efficiency of cpuGFN21 are dramatically lower on CPUs which have less than ~25 MB L3 cache. Naturally I have such CPUs too, but I kept them at World Community Grid.

Edit:
OK, maybe not dramatically, but distinctly. Taking data from post #608 and assuming 149,000 credits per task on hosts which I did not test myself:

dual E5-2690 v4 @ 2.9 GHz, 2x quadchannel DDR4-2400, 2 tasks x 14 threads/task:​
350,000 PPD per socket​
25,000 PPD per physical core​
8,600 PPD per physical core and per GHz​
dual E5-2696 v4 @ 2.6 GHz, 2x quadchannel DDR4-2400, 4 tasks x 11 threads/task:​
490,000 PPD per socket​
22,000 PPD/core​
8,600 PPD/core/GHz​
i5-8600K @ 4.3 GHz, dualchannel DDR4-????, 1 task x 4 threads*:​
121,000 PPD per socket​
20,000 PPD/core counting 6 cores, or 30,000 PPD/core counting 4 cores​
4,700 PPD/core/GHz counting 6 cores, or 7,000 PPD/core/GHz counting 4 cores​
Ryzen 2700X @ 4.1 GHz, dualchannel DDR4-3466, 1 task x 8 threads:​
123,000 PPD per socket​
15,400 PPD/core​
3,800 PPD/core/GHz​

*) On Intel CPUs with 4 cores or more, but small cache and dual channel RAM, cpuGFN21 reportedly scales only up to 4 threads per task, and throughput remains the same or suffers if more threads than that are used, even if there are more cores to spare.
 
Last edited:
StefanR5R said:
At least... 120 M points?

PS,
during the last two days it almost seemed as if Crunching@EVGA fell into a hurry for some reason; not sure why...

;-P
Click to expand...

Hellooooo everyone, Ho Ho Ho Merry Christmas and a happy new year!

"Fell into a hurry", never heard that expression before. It means picked up the pace?
Maybe when a bunch of CPU tasks dropped, I am not sure why either.

Hope everyone has a great new year. Should be fun with the FB sprints, competition is though.
 
Day 9 stats:

Rank___Credits____Username
8______47700980___xii5ku
15_____30083461___Howdy2u2
56_____10517899___iwajabitw
89_____6156179____emoga
96_____5707022___10esseeTony
107____4790095____Ken_g6
194____1802391____zzuupp
280____601718_____IEC
284____601151_____SlangNRox
302____452139_____bbhaag
376____150932_____Kiska

Rank__Credits____Team
3_____259455527___Czech National Team
4_____257163547___SETI.Germany
5_____124723003___Crunching@EVGA
6_____108563972___TeAm AnandTech
7_____86295678___Rechenkraft.net
8_____72622456___AMD Users
9_____68329072___BOINC@MIXI

StefanR5R said:
The upcoming holidays will be doubly enjoyable, with this grueling race finally over and done with. :sweat:
Click to expand...
I hate to agree with you, but I do. :weary: Just three or four WUs left. 🙂
bill1024 said:
Hellooooo everyone, Ho Ho Ho Merry Christmas and a happy new year!
Click to expand...
And this to everyone on the TeAm, and to all the other teams too. 🙂
 
Last edited:
Well, I'd post final stats, but the stats seem to have an abnormal number of spaces in them, and that's broken my usual stats script.

Oh, well, here's a screenshot of the stats, anyway:

pgstats2018.png

Enjoy your holidays and happy new year, everybody! 🙂
 
Thanks for the final stats Ken. This race seemed tougher for me than some of the others I have participated in. Probably because I have been out of it for several months and had a hard time remembering how to configure my client.
Anyway, looks like we finished strong. Merry Christmas and Happy New Year to everyone.
 
Thanks for keeping score Ken, and OH!!!! I found a MASSIVE prime, it's #2 on this list!







Just so happens to coincide with the max number of days I will spend (all out) on any future PG race as well. 😀
 
Well, I will still beat my opponent, admin Michael Goetz. 😀 I just can't see putting too much more into a project than an admin does. 😉
 
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