Page 1 of 1
Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Tue Jul 16, 2019 5:55 pm
by UBT - Mikee
Hi
Started last night but runs for 5 days. Only tasks downloaded and completed during the race count. CPU only.
http://www.primegrid.com/forum_thread.php?id=8635
To participate in the Challenge, please select only the Proth Prime Search LLR (PPS) project in your PrimeGrid preferences section. The challenge will begin 15th July 2019 20:17 UTC and end at 20th July 2019 20:17 UTC. Note that PPSE, PPS Mega and PPS-Sieve do not count towards this challenge.
I downloaded a couple before the start to see what they were like. On this Ryzen system they take about 20 hours and get around 5000 credits each. They use all cores available. So if you have 4 cores/threads each WU will use 4 cores, though I'm running at 75% at the moment so have three tasks running. I assume that if you have a 2 core system then it will use them but will probably take twice as long.
Currently we're running 54th out of 102 teams.
Participants are...
256 Sean
270 Paul Griffin
297 Stephen Brown
310 Meddy2065
317 LupusUK
352 Gordon Lack
362 Rimmer161
I won't appear 'til tomorrow sometime as I'm not running 24/7 at the mo.
Anyone else want to join?
Mike
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Tue Jul 16, 2019 6:34 pm
by UBT - Timbo
Hi Mike
Good call....I was wondering what to do with my CPUs until the next Sprint...and sadly, I've already filled my cache with some WCG and SETI CPU tasks, as well as a few left-over MilkyWay tasks.
But once they are done with, I'll let PrimeGrid grab some PPS LLR tasks.
Also please note:
Application builds are available for Linux 32 and 64 bit, Windows 32 and 64 bit and MacIntel. Intel CPUs with FMA3 capabilities (Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake) will have a very large advantage, and Intel CPUs with AVX-512 (certain recent Intel Skylake-X and Xeon CPUs) will be the fastest.
ATTENTION: The primality program LLR is CPU intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors."
Credits seem to be fixed at 167.xx per validated task.
Here's a link to the user stats on this Challenge:
http://www.primegrid.com/challenge/2019 ... users.html
...and the Team stats are here:
http://www.primegrid.com/challenge/2019 ... teams.html
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 7:35 am
by UBT - Mikee
Hi
What a bungle! For some weird reason I was doing "The Riesel Problem LLR (TRP)" I'm sure I selected "Proth Prime Search LLR (PPS)" and I probably did but forgot to save! So forgot anything I said about 4 CPU and stuff!
Mike
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 8:22 am
by Woodles
Hi All,
Not taking part in this as I'm busy doing other stuff but for those that are, from past experience PPS runs best when all the table can fit in the cache which is with two threads per task for most modern CPUs. Older Xeons with bigger caches are better with one thread per task but it's fairly close either way.
Code: Select all
<app_config>
<app_version>
<app_name>llrPPS</app_name>
<cmdline>-t 2</cmdline>
<avg_ncpus>2</avg_ncpus>
</app_version>
</app_config>
Almost as good (97%) is one
CORE per task (turn hyperthreading off)
Code: Select all
<app_config>
<app_version>
<app_name>llrPPS</app_name>
<cmdline>-t 1</cmdline>
<avg_ncpus>1</avg_ncpus>
</app_version>
</app_config>
On my i7 previously:
8 threads per task: 167 tasks per day - 27,884 cr/d
4 threads per task: 2*97 tasks per day - 32,409 cr/d
2 threads per task: 4*50 tasks per day - 33,996 cr/d
1 core per task (hyperthreading off): 4*49 tasks per day; 32,992 cr/d
Mark
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 8:23 am
by Woodles
UBT - Mikee wrote: ↑Wed Jul 17, 2019 7:35 am
Hi
What a bungle! For some weird reason I was doing "The Riesel Problem LLR (TRP)" I'm sure I selected "Proth Prime Search LLR (PPS)" and I probably did but forgot to save! So forgot anything I said about 4 CPU and stuff!
Mike
i thought 20 hours and 5000 credits sounded wrong!
Mark
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 9:46 am
by Jeffers
Ok, Primegrid resumed and options set as per earlier recommendations.
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 11:12 am
by UBT - Timbo
Hi all
10am Wednesday stats:
Code: Select all
Posn Name Team Credits
264 Sean UK BOINC Team 13,437.20
272 meddy2065 UK BOINC Team 11,412.06
293 UBT - Timbo UK BOINC Team 8,404.71
303 Stephen Brown UK BOINC Team 7,393.29
324 Paul Griffin UK BOINC Team 5,038.09
355 LupusUK UK BOINC Team 2,684.60
356 Rimmer161 UK BOINC Team 2,520.46
365 UBT - Mikeejones UK BOINC Team 2,187.72
403 Gordon Lack UK BOINC Team 1,174.46
436 Jeffers2112 UK BOINC Team 673.34
522 duncanr UK BOINC Team 168.04
Code: Select all
Posn Team Credits
45 UK BOINC Team 49,893.85
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 2:21 pm
by UBT - Timbo
Woodles wrote: ↑Wed Jul 17, 2019 8:22 am
Hi All,
Not taking part in this as I'm busy doing other stuff but for those that are, from past experience PPS runs best when all the table can fit in the cache which is with two threads per task for most modern CPUs. Older Xeons with bigger caches are better with one thread per task but it's fairly close either way.
Code: Select all
<app_config>
<app_version>
<app_name>llrPPS</app_name>
<cmdline>-t 2</cmdline>
<avg_ncpus>2</avg_ncpus>
</app_version>
</app_config>
Almost as good (97%) is one
CORE per task (turn hyperthreading off)
Code: Select all
<app_config>
<app_version>
<app_name>llrPPS</app_name>
<cmdline>-t 1</cmdline>
<avg_ncpus>1</avg_ncpus>
</app_version>
</app_config>
snip
And don't forget to also add in:
Code: Select all
<app>
<app_name>llrPPS</app_name>
<max_concurrent>x</max_concurrent>
</app>
where x is the number of tasks you want to run - the default is "1" if this tag isn't used....so, on my 16-core Xeon, only 1 task using 4 cores was in use.
Adding the above and making x=4, allows me to have 4 tasks running at the same time with each task using 4 cores.
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Wed Jul 17, 2019 6:51 pm
by UBT - Mikee
Hi
Now I'm shifting!
Team up to 40th and I've got some credits up. Turned off the AMD version of hyper-threading to see if it makes much difference, so now running 7 cores instead of 13 threads - odd numbers but that's the way it is!
Mike
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Thu Jul 18, 2019 11:45 am
by UBT - Timbo
Hi all
11am Thursday stats:
Code: Select all
Posn Name Team Credits
256 UBT - Timbo UK BOINC Team 33,466.89
268 meddy2065 UK BOINC Team 27,063.38
285 UBT - Mikeejones UK BOINC Team 20,387.21
287 Sean UK BOINC Team 19,677.37
294 Jeffers2112 UK BOINC Team 16,685.35
308 Stephen Brown UK BOINC Team 14,469.45
326 Paul Griffin UK BOINC Team 10,771.63
366 UBT - Chris Suddick UK BOINC Team 5,392.30 (**new**)
368 Rimmer161 UK BOINC Team 5,385.23
393 LupusUK UK BOINC Team 3,695.83
413 Gordon Lack UK BOINC Team 2,858.24
437 UBT - Ed Little UK BOINC Team 1,854.02 (**new**)
628 duncanr UK BOINC Team 168.04
Code: Select all
Posn Team Credits
37 UK BOINC Team 156,674.84
We now have 13 members on this Challenge (up from 11) and we've moved up a couple of places to 37th.
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Fri Jul 19, 2019 5:54 pm
by UBT - Timbo
Hi all
5pm Friday stats:
Code: Select all
Posn Name Team Credits
264 UBT - Timbo UK BOINC Team 48,632.92
267 meddy2065 UK BOINC Team 45,974.60
276 UBT - Mikeejones UK BOINC Team 40,343.12
280 Jeffers2112 UK BOINC Team 39,342.78
281 Sean UK BOINC Team 37,604.70
292 ncoded.com UK BOINC Team 31,840.29 (**new**)
314 Stephen Brown UK BOINC Team 23,933.81
333 Paul Griffin UK BOINC Team 17,867.41
341 UBT - Chris Suddick UK BOINC Team 15,693.36
380 Rimmer161 UK BOINC Team 8,936.66
415 LupusUK UK BOINC Team 5,725.76
466 Gordon Lack UK BOINC Team 2,858.24
491 UBT - Ed Little UK BOINC Team 1,854.02
562 Jason UK BOINC Team 845.15 (**new**)
723 duncanr UK BOINC Team 168.04
Code: Select all
Posn Team Credits
33 UK BOINC Team 316 ,420.75
15 members now crunching and UBT now up to 33rd place (out of 165 teams).
My contribution has been hampered by the fact that one of my PCs stopped downloading new PG tasks...it ran dry sometime on Thursday night
It's back crunching again now though !!
PS: Anyone else notice that the fixed credits awarded per task are slowly increasing - they started at around 167.xx and my latest tasks are earning 169.50 credit per validated task
Still not enough to be significant...but interesting that it is increasing.
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 12:47 pm
by UBT - Timbo
Hi all
12 noon Saturday stats:
Code: Select all
Posn Name Team Credits
169 ncoded.com UK BOINC Team 135,476.38
256 UBT - Timbo UK BOINC Team 72,352.95
268 Jeffers2112 UK BOINC Team 57,302.97
270 meddy2065 UK BOINC Team 56,303.71
278 UBT - Mikeejones UK BOINC Team 48,822.31
284 Sean UK BOINC Team 44,381.79
329 Stephen Brown UK BOINC Team 24,951.52
336 UBT - Chris Suddick UK BOINC Team 22,296.89
350 Paul Griffin UK BOINC Team 17,867.41
383 Rimmer161 UK BOINC Team 11,648.26
403 LupusUK UK BOINC Team 8,438.56
487 Gordon Lack UK BOINC Team 2,858.24
521 UBT - Ed Little UK BOINC Team 1,854.02
594 Jason UK BOINC Team 845.15
767 duncanr UK BOINC Team 168.04
Code: Select all
Posn Team Credits
30 UK BOINC Team 500,368.09
ChrisC now leads our merry bunch of 15 members and we're now in the Top 30 teams.
Just 9 hours left of this Challenge which ends tonight at 20:17 UTC - 50 years to the minute after Apollo 11 lands on the Moon.
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 4:01 pm
by UBT - Chris Suddick
We're up to 29th now and chasing Denmark hard. The gap then gets very big so I think 28th will be our limit if we get that.
Chris.
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 6:37 pm
by UBT - Timbo
UBT - Chris Suddick wrote: ↑Sat Jul 20, 2019 4:01 pm
We're up to 29th now and chasing Denmark hard. The gap then gets very big so I think 28th will be our limit if we get that.
Chris.
Hi Chris
We've passed Denmark now - and closing on Noobs
Code: Select all
Posn Team Credits
27 Noobs Of Kryta [NOOB] 705,766.94
28 UK BOINC Team 576,180.59
29 BOINC@Denmark 571,489.78
So, unless there's some minor miracle, with 130,000 credits coming our way in the next 3 hours, then 28th is where we'll stay
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 7:21 pm
by UBT - Timbo
Hi all
7:15pm Saturday stats - just 2 hours to go !!
Code: Select all
Posn Team Credits
27 Noobs Of Kryta [NOOB] 711,202.83
28 UK BOINC Team 582,287.59
29 BOINC@Denmark 575,228.29
We've slightly increased the gap to Denmark to about 7,000 (was 4,700) but gap to 27th place is still about 130,000
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 8:21 pm
by UBT - Timbo
Hi all
8:15pm Saturday stats - 1 hour to go
Code: Select all
Posn Team Credits
27 Noobs Of Kryta [NOOB] 715,961.38
28 UK BOINC Team 595,691.19
29 BOINC@Denmark 580,157.03
Gaps now 120,000 and 15,500...
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 9:22 pm
by UBT - Timbo
Hi all
9:15pm Saturday stats:
Code: Select all
Posn Team Credits
27 Noobs Of Kryta [NOOB] 722,589.93
28 UK BOINC Team 609,096.42
29 BOINC@Denmark 585,085.81
There should in theory be one more update, as the Challenge ends at 20:17 UTC - so the next update should be the final one.
regards
Tim
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 10:00 pm
by UBT - Timbo
Hi all
9:45pm Saturday - Final stats for Challenge
Code: Select all
Posn Name Team Credits
141 ncoded.com UK BOINC Team 201,957.02
251 UBT - Timbo UK BOINC Team 82,523.77
263 Jeffers2112 UK BOINC Team 66,815.90
272 meddy2065 UK BOINC Team 62,062.73
276 UBT - Mikeejones UK BOINC Team 58,334.05
285 Sean UK BOINC Team 47,269.05
335 UBT - Chris Suddick UK BOINC Team 25,003.77
336 Stephen Brown UK BOINC Team 24,951.52
355 Paul Griffin UK BOINC Team 17,867.41
389 Rimmer161 UK BOINC Team 11,648.26
399 LupusUK UK BOINC Team 10,137.46
480 Gordon Lack UK BOINC Team 3,367.92
533 UBT - Ed Little UK BOINC Team 1,854.02
614 Jason UK BOINC Team 845.15
786 duncanr UK BOINC Team 168.04
Code: Select all
Posn Team Credits
27 Noobs Of Kryta [NOOB] 723,099.87
28 UK BOINC Team 609,605.97
29 BOINC@Denmark 585,085.81
So, well done to ChrisC for his magnificent contribution of over 200,000 credits, otherwise, we'd have ended in 34th place and not 28th
And big thanks to those who knowingly joined in and helped us to do well in this Challenge.
regards
Tim
PS: For those who love stats, take a look over here:
http://www.primegrid.com/forum_thread.php?id=8635
Re: Primegrid 50th Anniversary of the Moon Landing Challenge
Posted: Sat Jul 20, 2019 10:22 pm
by chriscambridge
Yeah it was a good challenge, the threadrippers really hold their own.
Well done to everyone.. 600K / 3600 WUs is an excellent result for a few days team crunching.