Primegrid 50th Anniversary of the Moon Landing Challenge

This section is where you can post topics related to Challenges from other websites, such as Formula-BOINC, SETI-Germany and BOINCstats, as well as project challenges such as from WCG, PrimeGrid et al.

As a Team, we really want to engage as many team members with these challenges, as this gives us a great way of attracting more members to our Team...plus we get to show our strengths as a Team by (hopefully) doing well in each one.

PS: I have moved lots of topics into this section where they are relevant...as you can see, we've always been happy to take part in Challenges...and long may that continue ;-)
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UBT - Mikee
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Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Mikee » Tue Jul 16, 2019 5:55 pm

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
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UBT - Timbo
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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Tue Jul 16, 2019 6:34 pm

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

UBT - Mikee
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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Mikee » 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
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Woodles
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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by Woodles » 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>
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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by Woodles » Wed Jul 17, 2019 8:23 am

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! :doh:

Mark

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by Jeffers » Wed Jul 17, 2019 9:46 am

Ok, Primegrid resumed and options set as per earlier recommendations.
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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Wed Jul 17, 2019 11:12 am

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Wed Jul 17, 2019 2:21 pm

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

UBT - Mikee
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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Mikee » Wed Jul 17, 2019 6:51 pm

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
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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Thu Jul 18, 2019 11:45 am

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Fri Jul 19, 2019 5:54 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Sat Jul 20, 2019 12:47 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Chris Suddick » 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.

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Sat Jul 20, 2019 6:37 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Sat Jul 20, 2019 7:21 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Sat Jul 20, 2019 8:21 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Sat Jul 20, 2019 9:22 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by UBT - Timbo » Sat Jul 20, 2019 10:00 pm

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

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Re: Primegrid 50th Anniversary of the Moon Landing Challenge

Post by chriscambridge » Sat Jul 20, 2019 10:22 pm

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.

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