PrimeGrid Challenges 2023

[jdiddy]

Got one last top 5k Prime on the final day. Coincidentally, both of the first 2 Primes below entered the T5K at rank 4,344

251843778^65536+1	550,577 (decimal)	2023-02-28 00:37:31 UTC	T5K, task	Generalized Fermat Prime Search	189.957
240956808^65536+1	549,319 (decimal)	2023-02-23 02:13:52 UTC	T5K, task	Generalized Fermat Prime Search	188.627
230766608^65536+1	548,089 (decimal)	2023-02-19 11:50:46 UTC	T5K, task	Generalized Fermat Prime Search	187.333

 

[TennesseeTony]

Congrats to Scott Brown for just getting his 100th prime, and otherwise sweeping the board for awards (most likely, but the plump lady hasn't sung yet).

 

[waffleironhead]

With just a few hours to go...
Congrats @Fardringle for making it on the board!

Fardringle

TeAm AnandTech

BOINC: GFN-16

25239781065536+1

550,640​

190.02295695596​

Tuesday 28th of February 2023 17:31:29 UTC

 

[Orange Kid]

....and the sorta, maybe final list

Fardringle	TeAm AnandTech	BOINC: GFN-16	25239781065536+1	550,640​	190.02295695596​	Tuesday 28th of February 2023 17:31:29 UTC
johnnevermind	TeAm AnandTech	BOINC: GFN-16	25184377865536+1	550,577​	189.95667718215​	Tuesday 28th of February 2023 00:37:31 UTC
waffleironhead	TeAm AnandTech	BOINC: GFN-16	25123941665536+1	550,509​	189.88422769118​	Monday 27th of February 2023 07:26:49 UTC
Orange Kid	TeAm AnandTech	BOINC: GFN-16	24757744665536+1	550,091​	189.44188154989​	Saturday 25th of February 2023 20:58:41 UTC
johnnevermind	TeAm AnandTech	BOINC: GFN-16	24095680865536+1	549,319​	188.62710139687​	Thursday 23rd of February 2023 02:13:52 UTC
Letin Noxe	TeAm AnandTech	BOINC: PPS-MEGA	7297·23458768+1	1,041,197​	1342.9434576386​	Monday 20th of February 2023 12:06:21 UTC
waffleironhead	TeAm AnandTech	BOINC: GFN-16	23443840665536+1	548,539​	187.8051372551​	Sunday 19th of February 2023 19:55:20 UTC
w a h	TeAm AnandTech	BOINC: GFN-16	23387872265536+1	548,471​	187.73361399417​	Sunday 19th of February 2023 18:24:25 UTC
w a h	TeAm AnandTech	BOINC: GFN-16	23200036265536+1	548,241​	187.49245224844​	Sunday 19th of February 2023 12:12:26 UTC
johnnevermind	TeAm AnandTech	BOINC: GFN-16	23076660865536+1	548,089​	187.33310110841​	Sunday 19th of February 2023 11:50:46 UTC
w a h	TeAm AnandTech	BOINC: GFN-16	22993722265536+1	547,987​	187.22555001806​	Sunday 19th of February 2023 07:25:26 UTC
w a h	TeAm AnandTech	BOINC: GFN-16	22972746665536+1	547,961​	187.19829494117​	Sunday 19th of February 2023 03:52:01 UTC
w a h	TeAm AnandTech	BOINC: GFN-16	22170714465536+1	546,950​	186.13912478228​	Sunday 19th of February 2023 03:30:40 UTC
w a h	TeAm AnandTech	BOINC: GFN-16	22932526265536+1	547,911​	187.14597155427​	Sunday 19th of February 2023 00:58:17 UTC
w a h	TeAm AnandTech	BOINC: GFN-17-MEGA	149665588131072+1	1,071,530​	1466.6278383742​	Sunday 19th of February 2023 00:42:56 UTC
waffleironhead	TeAm AnandTech	BOINC: GFN-16	22205785465536+1	546,995​	186.18614931149​	Saturday 18th of February 2023 02:31:38 UTC
waffleironhead	TeAm AnandTech	BOINC: GFN-16	22272116065536+1	547,079​	186.2749069879​	Friday 17th of February 2023 15:50:38 UTC
Mardis	TeAm AnandTech	BOINC: GFN-16	22089303265536+1	546,845​	186.02970916141​	Friday 17th of February 2023 02:40:50 UTC
waffleironhead	TeAm AnandTech	BOINC: GFN-16	21856482065536+1	546,543​	185.71480259338​	Thursday 16th of February 2023 22:20:05 UTC
Mardis	TeAm AnandTech	BOINC: GFN-16	22081690465536+1	546,835​	186.01945926644​	Wednesday 15th of February 2023 15:37:07 UTC
biodoc	TeAm AnandTech	BOINC: GFN-16	22039440865536+1	546,780​	185.96251691531​	Wednesday 15th of February 2023 10:43:04 UTC
Orange Kid	TeAm AnandTech	BOINC: GFN-16	21828956865536+1	546,507​	185.67737527134​	Tuesday 14th of February 2023 16:08:35 UTC
10esseeTony	TeAm AnandTech	BOINC: GFN-16	21476648465536+1	546,044​	185.19456886902​	Monday 13th of February 2023 14:49:45 UTC
Orange Kid	TeAm AnandTech	BOINC: GFN-16	21394311065536+1	545,935​	185.08071495512​	Sunday 12th of February 2023 11:00:02 UTC
Orange Kid	TeAm AnandTech	BOINC: GFN-16	20415218865536+1	544,602​	183.6960227275​	Tuesday 7th of February 2023 16:07:33 UTC
Ken_g6	TeAm AnandTech	BOINC: GFN-16	19998842265536+1	544,015​	183.08913144787​	Sunday 5th of February 2023 22:57:09 UTC
kiska	TeAm AnandTech	BOINC: GFN-16	19693174665536+1	543,577​	182.63639032671​	Saturday 4th of February 2023 12:49:08 UTC
kiska	TeAm AnandTech	BOINC: GFN-16	19553380465536+1	543,374​	182.42724193007​	Saturday 4th of February 2023 00:51:06 UTC
w a h	TeAm AnandTech	BOINC: PPS-MEGA	3719·23451667+1	1,039,059​	1334.50121649​	Friday 3rd of February 2023 13:54:41 UTC

 

[Fardringle]

With just a few hours to go...
Congrats @Fardringle for making it on the board!

​

Fardringle

TeAm AnandTech

BOINC: GFN-16

25239781065536+1

550,640​

190.02295695596​

Tuesday 28th of February 2023 17:31:29 UTC

I actually got one? Neat! My profile page on the project site still has a big fat zero....

edit: It's showing now, about 12 hours later. Finally got my very first prime.
I did have one "double-check" from a few years ago, and some APs, but no primes until now.

 

[waffleironhead]

Bump:
Under 24 hours till the next Challange.

 

[Markfw]

I'm going to put my 7950x3d on this with core count 2(SMT is on, so its like one core), just to see how it does.

 

[Markfw]

what is a good time for a "Sophie Germain (LLR) v8.10 (mt) " ?? 2C config. I am doing about 630 seconds. Is that good ? about 5700 ppd ??

 

[waffleironhead]

I would think that would be doing better, but no idea why it isnt.
my times
3700x:577 seconds
5700g:625 seconds
5500u:763 seconds
i7-6700:725 seconds
I5-4460:838 seconds
2400g:1951 seconds
z8700(atom):8653 seconds

 

[emoga]

@Markfw
You would do better just using 1C and setting 50% on you cpus and pinned the tasks to real cores using Process Lasso or AffinityWatcher.
For reference, I'm getting an average of 294 seconds on a '2D' 7950x in windows (4.5 at 1.0V) with cpu pinning.
My host link: here

 

[Markfw]

@Markfw
You would do better just using 1C and setting 50% on you cpus and pinned the tasks to real cores using Process Lasso or AffinityWatcher.
For reference, I'm getting an average of 294 seconds on a '2D' 7950x in windows (4.5 at 1.0V) with cpu pinning.
My host link: here

Linux, so no lasso or anything like that. It should be a little slower, UNLESS the extra cache makes a difference, which for this unit, NO.

 

[emoga]

You could try turning SMT off in bios and run 16 tasks instead.

I bet it would be faster than what you have now

 

[Markfw]

You could try turning SMT off in bios and run 16 tasks instead.

I bet it would be faster than what you have now View attachment 77807

at 1T (30 tasks) its running now 9:40 or 6100 ppd, so yes, its better, and thats with smt on.

I have the 4090 on that system running, so I don't want to reboot, just testing.

 

[emoga]

Try 16 tasks total.

Just set your cpus to 50% if you already have the 1T config set.

You should be able to complete 'more tasks per day' than running 30 tasks.

 

[Markfw]

Try 16 tasks total.

Just set your cpus to 50% if you already have the 1T config set.

You should be able to complete 'more tasks per day' than running 30 tasks.

OK, I did that. We will see in 10 minutes.

 

[Markfw]

OK, I did that. We will see in 10 minutes.

Now its doing them in 6 minutes each ! or 9600 PPD (360 secs per unit)

 

[emoga]

Then your previous config is more PPD (30 tasks at 9:40 is better than 16 tasks at 6:00)

Seems like running on all threads with SGS isn't as bad I thought. (at least on a 7950x)

I'll run some numbers on mine and see what happens.

 

[Markfw]

Let me know before the night is here, as it starts at 6 am, and I am not waking up that early for this.

 

[emoga]

Use your previous 30 task config.

I don't normally run SGS, but it seems that it's the one sub-project where the normal methods of optimization can be thrown out the window. (at least on a 7950x)

 

[Markfw]

I found a prime !
Workunit 894135077 : 7781734928487*2^1290000-1 (388342 digits)

 

[StefanR5R]

For a "no SMT config" on Windows:

You would do better just using 1C and setting 50% on you cpus and pinned the tasks to real cores using Process Lasso or AffinityWatcher.

On Linux, CPU affinity binding is not really necessary. Just letting the kernel doing its thing is very close to forced affinity. (For single-threaded tasks, that is. SGS-LLR works best single-threaded.)

I haven't checked what happens with SMT enabled configs. My *guesses*:
– Maybe newest CPU architectures get better throughput from it, if the CPU is not power-limited.
– I presume Joule/task is higher than without using SMT.

 

[TennesseeTony]

Single threaded, my Ryzen 9 5900X is completing SGS tasks in 875 seconds (Windows 10). Congrats on the Prime find! Your cpu has AVX512 , which is a big boost on these tasks.

 

[Markfw]

Single threaded, my Ryzen 9 5900X is completing SGS tasks in 875 seconds (Windows 10). Congrats on the Prime find! Your cpu has AVX512 , which is a big boost on these tasks.

I have 3 7950x's and a 7950x3d working this challenge. They are down-watted to 142 watts, the same as a 5950x, and they are doing 30 of them at a time in 553 seconds.

Yup, they rock ! Not to mention at the same time putting out 10-29 million ppd each depending on the video card.

 

[Ken g6]

Day 0.25 stats:

Rank___Credits____Username
2______1623723____[TA]Skillz
7______678371_____crashtech
9______456930_____w a h
10_____440605_____xii5ku
29_____175499___10esseeTony
39_____122135_____cellarnoise2
45_____103495_____biodoc
61_____68771______Orange Kid
68_____55879______markfw
74_____51528______Fardringle
89_____42348______waffleironhead
139____18958______Skivelitis2
140____18879______Ken_g6
155____14847______Letin Noxe
167____12971______johnnevermind
168____12852______Mardis

Rank__Credits____Team
1_____3885067____TeAm AnandTech
2_____3543087____BOINC@AUSTRALIA
3_____2308521____Antarctic Crunchers
4_____1900005____SETI.Germany

 

[Fardringle]

A little bit past 0.5 day stats.

Rank	Name	Score	Tasks
2	[TA]Skillz	4 660 308.53	116 760
8	crashtech	1 461 116.09	36 607
12	w a h	1 011 250.23	25 336
13	xii5ku	918 052.04	23 001
29	10esseeTony	383 928.64	9 619
39	markfw	263 110.26	6 592
40	cellarnoise2	262 431.73	6 575
46	biodoc	221 480.40	5 549
65	Orange Kid	143 728.77	3 601
74	Fardringle	114 991.00	2 881
89	waffleironhead	92 958.71	2 329
136	Letin Noxe	45 980.43	1 152
139	Skivelitis2	44 982.59	1 127
147	johnnevermind	39 554.35	991
148	Ken_g6	39 474.52	989
184	Mardis	22 511.25	564
281	kiska	4 510.23	113
371	geecee	319.31	8

Rank	Name	Score	Tasks
1	TeAm AnandTech	9 708 058.08	243 227
2	BOINC@AUSTRALIA	7 592 718.66	190 229
3	Antarctic Crunchers	5 127 536.79	128 466
4	SETI.Germany	4 438 947.86	111 214
5	Czech National Team	3 944 019.58	98 814