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#16 Re: New to PrimeGrid

Posted: Fri Mar 08, 2019 8:38 am
by davidbam
Heh - at my age I've even stopped buying green bananas

#17 Re: New to PrimeGrid

Posted: Fri Mar 08, 2019 8:43 am
by poppageek
The 280x for some reason has a high error rate on e@h so I had it on MW@H but they have been so unreliable I decided to try PG. Do not really care about primes but the project itself is interesting and seemingly well run. The 1080 always did well on E@H. Since I passed 1 billion on E@H I am more interested in trying new things. I appreciated a well managed and reliable project. So I am thinking I may stick with PG for whatever time I have before I have to shut down GPUs due to heat. I am hoping for a cool spring and early summer.

The rest of my GPUs are 3 AMD 7870, R9 270, RX 560 and RX 570, 750TI and 660TI. Last 2 on MW@H and seti. Rest still on E@H.

#18 Re: New to PrimeGrid

Posted: Fri Mar 08, 2019 8:47 am
by davidbam
We have benchmarking software if you are interested e.g. https://tsbt.co.uk/forum/viewtopic.php? ... 083#p69083

Just post a copy/paste of 20 validate WU from ONE computer into that topic and I'll do the rest. Would need to know which GPU and O/S you were using too please

#19 Re: New to PrimeGrid

Posted: Fri Mar 08, 2019 11:19 am
by scole of TSBT
poppageek wrote: Fri Mar 08, 2019 8:34 am OK talk about big boy pants. One of the XS guys just got this work unit. I gotta ask; would you run this work unit? Look at some of the run times!
19,053,214.77 seconds! :o :shock:
http://www.rnaworld.de/rnaworld/workuni ... id=6330825
Run it! RNA World WUs are difficult to get. They do run a long, along time...month or more. But you can suspend them if needed to run other projects. They are very forgiving too. Even it it errors out or you abort it, you will get credit for time worked on. It wouldn't take that many RNA WUs to get in the FB standings on that project.

#20 Re: New to PrimeGrid

Posted: Fri Mar 08, 2019 11:57 am
by poppageek
Dark Angel is who got it and he is running it. Said it was single thread so no biggie.

#21 Re: New to PrimeGrid

Posted: Mon Mar 11, 2019 1:43 am
by poppageek
My 750k genefer that sat in Inconclusive for a week was marked Invalid. Ouch. p21

#22 Re: New to PrimeGrid

Posted: Mon Mar 11, 2019 3:40 am
by davidbam
Ouch indeed :-(

#23 Re: New to PrimeGrid

Posted: Thu Mar 14, 2019 1:56 pm
by davidbam
You are hammering up the points for today though [mention]poppageek[/mention] - much appreciated. This table auto-updates

#24 Re: New to PrimeGrid

Posted: Thu Mar 14, 2019 3:26 pm
by poppageek
I had a Feeling Lucky? work unit go valid for 944k. So won't be a normal day. :wink:

#25 Re: New to PrimeGrid

Posted: Fri Apr 05, 2019 1:07 pm
by davidbam
[mention]poppageek[/mention] you inspired me to try some big WU

Just got paid 706K for a Genefer22 but I see my slower CPU and slower GPU meant it took twice as long as the other guy https://www.primegrid.com/workunit.php?wuid=604676133

#26 Re: New to PrimeGrid

Posted: Fri Apr 05, 2019 3:39 pm
by Bryan
PG does best if you turn off hyper threading. It is very tight code.

#27 Re: New to PrimeGrid

Posted: Fri Apr 05, 2019 3:41 pm
by davidbam
Ah thank you, I do remember seeing that somewhere before. I'll put it in the forum header box

#28 Re: New to PrimeGrid

Posted: Fri Apr 05, 2019 8:10 pm
by davidbam
Hmmm - Rather than lose 32 threads turning off hyperthreading on my Threadripper, I think I'll reconfigure to run PrimeGrid on something else. I have a Xeon(R) CPU E5-2609 v3 which can't HT but that only runs at 1.90GHz.

Seems like a Pentium with many MHz and not many cores would be the ideal CPU to drive 3 nVidia cards on PrimeGrid

#29 Re: New to PrimeGrid

Posted: Fri Apr 05, 2019 11:16 pm
by Bryan
I may be mistaken but I think PG will use AVX2 if the machine has that capability.

#30 Re: New to PrimeGrid

Posted: Fri Apr 05, 2019 11:19 pm
by davidbam
Pretty smart stuff this PG. I'll put another 1080 on the E5-2609 v3 and see how it works out

Thank you

#31 Re: New to PrimeGrid

Posted: Sat Apr 06, 2019 7:33 am
by davidbam
:D :D Landed a 944K WU from the gtx1660ti last night https://www.primegrid.com/workunit.php?wuid=606226087

Took 50 hours given the rather modest GPU / CPU involved (HT is on). My wingman was just under half that time on superior kit

#32 Re: New to PrimeGrid

Posted: Sat Apr 06, 2019 12:45 pm
by Bryan
My comments were based on running it on CPU. If you are just doing GPU then HT makes no difference.

#33 Re: New to PrimeGrid

Posted: Sat Apr 06, 2019 1:01 pm
by davidbam
Ah - I misunderstood. I thought you were referring to the (not inconsiderable amount of) code which still ran on the CPU to keep the GPU busy :P

#34 Re: New to PrimeGrid

Posted: Sat Apr 13, 2019 10:19 pm
by poppageek
While I have very little interest in Prime numbers I think Prime Grid is the most interesting and well done project and web site of any I have participated. I'm off it now but plan on returning sometime this fall. Summer heat means much fewer crunchers. Sad times. :-(

#35 Re: New to PrimeGrid

Posted: Sun Apr 14, 2019 12:20 am
by scole of TSBT
If you have CPU cores that you can keep cool the Generalized Cullen Woodall Sieve pays well for a CPU app and you can also earn a sub-project badge. That sub-project is going to shut down May 1st I think so get it while you can.

They recently revived the 321 Sieve app and it pays even better on CPU. Not sure how long it remain active.

#36 Re: New to PrimeGrid

Posted: Wed Apr 17, 2019 5:40 am
by poppageek
You guys got me thinking PG again. I'd like to get in on that GCW work units but I am trying to get my 100 year on MCM on WCG. Only 4 more years, about 20-25 days _IF_ I can keep up current RAC. It is already hitting 80f or 27c here some days. I have shut down most of my GPUs on E@H to free up CPU cores. But IIRC some of PG GPU work units use very little CPU. So I put a 1080 and RX 570 on PG and will filter out the work units that use a lot of CPU.

We often have to shut down some of the machines during the afternoon and evening but roughly 18 hours a day is not too bad. More than nuthin' according to my calculations. ;-)

Hope all are doing well! Cheers! :obscene-drinkingcheers: