Primegrid Winter Solstice Challenge
Primegrid Winter Solstice Challenge
Now we're in our new home I guess we should try and promote some activity - not least because of the efforts of Tim and Janos to get this board up and running.
So - the time is approaching for Primegrid's Winter Solstice Challenge:
The end of the year is drawing closer and this is traditionally marked with the winter solstice challenge here at PrimeGrid. As in previous years we would like to invite everyone to join us in this celebration of tidings of comfort and joy by sieving away for the Proth Prime Search. The challenge will start on Dec 19 04:48 UTC and last for 72 hours.
For more information, cheery banter and general merrymaking please join us on the discussion board .
We hope to see you there and please do spread the word
I'll be there - and hopefully more will join in.
So - the time is approaching for Primegrid's Winter Solstice Challenge:
The end of the year is drawing closer and this is traditionally marked with the winter solstice challenge here at PrimeGrid. As in previous years we would like to invite everyone to join us in this celebration of tidings of comfort and joy by sieving away for the Proth Prime Search. The challenge will start on Dec 19 04:48 UTC and last for 72 hours.
For more information, cheery banter and general merrymaking please join us on the discussion board .
We hope to see you there and please do spread the word
I'll be there - and hopefully more will join in.
Re: Primegrid Winter Solstice Challenge
Sounds worthwhile and it's been a while since I did any Primegrid, count me in
Re: Primegrid Winter Solstice Challenge
All set up and ready to go. I'm not waking up at four in the morning to start crunching so I'm going to let this host just keep going and start adding when the 'old' WUs run out.
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Re: Primegrid Winter Solstice Challenge
Hi all,
OK - I'm in...only got 1x GTX580 available for it though, but it's something
edit: Now got a GTX560 Ti crunching too
Team stats are here:
http://www.primegrid.com/challenge/2015 ... teams.html
regards
Tim
OK - I'm in...only got 1x GTX580 available for it though, but it's something
edit: Now got a GTX560 Ti crunching too
Team stats are here:
http://www.primegrid.com/challenge/2015 ... teams.html
regards
Tim
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Re: Primegrid Winter Solstice Challenge
Hi Mark,Woodles wrote:All set up and ready to go. I'm not waking up at four in the morning to start crunching so I'm going to let this host just keep going and start adding when the 'old' WUs run out.
Try putting the following in an "app_config.xml" file in your Primegrid folder:
Code: Select all
<app_config>
<app>
<name>pps_sr2sieve</name>
<max_concurrent>2</max_concurrent>
<gpu_versions>
<gpu_usage>0.5</gpu_usage>
<cpu_usage>0.5</cpu_usage>
<rem you can try different cpu usage figures - maybe 0.1 is better>
</gpu_versions>
</app>
</app_config>
Or try here:
http://gaming.msi.com/features/afterburner
and click on Downloads
edit: I've started running 2x WU per GPU and so far, it looks like on my GPU, I can do 2 WU's at once, BUT the timings to complete each WU have increased - possibly by a factor of 2.... so, in my case, it might be that I don't have enough "grunt" to do 2 at once and in the same timespan as a single WU....but a better card, might be "betterer"
2nd edit: I've just found a post on the PG forum which confirms what I thought - on my old card, running 2 concurrent PG WU's results in the time taken to increase by (say) twice. Of course, another "higher spec" card might be different.
http://www.primegrid.com/forum_thread.p ... true#90388
regards
Tim
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Re: Primegrid Winter Solstice Challenge
Hi all,
So, running 2x WU per GPU leads to run-times of approx 2000 seconds per WU, while running one, is 800 seconds per WU.
(In any 4000 second period, I can crunch 4x WU *with* the config settings or 5 WU's without).
Looks like I'll be switching off app_config.xml settings for this project !!
Going to have to wait for the cache to reduce before I can re-start with 1x WU per GPU.
regards
Tim
So, running 2x WU per GPU leads to run-times of approx 2000 seconds per WU, while running one, is 800 seconds per WU.
(In any 4000 second period, I can crunch 4x WU *with* the config settings or 5 WU's without).
Looks like I'll be switching off app_config.xml settings for this project !!
Going to have to wait for the cache to reduce before I can re-start with 1x WU per GPU.
regards
Tim
Re: Primegrid Winter Solstice Challenge
Hi Tim,UBT - Timbo wrote:Hi all,
So, running 2x WU per GPU leads to run-times of approx 2000 seconds per WU, while running one, is 800 seconds per WU.
(In any 4000 second period, I can crunch 4x WU *with* the config settings or 5 WU's without).
Looks like I'll be switching off app_config.xml settings for this project !!
Going to have to wait for the cache to reduce before I can re-start with 1x WU per GPU.
regards
Tim
Welcome to the challenge
I tried that and multiple WUs at a time were actually very slightly better. Two WUs took 190% of the single WU time (and four WUs took 375% of the single WU time)
Since I didn't want to finish the crunch with four WUs at 75% completion and not counting instead of three counting I've gone for just one at a time, the extra couple of percent gain didn't seem worth the hassle.
Mark
Re: Primegrid Winter Solstice Challenge
26th place at the moment although Nemesis Germany are close
Re: Primegrid Winter Solstice Challenge
Ooops - forgot to clear out my non-gpu tasks!!
On it now!
On it now!
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Re: Primegrid Winter Solstice Challenge
Hi Keithhgblade wrote: Ooops - forgot to clear out my non-gpu tasks!!
On it now!
Why do you need to clear out the non-GPU tasks? I thought the WInter Solstice Challenge was for GPU's only...
http://www.primegrid.com/prefs.php?subset=project
regards
Tim
Re: Primegrid Winter Solstice Challenge
Hi both,
The challenge is purely for PPS WUs, they're available for GPU or CPU crunching. Obviously GPUs are much quicker but CPUs can still contribute. Not sure why the CPU tasks need to be cleared out unless there's a limit to combined WUs you can download?
Mark
The challenge is purely for PPS WUs, they're available for GPU or CPU crunching. Obviously GPUs are much quicker but CPUs can still contribute. Not sure why the CPU tasks need to be cleared out unless there's a limit to combined WUs you can download?
Mark
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Re: Primegrid Winter Solstice Challenge
Hi Mark,Woodles wrote:Hi both,
The challenge is purely for PPS WUs, they're available for GPU or CPU crunching. Obviously GPUs are much quicker but CPUs can still contribute. Not sure why the CPU tasks need to be cleared out unless there's a limit to combined WUs you can download?
Mark
I thought it was only for "Proth Prime Search Sieve" (as per their website linked above).
I've just found the PG Preferences, and indeed there is a tick box for CPU work too. (I didn't see that before ) doh !!!
regards
Tim
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Re: Primegrid Winter Solstice Challenge
Hi Keith,hgblade wrote: Ooops - forgot to clear out my non-gpu tasks!!
On it now!
I let my CPU cache drop to zero overnight, but sadly I didn't get any PG CPU WU's.
Given that the Challenge will be ending soon, I'm not going to hang around and wait for PG WU's to become available, so I'm back onto Gerasim for CPU tasks.
regards
Tim
Re: Primegrid Winter Solstice Challenge
Hi TimUBT - Timbo wrote:Hi Keith,hgblade wrote: Ooops - forgot to clear out my non-gpu tasks!!
On it now!
I let my CPU cache drop to zero overnight, but sadly I didn't get any PG CPU WU's.
Given that the Challenge will be ending soon, I'm not going to hang around and wait for PG WU's to become available, so I'm back onto Gerasim for CPU tasks.
regards
Tim
I managed to get some yesterday, but they're not going to complete before the challenge ends - still over 24 hours to run. At least my gpu tasks came through!
Regards
Keith
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Re: Primegrid Winter Solstice Challenge
Hi Keithhgblade wrote:Hi Tim
I managed to get some yesterday, but they're not going to complete before the challenge ends - still over 24 hours to run. At least my gpu tasks came through!
Regards
Keith
OK - that's good info...although I wasn't expecting CPU tasks to take that long, so, in a way, just as well I didn't get any downloaded.
However on 2 PC's it meant that the CPU's weren't active overnight, though it matters not, as any credits earned would have been minimal.
regards
Tim
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Re: Primegrid Winter Solstice Challenge
We're now in 25th place and in real terms our best prospect is 23rd....with BOINC.Italy and AMD Users slightly ahead of us. But there's no guarantee that'll happen.Woodles wrote:26th place at the moment although Nemesis Germany are close
I can live with being in the Top 25
regards
Tim
Re: Primegrid Winter Solstice Challenge
Top 25 will do me as wellUBT - Timbo wrote:We're now in 25th place and in real terms our best prospect is 23rd....with BOINC.Italy and AMD Users slightly ahead of us. But there's no guarantee that'll happen.
I can live with being in the Top 25
regards
Tim
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Re: Primegrid Winter Solstice Challenge
So long as we beat TSBT I'm happy!
Doesn't happen very often now.
Mike
Doesn't happen very often now.
Mike
Last edited by UBT - Mikee on Tue Dec 22, 2015 7:31 am, edited 1 time in total.
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Re: Primegrid Winter Solstice Challenge
Hi Mike,UBT - Mikee wrote:So long as we beat TSBT I'm happy!
Doesn't happen very often now.
Mike
I think for THIS Challenge, we've thumped 'em...
But they thumped us on the Formula BOINC positions for the last couple of years...
We'll have to see what we can do during 2016, to keep you "happy" Mike
regards
Tim