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drummers-lowrise
1) Message boards : Extended Sierpinski Problem : 340 000 s CPU time on i7-4790K (Message 140126)
Posted 147 days ago by Werinbert
On my i7 3770k (4 core/8 thread) I have set multi-threading to 4 and left hyper-threading on. So I am running two tasks simultaneously. Not the most efficient but it works for me. But each person should run a few tests to see what settings works best for them as hardware variations can make a significant difference (AVX capability or cache size for examples).

On my Ryzen 3700X (8 core/16 thread) I set multi-threading to 4 or 8 depending on how long the tasks are expected to run. Again I leave hyper-threading on. Using 4 cores makes the computer more responsive to other projects I have going on as I am often running PG as the backup project and I prefer it not to hog my CPU resources if possible.

For GFN21/22, however, I have app_config set to use all my cores as they are monster tasks. [GPU is highly recommended, but I am a masochist.]
2) Message boards : Problems and Help : PPS sieve errors (Message 140046)
Posted 151 days ago by Werinbert
Try resetting the project.
3) Message boards : Number crunching : 2020 Challenge Schedule! (tentative) (Message 139940)
Posted 156 days ago by Werinbert
Suggested new name to be: Corona Chaos Challenge
4) Message boards : Number crunching : Help with reassigning CPU for GPU task pls (Message 139507)
Posted 176 days ago by Werinbert
This is a known problem with Linux drivers. They always use full CPU core. GFN application itself has almost zero CPU usage.

Workaround: https://www.primegrid.com/forum_thread.php?id=7731&nowrap=true#113965 and below.


Thanks for the info. I have a new Linux machine and I noticed this and couldn't figure out why things were slower than I thought they should be for a fast CPU rig. Thankfully, right now I am running more for WU_Prop hours than points but I need to get it squared away when I do start running the rig for points.
5) Message boards : Number crunching : how many gpus do you have and the model (Message 139404)
Posted 180 days ago by Werinbert
Used for PG:
GTX 1660 TI
GTX 750 TI

Used for other projects:
HD 4400
HD 5500
6) Message boards : Number crunching : odd task... (Message 139127)
Posted 189 days ago by Werinbert
never mind...I am off by a month on a very over due task.
7) Message boards : Sierpinski/Riesel Base 5 Problem : SR5 primes may take up to 10 times longer to process than composites (Message 139066)
Posted 195 days ago by Werinbert
I believe most of us are here to find primes, not just probable primes. Also I feel that we are donating our computers to do the processing whereas doing only half the work and then sloughing it off onto the PG servers defeats that purpose.
8) Message boards : Number crunching : Badges III (Message 139002)
Posted 198 days ago by Werinbert
9) Message boards : Number crunching : Year of the Rat Challenge (Message 138863)
Posted 203 days ago by Werinbert
You dirty rats!!!

I am trying to run AP27 tasks and I get sent an SR5 task. In response we called the pest control people to deal with the vermin, unfortunate they claim they are unable to come out until after next week. Coincidence? I think not.

(We actually did call the exterminator as we have rats and squirrels eating from our fruit trees.)
10) Message boards : Number crunching : Badges - Full Sets! (Message 138720)
Posted 207 days ago by Werinbert
&

These complete a full set of gold badges.
Now to get rid of the jaundice and find me some rosy cheeks... :-)


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