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drummers-lowrise
1) Message boards : Number crunching : Winter Solstice Challenge (Message 123433)
Posted 3 days ago by recoil44Project donor
Does anyone know what the ACTUAL power draw of a 1080 Ti (FE) running at stock clocks is?

Under max load it's about 250W

Source: https://www.tomshardware.com/reviews/nvidia-geforce-gtx-1080-ti,4972-6.html

Edited to add source
2) Message boards : General discussion : Liquid cooled memory, now a reality. (Message 123395)
Posted 4 days ago by recoil44Project donor
Maybe first as a "self contained" unit but water cooled RAM has been available since at least 2010.

Linus Tech Tips did a video of the ones you're talking about in July
https://www.youtube.com/watch?v=UKqVC_guqHY
Spoiler alert: there is "liquid" but no "cooling".
3) Message boards : Generalized Fermat Prime Search : GFN21 GFN22 Scoreboard, post your times/hardware (Message 123156)
Posted 10 days ago by recoil44Project donor
GPU memory at 1775Mhz both according to GPUZ. MSI afterburner reports the same GPU Mhz but the memory is reported at 7099Mhz.

GPU-Z displays the real clock speed. EVGA Precision, MSI Afterburner, GPU Shark display the effective DDR speed.

1775 is the real speed, 7099 is the effective speed. Note 1775 x 4 = 7100
So it's QDR (Quad Data Rate) memory rather than DDR (Double Data Rate).
This gets confusing since GDDR6 = Graphics Double Data Rate type six synchronous dynamic random-access memory.

Maybe someone else can explain that, I might look into it later myself.
4) Message boards : General discussion : Prime Score (Message 122890)
Posted 20 days ago by recoil44Project donor
For those who are interested, the formula is:

score = X^3 * ln(X) / Q

X is the size of the number expressed in base e -- i.e., it's similar to the standard length calculation LOG10(k) + LOG10(b)*n, except using the natural logarithm instead of the base 10 logarithm. So X = ln(k) + ln(b)*n.

Q is a scaling factor equal to 150732545640984000.

Furthermore, if you're the double checker, the score is reduced by 50%.


Michael posted this a while back
5) Message boards : Number crunching : PrimeGrid is Moving!!! (Message 122826)
Posted 22 days ago by recoil44Project donor
https://www.primegrid.com/forum_thread.php?id=7592&nowrap=true#122692
6) Message boards : Number crunching : 2019 Challenge Voting (Message 122597)
Posted 28 days ago by recoil44Project donor
Cullen
GCW
PSP
PPS & GFN 17-Low (Combo Challenge)
SOB
SGS
TRP

If we're unwilling to do a combined score challenge (I'm sure we're able) then I'd drop SGS from the list.
7) Message boards : General discussion : Boink vs Bo Inc (Message 122515)
Posted 30 days ago by recoil44Project donor
You could end all debate and simply call it Berkeley Open Infrastructure for Network Computing.

Ber-Key-Lee ?
Berk-Elee ?
Berkeh-Lee ?
8) Message boards : Number crunching : Primegrid and BOINC thoughts on the i9-9900k vs i7-9700k (Message 122360)
Posted 35 days ago by recoil44Project donor
On the other hand, having 8 cores (and 16 threads) running at 5 GHz with only 95W TDP is mighty impressive.

Stock turbo boost is limited in both cores and time (varies by motherboard). To have all cores running at 5 GHz for extended periods of time you'll be using a bit more than 95W.
Gamers Nexus has a good video on it https://www.youtube.com/watch?v=IBrumDWpl-c

I'm also looking to build a new system and it just seems like it's overly complicated this time around.
9) Message boards : Number crunching : New PrimeGrid Policy - Monetization of BOINC credit (Message 122359)
Posted 35 days ago by recoil44Project donor
It might have caused a DDOS, but its not an attack, I hope you can tell the difference.


The word "attack" in this case refers to the action, during which the DDOS is occurring.

What you mean to say, and what has already been said repeatedly in this thread, is that there was no malicious intent by the perpetrators.

post edited for brevity
10) Message boards : Number crunching : An Evaluation of the RTX 2070 for PrimeGrid Applications (Message 122332)
Posted 36 days ago by recoil44Project donor
Thanks. Wow, it seems increasing B values makes much more of a difference than I've seen on my Pascal cards. B13 is more than twice as fast as my 1080 Ti (270 P/day; though I've observed that manual sieving on Ubuntu is a bit slower than on Windows).

My 1070 Ti manages 180 P/day (B13 as well) on the same system as the 1080 Ti.

How many instances are you running at a time? I settled on 2 with B11 (B9 if I'm browsing the web) on a 1080. I think there was minimal increase (maybe a decrease?) at B12 and stopped testing there.


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