PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise
1) Message boards : Number crunching : Tesla anyone? (Message 150116)
Posted 4 days ago by Scott BrownProject donor
I guess no one uses a Tesla. I am trying a Tesla V100 and it takes for PPSSieve 110 seconds, about the same as a 2080 ti. But not near as fast as the 3080 and 3090..


That looks about right. A V100 has about 14k GFLOPS, which is just a tad more than a 2080 Ti. The 3070, 3080, and 3090 all have more GFLOPS than that (the 3080 and 3090 have a lot more), and so will run faster than a V100 on something like PPS sieve. This may not be the case for other applications. For example, the higher GFN (21, 22, DYFL) will take advantage of the substantial double-precision capability of the V100, which may render it faster than the 3xxx series cards.

2) Message boards : Aggie The Pew message board (Message 149982)
Posted 9 days ago by Scott BrownProject donor
1 billion.


Very Nice!

3) Message boards : Aggie The Pew message board (Message 149952)
Posted 11 days ago by Scott BrownProject donor
Touch and go for me since I will be very close to having enough credit for another Bronze Shield but now for GFN. If nothing else, I may have at least one GPU available for a nominal contribution to the overall team effort.

My temps are also rising which adds some urgency to knock off GFN and finally start on the much less demanding AP and the marathon to 100M (another Bronze Shield).

AP vs GFN are just the opposite for me. GFN runs so much cooler than AP or WW for that matter. Unless you are talking credit and not power/heat.


Don't forget that GFN are not all the same. On lower values (GFN19 and below) it is OCL2, which will run less intensively than higher values like GFN 21 (OCL or OCL4).

4) Message boards : Aggie The Pew message board (Message 149927)
Posted 12 days ago by Scott BrownProject donor
Bringing what I can. Maybe will get a chance to add some more special things that I haven't had access to before to this one. ;)

5) Message boards : Aggie The Pew message board (Message 149780)
Posted 20 days ago by Scott BrownProject donor
"Don't believe all you see on the internet." Abraham Lincoln, April 23, 1865.


Best part about that one is the date! ;)

6) Message boards : Number crunching : Sier"pi"nski's Birthday Challenge (Message 149664)
Posted 26 days ago by Scott BrownProject donor
Doing a little post challenge analysis of my results and found a comparison that was an interesting demonstration of the value of older hardware with big cache relative to newer hardware.

The two contenders:

1) i7-9700, 8-core (no HT), 3.0GHz, 12MB L3 cache, DDR4 2666 dual channel memory, AVX2/FMA3 (Coffee Lake). about $270 US on NewEgg

2) Xeon E5-2687W, 8-core (HT on, but running 50% CPU), 3.1GHz, 20MB L3 cache, DDR3 1600 quad channel memory, AVX (Sandy Bridge). about $100 US on Ebay

SoB FFT = 3M
i7-9700 run is about 135k seconds (or 37.5 hours)
E5-2687W run is about 125k seconds (or about 35 hours)

SoB FFT = 3456k
i7-9700 run is about 164k seconds (or 45.5 hours)
E5-2687W run is about 156k seconds (or about 43.5 hours)


With nearly equal clocks on these two CPUs, it seems clear that for large work like SoB, bigger cache and more memory channels trumps the newer instruction set and faster memory.
7) Message boards : Aggie The Pew message board (Message 149633)
Posted 28 days ago by Scott BrownProject donor
Our latest owner(s) of a Toot alert:


Lord Of The Rats passes 40,000,000

Keep it going sir!


A drop in the ocean compared with your magnificent score.



To quote a German (I think?) proverb:

"Little drops of water, little grains of sand, make the mighty ocean and the pleasant land."

8) Message boards : Aggie The Pew message board (Message 149632)
Posted 28 days ago by Scott BrownProject donor
Will get few more in, but pretty sure it won't be enough to gain any in the rankings. Going to stay on SoB mostly for a while to get that next badge as well...should be able to get there before the end of May I think.

9) Message boards : Aggie The Pew message board (Message 149601)
Posted 29 days ago by Scott BrownProject donor
And I passed the 6 billion mark. Been working on that for a long time !


Well done!

10) Message boards : Aggie The Pew message board (Message 149600)
Posted 29 days ago by Scott BrownProject donor
Something doesn't smell nice ...



Awesome!



Next 10 posts
[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2021 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 2.68, 3.31, 3.10
Generated 21 Apr 2021 | 1:03:52 UTC