[QUOTE=petrw1;408963]Progress last 2 days (4:00 PM UTC): ... ROUNDED
DISCLAIMER: I know it depends on how often/when each of you check in results:

Mark Rose: +2,700
Air Squirrels: +28,700
ANONYMOUS: +22,300

To compare this shows just over 304,000 total DCTF in the last 30 days:
[url]http://www.gpu72.com/reports/workers/dctf/month/[/url]
47% of it is the Big-2 (Sorry Mark)

If the big-2 above continue at this rate they alone would complete 765,000 in 30 days.[/QUOTE]

LaurV and I used to be the big two, but we've been usurped! It's all good though. I want to see the DCTF finished. The question is whether LaurV will pass me again before we both get passed by these hot shot new comers ;)

[QUOTE=Mark Rose;408972]LaurV and I used to be the big two, but we've been usurped! It's all good though. I want to see the DCTF finished. The question is whether LaurV will pass me again before we both get passed by these hot shot new comers ;)[/QUOTE]
Hehe, I can't catch you. Since I am back from holiday am a bit below your speed rate, i.e. you are about 100Gd/d faster then me, due to the fact that one of my rigs are down, and I will not start it until I get another Titan for it (which was just shipped out from US, but it may take a while). After that it will do LL for a while, to finish some remnant assignments. I used to be "the big 2", "the big 3", "4", "5" etc. (getting older, hehe), with jerry, pete, nucleon, mike, etc, etc. but they all switched priorities in time, and gave up part of their power. For me also, I never had a rig totally dedicated to TF, they all did some other work, some design, some bitcoin, etc. Then other guys big-iron joined the fray (i.e Oliver, chuck), and we lost the cherry for good...

OTOH, now I am very upset, because I had a [URL="http://www.gpu72.com/reports/worker/2423ae6e8f696d5e7d1447de91ca35a6/"]nice cityscape[/URL] there, :wink: looking like NY before nine-eleven, hehe, but only a corner of it remained, it went to the left left and it was lost during my holiday :sad:

I am working to make it again... I have to see how and where I add some green... and maybe a touch of red :razz:

I've not been here and I'm curious about just how much more power you guys have . So when you say he has you beat by 100Gd/d what are the numbers behind that?

[QUOTE=dragonbud20;409057]I've not been here and I'm curious about just how much more power you guys have . So when you say he has you beat by 100Gd/d what are the numbers behind that?[/QUOTE]

If you look at the link LaurV provided for him or anyone else you choose, the graph shows him and Mark in the 1300-1400 Ghz Days / Day of GPU. This requires 2 or 3 upper-end full-time GPUs (or a few more mid-range GPUs).

On the other hand Air Squirrels and ANONYMOUS are in the 9,000-10,000 range.

[QUOTE=dragonbud20;409057]I've not been here and I'm curious about just how much more power you guys have . So when you say he has you beat by 100Gd/d what are the numbers behind that?[/QUOTE]

Well, as a rough ballpark, a top end AMD graphics card will do about 1000 GHz-days/day. A midrange card will tend to perform in the 200-300 range. I run 3 GTX 580's basically 24/7, and each produces about 431 GHz-d/d. I also have an old GT 520, giving 30 GHz-d/d, because why not. I also sometimes use my GTX 760 at home, which gives about 260 GHz-d/d.

AirSquirrels has a large number of top end AMD graphics cards. We don't know what ANONYMOUS has.

The GHz-d/d figure relates to the work a P4 at a certain speed can do in one day, doing a Lucas-Lehmer primality test. GPU's (at least NVidia at the moment) can also run the LL test, but they are vastly more efficient at "simple" division by trying to divide Mersenne numbers by very large factors (trial factoring in the millions of digits). The number you see for TF GHz-d/d is a rough measurement of the effective rate the GPU has at eliminating candidate Mersenne numbers doing trial factoring versus a CPU doing the LL test.

Every additional bit in a trial factor takes double the execute the division though, so trial factoring eventually becomes slower than doing the LL operation on the GPU. This cutoff grows the larger the Mersenne number gets, and is in the range of 72 to 75 bits for the exponents the GPUs are currently factoring.

[QUOTE=Mark Rose;409066]The GHz-d/d figure relates to the work a P4 at a certain speed can do in one day, doing a Lucas-Lehmer primality test.[/QUOTE]
Please see: [URL="http://www.mersennewiki.org/index.php?title=Computing_power"]mersennewiki.org entry "Computing power"[/URL]

[QUOTE=Uncwilly;409078]Please see: [URL="http://www.mersennewiki.org/index.php?title=Computing_power"]mersennewiki.org entry "Computing power"[/URL][/QUOTE]

Ahh, thanks :)

[QUOTE=Mark Rose;409066]Well, as a rough ballpark, a top end AMD graphics card will do about 1000 GHz-days/day. A midrange card will tend to perform in the 200-300 range. I run 3 GTX 580's basically 24/7, and each produces about 431 GHz-d/d. I also have an old GT 520, giving 30 GHz-d/d, because why not. I also sometimes use my GTX 760 at home, which gives about 260 GHz-d/d..[/QUOTE]

huh I guess my 2 980TIs and a 970 aren't too shabby then; perspective is a funny thing. Although since it's summer in SoCal right now I can only run nights.

[QUOTE=dragonbud20;409097]huh I guess my 2 980TIs and a 970 aren't too shabby then; perspective is a funny thing. Although since it's summer in SoCal right now I can only run nights.[/QUOTE]
Ha! You stay at about 1600GHzDays/day with[URL="http://www.mersenne.ca/mfaktc.php?show=631&sort=ghdpd"] those 3 cards[/URL]. More than I am currently doing, by about a half! Move your butt and get an account on gpu72! :razz:


Edit: actually... I see you have an account there already, but you only produce ~280 GHzD/D, why so? Or is that not you? Put your cards to do something useful, and forget those games.. They only waste your time :razz:

More LLTF'ing please...
 

Just to put on the table...

We recently received, unexpectedly, a great deal of DCTF'ing firepower. This is great, of course.

But... We're still right at the edge of properly feeding the LL'ers and P-1'ers. Slowly falling behind, in fact.

So, those who currently aren't sure if they should DCTF or LLTF, please choose LLTF'ing.

We now return you to your regular programming.... :smile:

[QUOTE=dragonbud20;409097]huh I guess my 2 980TIs and a 970 aren't too shabby then; perspective is a funny thing. Although since it's summer in SoCal right now I can only run nights.[/QUOTE]

Those cards not only do a lot more work than my two 580s, but at a lazy guess, they use less power between them.