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-   -   GPU to 72 status... (https://www.mersenneforum.org/showthread.php?t=16263)

chalsall 2013-01-29 18:12

[QUOTE=bcp19;326501]I'll just grab from the default then, it'll be a few days before I grab more though.[/QUOTE]

(We cross-posted.) Cool. Thanks.

I'm going to keep my 560 in this range for the time being (when it's not SIFTing images), so between you, Chuck and myself we should be good.

bcp19 2013-01-31 18:15

While I have not yet done any in the 31M range atm, I think these numbers should help the ^70 bit cause:

29M - 3,406 exp tested, 38 factors found (1.115%)
30M - 3,839 exp tested, 43 factors found (1.12%)
32M - 10,261 exp tested, 122 factors found (1.189%)

ckdo 2013-01-31 18:29

More complete data [URL="http://en.gpu72.com/reports/factor_percentage/"]here[/URL].

flashjh 2013-01-31 18:49

SIFTing images?

James Heinrich 2013-01-31 18:53

[QUOTE=flashjh;326891]SIFTing images?[/QUOTE]
[quote=http://en.wikipedia.org/wiki/SIFT][url=http://en.wikipedia.org/wiki/Scale-invariant_feature_transform]Scale-invariant feature transform[/url], an algorithm in computer vision to detect and describe local features in images[/quote]I don't believe Chris has elaborated as to exactly the nature of his project. I think he's planning on sending an autonomous rover to Mars. :smile:

kracker 2013-02-01 21:51

[URL="https://www.gpu72.com/reports/workers/saved/"]What would we do without you Chris? :smile:[/URL]

(Work Saved)

chalsall 2013-02-01 22:21

[QUOTE=kracker;327092](Work Saved)[/QUOTE]

Whoops... Thanks for pointing that out.

I need to filter out my brief LMH test run....

bcp19 2013-02-01 22:27

[QUOTE=chalsall;327095]Whoops... Thanks for pointing that out.

I need to filter out my brief LMH test run....[/QUOTE]
Bad chalsall! We know how you programmers work!

Chuck 2013-02-02 01:15

[QUOTE=kracker;327092][URL="https://www.gpu72.com/reports/workers/saved/"]What would we do without you Chris? :smile:[/URL]

(Work Saved)[/QUOTE]

I noticed that some time ago ... I thought maybe it was a perk given to the creator of this system.

chalsall 2013-02-02 01:47

[QUOTE=Chuck;327115]I noticed that some time ago ... I thought maybe it was a perk given to the creator of this system.[/QUOTE]

Nope.

I don't grant myself any perks not offered to anyone else, except occasionally running experiments intended for public use. Sometimes such experiments cause unexpected results, which is the purpose of the experiments in the first place.

LaurV 2013-02-02 07:28

As a connected discussion:
We talked about this in the past (here on the forum): LMH-TF saved work should not be mixed into those tables. because:
1. at the bitlevels we work in 332-334M area, it is still very easy to find factors (10 or more factors per day for a GTX580)
2. each factor found saves "a lot" of time, due to HUGE amount of work needed to be done to LL and DC such exponents.

I saved few millions of GHzDays only in the last 5 days, with only two cards.

Therefore we discussed in the past that if TF-LMH assignment will be offered by GPU72 as an option, then the "saved work" of such assignments should be accounted separate, or better ignored, because even counting it separate won't be accurate, there is big difference between exponents and bitlevels. The same like one should count how many GHzDays he saved by finding up-to-40 bits factors for exponents under 100M. You can find all of them in two-three days even with a pari script, and eliminate half of the exponents, how many billions of GHzDays would that be? :whistle:


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