GPU to 72 status... - Page 306

petrw1 · 2014-12-15, 03:15

Quote:

Originally Posted by Mark Rose

The defaults will be okay, but there's usually room for improvement.

The three that matter are:

GPUSieveProcessSize
GPUSieveSize
GPUSievePrimes

I would adjust them in that order. As soon as you see a GHz-d/day number you've run it long enough. CRTL-C and adjust. There are only a few values for the first two, and I'd adjust GPUSievePrimes by jumps of 5000 or so.

Thanks ...took a while to get around to it....but got me about another 3%
GPUSieveProcessSize: 16 to 24 to 32 (Max) got me about 1%
GPUSieveSize: 64 to 96 to 128 (Max) got me about 2% more
GPUSievePrimes: 82487 - 90677 got me about 0.2% ... any more made it slower.

Current thruput about 515 at about 18 degrees C.
Varies with temp; seems to self adjust; GPU temp is kept below 75 degrees C automatically.

LaurV · 2014-12-15, 04:32

Quote:

Originally Posted by Gordon

many to 72, quite a few to 73 bits

Those are first time LLTF, with no P-1 done, for which a rate of 1 in 65 is normal. Same for the guys who replied before.
When I look to this table, I see different things. (adding the 68-73 y rows, comparing to the number of factors found).
Anyhow, Chris already modified the table, for me the subject is closed (at least for a while

).

NickOfTime · 2014-12-15, 16:45

hmm , is there a way to get daily stats Exact instead of adjusted?

http://www.gpu72.com/reports/workers/dctf/day/
http://www.gpu72.com/reports/workers/day/

Gordon · 2014-12-15, 19:08

Quote:

Originally Posted by LaurV

Those are first time LLTF, with no P-1 done, for which a rate of 1 in 65 is normal. Same for the guys who replied before.
When I look to this table, I see different things. (adding the 68-73 y rows, comparing to the number of factors found).
Anyhow, Chris already modified the table, for me the subject is closed (at least for a while

).

No, I did a LOT of DC work to 73 bits...

pinhodecarlos · 2014-12-15, 19:54

I am not into this subject so please excuse my question. How many GeForce GTX TITAN Z is needed for Trial Factoring be ahead of Prime95 LL wave?

kracker · 2014-12-15, 20:42

Quote:

Originally Posted by pinhodecarlos

I am not into this subject so please excuse my question. How many GeForce GTX TITAN Z is needed for Trial Factoring be ahead of Prime95 LL wave?

Titan Z's are very inefficient on GHz/days per price, there are better options like the GTX 970 or R9 295... For the actual question, I'm not sure... someone like chalsall will know.

pinhodecarlos · 2014-12-15, 22:09

How many of these would help?

http://www.scan.co.uk/3xs/configurat...n-mining-pc-10

Mini-Geek · 2014-12-15, 23:42

Quote:

Originally Posted by pinhodecarlos

How many of these would help?

http://www.scan.co.uk/3xs/configurat...n-mining-pc-10

According to the figures from http://www.mersenne.ca/mfaktc.php, that rig could do 2,246.4 GHz-days/day.

kracker · 2014-12-15, 23:58

Quote:

Originally Posted by Mini-Geek

According to the figures from http://www.mersenne.ca/mfaktc.php, that rig could do 2,246.4 GHz-days/day.

No harddrive though, and I'm not sure how 6 GPU's would work with mfakto... and the power consumption would probably be another consideration as well.

Mini-Geek · 2014-12-16, 00:29

Quote:

Originally Posted by kracker

No harddrive though

It boots Linux off of USB, no hard drive needed.

Quote:

Originally Posted by kracker

I'm not sure how 6 GPU's would work with mfakto

It has options to choose the device when you run. I'd expect that you'd run 6 instances of mfakto, one for each GPU. Since the GPU can sieve its own candidates, there's no significant CPU load, so you could even do a little extra crunching on that.

Quote:

Originally Posted by kracker

the power consumption would probably be another consideration as well.

It comes with enough to power the GPUs under a full mining load: two 1000W PSUs. I would be surprised if mfakto had significantly different power requirements. Granted, it will put out a lot of heat and could draw enough power to trip some circuit breakers (if put on one circuit) and cost you a small fortune in electricity, but the rig itself is a solid unit suitable for crunching - just what it says on the tin.

TheMawn · 2014-12-16, 01:37

Quote:

Originally Posted by Mini-Geek

It boots Linux off of USB, no hard drive needed.

For a guy who has used only Windoze in his time, is Linux hard to figure out? I'm working on a box and I'm not sure if I want to go Windows 7 straight away or wait a bit until it mutates into the computer I want to actually use all the time. I suppose I would be running mprime and MISFIT (for GPU TF'ing)?

2014-12-15, 19:54	#3360
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 4947₁₀ Posts	GeForce GTX TITAN Z I am not into this subject so please excuse my question. How many GeForce GTX TITAN Z is needed for Trial Factoring be ahead of Prime95 LL wave?

2014-12-15, 22:09	#3362
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 3×17×97 Posts	How many of these would help? http://www.scan.co.uk/3xs/configurat...n-mining-pc-10 Last fiddled with by pinhodecarlos on 2014-12-15 at 22:14

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2014-12-15, 16:45	#3358
NickOfTime Apr 2014 2×3×7 Posts	hmm , is there a way to get daily stats Exact instead of adjusted? http://www.gpu72.com/reports/workers/dctf/day/ http://www.gpu72.com/reports/workers/day/