[QUOTE=Mark Rose;388426]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.[/QUOTE]

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.

[QUOTE=Gordon;390040]many to 72, quite a few to 73 bits
[/QUOTE]
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[URL="http://www.gpu72.com/reports/workers/dctf/"] this table[/URL], 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 :razz:).

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

[url]http://www.gpu72.com/reports/workers/dctf/day/[/url]
[url]http://www.gpu72.com/reports/workers/day/[/url]

[QUOTE=LaurV;390080]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[URL="http://www.gpu72.com/reports/workers/dctf/"] this table[/URL], 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 :razz:).[/QUOTE]

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

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?

[QUOTE=pinhodecarlos;390150]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?[/QUOTE]

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.

How many of these would help?

[URL]http://www.scan.co.uk/3xs/configurator/litecoin-mining-pc-10[/URL]

[QUOTE=pinhodecarlos;390163]How many of these would help?

[URL]http://www.scan.co.uk/3xs/configurator/litecoin-mining-pc-10[/URL][/QUOTE]

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

[QUOTE=Mini-Geek;390172]According to the figures from [URL]http://www.mersenne.ca/mfaktc.php[/URL], that rig could do 2,246.4 GHz-days/day.[/QUOTE]

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.

[QUOTE=kracker;390175]No harddrive though[/QUOTE]
It boots Linux off of USB, no hard drive needed.
[QUOTE=kracker;390175]I'm not sure how 6 GPU's would work with mfakto[/QUOTE]
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=kracker;390175]the power consumption would probably be another consideration as well.[/QUOTE]
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.

[QUOTE=Mini-Geek;390177]It boots Linux off of USB, no hard drive needed.
[/QUOTE]

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)?