[ANN] cudaMiner & ccMiner CUDA based mining applications [Windows/Linux/MacOSX]

[humanitybg]

Guys can some upload a newer compiled version (I read that you guys are using new ones) since I have 0 idea how to compile on Windows. I want to test out how my GTX770 will do compared to the 12-18 release.

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[bathrobehero]

Since commit ~125, benchmark mode has gone rogue. The previous commit I complied and was fine was 114.



It's just a minor issue, but I thought it's worth mentioning.
I use solomining as benchmark now (no shares skewing with the numbers)

[Morgahl]

Hi I was wondering if you guys are doing only simple overclocking with afterburner or forced p-states.
On my EVGA 660Ti I use nvidia inspector to force p2-state which gets me up to 1215MHz (300MHz over stock).
Also my hashrate got a bit more stable with this and autotuning gets much more precise results since then.

This gets me 340khash/s for scrypt and 3.5khash/s for scrypt-jane.
This is with the 2014-1-22 version.
So I´m wondering why I´m actually still below a value from the scrypt-jane spreadsheet which apparently uses almost no OC.
I´ve tested lots of kernel cfgs but I can´t seem to get any higher.

Any ideas?

My exact config:
scrypt: --interactive=0 --hash-parallel=2 --launch-config=Y112x2 --texture-cache=1 --single-memory=0
scrypt-jane: --interactive=0 --hash-parallel=1 --launch-config=K7x23 --texture-cache=0 --single-memory=0 --lookup-gap=3

OC:
P0: clock-offset +160; mem-offset +300; power-target 153% (actually uses about 142% TDP)
P2: clock 1215MHz; forced
Driver: 332.21

Your, Mem offset might be going the wrong direction. There is zero bottleneck for Scrypt-Jane (@ -L 1) and almost none for Scrypt or Scrypt-Jane (@ -L 2+) in terms of memory throughput most times.

This may just be a Titan specific observation, but I literally see zero change to hash rate swinging from -502 to +300 in 100 steps, none. All a positive memclock did was raise the TDP utilization of the card for zero gain. You might find that lowering the Memclock will allow a more stable feed to the GPU and allow a higher clock as a result. If not at least you will see a reduction in TDP % saving you power costs in the long run.

[cbuchner1]

cbuchner1, did you note my earlier post about autotune problems and K kernel performance regression?

So that regression really is bad. 254 kHash/s to 204 kHash/s with same kernel launch parameters between 2013-12-18 and current github.
That's a 20% drop in performance. I might play around a bit to see what I can find.

It's fixed! A radical simplification I made some time ago just turned out to having been a radical speed brake

The K, T, X kernels are 10-15% faster now. Definitely for scrypt - but also slightly faster for scrypt-jane.

Too bad that for scrypt you would usually take the new Y, Z kernels (or the good old F kernel for Fermi).
So the overall benefit isn't that great.

Christian

[bigjme]

I will download and give it a test :-)

Edit: ok so it took 7 attempts and 3 downloads to get the latest build to compile. Bare in mind I have compiled every other release in 1 attempt. It was giving different errors constantly and even sometimes doing nothing

Finally got it to compile and found a drop in performance.
4.77khash/s for the latest
5.04khash/s on the one I built around 12 hours ago

Thats on yacoin with the same configuration as I posted earlier. It was not left to autotune I just ran the settings I did earlier

[cbuchner1]

I will download and give it a test :-)

Edit: ok so it took 7 attempts and 3 downloads to get the latest build to compile. Bare in mind I have compiled every other release in 1 attempt. It was giving different errors constantly and even sometimes doing nothing

Finally got it to compile and found a drop in performance.
4.77khash/s for the latest
5.04khash/s on the one I built around 12 hours ago

Thats on yacoin with the same configuration as I posted earlier. It was not left to autotune I just ran the settings I did earlier

For scrypt-jane I am seeing mixed results. GT 640 (Compute 3.5) seems a little slower, GTX 780 TIs on Linux slightly faster.
Maybe I can later offer an option to switch between these two (totally different) memory access schemes to the scratchpad.

I am also wondering if you guys still see non-validating shares in conjunction with the lookup gap after this change?
 I can't see much activity when solo-mining, but the pool miners will notice.

Christian

[bigjme]

Solo mining myself, sorry
Again I will gladly test anything new you release. For anyone wondering my gpu is a evga gtx 780 hydro copper

Seems between the 660, 780, and 780ti there are very mixed results. Wish yacoin hadnt dropped in price so much. 1800 coins is only worth £27 now. Return on them seems very low

[djm34]

I noticed something strange today (herr... yesterday...). I was running on MRC in x64 windows version, at some point I look at the graphs from msi afterburner, the gpu was running all the time at 98% not at 99% as usuall.
I went back few hours later to the x32 version, then I had 50khash more and everything was running as usuall at 99%.

Another thing regarding the values given by the autotune, they seems to be off by a factor 2 (on the latest version... I was trying to find a config which could beat the Z one I use...

Another question regarding the lookup gap, to which N factors this one gives advantage. So far I only saw the effect on YAC.
I tried changing the L value for MRC or QQC, but that does'nt have any positive impact...

[beachking2000]

Suffered a slight hit on khash with latest update today using the x kernel. Not sure why. My 460 V2 was at 130 khash dropped back to 120khash. My 660ti dropped from 183khash back to 180 so im guessing its more Fermi related. All in all minor stuff as for some reason I haven't noticed the stratum receive line failed error I would get occasionally after todays update.Anyways Keep up the good work it constantly seems like a awesome work of art. Someday Nvidia chips will smoke the crap outta amd for mining.
Edit: Noticed Chips are only utilizing 97 percent.

[cwizard]

Any idea when we'll get a release to play with, windows binaries?

Thanks,

cwiz

[Trololo2060]

Hi, tru to use GuiMiner-scrypt as it support cudaminer

[OpNop]

Can I call shenanigans on that 2014-01-29 660 TI added to the spreadsheet? I find it very unlikely that a stock 2GB card running the 12-18-2013 build is going to get 409Kh/s (79Kh/s faster then the top 660 TI)

[patoberli]

Built for Windows x86 (also running on x64). https://www.dropbox.com/s/71p1xnwy442mz0m/cudaminer_commit_133_x86.rar
Download latest official cudaminer x86 release from first page and replace the cudaminer.exe with the new one.

[cwizard]

Built for Windows x86 (also running on x64). https://www.dropbox.com/s/71p1xnwy442mz0m/cudaminer_commit_133_x86.rar
Download latest official cudaminer x86 release from first page and replace the cudaminer.exe with the new one.

Thanks, it vomited when I tried to use Y or Z kernel

[cbuchner1]

Thanks, it vomited when I tried to use Y or Z kernel

no vomiting in this forum.

who's gonna mop this up?

[cbuchner1]

Question of the day: What to mine with my nVidia cards?

Yacoin -> this coin is falling (failing?)
MRC -> no luck with solo mining at all. Trying a pool now (mrc.easy-mining.net pool seems to be fixed at last).
VertCoin -> who is currently into this coin? if you are, why?
middlecoin -> the DOGE rush is over, right?

I think what would really be helpful is a profitability calculator for various scrypt-jane coins, taking one's hash rate at different N-factors into account.

Christian

[patoberli]

Wow, Litecoin difficulty is on a rollercoaster:
http://bitcoinwisdom.com/litecoin/difficulty
I think this is a good example for the influence of DOGE and I think MOON, which both probably are over now?!?

Oh and forgot to write, I don't see any difference in Build 113 with Kepler GT 640. Neither in scrypt (litecoin) nor in scrypt-jane (yacoin).

[bigjme]

Doge prices are going up and dowj still but the difficulty has shot up.

I do think we need some sort of profit calculator as things seem very hard to choose whats best at the moment

[djm34]

Question of the day: What to mine with my nVidia cards?

Yacoin -> this coin is falling (failing?)
MRC -> no luck with solo mining at all. Trying a pool now (mrc.easy-mining.net pool seems to be fixed at last).
VertCoin -> who is currently into this coin? if you are, why?
middlecoin -> the DOGE rush is over, right?

I think what would really be helpful is a profitability calculator for various scrypt-jane coins, taking one's hash rate at different N-factors into account.

Christian

Right now, the MRC seems the most profitable (in terms of volume and value) with my one card setup (need a new psu to add my old gtx660 oem)... although the market place where you can exchange them are not so good...  and the price is going down.
The Hashrate for the 780ti is around 1380khash/sec.


I mined vertcoin last week, but this week I would get something like 20/day (390khash/s), not worth it.

QQcoin seems easy to solo mine however the reward can be anything between 4 and 40QQC.
I get around 600khash/sec and from the calculation I made, I should get 1 block every half hour.

Is there any new scrypt jane coin with low N factor around ?

[AizenSou]

I will download and give it a test :-)

Edit: ok so it took 7 attempts and 3 downloads to get the latest build to compile. Bare in mind I have compiled every other release in 1 attempt. It was giving different errors constantly and even sometimes doing nothing

Finally got it to compile and found a drop in performance.
4.77khash/s for the latest
5.04khash/s on the one I built around 12 hours ago

Thats on yacoin with the same configuration as I posted earlier. It was not left to autotune I just ran the settings I did earlier

For scrypt-jane I am seeing mixed results. GT 640 (Compute 3.5) seems a little slower, GTX 780 TIs on Linux slightly faster.
Maybe I can later offer an option to switch between these two (totally different) memory access schemes to the scratchpad.

I am also wondering if you guys still see non-validating shares in conjunction with the lookup gap after this change?
 I can't see much activity when solo-mining, but the pool miners will notice.

Christian

Hi Christian,

I still don't have time to research the profitability of scrypt-jane coins, so I still stick my cudaminer to scrypt coin. Earning steadily over 0.02 BTC/1Mhs daily now (as most as double as middlecoin & multipool co&). If you don't have time to research the new coins, just point your miner to pool.chunky.ms port 6666. I'm currently supporting and working with the pool owner to improve the profit calculator for the new coins.
Check pool.chunky.ms for more information