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

[cbuchner1]

This isn't paying me enough, does anyone know how I can go back to 2009 and take copies of Cudaminer and CGminer with me to mine Bitcoin instead?

Like a lot of people I really wish I'd heard of it back then

Cudaminer doesn't accelerate SHA256d hashing. I could hack it in within 24 hours I guess... but it isn't 2009 anymore

[cbuchner1]

When there will be another opportunity to have a first-mover advantage, I might jump at it.

thanks Christian for sharing this advantage!

I think there might be such a chance:

as i understood one "feature" of maxcoin is to switch the hashing algorithm if this is done, every miner (except max keiser himself) is kicked out of the game and max is solo mining his maxcoin again.
i think this was also intended for the "fair" start of the coin - release only a cpu miner and anounce it as gpu safe.
i am pretty sure max and his team mined with a gpu miner (or even fpga) from the beginning since this kaccak has no feature to make it gpu or fpga or even asic resistant.

--
Dobob

they would have to roll out network wide hashing algorithm changes at least two weeks before the date, so everyone has a chance to update their wallets. Otherwise the rollout would fail.

That gives GPU programmers enough time to update their miners...

[sambiohazard]

@whitetoo

i dont know what it technically means but i guess you can get rid of it by using smaller numbers in your lanch config and use F not f which is different.

[whitetoo]

Managed to get the GTX285 to accept shares after relentless tweaking.
Working starting point for anyone else in the same boat:

cudaminer --algo=keccak -d gtx285 -L128 -i 0 -l F1000x8 --no-autotune -o stratum+tcp://POOL:PORT -u USER -p PASSWORD

Thank you to everyone who has made suggestions.

[Bitice]

Managed to get the GTX285 to accept shares after relentless tweaking.
Working starting point for anyone else in the same boat:

cudaminer --algo=keccak -d gtx285 -L128 -i 0 -l F1000x8 --no-autotune -o stratum+tcp://POOL:PORT -u USER -p PASSWORD

Thank you to everyone who has made suggestions.

My 260GTX works with F1000x6.

The exact line for my 260GTX looks like this:
cudaminer --algo=keccak -d 0 -C 0 -i 0 -H 1 -l F1000x6 -L 256

I get about 5200 khash with this.

[Sigals]

Is anyone mining with cudaminer on max.1gh.com pool successfully?

Code:

[2014-02-08] stratum_subscribe timed out

[sambiohazard]

Is anyone mining with cudaminer on max.1gh.com pool successfully?

Code:

[2014-02-08] stratum_subscribe timed out

Yes but only for last hour or so.

[sambiohazard]

ypool.net ‏@ypool_net  5m
Due to the massive ongoing DDoS attacks motivated by the addition of MaxCoin we decided to drop support for the coin.

)

go solominers

[archtme]

I'm getting alot of "stratum detected new block" rather than actual hashing over at smalltimeminer.

Why is that?

[djm34]

ypool.net ‏@ypool_net  5m
Due to the massive ongoing DDoS attacks motivated by the addition of MaxCoin we decided to drop support for the coin.

)

go solominers

Really ? For the moment the nethashrate has so many digit that I can't read it (1725398699549hash/s difficulty 13915)

[sambiohazard]

ypool.net ‏@ypool_net  5m
Due to the massive ongoing DDoS attacks motivated by the addition of MaxCoin we decided to drop support for the coin.



go solominers

Really ? For the moment the nethashrate has so many digit that I can't read it (1725398699549hash/s difficulty 13915)

I thought some people have mining power in gh/s they can do it.

[Tamis]

Pro rated farms must be mining maxcoin...

I can't even understand how people can get so much gpu mining power !

[cbuchner1]

I made a commit to the github repo that increases the size of some arrays in salsa_kernel.cu to prevent buffer overflow.
It should now be possible to pick larger kernel launch configurations without crashing the program.

I found that now I can use two times the number of CUDA cores as the blocks number in my kernel launch config
on my GTX 780. However the screen updates get a bit laggy now,.

I also commented out some MyStreamSynchronize() calls, so now the following cudaMemcpy() does an implicit synchronization
(however CUDA may use a busy polling mechanism here, taking more CPU).

Overall it's a bit faster for me now. GTX 780 -> 160 MHash. GT 660 Ti -> 115 MHash.  GT 640 -> 30 MHash
numbers before were 140, 100, 25

those who know how to compile themselves can already benefit from these changes.

EDIT: it seems it's mostly Windows getting the hash rate improvements. On Linux I see only a tiny improvement. Also it seems to put a lot of load on the CPU now.

[Stanr010]

Pro rated farms must be mining maxcoin...

I can't even understand how people can get so much gpu mining power !

Well since the release of CGminer, my R9 290X pulls 400mh/s each. It's nice my 780 ti classy gets 256mh/s but it's nowhere near that 400.

[bigjme]

Damn you windows!
Think I need to try and bring my linux back to life

[Tamis]

Pro rated farms must be mining maxcoin...

I can't even understand how people can get so much gpu mining power !

Well since the release of CGminer, my R9 290X pulls 400mh/s each. It's nice my 780 ti classy gets 256mh/s but it's nowhere near that 400.

I guess that means ltc diff will be declining for a few days...

In a few hours I went from 0.2 per block to 0.013 while adding 150% hashing power... :/

[MarkEMarkEMark]

Does anyone know why there are DDOS on pools? Is it just vandalism/lulz? Are there people trying to make it fail (or, for conspiracy types, make it more appealing). I don't really understand. I've been mining LTC/DOGE for ages and it's always been fine - just leave your PC and get on with life. With this, I have to keep monitoring. My main mining PC with ATI cards is still mining merrily away. This max thing is sort of a frustrating hobby at the moment.

(thanks for the person who answered my yay/booo question before - I can only post every 360s)

[AizenSou]

I made a commit to the github repo that increases the size of some arrays in salsa_kernel.cu to prevent buffer overflow.
It should now be possible to pick larger kernel launch configurations without crashing the program.

I found that now I can use two times the number of CUDA cores as the blocks number in my kernel launch config
on my GTX 780. However the screen updates get a bit laggy now,.

I also commented out some MyStreamSynchronize() calls, so now the following cudaMemcpy() does an implicit synchronization
(however CUDA may use a busy polling mechanism here, taking more CPU).

Overall it's a bit faster for me now. GTX 780 -> 160 MHash. GT 660 Ti -> 115 MHash.  GT 640 -> 30 MHash
numbers before were 140, 100, 25

those who know how to compile themselves can already benefit from these changes.

Thanks Christian for your hard work. Today is your birthday and you still working.
But again I think we lost our advantage. My GTX 780 which costs 500 Euro able to do 180Mhs.
My R9 280x which costs 300 Euro can 330Mhs.

Again AMD wins in this crypto-race. Damn I feel so bad for nVidia.

[sambiohazard]

Does anyone know why there are DDOS on pools? Is it just vandalism/lulz? Are there people trying to make it fail (or, for conspiracy types, make it more appealing). I don't really understand. I've been mining LTC/DOGE for ages and it's always been fine - just leave your PC and get on with life. With this, I have to keep monitoring. My main mining PC with ATI cards is still mining merrily away. This max thing is sort of a frustrating hobby at the moment.

(thanks for the person who answered my yay/booo question before - I can only post every 360s)

This was on maxcoin thread. May be a joke.

Holy crap this Max Keiser is insane... Have you seen his twitter?

"Max Keiser ‏@maxkeiser  58s
.@crazyjbc Due to reach of @KeiserReport we are doing everything we can to keep the #max price below $20; which is not easy."


"Max Keiser ‏@maxkeiser  40s
We are basicaly playing the trolls for the benefit of anyone who wants to get in under $5. At some point, we won't be able to keep price low"


"Max Keiser ‏@maxkeiser  8m
Just like we made many, many BTC millionaires, I would not be surprised if we create an even greater number of #maxcoin millionaires.

I'm beginning to think that Keiser might actually believe this garbage.

Keeping the price down!!! He's going to have a credibility crisis soon.

[cbuchner1]

Again AMD wins in this crypto-race. Damn I feel so bad for nVidia.

AMD does have a bit more raw power. But when it comes to memory limited coins like scrypt / scrypt-jane the difference is much smaller.

Also I ran into some problems with 63 available registers on the Compute 3.0 architecture being too little to hold all the Keccak state.
So there is some spillage into the GPU memory, which slows us down a bit.