CCminer(SP-MOD) Modded GPU kernels.

[djm34]

sp, any news regarding your GTX 950 ? I received mine today, tested with lyra2v2, and it is not much faster than GTX 750 Ti (only ~15%). I think there is room for improvement.

While on another hand, GTX 950 is the most efficient card for mining Axiom. 900 hps @ 60 W.

no there isn't much: mem bandwidth is the same, core count is more or less the same

[1714669097]

1714669097

[1714669097]

1714669097

[pokeytex]

Can anyone tell me how to get a multi GPU rig mining Ethereum with the ethminer-cuda? I have all Nvidia maxwell cards and have tried everything I could to get it to work.  Any thoughts?  My machines run Windows 8.1 and my .bat file is ethminer -F http://eth2.suprnova.cc:3000/pokeytex.cgar/10 --mining-threads 5

thanks in advance. - pokeytex

CUDA SWITCH--

Where is the Cuda switch "-U"?  And, at a pool, you normally need your account number, not a user name.  You need to generate an account number with Geth, the text-only command line wallet.  Check the several CryptoMining Blog articles on how to set up and run Ethminer, several have been linked on recent pages in this thread.

If you are running Windows 8.1 and have 750ti cards, you will not get optimal results, only ~1Mh/s per card.  There is a known bug.

--scryptr

@Pokeytex : Have you tried Genoil ethminer? If yes, which one?

@Scryptr : Here's suprnova.cc command line for ethminer
 

./ethminer -G -F http://eth2.suprnova.cc:3000/Weblogin.WorkerName/YourHashrateInMH/s

CUDA SWITCH--

The "-U" switch specifies Cuda coding, the "-G" switch specifies OpenCl coding.  If he has nVidia cards, the "-U" switch is best.  And, I haven't tried to mine with Ethminer on Suprnova, so apologies if they have a different setup than the other Ether coin pools regarding user names.

That being said, there are several good tutorials out there for a miner to research.       --scryptr

Yep, that's a fact, I just copy suprnova's getting start line, I should had chane the -G for -U, my bad

I was using -U but my shares dropped off SuprNova and then I was producing nothing.  I was messing with the settings.  My main problem is that i have (5) GPU's on the rig but only the 750ti shows up.  Does anyone know the command to get all GPU's to work?  I am using Genoil's fork of SP and Trupvot.

[djeZo]

I am very disappointed with 980 Ti performance, it seems as if there is some bottleneck that all maxwells share thus 2x faster cards can't get 2x hashing power.

Normally the highend cards are clocked lower than the lowend cards, and this is causing the biggest difference. Download GPU-Z and inspect the clocks. A kernal that use little or no memory will always run at max boost.

A $100 gtx 750 with 512 cuda cores can be clocked stable as high as 1500Mz on the core without extra cooling. And then it mines quark at 750ti speed. ( 6100KHASH)

Classified 980 Ti is clocked higher in fact. So, it is not clock that would explain low speed... I also noticed high bus load (up to 40% on times), while the GTX 950 doesn't have this bus load - same algo, just number of blocks and threads are different.

[sp_]

sp, any news regarding your GTX 950 ? I received mine today, tested with lyra2v2, and it is not much faster than GTX 750 Ti (only ~15%). I think there is room for improvement.
While on another hand, GTX 950 is the most efficient card for mining Axiom. 900 hps @ 60 W.

no there isn't much: mem bandwidth is the same, core count is more or less the same

But since the corecount is low, it should be possible to overclock +200 stable on the core.

[sp_]

Classified 980 Ti is clocked higher in fact. So, it is not clock that would explain low speed... I also noticed high bus load (up to 40% on times), while the GTX 950 doesn't have this bus load - same algo, just number of blocks and threads are different.

Sounds like the kernal need some tuning in the threads per block

[antonio8]

Can anyone tell me how to get a multi GPU rig mining Ethereum with the ethminer-cuda? I have all Nvidia maxwell cards and have tried everything I could to get it to work.  Any thoughts?  My machines run Windows 8.1 and my .bat file is ethminer -F http://eth2.suprnova.cc:3000/pokeytex.cgar/10 --mining-threads 5

thanks in advance. - pokeytex

CUDA SWITCH--

Where is the Cuda switch "-U"?  And, at a pool, you normally need your account number, not a user name.  You need to generate an account number with Geth, the text-only command line wallet.  Check the several CryptoMining Blog articles on how to set up and run Ethminer, several have been linked on recent pages in this thread.

If you are running Windows 8.1 and have 750ti cards, you will not get optimal results, only ~1Mh/s per card.  There is a known bug.

--scryptr

@Pokeytex : Have you tried Genoil ethminer? If yes, which one?

@Scryptr : Here's suprnova.cc command line for ethminer
 

./ethminer -G -F http://eth2.suprnova.cc:3000/Weblogin.WorkerName/YourHashrateInMH/s

CUDA SWITCH--

The "-U" switch specifies Cuda coding, the "-G" switch specifies OpenCl coding.  If he has nVidia cards, the "-U" switch is best.  And, I haven't tried to mine with Ethminer on Suprnova, so apologies if they have a different setup than the other Ether coin pools regarding user names.

That being said, there are several good tutorials out there for a miner to research.       --scryptr

Yep, that's a fact, I just copy suprnova's getting start line, I should had chane the -G for -U, my bad

I was using -U but my shares dropped off SuprNova and then I was producing nothing.  I was messing with the settings.  My main problem is that i have (5) GPU's on the rig but only the 750ti shows up.  Does anyone know the command to get all GPU's to work?  I am using Genoil's fork of SP and Trupvot.

-U --gpu-devices 0 1 2 3 4

The spaces are required. With the --gpu-devices it works like ccminer in picking the devices

[antho281]

Can anyone tell me how to get a multi GPU rig mining Ethereum with the ethminer-cuda? I have all Nvidia maxwell cards and have tried everything I could to get it to work.  Any thoughts?  My machines run Windows 8.1 and my .bat file is ethminer -F http://eth2.suprnova.cc:3000/pokeytex.cgar/10 --mining-threads 5

thanks in advance. - pokeytex

CUDA SWITCH--

Where is the Cuda switch "-U"?  And, at a pool, you normally need your account number, not a user name.  You need to generate an account number with Geth, the text-only command line wallet.  Check the several CryptoMining Blog articles on how to set up and run Ethminer, several have been linked on recent pages in this thread.

If you are running Windows 8.1 and have 750ti cards, you will not get optimal results, only ~1Mh/s per card.  There is a known bug.

--scryptr

@Pokeytex : Have you tried Genoil ethminer? If yes, which one?

@Scryptr : Here's suprnova.cc command line for ethminer
 

./ethminer -G -F http://eth2.suprnova.cc:3000/Weblogin.WorkerName/YourHashrateInMH/s

CUDA SWITCH--

The "-U" switch specifies Cuda coding, the "-G" switch specifies OpenCl coding.  If he has nVidia cards, the "-U" switch is best.  And, I haven't tried to mine with Ethminer on Suprnova, so apologies if they have a different setup than the other Ether coin pools regarding user names.

That being said, there are several good tutorials out there for a miner to research.       --scryptr

Yep, that's a fact, I just copy suprnova's getting start line, I should had chane the -G for -U, my bad

I was using -U but my shares dropped off SuprNova and then I was producing nothing.  I was messing with the settings.  My main problem is that i have (5) GPU's on the rig but only the 750ti shows up.  Does anyone know the command to get all GPU's to work?  I am using Genoil's fork of SP and Trupvot.

-U --gpu-devices 0 1 2 3 4

The spaces are required. With the --gpu-devices it works like ccminer in picking the devices

Worked for me too!

[djeZo]

Classified 980 Ti is clocked higher in fact. So, it is not clock that would explain low speed... I also noticed high bus load (up to 40% on times), while the GTX 950 doesn't have this bus load - same algo, just number of blocks and threads are different.

Sounds like the kernal need some tuning in the threads per block

Axiom uses 2 mega of memory per single thread. This means that we are pretty much limited when it comes to number of blocks&threads that can be run on device. Also, each hash goes through 2x64k shabal256, so it takes a lot of processing time too.

I tried many possible combinations of number of threads and blocks. For GTX950, I achieved best results with 60 threads and 16 blocks. I know the numbers are 'odd'. 64 threads was not possible, since that would be too much for 2 gig onboard memory. For GTX 980 Ti, best is to use only 8 threads and 156 blocks.

[zTheWolfz]

Still seeing a little better numbers from r57 vs r61v4 I think that's the release number for the most recent r61.
with my new tweaked command line, same flags used for both test. Do I have a magic r57 release?      

When comparing releases you should show the results with the same number of accepts in the miner. Since some cards trottle and loose performance over time.

close enough, or would you rather it be spot on?
r61v?



r57



Looks like nicehash or my internet went down just after 6am. Anyone else have that happen?

[antho281]

Yup! Same for my Rigs

[ryen123]

Hashrates from the GTX950

http://cryptomining-blog.com/5600-msi-geforce-gtx-950-gaming-2g-mining-hashrate-and-power-usage/

[zTheWolfz]

Update with same accept count. Same command line used for both.




Edit:x11 r61 better than r57 Seeing mixed results depending on algo mined.  

[lawrencelyl]

Just done some comparison for GTX970 on quark algo.  Release 61 is faster by roughly 200kH/s compared to release 57 and 58.
So probably only GTX960 is affected?

[sp_]

My new gigabyte windforce 980ti is hasing quark at 26.1 MHASH with the opensource (release 61 +) on factory clocks. x11 is at 12.7MHASH. Seems to draw around 250w. But I need to do a wall reading.

[5w00p]

My new gigabyte windforce 980ti is hasing quark at 26.1 MHASH with the opensource (release 61 +) on factory clocks. x11 is at 12.7MHASH. Seems to draw around 250w. But I need to do a wall reading.

Too bad Quark payrates ain't like they were a few months ago, because that is a smoking fast hashrate.

But now that X11 is king on nice/westhash, at least with payrates as they are right at this moment, that 12.7Mhash isn't quite as impressive for a 980Ti.  But not bad.

Sweet card.

[sp_]

My new gigabyte windforce 980ti is hasing quark at 26.1 MHASH with the opensource (release 61 +) on factory clocks. x11 is at 12.7MHASH. Seems to draw around 250w. But I need to do a wall reading.

Too bad Quark payrates ain't like they were a few months ago, because that is a smoking fast hashrate.
But now that X11 is king on nice/westhash, at least with payrates as they are right at this moment, that 12.7Mhash isn't quite as impressive for a 980Ti.  But not bad.
Sweet card.

There is more work to do on x11. X11 hasn't been profitable since wolf0 leaked his binaries in november last year.

Here is my testrig with the latest opensource on factory clocks:

The gigabyte windforce oc 970 is doing 16.7 mhash in quark

the 750ti is an old 38w tdp gainward card. And the 960 is a slow gainward with reference cooler

[5w00p]

Excellent Maxwell Testrig.

950Ti in your future? I will see what I can donate to that cause.

[sp_]

Here is my testrig: Running on an cheap 750w bronze psu. Old gamer pc. Ugly but it works

[sp_]

Excellent Maxwell Testrig.
950Ti in your future? I will see what I can donate to that cause.

Thank you for your support. I hope to work more on the spreadcoinminer. More speed for the donators.

[scryptr]

My new gigabyte windforce 980ti is hasing quark at 26.1 MHASH with the opensource (release 61 +) on factory clocks. x11 is at 12.7MHASH. Seems to draw around 250w. But I need to do a wall reading.

9800 GTX+

My 9800 GTX+ did 14kh/s on scrypt with CudaMiner when I tested it.  Makes me wonder when we'll have 950ti cards, and whether the next generation of cards will have 16nm chips or use layered technology.  What is next?

--scryptr