CCminer(SP-MOD) Modded GPU kernels.

[sp_]

But I am more interested in your optimized quark kernal, do you mind to share it with us?

[bensam1231]

hi sp ...

initial results of fresh compile and mining at givemecoins using only -X 15 and --diff .5 with no oc or firmware tweaking ... just stock ...

*** ccminer 1.5.61-git(SP-MOD) for nVidia GPUs by sp-hash@github ***
        Built with the nVidia CUDA SDK 6.5

  Based on pooler cpuminer 2.3.2 and the tpruvot@github fork
   CUDA support by Christian Buchner, Christian H. and DJM34
  Includes optimizations implemented by sp , klaust, tpruvot and tsiv.

[2015-08-24 16:56:18] tid(0x0000047e) XIntensity set to 15, 983040 cuda threads
[2015-08-24 16:56:23] tid(0x00000515) Starting Stratum on stratum+tcp://mining-ace.granitecoin.com:6001/


[2015-08-24 16:57:55] tid(0x00000515) accepted: 358/360 (99.44%), 24145 kH/s yes!
[2015-08-24 16:57:55] tid(0x00000515) accepted: 359/361 (99.45%), 24145 kH/s yes!
[2015-08-24 16:57:55] tid(0x00000515) accepted: 360/362 (99.45%), 24145 kH/s yes!
[2015-08-24 16:57:55] tid(0x00000515) Stratum difficulty set to 4
[2015-08-24 16:57:56] tid(0x00000519) GPU #2: GeForce GTX 750 Ti, 4068 Temp= 59C Fan= 47%
[2015-08-24 16:57:56] tid(0x00000515) accepted: 361/363 (99.45%), 24145 kH/s yes!
[2015-08-24 16:57:56] tid(0x0000051a) GPU #3: GeForce GTX 750 Ti, 4001 Temp= 59C Fan= 46%
[2015-08-24 16:57:56] tid(0x0000051b) GPU #4: GeForce GTX 750 Ti, 4080 Temp= 62C Fan= 49%
[2015-08-24 16:57:56] tid(0x00000518) GPU #1: GeForce GTX 750 Ti, 3989 Temp= 57C Fan= 45%
[2015-08-24 16:57:56] tid(0x00000515) accepted: 362/364 (99.45%), 24145 kH/s yes!
[2015-08-24 16:57:56] tid(0x00000515) accepted: 363/365 (99.45%), 24145 kH/s yes!
[2015-08-24 16:57:56] tid(0x00000515) accepted: 364/366 (99.45%), 24145 kH/s yes!
[2015-08-24 16:57:56] tid(0x00000515) accepted: 365/367 (99.46%), 24145 kH/s yes!
[2015-08-24 16:57:57] tid(0x00000517) GPU #0: GeForce GTX 750 Ti, 4010 Temp= 61C Fan= 48%
[2015-08-24 16:57:57] tid(0x00000515) accepted: 366/368 (99.46%), 24145 kH/s yes!
[2015-08-24 16:57:58] tid(0x00000519) GPU #2: GeForce GTX 750 Ti, 4092 Temp= 60C Fan= 47%
[2015-08-24 16:57:58] tid(0x00000515) accepted: 367/369 (99.46%), 24146 kH/s yes!
[2015-08-24 16:58:01] tid(0x0000051c) GPU #5: GeForce GTX 750 Ti, 4012 Temp= 61C Fan= 48%
[2015-08-24 16:58:01] tid(0x00000515) accepted: 368/370 (99.46%), 24146 kH/s yes!

when the mining stabalizes in the next 15-30mins - that will show a more accurate figure ...
i like the temp and fan displays too - nice ... why not shorten T=xx F=xx ? ...
what is this new part also - tid? ...
#crysx

Thread id. I think I should remove it. The temps and fanspeed is only working in the linux version. The changes in the output is written by t-nelson, and I have merged his changes into my fork.

I know it's a dead horse by now, but have you tried having the first few lines of ccminer fixed instead of scrolling and put some info like temp and fan speed there, like sg/cgminer? The issue with the first approach was that linux wouldn't support it but surely there's another way.

OOOOH SGMINER STATS! *starts fapping vigorously*

Everyone is overly concerned about Nix, but pretty sure most people don't mine with it. Maybe ridiculously huge farms use it (I know a few that don't), but I doubt that's the main 'clientele' not that there is really any clientele when you're making something for free though.

[lawrencelyl]

I have only added 500KHASH on the 980 (sp-mod 61-git) Which algos did you rewrite? And will you make it public?

rewrote lyra2 code:

Good job.
I guess the new kernal is using more power?

yes, the 980 runs at 110% tpd and the 750ti close to 95% (on my gainward stock).
Honestly I will try to backport (if possible... not entirely obvious though, the new kernel relies on warp shuffle technique) some of the change to amd before releasing it, I don't want to create more imbalance...

Will it be available for public?
Donation will follow

[scryptr]

CCMINER CONTRIBUTIONS--

I have been donating whenever a significant improvement in CCminer has been made.  The last few weeks have been really good, improvement wise.  Any contribution by the talented developers and coders should be matched by donations from the miners.       --scryptr

[fenomenhaa]

But I am more interested in your optimized quark kernal, do you mind to share it with us?

Agree that idea. As i said many many times,i'm always ready for donations for improved kernels.Is there anybody have an experience with new maxwell cards(950) ? )))

[sp_]

Look's like the colors are gone after the pull request from mr Nelson  on windows. Might do a rollback

[zTheWolfz]

+150kh/s on 750ti
+3MH/s on 980  

Which algo?  On latest sp_'s github?

lyra2rev2, not released yet...

Eagerly waiting

I have only added 500KHASH on the 980 (sp-mod 61-git) Which algos did you rewrite? And will you make it public?

rewrote lyra2 code:

Very nice!
I could test for you on GTX960? ;-)

[scryptr]

Look's like the colors are gone after the pull request from mr Nelson  on windows. Might do a rollback

THREAD ID (TID)---

Maybe the TID stats will give you a grip on the gpu-threads switch?  My Linux build of commit 958 looks nice, I like the stats, and it produces more hash than release dot 61 (fixed) when mining Lyra2v2.       --scryptr

EDIT:  I experimented with "-g 2" mining lyra2v2.  I had to back the intensity down to "-i 15" from "-i 19.5" in order to launch.  I used my GTX 750ti FTW rig, and got matching TIDs on all 12 gpu threads.  That is, gpu0 had a TID that always matched gpu0, and so on for gpu9, etc.  I received a high number of "Does not validate on CPU!" errors, and went back to mining without it.  I did get consistent reports for all 12 virtual gpus, even though only 6 physical gpus are in the rig.

The threads matched, all "gpus" had a report string.  Total hash was less, errors were high.       --scryptr

[sp_]

I have reverted most of nelsons changes. Lyrav2 and lyra is faster because i submitted optimalizations yesterday. Mostly on compute 5.2 devices

[sp_]

EDIT:  I experimented with "-g 2" mining lyra2v2.  I had to back the intensity down to "-i 15" from "-i 19.5" in order to launch.  I used my GTX 750ti FTW rig, and got matching TIDs on all 12 gpu threads.  That is, gpu0 had a TID that always matched gpu0, and so on for gpu9, etc.  I received a high number of "Does not validate on CPU!" errors, and went back to mining without it.  I did get consistent reports for all 12 virtual gpus, even though only 6 physical gpus are in the rig.
The threads matched, all "gpus" had a report string.  Total hash was less, errors were high.       --scryptr

The g parameter needs a different kernal. We fixed it for x11,x13,x14,x15,nist5, quark.  (blake 80) but the other kernals need more work.

[Grout]

Looks like I missed the r61 announcement. Thanks SP! Beer coming your way:
2fe1634ed75e08b0df1deb85bbe98cf8443d4888091fe62086bc560a53c6f690

[djm34]

EDIT:  I experimented with "-g 2" mining lyra2v2.  I had to back the intensity down to "-i 15" from "-i 19.5" in order to launch.  I used my GTX 750ti FTW rig, and got matching TIDs on all 12 gpu threads.  That is, gpu0 had a TID that always matched gpu0, and so on for gpu9, etc.  I received a high number of "Does not validate on CPU!" errors, and went back to mining without it.  I did get consistent reports for all 12 virtual gpus, even though only 6 physical gpus are in the rig.
The threads matched, all "gpus" had a report string.  Total hash was less, errors were high.       --scryptr

The g parameter needs a different kernal. We fixed it for x11,x13,x14,x15,nist5, quark.  (blake 80) but the other kernals need more work.

it would probably be easier to use cudastream

[sp_]

Submitted another small but visible optimalization in quark and x11.

Precalculated 0.75 rounds of blake-512

[hashbrown9000]

I haven't been able to solo mine (only tried quark algo) since build 54 on sp_ version with my 750 ti.  I have tried with every build since 54.  I can solo with the latest djm build.  Anyone else having this issue or have suggestions?

I'm running sp_'s build # 922 and 926 (all 750ti cards) and also cannot mine lyra2v2 solo. miner will start and hash nicely for a minute or two, and then crash.  djm's miner does work with solomining lyra2v2 pretty nicely.

[Slava_K]

On nicehash i see strange things - my home rig (49400 kh) rise in 7 minutes to 65 mh, 25 minutes work on that speed, then go down to 40-44 mh an work on this speed.
P.S. Algo quark.

[pokeytex]

Hiya SP - just checking in to see if there are going to be anymore new optimizations to the spreadcoin miner?  Is another donation needed?

[sp_]

Looks like I missed the r61 announcement. Thanks SP! Beer coming your way:
2fe1634ed75e08b0df1deb85bbe98cf8443d4888091fe62086bc560a53c6f690

Thanks for your support

[sp_]

On nicehash i see strange things - my home rig (49400 kh) rise in 7 minutes to 65 mh, 25 minutes work on that speed, then go down to 40-44 mh an work on this speed.
P.S. Algo quark.

Check the temperature of the cards with gpu-z. If they start to trottle (reach 70 degrees +) the cards will downclock and you loose performance. This happens to one of my gtx 970 cards.

Starts at 15.5MHASH and then drops to 13.8 MHASH after some minutes of mining because of trottling (quark)
The gigabyte windforce oc has bether cooling and keeps a steady 16,5 MHASH

You could try to overclock and overvolt the card then the trottleing will start on a higher temperature.

[sp_]

Hiya SP - just checking in to see if there are going to be anymore new optimizations to the spreadcoin miner?  Is another donation needed?

I think I can squeze a few percent out of it. It's been a while since I looked at it. Donations are welcome, they motivate me.

[duboisi]

Hiya SP - just checking in to see if there are going to be anymore new optimizations to the spreadcoin miner?  Is another donation needed?

I think I can squeze a few percent out of it. It's been a while since I looked at it. Donations are welcome, they motivate me.

Spreadcoin miner improvement donation:
08/25/2015   DASH   1.67536096   Completed
Address: XdgfWywdxABwMdrGUd2xseb6CYy1UKi9jX
TxId: 8d7143b66e3dd6fcb78cc844ebd1235ac9036441d6a38f1e1b28b7d4ef9a9e35