CCminer(SP-MOD) Modded GPU kernels.

[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

[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.

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.

Cards temp is 72-76 degrees, but miner show proper hasrate and freq is stable from 1340 to1400 MHz.
All cards is Asus Strix.

[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.

Cards temp is 72-76 degrees, but miner show proper hasrate and freq is stable from 1340 to1400 MHz.
All cards is Asus Strix.

Could bee a pool problem. (difficulty)
Any rejects?

[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.

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.

Cards temp is 72-76 degrees, but miner show proper hasrate and freq is stable from 1340 to1400 MHz.
All cards is Asus Strix.

Could bee a pool problem. (difficulty)
Any rejects?

Rejects is very rarely, one time in a day or 2 days...

[sp_]

I have ordered a gtx 950 and a gtx 980ti now. ROI in 1 year with the current prices

This meens that I can test and tweak my mod on almost all the available cards.

gtx 750
gtx 750ti
gtx 950
gtx 960
gtx 970
gtx 980
gtx 980ti