CCminer(SP-MOD) Modded GPU kernels.

[scryptr]

There was also a cpu-load "bug" just a few CCminer editions back.  The bug used a lot of CPU power, but also increased the hash rate.  It is only with the most recent releases that CCminer can achieve the same or better hash rates.
I'd like to see a command line switch that would allow the miner to engage the CPU for greater hash rates.  On my dedicated rigs I'd engage the CPU, and benefit from the greater hash rate.  On my work computer, I'd leave it out so that my desktop would not freeze.
There was a similar switch in CudaMiner, and it was sometimes effective in mining script.  If the CPU "bug" was ironed out and taught to behave well, I am sure that miners would use it when appropriate.       --scryptr

I guess you are referring to the "bug" I introduced when initially submitted the improved neoscrypt kernel.
I removed this:
cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync);
Which looked to induce a little speed gain, without noticing it also produced 100% cpu load.
We could add a commandline option to disable it, but personally I think the hassle and additional power usage doesn't justify less-than-one-percent hashrate gain.
Still if it's optional, I see no reason not to include it (provided that what it does is well explained).
BTW ethereum cudaminer has a similar option.

And 50Watt more power on the rig.. So 50 watt for 1KHASH gain

DETAILS, DETAILS--

I do not know the exact details,  I was considering 10.2Mh/s vs. 10.6Mh/s for Quark.  I am not the dev, just the miner.  If the CPU can be tasked to improve a few of the algos, I am in favor of the command line switch.  Quark hash rates are a "big deal" to any miner just now.  Neoscrypt rates matter also, but, like Lyra2v2, you might need to mine the coin instead of a BTC exchange rate.  VTC markets are looking up, I haven't traded FTC and the merge-mined companion coins for a while, but I just might.

      --scryptr

[pallas]

I have the feeling that the faster hashrate reporting, and maybe other issues, are not related to the reporting itself.
It is now exiting lighting fast when I hit ctrl-C, it never was that fast, it always took some seconds. Now a blink of an eye.
It looks like the jobs sent to the gpu are computed much faster (but the hashrate is the same), maybe they are smaller.... I don't know how to check this.

[sp_]

There was also a cpu-load "bug" just a few CCminer editions back.  The bug used a lot of CPU power, but also increased the hash rate.  It is only with the most recent releases that CCminer can achieve the same or better hash rates.
I'd like to see a command line switch that would allow the miner to engage the CPU for greater hash rates.  On my dedicated rigs I'd engage the CPU, and benefit from the greater hash rate.  On my work computer, I'd leave it out so that my desktop would not freeze.
There was a similar switch in CudaMiner, and it was sometimes effective in mining script.  If the CPU "bug" was ironed out and taught to behave well, I am sure that miners would use it when appropriate.       --scryptr

I guess you are referring to the "bug" I introduced when initially submitted the improved neoscrypt kernel.
I removed this:
cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync);
Which looked to induce a little speed gain, without noticing it also produced 100% cpu load.
We could add a commandline option to disable it, but personally I think the hassle and additional power usage doesn't justify less-than-one-percent hashrate gain.
Still if it's optional, I see no reason not to include it (provided that what it does is well explained).
BTW ethereum cudaminer has a similar option.

And 50Watt more power on the rig.. So 50 watt for 1KHASH gain

DETAILS, DETAILS--
I do not know the exact details,  I was considering 10.2Mh/s vs. 10.6Mh/s for Quark.  I am not the dev, just the miner.  If the CPU can be tasked to improve a few of the algos, I am in favor of the command line switch.  Quark hash rates are a "big deal" to any miner just now.  Neoscrypt rates matter also, but, like Lyra2v2, you might need to mine the coin instead of a BTC exchange rate.  VTC markets are looking up, I haven't traded FTC and the merge-mined companion coins for a while, but I just might.
      --scryptr

ok, I will add the switch. It will add cpu work on all the algos..

[djm34]

Hi All
Being watching this thread with interest the past could of weeks & decided to move over from ageing old AMD's to Nvidia and build my first 750ti rig. which is now up and running  
I've got to ask tsiv how are you getting 5700 from the 750ti? mine are only doing 4600  
wDragon

Wrote a faster version of the lyra kernel. Magic.

ah getting now 5.9MH/s (and up to 6MH/s with some stronger OC) on the 750ti... funny though that kernel doesn't perform that well on the 980 (getting only 10.6MH getting about same as the public (kernel setting was way off) and my other private kernel is doing 15MH/s)

[fenomenhaa]

Hi All
Being watching this thread with interest the past could of weeks & decided to move over from ageing old AMD's to Nvidia and build my first 750ti rig. which is now up and running  
I've got to ask tsiv how are you getting 5700 from the 750ti? mine are only doing 4600  
wDragon

Wrote a faster version of the lyra kernel. Magic.

ah getting now 5.9MH/s (and up to 6MH/s with some stronger OC) on the 750ti... funny though that kernel doesn't perform that well on the 980 (getting only 10.6MH getting about same as the public (kernel setting was way off) and my other private kernel is doing 15MH/s)

@Djm Pls add VTC adress to your signature.
@Pallas u too )
@sp 4106e4d023060e19abdbbf2aa45dec23d40a5694f486b5dbfea656b7a92c3b74 , i was busy all week, I'll send more soon.. Miners didn't worked for some time , i have to collect more )

[sp_]

ccminer-1.5.62-git-spmod  (Gpu clock=1366 mhz) (Mem clock=3004 mhz)

Quark
ccminer.exe -i 22.9 -r 5 -R 5 -m --cpu-priority 5 -q -a quark -o stratum+tcp://quark.usa.nicehash.com:3345 -u x -p x

2 X Gtx 970 = 33 100 kh/s
Gtx 970 = 16 550 kh/s per card average
0.0132 btc/day atm

Lyra2v2
ccminer.exe -i 19.4 -r 5 -R 5 -m --cpu-priority 5 -q -a lyra2v2 -o stratum+tcp://lyra2rev2.usa.nicehash.com:3347 -u x -p x

2 X Gtx 970 = 19 825 kh/s
Gtx 970 = 9 912 kh/s per card average
0.00793 btc/day atm

ccminer-1.5.63-git-spmod  (Gpu clock=1366 mhz) (Mem clock=3004 mhz)

Quark
ccminer.exe -i 22.9 -r 5 -R 5 -m --cpu-priority 5 -q -a quark -o stratum+tcp://quark.usa.nicehash.com:3345 -u x -p x

2 X Gtx 970 = 33 350 kh/s (+250 kh/s)  
Gtx 970 = 16 675 kh/s per card average
0.0133 btc/day atm

Lyra2v2
ccminer.exe -i 19.4 -r 5 -R 5 -m --cpu-priority 5 -q -a lyra2v2 -o stratum+tcp://lyra2rev2.usa.nicehash.com:3347 -u x -p x

2 X Gtx 970 = 19 900 kh/s (+75 kh/s)  
Gtx 970 = 9 950 kh/s per card average
0.00796 btc/day atm

Quark is 66% more profitable than lyra2v2.

[Amph]

ccminer-1.5.62-git-spmod  (Gpu clock=1366 mhz) (Mem clock=3004 mhz)

Quark
ccminer.exe -i 22.9 -r 5 -R 5 -m --cpu-priority 5 -q -a quark -o stratum+tcp://quark.usa.nicehash.com:3345 -u x -p x

2 X Gtx 970 = 33 100 kh/s
Gtx 970 = 16 550 kh/s per card average
0.0132 btc/day atm

Lyra2v2
ccminer.exe -i 19.4 -r 5 -R 5 -m --cpu-priority 5 -q -a lyra2v2 -o stratum+tcp://lyra2rev2.usa.nicehash.com:3347 -u x -p x

2 X Gtx 970 = 19 825 kh/s
Gtx 970 = 9 912 kh/s per card average
0.00793 btc/day atm

ccminer-1.5.63-git-spmod  (Gpu clock=1366 mhz) (Mem clock=3004 mhz)

Quark
ccminer.exe -i 22.9 -r 5 -R 5 -m --cpu-priority 5 -q -a quark -o stratum+tcp://quark.usa.nicehash.com:3345 -u x -p x

2 X Gtx 970 = 33 350 kh/s (+250 kh/s)  
Gtx 970 = 16 675 kh/s per card average
0.0133 btc/day atm

Lyra2v2
ccminer.exe -i 19.4 -r 5 -R 5 -m --cpu-priority 5 -q -a lyra2v2 -o stratum+tcp://lyra2rev2.usa.nicehash.com:3347 -u x -p x

2 X Gtx 970 = 19 900 kh/s (+75 kh/s)  
Gtx 970 = 9 950 kh/s per card average
0.00796 btc/day atm

Quark is 66% more profitable than lyra2v2.

is quark the most profitable right now?

[sp_]

No the most profitable is Etherum.

but,  if the 750ti was hashing lyra2v2 at 7,636 MHASH it will be more profitable than the public quark kernals. But it isn't. Even with the private kernals.

[fenomenhaa]

ccminer-1.5.62-git-spmod  (Gpu clock=1366 mhz) (Mem clock=3004 mhz)

Quark
ccminer.exe -i 22.9 -r 5 -R 5 -m --cpu-priority 5 -q -a quark -o stratum+tcp://quark.usa.nicehash.com:3345 -u x -p x

2 X Gtx 970 = 33 100 kh/s
Gtx 970 = 16 550 kh/s per card average
0.0132 btc/day atm

Lyra2v2
ccminer.exe -i 19.4 -r 5 -R 5 -m --cpu-priority 5 -q -a lyra2v2 -o stratum+tcp://lyra2rev2.usa.nicehash.com:3347 -u x -p x

2 X Gtx 970 = 19 825 kh/s
Gtx 970 = 9 912 kh/s per card average
0.00793 btc/day atm

ccminer-1.5.63-git-spmod  (Gpu clock=1366 mhz) (Mem clock=3004 mhz)

Quark
ccminer.exe -i 22.9 -r 5 -R 5 -m --cpu-priority 5 -q -a quark -o stratum+tcp://quark.usa.nicehash.com:3345 -u x -p x

2 X Gtx 970 = 33 350 kh/s (+250 kh/s)  
Gtx 970 = 16 675 kh/s per card average
0.0133 btc/day atm

Lyra2v2
ccminer.exe -i 19.4 -r 5 -R 5 -m --cpu-priority 5 -q -a lyra2v2 -o stratum+tcp://lyra2rev2.usa.nicehash.com:3347 -u x -p x

2 X Gtx 970 = 19 900 kh/s (+75 kh/s)  
Gtx 970 = 9 950 kh/s per card average
0.00796 btc/day atm

Quark is 66% more profitable than lyra2v2.

but the lyra2v2 have less power consumption,for my calculations still lyra2v2 a little better.

[restless]

No the most profitable is Etherum.

but,  if the 750ti was hashing lyra2v2 at 7,636 MHASH it will be more profitable than the public quark kernals. But it isn't. Even with the private kernals.

Ethereum?!
Mining with 750 is ok only under Linux, Windows has too many bugs - like getting 5MH instead of 8-9 for unknown reason, or even getting 300-400KH under 8.1
Of 3 750Ti cards I have, 2 can mine with ~ 5MH under Win7, the third - 300KH/s under 8.1

[pallas]

Hi All
Being watching this thread with interest the past could of weeks & decided to move over from ageing old AMD's to Nvidia and build my first 750ti rig. which is now up and running  
I've got to ask tsiv how are you getting 5700 from the 750ti? mine are only doing 4600  
wDragon

Wrote a faster version of the lyra kernel. Magic.

ah getting now 5.9MH/s (and up to 6MH/s with some stronger OC) on the 750ti... funny though that kernel doesn't perform that well on the 980 (getting only 10.6MH getting about same as the public (kernel setting was way off) and my other private kernel is doing 15MH/s)

@Djm Pls add VTC adress to your signature.
@Pallas u too )
@sp 4106e4d023060e19abdbbf2aa45dec23d40a5694f486b5dbfea656b7a92c3b74 , i was busy all week, I'll send more soon.. Miners didn't worked for some time , i have to collect more )

I have added it to my signature now, thanks! :-)

[fenomenhaa]

Hi All
Being watching this thread with interest the past could of weeks & decided to move over from ageing old AMD's to Nvidia and build my first 750ti rig. which is now up and running  
I've got to ask tsiv how are you getting 5700 from the 750ti? mine are only doing 4600  
wDragon

Wrote a faster version of the lyra kernel. Magic.

ah getting now 5.9MH/s (and up to 6MH/s with some stronger OC) on the 750ti... funny though that kernel doesn't perform that well on the 980 (getting only 10.6MH getting about same as the public (kernel setting was way off) and my other private kernel is doing 15MH/s)

@Djm Pls add VTC adress to your signature.
@Pallas u too )
@sp 4106e4d023060e19abdbbf2aa45dec23d40a5694f486b5dbfea656b7a92c3b74 , i was busy all week, I'll send more soon.. Miners didn't worked for some time , i have to collect more )

I have added it to my signature now, thanks! :-)

TrxID: e34c49ffa4226e995a42b56b812d942188fd44b63d2ea6d8500f86c9ec5970f0 @ 2015-09-02 08:00:22 better then nothing.. ))

[djm34]

No the most profitable is Etherum.

but,  if the 750ti was hashing lyra2v2 at 7,636 MHASH it will be more profitable than the public quark kernals. But it isn't. Even with the private kernals.

I might have a look at that quark at some point  
anyhow mining vtc to just dump it right away on the exchange isn't really the point anyone having done that clearly missed sunday events  

[Genoil]

No the most profitable is Etherum.

but,  if the 750ti was hashing lyra2v2 at 7,636 MHASH it will be more profitable than the public quark kernals. But it isn't. Even with the private kernals.

Ethereum?!
Mining with 750 is ok only under Linux, Windows has too many bugs - like getting 5MH instead of 8-9 for unknown reason, or even getting 300-400KH under 8.1
Of 3 750Ti cards I have, 2 can mine with ~ 5MH under Win7, the third - 300KH/s under 8.1

You're absolutely right. It's killing me 

Meanwhile I've managed to speed up the kernel by about 2-3% using lop3.b32 PTX instruction (new in CUDA 7.5) in keccak. Might be useful for other coins as well.

https://github.com/Genoil/cpp-ethereum/blob/cudaminer-frontier/libethash-cuda/keccak.cuh

[djm34]

and a little more  (the 750ti is oc at +200 mem/core, actually core matters more than mem)

[pallas]

and a little more  (the 750ti is oc at +200 mem/core, actually core matters more than mem)

so the question is once again: what do you wanna do with it? :-)

[tsiv]

and a little more  (the 750ti is oc at +200 mem/core, actually core matters more than mem)

Nice, didn't take you too long

I'm thinking we agree on how it should be done, tried that one thing I hadn't had time to try yet



Weirdest thing is power use dropped from 440ish to 400ish 

[sp_]

I submitted a speedup in the blakecoin. 70% faster

 (-a blakecoin)

[sp_]

And 50Watt more power on the rig.. So 50 watt for 1KHASH gain

DETAILS, DETAILS--
I do not know the exact details,  I was considering 10.2Mh/s vs. 10.6Mh/s for Quark.  I am not the dev, just the miner.  If the CPU can be tasked to improve a few of the algos, I am in favor of the command line switch.  Quark hash rates are a "big deal" to any miner just now.  Neoscrypt rates matter also, but, like Lyra2v2, you might need to mine the coin instead of a BTC exchange rate.  VTC markets are looking up, I haven't traded FTC and the merge-mined companion coins for a while, but I just might.
      --scryptr

I have made the switch now. Quark seems to do 30KHASH bether per card. and the cpu load is 80%. +30watt(or depends on your cpu) The new switch is called -C (--cpu-mining) It should work on all algos, but not tested.

I will test some more and submitt to github.

[sp_]

-Blakecoin 70% faster
-Added a new switch -C (cpu-mining) If you want to cpu help the gpu. works on all algos.
-fixed some bugs like the color output and rapid hash outputs.

1.5.64(sp-MOD) is available here: (02-09-2015)

https://github.com/sp-hash/ccminer/releases/

The sourcecode is available here:

https://github.com/sp-hash/ccminer