Topic: CCminer(SP-MOD) Modded NVIDIA Maxwell / Pascal kernels. - page 1017. (Read 2347601 times)

Quote from: zTheWolfz on August 04, 2015, 05:10:36 AM

Quote from: joblo on August 04, 2015, 01:14:51 PM

Axiom with a 80-120% faster cpu miner.
https://github.com/nicehash/cpuminer-multi/releases
By using cpu-simdinstructions.
I think I want to finish the gpu miner now Grin

Downloaded the win-64bit and can't get it to work error: "unable to start correctly (0xc000007b) click to close."

there are 3 versions, you need to run the correct one for your cpu. (amd or intel?)

cpuminer64_SSE.exe miner: ~220 H/s
cpuminer64_AVX.exe miner: ~240 H/s
cpuminer64_AVX2.exe miner: ~260 H/s

I think the 750ti is only doing around 150 H/s

Perhaps it would be nice to make a hybrid miner. (cpu+gpu)

Found the problem and fixed on the SR2, needed to install vcredist_64.
24 cores @ 3.33Ghz getting up to 290.xx h/s at max. about 250h/s with 20 cores, leaving cores free for GPU's to use.

Edit: NiceHash-Axiom-Launcher-v1.0.0.0 works really nice, quick easy setup.
Will rename and test with other cpuminer_x64.exe, SSE and so on from the other zip later to find the best core +hash for my rigs..

djm34

legendary

Activity: 1400

Merit: 1050

Quote from: sp_ on August 04, 2015, 11:09:18 AM

I was thinking of a hybrid miner when I noticed how well cpuminer-multi hashed lyra2. If the best performing
cpu sub-algo could be offloaded from the gpu, the gpu could work more on the other sub-algos. Even if the offloaded
sub-algo is slower on a cpu wouldn't the parallelization result in a higher overall hash rate?

The problem is the pci-e bandwidth. Moving buffers through 1x pcie will slow.. I was thinking let the cpu work in parallell to find hashes togeter with the gpu.
The cpu code is already written... But perhaps bether to just run 2 miners. one for the cpu and one for the gpu..

I was wondering about bandwidth. I don't know the details about data movement between cpu and gpu
but that never stpos me from speculating.
What if the cpu handles either the first algo in the chain or the last algo? Would that reduce the data flow
or is the handoff between algos more data intensive than either the start or end of the chain?

the only algo you would want to put on the cpu is in the middle... for the rest the gpu is much faster than the cpu

djm34

legendary

Activity: 1400

Merit: 1050

Quote from: djm34 on August 04, 2015, 07:52:32 AM

Quote from: chrysophylax on August 04, 2015, 05:41:57 AM

Quote from: zTheWolfz on August 04, 2015, 05:10:36 AM

Quote from: sp_ on August 04, 2015, 11:09:18 AM

Axiom with a 80-120% faster cpu miner.
https://github.com/nicehash/cpuminer-multi/releases
By using cpu-simdinstructions.
I think I want to finish the gpu miner now Grin

Downloaded the win-64bit and can't get it to work error: "unable to start correctly (0xc000007b) click to close."

there are 3 versions, you need to run the correct one for your cpu. (amd or intel?)

cpuminer64_SSE.exe miner: ~220 H/s
cpuminer64_AVX.exe miner: ~240 H/s
cpuminer64_AVX2.exe miner: ~260 H/s

I think the 750ti is only doing around 150 H/s

Perhaps it would be nice to make a hybrid miner. (cpu+gpu)

that would be good ...

a hybrid with the option to use cpu OR gpu - not just cpu AND gpu ...

btw - ive seen somewhere that the 750ti does around the 350H mark ...

#crysx

actually, it isn't possible (whatever hybrid means because in that case, I don't really understand):
The fast part (shabal) is slowed down by mem access.
So moving shabal to cpu would slow down, and saving to ram instead of vram would slow down again.

The only way to increase the speed here is by playing with warp shuffle which won't be practical since the hash is updated at each iteration...
and probably not faster

I was thinking of a hybrid miner when I noticed how well cpuminer-multi hashed lyra2. If the best performing
cpu sub-algo could be offloaded from the gpu, the gpu could work more on the other sub-algos. Even if the offloaded
sub-algo is slower on a cpu wouldn't the parallelization result in a higher overall hash rate?

may-be it is worth trying (well until the 10th... for lyra), don't know.
Problem being to transfer the hashes from the gpu to the cpu do a loop over those hashes, then send them back to the gpu...
not sure if there would be a lot to gain...

joblo

legendary

Activity: 1470

Merit: 1114

Quote from: sp_ on August 04, 2015, 03:28:01 AM

I was thinking of a hybrid miner when I noticed how well cpuminer-multi hashed lyra2. If the best performing
cpu sub-algo could be offloaded from the gpu, the gpu could work more on the other sub-algos. Even if the offloaded
sub-algo is slower on a cpu wouldn't the parallelization result in a higher overall hash rate?

The problem is the pci-e bandwidth. Moving buffers through 1x pcie will slow.. I was thinking let the cpu work in parallell to find hashes togeter with the gpu.
The cpu code is already written... But perhaps bether to just run 2 miners. one for the cpu and one for the gpu..

I was wondering about bandwidth. I don't know the details about data movement between cpu and gpu
but that never stpos me from speculating.
What if the cpu handles either the first algo in the chain or the last algo? Would that reduce the data flow
or is the handoff between algos more data intensive than either the start or end of the chain?

I do a quasi hybrid whenever lyra is paying well by running ccminer & cpuminer-multi simultaneously.
I haven't noticed a drop in ccminer performance even when cpuminer-multi is running n threads.
The cpu miners of other algos don't hash nearly as well so it's not worth it.

bensam1231

legendary

Activity: 1764

Merit: 1024

Something to consider about Axiom, you don't get the amount of coins the pools show per day. Since it's hybrid PoW/PoS, you get about half the quoted coins by the pool, which makes it not every profitable, CPU or GPU mining.

Quote from: chrysophylax on August 04, 2015, 02:40:58 AM

Quote from: blue-yu on August 04, 2015, 12:30:21 AM

Hello,
I plan to retire my 6x750ti and since everybody is talking about gigabyte 970 what model to choose? There are two Windforce models: GV-N970WF3-4GD and GV-N970WF3OC-4GD...

retire? ...
the best system ( outside of density ) that you can use currently to date ...
another 18 will be added to the farm very shortly to thefarm - once all the 'other' stuff is got out the way ( including all the personal 'stuff' ) ...
are you in australia? ... ill happily have a home for them ...
#crysx

How many cards do you have now? Where I live a used 750ti goes for around $100 on the second hand market. I am expanding slowly, but ROI is still 6-12Months. The reward/risc is high.

What are you mining to get a 6-12 month ROI?!?! Oo

Mining Quark for instance right now, at $.1144 KwH for a 970 nets $.32 per day after power. That ROI in about 1000 days, or three~ years. Back before SAK crashed, it was about 8-12 months for ROI.

Edit: Release .57 is broken for Neoscrypt. One of my machines (W8) it doesn't do anything and hangs when it connects to the pool, my other machine (W10) only one of the 970s works even though it tries to start all three of them.

sp_

legendary

Activity: 2954

Merit: 1087

Team Black developer

Quote from: djm34 on August 04, 2015, 07:52:32 AM

I was thinking of a hybrid miner when I noticed how well cpuminer-multi hashed lyra2. If the best performing
cpu sub-algo could be offloaded from the gpu, the gpu could work more on the other sub-algos. Even if the offloaded
sub-algo is slower on a cpu wouldn't the parallelization result in a higher overall hash rate?

The problem is the pci-e bandwidth. Moving buffers through 1x pcie will slow.. I was thinking let the cpu work in parallell to find hashes togeter with the gpu.
The cpu code is already written... But perhaps bether to just run 2 miners. one for the cpu and one for the gpu..

joblo

legendary

Activity: 1470

Merit: 1114

Quote from: chrysophylax on August 04, 2015, 05:41:57 AM

Quote from: zTheWolfz on August 04, 2015, 05:10:36 AM

Quote from: bensam1231 on August 04, 2015, 12:53:49 AM

Axiom with a 80-120% faster cpu miner.
https://github.com/nicehash/cpuminer-multi/releases
By using cpu-simdinstructions.
I think I want to finish the gpu miner now Grin

Downloaded the win-64bit and can't get it to work error: "unable to start correctly (0xc000007b) click to close."

there are 3 versions, you need to run the correct one for your cpu. (amd or intel?)

cpuminer64_SSE.exe miner: ~220 H/s
cpuminer64_AVX.exe miner: ~240 H/s
cpuminer64_AVX2.exe miner: ~260 H/s

I think the 750ti is only doing around 150 H/s

Perhaps it would be nice to make a hybrid miner. (cpu+gpu)

that would be good ...

a hybrid with the option to use cpu OR gpu - not just cpu AND gpu ...

btw - ive seen somewhere that the 750ti does around the 350H mark ...

#crysx

actually, it isn't possible (whatever hybrid means because in that case, I don't really understand):
The fast part (shabal) is slowed down by mem access.
So moving shabal to cpu would slow down, and saving to ram instead of vram would slow down again.

The only way to increase the speed here is by playing with warp shuffle which won't be practical since the hash is updated at each iteration...
and probably not faster

I was thinking of a hybrid miner when I noticed how well cpuminer-multi hashed lyra2. If the best performing
cpu sub-algo could be offloaded from the gpu, the gpu could work more on the other sub-algos. Even if the offloaded
sub-algo is slower on a cpu wouldn't the parallelization result in a higher overall hash rate?

Grout

full member

Activity: 139

Merit: 100

Quote from: blue-yu on August 04, 2015, 12:30:21 AM

Hello,

I plan to retire my 6x750ti and since everybody is talking about gigabyte 970 what model to choose? There are two Windforce models: GV-N970WF3-4GD and GV-N970WF3OC-4GD...

Just a FYI, this isn't a upgrade. You're going to lose hashrate and efficiency. Only thing you'll gain is density.

That's not true everywhere. In France for example :

GTX 750Ti	145€	5875kH/s	62W	40.52kH/€	94.76kH/W
GTX 970	335€	16500kH/s	180W	49.25kH/€	91.67kH/W

Prices come from amazon.fr. Hashrates and power consumption (with a 80plus gold PSU) from the wall come from my own measurements. They were made on Quark, but I assume the scaling must be similar on different algos.
That's only a 3% advantage on H/W, which is easy to nullify with a slight underclocking of the 970s, but a massive 24% difference in initial investment.
And that's without counting the fact that you need almost 3 times more CPUs/mobos/RAM/PSUs/USB bootdrives/space...

So, if you already have a 750Ti rig, keep it. But if you are building a new one, do the math with your own costs.

djm34

legendary

Activity: 1400

Merit: 1050

Quote from: chrysophylax on August 04, 2015, 05:41:57 AM

Quote from: zTheWolfz on August 04, 2015, 05:10:36 AM

Quote from: tbearhere on August 04, 2015, 06:13:53 AM

Axiom with a 80-120% faster cpu miner.
https://github.com/nicehash/cpuminer-multi/releases
By using cpu-simdinstructions.
I think I want to finish the gpu miner now Grin

Downloaded the win-64bit and can't get it to work error: "unable to start correctly (0xc000007b) click to close."

there are 3 versions, you need to run the correct one for your cpu. (amd or intel?)

cpuminer64_SSE.exe miner: ~220 H/s
cpuminer64_AVX.exe miner: ~240 H/s
cpuminer64_AVX2.exe miner: ~260 H/s

I think the 750ti is only doing around 150 H/s

Perhaps it would be nice to make a hybrid miner. (cpu+gpu)

that would be good ...

a hybrid with the option to use cpu OR gpu - not just cpu AND gpu ...

btw - ive seen somewhere that the 750ti does around the 350H mark ...

#crysx

actually, it isn't possible (whatever hybrid means because in that case, I don't really understand):
The fast part (shabal) is slowed down by mem access.
So moving shabal to cpu would slow down, and saving to ram instead of vram would slow down again.

The only way to increase the speed here is by playing with warp shuffle which won't be practical since the hash is updated at each iteration...
and probably not faster

djm34

legendary

Activity: 1400

Merit: 1050

Quote from: djm34 on August 04, 2015, 05:09:49 AM

Quote from: go6ooo1212 on August 04, 2015, 04:33:14 AM

Quote from: sp_ on August 04, 2015, 03:28:01 AM

Axiom with a 80-120% faster cpu miner.

https://github.com/nicehash/cpuminer-multi/releases

By using cpu-simdinstructions.

I think I want to finish the gpu miner now Grin

It would be nice too see , a comparison between Nvidia and CPUs here

a 980 gets around 1kh/s
a 750ti gets about the same as a cpu

I wonder what a 980ti would get?

I clearly won't buy one for that coin Grin

lawrencelyl

member

Activity: 94

Merit: 10

Axiom getting close to 150H/s on my i7-4790K (@4GHz, Turbo disabled)

blue-yu

newbie

Activity: 58

Merit: 0

Quote from: chrysophylax on August 04, 2015, 02:40:58 AM

Quote from: blue-yu on August 04, 2015, 12:30:21 AM

Hello,
I plan to retire my 6x750ti and since everybody is talking about gigabyte 970 what model to choose? There are two Windforce models: GV-N970WF3-4GD and GV-N970WF3OC-4GD...

retire? ...
the best system ( outside of density ) that you can use currently to date ...
another 18 will be added to the farm very shortly to thefarm - once all the 'other' stuff is got out the way ( including all the personal 'stuff' ) ...
are you in australia? ... ill happily have a home for them ...
#crysx

How many cards do you have now? Where I live a used 750ti goes for around $100 on the second hand market. I am expanding slowly, but ROI is still 6-12Months. The reward/risc is high.

Thanks all for the info. I will then stick to my 6*750ti

It look like there is no second hand 750ti yet in Serbia. After over a year of mining, rig paid for itself and I purchased airplane tickets to Croatian coast with bitcoins

Long live 750ti

zTheWolfz

full member

Activity: 231

Merit: 150

Quote from: zTheWolfz on August 04, 2015, 05:10:36 AM

Quote from: djm34 on August 04, 2015, 05:09:49 AM

Axiom with a 80-120% faster cpu miner.

https://github.com/nicehash/cpuminer-multi/releases

By using cpu-simdinstructions.

I think I want to finish the gpu miner now Grin

Downloaded the win-64bit and can't get it to work error: "unable to start correctly (0xc000007b) click to close."

Edit: strange it works on my Intel 980x CPU with the same w7 64bit OS, Must have something different installed or not on the other.

Seeing 140 h/s @ 3.6Ghz 6 core 12 w/HT enabled.

Getting the same error on all three of the EVGA SR2's, something about the SR2 it doesn't like.
I'd test on my AMD H8QGi+F 4P 32 core system, but don't feel like messing with Linux Mint at the moment. lol

tbearhere

legendary

Activity: 3164

Merit: 1003

Quote from: go6ooo1212 on August 04, 2015, 04:33:14 AM

Axiom with a 80-120% faster cpu miner.

https://github.com/nicehash/cpuminer-multi/releases

By using cpu-simdinstructions.

I think I want to finish the gpu miner now Grin

It would be nice too see , a comparison between Nvidia and CPUs here

a 980 gets around 1kh/s
a 750ti gets about the same as a cpu

I wonder what a 980ti would get?

zTheWolfz

full member

Activity: 231

Merit: 150

Getting on the usa server seems to made it jump a little in hash rate.
Was on the eu server.

go6ooo1212

legendary

Activity: 1512

Merit: 1000

quarkchain.io

..and which CPU reaches 260H/s - that what I'm missing somewhere. My E3 -1225v3 with avx2 support reaches 87H/s...

chrysophylax

legendary

Activity: 2912

Merit: 1091

--- ChainWorks Industries ---

Quote from: zTheWolfz on August 04, 2015, 05:10:36 AM