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BitcoinEXpress
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October 18, 2011, 12:11:42 PM
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October 18, 2011, 12:18:17 PM
 #2

Supercoder and all around genius Coinhunter is looking for someone to develop an OpenCL miner for Solidcoin 2.0. In a totally hypo-critical move he requires it to be "Open Source" LOL  Grin Grin Grin

http://solidcointalk.org/topic/318-first-opencl-miner-for-solidcoin-v20/page__view__findpost__p__3206

As your coding slaves are already working on one, you could publish it and get the bounty ;-)
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October 18, 2011, 12:19:13 PM
 #3

Ehm how is anyone supposed to develop that? By using his "white paper", not much to work with. The guy is trolling himself...

First they ignore you, then they laugh at you, then they keep laughing, then they start choking on their laughter, and then they go and catch their breath. Then they start laughing even more.
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October 18, 2011, 05:13:27 PM
 #4

My colleague is working on a CUDA miner (in C++) for SC2 right now, started last Thursday.

It's Alpha status right now, many crashes and lots of rejects but it gets about 105Khash/s on his GTX470.
My good old 9800GTX is doing around 26Khash/s but there's still a lot of room for improvement.
It looks like nVidia is actually better on scrypt type chains.

Source will be released in about a week but I will be testing it a few days before launch.
Still very buggy...

I need a volunteer to test with GTX5xx series soon, so please PM me if you have one available!

Linux only! (we had some problems with latest Ubuntu and CUDA but back with old version it works again)

And we need a name for it!

edit: I will let BitcoinEXpress in on the Beta as soon as it is available. His knowledge would really help us huge!


 
 
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MaGNeT
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October 18, 2011, 05:28:51 PM
 #5

If anyone has hashrates for ATI 5xxx and 6xxx series, I would like to compare!


 
 
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October 18, 2011, 05:47:52 PM
 #6

If anyone has hashrates for ATI 5xxx and 6xxx series, I would like to compare!

Zero. He said CUDA not OpenCL and CUDA doesn't run on ATI hardware.

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October 18, 2011, 05:51:40 PM
 #7

If anyone has hashrates for ATI 5xxx and 6xxx series, I would like to compare!

Zero. He CUDA not OpenCL and CUDA doesn't run on ATI hardware.


Duh, I know... I'm a (former) hardcore SETI@home miner.
My colleague too, he also did some software optimizations for a 3th party SETI@home cruncher.

We like to compare hashrate to the upcoming OpenCL miner.
If OpenCL does much better, he stops, there is no use to develop.
He knows a lot of CUDA, not OpenCL.


 
 
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johnj
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October 18, 2011, 06:00:27 PM
 #8

Honest question:  If miners are being developed for GPU's, doesn't this effectively push CPU's out of the race?  I thought the whole point of a CPU 'only' chain was a wider distribution.

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October 18, 2011, 06:06:02 PM
 #9

Honest question:  If miners are being developed for GPU's, doesn't this effectively push CPU's out of the race?  I thought the whole point of a CPU 'only' chain was a wider distribution.

It depends on the efficiency => hardware cost + running costs per hashrate.
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October 18, 2011, 06:10:04 PM
 #10

Honest question:  If miners are being developed for GPU's, doesn't this effectively push CPU's out of the race?  I thought the whole point of a CPU 'only' chain was a wider distribution.

It depends on the efficiency => hardware cost + running costs per hashrate.

True, but many of the people involved with mining cryptocurrencies already have an arsenal of GPU's just waiting - which have (probably) already been paid for with Bitcoins.

I can never seem to keep my finger on where CH is headed with his chain... seems like it changes every week.

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October 18, 2011, 06:17:50 PM
 #11

It depends on the efficiency => hardware cost + running costs per hashrate.
True, but many of the people involved with mining cryptocurrencies already have an arsenal of GPU's just waiting - which have (probably) already been paid for with Bitcoins.

True, but more people have CPUs Smiley But so you can mine with multiple xPUs.
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October 18, 2011, 06:24:10 PM
 #12

It depends on the efficiency => hardware cost + running costs per hashrate.
True, but many of the people involved with mining cryptocurrencies already have an arsenal of GPU's just waiting - which have (probably) already been paid for with Bitcoins.

True, but more people have CPUs Smiley But so you can mine with multiple xPUs.

Right, but that puts SC mining back into the same state as BTC mining.  I (genuinely) thought CH's goal was to be different in those regards.

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October 18, 2011, 06:35:26 PM
 #13

The reason for a GPU version is exactly as viperjbm pointed out, there is a sizeable audience that desires a gpu miner. The goal of SC2's new hash was to make it GPU unfriendly, not GPU impossible. The idea was to level the playing field, so  your average person with a not so spectacular video card could still have a chance at mining. Our preliminary investigations into a GPU miner for SC2 indicate that a GPU version will be somewhat faster than the CPU miner, but nowhere near the gap that GPU miners have over CPU's in BitCoin.

As a side bonus, by releasing a GPU miner, we would be taking away from bitcoins hash power.

And btw, MaGNeT, I cetainly hope you are not implying SC2 uses scrypt, because it does not.

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October 18, 2011, 06:37:07 PM
 #14

Right, but that puts SC mining back into the same state as BTC mining.  I (genuinely) thought CH's goal was to be different in those regards.

If one could mine the same as or better on a CPU but have an option to mine GPU as well even if the efficiency in not ideal.... is that not different?

I suspect that is more for.... educational masturbation, just to see what could be done and open up the options that are out there.  Ideally, it is likely a proof that indeed CPU's are better at mining this than GPU's.... at least for the time being.

I admit I haven't hashed on SC 2, so I'm unaware of what my CPU hashing would be, I was taking it for granted that it would be roughly somewhere the same as LTC/TBX.  Given that, if a  i7-920 can get ~10-15 kh/s @ 200w, and a GTX 470 can get ~100 kh/s @ 205 (from above)...

Those were the numbers I was going on, which in that case makes GPU's obviously better.  But of course I may be in error with some of my numbers.

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October 18, 2011, 08:41:01 PM
 #15

A single decent GPU rig will totally over power the entire SC network.

Yeah... not  Grin
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October 18, 2011, 09:02:31 PM
 #16

Right, but that puts SC mining back into the same state as BTC mining.  I (genuinely) thought CH's goal was to be different in those regards.

If one could mine the same as or better on a CPU but have an option to mine GPU as well even if the efficiency in not ideal.... is that not different?

I suspect that is more for.... educational masturbation, just to see what could be done and open up the options that are out there.  Ideally, it is likely a proof that indeed CPU's are better at mining this than GPU's.... at least for the time being.

I admit I haven't hashed on SC 2, so I'm unaware of what my CPU hashing would be, I was taking it for granted that it would be roughly somewhere the same as LTC/TBX.  Given that, if a  i7-920 can get ~10-15 kh/s @ 200w, and a GTX 470 can get ~100 kh/s @ 205 (from above)...

Those were the numbers I was going on, which in that case makes GPU's obviously better.  But of course I may be in error with some of my numbers.


I am getting 34KH/s with my AMD x6 1090T (overclocked to 3.93ghz), my guess is with an i7-920 you would probably be around that number as well.

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October 18, 2011, 09:22:52 PM
 #17

Right, but that puts SC mining back into the same state as BTC mining.  I (genuinely) thought CH's goal was to be different in those regards.

If one could mine the same as or better on a CPU but have an option to mine GPU as well even if the efficiency in not ideal.... is that not different?

I suspect that is more for.... educational masturbation, just to see what could be done and open up the options that are out there.  Ideally, it is likely a proof that indeed CPU's are better at mining this than GPU's.... at least for the time being.


@Coinhunter


Since I know you are watching this forum. The only reason you are mentioning GPU mining now is that I said THIS about you having GPU mining and you know people are disassembling your code. Funny I post that and just a few hours later, you're "Looking" for an OpenCL miner. LOL

Anyway Magnet, Send me what you have and I will have a couple of Cuda/Open CL experts look at it. I jus PM'd you and yes as you can see it is from an apple.com email address.  Grin

 I am especially interested in the CUDA as I think it will be poetic justice that a "Geoforce Army" take out SC by essentially turning it into a BTC type of difficulty rather quickly.

GPU mining will effectively end CPU mining in Solidcoin and you KNOW IT, even if only one person drops a decent rig on it. A single decent GPU rig will totally over power the entire SC network.

But I highly suspect there has been one person GPU mining all alone.

~BCX~

Thanks! Yeah, the first mail from Apple I ever got Grin
I sent you all the relevant info I have.
Thanks already for the suggestions you made, this is very promising!
I wish I could code like that.  Sad


 
 
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October 18, 2011, 10:38:01 PM
 #18

GTX470 is now at ~170Khash/s and it didn't crash for 3 hours Smiley
Stales are still 15-20% but he'll be working on that.
Will test on my 9800GTX but got to get some sleep now first.

I only received a few PM's from people with an GTX5xx series card. Seems logic, all ATI fanboys over here Tongue

1 person with 2 GTX580 cards received our Alpha and if he gets it up and running (he has to set up Ubuntu first) we hope to get some nice results Smiley

edit:

Please people, stop asking for the CUDA-miner on PM, we won't release it yet, and no, not for 10BTC also.
There will be a public release in about a week, maybe a bit longer (it's all done in spare-time of programmer) but now it's still "work in progress".
I suck in coding so all the kudo's go to him (well, I did a bit of Basic programming in the 80's and 90's Tongue)

Source-code will be released so it can be reviewed or compiled by the ones who don't like it precompiled.
I don't know how to compile it myself but I'm sure some smart guys figure that out.

We still need a name! PM your suggestions Smiley


 
 
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coblee
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Creator of Litecoin. Director of Eng at Coinbase.


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October 18, 2011, 11:10:32 PM
 #19

GTX470 is now at ~170Khash/s and it didn't crash for 3 hours Smiley
Stales are still 15-20% but he'll be working on that.
Will test on my 9800GTX but got to get some sleep now first.

I only received a few PM's from people with an GTX5xx series card. Seems logic, all ATI fanboys over here Tongue

1 person with 2 GTX580 cards received our Alpha and if he gets it up and running (he has to set up Ubuntu first) we hope to get some nice results Smiley

edit:

Please people, stop asking for the CUDA-miner on PM, we won't release it yet, and no, not for 10BTC also.
There will be a public release in about a week, maybe a bit longer (it's all done in spare-time of programmer) but now it's still "work in progress".
I suck in coding so all the kudo's go to him (well, I did a bit of Basic programming in the 80's and 90's Tongue)

Source-code will be released so it can be reviewed or compiled by the ones who don't like it precompiled.
I don't know how to compile it myself but I'm sure some smart guys figure that out.

We still need a name! PM your suggestions Smiley

Is the SC2 algorithm more GPU-friendly than Scrypt? Do you also plan to release a Scrypt version so I can play around with mining Litecoins on a GPU?

Bobnova
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October 19, 2011, 12:48:17 AM
 #20

Oh man, 170kh from a 470 means probably 200-230kh from a gtx580, or right about one kh/watt.
Compare that to a Thuban's 34kh/s from ~170w or my 2600k's 50kh/s from 150w, and you're looking at the end of CPU mining alright.  CUDA GPUs will be three or more times more profitable.  And that's just the alpha miner.

nvidia GPUs have a lot more cache in them than ATI GPUs you see.

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