Author Topic: GPU Miners are here... if rumors are to be believed!  (Read 40514 times)

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Offline phrozenspite

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #95 on: January 06, 2014, 11:18:30 am »
Any update on this?  Will it be released to the public?

Right now. Sorta.
https://bitsharestalk.org/index.php?topic=1921.0
mmc and pts use slighty different versions for their PoW so it would have to be changed further than just editing the host file.
supporting Newmine for a fair Memorycoin
https://bitcointalk.org/index.php?topic=389386.0

Offline Cabon1930

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #94 on: January 03, 2014, 08:10:26 am »
Any update on this?  Will it be released to the public?

Right now. Sorta.
https://bitsharestalk.org/index.php?topic=1921.0

Offline Brekyrself

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #93 on: December 17, 2013, 08:03:41 pm »
Any update on this?  Will it be released to the public?

Offline reorder

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #92 on: December 03, 2013, 09:37:20 am »
Python is significantly slower than C.  Buyer beware.  Personally i would wait for a C implementation than buy a python one.
Sorry, but so what? You do not need ultra performance to send 10-20 packets of data/sec over network :) Most pools are running python, for that matter.

Anyway, sold.

EDIT: sold exclusively.

Conveinently "sold exclusively" immediately when people started asking to buy it from you. I smell a rat.

Unless you can produce, I'm inclined to NOT believe you.

And by lying to you I am trying to achieve what?

Offline lordfirefox

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #91 on: December 03, 2013, 06:33:47 am »
Python is significantly slower than C.  Buyer beware.  Personally i would wait for a C implementation than buy a python one.
Sorry, but so what? You do not need ultra performance to send 10-20 packets of data/sec over network :) Most pools are running python, for that matter.

Anyway, sold.

EDIT: sold exclusively.

Conveinently "sold exclusively" immediately when people started asking to buy it from you. I smell a rat.

Unless you can produce, I'm inclined to NOT believe you.
PTS: Pimu7pvvbCJF9LKsCUw2ZUb2pdHRzLLjBa

Offline KrzysiekT

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #90 on: November 30, 2013, 09:28:18 am »
OK, next week I will start some research how to include GPU libs to miner, so stay tuned. IMHO source of existing miners is pretty understandable, so we could have success, I'm optimist here :-) GPU mining in my calculations should be 4-5 times faster on CPU. Of course miner source will be fully open source.

Of course If somebody do some investigation or have sample code, please share out with your work :)

If you like my idea - please donate :)

PTS: PjzM5LKfzQPre3Huhe8NN5CnbMS75t7bPf
Thanks for donation :-)

Offline WaPTS

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #89 on: November 29, 2013, 12:25:41 am »
A 5870 runs at 420 cpm so a 7950 should run at around 700-800 cpm i guess, which turns a 4 gpu 7950 rig into a 2800-3200 cpm beast beating every "high end" cpu out there easily.

You need 9 32 core c3 amazon instances to get that number, running at roughly 4.5$ per hour, a quad 7950 rig draws around 1.2 KW -> even in sucky Germany lousy 30 Cent per hour. Around the world even below 10.

Come again why this is good? This makes PTS more profitable than LTC and you don't want big farms to switch...this might push out cpus pretty quickly, making it a bit more specialised.
yes I think we should have GPU miner , because service adminer can use the company service miner PTS for free , and it is a big harm for PTS , so we should have GPU miner as noon as posibble

Offline reorder

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #88 on: November 25, 2013, 11:03:58 pm »
This is mostly viable for all those gpu rigs owner although ltc is more profitable than pts right now, even with the gpu miner bonus ^^
Somehow, PTS value increase seems more sustainable than one of LTC :) And supply is running out blazingly fast, a foresighted miner cannot ignore this.

Offline Sy

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #87 on: November 25, 2013, 10:13:04 pm »
But you cannot economically switch your CPU back to LTC mining when you are done with PTS, so it is not just the power draw.

True but you won't have invested into gpus in the first place and i guess your cpu is already present so - win win i guess :D

This is mostly viable for all those gpu rigs owner although ltc is more profitable than pts right now, even with the gpu miner bonus ^^
ptsweb.beeeeer.org Stats

Offline reorder

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #86 on: November 25, 2013, 09:51:45 pm »
My 7950 at 1025/1250 ran at 515 cpm, dual gpu 510 cpm each - power draw about 200-225W per GPU, 50W for the System -> 450-500W for 1000 cpm -> around 2 cpm per W

My i5-3570k at home draws 90W under load (whole system) for 120 cpm, thats 1.33 cpm/w

e5 Xeons are better cpm/w (i think they even beat gpus) but are not realistic to compare since one e5 costs around 1000-2000€ and a 7950 200€ max.

Your i5 is better cpm/w than a GPU which means that those who own i5's can still mine profitably and cover electric costs.   Those who are investing in capital equipment just for mining care about  CPM/w and CPM/capital in which case they will probably opt for the GPU approach.  But for the average casual miner capital costs are '0' which means all that matters is CPM/w.    I believe that an i7 is probably around 1 cpm/w. 

As an individual miner, it is cheaper to mine with your CPU than your GPU if you care about return on electricity.  That is a win in my book!   

1.2 CPM per Watt is worse than 2 CPM per Watt...but yeah, close enough to make cpu mining still a viable option.
But you cannot economically switch your CPU back to LTC mining when you are done with PTS, so it is not just the power draw.

Offline reorder

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #85 on: November 25, 2013, 09:46:42 pm »
Sure thing you can get great results with 128-bit registers and vector rotates and shifts in one cycle. But GPU has just so much more ALUs it kind of compensates. Still, registers are 32-bit and there is no SHLD/SHRD to implement 64-bit ops nicely, so they are pretty much a showstopper.
I would say it differently - cpu compensates (very well) for less parallelism with vector instructions. Do you agree?
32 bit registers doesn't make it automatically slower because they're 32 bit, there's just not enough free registers left for all possible waves. Do you have 100% kernel occupancy on all your kernels? I don't think so. SHLD/SHRD isn't going to change it.
Well, it is about 99% for this kernel, and no register spilling, AMD has tons of registers, for that matter. Just take a look at what compiler generates when you shift or rotate ulong..

Offline iruu

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #84 on: November 25, 2013, 09:36:32 pm »
Sure thing you can get great results with 128-bit registers and vector rotates and shifts in one cycle. But GPU has just so much more ALUs it kind of compensates. Still, registers are 32-bit and there is no SHLD/SHRD to implement 64-bit ops nicely, so they are pretty much a showstopper.
I would say it differently - cpu compensates (VERY well) for less parallelism with vector instructions. Do you agree?
32 bit registers don't make it automatically slower because they're 32 bit, there's just not enough free registers left for all possible waves. Do you have 100% kernel occupancy on all your kernels? I don't think so. SHLD/SHRD isn't going to change it.
« Last Edit: November 25, 2013, 09:39:23 pm by iruu »

Offline bytemaster

Re: GPU Miners are here... if rumors are to be believed!
« Reply #83 on: November 25, 2013, 09:24:09 pm »
My 7950 at 1025/1250 ran at 515 cpm, dual gpu 510 cpm each - power draw about 200-225W per GPU, 50W for the System -> 450-500W for 1000 cpm -> around 2 cpm per W

My i5-3570k at home draws 90W under load (whole system) for 120 cpm, thats 1.33 cpm/w

e5 Xeons are better cpm/w (i think they even beat gpus) but are not realistic to compare since one e5 costs around 1000-2000€ and a 7950 200€ max.

Your i5 is better cpm/w than a GPU which means that those who own i5's can still mine profitably and cover electric costs.   Those who are investing in capital equipment just for mining care about  CPM/w and CPM/capital in which case they will probably opt for the GPU approach.  But for the average casual miner capital costs are '0' which means all that matters is CPM/w.    I believe that an i7 is probably around 1 cpm/w. 

As an individual miner, it is cheaper to mine with your CPU than your GPU if you care about return on electricity.  That is a win in my book!   

1.2 CPM per Watt is worse than 2 CPM per Watt...but yeah, close enough to make cpu mining still a viable option.

Right.. what was I thinking...  ???
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Offline reorder

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #82 on: November 25, 2013, 09:22:14 pm »
@reorder
http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/fast-sha512-implementations-ia-processors-paper.html

8.59cycles/bytes for sha512 on large data buffer. It's ridiculous.

Sure thing you can get great results with 128-bit registers and vector rotates and shifts in one cycle. But GPU has just so much more ALUs it kind of compensates. Still, registers are 32-bit and there is no SHLD/SHRD to implement 64-bit ops nicely, so they are pretty much a showstopper.

Offline cholik

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Re: GPU Miners are here... if rumors are to be believed!
« Reply #81 on: November 25, 2013, 09:17:56 pm »
For those who are interested and dont know bout it http://openwall.info/wiki/john/OpenCL-SHA-512