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Author Topic: ATTN Litecoin GPU Miners - Scrypt support for cgminer  (Read 169340 times)
PinkBatman
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July 16, 2012, 10:58:15 PM
 #41

I'd be willing to throw some coin at the project. I think if there was an address lots of people would send some change that way (rather than pledging 5-10 coins at a time).
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smoothie
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July 16, 2012, 11:05:54 PM
 #42

I've had more than a "bit" of a crack at doing this since the bounty was started and I've gotta say it's far from trivial. I grossly underestimated how much effort it would take and am currently stumped by various failures with my attempts so far.

What are you struggling with specifically?

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     ²▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓╩    
        ▀▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▀       
           ²▀▀▓▓▓▓▓▓▓▓▓▓▓▓▀▀`          
                   ²²²                 
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. ★☆ WWW.LEALANA.COM        My PGP fingerprint is A764D833.        SMOOTHIE'S HEALTH AND FITNESS JOURNAL          History of Monero development Visualization ★☆ .
LEALANA  PHYSICAL MONERO COINS 999 FINE SILVER.
 
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July 16, 2012, 11:13:38 PM
 #43

I've tried 2 approaches to the opencl kernel. First I ported reaper's kernel which should have been the least work but it kept returning garbage responses. Secondly I ported the entire scrypt c code to opencl code and had the same thing happen. Something I'm doing wrong in passing parameters to it or something but I've audited them hundreds of times and can't see wtf I'm doing wrong. Code is NOT public yet while it's a mess and in flux and the bounty is being collected.

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Aseras
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July 17, 2012, 12:16:53 AM
 #44

sent my pledge

Quote
Date: 7/16/2012 20:13
To: 148KkS2vgVi4VzUi4JcKzM2PMaMVPi3nnq
Debit: -5.00 BTC
Net amount: -5.00 BTC
Transaction ID: 86026c81143ad03cb5ad90b210db4133a38b5fef49e3d0d3d14778c7b60fbbf5
jjiimm_64
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July 17, 2012, 12:35:39 AM
 #45

sent my pledge

Quote
Date: 7/16/2012 20:13
To: 148KkS2vgVi4VzUi4JcKzM2PMaMVPi3nnq
Debit: -5.00 BTC
Net amount: -5.00 BTC
Transaction ID: 86026c81143ad03cb5ad90b210db4133a38b5fef49e3d0d3d14778c7b60fbbf5

where did you get that bitcoin address from?

1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
smoothie
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July 17, 2012, 12:45:31 AM
 #46

sent my pledge

Quote
Date: 7/16/2012 20:13
To: 148KkS2vgVi4VzUi4JcKzM2PMaMVPi3nnq
Debit: -5.00 BTC
Net amount: -5.00 BTC
Transaction ID: 86026c81143ad03cb5ad90b210db4133a38b5fef49e3d0d3d14778c7b60fbbf5

where did you get that bitcoin address from?

The internetS

███████████████████████████████████████

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        ▀▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▀       
           ²▀▀▓▓▓▓▓▓▓▓▓▓▓▓▀▀`          
                   ²²²                 
███████████████████████████████████████

. ★☆ WWW.LEALANA.COM        My PGP fingerprint is A764D833.        SMOOTHIE'S HEALTH AND FITNESS JOURNAL          History of Monero development Visualization ★☆ .
LEALANA  PHYSICAL MONERO COINS 999 FINE SILVER.
 
Aseras
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July 17, 2012, 01:11:33 AM
 #47

sent my pledge

Quote
Date: 7/16/2012 20:13
To: 148KkS2vgVi4VzUi4JcKzM2PMaMVPi3nnq
Debit: -5.00 BTC
Net amount: -5.00 BTC
Transaction ID: 86026c81143ad03cb5ad90b210db4133a38b5fef49e3d0d3d14778c7b60fbbf5

where did you get that bitcoin address from?

Look up one post

https://bitcointalk.org/index.php?topic=92887.msg1035160#msg1035160

Read sig.
tacotime
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July 17, 2012, 06:42:20 AM
 #48

Whoever the coder is, they should have a look at the OCL programming guide for Southern Islands (7xxx):

http://developer.amd.com/sdks/AMDAPPSDK/assets/AMD_Accelerated_Parallel_Processing_OpenCL_Programming_Guide.pdf

Code:
XMR: 44GBHzv6ZyQdJkjqZje6KLZ3xSyN1hBSFAnLP6EAqJtCRVzMzZmeXTC2AHKDS9aEDTRKmo6a6o9r9j86pYfhCWDkKjbtcns
kano
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Linux since 1997 RedHat 4


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July 17, 2012, 06:53:08 AM
 #49

Whoever the coder is, they should have a look at the OCL programming guide for Southern Islands (7xxx):

http://developer.amd.com/sdks/AMDAPPSDK/assets/AMD_Accelerated_Parallel_Processing_OpenCL_Programming_Guide.pdf
Whoever you are should realise how useless that comment is ...

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July 17, 2012, 07:09:51 AM
 #50

Whoever you are should realise how useless that comment is ...

?  The OCL code in reaper is pretty poorly optimized for the GCN architecture, that is well known??  Cayman XT has about 25% less memory read bandwidth than Tahiti XT, I would expect that Tahiti XT should perform faster than Cayman XT.

Code:
XMR: 44GBHzv6ZyQdJkjqZje6KLZ3xSyN1hBSFAnLP6EAqJtCRVzMzZmeXTC2AHKDS9aEDTRKmo6a6o9r9j86pYfhCWDkKjbtcns
NASDAQEnema
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July 17, 2012, 12:28:19 PM
 #51

we can't even get reaper to run easily on 7xxxx (7970 for example). maybe the best way would be to convert various components to libraries.

libminer for the cpu, gpu, fpga, asic protocols
libwallet for the querying of info
libnotary for the signing, confirming rules
libtoken for the network difficulty, block reward rules

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July 17, 2012, 02:49:16 PM
 #52

I pledge 2 BTC towards this bounty.

*edit*  <sent>

ID: c9de54cda8897b7facfd7e6c899bc8cef3c844be1837a49ebc4b63e85078886d
kmsalex
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July 17, 2012, 03:39:45 PM
 #53

* tiny mouse voice

I like to mine Litecoin on my CPU...
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July 17, 2012, 04:48:54 PM
 #54

sorry, back from holiday - internet was bad, will read through the thread in morning
1RnULoG3fTcaHuXhnpDFTnuCTiNHLw1SM for those waiting for an addy
cheers
Graet

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July 17, 2012, 06:51:28 PM
 #55

I pledge 3 BTC towards this bounty (going to ckolivas?!).  =D

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July 17, 2012, 07:25:58 PM
 #56

Sent a little bit
smoothie
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July 17, 2012, 09:27:21 PM
 #57

What's the total pledged so far?

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        ,p████████████████████N,       
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           ▐▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▌          
    ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓─  
     ²▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓╩    
        ▀▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▀       
           ²▀▀▓▓▓▓▓▓▓▓▓▓▓▓▀▀`          
                   ²²²                 
███████████████████████████████████████

. ★☆ WWW.LEALANA.COM        My PGP fingerprint is A764D833.        SMOOTHIE'S HEALTH AND FITNESS JOURNAL          History of Monero development Visualization ★☆ .
LEALANA  PHYSICAL MONERO COINS 999 FINE SILVER.
 
Tittiez
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July 17, 2012, 09:44:12 PM
 #58

What's the total pledged so far?

I think its somewhere around 80, maybe 85. I'm too lazy to count. With BTC/USD going up I think it would be safe to say its filled anyway? Or are we going to 100 regardless of usd price..?
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July 17, 2012, 11:03:17 PM
 #59

sorry, back from holiday - internet was bad, will read through the thread in morning
1RnULoG3fTcaHuXhnpDFTnuCTiNHLw1SM for those waiting for an addy
cheers
Graet

Pledge send: ac4072287619a3a7ba4592b80e4929f29b4e15d988dc1a7fd0aa3bb1f2e4fd5c.

I trust it will get to the person it is suppose to get to.

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July 17, 2012, 11:05:59 PM
 #60

Just sent my 5 BTC to the address given by Graet (from the address in my sig).

Transaction ID = 8dd2ba5ba7368d85de7bc53fc3e5647d6b86fba8e98828715ac821d6ccc2f807

There's 13.35 BTC in the wallet so far, and 25 BTC have been sent direct to ckolivas so far (I think).

 
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