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Author Topic: ATTN Litecoin GPU Miners - Scrypt support for cgminer  (Read 175795 times)
nitrox
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July 29, 2012, 04:58:19 PM
 #541


Use cgminer and these settings
--scrypt -I 19 --shaders 1792 --thread-concurrency 8960 -g 1
Should get 500+ kh/s
also try --thread-concurrency of 17920, may be a little faster
for the 7xxx series you must always use -g 1 to achieve high intensities

a lot of reject A:6 R:85 ~600kH/s

i try a low intensity 15 result :  A:30 R:73 ~370kH/s

still no good result

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July 29, 2012, 05:00:55 PM
 #542

Did you run
export GPU_MAX_ALLOC_PERCENT=100
before running cgminer under Ubuntu?
What are you stock clock rates? Maybe try experimenting there a little with engine and memory clocks upwards and downwards, the hash rates can vary quite a bit depending on the ratio of engine to memory

export GPU_MAX_ALLOC_PERCENT=100 - YES I RUN IT

GPU : 1045Mhz (default : 900MHz)
RAM : 1450MHz (default : 1250MHz)

also try
export GPU_USE_SYNC_OBJECTS=1
with ALLOC in script which runs cgminer

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nitrox
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July 29, 2012, 05:05:09 PM
 #543

also try
export GPU_USE_SYNC_OBJECTS=1
with ALLOC in script which runs cgminer

cd cgminer
rm *.bin
export DISPLAY=:0
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100
./cgminer ................

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July 29, 2012, 05:07:05 PM
 #544

also try
export GPU_USE_SYNC_OBJECTS=1
with ALLOC in script which runs cgminer

cd cgminer
rm *.bin
export DISPLAY=:0
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100
./cgminer ................

yes

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nitrox
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July 29, 2012, 05:17:06 PM
Last edit: July 29, 2012, 05:32:12 PM by nitrox
 #545

on HD7950
with cgminer 2.6 on windows 7 x64 BTC hashe rate is : ~535MHs
whit cgminer 2.6 on XUBUBTU 12.4 x46 BTC hashe rate is : ~495MHs

windows beat up linux in my case whit 40MHs on BTC digging

with cgminer 2.6 on windows 7 x64 LTC hashe rate is : ~250kHs  
whit cgminer 2.6 on XUBUBTU 12.4 x46 LTC hashe rate is : ~254kHs

no so big difference for LTC

edit:
considering that result i think windows is better decision in my case
edit:
this is with 12.4 driver

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July 29, 2012, 05:23:46 PM
 #546

on HD7950
with cgminer 2.6 on windows 7 x64 BTC hashe rate is : ~535MHs
whit cgminer 2.6 on XUBUBTU 12.4 x46 BTC hashe rate is : ~495MHs

windows beat up linux in my case whit 40MHs on BTC digging

with cgminer 2.6 on windows 7 x64 LTC hashe rate is : ~250kHs 
whit cgminer 2.6 on XUBUBTU 12.4 x46 LTC hashe rate is : ~254kHs


try with driver 12.6

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July 29, 2012, 05:55:40 PM
 #547

on HD7950 instal driver 12.6
with cgminer 2.6 on windows 7 x64 BTC hashe rate is : ~535MHs
whit cgminer 2.6 on XUBUBTU 12.4 x64 BTC hashe rate is : ~499MHs

windows beat up linux in my case whit 40MHs on BTC digging

with cgminer 2.6 on windows 7 x64 LTC hashe rate is : ~250kHs
whit cgminer 2.6 on XUBUBTU 12.4 x64 LTC hashe rate is : ~300kHs

with 12.6 is a little better,
but is not so good compare 6950 on LTC do ~405kH/s

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July 29, 2012, 06:01:55 PM
 #548

also try
export GPU_USE_SYNC_OBJECTS=1
with ALLOC in script which runs cgminer

cd cgminer
rm *.bin
export DISPLAY=:0
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100
./cgminer ................

with this params try more intensity.. to me this params unlock to incrase intensity and thread-concurrency (with TC not need to use shaders)

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nitrox
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July 29, 2012, 06:19:56 PM
 #549

when increasing intensity start rejecting ...  Embarrassed

penek
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July 29, 2012, 06:27:31 PM
 #550

when increasing intensity start rejecting ...  Embarrassed

I'm at a loss

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July 29, 2012, 06:33:55 PM
 #551

when increasing intensity start rejecting ...  Embarrassed

I'm at a loss

I believe nitrox is stating that when you increase the intensity, cgminer is likely to have more rejected shares.
nitrox
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July 29, 2012, 06:44:15 PM
 #552

I believe nitrox is stating that when you increase the intensity, cgminer is likely to have more rejected shares.

this is what i meant,
sorry for my bad english i use google translator.

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July 29, 2012, 06:51:15 PM
 #553

I believe nitrox is stating that when you increase the intensity, cgminer is likely to have more rejected shares.

this is what i meant,
sorry for my bad english i use google translator.

No biggie, glad to help.
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July 29, 2012, 07:53:20 PM
 #554

Merged into BFGMiner (minus the sick bug)

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July 29, 2012, 08:13:29 PM
 #555


A merge and a fix from a guy who is known for is loathing of LTC? Really!

While reading what I wrote, use the most friendliest and relaxing voice in your head.
BTW, Things in BTC bubble universes are getting ugly....
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July 29, 2012, 08:17:50 PM
 #556


A merge and a fix from a guy who is known for is loathing of LTC? Really!
I didn't merge it for Litecoin. I'm pretty sure Con loathes Litecoin too, and only did it for the bounty.

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July 29, 2012, 08:40:09 PM
 #557


A merge and a fix from a guy who is known for is loathing of LTC? Really!
I didn't merge it for Litecoin. I'm pretty sure Con loathes Litecoin too, and only did it for the bounty.

Listen asshat, I do not see him trolling the alternate cryptocurrencies forum like you do. Go whine about your insecurities somewhere else.

While reading what I wrote, use the most friendliest and relaxing voice in your head.
BTW, Things in BTC bubble universes are getting ugly....
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July 29, 2012, 11:37:36 PM
 #558

Help requested.

I have three 5850's

Here is my command:
Code:
export GPU_MAX_ALLOC_PERCENT=100
export GPU_USE_SYNC_OBJECTS=1
  cgminer \
    -o localhost:9332 -u ## -p ## \
    --scrypt \
    --intensity 13 \
    --shaders 1440

Here is what happens:

Code:

 [2012-07-29 19:35:36] Started cgminer 2.6.0


  #pragma unroll
          ^

/tmp/OCLBW3cii.cl(663): warning: unrecognized #pragma
  #pragma unroll
          ^

/tmp/OCLBW3cii.cl(677): warning: unrecognized #pragma
  #pragma unroll
          ^

/tmp/OCLBW3cii.cl(636): warning: variable "ySIZE" was declared but never
          referenced
        const uint ySIZE = (1024/LOOKUP_GAP+(1024%LOOKUP_GAP>0));
                   ^

/tmp/OCLBW3cii.cl(707): warning: unrecognized #pragma
  #pragma unroll
          ^

12 errors detected in the compilation of "/tmp/OCLBW3cii.cl".

 [2012-07-29 19:35:38] Failed to init GPU thread 0, disabling device 0
 [2012-07-29 19:35:38] Restarting the GPU from the menu will not fix this.
 [2012-07-29 19:35:38] Try restarting cgminer.
Press enter to continue:

-ck
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July 29, 2012, 11:39:25 PM
 #559

Update your sdk, and note that cgminer 2.6.0 is broken

Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
2% Fee Solo mining at solo.ckpool.org
-ck
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July 29, 2012, 11:43:36 PM
 #560

Does this scrypt varient of cgminer support -c cgminer.conf for multiple pool failover?

I'm away from my rig or I'd experiment and find out myself.

Thx. 

PS Con, you are the best!


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