Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs

[jasinlee]

what are your core/memory clocks?

For bitcoin I was using 165/775.

Litecoin requires memory speeds to be at or above the core speeds

How would you suggest I tweak this to ltc? Ive been at it for a few days now and the best I have been able to get per card is 400kh but when I use the cgeasy to make 1 function I end up with 700kh on that one card.

[jasinlee]

Code:

./cgminer --scrypt -o http://litecoinpool.org:9332 -u username -p password --thread-concurrency 5632 -I 18 -g 1 -w 64 --auto-fan

I was thinking of trying something like...

Code:

./cgminer --scrypt -o http://litecoinpool.org:9332 -u username -p password --thread-concurrency 5632 -I 18 -g 1 -w 64 --auto-fan  --auto-gpu --gpu-engine 850,850,850,850 --gpu-memclock 1300,1300,1300,1300 --gpu-vddc 1.10,1.10 --shaders 3200,3200,3200,3200

I think I might be off on the amounts though. And should I be doubling these due to the 2 gpus on each card?

[tacotime]

try -w 256 and --thread-concurrency 8000,8000,8000,8000

[jasinlee]

This is in the .sh file now.

Code:

./cgminer --scrypt -g 1 --shaders 3200 -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 --thread-concurrency 8000,8000,8000,8000 -I 18 -w 256 --auto-fan

I updated the file and this is what I got in return.

 [2012-10-14 21:17:42] Failed to init GPU thread 0, disabling device 0
 [2012-10-14 21:17:42] Restarting the GPU from the menu will not fix this.
 [2012-10-14 21:17:42] Try restarting cgminer.

[tacotime]

remove --shaders

[jasinlee]

remove --shaders

Same error again, tried a few different -I Tried 15-18 all same issue.

[tacotime]

remove --shaders

Same error again, tried a few different -I Tried 15-18 all same issue.

Weird,
try

Code:

./cgminer --scrypt -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 -g 1 --thread-concurrency 8000 -I 18 -w 256 --auto-fan

edit:
for the mem/core speeds as you suggested:

Code:

./cgminer --scrypt -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 -g 1 --thread-concurrency 8000 -I 18 -w 256 --auto-fan --gpu-engine 750,750,750,750 --gpu-memclock 1300,1300,1300,1300

[jasinlee]

Current code

Code:

./cgminer --scrypt -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 -g 1 --thread-concurrency 8000 -I 18 -w 256 --auto-fan

I Assume this probably has to do something with it.

Code:

 [2012-10-14 21:35:49] Failed to init GPU thread 0, disabling device 0
 [2012-10-14 21:35:49] Restarting the GPU from the menu will not fix this.
 [2012-10-14 21:35:49] Try restarting cgminer.
Press enter to continue:

 [2012-10-14 21:36:09] Your scrypt settings come to 524288000
 [2012-10-14 21:36:09] Error -61: clCreateBuffer (padbuffer8), decrease CT or i
ncrease LG
 [2012-10-14 21:36:09] Failed to init GPU thread 7, disabling device 7

[tacotime]

Current code

Code:

./cgminer --scrypt -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 -g 1 --thread-concurrency 8000 -I 18 -w 256 --auto-fan

I Assume this probably has to do something with it.

Code:

 [2012-10-14 21:35:49] Failed to init GPU thread 0, disabling device 0
 [2012-10-14 21:35:49] Restarting the GPU from the menu will not fix this.
 [2012-10-14 21:35:49] Try restarting cgminer.
Press enter to continue:

 [2012-10-14 21:36:09] Your scrypt settings come to 524288000
 [2012-10-14 21:36:09] Error -61: clCreateBuffer (padbuffer8), decrease CT or i
ncrease LG
 [2012-10-14 21:36:09] Failed to init GPU thread 7, disabling device 7

Oh,

use --thread-concurrency 7168 or 5632.  that's cgminer sucking because of ocl memory consumption problems.

[jasinlee]

Code:

./cgminer --scrypt -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 -g 1 --thread-concurrency 7168 -I 18 -w 256 --auto-fan

and

Code:

./cgminer --scrypt -o http://ltc.kattare.com:9332 -u jasinlee.1 -p 1 -g 1 --thread-concurrency 5632 -I 18 -w 256 --auto-fan

same error but now it says

Your scrypt settings come to 369098752 > It does not seem to like that amount.


Should I try another thread concurrency or other ideas?

[tacotime]

that's really weird.  try reaper with thread_concurrency 5632 and aggression 18.

[jasinlee]

Could you add more details to the OP to run reaper in case cgminer isnt working, I am kinda feeling my way right now but cant get it to run yet.

[jasinlee]

Going to figure out which setup I had that made it work even halfass, maybe you can point me at what to tweak to get it working properly.

[aqrulesms]

What if I have a 5850 and a 7970 in one rig? How can I have CGMiner only mine the 5xxx and Reaper only mine the 7970?

[luffy]

What if I have a 5850 and a 7970 in one rig? How can I have CGMiner only mine the 5xxx and Reaper only mine the 7970?

check in cgminer report window what card shows as GPU0 and GPU1. then at command line of cgminer add the key "-d 0"
or "-d 1" for the 5xxx. then in file reaper.conf of reaper add "device 0" or "device 1",the other one for 7970.

[Cablez]

I have looked around and cannot seem to find out why I cannot get reaper to connect to pool-x.eu.  What do people have for that one?

[AForceNinja]

i get to this point and reaper.exe crashes. Any ideas?

Code:

Using all devices
         0      tahiti
Compiling kernel...this could take up to 2 minutes.
Binary size: 1417308 bytes
Program built from source.
LTC buuffer size: 640MB
          1          Intel .... i7 cpu.......
Compiling kernel...this could take up to 2 minutes.

UPDATE...I got it to work but now it seems to be using 100% of the CPU along with it and is making the computer impossible to use

im using a 7950 with the newest drivers and the settings layed out in the first post.

Mining at about 500khash/s at 1275mhz core 1600mem

[meebs]

I have looked around and cannot seem to find out why I cannot get reaper to connect to pool-x.eu.  What do people have for that one?

did you make sure to NOT include the http:// or www.?

Did you verify the correct port number has been inputted?

Did you verify the correct EXACT spelling of the username/worker?

Did you verify the correct exact spelling of the worker password?

[Cablez]

i get to this point and reaper.exe crashes. Any ideas?

Code:

Using all devices
         0      tahiti
Compiling kernel...this could take up to 2 minutes.
Binary size: 1417308 bytes
Program built from source.
LTC buuffer size: 640MB
          1          Intel .... i7 cpu.......
Compiling kernel...this could take up to 2 minutes.

UPDATE...I got it to work but now it seems to be using 100% of the CPU along with it and is making the computer impossible to use

im using a 7950 with the newest drivers and the settings layed out in the first post.

Mining at about 500khash/s at 1275mhz core 1600mem

You are mining on your CPU which is why you have 100% usage. To remove that from mining just add 'device 0' to your reaper.conf file right before 'mine litecoin'.

[Cablez]

did you make sure to NOT include the http:// or www.?

Did you verify the correct port number has been inputted?

Did you verify the correct EXACT spelling of the username/worker?

Did you verify the correct exact spelling of the worker password?

This is from my litecoin.conf:

host mine.pool-x.eu
port 8080
user user
pass pass

The user and pass data has been changed but I have confirmed they are correct.

I always get that stupid curl error when it can't connect. The funny thing is it works fine with ozcoin and coinotron just not pool-x.