LTC mining with Reaper on a 7970

[muqali]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

[1714031585]

1714031585

[1714031585]

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[Vorksholk]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

[Vorksholk]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

i fixed the cpu problem in reaper. i have 2x 6950 and im thinking which miner i should use? cgminer or reaper?

what is that "--scrypt option" in cgminer?

thanks for helping a noob 

Try using cgminer, it's more stable. The --scrypt option in cgminer is to tell it you want to mine litecoins instead of bitcoins. You also have to specify the shader count of your card. If you have trouble getting cgminer working, post your config and we can help you, or you can use cgEasy.

[muqali]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

[Vorksholk]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

[muqali]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

[Vorksholk]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

Try intensity 18.

[Greedi]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

Try intensity 18.

a 7970 can't go above 12

[muqali]

I put 18, the kh went up to around 400, but I had Q:38 A:8

[Greedi]

I put 18, the kh went up to around 400, but I had Q:38 A:8

if you go above 12, its will just be stalen

you have to tweak it pretty much, i got ~700 kh/s out of my bro's 7970 with -I 12, but with som good tweaks

[Vorksholk]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

Try intensity 18.

a 7970 can't go above 12

Ahh, thought that was only with reaper

[Greedi]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

Try intensity 18.

a 7970 can't go above 12

Ahh, thought that was only with reaper

sadly no.

[Vorksholk]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

Try intensity 18.

a 7970 can't go above 12

Ahh, thought that was only with reaper

sadly no.

Do we have any idea why it can't go above 12?

[Greedi]

i have allways 100% usage on cpu. how i can fix that? 

Use latest cgminer 2.6.1  and run with --scrypt option

I get about 8kh/s on my 7970 with cgminer and --scrypt...

Did you set your shader count?

Once I set shaders, -g and intensity I was up around 260kh/s.

What intensity were you using?

12

Try intensity 18.

a 7970 can't go above 12

Ahh, thought that was only with reaper

sadly no.

Do we have any idea why it can't go above 12?

Well, i'm not sure, så don't hang me op on it, but its something with the hardware, its a very good hardware, and can do very much, and if you set higher then 12, it works to fast, since the privhash-stale thing that would be my guess, but if you tweak it right, it can do over ~700 kh/s, but its not cgminer/reaper toy have to tweak, or yes it is, but more like the gpu you have to tweak right

[muqali]

I put 18, the kh went up to around 400, but I had Q:38 A:8

if you go above 12, its will just be stalen

you have to tweak it pretty much, i got ~700 kh/s out of my bro's 7970 with -I 12, but with som good tweaks

Share the tweaks, for the good of the cryptocurrency of course.

[tacotime]

I put 18, the kh went up to around 400, but I had Q:38 A:8

if you go above 12, its will just be stalen

you have to tweak it pretty much, i got ~700 kh/s out of my bro's 7970 with -I 12, but with som good tweaks

Share the tweaks, for the good of the cryptocurrency of course.

Reaper config:

Code:

host ltcmine.ru
port 8344
user xxx
pass xxx


protocol litecoin

worksize 256
vectors 1
aggression 20
threads_per_gpu 1
sharethreads 32
lookup_gap 2
gpu_thread_concurrency 24576

Should be able to get 700+ kh/s.  I have a 7950 running this right now and I'm getting 550 kh/s.

[Tomatocage]

these settings get 600kh/s+, which is the estimated kh/s rate for one of these cards by their memory bandwidth:

worksize 256
aggression 13
threads_per_gpu 5
sharethreads 18
lookup_gap 2
gpu_thread_concurrency 10240

you need the latest sdk and 12.6+ ati drivers (tried with 12.6 and it works well, not sure about 12.7 but those are probably okay too)

Any time I go above 8192 I get an error saying the buffer is too large or some shit.  How are you guys getting gpu_thread_concurrency above that?

[Greedi]

Use cgminer peeps?

set --shader and go after that instead, that was what i started with on DiCE1904 7970, and he is now getting +700 kh/s on his

[meebs]

Use cgminer peeps?

set --shader and go after that instead, that was what i started with on DiCE1904 7970, and he is now getting +700 kh/s on his

Any other suggestions on settings other then that? CG miner always tends to perform (for me) about 10-15% lower then reaper can get. I have tried both the --shader and --thread-concurrency routes.

[Liquid]

I find reaper to be the best doin 760Kh/s on my 5970  

protocol litecoin

worksize 256
aggression 16
threads_per_gpu 1
sharethreads 10
lookup_gap 2
gpu_thread_concurrency 5632