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

[Grover]

root@xxxx:/home/xxxx/Desktop/reaper/build# ./reaper
\|||||||||||||||||||||/
-  Reaper v13 64-bit  -
-       BETA 4        -
-   coded by mtrlt    -
/|||||||||||||||||||||\

/----------------------------------------------\
| Please donate to support Reaper development! |
|----------------------------------------------|
|   SLC: sdJMdNAEaJMVaxPFxaWibty9bec6Y4ubJK    |
|   BTC: 1DjMcD5oQUap7kXrwa9J8S5esMryUs777o    |
|   LTC: LZ5xurMLgdEzeuXuJvYB4DwyprCC1asfmp    |
\----------------------------------------------/


2013-03-17 16:37:00 Error: Config file reaper.conf not found.
root@xxxx:/home/xxxx/Desktop/reaper/build#

This is with litecoin.conf and reaper.conf in the same directory? (you can see both when you run 'ls'?)

No for the first.

I wised up and copied reaper from build to the directory with the litecoin.conf and reaper.conf files, restarted from root terminal and I get this.

Warning: unknown property "9332" in configuration file.
Warning: unknown property "xxxx.1" in configuration file. // username
Warning: unknown property "xxxx" in configuration file. // pass
Warning: unknown property "litecoin" in configuration file.
Warning: unknown property "256" in configuration file.
Warning: unknown property "1" in configuration file.
Warning: unknown property "20" in configuration file.
Warning: unknown property "1" in configuration file.
Warning: unknown property "32" in configuration file.
Warning: unknown property "2" in configuration file.
Warning: unknown property "21712" in configuration file.
Floating point exception
root@xxxx:/home/xxxx/Desktop/reaper#

Code:

host ltc.kattare.comport 9332
user xxxx.1
pass xxxx

protocol litecoin

worksize 256
vectors 1
aggression 20
threads_per_gpu 1
sharethreads 32
lookup_gap 2
gpu_thread_concurrency 21712

Code:

kernel reaper.cl
save_binaries yes
enable_graceful_shutdown yes
long_polling yes
platform 0
cpu_mining_threads 0
device 0

mine litecoin

ADDED

Got IT!  I copied the host line from the pool and he had the port at the end of the line so I left it as is.

I entered it as port [xxxx] and it works.

The rest is a pool issue with getting work.

[1714054660]

1714054660

[tacotime]

It looks like you swapped the contents of reaper.conf and litecoin.conf, if I had to guess.

Be sure to move the litecoin-reaper.cl file over if you want to mine litecoin, too.

[efx]

Looks like a good guess.

[tacotime]

Got IT!  I copied the host line from the pool and he had the port at the end of the line so I left it as is.

I entered it as port [xxxx] and it works.

The rest is a pool issue with getting work.

Yeah, I missed that it was malformed there.  Hopefully now it will work!

[Grover]

It looks like you swapped the contents of reaper.conf and litecoin.conf, if I had to guess.

Be sure to move the litecoin-reaper.cl file over if you want to mine litecoin, too.

I copied the host line from the pool and he had the port at the end of the line so I left it as is.

I entered it as port [xxxx] and it works.

The rest is a pool issue with getting work.

Thanks for your help.

[matauc12]

13.3?

I can't find that one yet, I only see various 13.2 betas. Did it come from the main website?

I dont know, in the driver finder selecting windows 8 64bit (perhaps not for other versions yet?). Its posted 3/15/13.

[efx]

Hm.

Yeah, I'm still on 7 x64.  

[matauc12]

Hm.

Yeah, I'm still on 7 x64.  

Apparently its all the same and it shows so here
http://support.amd.com/us/gpudownload/windows/Pages/radeonaiw_vista64.aspx

[Grover]

When reporting hash rates do you use what the terminal states or what the pool states?

My terminal states ~565Kh/s
Pool states about 50% of that.

[tacotime]

When reporting hash rates do you use what the terminal states or what the pool states?

My terminal states ~565Kh/s
Pool states about 50% of that.

What the terminal states and by the number of shares accepted by the pool.  The pool is subject to variance and usually averages performance by the last 5-10 minutes, so it will appear low for the first 5-10 min.

[efx]

Hm.

Yeah, I'm still on 7 x64.  

Apparently its all the same and it shows so here
http://support.amd.com/us/gpudownload/windows/Pages/radeonaiw_vista64.aspx

Ohhh I was being stupid and assuming the ' Top Support Articles ' would have the newest beta driver.  Thanks!

[Grover]

When reporting hash rates do you use what the terminal states or what the pool states?

My terminal states ~565Kh/s
Pool states about 50% of that.

What the terminal states and by the number of shares accepted by the pool.  The pool is subject to variance and usually averages performance by the last 5-10 minutes, so it will appear low for the first 5-10 min.

Thanks.

Now I just have to get all the other GPU's going and I'm off to living in a noisy place.

[Grover]

TacoTime, you're AWESOME!

Thanks for the guide and thanks for all the help.

This is a lot of fun, even with just one GPU going atm, this is fun.

[tacotime]

No problem. C:

[nitrogenetics]

do you know if he was using 1 thread or 2?
thanks for that list I hope a find a magic one, nuts that 800/790 gives him that much!

16 gigs of system ram for him, wonder if that has anything to do with it... I currently only have 4gb in both 7970 systems until I can order more... I wasn't even able to hash using 1gb of ram.

I get significantly better performance using 2 threads, but then I'm locked to intensity 13 (see my post on cgminer's official thread).

It would be interesting to compare vram timings on boards behaving differently, but I'm not aware of any tool that reads them out from the vga bios.

If I have time I'll try to move the vga in an older system and see if I can get the same hash rates on lower end hardware.

[efx]

^ very interesting idea.

That is often the main difference between an unlocked 6950 and a 6970 (besides possible binning), for instance.


I wonder what adjustments could be made if it was exposed .... I've never found a way to read them.

[-ck]

For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:

Code:

setx GPU_MAX_ALLOC_PERCENT 100

[Rjb82]

For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:

Code:

setx GPU_MAX_ALLOC_PERCENT 100

Saw this in the other thread, tried, works on my 7950.

Previous high with Cgminer was 550kh/s on 2.11.3 (8192 concurrency, 1k/1750 @ 13agg)
Now can hit 620kh/s (same as reaper) with this, (16384 concurrency, 1k/1750 @ 19agg)

No Hw errors.

[tacotime]

For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:

Code:

setx GPU_MAX_ALLOC_PERCENT 100

Okay, I will try this and then add the shell command to GUIminer if it works okay.

[ThickAsThieves]

I'm running two 7950s in a an AsRock 870 Extreme 3 (older version). I have two issue that are probably related.

When I try to mine litecoin, I get an extremely high hashrate, but 0:0 for shares accepted:stale. The GPU is at like 30% usage.

I also have two 2GB sticks of RAM, but the system only recognizes 2GB total.

I am in Windows 7 64bit using Reaper and CGMiner. The only other odd thing that could be affecting things is that I'm using ESATA as a system drive, but I doubt that;s the issue...

Please help, I have more card to add too!