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Topic: Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs - page 23. (Read 624200 times)

full member
Activity: 137
Merit: 100
I was thinking Stay Puft, but Gozer said Grover
Do you have a BTC address you use for small donations?

This one is fine
17bmYcP6Vio6c1gnyPsaDSv4B11SLe81Ab

C:

Just sent,

this is what I get in root terminal.  I input the sample configs you had listed for a 7950.

Quote
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#

legendary
Activity: 1484
Merit: 1005
Do you have a BTC address you use for small donations?

This one is fine
17bmYcP6Vio6c1gnyPsaDSv4B11SLe81Ab

C:
newbie
Activity: 45
Merit: 0
I am well versed in overclocking and I'm using afterburner for that, none of these settings do the trick, also i find that memory speed has almost no effect on hash rate.
There is certainly something wrong somewhere, because memclock tends to have huge effects.

Have you tried completely removing drivers and reinstalling?

Yeah, I have tried 12.8, 13.1, 13.2b7 and 13.3b2
I use the AMD uninstallation tool to remove them
full member
Activity: 137
Merit: 100
I was thinking Stay Puft, but Gozer said Grover
Nothing should change except the attribute on the file.  now,

Code:
./reaper
Should do something, because the FS recognizes it as an executable.

Sweet,

thanks.  It started in the terminal then quit cause I haven't specified a reaper.conf.    I'll go do that.  I forgot I unpacked the files again.

Do you have a BTC address you use for small donations?
legendary
Activity: 1484
Merit: 1005
Nothing should change except the attribute on the file.  now,

Code:
./reaper
Should do something, because the FS recognizes it as an executable.
full member
Activity: 137
Merit: 100
I was thinking Stay Puft, but Gozer said Grover
Sorry if this is off topic,

I finally got reaper to compile, I think.  It said it was linking the CXX executable to reaper or something similar.

Now I cannot get reaper to run.  The readme.md seems to suggest I go to the build folder and run reaper.  I click on reaper, or try and run reaper from the root terminal and get a command not found error.

If you cannot tell I know zilch about Linux.  I'm using Debian squeeze 64 if that makes any difference.

Thanks.

did you

Code:
chmod +x reaper
?

Thanks for the reply,

I just tried that from root terminal, and nothing happened.  I executed the command from the build directory where the reaper file is located.
legendary
Activity: 1484
Merit: 1005
Sorry if this is off topic,

I finally got reaper to compile, I think.  It said it was linking the CXX executable to reaper or something similar.

Now I cannot get reaper to run.  The readme.md seems to suggest I go to the build folder and run reaper.  I click on reaper, or try and run reaper from the root terminal and get a command not found error.

If you cannot tell I know zilch about Linux.  I'm using Debian squeeze 64 if that makes any difference.

Thanks.

did you

Code:
chmod +x reaper
?
hero member
Activity: 658
Merit: 500
I am well versed in overclocking and I'm using afterburner for that, none of these settings do the trick, also i find that memory speed has almost no effect on hash rate.
There is certainly something wrong somewhere, because memclock tends to have huge effects.

Have you tried completely removing drivers and reinstalling?
full member
Activity: 137
Merit: 100
I was thinking Stay Puft, but Gozer said Grover
Sorry if this is off topic,

I finally got reaper to compile, I think.  It said it was linking the CXX executable to reaper or something similar.

Now I cannot get reaper to run.  The readme.md seems to suggest I go to the build folder and run reaper.  I click on reaper, or try and run reaper from the root terminal and get a command not found error.

If you cannot tell I know zilch about Linux.  I'm using Debian squeeze 64 if that makes any difference.

Thanks.
newbie
Activity: 45
Merit: 0
I am well versed in overclocking and I'm using afterburner for that, none of these settings do the trick, also i find that memory speed has almost no effect on hash rate.
legendary
Activity: 916
Merit: 1003
Don't forget "--gpu-vddc x.x"  If you overclock you might have to overvolt as well.
hero member
Activity: 700
Merit: 500
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.

Quote
cgminer.exe --scrypt -o http://xxx -u x -p x --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 800 --gpu-memclock 870
newbie
Activity: 45
Merit: 0
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.
legendary
Activity: 1484
Merit: 1005
Try settings GPU threads to 2 instead of 1 for the 7970s.  That's the only thing I can think of.  If that fixes it, I'll update it in the next GUIminer release.

There are a lot of complaints about cgminer 2.11.3 right now, I need to verify it functions correctly before I will add it to GUIminer

2 threads = 421Kh/s

This may help

1 card, 16 gb system ram. Cgminer allocates only about 40MB, video memory usage is 1133MB.

Here are some hashrate numbers at different frequencies:

Gpu/Mem   Hashrate~
800/790   555kH/s
800/870   555kH/s
850/930   585kH/s
850/1065   585kH/s
900/1000   620kH/s
900/1155   625kH/s
900/1310   620kH/s
925/1000   635kH/s
925/1001   400kH/s
950/1205   655kH/s
950/1370   650kH/s
963/1375   665kH/s
963/1220   670kH/s
1000/1250   660kH/s
1000/1251   450kH/s
1000/1455   690kH/s
1024/1475   710kH/s
1044/1500   720kH/s
1044/1501   495kH/s

Klear, if you can verify any of these work let me know
legendary
Activity: 1484
Merit: 1005
legendary
Activity: 1484
Merit: 1005
The new version of cgminer, 2.11.3, with the scrypt updates is out:

https://bitcointalksearch.org/topic/m.1633258

Don't forget it was donations that made me improve it Wink

Yeah, anyone using 2.11.3 please chime, mostly people are saying that either the program doesn't run or the kernel throws lots of invalids so I'm a little skeptical.

I've been playing a bit with cgminer (2.11.2 and 2.11.3) and scrypt during the last few hours.
So far the best performance I could achieve on my GV-R797OC-3GD on windows 7 x64 with catalyst 13.2b7 was around 720kH/s with the following settings:
Code:
cgminer.exe --scrypt -o http://xxx -u x -p x --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1044 --gpu-memclock 1500

a more conservative 620kH/s with
Code:
cgminer.exe --scrypt -o http://xxx -u x -p x --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 900 --gpu-memclock 1155

and an even more conservative 550kH/s with
Code:
cgminer.exe --scrypt -o http://xxx -u x -p x --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 800 --gpu-memclock 870

Increasing thread concurrency above 8192 with --lookup-gap 2 always returns an error like
Code:
Maximum buffer memory device 0 supports says 536870912
Your scrypt settings come to 1467482112
Error -61: clCreateBuffer (padbuffer8), decrease CT or increase LG

Lowering thread concurrency below 8192 always produces hardware errors.

With -g > 1 using any intensity higher or lower than 13 will result in lower hashrates.

With -g 1 higher than 13 intensities will more or less match -g 2 -I 13 hashrate at the expenses of system responsiveness.

Increasing lookup gap allows for higher thread concurrencies, but it won't improve performance.

Setting the correct core/memory ratio for your card is the most important tweak, even a small 10MHz difference can make you lose/gain 100-200kH/s.

efx
sr. member
Activity: 378
Merit: 250
The new version of cgminer, 2.11.3, with the scrypt updates is out:

https://bitcointalksearch.org/topic/m.1633258

Don't forget it was donations that made me improve it Wink

Wow! Very nice.

I would really like to see a comparison from people running GCN cards on a few 13.2 betas vs. prior versions.
newbie
Activity: 45
Merit: 0
Try settings GPU threads to 2 instead of 1 for the 7970s.  That's the only thing I can think of.  If that fixes it, I'll update it in the next GUIminer release.

There are a lot of complaints about cgminer 2.11.3 right now, I need to verify it functions correctly before I will add it to GUIminer

2 threads = 421Kh/s
legendary
Activity: 1484
Merit: 1005
Try settings GPU threads to 2 instead of 1 for the 7970s.  That's the only thing I can think of.  If that fixes it, I'll update it in the next GUIminer release.

There are a lot of complaints about cgminer 2.11.3 right now, I need to verify it functions correctly before I will add it to GUIminer
newbie
Activity: 45
Merit: 0
I have 3 systems

1 Catalyst 13.3b2 on Windows 8 64bit
7970 @ 1000/1500 (i tried 1044/1500 like you had and it only increased hash by 20)
GUIMiner-scrypt w/ cgminer 2.11.2 (2.11.3 breaks GUIminer)
Using CGminer itself with the same settings and any other settings results in 400Kh/s
https://i.imgur.com/kGC7Oos.png

2 Catalyst 13.3b2 on Windows 7 64bit
2x 7970 @ 1000/1550
GUIMiner-scrypt w/ reaper
https://i.imgur.com/rt6sXvK.png


3 Catalyst 13.3b2 on Windows 7 64bit
5870 @ 850/1200
5850 @ 825/1200
GUIMiner-scrpyt w/ cgminer 2.11.2
https://i.imgur.com/kRyFJ08.png

I meant like chat not forum, but we'll see how this goes Smiley

I'll tip someone in BTC if they'll help me with this via teamviewer
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