\[solved\] Need help with cgminer in xubuntu \* miner advice

svennand

hmmm
added a couple of extras, thread-concurrency and worksize, now i get 273khash with intensity 13, 305 if i use intensity 18. no hw error.

Im new to mining with linux, and linux in general, so seems that i need to set these values manual, that cgminer do not do a good job guessing=)

EDIT:
Seems that i needed to set thread-concurrency manualy to 8192 that fixed it, just typing shaders didnt help.

svennand

hmm

anyone have any idea why i cant get my 6970 rig up to the hash i had on windows? now i get around 285khash pr card. it should be 450.

./cgminer --scrypt -thread-concurrency 8192 (also tried with shaders 1536), makes allmost no difference, intensity 16. if i turn it up to 20 i can still not get over 300…

UKMark

[quote name=“svennand” post=“6006” timestamp=“1369402154”]
hmm

anyone have any idea why i cant get my 6970 rig up to the hash i had on windows? now i get around 285khash pr card. it should be 450.

./cgminer --scrypt -thread-concurrency 8192 (also tried with shaders 1536), makes allmost no difference, intensity 16. if i turn it up to 20 i can still not get over 300…
[/quote]

I know I get approx 20kH/s less on Linux per card compared to Windows and this is because of better Driver compatibility and support for Windows by AMD… But nearly 200 difference and I would suspect my first suggestion that I made to you.

svennand

Strange,
followed the exact same recipie as the prevouse rig which gets me 570 on 7970 and 280 on 7850.

Tried changing thread-concurrency with hardly not much impact, unless i set it to 3200 then the hashrate goes higher but i get flooded with hw error.
tried setting -v 1 and -g1
worksize to 256 and adjusted Intensity both up and down.

Im really loving xubuntu on my rigs (remote control and so on), so i really want this to work=)

UKMark

[quote name=“svennand” post=“6028” timestamp=“1369405680”]
Strange,
followed the exact same recipie as the prevouse rig which gets me 570 on 7970 and 280 on 7850.

Tried changing thread-concurrency with hardly not much impact, unless i set it to 3200 then the hashrate goes higher but i get flooded with hw error.
tried setting -v 1 and -g1
worksize to 256 and adjusted Intensity both up and down.

Im really loving xubuntu on my rigs (remote control and so on), so i really want this to work=)
[/quote]

Is 280 normal for a 7850? I’m seeing 420+ off my 6950’s all standard factory clock…

svennand

[quote name=“UKMark” post=“6031” timestamp=“1369406008”]
[quote author=svennand link=topic=766.msg6028#msg6028 date=1369405680]
Strange,
followed the exact same recipie as the prevouse rig which gets me 570 on 7970 and 280 on 7850.

Tried changing thread-concurrency with hardly not much impact, unless i set it to 3200 then the hashrate goes higher but i get flooded with hw error.
tried setting -v 1 and -g1
worksize to 256 and adjusted Intensity both up and down.

Im really loving xubuntu on my rigs (remote control and so on), so i really want this to work=)
[/quote]

Is 280 normal for a 7850? I’m seeing 420+ off my 6950’s all standard factory clock…
[/quote]

i had 250 under windows, on all of my three 7850 (asus sapphire and gigabyte), everything at stock.
This is as far as i know normal as long as you do not do any overclocking I over 13 and so on.

However they use VERY little power. so 250 is pretty decent compared to their power consumption.

Seems that i getting closer now, when i completly removed the thread-concurrency i now get 400khash on each of those 5 cards.
Still not there, but it seems that the run somewhat cooler than they did under windows.

UKMark

[quote name=“svennand” post=“6053” timestamp=“1369408979”]
[quote author=UKMark link=topic=766.msg6031#msg6031 date=1369406008]
[quote author=svennand link=topic=766.msg6028#msg6028 date=1369405680]
Strange,
followed the exact same recipie as the prevouse rig which gets me 570 on 7970 and 280 on 7850.

Tried changing thread-concurrency with hardly not much impact, unless i set it to 3200 then the hashrate goes higher but i get flooded with hw error.
tried setting -v 1 and -g1
worksize to 256 and adjusted Intensity both up and down.

Im really loving xubuntu on my rigs (remote control and so on), so i really want this to work=)
[/quote]

Is 280 normal for a 7850? I’m seeing 420+ off my 6950’s all standard factory clock…
[/quote]

i had 250 under windows, on all of my three 7850 (asus sapphire and gigabyte), everything at stock.
This is as far as i know normal as long as you do not do any overclocking I over 13 and so on.

However they use VERY little power. so 250 is pretty decent compared to their power consumption.

Seems that i getting closer now, when i completly removed the thread-concurrency i now get 400khash on each of those 5 cards.
Still not there, but it seems that the run somewhat cooler than they did under windows.
[/quote]

Yeah I don’t use TC setting either, --shaders is all I use, works well for me.

svennand

i usually only set shaders. but when i did i got only low hash

solasaurus

[quote name=“svennand” post=“5890” timestamp=“1369344038”]
Woho i fixed it.

if anybody else has this problem.

just do this:

sudo apt-get install libudev1
cd /lib/x86_64-linux-gnu/
ln -s libudev.so.1 libudev.so.0

and done 8)
[/quote]

Just wanted to post to say thanks for posting this solution. I followed the same instructions you followed and got stuck at the same point with the same error. This helped me solve the problem and get my cgminer operational. So a thankyou is in order.

svennand

[quote name=“solasaurus” post=“18602” timestamp=“1372490472”]

Just wanted to post to say thanks for posting this solution. I followed the same instructions you followed and got stuck at the same point with the same error. This helped me solve the problem and get my cgminer operational. So a thankyou is in order.
[/quote]

Sweet :)