I get only ~560Kh/s for 280x Radeon video card. (10000 DOGE Bounty)

backtrackit

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Activity: 112

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Quote from: romanticon on February 15, 2014, 03:36:37 AM

Quote from: backtrackit on February 15, 2014, 03:01:09 AM

overclock the gpu http://www.overclock.net/t/517861/how-to-overclocking-ati-cards-in-linux. if you look here https://litecoin.info/Mining_hardware_comparison your getting around whats expected at gpu engine speed 1000. If runs unstabe you may need to up the voltage if temps allow.

Sounds fantastic , what settings you
made here:
aticonfig --odsc=???,???

After looking into it more it looks like you would have to flash your gpu with a modified bios. I use winblows and normally use afterburner to overclock. That been said have flashed the odd card and is fairly straight forward to do.

fynrd1

newbie

Activity: 16

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You need to flash your bios first. Then you'll be able to hit the 650k at least, with common settings.

romanticon

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Merit: 100

Quote from: backtrackit on February 15, 2014, 03:01:09 AM

overclock the gpu http://www.overclock.net/t/517861/how-to-overclocking-ati-cards-in-linux. if you look here https://litecoin.info/Mining_hardware_comparison your getting around whats expected at gpu engine speed 1000. If runs unstabe you may need to up the voltage if temps allow.

Sounds fantastic , what settings you
made here:
aticonfig --odsc=???,???

backtrackit

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Activity: 112

Merit: 10

Quote from: romanticon on February 15, 2014, 02:49:45 AM

Quote from: backtrackit on February 15, 2014, 02:42:24 AM

raise core clock is what you need now to push it further

What exactly do you mean ?
What parameter is a core clock ?

overclock the gpu http://www.overclock.net/t/517861/how-to-overclocking-ati-cards-in-linux. if you look here https://litecoin.info/Mining_hardware_comparison your getting around whats expected at gpu engine speed 1000. If runs unstabe you may need to up the voltage if temps allow.

romanticon

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Merit: 100

Quote from: backtrackit on February 15, 2014, 02:42:24 AM

raise core clock is what you need now to push it further

What exactly do you mean ?
What parameter is a core clock ?

backtrackit

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Activity: 112

Merit: 10

Quote from: romanticon on February 15, 2014, 02:22:54 AM

Quote from: backtrackit on February 15, 2014, 02:11:58 AM

have you tried worksize at 512?

Just tested it , same ~703K

raise core clock is what you need now to push it further

romanticon

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Activity: 123

Merit: 100

Quote from: backtrackit on February 15, 2014, 02:11:58 AM

have you tried worksize at 512?

Just tested it , same ~703K

backtrackit

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Activity: 112

Merit: 10

have you tried worksize at 512?

romanticon

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Activity: 123

Merit: 100

Quote from: crazyates on February 15, 2014, 01:48:36 AM

I can't believe no one has said this before....

If you're mining on a 280x, and using a TC of 8192 (which you should), you NEED to use "--gpu-threads 2". I've tuned dozens of 280x, with all sorts of settings, and this is always the case.

Thanks crazyates, I do use "--gpu-threads 2" otherwise it's 300Kh/s

Quote from: chaeplin on February 15, 2014, 01:41:07 AM

--gpu-engine 1050

I don't know why but only precise
--gpu-engine 1000
give me maximum performance.
Any other value give 100k less
immediately.

crazyates

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Activity: 952

Merit: 1000

I can't believe no one has said this before....

If you're mining on a 280x, and using a TC of 8192 (which you should), you NEED to use "--gpu-threads 2". I've tuned dozens of 280x, with all sorts of settings, and this is always the case.

I've edited your config. Removed some unnecessary settings, tweaked a few others, and see if that works:

Code:

"thread-concurrency" : "8192",
"lookup-gap" : "2",
"gpu-threads" : "2",
"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"scrypt" : true,
"gpu-engine" : "1060",
"gpu-memclock" : "1500",
"gpu-powertune" : "20",
"auto-fan" : true,
"gpu-fan" : "0-85",
"temp-target" : "75",
"temp-overheat" : "85",
"temp-cutoff" : "95",
"temp-hysteresis" : "3",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"api-mcast-port" : "4028",
"api-port" : "4028",
"failover-only" : true,
"no-pool-disable" : true,
"queue" : "0",
"scan-time" : "5",
"expiry" : "10",
"log" : "5",
"kernel-path" : "/usr/local/bin"

chaeplin

sr. member

Activity: 294

Merit: 250

Ububtu ?!! Try this

#!/bin/sh

export DISPLAY=:0
export GPU_MAX_ALLOC_PERCENT=100
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_HEAP_SIZE=100

# remove if work well
rm scrypt*.bin
# remove if work well

./cgminer \
--scrypt \
-o pool address \
--worksize 256 \
--thread-concurrency 8192 \
--gpu-threads 2 \
--gpu-engine 1050 \
--gpu-memclock 1500 \
--gpu-platform 0 \
--temp-target 75 \
--temp-cutoff 90 \
--shaders 2048 \
--lookup-gap 2 \
--intensity 13 \
--log 1 \
--queue 0 \
--auto-fan \
--worktime

romanticon

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Activity: 123

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That is the best I get so far,
the settings that actually matters here is:

"gpu-engine" : "1000",
"gpu-memclock" : "1500",
"intensity" : "13",
"thread-concurrency" : "8192",

if you will help me push it higher
you will get the reward:

backtrackit

member

Activity: 112

Merit: 10

start by lowering lowering thread-concurrency until you hit the sweet spot, might want to lower intensity first to 13, then when you find best thread concurrency up the intensity.

Wipeout2097

sr. member

Activity: 840

Merit: 255

SportsIcon - Connect With Your Sports Heroes

See this: https://bitcointalksearch.org/topic/m.4849281

romanticon

full member

Activity: 123

Merit: 100

Ok.... here is on fresh install with 13.5 version driver
very poor results Sad

Code:

"intensity" : "20",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "21712",
"shaders" : "0",
"gpu-engine" : "1000-1000",
"gpu-fan" : "0-85",
"gpu-memclock" : "1550",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"

PondSea

legendary

Activity: 1428

Merit: 1000

try TC as 8191

romanticon

full member

Activity: 123

Merit: 100

Quote from: neflihim on February 14, 2014, 03:00:13 PM

Try this :

Code:

"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "0",
"thread-concurrency" : "8192",
"shaders" : "0",
"gpu-engine" : "1050",
"gpu-fan" : "0-85",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"

DMg2dWZ4KLUhTBUhZuwaLxYqxH1MRMdtBM

It will take some time
I am installing a fresh image.

neflihim

newbie

Activity: 44

Merit: 0

I have the dual-x as well and can only get 715K out of each. Try to pull engine clock down to 1035 in config I posted above.

I have 5 of them and use that config.

I didn't notice that they were the dual-x before I posted the 1050 engine clock in the above config or I would have changed it.

neflihim

newbie

Activity: 44

Merit: 0

Try this :

Code:

"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "0",
"thread-concurrency" : "8192",
"shaders" : "0",
"gpu-engine" : "1050",
"gpu-fan" : "0-85",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"

DMg2dWZ4KLUhTBUhZuwaLxYqxH1MRMdtBM

romanticon

full member

Activity: 123

Merit: 100

by the way that is the exact model I use:

http://cd-log.co.il/catalog/HE/#p=product/12581

Topic: I get only ~560Kh/s for 280x Radeon video card. (10000 DOGE Bounty) (Read 1220 times)