[ANN][GRS][DMD][DGB] Pallas optimized groestl opencl kernels - page 18.

pallas

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Quote from: utahjohn on October 03, 2014, 06:26:22 AM

@st.neman
Tried installing catalyst 14.9 and it totally borked hashrate using super kernel.
Stick with catalyst 14.7 RC3

I've experienced the hashrate drop on the new drivers too. I'll look into it: there might need to be two versions of the kernel.
You can still use the new drivers but the old bin files, it should work.

utahjohn

hero member

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@st.neman
Tried installing catalyst 14.9 and it totally borked hashrate using super kernel.
Stick with catalyst 14.7 RC3

St.Neman

newbie

Activity: 40

Merit: 0

Quote from: utahjohn on October 02, 2014, 02:43:17 PM

Quote from: St.Neman on October 02, 2014, 01:52:23 PM

Quote from: utahjohn on September 30, 2014, 06:54:51 PM

Interesting observation 280x, I had to raise GPU vdc in bios to get stable above 18.4MHs (now 1.118v) ... (was stable at 1.087v using previous kernel). Best for me 1160gpu/1500mem threads 1, TC 24576 (it does make a difference). Temps rise dramatically with minor increase in voltage sadly and have capped my overclock attempts as over 75c is enough for me Sad

I have been unable to lower mem clock it seems to be locked (powercolor R9 280x). Cooler ambient temps coming but will not gain all that much as temps seem to rise exponentially with overclocking (nice heater LOL).
Congrats on profitibility St.Neman I am barely profitable with increased power requirement but the 1 DMD reward window will end soon enough ... take advantage while you can. Got new (used) Mobo on the way and will soon get main miner back online (only 1 280x atm in entertainment box right now main miner mobo died in a puff of smoke LOL).
You should be able to push 73+ Mhs with 4 cards ... (volt mod and proper heatsink paste application).

thanks utahjohn,
gpu1090, mem1000, i22, 1,169V (temp 70C fan 2000-2500)
can't get more, i try but can't Sad

i have worst gpus 280x http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=2022&lid=1,
new gpus after a few months simply stop working,
then i must to change every capacitor on gpu
if i want to work again

Are you tuning each card individually (there is great varience between GPU quality on each card), try to tune them one by one in your config.
Smoked capacitors Huh

is your power unstable or PS faulty, I have never had a blown capacitor.

my equipment and power is absolutely ok, another's gpu's working perfectly, bad chinese capacitors is my only and big problem Sad

utahjohn

hero member

Activity: 630

Merit: 500

Quote from: St.Neman on October 02, 2014, 01:52:23 PM

Quote from: utahjohn on September 30, 2014, 06:54:51 PM

Interesting observation 280x, I had to raise GPU vdc in bios to get stable above 18.4MHs (now 1.118v) ... (was stable at 1.087v using previous kernel). Best for me 1160gpu/1500mem threads 1, TC 24576 (it does make a difference). Temps rise dramatically with minor increase in voltage sadly and have capped my overclock attempts as over 75c is enough for me Sad

I have been unable to lower mem clock it seems to be locked (powercolor R9 280x). Cooler ambient temps coming but will not gain all that much as temps seem to rise exponentially with overclocking (nice heater LOL).
Congrats on profitibility St.Neman I am barely profitable with increased power requirement but the 1 DMD reward window will end soon enough ... take advantage while you can. Got new (used) Mobo on the way and will soon get main miner back online (only 1 280x atm in entertainment box right now main miner mobo died in a puff of smoke LOL).
You should be able to push 73+ Mhs with 4 cards ... (volt mod and proper heatsink paste application).

thanks utahjohn,
gpu1090, mem1000, i22, 1,169V (temp 70C fan 2000-2500)
can't get more, i try but can't Sad

i have worst gpus 280x http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=2022&lid=1,
new gpus after a few months simply stop working,
then i must to change every capacitor on gpu
if i want to work again

Are you tuning each card individually (there is great varience between GPU quality on each card), try to tune them one by one in your config.
Smoked capacitors Huh

is your power unstable or PS faulty, I have never had a blown capacitor.

St.Neman

newbie

Activity: 40

Merit: 0

Quote from: utahjohn on September 30, 2014, 06:54:51 PM

Interesting observation 280x, I had to raise GPU vdc in bios to get stable above 18.4MHs (now 1.118v) ... (was stable at 1.087v using previous kernel). Best for me 1160gpu/1500mem threads 1, TC 24576 (it does make a difference). Temps rise dramatically with minor increase in voltage sadly and have capped my overclock attempts as over 75c is enough for me Sad

I have been unable to lower mem clock it seems to be locked (powercolor R9 280x). Cooler ambient temps coming but will not gain all that much as temps seem to rise exponentially with overclocking (nice heater LOL).
Congrats on profitibility St.Neman I am barely profitable with increased power requirement but the 1 DMD reward window will end soon enough ... take advantage while you can. Got new (used) Mobo on the way and will soon get main miner back online (only 1 280x atm in entertainment box right now main miner mobo died in a puff of smoke LOL).
You should be able to push 73+ Mhs with 4 cards ... (volt mod and proper heatsink paste application).

thanks utahjohn,
gpu1090, mem1000, i22, 1,169V (temp 70C fan 2000-2500)
can't get more, i try but can't Sad

i have worst gpus 280x http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=2022&lid=1,
new gpus after a few months simply stop working,
then i must to change every capacitor on gpu
if i want to work again

utahjohn

hero member

Activity: 630

Merit: 500

Quote from: pallas on October 02, 2014, 03:00:09 AM

Quote from: utahjohn on October 02, 2014, 02:55:49 AM

I've found it is needed to keep GPU temp below 72C with the powercolor R9 280x, GPU clock gets throttled down >= 72C ...

72C looks pretty low to me... my 290s throttles at 95 and 85.

Not a real concern for me with groestl (running under 72C) but running X11 it is an issue when I OC to 1080/1650.

Might have something to do with fan profiles in vbios ... have not messed with that yet.

Just checked status on my ebay order of replacement motherboard for mining box (MOBO/RAM/CPU - Asrock H81 PRO BTC/G3220 3GHZ/4GB 1600 DDR3) and it has reached post office here in SLC

should get delivered tomorrow or next day

then I can bring more cards online again

~

R9 280x stable at 18.47 Mhs temp 71C (1170/150) after 15+ hours

pallas

legendary

Activity: 2716

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Black Belt Developer

Quote from: utahjohn on October 02, 2014, 02:55:49 AM

I've found it is needed to keep GPU temp below 72C with the powercolor R9 280x, GPU clock gets throttled down >= 72C ...

72C looks pretty low to me... my 290s throttles at 95 and 85.

utahjohn

hero member

Activity: 630

Merit: 500

I've found it is needed to keep GPU temp below 72C with the powercolor R9 280x, GPU clock gets throttled down >= 72C ...

utahjohn

hero member

Activity: 630

Merit: 500

I'm getting query from another user on my thread on status of x11mod ... any progress?

pallas

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Quote from: ?? on ??

mmmm ... wonderful odor, I am steam curing a pound of virginia tobacco in oven for my own version of dark molasses cavendish ... nice rich smooth smoke and it's getting really dark after 8 hr sample.

I'm wondering what it has to do with this thread.
Still, thanks for the bump ;-)

utahjohn

hero member

Activity: 630

Merit: 500

OK that worked I was able to lower mem clock to 500, trying further OC now ...

Temp dropped from 76-77C to 72C with current settings (1170 GPU 500 MEM) 18.5MHs after 10 min ... will probably lower memclk to 150 like on OP

Lowered memclk to 150 by bios mod and gpu to 1.112V

Temp 71C after 25 min at 1171/150 18.48Mhs

I'm happy with that and will leave it alone for a week to see if stable

Display driver crash after 30 min, lowering clock by 1 ...

NOTE: VBios modding is not for the faint of heart, this would likely destroy gaming performance, use only on dedicated mining box

Question for more experienced miners ... what would I=22 be as xIntensity on r9 280x? (2048 shaders)

utahjohn

hero member

Activity: 630

Merit: 500

Researching inability to lower mem clock, I use VBE7.0.0.7b.exe and atiwinflash to do the volt mod on 280x and 7950.
Going to try force mem clock in bios ... I get worried about flashing card so many times but it's worth a try ...

pallas

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Activity: 2716

Merit: 1094

Black Belt Developer

Quote from: utahjohn on September 30, 2014, 06:54:51 PM

Interesting observation 280x, I had to raise GPU vdc in bios to get stable above 18.4MHs (now 1.118v) ... (was stable at 1.087v using previous kernel). Best for me 1160gpu/1500mem threads 1, TC 24576 (it does make a difference). Temps rise dramatically with minor increase in voltage sadly and have capped my overclock attempts as over 75c is enough for me Sad

I have been unable to lower mem clock it seems to be locked (powercolor R9 280x). Cooler ambient temps coming but will not gain all that much as temps seem to rise exponentially with overclocking (nice heater LOL).
Congrats on profitibility St.Neman I am barely profitable with increased power requirement but the 1 DMD reward window will end soon enough ... take advantage while you can. Got new (used) Mobo on the way and will soon get main miner back online (only 1 280x atm in entertainment box right now main miner mobo died in a puff of smoke LOL).
You should be able to push 73+ Mhs with 4 cards ... (volt mod and proper heatsink paste application).

It's a pity you can't reduce mem clock because it would save you watts and lower the card temperature (and also let you overclock the core more).
I think the 280x has a maximum core/ram clock range like the 7950: I used to set it at 1150 core and 1000 ram.
If the hashrate changes with thread concurrency, it's probably just compiler variance and not due to the TC buffer which is not used at all. Try removing the bins and restart a handful of times, you'll probably see different hashrates with the exact same settings.

utahjohn

hero member

Activity: 630

Merit: 500

@pallas
have you looked into incorporating super optimized groestl into the X11mod kernel on my thread (in sig)?

utahjohn

hero member

Activity: 630

Merit: 500

Interesting observation 280x, I had to raise GPU vdc in bios to get stable above 18.4MHs (now 1.118v) ... (was stable at 1.087v using previous kernel). Best for me 1160gpu/1500mem threads 1, TC 24576 (it does make a difference). Temps rise dramatically with minor increase in voltage sadly and have capped my overclock attempts as over 75c is enough for me Sad

I have been unable to lower mem clock it seems to be locked (powercolor R9 280x). Cooler ambient temps coming but will not gain all that much as temps seem to rise exponentially with overclocking (nice heater LOL).
Congrats on profitibility St.Neman I am barely profitable with increased power requirement but the 1 DMD reward window will end soon enough ... take advantage while you can. Got new (used) Mobo on the way and will soon get main miner back online (only 1 280x atm in entertainment box right now main miner mobo died in a puff of smoke LOL).
You should be able to push 73+ Mhs with 4 cards ... (volt mod and proper heatsink paste application).

pallas

legendary

Activity: 2716

Merit: 1094

Black Belt Developer

Quote from: St.Neman on September 30, 2014, 03:42:47 PM

4gpu 280x = 69Mhs = about 7000AID x 0.00000086 = 0.00602 BTC/daily

(power consumption 870W/h)

0,00602BTC = 2,35$/daily
electricity = 1,12$/daily

2,35$ - 1,12$ = 1,23$/daily

That's good! You pay very little for your electricity...
I pay a lot more so it's no longer profitable for me for a long time now.

St.Neman

newbie

Activity: 40

Merit: 0

4gpu 280x = 69Mhs = about 7000AID x 0.00000086 = 0.00602 BTC/daily

(power consumption 870W/h)

0,00602BTC = 2,35$/daily
electricity = 1,12$/daily

2,35$ - 1,12$ = 1,23$/daily

losk22

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pallas

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Quote from: losk22 on September 29, 2014, 02:39:45 AM

What coins can be extracted with your algorithm?

the ones using the groestlcoin algo (groestl + groestl): for example diamond, aidbit and atheistcoin.
not myriad groestl like saffroncoin and digibyte.

Spider07

full member

Activity: 144

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Quote from: losk22 on September 28, 2014, 04:24:09 AM

Replace groestlcoin.cl, diamond.cl and/or the kernel you want to use with this one (it's inside the "kernel" folder) You can read more?

Thanks for your help.

Sorry forgot to mention that I have done that.
To be sure , I deleted all files in kernel folder
I have only 1 file (groestlcoin-v1.cl renamed to groestlcoin.cl)

I can't reach 16 Mh/s..... Cry

only 6..... Cry

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