python OpenCL bitcoin miner - page 27.

Kiv

full member

Activity: 162

Merit: 100

I don't have a 5970, but my understanding is the 5970 is just two 5870s together on one card with an internal crossfire bridge and a slight downclocking. So I think Cypress x2 is the correct report.

Quote from: marcus_of_augustus on March 02, 2011, 08:21:54 AM

In linux I issue a

$./poclbm

and get in return

AMD Phenom(tm) II X2 555 Processor

ZeroByte

newbie

Activity: 2

Merit: 0

Can anyone tell why this miner is maxing out one CPU core / instance. I don´t seem to be the only one having this problem.

My specs:

Win 7 64bit
Cats 11.2
AMD Stream 2.3
Dual 5850s
Miner: poclbm_py2exe_20110222

I tested using older Cats 10.12 & Stream 2.2 but it didn´t help at all. Disabling or enabling crossfire also doesn´t help.

I have quad core i5 processor so when i start first instance CPU goes up to 25% and after starting second one it goes up to 50%
MH/s rates are always normal nevertheless.

Didn´t have this problem when i had only one HD 5850, so it probably goes away if i take the second card off.

marcus_of_augustus

legendary

Activity: 3920

Merit: 2349

Eadem mutata resurgo

In linux I issue a

$./poclbm

and get in return

AMD Phenom(tm) II X2 555 Processor

slush

legendary

Activity: 1386

Merit: 1097

Quote from: qet on February 27, 2011, 11:16:08 PM

"problems communicating with RPC server" or something of the like.

not much point using this program if it cannot reliably mine 24/7.

This error does not mean that program crashed. It just inform you that there was trouble on network side, but it can recover easily. No restart or whatever needed...

qet

newbie

Activity: 12

Merit: 0

Twice I have run this miner overnight on my PC and twice I have woken up to the CMD window saying "problems communicating with RPC server" or something of the like.

Yes, it was working fine when I left it (i.e. displaying the khash rate).
Bitcoin was still running (with -server) fine.

Os: winxp

not much point using this program if it cannot reliably mine 24/7.
anyone else have this problem?

nster

full member

Activity: 126

Merit: 100

until now I had down-clocked back to 1000 core as that is the frequency where at -f 30 I can basically use my comp normally and watch videos etc. I never got the verification failed before, only computer freeze if OCed at 1055+

idk if I'll OC it to 1040 again or take the 13Mhash/s hit

Grinder

legendary

Activity: 1284

Merit: 1001

Quote from: qed on February 27, 2011, 06:32:35 AM

That's not true.

Guess my computer's just is really good at fooling Slush's pool, then.

qed

full member

Activity: 196

Merit: 100

Quote from: Grinder on February 27, 2011, 05:42:59 AM

Quote from: nster on February 27, 2011, 05:32:28 AM

how could I check for invalid hashes?

poclbm will say "Verification failed. check hardware". You probably don't need to worry, at least I've never seen this from overclocking. Either it generates valid hashes, or the computer freezes. I've got a 5850 running fine at 930 MHz (default is 725). It actually didn't crash before it reached 970, but I had to flash it to put it in a Linux server so I can't really fine tune it.

That's not true.

deMangler

newbie

Activity: 29

Merit: 0

Quote from: Grinder on February 27, 2011, 05:42:59 AM

Quote from: nster on February 27, 2011, 05:32:28 AM

how could I check for invalid hashes?

poclbm will say "Verification failed. check hardware". You probably don't need to worry, at least I've never seen this from overclocking. Either it generates valid hashes, or the computer freezes. I've got a 5850 running fine at 930 MHz (default is 725). It actually didn't crash before it reached 970, but I had to flash it to put it in a Linux server so I can't really fine tune it.

I mine with overclocked NVidias. Using poclpm.
I slowly tweak them as high as I can with riva, and I do get "Verification failed. check hardware" as I approach (or rather slightly cross) their limit. I find it is a good test of how high I can overclock my cards.
dM

Grinder

legendary

Activity: 1284

Merit: 1001

Quote from: nster on February 27, 2011, 05:32:28 AM

how could I check for invalid hashes?

poclbm will say "Verification failed. check hardware". You probably don't need to worry, at least I've never seen this from overclocking. Either it generates valid hashes, or the computer freezes. I've got a 5850 running fine at 930 MHz (default is 725). It actually didn't crash before it reached 970, but I had to flash it to put it in a Linux server so I can't really fine tune it.

nster

full member

Activity: 126

Merit: 100

Quote from: qed on February 27, 2011, 03:40:54 AM

Quote from: nster on February 27, 2011, 03:13:15 AM

I couldn't get my GT240 and 6870 top play nice together, so only my 6870 mines. I get ~280Mhash/s with 1040 core and 300 mem. keep in mind my 6870 OCs really badly, 975 core in games = instant BSOD. Try using MSI afterburner

Then you are generating invalid hases at that frequency. The fact that your card is not is not giving you a BOSD while mining doesnt mean it's stable.

how could I check for invalid hashes?

qed

full member

Activity: 196

Merit: 100

Quote from: nster on February 27, 2011, 03:13:15 AM

I couldn't get my GT240 and 6870 top play nice together, so only my 6870 mines. I get ~280Mhash/s with 1040 core and 300 mem. keep in mind my 6870 OCs really badly, 975 core in games = instant BSOD. Try using MSI afterburner

Then you are generating invalid hases at that frequency. The fact that your card is not is not giving you a BOSD while mining doesnt mean it's stable.

Fuma

newbie

Activity: 9

Merit: 0

Quote from: nster on February 27, 2011, 03:13:15 AM

I couldn't get my GT240 and 6870 top play nice together, so only my 6870 mines. I get ~280Mhash/s with 1040 core and 300 mem. keep in mind my 6870 OCs really badly, 975 core in games = instant BSOD. Try using MSI afterburner

I get ~315Mhash with 5870 on stock frequencies. w/o the 8800gtx together they make on stock about ~345Mhash
so i dont let the 8800gtx to do nothing -not worth the electricity.
but they work well mining and gaming.

nster

full member

Activity: 126

Merit: 100

Quote from: Fuma on February 26, 2011, 11:15:25 PM

Hi
Been using this miner.
and i did some changes in my GPU configuration.
i got a hd5870 and 8800GTX running together.
the miner recognize the 5870 but lists cuda as the interface(?) instead of opencl
and it never starts.

tried changing the number of device in bat file. basically tried everything i could on my own...
i know the double drivers must confuse the miner...but is there a way to go around this?

Edit :
the platform command fix this issue.
but now i'm getting connecting to rpc server problems.
hope it's not related.

I couldn't get my GT240 and 6870 top play nice together, so only my 6870 mines. I get ~280Mhash/s with 1040 core and 300 mem. keep in mind my 6870 OCs really badly, 975 core in games = instant BSOD. Try using MSI afterburner

Fuma

newbie

Activity: 9

Merit: 0

Hi
Been using this miner.
and i did some changes in my GPU configuration.
i got a hd5870 and 8800GTX running together.
the miner recognize the 5870 but lists cuda as the interface(?) instead of opencl
and it never starts.

tried changing the number of device in bat file. basically tried everything i could on my own...
i know the double drivers must confuse the miner...but is there a way to go around this?

Edit :
the platform command fix this issue.
but now i'm getting connecting to rpc server problems.
hope it's not related.

qed

full member

Activity: 196

Merit: 100

Quote from: qet on February 26, 2011, 06:31:42 PM

Quote from: qed on February 26, 2011, 08:29:04 AM

Is poclbm periodically checking for the correct generation of ashes or do i have to make a stability test after changing voltage/frequency?

qed, if you read my post then you'd know that it does check.
if your card isn't stable then it will crash with "Verification failed. check hardware"

It's not that simple.

qet

newbie

Activity: 12

Merit: 0

And just to add another issue:
i ran poclbm overnight and in the morning it had stopped working with an error something like "failed to communicate with RPC server" ...
does this mean the bitcoin server crashed some time overnight?

qet

newbie

Activity: 12

Merit: 0

Quote from: qed on February 26, 2011, 08:29:04 AM

Is poclbm periodically checking for the correct generation of ashes or do i have to make a stability test after changing voltage/frequency?

qed, if you read my post then you'd know that it does check.
if your card isn't stable then it will crash with "Verification failed. check hardware"

qed

full member

Activity: 196

Merit: 100

Quote from: JWU42 on February 26, 2011, 09:58:48 AM

Are you running the card at stock for now while debugging?

Me? My cards are actually on underclock and undervoltage. With the standard GPu at 1.1V (stock voltage) my 2xHD6950 are stable at 920 MHz (800MHz is the stock clock).
The power disippated is heavily related to the voltage and way less on the gpu clock, so there is no point for me to keep the 2 cards at 1.1V. The cards are way quieter.

JWU42

legendary

Activity: 1666

Merit: 1000

Are you running the card at stock for now while debugging?

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