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Author Topic: Modular Python Bitcoin Miner - Official Thread  (Read 69268 times)
O_Shovah
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May 24, 2012, 10:55:09 AM
 #301

Hello


Its me again Wink

Two little issues i ran into again.

First  my x6500:

Code:
self.core.event(350, self.children[0], "temperature", fpga0 * 1000, "%f \xc2\xb0C" % fpga0, worker = self.children[0])
bash: Syntaxfehler beim unerwarteten Wort `350,'
schwing@R2079-W5:~$ TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'

Second the Butterfly auto manager:

If i hook up two Butterfly boxes to the miner they react in a strange way.

They start some kind of flic flacing the work between the two boards so one is doing nothing while the other is on full.
A few seconds later its the other way around
I just get them to work if manually define workers for each of them.

Any ideas ?

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May 24, 2012, 06:13:56 PM
 #302

Hello


Its me again Wink

Two little issues i ran into again.

First  my x6500:

Code:
self.core.event(350, self.children[0], "temperature", fpga0 * 1000, "%f \xc2\xb0C" % fpga0, worker = self.children[0])
bash: Syntaxfehler beim unerwarteten Wort `350,'
schwing@R2079-W5:~$ TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'


This looks like the same problem that freshzive ran into. See:

That's a regression on the testing branch as of about 3 days ago, which managed to slip through my testing.
Run "git reset --hard 21575deb675015e20e0ec68958e595e49c6988db" to go back to a working revision for now until I fix this later today.

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May 25, 2012, 02:18:07 AM
 #303

I don't know if anyone else is having this issue but one of my singles is showing odd performance metrics. The Accepted Shared, Cancelled Shares, Accepted jobs, etc are all heavily disproportionate when compared to the first one. This is BFL Single 2 that is doing this. I've attached a screenshot.

Any help is greatly appreciated!

Maybe I need to tune the pool settings a bit? I'm mining with btc guild. As you can see the first single is doing ok.

I've downclocked the second single as it was throttling but the slightly lower speed (825 mhs) does not explain the odd performance - or at least it should not.


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May 25, 2012, 02:55:36 AM
 #304

Update:


Hmm, well I flashed the formerly throttling unit back up to the stock 832 firmware and the previous issue with rejected jobs and shares disappeared..it seems running these things at differing hashrates (asynchronously) is not such a good idea. This could be an issue with the mining software, but I don't know for sure at this point.



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May 25, 2012, 08:49:35 AM
 #305

I think it's highly unlikely that there is an issue with multiple BFLs running at different speeds. I'd rather suspect that the "slower" BFL's firmware just doesn't work properly.
If you want to nail this issue down, can you please try running only the "slower" single (with the slower firmware) for some hours and give me the ghashes total, accepted jobs and accepted shares numbers? Or you could also try running both of them with the slower firmware to check if both go nuts in that case Smiley

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May 26, 2012, 06:42:09 PM
 #306

I think it's highly unlikely that there is an issue with multiple BFLs running at different speeds. I'd rather suspect that the "slower" BFL's firmware just doesn't work properly.
If you want to nail this issue down, can you please try running only the "slower" single (with the slower firmware) for some hours and give me the ghashes total, accepted jobs and accepted shares numbers? Or you could also try running both of them with the slower firmware to check if both go nuts in that case Smiley

Sure,  I'll do that next week as I'm moving the cooler running single to a different location. Then I'll be able to run the hotter (the one that I had to originally downclock) single all by itself using the 825 firmware.


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May 28, 2012, 11:38:08 AM
 #307

I think it's highly unlikely that there is an issue with multiple BFLs running at different speeds. I'd rather suspect that the "slower" BFL's firmware just doesn't work properly.
If you want to nail this issue down, can you please try running only the "slower" single (with the slower firmware) for some hours and give me the ghashes total, accepted jobs and accepted shares numbers? Or you could also try running both of them with the slower firmware to check if both go nuts in that case Smiley

Sure,  I'll do that next week as I'm moving the cooler running single to a different location. Then I'll be able to run the hotter (the one that I had to originally downclock) single all by itself using the 825 firmware.



Could you give me the two temperatures of you singles and the room temperature. I would like to have some comparison.

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May 28, 2012, 12:58:18 PM
 #308

Room temp 27C

Single 1: 47.50
Single 2: 51.20


O_Shovah
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June 06, 2012, 09:27:13 PM
 #309

So maybe a picture of my current (nonpermanent) setup of watercooled FPGA boards wich are manged by MPBM

 .... 2,4 Gh/s .. @ 200 W ... nom nom nom

And thanks a lot to TheSeven for all the bugfixing he is doing for me as i seem to come around with bugs and errors most frequently Wink


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June 08, 2012, 08:35:00 AM
 #310

So maybe a picture of my current (nonpermanent) setup of watercooled FPGA boards wich are manged by MPBM

 .... 2,4 Gh/s .. @ 200 W ... nom nom nom

And thanks a lot to TheSeven for all the bugfixing he is doing for me as i seem to come around with bugs and errors most frequently Wink



What kind of CPU-board is this? Looks not like an Rasberry-PI.

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O_Shovah
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June 08, 2012, 09:05:24 AM
 #311

Its a Pandaboard ES running Ubuntu ARM and my ports of bitcoin-qt/bitcoind  and mpbm.

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June 13, 2012, 06:33:46 PM
 #312

Has anyone been able to setup MPBM via VMware, I know VM sometime doesn't see some USB devices. Windows 7 x64 Host with a Linux VM.

Also what Linux distro would allow me to startup in text mode and then startx in to a GUI (make it easy for me to setup MPBM then leave it low resource mode). I like this with some of the older version of Red Hat, but not seen any others that allow for this.

Thanks in Advance.

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June 13, 2012, 08:02:59 PM
 #313

Does MPBM performance deteriorate over time? Or is that the x6500s?

I notice that when I start MPBM (w/ 6 x6500s), performance is in the 2300-2400Mhash range (as reported by my pool). After about a week of running, it seems to have slowly dropped to around 2000-2100Mhash.

MPBM looks fine and all my miners are still submitting shares, so it just seems there is a slight deterioration in performance over time. This is in Ubuntu 12.04.

Restarting Ubuntu and loading MPBM (firmware on miners is also reloaded) seems to restore the original, faster hashrate.

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June 13, 2012, 09:20:16 PM
 #314

Does MPBM performance deteriorate over time? Or is that the x6500s?

I notice that when I start MPBM (w/ 6 x6500s), performance is in the 2300-2400Mhash range (as reported by my pool). After about a week of running, it seems to have slowly dropped to around 2000-2100Mhash.

MPBM looks fine and all my miners are still submitting shares, so it just seems there is a slight deterioration in performance over time. This is in Ubuntu 12.04.

Restarting Ubuntu and loading MPBM (firmware on miners is also reloaded) seems to restore the original, faster hashrate.

Which bitstream are you using?
Are there any signs of a memory leak, i.e. increasing memory usage over time?
Are there situations where it shows shitloads of "got <count> jobs from <work source>" on the console?

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June 13, 2012, 09:25:07 PM
 #315

I notice that when I start MPBM (w/ 6 x6500s), performance is in the 2300-2400Mhash range (as reported by my pool).
It's most likely that the pool is being overly optimistic at the beginning.

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June 14, 2012, 03:51:56 PM
 #316

Can anyone help me with a step by step instruction on how to get a bfl to work with this miner on windows.
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June 16, 2012, 12:38:12 AM
 #317

I guess no one has used any BFL singles with this miner on windows.
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June 16, 2012, 02:28:41 AM
 #318

Only REV1 BFL Singles work with MPBM

a worker module for the REV3 has been on do list but TheSeven just hasnt gotten around to it yet.

So unless you have all BFL REV1 singles they will not work with MPBM

however all versions of the ModMiner Quad will. Smiley

If you need help getting either one working with MPBM please dont hesitate to ask

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June 16, 2012, 05:10:33 AM
 #319

Only REV1 BFL Singles work with MPBM

a worker module for the REV3 has been on do list but TheSeven just hasnt gotten around to it yet.

So unless you have all BFL REV1 singles they will not work with MPBM


That isn't true.  I have rev.3 singles and they have worked just fine with MPBM since the first time I plugged them in.  I am running linux though, so if you are referring to a Windows-specific problem you may want to be more explicit with your statement.

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O_Shovah
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June 16, 2012, 12:05:51 PM
 #320

I guess no one has used any BFL singles with this miner on windows.

I can do a testing on it today if you realy prefere windows.

Otherwise i would strongly recommend you to use  ubuntu or another debian flavour of linux wich mpbm
was originally written for.

In that case i may give you a detailed stepguide.

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