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Author Topic: OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.11.1  (Read 5776871 times)
This is a self-moderated topic. If you do not want to be moderated by the person who started this topic, create a new topic. (2 posts by 2 users deleted.)
thejestre
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March 16, 2013, 05:17:26 AM
 #8981

Hi all,

Thanks for creating and maintaining such a great program!

Does anyone mine Litecoin/scrypt on a GPU with cgminer and want to share their hashrate?  I'm using an nVidia 680M and getting about 7Kh/s, but my CPU miner gets about 40Kh/sec.  I know nVidia cards aren't great for Bitcoin, but does my hashrate seem right for LTC?  I'm using Windows 7 pro with an Intel i7 3720QM, 32 GB RAM.

Thanks,

_theJestre
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March 16, 2013, 05:40:07 AM
 #8982

Nvidia just sux for mining.
Read this: https://en.bitcoin.it/wiki/Mining_hardware_comparison

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March 16, 2013, 06:09:58 AM
 #8983

Nvidia just sux for mining.
Read this: https://en.bitcoin.it/wiki/Mining_hardware_comparison

It should at least outperform my CPU though, right?
I think my setup is having a hard time switching between the integrated Intel graphics and the 680M.  I've tried to tell the laptop to run cgminer using the 680M but think I'm falling short.

I only see one graphics card in cgminer also.

F'ing nVidia Optimus...
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March 16, 2013, 07:11:46 AM
 #8984

Another litecoin miner question.

I have a dual boot computer.  It has a 6 core AMD processor, 2 GBytes memory, and 2 5850 cards.  It mines bitcoins well.   Under Ubuntu 11.04 it will not mine litecoins.  But if I boot to Windows 7 and run the same version of cgminer it will mine litecoins well.

The hardware, the cgminer version and the cgminer options are the same.  Only the operating system is different.

Windows is running AMD 13.1.  Ubuntu is running 12 something.

Is this the solution: Mine with cgminer 2.11.2 on Windows 7 and not on Ubuntu 11.04?

Sam
Driver and SDK versions matter but in a different way to those for bitcoin mining. There is no reason you can't ltc mine the same on linux for 5xxx with the right driver/sdk combo. I'd recommend AMD driver 12.8 with SDK 2.7 for litecoin mining.

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March 16, 2013, 07:45:06 AM
 #8985

i prefer sha-256 coins than the scrypt ones.
2.11.2 version is very nice, quick and stable.
one question though, i am using cgminer to solo mine PPC and i have also an alternative pool (coinotron)
in command line. localhost doesn't support LP but coinotron does so
In cgminer window i see:
"Long-polling activated for localhost:9902 via coinotron.com:8322/LP"
what does this mean? is it good or bad?
may i use only localhost in the command line?
once in a while i see some accepted shares from pool 1 (coinotron), is it normal?
thanks
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March 16, 2013, 08:49:26 AM
 #8986

ok got myself up and running - put a dummy plug on the 5770 and got it running straight away. Thought the dummy plugs were only necessary for Windows - maybe you can get away without them on Ubuntu but for the sake of 3 x 22c resistors and one of the plethora of DVI/VGA convertors I have in the parts bin it finished off 4 days of stuffing around quite quickly.

Although when I first ran cgminer I was getting really bad hash rate, dropped the -g to 1 and 5770 worked and 7950 halved, tried to do "-g 2,1" but errored with "2,1 is not an integer". So running two instances of cgminer - maybe this could be fixed in a future release?

Hash rates disappointing compared to cgminer in windows 7 on identical 5770. So going to abandon Ubuntu for now and try windows 7...

Although I do read that I have been asking for trouble mixing 5XXX and 7XXX cards which may not have helped either.
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March 16, 2013, 08:55:55 AM
 #8987

one question though, i am using cgminer to solo mine PPC and i have also an alternative pool (coinotron)
in command line. localhost doesn't support LP but coinotron does so
Local mining NEVER have LP because you mine ENTIRE block all the time Smiley
Same for every coin.

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March 16, 2013, 09:05:11 AM
 #8988

one question though, i am using cgminer to solo mine PPC and i have also an alternative pool (coinotron)
in command line. localhost doesn't support LP but coinotron does so
Local mining NEVER have LP because you mine ENTIRE block all the time Smiley
Same for every coin.

thanks, i know that, my question was what it means to have LP activated for solo mining via a pool that supports LP
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March 16, 2013, 09:13:39 AM
 #8989

So I figured I'd try getting some LTC as I haven't mined them in ages and I wanted to try it on my new GPU. What are some args and Clocks that would be workable with a 7850? using --scrypt -I 13 -w 256 -g 1 --shaders 1024 right now and getting around 240Kh/s with 1000/1375 clocks. I've heard that pushing past 13 intensity is bad, is this true? If so..I think I can get 340~ Kh/s outta this card.
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March 16, 2013, 10:04:40 AM
 #8990

Try increasing intesity by 1 and see that errors/rejects will happen or not Smiley

1Rav3nkMayCijuhzcYemMiPYsvcaiwHni  Bitcoin stuff on my OneDrive
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March 16, 2013, 11:45:31 AM
 #8991

However -g 1 is now almost mandatory with these higher TCs.

YOU DA MAN!!!! Smiley

Excellent work!!! Smiley
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March 16, 2013, 03:27:00 PM
 #8992

Quote
Driver and SDK versions matter but in a different way to those for bitcoin mining. There is no reason you can't ltc mine the same on linux for 5xxx with the right driver/sdk combo. I'd recommend AMD driver 12.8 with SDK 2.7 for litecoin mining.

Thanks for the tip.  I installed driver 12.8 and SDK 2.7 and now litecoin mining works.

But it still works better in Windows.

Same hardware, cgminer 2.11.2, same cgminer parameters:

Ubuntu 11.04             Ubuntu 11.04            Windows 7
AMD 12.8                  AMD 12.8                  AMD 13.1
SDK 2.7                    SDK 2.7
Intensity 16              Intensity 13                Intensity 16
634 kHash/sec          534 kHash/sec            637 kHash/sec
3 accepted/minute    14 accepted/minute     34 accepted/minute
A lot of HW errors     A lot of HW errors        No HW errors

Should I put AMD 13.1 on linux?  Or should I put Windows 7 on my linux boxes?
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March 16, 2013, 05:02:07 PM
 #8993

Well I figured it out last night, It's best to use no args with 7850 and 13 intensity, Floats around 340~ Kh/s on average and about 8-10 shares per minute. If I use higher intensities the shares per minute goes to shit. (No rejects..just slower shares being accepted) Great work ckolivas, I hope you will work on the scrypt code soon with ASIC's coming soon. I'm sure there's a way to optimize it a wee bit more.
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March 16, 2013, 05:50:58 PM
 #8994

That doesn't turn off dynamic mode.
Yes it does. Set a static intensity (9 is about right for most cards), just like it says.

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March 16, 2013, 08:44:52 PM
Last edit: March 16, 2013, 09:28:14 PM by 420
 #8995

Getting high reject rate in cgminer 2.11.1:

BTC Guild admin says common problem
https://bitcointalk.org/index.php?topic=49417.msg1631802#msg1631802

going to get he latest cgminer

EDIT: I upgraded to cgminer 2.11.2 and my problem is fixed! 0 rejects

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the hacks, the hacks, secure your bits!
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March 16, 2013, 09:50:16 PM
 #8996

Quote
Driver and SDK versions matter but in a different way to those for bitcoin mining. There is no reason you can't ltc mine the same on linux for 5xxx with the right driver/sdk combo. I'd recommend AMD driver 12.8 with SDK 2.7 for litecoin mining.

Thanks for the tip.  I installed driver 12.8 and SDK 2.7 and now litecoin mining works.

But it still works better in Windows.

Same hardware, cgminer 2.11.2, same cgminer parameters:

Ubuntu 11.04             Ubuntu 11.04            Windows 7
AMD 12.8                  AMD 12.8                  AMD 13.1
SDK 2.7                    SDK 2.7
Intensity 16              Intensity 13                Intensity 16
634 kHash/sec          534 kHash/sec            637 kHash/sec
3 accepted/minute    14 accepted/minute     34 accepted/minute
A lot of HW errors     A lot of HW errors        No HW errors

Should I put AMD 13.1 on linux?  Or should I put Windows 7 on my linux boxes?
Pretty sure with the right driver and SDK combo there should be no difference between the  OSes. However win7 does offer some extra options for overclocking/undervolting that many find advantageous for mining, and apart from OS stability, there is no mining performance advantage to linux. It's up to you.

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March 16, 2013, 10:54:09 PM
 #8997

+1.2 btc. Thank you for your work, ckolivas.
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March 16, 2013, 11:43:59 PM
 #8998

On another thread you mentioned 7970 fixes for litecoin.  What version is that ?
-i higher than 13 ?

How is the performance now ?

I got some water cooled cards I want to push a nice OC.

BITWIN.

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March 17, 2013, 12:26:23 AM
 #8999

On another thread you mentioned 7970 fixes for litecoin.  What version is that ?
-i higher than 13 ?

How is the performance now ?

I got some water cooled cards I want to push a nice OC.

Current development code only which you can get if you're building from git, but there's a sample executable linked a few posts back for windows. Next version 2.11.3 will have a few scrypt improvements.

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March 17, 2013, 06:03:47 AM
Last edit: March 21, 2013, 10:38:41 PM by ckolivas
 #9000

New release: 2.11.3, 17th March 2013

Building further on the stability of 2.11 with more bugfixes, and the first significant scrypt update in some time thanks to a surge in its popularity and virtually the first ever donations towards developing and maintaining it since it was first added to cgminer.


Human readable changelog:

- Updated USB detection code by Kano will now show known devices with cgminer -n, and you can manually select devices to mine with using the new --usb option - read the README for full documentation! (Yeah right, no one reads documentation  Tongue)
- Fixes for certain USB communication problems should make them more reliable.
- Workaround for the rare crash on switching pools with stratum with older libcurl builds.
- Adding a pool now from the menu will return quickly while it leaves probing it to the background.
- Internal improvements in scalability in preparation for ASIC devices (must be close now? Roll Eyes)
- Changes to the hashmeter to update it more frequently - for fast devices it will update smoother but for long-return devices (like slow FPGAs) it will look worse. This is in preparation for faster devices...
- Scrypt updates:
 Fixed the failure to create high thread concurrencies.
 Intensities above 13 will not lead to garbage being generated on GCN (7xxx) hardware now.
 Decreased default GPU threads to 1. Intensities above 13 cannot handle more.
 Changed the default choice of thread concurrency if no options are passed to cgminer as a hint, based on amount of available GPU ram.
 Scrypt mining now shows the Work Utility as BTC mining does (total amount of diff 1 work done per minute).
 Extensive updates to the SCRYPT-README file in line with changes to the code and new information (but no one reads documentation anyway Tongue)


Full changelog:

- Update the hashmeter at most 5 times per second.
- Usbutils use its own internal read buffer
- Calculate work utility for devices that support target diffs of greater than
1, and update scrypt code to use it.
- usbutils allow read termination match to be a string
- Set default GPU threads to 1 for scrypt.
- Connect backup stratum pools if the primary pool cannot deliver work.
- Use a new algorithm for choosing a thread concurrency when none or no shader
value is specified for scrypt.
- Do not round up the bufsize to the maximum allocable with scrypt.
- Remove the rounding-up of the scrypt padbuffer which was not effectual and
counter-productive on devices with lots of ram, limiting thread concurrencies
and intensities.
- bufsize is an unsigned integer, make it so for debug.
- Update the hashmeter once per second but only display the extra logs every
opt_log_inteval.
- add a dummy ztex to usbutils so cgminer -n lists ztex also
- nDevs required for -n with usb
- USB device list - convert some common error numbers to messages
- USB -n 'known' text only without ---usb-list-all
- USB modify -n and --usb-dump to only show known devices or use new
--usb-list-all option to see all
- Make pool adding while running asynchronous, using the pool test thread
functionality.
- Only curl easy cleanup a stratum curl if it exists.
- Sacrifice the ram of curl handles in stratum disconnects when we have built
with old libcurl to avoid crashes.
- cgminer -n to include a USB device list
- usbutils allow call of usb_all() from other code
- Convert gbt_lock to a cg_lock.
- Add intermediate variants of cglocks that can be up or downgraded to read or
write locks and use them for stratum work generation.
- Move the stratum and GBT data to be protected under a new cg_lock data_lock.
- Convert the ch_lock to cg_lock.
- Convert the control_lock to a cg_lock.
- Remove unused qd_lock.
- Implement cg_lock write biased rwlocks.
- do usb_initialise() after the started message so we see it
- --usb-dump display brief dump if value = 0
- USB add --usb options to limit USB device selection v0.1

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