OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.11.1

[Marrs]

Quite a simple question. What is the way to configure and run cgminer so that gpu 0 will work with pool 0 and gpu 1 with pool 1, but not both gpus with the same pool? Preferably command line configuration.

If your hardware supports IOMMU, you could theoretically create two Xen VMs, assign a single gpu to each VM, and run cgminer in each VM with separate pool addresses.

Google it if you care enough to try it, but it's probably more trouble than it's worth. ;-)

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[Richy_T]

I think you can run multiple instances of cgminer and have a different pool for each. Just disable whatever GPU is supposed to be going to the other pool.

Or you could do what I do when I need to mine a little on another pool for whatever reason, disable the GPU and run the miner directly.

[itsjustme]

additionally: cgminer "freezes" (cannot even quit it with Q, have to close the windows clicking on the X) once I switch users on windows 8

Don't switch users.  Or if you do stop CGMiner and then reopen it in the other user account.

ouch, can't do this at all

no way around this?

I've never used Win8.  But in WinXP/7 when you switch users the background user looses access to the GPU since the foreground desktop has it.

Search through this thread and you'll see it talked about several times.

poclbm can handle it properly: it keeps mining even when i'm logged in with different users :|
is there a way to achieve the same using cgminer? :/

[belcat]

i have a problem with my gigabyte 7950 rig. clocked at 1150/1400 i get about 610 kH/s (LTC) -> thats ok! the problem is the generated heat of the first one in the main pcie slot. while at all other 7950's the fans spins with about 2200 rpm to hold a target of 75°C, the first one runs with 3600 rpm (100%) and can't get below 77°C. same happens, when i use a card from another slot.
any ideas?

Are you saying whatever card is in the first slot gets hotter?  I had problems with the cards running hot, so I stuck a small fan to blow right on the card (at the back of the computer, blowing air 90 degrees from the MB).  The air it blows ends up in the front part of the case where it leaves.  The fan is about 12" in size and blows more air than typical case fans, but is not much noisier than such, just something from the local department store.  It dropped the temperature of one card that could barely cool itself (fan runs almost on max) by 8C and now I don't hear this jet engine sound  .  Also means the tower has no side panel... but oh well.

[cimpex]

Are you saying whatever card is in the first slot gets hotter?

exactly

[-ck]

additionally: cgminer "freezes" (cannot even quit it with Q, have to close the windows clicking on the X) once I switch users on windows 8

Don't switch users.  Or if you do stop CGMiner and then reopen it in the other user account.

ouch, can't do this at all

no way around this?

I've never used Win8.  But in WinXP/7 when you switch users the background user looses access to the GPU since the foreground desktop has it.

Search through this thread and you'll see it talked about several times.

poclbm can handle it properly: it keeps mining even when i'm logged in with different users :|
is there a way to achieve the same using cgminer? :/

poclbm doesn't monitor temperature and fanspeeds, that's why it can do it. Feel free to disable the monitoring for it to work with --no-adl

[kano]

Quite a simple question. What is the way to configure and run cgminer so that gpu 0 will work with pool 0 and gpu 1 with pool 1, but not both gpus with the same pool? Preferably command line configuration.

If your hardware supports IOMMU, you could theoretically create two Xen VMs, assign a single gpu to each VM, and run cgminer in each VM with separate pool addresses.

Google it if you care enough to try it, but it's probably more trouble than it's worth. ;-)

Run 2 copies of cgminer with -d ...

[-ck]

Here's an interesting data point. Since my server went down for a few days, there were stats on the direct download links that JWU42 kindly put up showing quite a few downloads so I thought I should check how many downloads my server was getting. It turns out that version 2.11.4 alone (in its various forms) has had 80,000 downloads and 80% of those were for the windows binary.

[pekv2]

I like linux n everything but windows is just the OS to use, imo and to my preference, it does it all plus better support on all things, e.g. palemoon x64 is not made for linux, amd drivers imo are horrible under linux. Some might disagree but I understand that unix users love their os too. Windows7 x64 for me for a long time.

[-ck]

Oh I'm not surprised windows is the more common download. It also doesn't take into account people getting cgminer from elsewhere as it is in linux distribution repositories that don't need to necessarily download from my server, and people getting source from git, so I think 80% is an overestimate for windows. Windows does have certain advantages with other overclocking tools etc. while linux has other advantages (as I've said in the FAQ too). My main point was to show how much it's being downloaded now and the rate of rise is quite dramatic of late, explaining why we're supporting all the same questions from scratch again that we've been answering for almost 2 years now.

[Richy_T]

My mining machine is my gaming machine otherwise I'd be Linux 100%

[Lampitosgames]

I have a question (BTW, thanks for keeping cgminer updated, you are a hero :3)
Just got my new 7870, and the mining hardware charts on the wiki here: https://en.bitcoin.it/wiki/Mining_Hardware_Comparison
shows that hash rates can be from about 480-520, and I'm getting ~420 hash rate.

My settings: -o http://btcguild.com:8332 -u <my username> -p <my password> --gpu-memclock 1000-1300 -I 9 --gpu-engine 1100-1200 --temp-overheat 85 --temp-target 80

is there something I'm doing wrong here?  I would really like to see another 60-100 hashes/s out of it, because my old card (that I didn't get for mining) hashed at that rate, lol.  What settings should I change?  How could I improve here?  It is a dedicated server, so I literally NEVER use the GPU for anything BUT mining.  Help would be appreciated, no hurry though, this is not an emergency as it is working

[kano]

SCRYPT-README

[odee2004]

Hi,

Sorry if this question has been answered before but cgminer 2.11.4 is not working with slush pool stratum url ipv6.stratum.bitcoin.cz:3333. It gives me this error:

 [2013-04-17 10:11:48] Pool 0 slow/down or URL or credentials invalid
 [2013-04-17 10:12:48] No servers were found that could be used to get work from
.
 [2013-04-17 10:12:48] Please check the details from the list below of the serve
rs you have input

this is my command btw,

cgminer -o ipv6.stratum.bitcoin.cz:3333 -u USERNAME -p PASSWORD

[os2sam]

My settings: -o http://btcguild.com:8332 -u <my username> -p <my password> --gpu-memclock 1000-1300 -I 9 --gpu-engine 1100-1200 --temp-overheat 85 --temp-target 80

I think you need --auto-gpu before your engine speeds so that it will adjust them.

Also I've never seen a range for memclock.  I would set it to the lower clock speed.  At least that is the way I interpret this statement

--gpu-memclock <arg> Set the GPU memory (over)clock in Mhz - one value for all or separate by commas for per card.

Edit: I would throw --auto-fan in there too

[Richy_T]

How to auto-fan and auto-gpu interract? I'd rather run up the fan than drop the clock speed so I have been using only auto-fan but I'm wondering if that's the best way or not.

[-ck]

How to auto-fan and auto-gpu interract? I'd rather run up the fan than drop the clock speed so I have been using only auto-fan but I'm wondering if that's the best way or not.

README

[FreedomCoin]

it seems that CGminer is splitting the load between my two cards so running each one at half speed. When i run one GPU at a time with the -d command i can get my left video card to run full speed.  But when i try to run them together the feedback states the mhash but when ending a session i see it was just split between the two cards.. When i try -d 0 and or -d 1 only my left card seems to want to work, and crossfire is not enabled.

This is on an Alienware M17xR2 Laptop with two 5800 Junipers, they should be running at about 185 mhash each

 See pics in link. my output is:

Code:

./cgminer -o stratum.ozco.in:80 -u user -p pass -I 8 -d 0 -o stratum.ozco.in:80 -u user -p pass -I 8 -d 1  --gpu-engine 820,820 --gpu-memclock 1000,1000 --temp-target 80,80 --temp-overheat 90,90 

See screenshots...

No support for this issue?

[zamazama]

I'm having a problem on a clean windows 7 install, mining using 2 Radeon cards.

Whenever I quit CGMiner the system reboots. 

[tiktoc]

it seems that CGminer is splitting the load between my two cards so running each one at half speed. When i run one GPU at a time with the -d command i can get my left video card to run full speed.  But when i try to run them together the feedback states the mhash but when ending a session i see it was just split between the two cards.. When i try -d 0 and or -d 1 only my left card seems to want to work, and crossfire is not enabled.

This is on an Alienware M17xR2 Laptop with two 5800 Junipers, they should be running at about 185 mhash each

Doesnt that model have dual ATI Mobility Radeon HD 4870 in it?

If so then the speeds are nearly dead on according to this https://en.bitcoin.it/wiki/Mining_hardware_comparison