Bitcoin Forum

Hey guys, so sorry that my first post on the forums is due to a problem I'm having but I'm pretty stumped :/

So I have the 2012-11-18 version of guiminer and I'd like to mine on my gtx480 in the BTC Guild (using the US-Stratum server). All my video card drivers are up to date. When I attempt to mine with the default setting (CPU Affinity left all blank except for the first core) and the correct username, etc. I get "NameError: name 'OpenCLMiner' is not defined" in the lower left corner and am continually stuck at "Starting..." on the right corner.
When I make a new CUDA miner (I downloaded CUDA from Nvidia this morning as well), I keep all the setting the same, but when I click "Start mining!" nothing happens at all. The button is depressed, but the status at the bottom right still reads "Stopped" and I see no change in the window.

I've searched a bit about the the NameError (though I obviously still couldn't solve the issue), but haven't really been able to find anything about the CUDA miner issue. Any help would be greatly appreciated!

Yeah, from what I've read my GPU driver should include OpenCL compatibility so I figured updating that would solve the issue. Apparently not.
I've generally associated OpenCL with ATI cards and CUDA with nVidia cards which is why I thought the CUDA Miner may be the way to go. Unfortunately, that was problematic as well.
Let me know if you find a fix for the issue!

I'm not much of a mining hardware/software expert. I posted your question in the "Mining Support" thread.  Hopefully someone there will see it and respond here.

https://bitcointalk.org/index.php?topic=187134.0

You may/may not be my new hero. Seriously, thank you so much for linking my thread in the other subforum! If there was a way to give you rep/karma/a virtual cookie, rest assured I'd be all over that.

Edit: So I got cgminer to work without a problem (well, aside from the fact that downloading it was a pain due to a crappy ISP). Personally, I think it would be better for me to use guiminer since I really don't know much of what I'm looking at in cgminer, but this certainly reduces the urgency of my search for a guiminer fix.

Maybe you have to set the path to external application in guiminer? Is there a command line miner exist called CUDA miner? Or is it inbuilt to the guiminer?

Hm that seems like it'd be an odd requirement to not be mentioned in the program itself doesn't it? The CUDA miner option is built in to the interface of guiminer, it's legitimately under File, New Miner.

Get the latest version of guiminer to ensure stratum support.

K.

Aw shucks, is that what it comes down to?
I downloaded the version directly from BTC guild so it says it has stratum support (and that is the server I selected from the drop down list).
I'll look around for an updated version though, thanks.

What is the new version?

That's your problem then, no need to get a newer version (it is the new version), just follow these instructions:

From their site below the download:

WARNING: GUI Miner's official release has still not updated BTC Guild's server listing. If you downloaded it elsewhere, use 'Other' with Host stratum.btcguild.com and port 3333, or eu-stratum.btcguild.com for EU. Failure to do this will put you on the getwork protocol which is not recommended.

K.

sorry to be a bit off topic, but which pool is better to join, btc guild or slush's? and is it worth mining if i can only get like 86 Mhash/s?

Err, unless I'm reading that wrong, that warning is just for if you've downloaded guiminer from another source. It doesn't say anything about the version you get directly from them. Regardless, I actually tried both their version and the official version when I read that on the BTC guild site. It still didn't work unfortunately.  

Damn, then i'm all out of suggestions - hopefully an expert will spot this and lend a hand.

K.

Haha, it's alright thanks for your suggestions!
Now that I'm mining anyway I'm a bit less pressed for help anyway :)

newb here myself... But i bought 2  nvidia gfx cards that didnt work for guiminer, but they did work when i use CUDA, it was the cmd version, but it did work, altho they barely seemed to get over 20 khs... Switched to an amd/ati 7770 now im at 140-160 khs. just seems that nvidia isnt made to mine high numbers, nor on GUIminer. not sure if it helps in your situation. But try the cmd version of CUDA Miner...

Didn't notice your question.

I'm a slow miner as well, and much prefer Slush's pool, as an added bonus miners get block value + transaction fees (every little helps).

K.

Try reaper, it's a lot simpler and sometimes gives better performance! :)

I'm using guiminer on a dual GTX480 system pushing around 120MHash/s to a stratum server.  Guiminer is just a wrapper for poclbm (PyOpenCL bitcoin miner).  All new Nvidia drivers include OpenCL support for their CUDA cards, so create a new OpenCL miner -- not a CUDA miner.  If your GTX480 doesn't automatically show up in the Device box, then you need to download new GTX480 drivers.  If you have multiple 480's, you should see them all with the Device box pulldown.

My vote is for slush's pool.  Fee is only 2% (lower than BTC Guild and 50BCT) plus you get a share of the transaction fees -- even more important, you get great support.

I started mining with BTC Guild recently and I'm going back to slushs pool.

I thought I would give it 2 days and see what I did better with, def slushs.

the guiminer only come with poclbm, it is like a command line invoker. it knows the command line for other miners, but to use them , you have to download them yourself.
the default path is \guiminer\miners\puddinpop\rpcminer-cuda.exe. you have to look for rpcminer cuda on the internet yourself.

do you guys mine 24/7? i'm new to this so i'm unsure of what i should be doing. should my computer be slowing down to a point where i can't even watch a video, limiting me to mine during nights only?

I do. But on a second computer. But I guess if you want to watch videos, maybe lower the intensity level or something...?