Topic: OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.11.0 - page 361. (Read 5806057 times)

curses ...

It says:
 [2013-04-25 23:06:14] Stratum conne (plus whatever you chopped off)
Shut down signal received.

no

One of the limiting factors for Litecoin mining speed is the amount of memory that can be allocated by the OpenCL process. Currently, there is a limitation that OpenCL processes can allocate a maximum of 2GB. That limitation is slated to be removed in the next release of the APP SDK: http://devgurus.amd.com/thread/166292

That means, at least in theory, that anyone with a GPU that has more than 2GB per core should be able to raise their combination of thead-concurrency and gpu-threads to fill up even more GPU memory, possibly resulting in higher hash rates.

Does cgminer impose any limits on the amount of OpenCL memory it tries to allocate, or does it just pass the parameters to the SDK?

Just updated to version 3.0.1 my 7970 runs fine but my 5770 just gives error.
invalid nonce - HW error.

I'm using ccc version 13.4 on windows 7 64bit.

When stopping cgminer there are some garbage characters at the end:
I suspect that this only happens with stratum pools.
Other than that cgminer is working fine. No problems.

That's what I get for not reading.

I  did and this is what "scrypt...............: Enabled"  means

Don't you have to build it to include scrypt?

has something changed?

cgminer 3.0.1
fresh from github, compiles fine and


if I run


I get :

 

Hello Folks,

I'm running cgminer 3.0.1 on Ubuntu 12.04 with AMD APP SDK 2.4.  I'm using whatever proprietary driver installs by default with either a 5450 or 6850 video card.

I have in the recent past been able to successfully use the 5450 and the above software with Slush's pool.  Although rather unimpressive at a doddering 10MHash/S, this setup does indeed work.  However, when i try this with the 6850 I have problems.

The basic problem is that although cgminer says the 6850 is humping along at about 190 MHash/S, neither Slush's pool or 50btc report any shares returned.  If I turn on debug mode while cgminer is executing, every few minutes I will see the following sequence of messages: "GPU 0 found something?" then "OCL NONCE nnnnnnnnnnnnn found in slot 0" then "GPU0 invalid nonce" and finally "Discarded cloned or rolled work."  I've been attempting to study the source code myself and have found where these messages are coming from, but do not presently understand the code well enough to solve my problem.

Although I saw the "invalid nonce" message long ago, I was hoping that given the bazillions of hashes that are being calculated, surely a handful of hardware errors would be of no concern.  However, I've since amended my guess such that this error sequence occurs when I should have a share ready to report, but something about it flunks a test, due to a hardware error.  Hence the entire share is no good and thus nothing is ever reported back to the pools I'm using.

Any insight about this would be greatly appreciated.

--shaders is just a hint to tune the program, it has no effect on the GPU. There is some advanced code to partition GPUs with OpenCL to do different tasks, but that is way beyond the scope of what we do with mining, and does not partition some shaders off as such. Mining both concurrently will likely produce lower results than the sum of each at half or at best, just equalling the sum of the halves. I suspect scrypt will kill the btc mining as well so you'll get very unbalanced work in favour of scrypt.

Summary, don't waste your time. Mine one or the other.

I'll defer to "the man" for that question, methinks.  lol

Thanks. Makes sense.

Any idea about the shaders? I assume it's impossible to target specific groups of shaders and the option is simply for configuration, but I wanted to confirm.

I asked ck yesterday about running two instances from two different directories and he said:

Fine to run two. Just use --remove-disabled as well as -d so both instances
dont try to fight over GPUs.

Thanks

Can you help me figure out what is wrong when I try to use 3.0.1? It is specific to this new version because 2.11.4 is still working. I am on Windows 7 x64 with all the updates and I have a 6970 in it.




Thank you!

--remove-disabled

Remove it from your Xorg configuration if you use Linux.

I have a dual 5970 rig but 1 of the 4 GPU's is no good (GPU0)

I use -d 1 -d 2 -d 3 in my command line but when I start cgminer is seems to turn gpu0 on and off a couple of times before finally disabling it and during this cycling the system sometimes crashes.

Is there an alternative way to stop it being used ?

Just installed 13.4 and I am getting a very strange behavior.
I am in windows 7 64bit
I am starting the program with the flags, fans spin and so on, mining seems to work however I am not seeing anything in the command prompt window - it is totally blank!
Has anyone encountered something similar?