Topic: [ANN] cudaMiner & ccMiner CUDA based mining applications [Windows/Linux/MacOSX] - page 1109. (Read 3426947 times)

@dbabo
Try this:
in salsa_kernel.cu find line:
and change it to

On my setup it doesn't help much, as most cpu time is spent in sha256_transformx4 function, but it may help on your setup.

I like EVGA Precision X personally.

actually you are right - it does say the process is sleeping... but taking 100% CPU %)

What are the best tools to overclock Kepler based GPUs? that MSI AfterBurner tool sucks

Huh, were did my response go?  Well, let's type it again:

I also noticed the effect that on Linux, one thread will continually eat 100% on a single CPU core. I believe Linux defines 100% CPU utilization as full load on one core. i.e. a 6 core CPU can go up to 100%. This effect does not occur on windows.

As an example: My desktop PC is mining on 4 GPUs at 500kHash and is currently using 30-40% CPU for cudaMiner (Phenom II 1055T CPU, not the fastest one really). I believe most of this load is actually caused by submitting input data to the GPU (SHA-256) and also hashing GPU results again before validating them against the difficulty target.

I suspect on Linux there is one thread that continually pegs the CPU - either within the CUDA API, or possibly the usleep() API call that does some kind of busy wait when sleeping for sub-millisecond time intervals.

If someone knows what is going on, please let me know.

Christian

Arg finally got this to work. Its funny when you do read the read me, tells you all the flags and stuff... but never tells you how to modify. Finally I made a shortcut and then added all the info I needed to into it and walla... its working 2x faster with heck less lag as cgminer did. Now to find some good settings for the 660/540/250.

Christian,
 I'm looking @ htop and not sure i completely understand it:
why is it 98% CPU utilization?

hmmm... my clock's are almost identical to yours but I do not see much if any fluctuation of load, just flat lined pegged out i guess that is the difference.

i see no issue with temps on my card, fan is not working hard ~40% and temp steady 62c power consumption ~80% all numbers flat and steady without fluctuation.

curious if anyone has any success with OC... i have tried to OC my card and i get good performance increases for gaming (stable OC as far as temps and such) but oddly my hashing dips slightly... weird

EDIT
I have also used this setting and get almost 180 but the 42x7 pushed me over

I have an EVGA 660Ti "SC" (Superclocked, meaning a slight factory overclock), it has 3 GB memory.

Right now it runs at core clock 1097.4, memory clock 1502.3. TDP around 99.6% doing hashing.

Interestingly, the GPU load seems to oscillate between 85 and 99%. which is where I might be losing
some performance.

Maybe it's a TDP or temperature issue and the GPU clocks down or idles when needed?

Mine currently runs fastest with-i 0  -l 70x2 -C 2

There is also a principal issue with autotune, as the card may dynamically adjust its clock speed to meet TDP requirements, therefore interfering with the accuracy of the measurements. Argh.

Christian

curious, what are you running your 660 ti at, stock? also what clocks etc. if you are stock settings, model? I ask because without the beta driver and your unrelease optimized version (i am using the 4/22) i am getting +180 with my msi 660 ti pe at stock no OC. i am using flags -i 0 -C 2 -l 42x7

thx

@yakka: In the README there is some documentation on what arguments do. There's even an example...

Link goes to gid 1 by default, Would you change it to 2 because it better organized?

https://docs.google.com/spreadsheet/ccc?key=0AjMqJzI7_dCvdG9fZFN1Vjd0WkFOZmtlejltd0JXbmc#gid=2

Spreadsheet is now linked on first post.

Find my setting for gtx 670, 174kh/s
Flags/setting can be found from.
https://docs.google.com/spreadsheet/ccc?key=0AjMqJzI7_dCvdG9fZFN1Vjd0WkFOZmtlejltd0JXbmc#gid=2

Edit: cbuchner1 please add this link to your starting post.

cudaMiner is for scrypt based mining only. bitcoin is sha256d

cudaminer do not work on triplemining.com???

The 320.00 beta driver really made my GTX 660Ti slightly faster. With my current experimental cudaminer version (unreleased) I reach 168-171 kHash/s (slightly varying over time). Before the driver update it was around 160.

The command line settings are explained in the README.txt file. README as in read me.

If you are not familiar with the command prompt (CMD.exe), I suggest you wait until my miner becomes included in some GUI based mining kits. It shouldn't take long before such solutions will be available.

Sorry, I'm a GUI noob.  How do I use this, any setup instructions? cmd line settings? flags?  I have a 670GTX card.

I have MSI 660 ti pe running stock.

I am using the 4/22 build and the following flags < -i 0 -C 2 -l 42x7 >

           *** CudaMiner for nVidia GPUs by Christian Buchner ***
                     This is version 2013-04-22 (alpha)
        based on pooler-cpuminer 2.2.3 (c) 2010 Jeff Garzik, 2012 pooler
               Cuda additions Copyright 2013 Christian Buchner
           My donation address: LKS1WDKGED647msBQfLBHV3Ls8sveGncnm

[2013-04-24 21:56:45] 1 miner threads started, using 'scrypt' algorithm.
[2013-04-24 21:56:45] Long-polling activated for http://127.0.0.1:8332/lp
[2013-04-24 21:56:45] GPU #0: GeForce GTX 660 Ti with compute capability 3.0
[2013-04-24 21:56:45] GPU #0: interactive: 0, tex-cache: 2D, single-alloc: 1
[2013-04-24 21:56:45] GPU #0: using launch configuration  42x7
[2013-04-24 21:56:45] GPU #0: GeForce GTX 660 Ti, 9408 hashes, 67.01 khash/s
[2013-04-24 21:56:48] GPU #0: GeForce GTX 660 Ti, 573888 hashes, 176.02 khash/s
[2013-04-24 21:56:48] accepted: 1/1 (100.00%), 176.02 khash/s (yay!!!)
[2013-04-24 21:57:03] GPU #0: GeForce GTX 660 Ti, 2671872 hashes, 179.91 khash/s

[2013-04-24 21:57:04] accepted: 2/2 (100.00%), 179.91 khash/s (yay!!!)
[2013-04-24 21:57:11] GPU #0: GeForce GTX 660 Ti, 1430016 hashes, 179.74 khash/s

[2013-04-24 21:57:12] accepted: 3/3 (100.00%), 179.74 khash/s (yay!!!)
[2013-04-24 21:57:45] GPU #0: GeForce GTX 660 Ti, 6115200 hashes, 180.31 khash/s

[2013-04-24 21:58:03] GPU #0: GeForce GTX 660 Ti, 3226944 hashes, 180.03 khash/s

[2013-04-24 21:58:03] accepted: 4/4 (100.00%), 180.03 khash/s (yay!!!)


After it stabalizes I maintain +180 KH/s although the pool stats show higher for some reason...