CGMiner arguments -g, -w and -I
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I’m unsure if this goes in the newb section or mining section so I’m so sorry if I’m the wrong place.
The case is that I’ve been tinkering with cgminer the last couple of days, and there is some params that I don’t understand-ish.
-I
As I understand it I is for intensity, where higher is better unless you strangle your GPU. I have a 290 card from Sapphire, and tried a bunch of different intensity, ended up with 19… but there is a lot of people recommending 13.-w
I don’t know what this is. It refers to the chunks of memory it should work with? Mine is at 256, but 512 is also usable?-g
I don’t know what this one is either, would really love it if someone could care to explain. Mine is set to 2, but it is totally random. I’ve seen it been set to both 1 and 2, whats the difference?In advance thank you for your reply!.
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On your card you should use -w 512
the intensity is 13 for the HD7xxx series because of HW errors, on the new series higher could work fine
the -g stands for gpu threads, just test to see wich yields higher results.You can see basic settings and hash rates on the following page:
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Thank you for your reply aatje92!
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The worksize mean bit wide, I think 7950 or 7970 card set up --worksize 384 , 7870 card set up --worksize 256.
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I use multiple setups for the R9 290 cards but the only difference in the intensity and hash rate. Here is my data.
–scrypt -o [pool url] -u [worker] -p [pass] --gpu-platform 0 -d 0 -w 512 -v 1 -g 1 -l 1 --thread-concurrency 24550
Then:
-I 12 =250 kh/s I use this when I am running 3d using games with cgminer in the background
-I 14 =600 kh/s I use this as my normal whenever the computer is actually in use. Like right now.
-I 20 =850 kh/s This is for when the computer is idle and doing nothing but mining.Note that I use the default memory and gpu speeds, but using the newest AMD driver I set the power to 20 and the max fan speed to 80%.
Hope this helps
