FOUND: litecoin config file tune for 5830's

[pandemic]

I've updated the OP with what I've found to be an efficient config file. I'm running twin 5830's with 4gb of ram on this machine. I've got CCC 11.12, 2.6 SDK I think ( ) and cgminer 2.11.3.

The config file can be further modified for increased speeds. This gets about 260kh/s per card. The reason it's not balls to the walls fast is because of cooling. With summer coming up I may stop it entirely but for now this is staying in the manageable range. tinkering with the clocks for gpu/memory would be best to increase speeds. I hope it helps!

This is the config file I'm using:

    {    "pools" : [           
            {                   
                    "url" : "http://newlc.ozco.in:9332",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "http://newlc.ozco.in:80",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "backuppool",
                    "user" : "username.workername",
                    "pass" : "pass"
            }
                      ],
    "kernel" : "scrypt",
    "scrypt" : true,
    "gpu-threads" : "1",
    "thread-concurrency" : "8000",
    "lookup-gap" : "2",
    "intensity" : "18",
    "gpu-engine" : "0-500,0-500",
    "gpu-memclock" : "1000,1000",
    "temp-cutoff" : "95,95",
    "temp-overheat" : "85,85",
    "temp-target" : "77,77",
    "gpu-fan" : "0-100,0-100",
    "auto-fan" : true,
    "auto-gpu" : true,
    "vectors" : "1",
    "worksize" : "256"
    }

[xorxor]

1. change :gpu - 890mhz , mem 890mhz, intensity 19 ,

2. stay out of 12.10 driver. 13.1 is cool

3 delete *.bin files in cgminer folder

4. install cgminer 2.11.3

290+ kh guaranteed

 

[pandemic]

    {
    "pools" : [
               "url" : "newlc.ozco.in:9332",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "newlc.ozco.in:80",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "backuppool",
                    "user" : "username.workername",
                    "pass" : "pass"
            }
    ],
     
    "kernel" : "scrypt",
"scrypt" : true,

    "intensity" : "13",
"thread-concurrency" : "8000",
    "gpu-engine" : "0-890,0-890",
    "gpu-fan" : "0-100,0-100",
    "gpu-memclock" : "890,890",
    "temp-cutoff" : "95,95",
    "temp-overheat" : "85,85",
    "temp-target" : "75,75",
"gpu-threads" : "2",
"lookup-gap" : "2",

     
    "auto-fan" : true,
    "auto-gpu" : true,
    "vectors" : "1",
    "worksize" : "256"
    }

While running cgminer 2.11.3, when I run this cgminer just opens for a blink of an eye and then closes again. (o.O)

[pandemic]

just wanted to bump this up. The only thing I can think of is that I'm running CCC 11.9 or something I think.

[pandemic]

I'm also running CCC 11.12

[xorxor]

install 13.1 drivers and 2.7 sdk

[pandemic]

any idea how 13.1 and 2.7sdk will affect bitcoin mining?

[Clearfly]

Try:

gpu-threads: 1
thread-concurrency: 1024
and ramp up in sums of 64 until cgminer crashes (thats ur limit) eg 2048, 3072, 4096....

Make sure you got at least 2GB ram.

[xorxor]

ignore in-file config, its great but has different commands and no support on forums. use command line instead.

cgminer.exe --scrypt -o http://newlc.ozco.in:9332 -u xxxx -p xxxxx   --thread-concurrency 8000 -I 19 -g 1 -w 256

concurency 6144 and 7200 are acceptable for low ram systems. if 2gb+ use 8000 for best results. intensity below 17 is nonsense.

try other software for clocking and cooler controll. in windows trixx for single card, afterburner for multiple.

[pandemic]

cgminer.exe --scrypt -o http://newlc.ozco.in:9332 -u xxxx -p xxxxx   --thread-concurrency 8000 -I 19 -g 1 -w 256

that seems to work way better. Best so far. GPU0 and 1 are at about 90-98kh/s


found a clue for the config file issue:

JSON decode of file 'cgminerLTC.conf' failed  ']' expected near ':'


I can find nothing in the code that looks out of place.

may just start a new config file, things are getting pretty whack.

[pandemic]

Been working on it for a while, I may have just hit paydirt:


    {
    "pools" : [
            {
                    "url" :

"http://newlc.ozco.in:9332",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" :

"http://newlc.ozco.in:80",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "backuppool",
                    "user" : "username.workername",
                    "pass" : "pass"
            }
    ],
    "kernel" : "scrypt",
    "scrypt" : true,
"gpu-threads" : "1",
"thread-concurrency" : "8000",
"lookup-gap" : "2",
"gpu-threads" : "1",
    
    "intensity" : "19",
    "gpu-engine" : "0-800,0-800",
    "gpu-memclock" : "800,800",
    "temp-cutoff" : "95,95",
    "temp-overheat" : "85,85",
    "temp-target" : "78,78",
    "gpu-fan" : "0-100,0-100",
    "auto-fan" : true,
    "auto-gpu" : true,
    "vectors" : "1",
    "worksize" : "256"
    }



I'm getting about 265kh/s from that with no real tweaking yet.

[pandemic]

jeeze, with so much memory usage, these coins mine HOT

[pandemic]

    {    "pools" : [           
            {                   
                    "url" : "http://newlc.ozco.in:9332",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "http://newlc.ozco.in:80",
                    "user" : "xxxx",
                    "pass" : "xxxx"
            },
            {
                    "url" : "backuppool",
                    "user" : "username.workername",
                    "pass" : "pass"
            }
                      ],
    "kernel" : "scrypt",
    "scrypt" : true,
    "gpu-threads" : "1",
    "thread-concurrency" : "8000",
    "lookup-gap" : "2",
    "intensity" : "18",
    "gpu-engine" : "0-500,0-500",
    "gpu-memclock" : "1000,1000",
    "temp-cutoff" : "95,95",
    "temp-overheat" : "85,85",
    "temp-target" : "77,77",
    "gpu-fan" : "0-100,0-100",
    "auto-fan" : true,
    "auto-gpu" : true,
    "vectors" : "1",
    "worksize" : "256"
    }


I'm pretty happy with this setup. I'm consistently getting about 265kh/s. I could try to get faster but the heat is going to be too much for my cards, I fear. I did hit about 330kh/s at times with tinkering but with those settings I'd be running the fans at 100% the entire time.

I am getting a lot of rejected shares after found blocks.

[pandemic]

I'm actually getting about 1 rejected share for every 3 accepted... is this normal? (o.O)