Topic: FOUND: litecoin config file tune for 5830's (Read 2332 times)

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

    {    "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.

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

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.

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.

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.

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.

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

install 13.1 drivers and 2.7 sdk

I'm also running CCC 11.12

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.

    {
    "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)

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

 

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"
    }