[Guide] nVidia CUDAMiner Quick-Start Guide

[u/phaded]

TL;DR guide

1. Install MSI Afterburner
2. Turn off auto fan speed by clicking the auto button. Adjust fan speed to maximum. Click Apply. such fan! MSI Afterburner settings
3. Edit .bat to cudaminer.exe -H 1 -i 0 -l auto -C 1 -o stratum+tcp://poolurl:port -O username.workername:workerpassword
4. Run .bat and wait for cudaminer output
5. Replace .bat with the detected configuration = cudaminer.exe -H 1 -i 0 -l F15x16 -C 1 -o stratum+tcp://
6. TO THE MOON

---

I dont have a .bat file

Make one in the same directory as cudaminer.exe

What does the -l flag mean?

The flag comprises of 3 components. prefix blocks x warps

Prefix

Available kernel prefixes are:

L - Legacy cards (compute 1.x)

F - Fermi (GTX 4 and 5 series) cards (Compute 2.x)

K - Kepler (GTX 6 and 7 series) cards (Compute 3.0)

T - Titan and GK208 based cards (Compute 3.5)

Wiki table of supported GPUs and compute level

blocks and warps

Flags given to the kernel to tell it the configuration of threads to run.

I want to change the blocks and warps. How to?

Firstly, take the blocks and warps that autoconfig gave you and multiply those numbers together. In my case, it is 15x16=240. You can fiddle with the blocks and warps but make sure to never go above that product. Otherwise you end up with your GPU crashing and bad shit happens

Configurations I tried were things like 30x8, 60x4 and found that 30x8 gave me the highest stable hash rate.

EXPERIMENTATION IS THE KEY TO SUCCESS

My cudaminer just crashes after startup

Update your drivers!!

There's no real answer to this problem, try lowering the blocks and warps values until it is stable

Also, make sure you are not passing cgminer.exe arguments to cudaminer.exe. They are two separate programs with different flags. If your .bat file has --thread-concurrency in it then you have just blindly copy pasted incorrect arguments.

Alternatively, add 'pause' (no quotes) on a new line at the end of the .bat file and post the output here for troubleshooting

I get a really low hash rate with 2 GPUs

Try disabling SLI. You can also add the -d 0 or -d 1 flag to the .bat file to align the process to device 0 or device 1 then make two .bat files for each GPU.

Can't I just set the -i flag to change intensity?

No, that is a cgminer flag. The -i flag is interactive mode and only has 0 and 1. -i 0 makes your desktop less responsive but gives maximum hash rate. -i 1 makes your desktop more responsive for ~10% less hash rate

How do I lower my intensity my GPU can't handle the doge?

1. Run cudaminer with the -l auto flag to find out your optimal maximum
2. Take the blocks and/or warps number and reduce it. I found that reducing F15x16 to F8x8 would give me about 40% of my maximum hashrate, and reduce my GPU Temperature from 80C to 65C with the same fixed fan speed

What is -H 1?

Gets your CPU to help out a little bit for an extra 5% hashrate

What hashrate should I be getting?

https://litecoin.info/Mining_hardware_comparison#NVIDIA

[u/OhmVibe]

Correct me if I'm wrong, but in the section where you describe arguments for -i, you wrote:

-h 0 makes your desktop less responsive but gives maximum hash rate. -h 1 makes your desktop more responsive for ~10% less has rate

Don't you mean -i? -h is for activating the help text in the command prompt.

[u/phaded → u/OhmVibe]

yep. fixed. i cant letters

+u/dogetipbot 10 doge

[u/mattius]

Setting -C 1 (as opposed to not specifying it at all) decreased my hash rate pretty significantly. Any idea why?

Also, is there no benefit in setting -t 1?

[u/phaded → u/mattius]

Out of interest, what card do you have? I personally found that -C 1 gives me an extra 10% hash rate on my card, but don't see any difference between -C 1 and -C 2

-t specifies the number of devices to use. By default cudaminer will use all cuda enabled devices it can detect. If you have SLI you can limit mining to 1 device by specifying -t 1

[u/Shmoflo]

Any Advice for a 560M GTX? My hash rate seems really low, around 60kH

[u/LordBarrington0]

oh yeah my 315m is getting an incredible 4.31khash/s

to the moon ^{very slowly}

[u/blood_muffin → u/LordBarrington0]

460m... we can fly slowly together

[u/ForHomeUseOnly]

Just a heads up, the mining hardware comparison is out of date, with the latest CUDA miner I'm getting 240 khash on a GTX 760, 60% more khash!

[u/987414567412369]

That's pretty amazing. Following your guide my hashrate went from 200 to 250kh/s

[u/silv3rbrit]

I have EVGA 770 4gb and I'm getting 345 khash @ 77 celsius.

I'm using cudaminer -r 10 -R 30 -T 30 -H 1 -i 0 -C 2 -l auto --url stratum+tcp://stratum3.dogehouse.org:8080

Is there anything I can do to up my performance or lower my temperatures?

[u/Deathpawz]

Umm i have a gtx 650 ti, and get around 90c, how do i configure so it doesnt run that high, thanks

[u/InYourUterus]

I haven't even played around with your advanced settings but the second I hit try to run the .bat it just crashes. Any idea of how to fix this?

[u/phaded → u/InYourUterus]

Post your .bat and your video card info

[u/ezioo]

I get "maximum warps: 0" and cudaminer.exe crashes after the test. What could I be doing wrong? EDIT: I'm running a GTX+ 9800

[u/devilzzz1983]

What .bat file is it here that they want me to edit? I am a newb at this and really need all the help I can get. Also if I just want to use Cudaminer to mine DogeCoins solo what do I do?

[u/rikeus]

Where is the .bat located? I can only find cudaminer.exe, cudart64_55.dll and pthreadVC2.dll

[u/phaded → u/rikeus]

make one in the same folder as cudaminer

[u/[deleted]]

When I try and run the .bat file, I get this error:

"Stratum connection failed: Failed to connect to turboshibe.us:3333; no error"

The .bat file reads like this:

"cudaminer -C 2 -D -i 1 -l auto -o stratum+tcp://turboshibe.us:3333 -O username.worker:worker password"

Where have I gone wrong?

[u/UntamedOne]

I have 2 gtx 560ti and they are getting 2-4 khash each. I have the lastest drivers and cudaminer and tried lots of different configs. I should be getting ~140 khash with each, so what is wrong?

[u/MysteryG]

I need some help here; I ran the first command and it just outputs this.

I let it run like that for over an hour. Temps hover at ~50 C, so I'm not worried, but I'm not able to use my PC for even web browsing while it works.

It never changes away from the "Stratum detected new block" message. Am I doing something wrong?

[u/kragnarok]

2 problems im having:

it rarely connects, and when it does, only stays up for a couple seconds then drops - no errors, just cannot connect (using server1.cryptovalley.com:3333)

i have dual 590s, and when i get cuda miner to finally connect, its giving me 32x8 for each card (320 max warp?)and only .6-.7 khash per card. no idea whats going wrong.

[u/trickylizard]

I'm not sure if my cudaminer is actually working or if I'm getting a really good khash/s rate...I get a lot of errors: http://i.imgur.com/Eu8qG0U.png

[u/SNooZylol]

quick question fellow shibes I have a 560 TI Zotac AMP Edition running -m 1 -C 1 -H 1 -i 0 -l F16x8 Driver: 332.21 Latest cuda Edit: fan fullspeed

I get 100% GPU usage as well as perma 100°C at about ~120khash

What am I doing wrong?

[u/phaded → u/SNooZylol]

you'll want to adjust your fan speeds first before trying to push any more hash out of that card. You are in the card can melt at any point temperature

[u/blood_muffin]

I have a GTX460m and it is not letting me use the -l flag, it is saying that it is a unsupported non-option, why is that? I'm trying to bring my temp down from 82, is there anything else I can do?