Questions tagged [gpu]

"Graphics Processing Unit" - The specific component on a video card which performs active processing of images. GPUs are commonly used in Bitcoin mining as they are much more efficient at certain varieties of integer math which are a major part of the hashing process underlying Bitcoin mining.

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How to use bitcoind with CUDA-ready box?

I am not asking for mining (which is all the information I could find on the net). I am asking for the regular bitcoind daemon, looking for having a full node with a reasonable high performance per ...
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1answer
4k views

Setting up my BFGMiner with two AMD GPU's

I have two AMD Radeon 7770's in my rig. I am able to get the command prompt of BFGMiner to run fine up, to the point where I need to add my devices (GPU's). I am not sure what commands to use or where ...
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8k views

cgminer doesnt use my GPU

CentOS6 x64, build last cgminer with openCL support [ay@pandora6 log]$ sudo lshw | grep -i geforce product: G73 [GeForce 7600 GS] [ay@pandora6 log]$ uname -a Linux pandora6 2.6.32-358.2....
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What's more important GPU cores or GPU memory?

I have been on the sidelines, watching on and off, looking to attempt mining a few coins. I have also looked at just buying coins, but found that's not so easy to do with anonnimity with all the ...
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32 views

SHA256 speedup possible if executed on GPU

Is it possible to speed up hashing if hashing is done on a GPU? Does that even make sense or are the CPU instructions faster because for normal signature verification you don't gain by parallelizing ...
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1answer
982 views

The warpwallet challenge 2

here you can find a public challenge aimed to brute force a brain wallet private key, derived from 8 char long [a-zA-Z0-9] passphrase with a salt of "a@b.c". Is it possible to adapt an hashing ...
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184 views

GPU VanityGen with AES Encryption?

I'm getting back into Bitcoin and have started pooling savings together into a wallet. I'm moving on to cold storage and need to order some metal cards to keep safe somewhere. I need to generate an ...
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133 views

Is it possible to identify exact GPU type using miner's log file?

In the miners (sgminer) log file I have the following lines: [21:14:19] ADL index 0, id -546853344 - BIOS partno.: 113-C3865001-T04, version: 015.041.000.000.000000, date: 11/25/13 02:47 [21:14:19] ...
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881 views

Using bfgminer on an Intel GPU on Ubuntu 12.04

I am currently running Ubuntu 12.04 LTS on an i5 core and Ivy Bridge GPU. Using bfgminer I have successfully mined on my CPU, but my GPU is never recognized. I have installed OpenCl for Intel ...
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need help generate single publickey on cuda device

I am trying to generate a public key from a hash on a cuda device. I couldn't find a ready source for that task. So I want to try to modify/ create a new function for this task. the source code I want ...
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cgminer cldevicesnum returned error no gpus usable

[2020-04-03 20:10:11] Started cgminer 3.7.2 [2020-04-03 20:10:11] Loaded configuration file cgminer.conf [2020-04-03 20:10:11] clDevicesNum returned error, no GPUs usable [2020-04-03 20:10:11] No ...
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136 views

GUIMiner not utilizing 2nd GPU

I've just setup GUIMiner, I have two graphics cards, and they are both running. However, one is getting ~400 Mhash/s, the other is getting ~10 Mhash/s. The monitoring of the GPU's also shows one ...
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945 views

16x Presence Short (1x Riser)

I have an MSI Z77a-GD65 and I need to short one of the slots to get it to work. The MB was working fine with 5 GPUs until a couple of weeks ago when one of the slots stopped working. I know it's the ...
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368 views

Can I connect 2 different PSU's to 1 GPU?

I have 2 PSU's 850W and 750W 1 motherboard and 4 cards 280x GPU's. I would like to connect 2 of the GPU's to a second PSU. So it means 2 cards are powered by PSU A. and 2 by PSU A via the motherboard ...
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256 views

GPU Mining Speed

I am a bit new to the whole mining thing and just have a economical issue when it comes to selecting GPUs. Sorry if the title is in appropriate. Let's just say in mining Ethereum, a 1070 ti (costs $...
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15k views

NVIDIA Tesla K80 vs M60, if electricity and capital wasn't a factor

If I have a setup where electricity and capital are unlimited, which GPU would be more efficient at mining cryptocurrency (such as Ethereum) between the NVIDIA Tesla K80 and the NVIDIA Tesla M60? I ...
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does OpenCL on Nvida work as well as OCL on ATI?

in most cases I've seen mining techniques listed as either ATI with OpenCL or Nvidia with Cuda. but I have seen Nvidia graphics that claim to support OpenCL. is this implementation different or would ...