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 run simple python function on GPU using cuda and numba?

I have a simple code that I would like to run on GPU. I have seen many tutorial and it seems like I have to put @cuda.jit before my function to use it on gpu, but it is not working. For the moment, ...
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How to mine Bitcoin in Windows? How to mine Bitcoin using Intel GPU? [duplicate]

I want to mine Bitcoin in Windows, which is the best and trusted software that I can use to mine Bitcoin in Windows? I want to use both my Intel GPU and CPU to mine Bitcoin.
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11k views

Mining Bitcoin on Linux with CUDA?

I have a Linux machine with an Nvidia GPU (GeForce GTX 760). Is there a tool, rather than writing your own, that can currently mine Bitcoin using CUDA on Linux?
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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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9k views

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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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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Do you have to use a four gigabyte graphic processing unit to mine in 2021? [closed]

The reason why I'm asking is because i own a ASUS GeForce GTX 660 Ti 967Mhz PCI-E 3.0 2048Mb 6008Mhz 192 bit gpu and I've googled how to mine with it in 2021 but haven't found anything solid as of yet....
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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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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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How to generate bitcoin address with gpu in python [duplicate]

I have seen a lot of bitcoin address generator with python, but all of them run on cpu, and are very slow,, for fun and educational purposes, I have been trying to use gpu to run the python script to ...
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clDevicesNum returned error, no GPUs usable

I get this error with BFGMiner, when running "bfgminer -D -d?:" [2013-04-25 09:47:31] ft232r_scan: Found 093a:2510 - not a ft232r [2013-04-25 09:47:31] ft232r_scan: Found 1d6b:...
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Which is the best Bitcoin Vanity Address Generator? [duplicate]

Can someone please suggest a Bitcoin Vanity Address Generator which can generate at least six characters (ideally case sensitive). It would be even better if the generator could create seven or more ...
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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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3k views

When will FPGAs and ASICs 'replace' GPUs for mining?

Please explain in detail, or provide an an estimate, at least.
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283 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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Mining Zcash using cluster of GPU's

I have a basic knowledge about an idea of cryptocurriencies. Recently I have read articles about Zcash. Rumours has it that it's the most profitable cryptocurrency on the scene. Me and my co-...
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483 views

Why is Ethereum total network hashrate still increasing if there are no GPUS to buy?

The total Ethereum network hashrate is close to doubling relative to its December level. Mining difficulty is also increasing proportionally of course as the total reward per block stays the same. ...
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355 views

How is Ethash a 'memory hard' algorithm if it utilizes peak GPU memory bandwidth?

According to the Ethash algorithm described here, the computation for each nonce requires a loop of 64 iterations, where each iteration reads a chunk of 128 bytes from a pseudo-random location in ...
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GPU mining slows down my ubuntu

I'm trying to mine using my CPU and GPU. When the CPU is set to use all its cores, I have no problems, but when I use my GPU, my desktop gets way too slow because unity uses it too I think, so I need ...
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Can High CPU Droplets from Digital Ocean be used for Bitcoin Mining? [duplicate]

Can the High CPU Droplets from Digital Ocean be used for Bitcoin Mining? Can they compete with GPUs? Digital Ocean High CPU Droplets
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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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GPU mining equation?

Is there an equation that estimate the hashing rate of a GPU from its specs: cores, clock, ... ? I need this because the hardware comparison list is not complete and I am considering buying a new ...
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1answer
99 views

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 ...
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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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4k views

“Can't detect any devices”

I'm trying to start mining using my GPU (ATI Radeon HD 4850) but when I try to run cgminer it cant detect any devices. I use this to run cgminer: cgminer --scrypt -o stratum+tcp://stratum2.dogechain....
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ASIC and FPGA feasibility as GPU

I've done a minor amount of research into the topic of bitcoin mining using ASICs and FPGAs, and I've started wondering: Could these be used as GPUs (possibly specialized to a subset of what modern ...
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Now that my GPU mining rig will be made obsolete, where to turn?

With the return from GPU mining likely to be affected by ASICs, where can miners turn their machines? Should I become a pro gamer? Join a rendering farm for cash (do they exist?) and let Disney use my ...
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Mining with only 1 GPU

I have a GTX Ttan and plan on getting a GTX 1060. I want to only mine with the 1060. How would I do that. Im using sgminer v5.3.1
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6answers
12k views

Why would someone rent hashing power?

I have seen some people on the bitcointalk forum looking for hashing power to rent (here is one example) and usually they pay more to rent the rig than they would earn by selling the mined coins at ...
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Should I mine bitcoins or litecoins?

I don't pay for my own power, but I have two problems mining. I am CPU mining at 250 mhash/s because my AMD Radeon HD 7800 series graphics card will only produce 4.0 mhash/s (the other problem I'm ...
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5answers
22k views

Is it possible to use servers to mine bitcoins?

I have a vps, it's debian but i can install any os, i don't use it a lot, can i use it to mine bitcoins? Correct me if I'm wrong, bitcoins uses video cards, and as far as i know, vps and dedicated ...
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441 views

Broken miner: no more backup pools

I have 3 graphics cards running poclbm each with a rate of about 140 MH/s. This has been running since I posted an earlier question ( "No more backup pools left. Using primary and starting over.&...
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Is there any reason to invest on GPU based system these days? (March 2013) [duplicate]

I wonder whether I should spend around 1000$ - 1500$ for buying a GPU based system that will mine at 2GH/s. Is it still worth it? What will happen when all those ASIC machines will arrive? will i ...
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3k views

If Bitcoin mining is becoming more and more impractical, what then?

If Bitcoin mining is becoming more and more impractical, where you'll need to buy like a ButterflyLabs unit, and where even eventually a room full of these units might not be enough some day, what ...
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1answer
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only getting 52khs on Litecoin mining with a Nvidia GTX670

I want to give mining a try with the current video card i have. I know its not good for mining but its a start. I use cgminer and link it with WeMineLTC. For some reason I only get 52 KHash/s. I saw ...
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Using ATI and Nvidia Cards together

I want to mine Litecoin on an ATI 7950 while being able to play on my GTX 680. Is this possible ? If yes then how ?
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1answer
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No Miner can connect to RPC Server

I'm new to this BitCoin, as in read about it yesterday started with it today. This technology has intrigued me to the level I cannot explain, its truly genius! Back to my problem, I have a NVIDIA ...
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1answer
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My Radeon 7570 that comes with my hp envy h8-1409 is not being detected by CGminer (Litecoins)

I'm using Windows 8.1 and CGminer 3.1.0 trying to mine litecoins What's odd about this computer is that the video card is some kind of HP OEM device, that's getting driver updates (latest August 2013)...
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1answer
10k views

Can i mine with a GTX 760? [duplicate]

Well, bit coin mining is looking more and more promising and to be honest, i don't know a lot. I heard you get a lot from AMD cards, but if i use my Nvidia card will it even be worth it? Thanks in ...
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1answer
396 views

Adding an additional GPU for LTC mining

I've just recently started litecoin mining on a kind of old AMD GPU. My motherboard has space for 2 additional cards. I'd like to drop in a new card specifically for litecoin mining, but... I'm not ...
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1answer
467 views

Parts of a Bitcoin Mining Rig

Original question: How important is a strong CPU and GPU for ASIC mining? I would assume that the GPU could be a cheap one because even if its high-end it probably won't help, and that the CPU should ...
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6k views

Mining bitcoin using cudaminer?

I have started mining using an nvidia gtx 670m GPU. I have compiled cudaminer and started mining on the slush pool. However, during mining I always get results similar to: accepted: 0/X (0.00%), xx....
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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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3answers
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Scrypt (Litecoin) memory / performance tradeoff

For Litecoin, if memory size is increased in processing the Scrypt algorithm, for example to 384 kB instead of 128 kB (and assuming likewise an L2 cache size of 384 kB), would the typical CPU ...
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2answers
937 views

Energy & performance comparison: GPU mining vs playing HD Video

Using the built-in ATI video card on my computer, I can mine at about a 30-50 MHps rate. I'm wondering, how does this amount of work compare to normal video card operation? Or how can it be calculated?...
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2k views

Are there any Bitcoin miners that run from a web page and use the GPU? [duplicate]

Possible Duplicate: What is the status on webminers? I love Bitcoin mining so far. However, I need to do it without running a Java applet that I download {see BitMinter for an example of this} ...
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1answer
402 views

Is it possible to mine with both (2) GPUs in headless mode?

I've got a Mac Pro with two different GPUs in it—one is a new 5850 and the other is some old (stock) Radeon. I'm wondering if it is possible to mine with both cards simultaneously if the OS is ...
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4answers
7k views

LTC mining is better than BTC mining?

I've got a notebook with these specifics: CPU: AMD Phenom X3 II N830 3.14GHz (3-Core) GPU: ATI Radeon HD 5650 1GB Mining 1 LTC is faster than mining 1 BTC? How I estimate the times for BTC and LTC? ...
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3k views

Mining computations by the numbers [duplicate]

On average, how many "computations" (GPU computations, CPU computations, CPU cycles, etc.) does it take to solve a block ("win" a mining race)? What are these computations measured in? Operations? ...
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1answer
2k views

Can one GPU mine on Mac OS X using cgminer?

I succesfully installed cgminer on my mac but every time I try to run it I get the message [2013-09-16 15:03:49] clDevicesNum returned error, no GPUs usable why is this? Is it that you cannot mine ...