Tagged Questions

Questions about Bitcoin in the context of CPUs (as opposed to GPU or ASIC mining)

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0
votes
2answers
78 views

How can i set up CPU mining on bfgminer?

I just downloaded Bitcoin Core and BFGminer on linux and I would like to start CPU mining just to see how it works, maybe later I'll buy ASIC. So, how can I configure CPU mining on BFGminer?
1
vote
3answers
192 views

Does BitMinter not use CPU's for mining at all?

I just started using BitMinter on several computers. They have decent GPU's that are detected and working fine, but I'd like to be able to use my CPU's also and I can't seem to find any method to ...
0
votes
0answers
33 views

Why when I use a detached screen section to mine with my GridSeed it became so slow?

I am not so into Linux and I have the following situation related a strange behavior of the screen command that I use mining on . The situation is the following one: on a RaspBerry Pi I have ...
0
votes
1answer
79 views

How much would I earn [duplicate]

how much estimate would I earn if I use cpuminer and 20ECU? Because im paying for a cloud instance for $0.01/hour. And it is 20ECU. I just want to make sure I can get profit. Thank you!
2
votes
2answers
291 views

Isracoin: What hashrate should I be getting with intel core i5?

I'm only getting 13 kh/s using minerd with intel i5 and the lowfeemining.org pool. Shouldn't I be getting a better hashrate?
1
vote
1answer
199 views

Using Ufasoft miner with 50BTC

So I decided to take a look at this bitcoin stuff. I would like to test Ufasoft for CPU mining. Don't really care about performance. There is this nice guide: https://50btc.com/en/articles/view/68 ...
4
votes
1answer
136 views

Does CPU mining become efficient as memory requirements increase?

I am focusing on an anti scrypt coin called Vertcoin which increases it's N-factor at a set interval. On their main page on bitcointalk it states that CPU computation will make gains as N-factor ...
1
vote
1answer
1k views

Best strategy for using hundreds of 1 kh/s CPU litecoin miners

Some friends and I currently run a webapp and we rent 50 dedicated servers that run a few dozen linux VMs each. During the night they are not used a lot so we thought we could use them for cpu mining ...
-1
votes
1answer
146 views

Configure CPU Scrypt miner

I've decided to give 42coin a shot with CPU mining but the CPU miner that I've found doesn't specify how to configure it. It DOES give you the parameters though. I'm not sure if I should add a .bat ...
1
vote
1answer
155 views

Reindexing of blockchain using bitcoin qt v8.5 using 427% of Macbook CPU

My bitcoin qt client v8.5 crashed last week (I had already got full blockchain indexed a long time ago) and I had to force quit it. It's now re-indexing the blockchain but using sometimes up to 427% ...
1
vote
2answers
362 views

Specify which CPU threads are used using cpuminer

I'm using the latest version of cpuminer on a quad core cpu. How can I tell it which physical cores to use, 2 threads uses 1 and 2 but I want it to use 3 and 4 instead as I have other things using ...
2
votes
3answers
800 views

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 ...
0
votes
2answers
166 views

Is the RAM or the computing power more important for the hashrate?

I have done my research on the internet and failed to come up with any suitable answer. I asked on a few forums as well, but no results. So my question is, if I have two separate computers, one with ...
-2
votes
2answers
189 views

How long to earn fractions of bitcoin

I started mining today, and I'm using the bitcoin GUI miner, along with rpc2013-cuda. I'm running algorithms on the CPU(completely maxed out - It's a core i7 quad-core/Hyperthreaded at 2.3GHz) and the ...
-3
votes
3answers
278 views

Can I mine with an E5 2620 CPU? [closed]

I plan on mining litecoins, but I'm somewhat late and new into the game. Would it be better for me to get a video card later, tight on budget? I'm not sure how to do the math. There isn't any ...
0
votes
2answers
6k views

cpuminer json rpc call failed(; ・`д・´) [closed]

root@i-M116V:/var/www/cpuminer-2.2.3# ./minerd [2013-12-27 15:22:35] 2 miner threads started, using 'scrypt' algorithm. [2013-12-27 15:22:35] Binding thread 1 to cpu 1 [2013-12-27 15:22:35] Binding ...
1
vote
1answer
215 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 ...
1
vote
2answers
543 views

Will a USB mining device use my computer's processing power?

I know that if I use Pooler's CPUMiner it will use all my computer resources for mining purposes. What if I use one of those Butterfly Labs 5 GH/s SC devices will it use 100% of my CPU power or the ...
2
votes
4answers
12k views

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 ...
2
votes
3answers
485 views

Bitcoin is using +90% CPU power using Ubuntu 12.04?

I am using Ubuntu 12.04 and Bitcoin client v0.8.6.0-g03a7d67-beta and Qt version 4.8.1 as the GUI. My CPU is heating up and is automaticly shutting down after 30 minutes and sometimes after many ...
3
votes
1answer
1k views

Is mining bad for the CPU?

I've started to mine some Primecoin on a couple of spare VPS's, and it's turning out to be profitable. I'm also mining a bit on my laptop when I'm not using it (e.g. during lunch break). Will mining ...
0
votes
0answers
95 views

High idle-times for CPU miners

With bfgminer installed on my cpu-miner (laptop system), I'm seeing less than 10 bits of work being provided in an hour. While I know that the reality is that cpuminers are slow, the solution of not ...
1
vote
0answers
462 views

CPUMiner with Litecoins

I have started litecoin mining with cpuminer on Ubuntu 12.04 and I keep getting this message. PROOF OF WORK: RESULT: false(booooooo) From what I understand litecoin uses scrypt however my ...
4
votes
5answers
9k views

Is there an altcoin that is only feasible to mine by CPU?

I'm interested in mining altcoins, mainly to turn some servers into (literal) space heaters, since it's winter. One thing that really interests me is if an altcoin has been designed to only be ...
-1
votes
1answer
469 views

Which crypto-currencies can be mined effectively with GPU

We often hear both CPU and GPU mining are dead. There is a number of new currencies designed specifically for CPU or GPU mining. Which are these? Can you mine them effectively with GPU?
6
votes
3answers
23k views

Litecoin - Is better use a good CPU or good GPU?

I heard in some forums that mining Litecoin is better using a good CPU (Processor), different from Bitcoin that's better mine using a good GPU (Videoboard). I want know, this is true? For ...
1
vote
0answers
140 views

How has mining evolved since the start of Bitcoin?

Can someone post a detailed description on how mining has evolved since the introduction of Bitcoin all the way till today? I mean quantity of miners, hardware used, profits made, ROI etc. I guess ...
0
votes
4answers
34k views

What should I choose - GPU Mining or CPU Mining? [duplicate]

I have a HP Pavilion G6-2313AX Laptop with Processor : APU Quad Core A10 and Graphics : 512 MB AMD Radeon HD 7660G (Integrated) and 2 GB ATI Mobility Radeon 7670M HD Graphics (Dedicated) I know ...
1
vote
2answers
1k views

Why is a GPU a better tool for bitcoin mining than a CPU and is an FPGA better than both?

I was looking into the best tools for bitcoin mining and found out that GPUs are a better tool for bitcoin mining than CPU's. What is the reason for this? furthermore, I found dedicated chips that ...
3
votes
1answer
494 views

Can bitcoind still do CPU-based mining or was that feature removed?

I'm seeing conflicting claims about whether bitcoind can still do CPU-based mining. As far back as 2011 people were saying that feature was going to "soon" be removed. Was mining removed? By the way ...
1
vote
1answer
15k views

Which coin to mine with CPU long-term [closed]

I have a machine with 48 CPU cores, running Linux. I would like to mine for a coin, not to sell immediately, but in several months when the value has increased (hopefully). I don't want to keep ...
0
votes
1answer
786 views

Only 70Mh/s with good PC! AMD CPU not supported? [duplicate]

I have a AMD 8-Core-CPU with a NVIDA GTX 560 for Bitcoin-Mining but I only get 70Mh/s... If I start CGMiner without GPU it detects nothing. Why cant I use my CPU to mine Bitcoins? Is that an error by ...
4
votes
1answer
3k views

CPU Mining: Optimal Number of Threads

(I guess this question in principle applies likewise to Bitcoin, but given how un-profitable CPU mining of Bitcoin seems to be, this question actually arose with regards to Yacoin mining). I am ...
1
vote
1answer
2k views

Running a command line bitcoin CPU miner on ubuntu for slush's pool

I don't intend to do this long term as I am pretty sure the cost of the power would exceed the earnings, this is more for educational purposes. What I'm looking for is a command line miner for Ubuntu. ...
0
votes
1answer
2k views

Hashrates for Opteron and Xeon CPUs

I'm looking for the benchmarked hashrates of both a 1.0GHz Opteron 2007 CPU, as well as a 1.2GHz Xeon 2007 CPU. I looked here but didn't see them mentioned. Also, on that references page, I don't see ...
1
vote
3answers
779 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? ...
1
vote
3answers
2k views

Does having the Bitcoin Client running always use up a lot of the CPU?

I have the Bitcoin Client running on my laptop, it is up to date and now fully synchronised, but it is running the CPU at almost 100% and so makes doing anything else extremely slow. Is this normal? ...
6
votes
2answers
32k views

How to configure CGMiner with CPU?

I'd like to start mining Bitcoins on a CPU for testing purposes. I've downloaded CGMiner, compiled it and created a config file without any problems, however starting it results in an error message: ...
9
votes
4answers
109k views

Fastest CPU Miner

I have a Windows Server with 20 cores at 2.10 Ghz (AMD Opteron 4171 HE). I am currently using Ufasoft CPU miner and getting about 35 Mhash/s. I want to know what is the fastest CPU miner that I can ...
0
votes
1answer
2k views

Trouble CPU Mining with CGMiner and CPUMiner on Ubuntu Server 12.04

I just started mining within the past week on my laptop but I am trying to set up 2 dedicated mining servers to run 24/7. I've been using UfaSoft's CPUMiner on Windows 8 on the laptop, but I cant seam ...
2
votes
1answer
681 views

What are the mining spec differences between Bitcoin and Litecoin?

Obviously, Litecoin mining requires less computational power as it it more CPU friendly, but does this mean that if you switch a GPU Bitcoin miner To Litecoin mining you will be wasting your ...
0
votes
2answers
481 views

Could i build a mining rig with these parts?

I have researched bitcoin mining for a while, and i have decided that i want to build a dedicated miner. Since i am very low on budget, I thought that maybe i could use an old computer that i have in ...
-4
votes
1answer
590 views

The bitcoin miner lags my cpu 99% and how i will earn bitcoins

Bitcoin Miner program uses my CPU 99% can you just little make it no laggy and how do i earn bitcoins? in the internet sites and forums they dont sya anything about earning bitcoins
6
votes
2answers
2k views

How do I generate coins on testnet? CPU, GPU, FPGA? Are there pools?

Is it possible to mine coins on testnet using CPU? GPU? How about FPGAs? Are there any pools running on testnet? The reason I am looking for this is so I can master the new API's relating to ...
5
votes
1answer
313 views

Is there a bitcoin market for CPU time / memory space / disk space?

Bitcoin mining pools are like lending / borrowing cpu time, but it's only for hashing. Is there something more general; a market where you can lend and borrow cpu time, disk space and so on?
11
votes
4answers
4k views

What is more effective than ASIC mining?

Considering that mining progressed from CPU, to GPU, to FPGA, and now ASIC mining... have we finally hit the end of the road for technological advancement? What future optimizations can occur after ...
4
votes
1answer
784 views

Does Bitcoin-QT use more CPU when its idle than during synchronization?

I am running the standard client on a micro Amazon EC2 instance. When I am synchronising Bitcoin with the network, it uses about 50% of the available CPU. After it is fully synchronised, I leave it ...
7
votes
1answer
15k views

How do I solo mine on a mac?

I know it's pointless. I just want to learn how to do it. Are there any guides out there?
7
votes
1answer
3k views

Can I CPU mine others coins to win Bitcoins?

I have a useless Nvidia, until now, unconfigurable to mine (7300) So, if I mine just with CPU, can I get more coins mining others coins like NMC,LQC,LTC,SC, or whatever, and trading after for BTCs?
11
votes
3answers
10k views

CPU Mining with a large EC2 cluster - worth the effort?

I'm relatively new to Bitcoin, and am playing around with pool mining for fun. I have access to a fair amount of EC2 instances - c1.mediums - between 30 and 50 on a given day. I already have the ...