<p>If you start the bitcoin-qt client from the command line with the <code>bitcoin-qt.exe -gen 1</code> command, then it will generate bitcoins using your CPU. Alternately, use <a href="https://github.com/jgarzik/cpuminer" rel="nofollow">cpuminer</a>. (<a href="http://yyz.us/bitcoin/" rel="nofollow">Builds</a>)</p>

CC BY-SA 3.0
2013-04-04T19:54:13.617Z
I have started the bitcoin-qt how you stated it but guiminer still says it's stopped.
René Nyffenegger
CC BY-SA 3.0
2013-04-04T19:55:47.477Z
The solution I gave you doesn't involve guiminer at all, that's why it still says it's stopped.
Nick ODell
CC BY-SA 3.0
2013-04-04T19:58:20.760Z
But I wanted to involve guiminer.
René Nyffenegger
CC BY-SA 3.0
2014-07-31T11:30:49.687Z
The question was how to get GUIMiner to do the task.
Emre K.
CC BY-SA 3.0
2013-04-04T17:45:02.473Z
2013-04-04T17:45:02.473Z
Nick ODell
<p>Download the OpenCL drivers for the processor you have from the official links;
<a href="http://en.wikipedia.org/wiki/OpenCL#Drivers" rel="nofollow">http://en.wikipedia.org/wiki/OpenCL#Drivers</a></p>

<p>I installed the OpenCL drivers for AMD and am now able to mine using my hex core AMD system CPU along with the GPU.   I installed the Intel OpenCL drivers inside of VMware fusion on my MacBook Pro and am able to mine using guiminer within VMware fusion in Windows 7.</p>

<p>For comparison, </p>

<p>I get 1Mh/s in VMware Fusion Win7 64BIT on my MacBook Pro Retina (early 2013) using the CPU.</p>

<p>I get 4.7Mh/s using GUIMiner inside OS X using the CPU and OpenCL.  </p>

<p>I get 1.7Mh/s using GUIMiner and OpenCL for the CPU on my AMD X6 1045T.</p>

<p>I get 22Mh/s on my MacBook Pro using BitMinter and my GT 650-M GPU.</p>

<p>I get 17Mh/s on my AMD Win7 using GUIMiner and my nVidia 620 GPU.</p>

<p>I am a bit shocked that the 620 and 650 GPU results are so similar.</p>

CC BY-SA 3.0
2013-06-04T05:19:23.697Z
BitMinter's client might also just be slower.
Nick ODell
CC BY-SA 3.0
2013-06-04T03:19:33.780Z
2013-06-04T03:19:33.780Z
Edwin
<p>Install <a href="http://software.intel.com/en-us/vcsource/tools/opencl-sdk" rel="nofollow">Intel SDK for OpenCL* Applications</a>. I'm gussing it's a framework for <a href="https://en.wikipedia.org/wiki/OpenCL" rel="nofollow">OpenCL</a>. It worked for me.</p>

CC BY-SA 3.0
2013-10-01T14:32:42.017Z
2014-01-11T10:39:20.613Z
2014-01-11T10:39:20.613Z
nandonachi
<p>I am trying to setup <a href="https://en.bitcoin.it/wiki/Poclbm-gui" rel="nofollow">GUIMiner</a> together with mining.bitcoin.cz. As I am working on a laptop with an Intel graphic card I am (probably?) unable to use GPU mining. So, just for a test, I tried to run GUIMiner without GPU support, that is as a CPU miner (if this is the correct word).</p>

<p>Clicking the <code>start mining</code> button doesn't seem to make anything run. I might be mistaken, but the lower right corner of the application keeps saying <code>stopped</code>.</p>

<p>The <em>console</em> tab says:</p>

<blockquote>
  <p>2013-04-03 17:51:51: Running command: poclbm.exe <strong><em>:</em></strong>@api2.bitcoin.cz:8332 --device=0 --platform=0 --verbose -r1` </p>
</blockquote>

<p>But no error message, either.</p>

<p>So, I go to cmd.exe and copy <code>poclbm.exe ***:***@api2.bitcoin.cz:8332 --device=0 --platform=0 --verbose -r1</code>. This results in </p>

<pre><code>No PyOpenCL
Not using OpenCL
Nothing to mine on, exiting
</code></pre>

<p>which can be taken as an error message. I believe that "OpenCL" indicates that the program wants to use a GPU (although) I am not sure. I just want to test the mining functionality and see if I can particiapte in the mining pool, at the moment without graphic card, only the CPU. Is this somehow possible?</p>

<mining-pools><miner-configuration><cpu-mining>
How can I make GUIMiner use the CPU for mining?
René Nyffenegger
# How can I make GUIMiner use the CPU for mining?

(Asked by: username_0 on 2013-04-04)

I am trying to setup [GUIMiner](https://en.bitcoin.it/wiki/Poclbm-gui) together with mining.bitcoin.cz. As I am working on a laptop with an Intel graphic card I am (probably?) unable to use GPU mining. So, just for a test, I tried to run GUIMiner without GPU support, that is as a CPU miner (if this is the correct word).

Clicking the `start mining` button doesn't seem to make anything run. I might be mistaken, but the lower right corner of the application keeps saying `stopped`.

The *console* tab says:

> 2013-04-03 17:51:51: Running command: poclbm.exe ***:***@api2.bitcoin.cz:8332 --device=0 --platform=0 --verbose -r1`

But no error message, either.

So, I go to cmd.exe and copy `poclbm.exe ***:***@api2.bitcoin.cz:8332 --device=0 --platform=0 --verbose -r1`. This results in

```
No PyOpenCL
Not using OpenCL
Nothing to mine on, exiting

```

which can be taken as an error message. I believe that "OpenCL" indicates that the program wants to use a GPU (although) I am not sure. I just want to test the mining functionality and see if I can particiapte in the mining pool, at the moment without graphic card, only the CPU. Is this somehow possible?

**Tags:** mining-pools, miner-configuration, cpu-mining


---

## 3 answers

### Answer by username_1 on 2013-04-04. Score: 3

If you start the bitcoin-qt client from the command line with the `bitcoin-qt.exe -gen 1` command, then it will generate bitcoins using your CPU. Alternately, use [cpuminer](https://github.com/jgarzik/cpuminer). ([Builds](http://yyz.us/bitcoin/))

> **Comments:**
> **username_0**: I have started the bitcoin-qt how you stated it but guiminer still says it's stopped.  
> **username_1**: The solution I gave you doesn't involve guiminer at all, that's why it still says it's stopped.  
> **username_0**: But I wanted to involve guiminer.  
> **username_2**: The question was how to get GUIMiner to do the task.  

---

### Answer by username_3 on 2013-06-04. Score: 0

Download the OpenCL drivers for the processor you have from the official links;
<http://en.wikipedia.org/wiki/OpenCL#Drivers>

I installed the OpenCL drivers for AMD and am now able to mine using my hex core AMD system CPU along with the GPU. I installed the Intel OpenCL drivers inside of VMware fusion on my MacBook Pro and am able to mine using guiminer within VMware fusion in Windows 7.

For comparison,

I get 1Mh/s in VMware Fusion Win7 64BIT on my MacBook Pro Retina (early 2013) using the CPU.

I get 4.7Mh/s using GUIMiner inside OS X using the CPU and OpenCL.

I get 1.7Mh/s using GUIMiner and OpenCL for the CPU on my AMD X6 1045T.

I get 22Mh/s on my MacBook Pro using BitMinter and my GT 650-M GPU.

I get 17Mh/s on my AMD Win7 using GUIMiner and my nVidia 620 GPU.

I am a bit shocked that the 620 and 650 GPU results are so similar.

> **Comments:**
> **username_1**: BitMinter's client might also just be slower.  

---

### Answer by username_4 on 2013-10-01. Score: -1

Install [Intel SDK for OpenCL\* Applications](http://software.intel.com/en-us/vcsource/tools/opencl-sdk). I'm gussing it's a framework for [OpenCL](https://en.wikipedia.org/wiki/OpenCL). It worked for me.


---

